JPH01189479A - Preparation of core of heat insulating body - Google Patents
Preparation of core of heat insulating bodyInfo
- Publication number
- JPH01189479A JPH01189479A JP63014345A JP1434588A JPH01189479A JP H01189479 A JPH01189479 A JP H01189479A JP 63014345 A JP63014345 A JP 63014345A JP 1434588 A JP1434588 A JP 1434588A JP H01189479 A JPH01189479 A JP H01189479A
- Authority
- JP
- Japan
- Prior art keywords
- foamed
- core material
- panel
- insulating body
- release sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011162 core material Substances 0.000 claims description 50
- 239000000463 material Substances 0.000 claims description 26
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000006261 foam material Substances 0.000 abstract description 7
- 238000005187 foaming Methods 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 abstract description 4
- 229920006267 polyester film Polymers 0.000 abstract description 3
- 239000002313 adhesive film Substances 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 239000012212 insulator Substances 0.000 description 15
- 210000003491 skin Anatomy 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 11
- 239000006260 foam Substances 0.000 description 11
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 10
- 229920005862 polyol Polymers 0.000 description 10
- 150000003077 polyols Chemical class 0.000 description 10
- 239000005022 packaging material Substances 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 5
- 125000001743 benzylic group Chemical group 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000023402 cell communication Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004088 foaming agent Substances 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 125000002524 organometallic group Chemical group 0.000 description 3
- 229920001228 polyisocyanate Polymers 0.000 description 3
- 239000005056 polyisocyanate Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- HPZJMUBDEAMBFI-WTNAPCKOSA-N (D-Ala(2)-mephe(4)-gly-ol(5))enkephalin Chemical compound C([C@H](N)C(=O)N[C@H](C)C(=O)NCC(=O)N(C)[C@@H](CC=1C=CC=CC=1)C(=O)NCCO)C1=CC=C(O)C=C1 HPZJMUBDEAMBFI-WTNAPCKOSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical class [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical group 0.000 description 1
- 150000004984 aromatic diamines Chemical group 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical group [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- AYOHIQLKSOJJQH-UHFFFAOYSA-N dibutyltin Chemical compound CCCC[Sn]CCCC AYOHIQLKSOJJQH-UHFFFAOYSA-N 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- WDPYDDUVWLUIDM-UHFFFAOYSA-N ethyl carbamate;phenol Chemical compound CCOC(N)=O.OC1=CC=CC=C1 WDPYDDUVWLUIDM-UHFFFAOYSA-N 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000005001 laminate film Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
- Refrigerator Housings (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、冷蔵庫や冷凍庫等に用いられる断熱体の芯材
の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for manufacturing a core material of a heat insulator used in refrigerators, freezers, etc.
近年、この種の断熱体の断熱性能を向上させることを目
的として、芯材をガスバリヤ−性を有する外包材により
減圧密封してなる断熱体が開発されている。In recent years, in order to improve the heat insulation performance of this type of heat insulator, a heat insulator in which a core material is sealed under reduced pressure with an outer wrapping material having gas barrier properties has been developed.
第４図に上記従来の断熱体１の構成を示す。FIG. 4 shows the structure of the conventional heat insulator 1 described above.
同図において、２は通気性を有する内袋、３は上記内袋
２の内部に充填されたパーライト等の粉末からなる芯材
である。また、４はアルミ蒸着ポリエステルフィルムと
ポリエチレンフィルムのラミネート構成による金属−ブ
ラスチンクラミネートフィルム等からなる袋状の外包材
である。In the figure, 2 is a breathable inner bag, and 3 is a core material made of powder such as perlite filled inside the inner bag 2. Further, 4 is a bag-shaped outer wrapping material made of a metal-blastine laminate film or the like having a laminate structure of an aluminum vapor-deposited polyester film and a polyethylene film.
そして、上記外包材４の内部に、粉末の芯材３が充填さ
れた内袋２を挿入して内部を０．１ ｍｍＨｇ程度に減
圧した後、上記外包材４の開口部を熱融着により封止す
ることにより、上記断熱体ｌが形成される。Then, after inserting the inner bag 2 filled with the powder core material 3 into the outer packaging material 4 and reducing the pressure inside to about 0.1 mmHg, the opening of the outer packaging material 4 is sealed by heat fusion. By sealing, the above-mentioned heat insulating body l is formed.
