JP2005290707A - Fire protecting magnetic wall surface material and fire protecting magnetic wall using the same - Google Patents

Fire protecting magnetic wall surface material and fire protecting magnetic wall using the same Download PDF

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JP2005290707A
JP2005290707A JP2004103889A JP2004103889A JP2005290707A JP 2005290707 A JP2005290707 A JP 2005290707A JP 2004103889 A JP2004103889 A JP 2004103889A JP 2004103889 A JP2004103889 A JP 2004103889A JP 2005290707 A JP2005290707 A JP 2005290707A
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magnetic wall
fireproof
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wall
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JP4153891B2 (en
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Kazumasa Fujii
一正 藤井
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Nichilaymagnet Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire protecting magnetic material and a fire protecting magnetic wall using the fire protecting magnetic material provided with fire protecting performance and no noxious gas generating property required for a fire protecting wall covering material and allowing easy sticking or separating of a display material, or a wall covering material by magnetic attracting force. <P>SOLUTION: A composition comprising a specific (small) quantity of brominated aromatic flame retarder and zinc-based flame retarder and a specific quantity of ferromagnetic powder with chlorinated polyolefinic elastomer as a binder is formed into a sheet with a thickness of 0.05-0.6 mm to obtain a fire protecting magnetic wall surface material A1 having excellent flame resistance, while producing little noxious gas. The excellent fire protecting magnetic wall C1 can be formed by sticking the fire protecting magnetic wall surface material A1 to a wall backing material 2 such as a nonflammable gypsum board 3 made of a nonflammable or quasi-nonflammable material. A surface covering material can be laminated on the surface of the fire protecting magnetic wall surface material A1, or a display piece can be magnetically stuck to a part or the whole of the surface of the fire protecting magnetic wall surface material A1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、建物の防火壁装材料及びそれを用いた壁に関するものである。更に詳しく述べると、建物の壁面に磁石の吸着力によって、表示材、装飾材、壁表面材等を容易に貼着乃至剥離できる防火磁性壁面材及びそれを用いた防火磁性壁に関するものである。   The present invention relates to a fire wall covering material for a building and a wall using the same. More specifically, the present invention relates to a fireproof magnetic wall material that can easily stick or peel off a display material, a decoration material, a wall surface material, and the like on a wall surface of a building by an attractive force of a magnet, and a fireproof magnetic wall using the fireproof magnetic wall material.

従来は、磁石の吸着力によって容易に貼着乃至剥離できる方法として、シート状磁石または表装材に積層したシート状磁石を壁下地に接着剤を用いて貼着した壁面に対して、表示材、装飾材、壁表面材等を積層したシート状軟質磁性体、例えば、鉄板、鉄粉をエラストマーに練り込んだシート等を磁石の吸着力によって貼着する方法と、逆に、シート状軟質磁性体または表装材を積層したシート状軟質磁性体を壁下地に接着剤を用いて貼着した壁面に対して、表示材、装飾材、壁面材等を積層したシート状磁石を磁気吸着力によって貼着する方法がある。(特許文献1及び特許文献2参照。なお、壁下地材に接着剤を用いて積層して用いるシート状軟質磁性体については、特許文献3、特許文献4、特許文献5参照)   Conventionally, as a method that can be easily pasted or peeled by the magnet's attractive force, a sheet-shaped magnet or a sheet-shaped magnet laminated on a cover material is attached to a wall surface using an adhesive, a display material, A sheet-like soft magnetic material in which decorative materials, wall surface materials, etc. are laminated, for example, an iron plate, a sheet in which iron powder is kneaded into an elastomer, etc. Alternatively, a sheet-like magnet with laminated display materials, decoration materials, wall materials, etc., is stuck to the wall surface, which is made by laminating a sheet-like soft magnetic material laminated with a cover material on the wall base using an adhesive. There is a way to do it. (See Patent Document 1 and Patent Document 2. For the sheet-like soft magnetic material used by laminating the wall base material with an adhesive, refer to Patent Document 3, Patent Document 4, and Patent Document 5.)

その他、シート状磁石、または表装材を積層したシート磁石を壁下地に接着剤を用いて積層した壁面に対して、表示材、装飾材、壁表面材料を積層した、前記シート状磁石と同様に着磁を施したシート状磁石を用いて、磁石の異極吸引、同極反撥によって、壁下地側の着磁極に誘引されて、一定方向に整列貼着させる方法がある。(特許文献6参照)   In addition, similar to the above-mentioned sheet-shaped magnet, in which a sheet-shaped magnet or a sheet magnet laminated with a cover material is laminated on the wall base using an adhesive, a display material, a decorative material, and a wall surface material are laminated. There is a method of using a magnetized sheet-like magnet that is attracted to the magnetic pole on the side of the wall base by attracting the magnet with different polarities and repulsive repulsion and aligning and sticking in a certain direction. (See Patent Document 6)

一方、難燃性のシート状磁石乃至磁石の被着体となるシート状軟質磁性体としては、金属水酸化物系難燃剤と赤リン(難燃剤)を含有するものが提案されている。これは、電気・電子機器分野に開発されたもので、防火壁装材としての防火性能とガス有害性を考慮していない。(特許文献7参照)   On the other hand, as a flame retardant sheet-like magnet or a sheet-like soft magnetic body serving as a magnetic adherend, one containing a metal hydroxide flame retardant and red phosphorus (a flame retardant) has been proposed. This was developed in the field of electrical and electronic equipment, and does not take into account fire performance and gas hazard as fire wall materials. (See Patent Document 7)

即ち、電気・電子機器の難燃性能は、有機高分子材料が着火しても火災の原因とならないように、小火源での短時間加熱後の速やかな自己消化性と、家電製品の内部の綿埃への着火を生じないように、着火高分子材料が熱により流動し液滴が落下して綿埃に着火しないことが要求される。
評価は、通常UL94プラスチック材料の難燃試験法によって、20mm垂直試片による残炎時間と液滴落下による着火の有無を試験する。
In other words, the flame retardant performance of electrical and electronic equipment is such that it does not cause a fire even if the organic polymer material ignites, and it can be rapidly self-digested after short-time heating in a small fire source, and the interior of home appliances. In order to prevent ignition of the cotton dust, it is required that the igniting polymer material flows due to heat and the droplets fall to prevent the cotton dust from being ignited.
Evaluation is usually conducted by the flame retardancy test method of UL94 plastic material to test the after-flame time by a 20 mm vertical specimen and the presence or absence of ignition by dropping a droplet.

また、発明の属する技術分野ではないが、電子機器等に用いる電磁波吸収体で、組成的に似かよった技術が開示されている。これは後で述べる本発明に比べ、有機臭化物系難燃剤と亜鉛系難燃剤の添加量が極端に多く、壁装材(内装材)のようにガス有害性を考慮していないので、防火壁装材への応用は好ましくない技術である。(特許文献8参照)   In addition, although not in the technical field to which the invention belongs, an electromagnetic wave absorber used for an electronic device or the like and a technology similar in composition is disclosed. Compared to the present invention, which will be described later, the amount of organic bromide-based flame retardant and zinc-based flame retardant added is extremely large, and does not take into account gas hazards like wall coverings (interior materials). Application to equipment is an undesirable technique. (See Patent Document 8)

本発明の属する防火壁装材料(内装用)の難燃性能は、通常の火災において発火から完全火災(フラッシュオーバー)に至る時間内の初期火災の段階で避難や消化活動に入るまでの時間を得るために延焼を遅延させる難燃性と、避難上有害なガス発生をしないことが要求される。   The fire-retardant performance of the fire wall covering material (for interior use) to which the present invention belongs is the time required to enter evacuation and digestion activities at the initial fire stage within the time from ignition to complete fire (flashover) in a normal fire. In order to obtain it, it is required to have flame retardancy that delays the spread of fire and not to generate gas harmful to evacuation.

評価は、通常、燃焼試験とガス有害性試験で行う。
1)燃焼試験は、実際に使用する構成(例えば石膏ボードに防火壁装材を貼着)で、コーンカロリーメーター法(ISO5660)の燃焼試験にて、要求レベルに応じて一定時間の総発熱量8MJ/m以下、一定時間防火上有害な裏面まで貫通する亀裂及び穴が生じないこと、一定時間最高発熱速度が10秒継続して200KW/mを超えないことを試験する。
2)ガス有害性試験は、実際に使用する構成で燃焼した時に発生するガスが木材の燃焼によって発生するガスの有害性の水準を上回るか否かを、マウスへの暴露試験で判定する。(昭和51年8月25日建設省告示第1231号によるガス有害性試験に準拠)
Evaluation is usually performed by a combustion test and a gas toxicity test.
1) Combustion test is a configuration that is actually used (for example, a fire wall covering is attached to gypsum board), and a total calorific value for a certain period of time according to the required level in the corn calorimeter method (ISO 5660) combustion test. Test that 8MJ / m 2 or less, cracks and holes penetrating to the back side, which are harmful for fire prevention for a certain period of time, and that the maximum heat generation rate does not exceed 200 KW / m 2 for 10 seconds.
2) In the gas toxicity test, it is determined in the mouse exposure test whether the gas generated when combusted in the actual use configuration exceeds the level of gas hazard generated by burning wood. (Compliant with the Gas Hazardous Test by Ministry of Construction Notification No. 1231 on August 25, 1976)

従来の技術には、上記のような防火壁装材に必要な防火性能とガス有害性を考慮した防火磁性壁面材は開示されていない。   The conventional technology does not disclose a fireproof magnetic wall material considering the fireproof performance and gas toxicity necessary for the firewall material as described above.

特公昭49−11171(1頁右欄11行〜2頁左欄15行)JP-B 49-11171 (page 11, right column, line 11 to page 2, left column, line 15) 特開2002−201787号公報(2頁段落0005〜段落0008、図4)JP 2002-201787 A (paragraph 0005 to paragraph 0008, page 2, page 4) 特公平6−76729号公報(2頁左欄8行〜19行)Japanese Examined Patent Publication No. 6-76729 (page 2, left column, lines 8 to 19) 特許第3057426号公報(2頁段落0005)Japanese Patent No. 3057426 (paragraph 0005 on page 2) 特開2002−129726号公報(2頁段落0007及び段落0014〜段落0015)JP 2002-129726 A (paragraph 0007 and paragraphs 0014 to 0015 on page 2) 実公昭63−15902号公報(2頁左欄1行〜26行)Japanese Utility Model Publication No. 63-15902 (page 2, left column, lines 1 to 26) 特開2000−208314号公報(3頁段落0012〜段落0014)JP 2000-208314 A (paragraph 0012 to paragraph 0014, page 3) 特開2000−151177号公報(2頁段落0009及び3頁段落0016〜段落0019)JP 2000-151177 A (page 2 paragraph 0009 and page 3 paragraph 0016 to paragraph 0019)

本発明は、建物の壁面に磁石の吸着力によって、表示材、装飾材、壁装材等を容易に貼着乃至剥離できる磁性壁面材について、防火壁装材料(内装材)としての難燃性及びガス有害性(有害ガス発生の少ない)を付与した防火磁性壁装材及びそれを用いた防火磁性壁を提供しようとするものである。   The present invention relates to a magnetic wall material capable of easily sticking or peeling display materials, decoration materials, wall coverings, etc. to the wall surface of a building by the magnet's adsorption force, and flame retardancy as a fire wall covering material (interior material). In addition, the present invention intends to provide a fireproof magnetic wall covering material imparted with gas toxicity (low generation of harmful gas) and a fireproof magnetic wall using the same.

