JPS62259097A - Metallic fiber composite sheet - Google Patents
Metallic fiber composite sheetInfo
- Publication number
- JPS62259097A JPS62259097A JP10191686A JP10191686A JPS62259097A JP S62259097 A JPS62259097 A JP S62259097A JP 10191686 A JP10191686 A JP 10191686A JP 10191686 A JP10191686 A JP 10191686A JP S62259097 A JPS62259097 A JP S62259097A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- fibers
- sheet
- metal
- composite 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims description 24
- 229920000914 Metallic fiber Polymers 0.000 title 1
- 239000000835 fiber Substances 0.000 claims description 76
- 229910052751 metal Inorganic materials 0.000 claims description 57
- 239000002184 metal Substances 0.000 claims description 57
- 229920005989 resin Polymers 0.000 claims description 41
- 239000011347 resin Substances 0.000 claims description 41
- 238000000034 method Methods 0.000 description 13
- 238000011049 filling Methods 0.000 description 8
- 238000012856 packing Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- -1 fluororesin Chemical class 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000011133 lead Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002905 metal composite material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 238000010345 tape casting Methods 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 239000011135 tin Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、充填密度が高いにも拘らず柔軟性のすぐれた
金属繊維複合シートに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a metal fiber composite sheet that has excellent flexibility despite its high packing density.
［従来技術］
従来、特開昭５４−６７８９９号や実公昭５６−３０８
８０号のように、金属繊維複合シートは金属繊維をシー
１〜状に集合させて不織布を形成したのち、これを合成
樹脂で含浸した複合シート、あるいは前記不織布をフィ
ルムなどでラミネートした複合シート、ざらには特開昭
５８−６０２９９号のような合成樹脂と金属繊維とを混
合した混合組成物をスリット間から押出すか、またはロ
ール間に通してシートにした複合シートなどがある。[Prior art] Conventionally, Japanese Patent Application Laid-Open No. 54-67899 and Japanese Utility Model Publication No. 56-308
As in No. 80, a metal fiber composite sheet is a composite sheet in which metal fibers are assembled into a sheet 1 to form a nonwoven fabric and then impregnated with a synthetic resin, or a composite sheet in which the nonwoven fabric is laminated with a film or the like. There are composite sheets such as those disclosed in Japanese Patent Application Laid-open No. 58-60299 in which a mixed composition of synthetic resin and metal fibers is extruded through slits or passed between rolls.
［発明が解決しようとする問題点］ しかし、かかる複合シートには次のような欠点がおる。[Problem that the invention attempts to solve] However, such composite sheets have the following drawbacks.
（１）金属繊維不織布を樹脂で含浸したものはピンホー
ルが発生し易い。さらにかかるシートは平面的に配向し
ており、金属繊維の充填量に比例して硬くなる。(1) Metal fiber nonwoven fabrics impregnated with resin tend to have pinholes. Furthermore, such sheets are planarly oriented and become stiffer in proportion to the amount of metal fiber filling.
（２） 金属繊維と樹脂とからなる混合組成物を押出
すか、圧延したものは、シート状にするために、金属繊
維の充填密度に限界があり、高密度の複合シートが得ら
れない。ざらにこのシートは金属繊維が押出し、方向ま
たは圧延方向に平面的に配向する傾向が強く、極めてピ
ンホールが発生し易く、この場合も金属繊維の充填量に
比例してシートは硬くなる。(2) When extruding or rolling a mixed composition consisting of metal fibers and resin, it is made into a sheet, so there is a limit to the packing density of the metal fibers, and a high-density composite sheet cannot be obtained. Roughly speaking, in this sheet, the metal fibers have a strong tendency to be oriented planarly in the extrusion direction or rolling direction, and pinholes are extremely likely to occur, and in this case also, the sheet becomes hard in proportion to the filling amount of metal fibers.
（３） いずれの場合も金属繊維の充填密度には限界
があり、したがって、要求に応じた性能を有する複合シ
ートを提供できない場合があった。(3) In either case, there is a limit to the packing density of the metal fibers, and therefore, it may not be possible to provide a composite sheet with performance that meets the requirements.