ところが、上記従来の断熱体１においては、その熱伝導
率が０．００６ ｋｃａｌ／ｍ ｈ ’Ｃと、例えば発
泡ポリウレタンからなる断熱体の２〜３倍もの優れた断
熱性能を有するが、大気圧の作用により芯材３としての
パーライト等の粉末が密に圧縮されるため、発泡ポリウ
レタンからなる上記断熱体の１０倍もの密度に当る０、
２５〜０．３０ｇ／ａＪとなり非常に正いものとなって
いた。However, the conventional heat insulating body 1 has a thermal conductivity of 0.006 kcal/m h'C, which is two to three times as good as that of a heat insulating body made of polyurethane foam, for example, but at atmospheric pressure. Because the powder such as pearlite as the core material 3 is densely compressed by the action of
It was 25 to 0.30 g/aJ, which was very accurate.
その結果、上記断熱体１を使用した製品の搬送が回能と
なったり、携帯用の例えば小型断熱箱体には用いること
ができない等の欠点があった。As a result, there were drawbacks such as the insulating body 1 being difficult to transport for products using the insulating body 1, and the insulating body 1 being unable to be used in portable, for example, small insulating boxes.
そこで、本発明の目的とするところは、断熱体の断熱性
能を損なうことなく軽量化を図ることの可能な断熱体の
芯材の製造方法を提供することにある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a method for manufacturing a core material of a heat insulating body that can reduce the weight of the heat insulating body without impairing the heat insulating performance of the heat insulating body.
上記目的を達成するために、本発明が採用する主たる手
段は、その要旨とするところが、芯材をガスバリヤ−性
を有する外包材により減圧密封してなる断熱体の上記芯
材の製造方法において、発泡材料を所定形状に発泡硬化
させて芯材を形成するための容器の内面に、上記発泡材
料が発泡硬化した時にこの発泡材料の表面に形成される
被膜を剥離するための剥離膜を設け、発泡硬化した上記
発泡材料を上記容器からとり出した後上記剥離膜を剥す
ことにより、この発泡材料の表面に形成された被膜を剥
離して連通気泡構造の上記芯材を製造するようにした点
に係る断熱体の芯材の製造方法である。In order to achieve the above object, the main means adopted by the present invention is that the method for producing the core material of a heat insulating body in which the core material is vacuum-sealed with an outer packaging material having gas barrier properties includes: A peeling film is provided on the inner surface of a container for forming a core material by foaming and hardening the foamed material into a predetermined shape, for peeling off a coating formed on the surface of the foamed material when the foamed material is foamed and hardened. The core material having an open cell structure is manufactured by peeling off the film formed on the surface of the foam material by removing the peeling film after taking out the foamed and hardened foam material from the container. A method of manufacturing a core material of a heat insulating body according to the present invention.
尚、上記発泡材料としては、例えば有機ポリイソシアネ
ート、ポリオール、触媒、整泡剤１発泡剤及び気泡連通
化剤を原料とし、上記ポリオール成分にベンジリックエ
ーテル系フェノールを含有し、且つ触媒として有機金属
触媒を用いたものを使用することができる。The above-mentioned foaming material is, for example, made from an organic polyisocyanate, a polyol, a catalyst, a foam stabilizer, a foaming agent, and a cell communication agent, contains a benzylic ether type phenol as the polyol component, and contains an organic metal as a catalyst. Those using a catalyst can be used.
上記方法により製造された芯材は、発泡材料が発泡硬化
したものであるため、この芯材を外包材により減圧密封
する際、芯材が大気圧の作用により圧縮されることなく
所定の圧力まで減圧することができる。The core material manufactured by the above method is a foamed material that has been cured by foaming, so when the core material is sealed under reduced pressure with the outer packaging material, the core material is not compressed by the action of atmospheric pressure and reaches the specified pressure. Can be depressurized.
また、発泡材料が発泡硬化する際にその表面に形成され
る被膜が剥離されていることから、上記芯材の連通気泡
率は、極めて高い値となる。Furthermore, since the coating formed on the surface of the foamed material is peeled off when the foamed material is foamed and cured, the open cell ratio of the core material becomes an extremely high value.
以下添付図面を参照して、本発明を具体化した実施例に
付き説明し、本発明の理解に供する。尚、以下の実施例
は、本発明を具体化した一例であって、本発明の技術的
範囲を限定する性格のものではない。DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples embodying the present invention will be described below with reference to the accompanying drawings to provide an understanding of the present invention. It should be noted that the following examples are examples embodying the present invention, and are not intended to limit the technical scope of the present invention.