前記課題を解決するために、防火磁性壁面材に用いる粘結材であるエラストマー、磁性粉体の充填量、難燃化剤の種類と添加量、防火磁性壁面材の厚み、表装材の材質と厚み及び壁下地材について総合的に鋭意研究を行った結果、エラストマーは難燃性が優れ柔軟性と強度を兼ね備えた、磁性材料粉末及び難燃剤粉末(成形加工時の温度において)の高充填性(高濃度に練り込む)に優れたものを用いて、磁性材料粉末を高充填することで、厚みが薄くて磁性の優れたものを得ることによって、単位面積当たりのエラストマー等の有機物(燃焼して発熱する物質)を少量とすることをベースとして、更に特定の2種類の難燃化剤を少量添加することによって、目的の難燃性が得られ、かつ、ガス有害性(有害ガスの発生が少ない)の優れた防火磁性壁面材が得られることを見出した。   In order to solve the above-mentioned problems, an elastomer used as a fireproof magnetic wall material, a filling amount of magnetic powder, a kind and addition amount of a flame retardant, a thickness of a fireproof magnetic wall material, a material of a cover material, As a result of comprehensive research on thickness and wall base materials, elastomers have excellent flame retardancy, and have high flexibility and strength, and high filling of magnetic material powder and flame retardant powder (at the temperature during molding) By using a material that is excellent in (kneading to a high concentration) and highly filling the magnetic material powder, it is possible to obtain an organic material such as elastomer per unit area (combusted) by obtaining a thin and excellent magnetic material. The target flame retardancy is obtained by adding a small amount of two types of specific flame retardants based on the fact that the amount of substances that generate heat) is small. Excellent protection) It was found that the magnetic wall material is obtained.

また、防火磁性壁面材の表装材としては、特定のJISK7201−2に準拠する限界酸素指数(以下、LOIという)以上、特定厚み以下のフィルムを用いることで、難燃性及びガス有害性を殆ど阻害しないこと、及び無機不燃ボードに積層することによって、優れた防火磁性壁を得ることを見出し、この知見に基づいて本発明を完成するに至った。   In addition, as a cover material for the fireproof magnetic wall material, most of the flame retardancy and gas toxicity are achieved by using a film having a specific oxygen thickness (hereinafter referred to as LOI) that is greater than or equal to a specific JISK7201-2. It has been found that an excellent fireproof magnetic wall can be obtained by not hindering and laminating the inorganic incombustible board, and the present invention has been completed based on this finding.

本発明は、(A)塩素化ポリオレフィン系エラストマーである粘結剤100重量部当たり、(B)臭素化芳香族系難燃剤5〜20重量部、(C)亜鉛系難燃剤10〜30重量部、及び(D)強磁性体粉末500〜1400重量部を含有し、かつ、(A)成分と(B)成分と(C)成分と(D)成分との合計量に対する(B)成分と(C)成分と(D)成分との合計量の割合が、容積比で0.73以下である磁性組成物からなる、厚み0.05〜0.6mmの磁性シートであって、不燃石膏ボードに貼着した場合のコーンカロリーメーターによる発熱性試験(ISO5660−1準拠)にて、加熱開始後5分間の総発熱量が8MJ/m以下、200KW/mを超える発熱速度が10秒を越えて継続しない防火性能以上の防火性能を有し、かつ、ガス有害性試験(昭和51年建設省告示1231号準拠)にて、平均マウス行動停止時間の値が6.8分以上であることを特徴とする防火磁性壁面材を内容とする。(請求項1) The present invention includes (B) brominated aromatic flame retardant 5 to 20 parts by weight and (C) zinc flame retardant 10 to 30 parts by weight per 100 parts by weight of the binder (A) chlorinated polyolefin elastomer. And (D) component (B) with respect to the total amount of component (A), component (B), component (C), and component (D), containing 500 to 1400 parts by weight of ferromagnetic powder. A magnetic sheet having a thickness of 0.05 to 0.6 mm, comprising a magnetic composition in which the ratio of the total amount of component (C) and component (D) is 0.73 or less in volume ratio, In the exothermic test (conforming to ISO5660-1) with a cone calorimeter when sticking, the total calorific value for 5 minutes after the start of heating is 8 MJ / m 2 or less, and the heat generation rate exceeding 200 KW / m 2 exceeds 10 seconds. Has a fireproof performance that does not continue One, by gas hazard test (1976 Ministry of Construction Notice 1231 No. compliant), and the contents of the fire magnetic wall material, wherein the value of the average mouse behavior stop time is more than 6.8 minutes. (Claim 1)

好ましい態様としての請求項2は、(A)成分を塩素化ポリエチレンエラストマーとし、(B)成分を2,2−ビス{4−(2,3−ジブロモプロポキシ)−3,5−ジブロモフェニル}プロパンとし、(C)成分を硼酸亜鉛とすることを特徴とする請求項1記載の防火磁性壁面材である。   Claim 2 as a preferred embodiment provides that (A) component is a chlorinated polyethylene elastomer and (B) component is 2,2-bis {4- (2,3-dibromopropoxy) -3,5-dibromophenyl} propane. The fireproof magnetic wall material according to claim 1, wherein the component (C) is zinc borate.

防火磁性壁面材としての請求項3は、前記、防火磁性壁面材の表面に、JISK7201−2に準拠するLOI:28以上で厚み0.15mm以下の非磁性体フィルムを、表装材として一体的に積層したものであって、不燃石膏ボードに貼着した場合のコーンカロリーメーターによる発熱性試験(ISO5660−1準拠)にて、加熱開始後5分間の総発熱量が8MJ/m以下、200KW/mを超える発熱速度が10秒を越えて継続しない防火性能以上の防火性能を有し、かつ、ガス有害性試験(昭和51年建設省告示1231号準拠)にて、平均マウス行動停止時間の値が6.8分以上であることを特徴とする請求項1または2に記載の防火磁性壁面材である。 According to claim 3 as a fireproof magnetic wall material, a nonmagnetic film having a LOI of 28 or more and a thickness of 0.15 mm or less conforming to JISK7201-2 is integrally formed as a cover material on the surface of the fireproof magnetic wall material. In a heat generation test using a cone calorimeter (based on ISO 5660-1) when laminated to a non-combustible gypsum board, the total calorific value for 5 minutes after the start of heating is 8 MJ / m 2 or less, 200 KW / The heat release rate exceeding m 2 does not continue for more than 10 seconds, and has a fire prevention performance higher than the fire prevention performance, and in the gas hazard test (conforms to the Ministry of Construction Notification No. 1231 in 1951), the average mouse action stop time The fireproof magnetic wall material according to claim 1 or 2, wherein the value is 6.8 minutes or more.

防火磁性壁面材としての請求項4は、(D)成分を硬質磁性材料粉末とし、少なくとも片面に多極着磁を施してシート状磁石としたことを特徴とする請求項1〜3のいずれかに記載の防火磁性壁面材である。   4. The fireproof magnetic wall material according to claim 4, wherein the component (D) is a hard magnetic material powder, and at least one surface is subjected to multipolar magnetization to form a sheet-like magnet. The fireproof magnetic wall material described in 1.

防火磁性壁面材としての請求項5は、(D)成分を軟質磁性材料粉末とし、シート状の磁石の被着体となることを特徴とする請求項1〜3のいずれかに記載の防火磁性壁面材である。   Claim 5 as a fireproof magnetic wall material uses (D) component as a soft magnetic material powder, and becomes a to-be-adhered body of a sheet-like magnet, The fireproof magnetism in any one of Claims 1-3 characterized by the above-mentioned. Wall material.

防火磁性壁としての請求項6は、請求項1〜5のいずれかに記載の防火磁性壁面材を、不燃材料(平成12年建設省告示第1400号)乃至準不燃材料(平成12年建設省告示第1401号)よりなる壁下地材に貼着したことを特徴とする防火磁性壁である。   Claim 6 as a fireproof magnetic wall is a fireproof magnetic wall material according to any one of claims 1 to 5 that is made of non-combustible material (Ministry of Construction Notification No. 1400 in 2000) or quasi-incombustible material (Ministry of Construction in 2000). It is a fireproof magnetic wall characterized by being attached to a wall base material made of Notification No. 1401).

防火磁性壁としての請求項7は、請求項4に記載の防火磁性壁面材を用いた請求項6に記載の防火磁性壁の表面に、一部分または全面に請求項5に記載の防火磁性壁面材、あるいは、表装材を積層または塗布した磁性金属ホイルを磁気貼着したことを特徴とする防火磁性壁である。   Claim 7 as a fireproof magnetic wall uses the fireproof magnetic wall material according to claim 4 on the surface of the fireproof magnetic wall according to claim 6, partially or entirely on the surface of the fireproof magnetic wall material according to claim 5. Alternatively, it is a fireproof magnetic wall characterized by magnetically sticking a magnetic metal foil laminated or coated with a cover material.

防火磁性壁としての請求項8は、請求項4に記載の防火磁性壁面材を用いた請求項6に記載の防火磁性壁の表面に、一部分または全面に前記請求項4に記載の防火磁性壁面材と同様に多極着磁を施した防火磁性壁面材を磁気貼着したことを特徴とする防火磁性壁   Claim 8 as the fireproof magnetic wall uses the fireproof magnetic wall material according to claim 4 on the surface of the fireproof magnetic wall according to claim 6, partially or entirely on the surface of the fireproof magnetic wall according to claim 4. Fire-resistant magnetic wall characterized by magnetically sticking fire-resistant magnetic wall material with multi-pole magnetization as well as the material

防火磁性壁としての請求項9は、請求項5に記載の防火磁性壁面材、あるいは、表装材を積層または塗布した磁性金属ホイルを用いた請求項6に記載の防火磁性壁の表面に、一部分または全面に請求項4に記載の防火磁性壁面材を磁気貼着したことを特徴とする防火磁性壁である。   Claim 9 as the fireproof magnetic wall is a part of the surface of the fireproof magnetic wall according to claim 6 using the fireproof magnetic wall material according to claim 5 or a magnetic metal foil laminated or coated with a cover material. Alternatively, a fireproof magnetic wall characterized in that the fireproof magnetic wall material according to claim 4 is magnetically attached to the entire surface.

本発明による防火磁性壁面材は、難燃性が優れ、柔軟性と強度を兼ね備えた塩素化ポリオレフィン系エラストマーを粘結剤に用いて、成形加工時の温度で粉体である難燃剤と強磁性体粉の高充填を可能とし、薄層で充分な磁性を有する磁石シートを得ることをベースに、従来技術に比べ少量の難燃剤の添加、即ち、粘結剤100重量部に対して、臭素化芳香族系難燃剤5〜20重量部と亜鉛系難燃剤10〜30重量部とを併用することによって、建築基準法の防火材料(不燃、準不燃、難燃のいずれかの)認定基準に適合する防火性能とガス有害性に優れた性能を有する。   The fireproof magnetic wall material according to the present invention uses a chlorinated polyolefin-based elastomer having excellent flame retardancy and flexibility and strength as a binder, and a flame retardant that is a powder at a temperature during molding and ferromagnetic Based on the fact that a magnetic sheet having a sufficient magnetic force and a thin layer can be obtained, a small amount of a flame retardant is added as compared with the prior art, that is, bromine with respect to 100 parts by weight of the binder. By using together 5 to 20 parts by weight of aromatic aromatic flame retardant and 10 to 30 parts by weight of zinc-based flame retardant, the fire protection material (any of non-flammable, semi-flammable or flame retardant) certification standards Has excellent fire-proof performance and gas-toxic performance.