本発明は、従来技術では到底達成し得なかった二つの要
件を同時に達成した画期的な複合シートを提供するもの
である。The present invention provides an epoch-making composite sheet that simultaneously achieves two requirements that could not be achieved with the prior art.
すなわち、本発明は、充填密度も、柔軟性も高い金属繊
維複合シートである。That is, the present invention provides a metal fiber composite sheet with high packing density and flexibility.
かかる効果を達成したことにより、導電性、電磁波遮蔽
性、熱伝導性、防音性、高比重性など金属の有する多機
能特性をいかんなく発揮し得るシートを提供し得たもの
である。それも、通常、粗硬である筈の充填ωで、極め
て柔軟なシートとして提供し得たものである。By achieving such effects, we have been able to provide a sheet that can fully exhibit the multifunctional properties of metals, such as electrical conductivity, electromagnetic wave shielding properties, thermal conductivity, soundproofing properties, and high specific gravity. Also, the filling ω, which is normally supposed to be rough and hard, was able to be provided as an extremely flexible sheet.
［問題点を解決するための手段］
本発明は上記目的を達成するために次のような構成を有
する。すなわち、
（１） 樹脂と金属繊維とからなる複合シートにおい
て、該樹脂中の短繊維状の金属繊維が三次元の分散構造
を有することを特徴とする金属繊維複合シート。[Means for Solving the Problems] In order to achieve the above object, the present invention has the following configuration. That is, (1) A composite sheet made of resin and metal fibers, characterized in that short metal fibers in the resin have a three-dimensional dispersed structure.
（２） 前記樹脂が、空隙を有する特許請求の範囲第
（１）項記載の金属繊維複合シートである。(2) The metal fiber composite sheet according to claim (1), wherein the resin has voids.
本発明でいう金属繊維は、通常の繊維形成性金属からな
る繊維を全て包含する。The metal fibers referred to in the present invention include all fibers made of ordinary fiber-forming metals.
たとえば、金、銀、銅、鉄、錫、鉛、ニッケル、アルミ
ニウム、モリブデン、タングステン、カドミウム、ビス
マス、亜鉛、ステンレス等、さらにこれらの金属からな
る′合金等があげられる。Examples include gold, silver, copper, iron, tin, lead, nickel, aluminum, molybdenum, tungsten, cadmium, bismuth, zinc, stainless steel, and alloys made of these metals.
これらの金属は溶融法、ビビリ振動法、線伸法などによ
り繊維化される。かかる繊維の太さを限定する必要はな
いが、充填密度や分散特性の点からすれば、直径約８〜
２００μ、ざらに好ましくは８〜１５０μ程度のものが
選択される。These metals are made into fibers by a melting method, a chatter vibration method, a wire drawing method, or the like. There is no need to limit the thickness of such fibers, but from the viewpoint of packing density and dispersion characteristics, diameters of approximately 8 to
A thickness of about 200μ, preferably about 8 to 150μ, is selected.
金属繊維の太さが均一な場合には、一般に８μ未満の細
いものでは粉状、球状のものに類似した挙動を示し、三
次元分散を形成しにくく、充填密度もあがらない欠点が
惹起する傾向を示し、また、２００μを越えると、太す
ぎて充填密度が低く硬くなる傾向を示し、ざらにピンホ
ールが発生し易くなる上に表面形状、外観も悪くなる傾
向がおる。When the thickness of metal fibers is uniform, generally thin ones less than 8μ exhibit behavior similar to powder-like or spherical ones, making it difficult to form three-dimensional dispersion and tending to have the disadvantage of not increasing the packing density. Moreover, if it exceeds 200 μm, it is too thick, tends to have a low packing density, becomes hard, tends to cause pinholes, and tends to deteriorate the surface shape and appearance.
ただし、かかる８μ未満の細い繊維であっても、比重と
樹脂溶液粘度の関係によって上記問題を克服できる場合
がおるので、−概に細い繊維は好ま′しくないことには
ならない。たとえば、細い繊維である程、樹脂溶液粘度
の低いものを選択するなどの手段によって改善される。However, even with such thin fibers of less than 8 μm, the above-mentioned problem can sometimes be overcome depending on the relationship between the specific gravity and the viscosity of the resin solution, so thin fibers are not undesirable in general. For example, the thinner the fibers, the lower the viscosity of the resin solution.