ここに、第１図（ａｌ、 （ｂｌはそれぞれ本発明の一
実施例に係る断熱体の芯材の製造方法を説明するための
ものであって発泡材料が容器の内部で発泡硬化した状態
での側断面図、第２図は上記製造方法により製造された
芯材の斜視図、第３図は上記芯材を用いて形成された断
熱体の側断面図である。Here, FIGS. 1(al) and 1(bl) are for explaining the manufacturing method of the core material of the heat insulating body according to one embodiment of the present invention, and the foamed material is foamed and hardened inside the container. FIG. 2 is a perspective view of a core material manufactured by the above manufacturing method, and FIG. 3 is a side sectional view of a heat insulator formed using the above core material.
以下、本発明の一実施例に係る断熱体１０（第３図参照
）の芯材９（第２図参照）の製造方法について、第１図
［ａ）、 （ｂ）に基づいて説明する。Hereinafter, a method for manufacturing the core material 9 (see FIG. 2) of the heat insulating body 10 (see FIG. 3) according to an embodiment of the present invention will be described based on FIGS. 1 [a] and (b).
上記芯材９を形成するための発泡材料としては、例えば
有機ポリイソシアネートポリオール。The foam material for forming the core material 9 is, for example, organic polyisocyanate polyol.
触媒、整泡剤１発泡剤及び気泡連通化剤を原料とし、上
記ポリオールの成分にベンジリックエーテル系フェノー
ルを含有し、且つ触媒として有機金属触媒を用いたもの
を使用することができる。Catalyst, Foam Stabilizer 1 A foaming agent and a cell communication agent may be used as raw materials, the above-mentioned polyol contains benzylic ether phenol as a component, and an organometallic catalyst is used as the catalyst.
以下の表１に、上記発泡材料における各原料及びその配
合部数の一例を示す。Table 1 below shows an example of each raw material and the number of parts thereof in the foamed material.
表 １
上記表１において、ポリオールＡはベンジリッフェーテ
ル系フェノールで水酸基価５２０ＩＩｆＫＯＨ／ｇ、ポ
リオールＢは芳香族ジアミン系シ：Ｉ塘系の水酸基価４
６０■ＫＯＨ／ｇのポリエーテル系ポリオール、ポリオ
ールＣはフタル酸エステル系の官能基数２．０．水酸基
価３９０■ＫＯＨ／ｇのポリエステル系ポリオールであ
る。整泡剤はシリコン系界面活性剤、発泡剤はフロンＲ
−１１である。触媒Ａは有機金属触媒（例えばジブチル
スズシラウリレート）、触媒Ｂはアミン系触媒である。Table 1 In Table 1 above, polyol A is a benzyliffether-based phenol with a hydroxyl value of 520 IIfKOH/g, and polyol B is an aromatic diamine-based resin with a hydroxyl value of 4.
60■KOH/g polyether polyol, polyol C has a phthalate ester functional group number of 2.0. It is a polyester polyol with a hydroxyl value of 390 ■KOH/g. The foam stabilizer is a silicone surfactant, and the foaming agent is Freon R.
-11. Catalyst A is an organometallic catalyst (for example, dibutyltin silaurylate), and catalyst B is an amine catalyst.
気泡連通化剤はステアリン酸カルシウムである。The cell communication agent is calcium stearate.
また、を機ポリイソシアネートは、精製トリレンジイソ
シアネートとポリオールの予備反応によって得られるプ
レポリマー化された精製トリレンジイソシアネート及び
精製ジフェニールメタンジイソシアネートである。The polyisocyanates are prepolymerized purified tolylene diisocyanate and purified diphenylmethane diisocyanate obtained by preliminary reaction of purified tolylene diisocyanate and polyol.
まず、上記構成による発泡材料を所定形状に発泡硬化さ
せて芯材９を形成するための容器６１若しくは６＋、の
内面に、上記発泡材料が発泡硬化した時に、この発泡材
料の表面に形成されるスキン層（被膜）を剥離するため
の剥離シート７ （剥離膜）を装着する。First, when the foamed material is foamed and hardened, it is formed on the inner surface of the container 61 or 6+ for forming the core material 9 by foaming and hardening the foamed material having the above configuration into a predetermined shape. A release sheet 7 (release film) for removing the skin layer (film) is attached.