本発明による防火磁性壁は、火災発生時に本発明の防火磁性壁面材が難燃性で発熱量が少なく、有害ガスの発生も少ないことと、壁下地材を不燃乃至準不燃にすることで、防火上有害な裏面まで貫通する亀裂や穴を生じないので、避難や救助・消火の活動が容易にできる利点を有する。また、無機質の不燃乃至準不燃ボード使用した場合にあっては、熱伝導率が低いので背面に接する枠材等への延焼を防止する効果があり、鉄系の不燃材料を使用した場合にあっては、防火磁性壁面材が多極着磁を施した永久磁石シートである場合、背面に漏洩する磁束を防止するので、表面側の磁束が増大することにより、強い吸着力が得られる。   The fireproof magnetic wall according to the present invention is such that the fireproof magnetic wall material of the present invention is flame retardant and has a small amount of generated heat, and the generation of harmful gas is small, and the wall base material is made non-combustible or semi-combustible, Since there are no cracks or holes penetrating to the rear side, which is harmful for fire prevention, there is an advantage that evacuation, rescue and fire fighting activities can be easily performed. In addition, when inorganic non-combustible or semi-incombustible boards are used, the thermal conductivity is low, so there is an effect of preventing the spread of fire to the frame material that contacts the back surface. On the other hand, when the fireproof magnetic wall material is a permanent magnet sheet subjected to multipolar magnetization, magnetic flux leaking to the back surface is prevented, so that a strong attracting force can be obtained by increasing the magnetic flux on the surface side.

本発明による防火磁性壁に、本発明の防火磁性壁面材を用いて表示片または表装材等として、磁気吸着力で貼着できるので、着脱が容易で便利である。   Since the fireproof magnetic wall material according to the present invention can be attached to the fireproof magnetic wall as a display piece or a cover material or the like with a magnetic adsorption force, it is easy to attach and detach.

本発明の防火磁性壁面材及び防火磁性壁は、建物の壁だけでなく、天井や床等にも使用できる。また、電波吸収材、電磁波シールド材、遮音材、制振材として用いることもできる。   The fireproof magnetic wall material and fireproof magnetic wall of the present invention can be used not only for building walls but also for ceilings and floors. Moreover, it can also be used as a radio wave absorber, an electromagnetic shielding material, a sound insulating material, and a vibration damping material.

本発明の防火磁性壁面材の成形材料として用いる磁性組成物において、(A)成分の粘結剤としての塩素化ポリオレフィン系エラストマーとしては、塩素化ポリエチレン、クロロスルホン化ポリエチレン等のエラストマーが適し、塩素化率が30〜40重量%が好ましく、30重量%未満では非結晶性が低下してエラストマー性が低下し、40重量%を越えると凝集エネルギーが増大しエラストマー性が低下することにより、粉体の高充填性も低下するので好ましくない。また、3重量%以下のスルホン化したものであっても良い。これらのエラストマーの市販品は、例えば塩素化ポリエチレンエラストマーとしては、昭和電工社製のエラスレン301A、351A、401A、大阪曹達社製のダイソラックC−130、H135が挙げられ、クロロスルホン化ポリエチレンエラストマーとしては、デュポン社製のハイパロン40、45が挙げられる。   In the magnetic composition used as a molding material for the fireproof magnetic wall material of the present invention, as the chlorinated polyolefin elastomer as the binder of the component (A), elastomers such as chlorinated polyethylene and chlorosulfonated polyethylene are suitable. The conversion rate is preferably 30 to 40% by weight. If it is less than 30% by weight, the non-crystallinity is lowered and the elastomer is lowered. If it exceeds 40% by weight, the cohesive energy is increased and the elastomer is lowered. This is not preferable because the high filling property of the resin also decreases. Further, it may be sulfonated by 3% by weight or less. Commercially available products of these elastomers include, for example, Eraslene 301A, 351A, 401A manufactured by Showa Denko KK, Daisolac C-130, H135 manufactured by Osaka Soda Co., Ltd., and chlorosulfonated polyethylene elastomers And Hypalon 40 and 45 manufactured by DuPont.

上記エラストマーは、難燃性が優れ、粉体の高充填性(多量の練り込みができる)に優れ、磁性組成物をシートに成形する際の加工温度において粉体である(B)成分の臭素化芳香族系難燃剤と(C)成分の亜鉛系難燃剤及び(D)成分の強磁性体粉末を高充填した薄肉シートを成形することができるので、薄肉シートであっても、充分な磁性が得られ、また、単位面積当たりのエラストマー等の有機物の量が少なくなることで、燃焼時の燃焼熱が少なくなる。   The elastomer is excellent in flame retardancy, excellent in powder filling (can be kneaded in a large amount), and is a powder of component (B) bromine at the processing temperature when the magnetic composition is formed into a sheet. A thin-walled sheet highly filled with a fluorinated aromatic flame retardant, a (C) component zinc-based flame retardant, and a (D) component ferromagnetic powder can be formed. In addition, since the amount of organic matter such as elastomer per unit area is reduced, the heat of combustion during combustion is reduced.

本発明に用いる磁性組成物においては、難燃剤として(B)成分の臭素化芳香族系難燃剤と(C)成分の亜鉛系難燃剤との組合せが用いられる。上記(B)成分としては、例えばデカブロモジフェニルエーテル、2,2−ビス(3,5−ジブロモ−4−ハイドロオキシフェニール)プロパン、2,2−ビス{4−(2,3−ジブロモプロポキシ)−3,5−ジブロモフェニル}プロパン、2,2−ビス{4−(2,アリルオキシ)3,5−ジブロモフェニル}プロパン等が挙げられるが、これらの中で特に2,2−ビス{4−(2,3−ジブロモプロポキシ)−3,5−ジブロモフェニル}プロパンが好適である。(実施例1〜4)   In the magnetic composition used in the present invention, a combination of a brominated aromatic flame retardant (B) and a zinc flame retardant (C) is used as a flame retardant. Examples of the component (B) include decabromodiphenyl ether, 2,2-bis (3,5-dibromo-4-hydroxyphenyl) propane, 2,2-bis {4- (2,3-dibromopropoxy)- 3,5-dibromophenyl} propane, 2,2-bis {4- (2, allyloxy) 3,5-dibromophenyl} propane and the like, among which 2,2-bis {4- ( 2,3-dibromopropoxy) -3,5-dibromophenyl} propane is preferred. (Examples 1-4)

(C)成分としての亜鉛系難燃剤としては、硼酸亜鉛、ヒドロキシ錫酸亜鉛、錫酸亜鉛等が挙げられるが、これらの中で特に硼酸亜鉛が好適である。(実施例1〜4)   Examples of the zinc-based flame retardant as the component (C) include zinc borate, zinc hydroxystannate, zinc stannate and the like. Among these, zinc borate is particularly preferable. (Examples 1-4)

本発明に用いられる磁性組成物においては、(B)成分の臭素化芳香族系難燃剤と(C)成分の亜鉛系難燃剤を組み合わせて用いることにより、(B)成分は主として燃焼により発生するラジカルの捕獲による燃焼反応の抑制、(C)成分の亜鉛成分が(A)成分の塩素化ポリオレフィンエラストマーの塩素供給源を分解する媒体として作用し、架橋及びチャーの生成を促進する。また、硼酸塩の場合は硼酸塩成分(B)が炭化物表面をガラス成分で覆うことで、更なる炭化物の酸化(アフターブロー)を抑制する。また、結晶水の蒸発水で燃焼温度を下げ、更に多孔質で熱絶縁性の高いチャーを形成することとの相乗効果によって、優れた難燃効果が得られる。 In the magnetic composition used in the present invention, the component (B) is mainly generated by combustion by using a combination of the brominated aromatic flame retardant (B) and the zinc flame retardant (C). Suppression of the combustion reaction due to radical capture, the zinc component (C) acts as a medium for decomposing the chlorine source of the chlorinated polyolefin elastomer (A), and promotes cross-linking and char formation. In the case of a borate, the borate component (B 2 O 3 ) covers the carbide surface with a glass component, thereby suppressing further oxidation (after-blow) of the carbide. In addition, an excellent flame retardant effect is obtained by a synergistic effect of lowering the combustion temperature with evaporating water of crystal water and forming a porous and highly heat-insulating char.

本発明においては、(B)成分の臭素化芳香族系難燃剤は単独で用いても良いし、2種類以上を組み合わせて用いても良く、また、その配合量は、前記(A)成分の粘結剤100重量部に対し、5〜20重量部の範囲で選ばれる。この配合量が5重量部未満では充分な難燃性付与効果が発揮されないし、20重量部を越えるとガス有害性が防火壁装(内装)材として無視できなくなる場合を生じる。   In the present invention, the brominated aromatic flame retardant of component (B) may be used alone or in combination of two or more, and the blending amount thereof is the same as that of component (A). It is selected in the range of 5 to 20 parts by weight with respect to 100 parts by weight of the binder. If the blending amount is less than 5 parts by weight, a sufficient flame retardancy imparting effect is not exhibited, and if it exceeds 20 parts by weight, gas toxicity may not be ignored as a fire wall (interior) material.

(C)成分の亜鉛系難燃剤は、単独で用いても良いし、2種類以上を組み合わせて用いても良く、また、その配合量は、前記(A)成分の粘結剤100重量部に対し、10〜30重量部の範囲で選ばれる。この配合量が10重量部未満では充分な難燃性付与効果が発揮されないし、30重量部を越えると磁性組成物の成形加工性が悪くなる。また、(B)成分と(C)成分との配合比は、(B)<(C)が好ましく、(B)>(C)の場合は(C)成分の配合量が難燃性付与効果を支配する。   The zinc-based flame retardant of component (C) may be used alone or in combination of two or more, and the blending amount thereof is 100 parts by weight of the binder of component (A). On the other hand, it is selected in the range of 10 to 30 parts by weight. When the blending amount is less than 10 parts by weight, sufficient flame retardancy imparting effect is not exhibited, and when it exceeds 30 parts by weight, the moldability of the magnetic composition is deteriorated. Moreover, the blending ratio of the component (B) and the component (C) is preferably (B) <(C). In the case of (B)> (C), the blending amount of the component (C) is the effect of imparting flame retardancy. Rule.

本発明に用いられる磁性組成物においては、(D)成分の強磁性体粉末としては、本発明の分野では、永久磁石材料粉末である硬質磁性材料(保磁力が大)と、磁石の被着体となる軟質磁性材料(高透磁率で保磁力が極小)に大別される。
硬質磁性材料粉末としては、例えば、フェライト系磁石材料粉として、Srフェライト、Baフェライト、希土類系磁石材料粉として、Sm−Co系、Nd−Fe−B系、Sm−Fe−N系等が挙げられ、軟質磁性材料粉としては、例えば、フェライト系軟質磁性材料粉として、Mn−Znフェライト、Ni−Znフェライト、マグネタイト(四三酸化鉄)、鉄系金属軟質磁性材料粉として、鉄粉、カルボニル鉄粉、鉄系合金粉、その他パーマロイ粉、センダスト粉が挙げられ、これら強磁性体粉は平均粒子径が0.3〜500μmの範囲内の粉末で用いられる。
In the magnetic composition used in the present invention, as the ferromagnetic powder of component (D), in the field of the present invention, a hard magnetic material that is a permanent magnet material powder (having a large coercive force), and a magnet deposition Soft magnetic materials (high permeability and minimal coercive force) that form the body.
Examples of the hard magnetic material powder include Sr ferrite, Ba ferrite, and rare earth magnet material powder as ferrite magnet material powder, and Sm—Co, Nd—Fe—B, Sm—Fe—N, and the like. Examples of soft magnetic material powders include, for example, ferrite-based soft magnetic material powders such as Mn-Zn ferrite, Ni-Zn ferrite, magnetite (iron trioxide), iron-based metal soft magnetic material powders, such as iron powder and carbonyl. Examples thereof include iron powder, iron-based alloy powder, other permalloy powder, and sendust powder. These ferromagnetic powders are used as powders having an average particle diameter in the range of 0.3 to 500 μm.