さらに２００μを越える太い繊維でも８μ未満を含めた
細い繊維と混合、併用する場合は、配合の仕方によって
、上記欠点を是正することができる場合がある。前輪か
かる混合の場合でも、直径約８〜２００μの範囲の中か
ら選択して配合併用することが好ましい。Furthermore, when thick fibers exceeding 200μ are mixed and used together with thin fibers including those less than 8μ, the above-mentioned drawbacks may be corrected depending on the blending method. Even in the case of such mixing with the front wheel, it is preferable to select from a range of about 8 to 200 μm in diameter and use them in combination.
かかる金属素材は要求される性質、たとえば導電性、電
磁波シール性、電波吸収性などでは、銀、銅、鉄、錫、
アルミ、ニッケル、亜鉛、ステンレスなどが、また、放
ｑ１線遮蔽性には、鉛、鉄、タングステンなど、中性子
遮蔽性には、カドニウム、ヒスマスなど、その種類によ
って適宜選択される。Such metal materials have the required properties such as conductivity, electromagnetic wave sealing properties, and radio wave absorption properties, such as silver, copper, iron, tin,
Aluminum, nickel, zinc, stainless steel, etc. are selected as appropriate depending on the type. For radiation shielding properties, lead, iron, tungsten, etc. are selected. For neutron shielding properties, cadmium, hismuth, etc. are selected as appropriate.
かかる金属繊維は長繊維状でもさしつかえないが、充填
密度や柔軟性、シート特性の点から短繊維の方が好まし
く、ざらにはシートの厚みよりも短いものが選択される
。特に繊維長りとシート厚み丁との関係がＬ≦ｆ２Ｔで
あるものが好ましい。Although such metal fibers may be in the form of long fibers, short fibers are preferable from the viewpoints of packing density, flexibility, and sheet properties, and those shorter than the thickness of the sheet are generally selected. In particular, it is preferable that the relationship between fiber length and sheet thickness is L≦f2T.
繊維長が長すぎると、ピンホールの発生にもつながる危
険がある。一般的には長くともｉｎｍ未満であるのが特
ｔこ好ましい。If the fiber length is too long, there is a risk that pinholes may occur. In general, it is particularly preferable that the length be less than inm at most.
かかる金属繊維を三次元分散構造で複合する樹脂として
は、天然ゴム、熱可塑性樹脂、特にエラスマーなど可撓
性に冨む樹脂が好ましい。７ＨＨ論柔軟性の要求されな
い用途では熱硬化性樹脂も適用可能である。The resin used to compose such metal fibers in a three-dimensionally dispersed structure is preferably a resin rich in flexibility such as natural rubber or a thermoplastic resin, particularly an elasmer. 7HH theory Thermosetting resins can also be used in applications where flexibility is not required.
具体的には、たとえば、天然ゴムの他、５ＢＲ１ＮＢＲ
，ＣＲ、シリコーンゴムなどの合成ゴムや、フッ素樹脂
、ポリ酢酸ビニール、ポリアクリル酸エステル、ポリビ
ニールアセタニル、ポリ塩化ビニール、ポリ塩化ビニリ
デン、ポリエチレン酢酸ビニール、ポリウレタン、ポリ
アミド、ポリエステルなどの熱可塑性合成樹脂などがあ
げられる。Specifically, for example, in addition to natural rubber, 5BR1NBR
, CR, silicone rubber, and other synthetic rubbers, and thermoplastic compounds such as fluororesin, polyvinyl acetate, polyacrylic ester, polyvinyl acetanyl, polyvinyl chloride, polyvinylidene chloride, polyethylene vinyl acetate, polyurethane, polyamide, and polyester. Examples include resin.
本発明の金属繊維複合シートにおいて重要なことは、第
１図の如く該樹脂中で金属繊維が上下、左−右にランダ
ムな三次元分散構造を有し、かつ該構造はシー１〜の縦
横、斜め方向のどの切断面を見ても同じであることであ
る。この点が、通常の金属繊維複合シート、すなわち、
第２図のような二次元平面分散（を造ものとの最も相違
するところである。What is important about the metal fiber composite sheet of the present invention is that the metal fibers have a random three-dimensional distribution structure vertically and horizontally in the resin as shown in FIG. , is the same no matter which cut plane is viewed in the diagonal direction. This point is important for ordinary metal fiber composite sheets, i.e.