上記剥離シート７としては、上記スキン層を含浸或いは
接着することのできる例えば含浸性の優れた紙若しくは
ポリエステルフィルム等からなる接着性フィルムが用い
られる。As the release sheet 7, an adhesive film made of, for example, paper or polyester film with excellent impregnability that can be impregnated with or adhered to the skin layer is used.
次に、上記容器６１若しくは６トの内部に上記発泡材料
を注入し、この発泡材料を発泡硬化させることにより、
硬質フェノールウレタンフオームパネル５が形成される
。Next, the foamed material is injected into the container 61 or 6t, and the foamed material is foamed and hardened.
A rigid phenolic urethane foam panel 5 is formed.
そして、上記パネル５を剥離シート７と共に容器６．若
しくは６しから取り出し、パネル５の表面から上記剥離
シート７を強制的に剥す。Then, the panel 5 is attached to the container 6 along with the release sheet 7. Alternatively, the release sheet 7 is forcibly peeled off from the surface of the panel 5.
この時、剥離シート７とパネル５との接着強度がこのパ
ネル５自体の組織の強度よりも勝るため、スキン層であ
る表皮のみが上記剥離シート７の方に完全に剥ぎ取られ
、１００％連道化した硬質フェノールウレタンフオーム
からなる芯材９が容易に得られる（第２図参照）。At this time, since the adhesive strength between the release sheet 7 and the panel 5 is stronger than the tissue strength of the panel 5 itself, only the epidermis, which is the skin layer, is completely peeled off to the release sheet 7, resulting in 100% continuity. A core material 9 made of hard phenolic urethane foam can be easily obtained (see FIG. 2).
スキン層の有無による硬質フェノールウレタンフオーム
からなる芯材の密度と連続気泡率の比較例を表２に示す
。Table 2 shows comparative examples of the density and open cell ratio of core materials made of hard phenolic urethane foam with and without a skin layer.
表 ２
そして、上記芯材９を１２０℃の雰囲気内で約２時間加
熱し、吸着水分等を蒸発させた後、ガスバリヤ−性を有
する外包材８により減圧密封（この時の内部圧力は例え
ば０．０５ ｗｓＨｇ）することにより、断熱体１０が
形成される（第３図参照）。Table 2 The core material 9 is then heated in an atmosphere of 120° C. for about 2 hours to evaporate adsorbed moisture, and then sealed under reduced pressure with an outer packaging material 8 having gas barrier properties (internal pressure at this time is, for example, 0). .05 wsHg), the heat insulator 10 is formed (see FIG. 3).
上記したようにして形成された芯材９は、発泡硬化した
硬質フェノールウレタンフオームであるため、この芯材
９を外包材８により減圧密封する際、芯材９が大気圧の
作用により圧縮されることはなく、所定の圧力まで減圧
することができる。Since the core material 9 formed as described above is a hard phenolic urethane foam that has been foamed and hardened, when the core material 9 is sealed under reduced pressure with the outer packaging material 8, the core material 9 is compressed by the action of atmospheric pressure. The pressure can be reduced to a predetermined level without any problems.
従って、上記芯材９を用いることにより、密度の小さい
極めて軽量な断熱体１０を提供することができる。Therefore, by using the core material 9, it is possible to provide an extremely lightweight heat insulating body 10 with a low density.
尚、上記実施例において、容器６１若しくは６トを予め
適宜寸法に設定することにより、硬質フェノールウレタ
ンフオームのブロックからのフオーム切り出し工程を経
ることなく、所定形状の断熱体ｌＯを容易に形成するこ
とができる。In the above embodiment, by setting the container 61 or 6 to an appropriate size in advance, it is possible to easily form the heat insulating body 10 in a predetermined shape without going through the step of cutting out the foam from a block of hard phenol urethane foam. Can be done.
以下の表３に、パネル５の表面にスキン層を有さない芯
材９を用いて形成された断熱体１０とパネル５の表面に
スキン層を有する芯材を用いて形成された断熱体の各熱
伝導率の比較例を示す。Table 3 below shows a heat insulator 10 formed using a core material 9 that does not have a skin layer on the surface of the panel 5 and a heat insulator formed using a core material that has a skin layer on the surface of the panel 5. A comparative example of each thermal conductivity is shown.
表 ３
尚、上記各熱伝導率は、ＡＳＴＭ−Ｃ５１８ｒ熱流計法
」に基づいて測定したものである。Table 3 The above thermal conductivities were measured based on the ASTM-C518r heat flow meter method.