本発明においては、これらの強磁性体粉末は、単独で用いても良く、2種類組み合わせて用いても良い。これらの中で特にフェライト系は、長期的に安定な金属酸化物であり、磁性シートの成形加工性も良く、安価でもあるので実用的に好ましい。また、磁石の被着体として用いるフェライト系の軟質磁性体粉末のみに用いると磁化が不足する場合は、鉄系金属粉を併用することが効果的であり、また、加工性、防錆の点からも好ましい。   In the present invention, these ferromagnetic powders may be used alone or in combination of two kinds. Among these, ferrite is particularly preferable because it is a metal oxide that is stable for a long time, has good moldability of the magnetic sheet, and is inexpensive. Also, if it is used only for ferrite-based soft magnetic powders used as magnet adherends, it is effective to use iron-based metal powders in combination when the magnetism is insufficient. Is also preferable.

強磁性体粉末の充填量は、前記(A)成分の粘結剤100重量部に対して、500から1400重量部の範囲で選ばれる。この充填量が500未満では磁性特性が充分発現しないし、1400重量部を越えると成形加工性が低下し、また、シートの表面性が劣ってくるので好ましくない。好ましい充填量は600〜1300重量部の範囲である。   The filling amount of the ferromagnetic powder is selected in the range of 500 to 1400 parts by weight with respect to 100 parts by weight of the binder (A). When the filling amount is less than 500, the magnetic properties are not sufficiently exhibited, and when it exceeds 1400 parts by weight, the molding processability is deteriorated and the surface property of the sheet is inferior. A preferable filling amount is in the range of 600 to 1300 parts by weight.

本発明に用いられる磁性組成物においては、前記(A)成分と(B)成分と(C)成分と(D)成分との合計量に対する、シートに成形する際の加工温度において粉体である(B)成分と(C)成分と(D)成分との合計量の割合が容積比で0.73以下であることが必要である。この容積比を越えると磁性組成物のシートへの成形加工性が低下し、またシートの表面性が劣ってくるので好ましくない。   The magnetic composition used in the present invention is a powder at the processing temperature when forming into a sheet with respect to the total amount of the component (A), the component (B), the component (C), and the component (D). It is necessary that the ratio of the total amount of the component (B), the component (C), and the component (D) is 0.73 or less in terms of volume ratio. If this volume ratio is exceeded, the molding processability of the magnetic composition into the sheet is lowered, and the surface properties of the sheet are inferior, which is not preferable.

本発明に用いられる磁性シートの厚みにおいては、0.05〜0.6mmの範囲が好ましく、0.05mm未満であると磁気吸着力が不足する場合を生じ、0.6mmを越えると、単位面積当たりの有機物(燃焼して発熱する物質)が多くなり、燃焼時の総発熱量が大きくなるので好ましくない。   In the thickness of the magnetic sheet used in the present invention, a range of 0.05 to 0.6 mm is preferable. If the thickness is less than 0.05 mm, the magnetic attractive force may be insufficient. If the thickness exceeds 0.6 mm, the unit area The number of hit organic substances (substance that generates heat upon combustion) increases, and the total calorific value during combustion increases, which is not preferable.

本発明に用いられる磁性組成物においては、必要に応じて、当該技術分野において行うような各種配合剤(熱安定剤、酸化防止剤、滑剤、可塑剤、カップリング剤等)を必要に応じて適宜添加することができる。熱安定剤としては、金属石鹸系安定剤、有機錫系安定剤、及び安定助剤としてエポキシ化大豆油が挙げられ、中でもBa−Zn系またはCa−Zn系金属石鹸とエポキシ化大豆油の併用、ジオクチル錫系またはブチル錫系安定剤とエポキシ化大豆油の併用が好ましい。酸化防止剤としては、フェノール系酸化防止剤、硫黄系酸化防止剤、燐系酸化防止剤が挙げられ、中でも、硫黄系酸化防止剤のチオエーテル系であるジラウリル−3,3−チオジプロピオネイト、ペンタエリスリトールテトラキス(3−ラウリルチオプロピオネート)等が好ましい。   In the magnetic composition used in the present invention, various compounding agents (thermal stabilizers, antioxidants, lubricants, plasticizers, coupling agents, etc.) as used in the technical field are added as necessary. It can be added as appropriate. Examples of heat stabilizers include metal soap stabilizers, organotin stabilizers, and epoxidized soybean oil as a stabilizer. Among these, Ba-Zn or Ca-Zn metal soaps and epoxidized soybean oil are used in combination. The combined use of a dioctyltin-based or butyltin-based stabilizer and epoxidized soybean oil is preferred. Examples of the antioxidant include phenolic antioxidants, sulfur-based antioxidants, and phosphorus-based antioxidants. Among them, dilauryl-3,3-thiodipropionate, which is a thioether-based sulfur-based antioxidant, Pentaerythritol tetrakis (3-lauryl thiopropionate) and the like are preferable.

滑剤としては、炭化水素系滑剤、脂肪酸系滑剤、高級アルコール系滑剤、脂肪族アマイド系滑剤、金属石鹸系滑剤、エステル系滑剤が挙げられ、中でも、ステアリン酸カルシウム、ステアリン酸、等が好ましい。可塑剤としては、塩素化パラフィン系、燐酸エステル系が挙げられ、中でも、70%塩素化パラフィン、トリクレジルホスフェート等が好ましい。カップリング系としては、チタネート系カップリング剤、シラン系カップリング剤が挙げられ、中でも、チタネート系カップリング剤・味の素ファインテクノ社製KRTTS,KR38S等が好ましい。   Examples of the lubricant include hydrocarbon lubricants, fatty acid lubricants, higher alcohol lubricants, aliphatic amide lubricants, metal soap lubricants, ester lubricants, among which calcium stearate, stearic acid, and the like are preferable. Examples of the plasticizer include chlorinated paraffins and phosphate esters. Among them, 70% chlorinated paraffin, tricresyl phosphate and the like are preferable. Examples of coupling systems include titanate coupling agents and silane coupling agents. Among these, titanate coupling agents and KRTTS, KR38S manufactured by Ajinomoto Fine Techno Co., etc. are preferable.

[防火磁性壁面材]
本発明の防火磁性壁面材である磁性シートの成形は、前記(A)成分、(B)成分、(C)成分、(D)成分、更に必要に応じて用いる添加成分を、それぞれ所定の割合で混練後、圧延成形、押出成形、押出・圧延成形等によって0.05〜0.6mm厚に成形する。混練及び各成形方法は、従来公知のマグネットシートの成形と同様にして成形することができる。例えば混練は、加圧ニーダー、二軸混練押出機、ミキシングロール等が挙げられ、例えばシート成形は、2本ロールによる1段または2段圧延方式、フィシュテールダイを用いた押出成形、又は及び、押出後2本ロールによる圧延方式等が挙げられる。
[Fireproof magnetic wall material]
The molding of the magnetic sheet which is the fireproof magnetic wall material of the present invention is carried out by using the above-mentioned component (A), component (B), component (C), component (D), and additional components used as necessary, in a predetermined ratio. After kneading, the film is formed to a thickness of 0.05 to 0.6 mm by rolling, extrusion, extrusion / rolling, or the like. The kneading and forming methods can be formed in the same manner as conventionally known magnet sheet forming. For example, the kneading includes a pressure kneader, a twin-screw kneading extruder, a mixing roll, and the like. For example, the sheet molding is a one-stage or two-stage rolling method using two rolls, an extrusion molding using a fishtail die, and / or A rolling method using two rolls after extrusion can be used.

(D)成分を硬質磁性材料粉末永久磁石材料粉とした磁性シートは、従来公知の着磁方法によって、片面または両面に多極着磁を施し、永久磁石シートを作製することができる。例えば、ワンターン着磁ヨークを磁性シートの表面に密着させて着磁電源(高圧大容量コンデンサー)よりパルス直流電流を通電することで着磁する方法、または、永久磁石を用いた多極磁石ロールを磁性シートの表面に密着回転させて着磁する方法が挙げられ、後者は極薄磁性シートの着磁に適する。   The magnetic sheet in which the component (D) is a hard magnetic material powder permanent magnet material powder can be subjected to multipolar magnetization on one side or both sides by a conventionally known magnetization method to produce a permanent magnet sheet. For example, a one-turn magnetized yoke is brought into close contact with the surface of a magnetic sheet and magnetized by applying a pulsed direct current from a magnetized power source (high-voltage, large-capacity capacitor), or a multipolar magnet roll using a permanent magnet There is a method in which the surface of the magnetic sheet is magnetized by rotating in close contact with the surface of the magnetic sheet, and the latter is suitable for magnetizing an ultrathin magnetic sheet.

本発明の磁性シートに表装材を積層した防火磁性壁面材は、前期磁性シートの表面に、LOI:28以上、厚み0.15mm以下の非磁性体フィルムを、公知のマグネットシートとプラスチックフィルムを積層する方法である熱圧着、または、接着剤を用いて積層することで得られる。   The fireproof magnetic wall material in which the surface material is laminated on the magnetic sheet of the present invention is a laminate of a non-magnetic film having a LOI of 28 or more and a thickness of 0.15 mm or less, a known magnet sheet and a plastic film on the surface of the previous magnetic sheet. It is obtained by laminating using a thermocompression bonding method or an adhesive.

難燃継続性を評価する方法の一つに酸素指数による燃焼性試験(JISK7201−2)があり、継続燃焼に必要な雰囲気中の酸素の限度濃度(限界酸素指数:LOI)を測定する。
一般に、LOIが21以上であれば継続的に燃焼することは無く、LOIが25〜27以上であれば極端な条件でない限り継続的に燃焼しないと云われる。
One of the methods for evaluating the flame retardant continuity is a flammability test (JISK7201-2) using an oxygen index, which measures the limit oxygen concentration (limit oxygen index: LOI) in the atmosphere necessary for continuous combustion.
Generally, if the LOI is 21 or more, it will not burn continuously, and if the LOI is 25 to 27 or more, it is said that it will not burn continuously unless it is an extreme condition.

本発明の防火磁性壁面材に用いる非磁性体フィルムは、LOI:26以上のものが用いられるが、好ましくはLOI:28以上のものが良く、LOI:28以下であると所期の防火性能が得られなくなる場合を生じる。また、厚みは0.15mm以下であるのが好ましく、0.15mmを越えると燃焼熱量が大きくなり総発熱量への影響が大きくなるので好ましくない。
LOI:28以上の非磁性体フィルムとしては、可塑剤15PHR以下含有の塩化ビニルフィルム及び難燃剤を含有する難燃性プラスチックフィルム、難燃剤を含有する難燃紙、水酸化アルミニウム紙、金属ホイル等が挙げられ、その中でも可塑剤10PHR以下含有の塩化ビニルフィルムが好ましい。
The non-magnetic film used for the fireproof magnetic wall material of the present invention is LOI: 26 or more, preferably LOI: 28 or more, and LOI: 28 or less has the desired fireproof performance. In some cases, it cannot be obtained. Further, the thickness is preferably 0.15 mm or less, and if it exceeds 0.15 mm, the amount of combustion heat is increased and the influence on the total heat generation amount is increased, which is not preferable.
LOI: 28 or more non-magnetic films include vinyl chloride film containing plasticizer 15 PHR or less and flame retardant plastic film containing flame retardant, flame retardant paper containing flame retardant, aluminum hydroxide paper, metal foil, etc. Among them, a vinyl chloride film containing a plasticizer of 10 PHR or less is preferable.

積層に用いる接着剤としては、公知のアクリル系接着剤、酢酸ビニル系接着剤、エチレン・酢酸ビニル共重合体系接着剤、ウレタン・アクリル共重合体接着剤、変性シリコーン系接着剤等、及びホットメルト系接着剤としては、エチレン・酢酸ビニル系ホットメルト接着剤、ポリエステル系ホットメルト接着剤、ポリアミド系ホットメルト接着剤等が挙げられる。また、粘着剤としては、公知のアクリル系粘着剤、変性シリコーン系粘着剤等が挙げられる。   Adhesives used for lamination include known acrylic adhesives, vinyl acetate adhesives, ethylene / vinyl acetate copolymer adhesives, urethane / acrylic copolymer adhesives, modified silicone adhesives, and hot melts. Examples of the system adhesive include an ethylene / vinyl acetate system hot melt adhesive, a polyester system hot melt adhesive, and a polyamide system hot melt adhesive. Moreover, as an adhesive, a well-known acrylic adhesive, a modified silicone adhesive, etc. are mentioned.

接着剤または粘着剤層の厚みは、燃焼時の総発熱量への影響を考慮して、50μm以下にするのが好ましい。また、難燃剤を添加した接着剤または粘着剤を用いることで、難燃性を向上させることもできる。   The thickness of the adhesive or pressure-sensitive adhesive layer is preferably 50 μm or less in consideration of the influence on the total calorific value during combustion. Moreover, a flame retardance can also be improved by using the adhesive agent or adhesive which added the flame retardant.

[防火磁性壁]
本発明の防火磁性壁の作製方法は、壁下地材として不燃材料乃至準不燃材料に本発明の防火磁性壁面材を接着剤または粘着剤を用いて貼着することで達成される。この場合の接着剤または粘着剤の種類と層の厚みは、前記の磁気シートと表装材との積層の場合と同様で良い。
[Fireproof magnetic wall]
The method for producing a fireproof magnetic wall of the present invention is achieved by sticking the fireproof magnetic wall material of the present invention to an incombustible material or a semi-incombustible material as a wall base material using an adhesive or an adhesive. In this case, the kind of the adhesive or pressure-sensitive adhesive and the thickness of the layer may be the same as those in the case where the magnetic sheet and the covering material are laminated.

本発明の防火磁性壁に用いる不燃材料または準不燃材料は、国土交通大臣が定めたものであって、不燃材料は建設省告示1400号(平成12年5月30日)に定められた建築材料、例えば、石膏ボード(厚さ12mm以上、かつ、ボード用原紙の厚さ0.6mm以下)、ガラス繊維混入セメント板(厚さ3mm以上)、繊維強化セメント板、ガラス、コンクリート、モルタル、鉄鋼、アルミニウム、金属板等が挙げられ、準不燃材料は建設省告示1401号(平成12年5月30日)に定められた建築材料、例えば、上記の不燃材料で当規定に該当するもの、石膏ボード(厚さ9mm以上、かつ、ボード用原紙の厚さ0.6mm以下)、硬質木片セメント板(厚さ9mm以上で、かさ比重0.9以上)、パルプセメント板(厚さ6mm以上)等が挙げられる。   The incombustible material or quasi-incombustible material used for the fireproof magnetic wall of the present invention is determined by the Minister of Land, Infrastructure, Transport and Tourism, and the incombustible material is a building material specified in the Ministry of Construction Notification No. 1400 (May 30, 2000). , For example, gypsum board (thickness 12 mm or more, and board base paper thickness 0.6 mm or less), glass fiber mixed cement board (thickness 3 mm or more), fiber reinforced cement board, glass, concrete, mortar, steel, Aluminum, metal plates, etc. are listed. Quasi-incombustible materials are building materials specified in Ministry of Construction Notification No. 1401 (May 30, 2000), such as the above incombustible materials that fall under this rule, gypsum board (Thickness 9 mm or more and board base paper thickness 0.6 mm or less), hard wood cement board (thickness 9 mm or more, bulk specific gravity 0.9 or more), pulp cement board (thickness 6 mm or more) Etc. The.

本発明の防火磁性壁に用いる不燃材料または準不燃材料は、ボード等の単体であっても、建物に組み込まれた状態であっても、一般の壁装材と同様に積層することができる。   The non-combustible material or quasi-incombustible material used for the fireproof magnetic wall of the present invention can be laminated in the same manner as a general wall covering, whether it is a single body such as a board or a state where it is incorporated in a building.

本発明の防火磁性壁とすることによって、火災発生に際して本発明の防火磁性壁面材が、難燃性で発熱量が少なく、また、有害ガスの発生も少なく、壁下地材が不燃材料または準不燃材料であることから、防火上有害な裏面まで貫通する亀裂及び穴を生じないので、避難や救助・消化活動が容易にできる防火上の効果が得られる。また、無機質の不燃乃至準不燃材料にあっては、熱伝導率が低いので、壁下地材の背面に接する枠材等への延焼を防止する効果があり、鉄系の不燃材料にあっては、防火磁性壁面材が多極着磁を施した永久磁石である場合、背面に漏洩する磁束を防止するので、表面側の磁束を増大する効果がある。例えば、永久磁石シートの厚み0.3mm、極間2.5mmピッチにおいて、永久磁石シートの表面密着吸着力は、壁下地材が非磁性体の場合21g/cmに対して、鉄板の場合は56g/cmとなる効果がある。 By using the fireproof magnetic wall of the present invention, the fireproof magnetic wall material of the present invention is incombustible and has a small amount of heat generated in the event of a fire. Since it is a material, cracks and holes penetrating to the rear side, which are harmful to fire prevention, are not generated, so that a fire prevention effect that facilitates evacuation, rescue and digestion activities can be obtained. In addition, in the case of inorganic non-combustible or quasi-incombustible materials, the thermal conductivity is low, so there is an effect of preventing the spread of fire to the frame material in contact with the back of the wall base material. When the fireproof magnetic wall material is a permanent magnet subjected to multipolar magnetization, magnetic flux leaking to the back surface is prevented, so that there is an effect of increasing the magnetic flux on the surface side. For example, when the permanent magnet sheet has a thickness of 0.3 mm and a pitch of 2.5 mm between the surfaces, the surface adhesion adsorption force of the permanent magnet sheet is 21 g / cm 2 when the wall base material is a non-magnetic material, whereas in the case of an iron plate. There is an effect of becoming 56 g / cm 2 .

[実施例]
以下、本発明を実施例により、更に詳細に説明するが、本発明はこのような実施例のみに限定されるものではない。
[磁性シート(防火磁性壁面材)の成形(実施例1〜7、比較例1〜7)]
表1に示す、実施例1〜4、比較例1〜5の配合表(重量部)によって、各成分を加圧ニーダーで100〜120°C×15分間混練して、磁性組成物を調整する。次に、この磁性組成物をロールの表面温度90°Cの2本ロール式圧延機(直径10''・面長30''ロール)を用いて、表1と表2に示す厚みで500mm幅の磁性シートを作成し巻物とする。
[Example]
EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not limited only to such an Example.
[Molding of Magnetic Sheet (Fireproof Magnetic Wall Material) (Examples 1-7, Comparative Examples 1-7)]
According to the formulation tables (parts by weight) of Examples 1 to 4 and Comparative Examples 1 to 5 shown in Table 1, each component is kneaded with a pressure kneader at 100 to 120 ° C. for 15 minutes to prepare a magnetic composition. . Next, this magnetic composition was 500 mm wide in the thicknesses shown in Tables 1 and 2 using a two-roll type rolling mill (diameter 10 ″, surface length 30 ″ roll) having a roll surface temperature of 90 ° C. This magnetic sheet is made into a scroll.

なお、表1中で必要に応じて添加する成分としては、実施例1〜4、比較例1〜3については、ステアリン酸カルシウム(滑剤として)、チオエーテル系酸化防止剤である。
また、この状態を断面で表わすと図3のようになる。但し、実施例1〜3及び比較例1〜3は、後述するように表面に着磁を施すため、最終状態としての図3は、実施例4及び比較例4、比較例5を表わし、B1はこれらの実施例及び比較例における防火磁性壁面材を示す。
In addition, as a component added as needed in Table 1, about Examples 1-4 and Comparative Examples 1-3, they are calcium stearate (as a lubricant) and a thioether type | system | group antioxidant.
Further, this state is represented by a cross section as shown in FIG. However, since Examples 1 to 3 and Comparative Examples 1 to 3 magnetize the surface as described later, FIG. 3 as a final state represents Example 4, Comparative Example 4, and Comparative Example 5, and B1 Shows fireproof magnetic wall materials in these Examples and Comparative Examples.