上記表３からも明らかなように、スキン層を有するパネ
ル５を用いた場合、外包材により減圧密封した直後には
極めて低い値の熱伝導率であっても、スキン層の部分が
完全に連続気泡化していないために、経時的に独立気泡
中に含まれるフロンガスや炭酸ガス及び空気等の気体が
拡散し、断熱体の内部圧力を上昇せしめて熱伝導率の劣
化を招く。As is clear from Table 3 above, when the panel 5 having a skin layer is used, even if the thermal conductivity is extremely low immediately after vacuum sealing with the outer packaging material, the skin layer part is completely continuous. Since the closed cells are not formed into bubbles, gases such as chlorofluorocarbon gas, carbon dioxide gas, and air contained in the closed cells diffuse over time, increasing the internal pressure of the heat insulator and causing deterioration of thermal conductivity.
他方、スキン層を有さないパネル５からなる芯材９を用
いた断熱体１０においては、均一な連続気泡構造を有し
、初期・経時後共に極めて低い値の熱伝導率を示す。On the other hand, a heat insulator 10 using a core material 9 made of a panel 5 without a skin layer has a uniform open cell structure and exhibits extremely low thermal conductivity both initially and after aging.
尚、スキン層における連続気泡化については、気泡の樹
脂膜が厚いため、破泡剤が膜厚寸法を不均一化させて破
泡させるに至らず、独立気泡を残す。Regarding the formation of open cells in the skin layer, since the resin film of the cells is thick, the foam-breaking agent makes the film thickness non-uniform and does not break the cells, leaving closed cells.
上記したようにパネル５の表面からスキン層が除去され
た芯材９を用いて断熱体１０を形成することにより、長
期にわたり断熱性能の劣化しない優れた断熱体１０を提
供することができる。By forming the heat insulator 10 using the core material 9 from which the skin layer has been removed from the surface of the panel 5 as described above, it is possible to provide an excellent heat insulator 10 whose heat insulation performance does not deteriorate over a long period of time.
また、原料処方としてポリオール成分にベンジリックエ
ーテル系フェノールを含育しているため、通常のポリウ
レタンを使用する処方に比べ、フオームの連通化を図り
やすく、本実施例で示したようにパネル５の表面からス
キン層を除去することにより、ｌＯＯ％達通化された芯
材９を容易に得ることができる。In addition, as the raw material formulation contains benzylic ether type phenol in the polyol component, it is easier to achieve communication of the foam compared to formulations using ordinary polyurethane, and as shown in Panel 5 as shown in this example. By removing the skin layer from the surface, it is possible to easily obtain the core material 9 with 100% penetration.
更に、ベンジリックエーテル系フェノールと共に有機金
属触媒を使用することにより、反応活性が高く且つ反応
初期にウレタン結合が生成し、微細なセルを形成するこ
とができる。Further, by using an organometallic catalyst together with a benzylic ether phenol, the reaction activity is high and urethane bonds are generated at the initial stage of the reaction, allowing the formation of fine cells.
このような微細なセルを有する芯材９を断熱体１０に用
いることにより、断熱体１０における気体熱伝導をセル
の、より大きなものに比べて高い圧力下でも同等まで低
減することができ、工業的に取扱易い０．１〜０．０１
ｆｉｕｇなる圧力条件のもとにおいても、優れた断熱
性能を発揮することができる。By using the core material 9 having such fine cells in the heat insulator 10, the gas heat conduction in the heat insulator 10 can be reduced to the same level as that of larger cells even under high pressure. 0.1 to 0.01, which is easy to handle
Excellent heat insulation performance can be exhibited even under pressure conditions such as 1.