Figure 2005290707
Figure 2005290707

実施例(1〜4)、比較例(1〜5)に使用した、各種成分は次の通りである。
(1)塩素化ポリエチレンエラストマー:昭和電工社製・商品名エラスレン351A・塩
素化率35W%・比重1.16
(2)クロロプレンゴム:電気化学工業社製・商品名デンカクロロプレンEM−40・塩素含有率40W%・比重1.22
(3)エチレンアクリレート共重合体:アメリカンサイアナミド社製・商品名サイナアク
リルR・比重1.1
(4)エチレンメタアクリレート共重合体:デュポン社製・商品名ベイマックG・比重
1.03
(5)エポキシ大豆油:大日本インキ化学工業社製・商品名W−100EL
(6)ステアリン酸カルシウム:堺化学工業社製・商品名CS−100
(7)チオエーテル系酸化防止剤:旭電化工業社製・商品名アデカA0−23
(8)アミン系酸化防止剤:川口化学工業社製・商品名アンテージ6C
(9)ステアリン酸:花王社製・商品名ルナック40
(10)臭素化芳香族難燃剤:東ソー社製・商品名フレームカット121K・組成2,2−
ビス{4−(2,3−ジブロモプロポキシ)−3,5−ジブロモフェニル}プロパン・比重2.2
(11)ヘキサブロモベンゼン:マナック社製・商品名HBB−S・比重2.9
(12)硼酸亜鉛:水沢化学社製・商品名アルカネックスFRC−500・比重2.66・
組成2ZnO・3B・3.5H
(13)三酸化アンチモン:味の素ファインテクノ社製・商品名ポリセーフ100ND・比重5.2
(14)赤燐:日本化学工業社製・商品名ヒシガードTP−10F・平均粒子径5μm・比重2.2
(15)水酸化アルミニウム:日本軽金属社製・商品名B703・平均粒子径2μm・比重2.42
(16)水酸化マグネシウム:協和化学工業社製・商品名キスマ5B・平均粒子径0.8μm・比重2.36
(17)Srフェライト:日本弁柄社製・商品名NF−56(異方性機械配向型)・平均粒子径1.05μm・ 比重5.1
(18)Mn−Znフェライト:戸田工業社製・商品名BSF−547・平均粒子径3.2μm・比重5.1
(19)マグネタイト:チタン工業社製・商品名BL−100・平均粒子径3μm・比重5.1
(20)還元鉄粉:パウダーテック社製・商品名還元鉄粉・平均粒子径30μm・比重7.86
(21)カルボニル鉄粉:BASF社製・商品名カルボニル鉄EW・平均粒子径4μm・比重 7.86
Various components used in Examples (1-4) and Comparative Examples (1-5) are as follows.
(1) Chlorinated polyethylene elastomer: Showa Denko Co., Ltd., trade name: Eraslen 351A, chlorination rate 35W%, specific gravity 1.16
(2) Chloroprene rubber: manufactured by Denki Kagaku Kogyo Co., Ltd., trade name: Denka Chloroprene EM-40, chlorine content: 40 W%, specific gravity: 1.22
(3) Ethylene acrylate copolymer: American Cyanamid Co., Ltd.
(4) Ethylene methacrylate copolymer: manufactured by DuPont, trade name Baymac G, specific gravity
1.03
(5) Epoxy soybean oil: manufactured by Dainippon Ink & Chemicals, Inc., trade name W-100EL
(6) Calcium stearate: Sakai Chemical Industry Co., Ltd., trade name CS-100
(7) Thioether-based antioxidant: manufactured by Asahi Denka Kogyo Co., Ltd., trade name Adeka A0-23
(8) Amine-based antioxidant: manufactured by Kawaguchi Chemical Industry Co., Ltd., trade name Antage 6C
(9) Stearic acid: Kao's product name LUNAC 40
(10) Brominated aromatic flame retardant: manufactured by Tosoh Corporation, trade name: frame cut 121K, composition 2,2-
Bis {4- (2,3-dibromopropoxy) -3,5-dibromophenyl} propane, specific gravity 2.2
(11) Hexabromobenzene: Manac Co., Ltd., trade name HBB-S, specific gravity 2.9
(12) Zinc borate: Made by Mizusawa Chemical Co., Ltd., trade name Alkanex FRC-500, specific gravity 2.66,
Composition 2ZnO · 3B 2 O 3 · 3.5H 2 O
(13) Antimony trioxide: Ajinomoto Fine Techno Co., Ltd., trade name: Polysafe 100ND, specific gravity 5.2
(14) Red phosphorus: manufactured by Nippon Kagaku Kogyo Co., Ltd., trade name Hishiguard TP-10F, average particle size 5 μm, specific gravity 2.2
(15) Aluminum hydroxide: manufactured by Nippon Light Metal Co., Ltd., trade name B703, average particle size 2 μm, specific gravity 2.42
(16) Magnesium hydroxide: manufactured by Kyowa Chemical Industry Co., Ltd., trade name Kisuma 5B, average particle size 0.8 μm, specific gravity 2.36
(17) Sr ferrite: manufactured by Nippon Valve Co., Ltd., trade name: NF-56 (anisotropic mechanical orientation type), average particle size: 1.05 μm, specific gravity: 5.1
(18) Mn-Zn ferrite: manufactured by Toda Kogyo Co., Ltd., trade name BSF-547, average particle diameter 3.2 μm, specific gravity 5.1
(19) Magnetite: manufactured by Titanium Industry Co., Ltd., trade name BL-100, average particle diameter 3 μm, specific gravity 5.1
(20) Reduced iron powder: manufactured by Powdertech, trade name Reduced iron powder, average particle size 30 μm, specific gravity 7.86
(21) Carbonyl iron powder: manufactured by BASF, trade name: Carbonyl iron EW, average particle diameter 4 μm, specific gravity 7.86

[加工性の評価]
前記磁性シートを成形する際の加工性(厚み0.4mmにおける)を下記の判断基準に従って評価し、結果を表1に示す。
○:磁性シートの表面が平滑で、幅方向及び流れ方向の厚み差が少ない。
(厚みのバラツキ±10%以下)
△:圧延機の負荷が大きく、磁性シートの幅方向の厚み差が大(中央部が厚く、両端が
薄い)巻物を巻くほどフレヤー(波打ち)を生じる。
×:圧延機の負荷が極めて大きく、磁性シートの両端にクラックを生じ、500mm幅
の磁性シートの成形が困難。
[Evaluation of workability]
The workability (at a thickness of 0.4 mm) when forming the magnetic sheet was evaluated according to the following criteria, and the results are shown in Table 1.
○: The surface of the magnetic sheet is smooth, and the thickness difference between the width direction and the flow direction is small.
(Thickness variation ± 10% or less)
Δ: The load on the rolling mill is large, and the thickness difference in the width direction of the magnetic sheet is large (the central part is thick and the both ends are thin).
X: The load on the rolling mill is extremely large, cracks are generated at both ends of the magnetic sheet, and it is difficult to form a magnetic sheet having a width of 500 mm.

[着磁加工(実施例1〜3、比較例1〜3)]
前記、磁性シートのうち、実施例1〜3、比較例1〜3は、(D)成分を硬質磁性材料粉(永久磁石材料粉)としたもので、永久磁石として用いるために片面多極着磁を施す必要がある。
磁性シートの片面を、幅600mm長さ300mmの2.5mmピッチ多極着磁ヨーク(ワンターン)に、コンデンサー式着磁電源より、2000Aのパルス電流を流して着磁し、順次磁性シートを300mm移動させては同様に着磁する。
なお、図1はこれらの実施例1〜3、比較例1〜3の断面図を表わし、A1はそれらの実施例及び比較例における防火磁性壁面材を示す。
[Magnetization (Examples 1-3, Comparative Examples 1-3)]
Among the magnetic sheets, Examples 1 to 3 and Comparative Examples 1 to 3 are those in which the component (D) is a hard magnetic material powder (permanent magnet material powder) and is used as a permanent magnet. It is necessary to apply magnetism.
One side of a magnetic sheet is magnetized by passing a pulse current of 2000 A from a condenser magnetizing power source to a 2.5 mm pitch multi-pole magnetized yoke (one turn) having a width of 600 mm and a length of 300 mm, and sequentially moving the magnetic sheet by 300 mm Let it be magnetized in the same way.
In addition, FIG. 1 represents sectional drawing of these Examples 1-3 and Comparative Examples 1-3, and A1 shows the fireproof magnetic wall material in those Examples and a comparative example.

[表装材を積層した磁性シート(防火磁性壁面材)の作製(実施例5〜7、比較例6〜7)]
表装材を積層した磁性シートの構成を表2に示す。
[表装材]
・無可塑剤塩化ビニルフィルム(LOI:35)シーアイ化成社製
・半硬質塩化ビニルフィルム(可塑剤10PHR含有、LOI:30)理研ビニル社製
・水酸化アルミニウム紙を基材とした壁紙(LOI:33、市販品)
[積層]
アクリル系粘着フィルム(厚み30μm、寺岡製作所社製)を用いてラミネーターにて積層する。
図2は、実施例5及び7並びに比較例6〜7の断面図であり、1は表装材、A2は表装材を積層した防火磁性壁面材を示す。なお、A1は実施例2の組成で表に示す厚みの防火磁性壁を使用する。
また、図4は実施例6の断面図であり、1は表装材、B2は表装材を積層した防火磁性壁面材を示す。なお、B1は実施例4の組成で厚み0.3mmの防火磁性壁面材を使用する。
[Production of Magnetic Sheet (Fireproof Magnetic Wall Material) Laminated with Surface Materials (Examples 5 to 7, Comparative Examples 6 to 7)]
Table 2 shows the structure of the magnetic sheet in which the facing materials are laminated.
[Surface material]
・ Non-plasticizer vinyl chloride film (LOI: 35) manufactured by CI Kasei Co., Ltd. ・ Semi-rigid vinyl chloride film (containing plasticizer 10PHR, LOI: 30) manufactured by Riken Vinyl Co., Ltd. ・ Wallpaper based on aluminum hydroxide paper (LOI: 33, commercial product)
[Lamination]
Lamination is performed using an acrylic adhesive film (thickness 30 μm, manufactured by Teraoka Seisakusho).
FIG. 2 is a cross-sectional view of Examples 5 and 7 and Comparative Examples 6 to 7, wherein 1 is a cover material, and A2 is a fireproof magnetic wall material in which the cover materials are laminated. In addition, A1 uses the fire prevention magnetic wall of the thickness shown to a table | surface by the composition of Example 2. FIG.
FIG. 4 is a cross-sectional view of Example 6. Reference numeral 1 denotes a cover material, and B2 denotes a fireproof magnetic wall material in which the cover materials are laminated. In addition, B1 uses the fireproof magnetic wall material of the composition of Example 4 and a thickness of 0.3 mm.

Figure 2005290707
Figure 2005290707

[防火磁性壁の作製(実施例8〜11)]
防火磁性壁の構成を表3に示す。
[壁下地材への防火磁性壁面材の積層]
防火磁性壁面材の裏側に、アクリル系粘着フィルム(厚み30μm、寺岡製作所社製)を、ラミネーターを用いて貼り合わせる。
次に該粘着層付き防火磁性壁面材の巻物を、巻きほどきながら壁下地材へ積層する。
なお、図5は実施例8の断面図であり、C1は本実施例の防火磁性壁、2は壁下地材、3は壁下地材としての不燃石膏ボード、A1は実施例2の防火磁性壁面材を示す。
また、図6は実施例9の断面図であり、C2は本実施例の防火磁性壁、3は壁下地材である不燃石膏ボード、A2は実施例7の(表装材を積層した)防火磁性壁面材を示す。
また、図7は実施例10の断面図であり、C3は本実施例の防火磁性壁、4は壁下地材である亜鉛メッキ鋼板(0.27mm)、A2は実施例5の(表装材を積層した)防火磁性壁面材を示す。
また、図8は実施例11の断面図であり、Dは本実施例の防火磁性壁、3は壁下地材である不燃石膏ボード、B2は実施例6の(表装材を積層した)防火磁性壁面材を示す。
[Preparation of Fireproof Magnetic Wall (Examples 8 to 11)]
Table 3 shows the construction of the fireproof magnetic wall.
[Lamination of fireproof magnetic wall material on wall base material]
An acrylic adhesive film (thickness 30 μm, manufactured by Teraoka Seisakusho) is bonded to the back side of the fireproof magnetic wall material using a laminator.
Next, the roll of the fireproof magnetic wall material with the adhesive layer is laminated on the wall base material while being unwound.
5 is a cross-sectional view of Example 8, C1 is a fireproof magnetic wall of this example, 2 is a wall base material, 3 is a non-combustible gypsum board as a wall base material, and A1 is a fireproof magnetic wall surface of Example 2. Indicates the material.
FIG. 6 is a cross-sectional view of Example 9, C2 is a fireproof magnetic wall of this example, 3 is a non-combustible gypsum board that is a wall base material, and A2 is a fireproof magnetism of Example 7 (laminated with a cover material). Wall material is shown.
FIG. 7 is a cross-sectional view of Example 10. C3 is a fireproof magnetic wall of this example, 4 is a galvanized steel plate (0.27 mm) as a wall base material, and A2 is of Example 5 The laminated fireproof magnetic wall material is shown.
8 is a cross-sectional view of Example 11, D is a fireproof magnetic wall of the present example, 3 is a non-combustible gypsum board as a wall base material, and B2 is a fireproof magnetism of Example 6 (layered with a cover material). Wall material is shown.

Figure 2005290707
Figure 2005290707

[防火性能とガス有害性の評価]
前記、防火磁性壁面材(実施例1〜4、比較例1〜5)と表装材を積層した防火磁性壁面材(実施例5〜7、比較例6〜7)、及び防火磁性壁(実施例8〜11)について、下記の試験方法及び判定基準で評価し、結果を表1と表2及び表3に示す。
[Evaluation of fire prevention performance and gas toxicity]
The fireproof magnetic wall material (Examples 5 to 7, Comparative Examples 6 to 7) obtained by laminating the fireproof magnetic wall material (Examples 1 to 4 and Comparative Examples 1 to 5) and the cover material, and the fireproof magnetic wall (Examples) 8 to 11) were evaluated by the following test methods and criteria, and the results are shown in Table 1, Table 2 and Table 3.

「発熱性試験及び判定基準」
(1)防火磁性壁面材について
防火磁性壁面材を、不燃石膏ボードにアクリル系粘着フィルム(30μm厚)を用いて積層したテストピースを作製し、コーンカロリーメーター法(ISO5660)の燃焼試験にて、所要時間(建築基準法第2条第9号、同施行令108条の2、同施行令第1条第5号、同施行令第1条第6号で定める不燃、準不燃、難燃に要求される下記の時間)後の総発熱量が8MJ/m以下で、防火上有害な裏面まで貫通する亀裂及び穴がないこと、及び最高発熱速度が10秒以上継続して200KW/mをこえないこと。
なお、材料の防火性能に要求される時間は次の通りであり、試験結果には対応する評価の表示を行う。但し、下記難燃材料の要求時間に満たないものは、×の表示とする。
・不燃材料 :要求時間20分、(評価の表示:不燃)
・準不燃材料:要求時間10分、(評価の表示:準不)
・難燃材料 :要求時間 5分、(評価の表示:難燃)
(2)防火磁性壁について
防火磁性壁と同じ構成のテストピースを作製し、(1)と同様にコーンカロリーメーター法の燃焼試験にて評価する。
“Exothermic test and criteria”
(1) About the fireproof magnetic wall material A fireproof magnetic wall material was produced by laminating a nonflammable gypsum board using an acrylic adhesive film (thickness 30 μm), and in a corn calorimeter method (ISO5660) combustion test, Time required (in accordance with Article 2, Item 9 of the Building Standards Act, Article 108-2 of the Enforcement Ordinance, Article 1, Item 5, Enforcement Ordinance, Article 1, Item 6 of the Enforcement Ordinance) The total calorific value after the following required time) is 8 MJ / m 2 or less, there are no cracks and holes penetrating to the rear side, which is harmful to fire prevention, and the maximum heat generation rate continues for 200 seconds or more and is 200 KW / m 2. Do not exceed.
The time required for the fireproof performance of the material is as follows, and the corresponding evaluation is displayed on the test result. However, those that do not meet the required time for the following flame retardant materials shall be indicated by x.
・ Non-combustible material: Required time 20 minutes (Evaluation display: Non-combustible)
・ Semi-incombustible material: Required time 10 minutes (Evaluation display: Semi-incomparable)
・ Flame retardant material: Required time 5 minutes (Indication of evaluation: flame retardant)
(2) About a fireproof magnetic wall The test piece of the same structure as a fireproof magnetic wall is produced, and it evaluates by the combustion test of a cone calorimeter method similarly to (1).

[ガス有害性試験]
昭和51年8月25日建設省告示第1231号によるガス有害試験方法に準じた試験を行い、平均マウス行動停止時間値が6.8分以上を合格とする。なお、試験結果には、合格を○、不合格を×と表示する。
[Gas Hazard Test]
Tested in accordance with the Gas Hazardous Test Method No. 1231 of the Ministry of Construction Notification No. 1231 on August 25, 1976, and an average mouse action stop time value of 6.8 minutes or more is passed. In the test results, “OK” is indicated as “PASS”, and “X” is indicated as “FAIL”.

以上の結果から判るように、各実施例の防火磁性壁面材(表1、表2)及び防火磁性壁(表3)は、建築基準法に定める防火材料(不燃、準不燃、難燃)認定基準のいずれかに適合すると思われる、優れた防火性能を有する。また、本発明の範囲を逸脱した比較例は、加工性、防火性能、ガス有害性のいずれかが劣る結果を呈する。
なお、比較例4は、電子機器分野の電磁波吸収体の技術であり、比較例5は電子機器分野の電磁波シールド及び磁石シートの技術であり、建築壁装材(内装材)分野の使用は好ましくない結果を呈する。
As can be seen from the above results, the fireproof magnetic wall materials (Tables 1 and 2) and fireproof magnetic walls (Table 3) of each example are certified as fireproof materials (incombustible, semi-incombustible, and flame retardant) as stipulated in the Building Standards Act. Excellent fire protection performance that seems to meet any of the standards. Moreover, the comparative example which deviated from the range of this invention exhibits the result in which any of workability, fire prevention performance, or gas toxicity is inferior.
Comparative Example 4 is an electromagnetic wave absorber technology in the field of electronic equipment, and Comparative Example 5 is an electromagnetic wave shield and magnet sheet technology in the electronic equipment field, which is preferably used in the field of architectural wall coverings (interior materials). Give no results.

[防火磁性壁の使用例(実施例12〜15)]
防火磁性壁の使用例の構成を表4に示す。
本発明の防火磁性壁には、表面に一時的(着脱自由)に、一部分または全面に防火磁性壁面材を用いた表示片、装飾片、表装材として磁気吸着によって貼着することができる。
[Usage example of fireproof magnetic wall (Examples 12 to 15)]
Table 4 shows the configuration of the use example of the fireproof magnetic wall.
The fireproof magnetic wall of the present invention can be adhered to the surface temporarily (freely attachable / detachable) by magnetic adsorption as a display piece, a decorative piece, or a cover material using a fireproof magnetic wall material partially or entirely.

Figure 2005290707
Figure 2005290707

[実施例12]
図9に示すように、実施例8からなる防火磁性壁(表面が磁石シート)C1の表面に、実施例6からなる防火磁性壁面材(表面に表層材を積層した磁石の被着体)で作製された表示片E2を全面に磁気吸着したものであり、その後、別の図柄のものと取り替えることが容易にできる。
[実施例13]
図10に示すように、実施例9からなる防火磁性壁(表面に表層材を積層した磁石シート)C2の表面に、実施例6の防火磁性壁面材(表示文字を印刷した表装材を積層した)からなる表示片E2’(縦300mm×横900mm)を磁気吸着したものであり、その後、別の表示片との取り替えや他の箇所への追加表示が容易にできる。
[Example 12]
As shown in FIG. 9, a fireproof magnetic wall material (magnet adherend having a surface layer material laminated on the surface) made of Example 6 on the surface of the fireproof magnetic wall (surface of the magnet sheet) C1 made of Example 8 is used. The produced display piece E2 is magnetically attracted to the entire surface, and thereafter can be easily replaced with another design.
[Example 13]
As shown in FIG. 10, the fireproof magnetic wall material of Example 6 (surface material printed with display characters) was laminated on the surface of the fireproof magnetic wall (magnet sheet having a surface layer material laminated on the surface) C2 of Example 9. ) Display piece E2 ′ (300 mm in length × 900 mm in width) is magnetically attracted, and thereafter, it can be easily replaced with another display piece or added to another part.

[実施例14]
図11に示すように、実施例10からなる防火磁性壁(壁下地材を鋼板とし、表面に表装材を積層した磁石シート)C3の表面に、実施例10の磁石シートと同じ極間で多極着磁を施した実施例5からなる表装材に表示文字を施した防火磁性壁面材である表示片(縦60mm×横800mm)E1’を磁極の異極吸引、同極反撥により貼着させるものであり、防火磁性壁の磁極に沿って該表示片E1(この図では3枚)を、平行に整列磁気吸着できる。
[実施例15]
図12に示すように、実施例11からなる防火磁性壁(表面に表装材を積層した磁石の被着体シート)Dの表面に、実施例5からなる表装材に表示文字を施した防火磁性壁面材である表示片(縦300mm×横900mm)E1を磁気吸着したものであり、その後、別表示片との取り替えが容易にできる他に、各種の磁石による表示片、表示片押え磁石を磁気吸着することができる。
[Example 14]
As shown in FIG. 11, a fireproof magnetic wall (magnet sheet in which the wall base material is a steel plate and a surface material is laminated on the surface) C3 formed on the surface of C3 between the same poles as the magnet sheet of Example 10 is used. A display piece (length 60 mm × width 800 mm) E1 ′, which is a fireproof magnetic wall material provided with display characters on the cover material of Example 5 subjected to pole magnetization, is attached by different pole attraction and repulsion of the same polarity. The display pieces E1 (three in this figure) can be magnetically aligned in parallel along the magnetic poles of the fireproof magnetic wall.
[Example 15]
As shown in FIG. 12, the surface of the fireproof magnetic wall (magnet adherend sheet with the surface material laminated on the surface) D according to Example 11 has the fireproof magnetism with display characters applied to the surface material according to Example 5. The display piece (300 mm long × 900 mm wide) E1, which is a wall material, is magnetically attracted. After that, it can be easily replaced with another display piece. In addition, display pieces and display piece presser magnets with various magnets are magnetized. Can be adsorbed.

[実施例12〜15における各表示片の磁気吸着力]
前記実施例12〜15について、防火磁性壁と表面に磁気貼着する防火磁性壁面材からなる表示片との磁気吸着力を下記の方法で測定する。
[磁気吸着力の測定方法]
防火磁性壁の表面に、表面へ磁気貼着する防火磁性壁面材を10cmの円形に打ち抜
いたものを、バネ秤の引掛用部品を背面の中心部に設けた、平滑な非磁性体製の円盤(10cm)に非測定面を両面テープで貼り合わせて、着磁面(測定面)を磁気吸着させ、壁面に直角方向に引き離すに要する力をバネ秤で測定しg/cmを求める。
[Magnetic attractive force of each display piece in Examples 12 to 15]
About the said Examples 12-15, the magnetic attraction | suction force with the display piece which consists of a fireproof magnetic wall and the fireproof magnetic wall material magnetically stuck to the surface is measured with the following method.
[Measurement method of magnetic attraction force]
Made of a smooth non-magnetic material, the fire-proof magnetic wall material that is magnetically attached to the surface of the fire-proof magnetic wall is punched into a 10 cm 2 circle, and the spring balance hooking part is provided in the center of the back surface. A non-measurement surface is bonded to a disk (10 cm 2 ) with double-sided tape, the magnetized surface (measurement surface) is magnetically adsorbed, and the force required to pull it away from the wall surface in a direction perpendicular to the wall surface is measured with a spring balance to obtain g / cm 2 . .

[測定結果]
表4に示すように、磁気吸着力は、いずれも実用に耐え得る吸着力を有し、中でも壁下地材に鋼板を用いたものは、磁石シートの背面磁束漏洩を防止するので得られる吸着力が大きい。
[Measurement result]
As shown in Table 4, the magnetic attraction force has an attraction force that can withstand practical use. Especially, the one using a steel plate as the wall base material prevents the back surface magnetic flux leakage of the magnet sheet, and thus the attraction force obtained. Is big.