本発明は、上記したように、芯材をガスバリヤ−性を有
する外包材により減圧密封してなる断熱体の上記芯材の
製造方法において、発泡材料を所定形状に発泡硬化させ
て芯材を形成するための容器の内面に、上記発泡材料が
発泡硬化した時にこの発泡材料の表面に形成される被膜
を剥離するための剥＃ｌ膜を設け、発泡硬化した上記発
泡材料を上記容器からとり出した後上記剥離股を剥すこ
とにより、この発泡材料の表面に形成された被膜を剥離
して連通気泡構造の上記芯材を製造するようにしたこと
を特徴とする断熱体の芯材の製造方法であるから、断熱
体の断熱性能を損なうことなく軽量化を図ることの可能
な断熱体の芯材を製造することができる。As described above, the present invention provides a method for manufacturing a core material of a heat insulating body in which a core material is sealed under reduced pressure with an outer packaging material having gas barrier properties, in which the core material is formed by foaming and hardening a foam material into a predetermined shape. A peel-off film is provided on the inner surface of the container for removing the film formed on the surface of the foamed material when the foamed material is foamed and hardened, and the foamed material that has been foamed and hardened is taken out from the container. A method for manufacturing a core material of a heat insulating body, characterized in that the film formed on the surface of the foamed material is peeled off by peeling off the peeling crotch to produce the core material having an open cell structure. Therefore, it is possible to manufacture a core material for a heat insulating body that can be made lightweight without impairing the heat insulating performance of the heat insulating body.
第１図ｆａｎ、 （ｂｌはそれぞれ本発明の一実施例に
係る断熱体の芯材の製造方法を説明するためのものであ
って発泡材料が容器の内部で発泡硬化した状態での側断
面図、第２図は上記製造方法により製造された芯材の！
ｌｌ面図第３図は上記芯材を用いて形成された断熱体の
側断面図、第４図は従来の製造方法により製造された芯
材を用いて形成された断熱体の側断面図である。
〔符号の説明〕
５・・・硬質フェノールウレタンフオームパネル６ｍ、
６Ｉ、・・・容器
７・・・剥離シート（剥離膜）
８・・・外包材
９・・・芯材
１０・・・断熱体。Figures 1 (fan) and (BL) are side sectional views of the foamed material foamed and hardened inside the container, respectively, for explaining the method for manufacturing the core material of the heat insulating body according to one embodiment of the present invention. , Figure 2 shows the core material manufactured by the above manufacturing method!
Figure 3 is a side sectional view of a heat insulating body formed using the above-mentioned core material, and Figure 4 is a side sectional view of a heat insulating body formed using a core material manufactured by a conventional manufacturing method. be. [Explanation of symbols] 5...Hard phenolic urethane foam panel 6m,
6I, Container 7 Release sheet (release film) 8 Outer packaging material 9 Core material 10 Heat insulator.
Claims (1)
封してなる断熱体の上記芯材の製造方法において、発泡
材料を所定形状に発泡硬化させて芯材を形成するための
容器の内面に、上記発泡材料が発泡硬化した時にこの発
泡材料の表面に形成される被膜を剥離するための剥離膜
を設け、発泡硬化した上記発泡材料を上記容器からとり
出した後上記剥離膜を剥すことにより、この発泡材料の
表面に形成された被膜を剥離して連通気泡構造の上記芯
材を製造するようにしたことを特徴とする断熱体の芯材
の製造方法。1. In the above-mentioned method for manufacturing a core material of a heat insulating body in which a core material is sealed under reduced pressure with an outer wrapping material having gas barrier properties, a foamed material is foamed and hardened into a predetermined shape to form a core material on the inner surface of a container. , by providing a peeling film for peeling off a coating formed on the surface of the foamed material when the foamed material is foamed and hardened, and peeling off the peeling film after taking out the foamed and hardened foamed material from the container. A method for producing a core material for a heat insulating body, characterized in that the core material having an open cell structure is produced by peeling off a coating formed on the surface of the foamed material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63014345A JPH01189479A (en) | 1988-01-25 | 1988-01-25 | Preparation of core of heat insulating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63014345A JPH01189479A (en) | 1988-01-25 | 1988-01-25 | Preparation of core of heat insulating body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01189479A true JPH01189479A (en) | 1989-07-28 |
Family
ID=11858481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63014345A Pending JPH01189479A (en) | 1988-01-25 | 1988-01-25 | Preparation of core of heat insulating body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01189479A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0240481A (en) * | 1988-07-29 | 1990-02-09 | Matsushita Refrig Co Ltd | Heat insulating body |
| JPH062798A (en) * | 1992-06-16 | 1994-01-11 | Matsushita Refrig Co Ltd | Manufacture of heat insulated body |
-
1988
- 1988-01-25 JP JP63014345A patent/JPH01189479A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0240481A (en) * | 1988-07-29 | 1990-02-09 | Matsushita Refrig Co Ltd | Heat insulating body |
| JPH062798A (en) * | 1992-06-16 | 1994-01-11 | Matsushita Refrig Co Ltd | Manufacture of heat insulated body |
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