本発明によれば、防火性能に優れガス有害性の少ない防火磁性壁面材とすることができるので、室内の側壁、天井、床面等の各壁面にそれを用いた防火磁性壁を形成することができる。さらに、壁以外にも衝立、パーテーション、掲示板、案内板等にも応用することができ、防火性を求められる、あらゆる装飾や表示に用いることができる。また、重量効果による遮音剤、制振材として用いることができるし、強磁性体粉として軟質磁性材料粉を用いたものは、電波吸収体、電磁波シールド材としても壁、天井、床面、パーテーション等に用いることも可能である。   According to the present invention, it is possible to provide a fireproof magnetic wall material having excellent fireproof performance and less gas hazard. Therefore, a fireproof magnetic wall using the wall surface such as an indoor side wall, a ceiling, or a floor surface is formed. Can do. Furthermore, it can be applied to a partition, a partition, a bulletin board, a guide plate, etc. in addition to the wall, and can be used for any decoration or display that requires fire resistance. In addition, it can be used as a sound-insulating agent and damping material due to weight effect, and those using soft magnetic material powder as ferromagnetic powder can also be used as wave absorber, electromagnetic wave shielding material as wall, ceiling, floor surface, partition It is also possible to use them.

本発明における実施例1〜3のシート状磁石よりなる防火磁性壁面材を示す断面図である。It is sectional drawing which shows the fire prevention magnetic wall material which consists of the sheet-like magnet of Examples 1-3 in this invention. 本発明における実施例5及び実施例7のシート状磁石よりなる防火磁性壁面材の表面に表層材を積層した構成を示す断面図である。It is sectional drawing which shows the structure which laminated | stacked the surface layer material on the surface of the fireproof magnetic wall surface material which consists of the sheet-like magnet of Example 5 and Example 7 in this invention. 本発明の実施例4におけるシート状の磁石の被着体である防火磁性壁面材を示す断面図である。It is sectional drawing which shows the fire prevention magnetic wall surface material which is the adherend of the sheet-like magnet in Example 4 of this invention. 本発明の実施例6におけるシート状の磁石の被着体である防火磁性壁面材の表面に表層材を積層した構成を示す断面図である。It is sectional drawing which shows the structure which laminated | stacked the surface layer material on the surface of the fire prevention magnetic wall surface material which is the adherend of the sheet-like magnet in Example 6 of this invention. 本発明の実施例8における防火磁性壁の構成を示す断面図である。It is sectional drawing which shows the structure of the fire prevention magnetic wall in Example 8 of this invention. 本発明の実施例9における防火磁性壁の構成を示す断面図である。It is sectional drawing which shows the structure of the fire prevention magnetic wall in Example 9 of this invention. 本発明の実施例10における防火磁性壁の構成を示す断面図である。It is sectional drawing which shows the structure of the fire prevention magnetic wall in Example 10 of this invention. 本発明の実施例11における防火磁性壁の構成を示す断面図である。It is sectional drawing which shows the structure of the fire prevention magnetic wall in Example 11 of this invention. 本発明の実施例12における防火磁性壁に表示片等を磁気貼着した例を示す断面図である。It is sectional drawing which shows the example which adhered the display piece etc. to the fire prevention magnetic wall in Example 12 of this invention. 本発明の実施例13における防火磁性壁に表示片等を磁気貼着した例を示す断面図である。It is sectional drawing which shows the example which magnetically sticked the display piece etc. to the fireproof magnetic wall in Example 13 of this invention. 本発明の実施例14における防火磁性壁に表示片等を磁気貼着した例を示す断面図である。It is sectional drawing which shows the example which magnetically sticked the display piece etc. to the fireproof magnetic wall in Example 14 of this invention. 本発明の実施例15における防火磁性壁に表示片等を磁気貼着した例を示す断面図である。It is sectional drawing which shows the example which adhered the display piece etc. to the fireproof magnetic wall in Example 15 of this invention.

符号の説明Explanation of symbols

A1 防火磁性壁面材
A2 表装材を積層した防火磁性壁面材
B1 防火磁性壁面材(磁石の被着体)
B2 表装材を積層した防火磁性壁面材(磁石の被着体)
C1 (実施例8の)防火磁性壁
C2 (実施例9の)防火磁性壁
C3 (実施例10の)防火磁性壁
D (実施例11の)防火磁性壁
E1、E1’、E2、E2’ 表示片
1 表装材
2 壁下地材
3 不燃石膏ボード
4 亜鉛メッキ鋼板
A1 Fire-resistant magnetic wall material A2 Fire-resistant magnetic wall material with laminated exterior materials B1 Fire-resistant magnetic wall material (magnet adherend)
B2 Fire-resistant magnetic wall material (magnet adherend) laminated with a cover material
C1 (Example 8) fireproof magnetic wall C2 (Example 9) fireproof magnetic wall C3 (Example 10) fireproof magnetic wall D (Example 11) fireproof magnetic wall E1, E1 ', E2, E2' Piece 1 Surface material 2 Wall base material 3 Non-combustible gypsum board 4 Galvanized steel sheet

Claims (9)

(A)塩素化ポリオレフィン系エラストマーである粘結剤100重量部当たり、(B)臭素化芳香族系難燃剤5〜20重量部、(C)亜鉛系難燃剤10〜30重量部、及び(D)強磁性体粉末500〜1400重量部を含有し、かつ、(A)成分と(B)成分と(C)成分と(D)成分との合計量に対する(B)成分と(C)成分と(D)成分との合計量の割合が、容積比で0.73以下である磁性組成物からなる、厚み0.05〜0.6mmの磁性シートであって、不燃石膏ボードに貼着した場合のコーンカロリーメーターによる発熱性試験(ISO5660−1準拠)にて、加熱開始後5分間の総発熱量が8MJ/m以下、200KW/mを超える発熱速度が10秒を越えて継続しない防火性能以上の防火性能を有し、かつ、ガス有害性試験(昭和51年建設省告示1231号準拠)にて、平均マウス行動停止時間の値が6.8分以上であることを特徴とする防火磁性壁面材 (B) 5 to 20 parts by weight of a brominated aromatic flame retardant, (C) 10 to 30 parts by weight of a zinc-based flame retardant, and (D) per 100 parts by weight of a binder that is a chlorinated polyolefin elastomer. And (B) component and (C) component with respect to the total amount of (A) component, (B) component, (C) component, and (D) component. (D) A magnetic sheet having a thickness of 0.05 to 0.6 mm, which is made of a magnetic composition having a volume ratio of 0.73 or less, and is adhered to an incombustible gypsum board. In a corn calorimeter (based on ISO 5660-1), the total calorific value for 5 minutes after the start of heating is 8 MJ / m 2 or less and the heat generation rate exceeding 200 KW / m 2 does not continue for more than 10 seconds It has fireproof performance that exceeds the performance, and gas At damage resistance test (1976 Ministry of Construction Notice 1231 No. compliant), fire magnetic wall material, wherein the value of the average mouse behavior stop time is more than 6.8 minutes (A)成分を塩素化ポリエチレンエラストマーとし、(B)成分を2,2−ビス{4−(2,3−ジブロモプロポキシ)−3,5−ジブロモフェニル}プロパンとし、(C)成分を硼酸亜鉛とすることを特徴とする請求項1記載の防火磁性壁面材   The component (A) is a chlorinated polyethylene elastomer, the component (B) is 2,2-bis {4- (2,3-dibromopropoxy) -3,5-dibromophenyl} propane, and the component (C) is zinc borate. The fireproof magnetic wall material according to claim 1, 前記、防火磁性壁面材の表面に、JISK7201−2に準拠する限界酸素指数(LOI)28以上で厚み0.15mm以下の非磁性体フィルムを、表装材として一体的に積層したものであって、不燃石膏ボードに貼着した場合のコーンカロリーメーターによる発熱性試験(ISO5660−1準拠)にて、加熱開始後5分間の総発熱量が8MJ/m以下、200KW/mを超える発熱速度が10秒を越えて継続しない防火性能以上の防火性能を有し、かつ、ガス有害性試験(昭和51年建設省告示1231号準拠)にて、平均マウス行動停止時間の値が6.8分以上であることを特徴とする請求項1または2に記載の防火磁性壁面材 On the surface of the fireproof magnetic wall material, a non-magnetic film having a limiting oxygen index (LOI) of 28 or more and a thickness of 0.15 mm or less conforming to JISK7201-2 is integrally laminated as a cover material, In the exothermic test with a corn calorimeter (based on ISO5660-1) when pasted on an incombustible gypsum board, the total calorific value for 5 minutes after the start of heating is 8 MJ / m 2 or less and a heating rate exceeding 200 KW / m 2 It has a fireproof performance that does not last for more than 10 seconds and has a fireproof performance that is more than 6.8 minutes in the gas hazard test (according to Ministry of Construction Notification No. 1231 in 1976). The fireproof magnetic wall material according to claim 1 or 2, (D)成分を硬質磁性材料粉末とし、少なくとも片面に多極着磁を施してシート状磁石としたことを特徴とする請求項1〜3のいずれかに記載の防火磁性壁面材   The fireproof magnetic wall material according to any one of claims 1 to 3, wherein the component (D) is a hard magnetic material powder, and at least one surface is subjected to multipolar magnetization to form a sheet magnet. (D)成分を軟質磁性材料粉末とし、シート状の磁石の被着体となることを特徴とする請求項1〜3のいずれかに記載の防火磁性壁面材   The fireproof magnetic wall material according to any one of claims 1 to 3, wherein the component (D) is a soft magnetic material powder and becomes an adherend of a sheet-like magnet. 請求項1〜5のいずれかに記載の防火磁性壁面材を、不燃材料(平成12年建設省告示第1400号)乃至準不燃材料(平成12年建設省告示第1401号)よりなる壁下地材に貼着したことを特徴とする防火磁性壁   A wall base material made of a non-combustible material (Ministry of Construction Notification No. 1400 in 2000) or a quasi-incombustible material (Ministry of Construction Notification No. 1401 in 2000). Fireproof magnetic wall characterized by being attached to 請求項4に記載の防火磁性壁面材を用いた請求項6に記載の防火磁性壁の表面に、一部分または全面に請求項5に記載の防火磁性壁面材、あるいは、表装材を積層または塗布した磁性金属ホイルを磁気貼着したことを特徴とする防火磁性壁   The fireproof magnetic wall material according to claim 5 or the cover material is laminated or applied to a part or the entire surface of the fireproof magnetic wall according to claim 6 using the fireproof magnetic wall material according to claim 4. Fireproof magnetic wall characterized by magnetically sticking magnetic metal foil 請求項4に記載の防火磁性壁面材を用いた請求項6に記載の防火磁性壁の表面に、一部分または全面に前記請求項4に記載の防火磁性壁面材と同様に多極着磁を施した防火磁性壁面材を磁気貼着したことを特徴とする防火磁性壁   The surface of the fire magnetic wall according to claim 6 using the fire magnetic wall material according to claim 4 is partially or entirely subjected to multipolar magnetization in the same manner as the fire magnetic wall material according to claim 4. Fireproof magnetic wall characterized by magnetically sticking fireproof magnetic wall material 請求項5に記載の防火磁性壁面材、あるいは、表装材を積層または塗布した磁性金属ホイルを用いた請求項6に記載の防火磁性壁の表面に、一部分または全面に請求項4に記載の防火磁性壁面材を磁気貼着したことを特徴とする防火磁性壁


The fireproof magnetic wall material according to claim 5 or the surface of the fireproof magnetic wall according to claim 6, wherein the fireproof magnetic wall material according to claim 6 or a magnetic metal foil laminated or coated with a covering material is used. Fireproof magnetic wall characterized by magnetically attaching magnetic wall material


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