The two-dimensional plane dispersion (as shown in Figure 2) is the most different from the structure.
この三次元分散構造が、樹脂中における金属繊維同志の
動きを柔軟にし、かつ、充填率を向上せしめ得たもので
ある。This three-dimensional dispersed structure makes the movement of the metal fibers in the resin flexible and improves the filling rate.
本発明において、かかる三次元分散構造に金属繊維を固
着する樹脂に空隙部分が存在する場合、柔軟性に耐久効
果が付加される。In the present invention, when voids exist in the resin that fixes the metal fibers to the three-dimensional dispersed structure, durability effects are added to the flexibility.
かかる空隙は通常扁平で不定形であり、かつ全体に微分
散している方が好ましい。その長径は大きくても１００
０μ、大多数は５００μ以下の程度である。この空隙は
金属繊維の近辺に樹脂が凝集することにより惹起される
ものであり、これにより該繊維の動きの自由度が増大す
る。その結果、柔軟性の耐久性が向上するものである。It is preferable that such voids are usually flat and irregular in shape, and are finely dispersed throughout. Its major axis is at most 100
0μ, and the majority is about 500μ or less. These voids are caused by the resin coagulating near the metal fibers, which increases the freedom of movement of the fibers. As a result, the durability of flexibility is improved.
かかる空隙はシート体積に対して、１０〜６０％、好ま
しくは２０〜５０％存在する。６０％を越える空隙率で
はシート特性を損う傾向がおる。Such voids exist in an amount of 10 to 60%, preferably 20 to 50%, based on the sheet volume. If the porosity exceeds 60%, the sheet properties tend to be impaired.
従来、ピンホールや充填率などの関係から、空隙が存在
しない方が好ましいとされていたものでおるが、かかる
常識を本発明は金属繊維を三次元構造にすることで打破
したものである。本発明の金属短繊維は三次元にかつラ
ンダムに分散されており、しかも金属繊維の樹脂に対す
る充填率（客足）は、低い充填率は勿論のこと、通常１
０Ｃ）〜３００％、好ましくは１５０〜２００９６まで
高くすることができるものである。これは通常の練り込
み（混合組成物）の場合での、金属繊維の樹脂に対する
充填率（容量）が精々４３％以下であることを考えると
格段の相違である。Conventionally, it has been thought that it is preferable to have no voids due to pinholes, filling ratios, etc., but the present invention breaks this conventional wisdom by making metal fibers into a three-dimensional structure. The short metal fibers of the present invention are three-dimensionally and randomly dispersed, and the filling ratio (customer traffic) of the metal fibers to the resin is not only low but usually 1.
0C) to 300%, preferably 150 to 20096. This is a significant difference considering that in the case of normal kneading (mixed composition), the filling ratio (capacity) of metal fibers to resin is at most 43% or less.
本発明の金属繊維複合シートの″！Ａ造法の一例につい
て、次に説明する。An example of the "!A manufacturing method for the metal fiber composite sheet of the present invention will be described next.
まず樹脂溶液が樹脂の溶媒を用いて調整するが、この溶
液は純粋な溶液系でも、エマルジョン系でも、いずれで
もさしつかえない。かかる溶液には各種の添加剤を添加
してもよい。たとえば、樹脂溶液粘度調整剤などが必要
に応じて配合される。First, a resin solution is prepared using a resin solvent, and this solution may be either a pure solution type or an emulsion type. Various additives may be added to such a solution. For example, a resin solution viscosity modifier or the like is added as necessary.
溶液粘度は金属の比重や繊維の太さなどによって適宜選
択されるが、要するに金属繊維が少なくとも沈降する程
度の粘度に調整される。The viscosity of the solution is appropriately selected depending on the specific gravity of the metal, the thickness of the fibers, etc., but in short, it is adjusted to a viscosity that at least allows the metal fibers to settle.
本発明においては、一般的にはｉ ｏｏｏ〜３００００
Ｃｐ 。In the present invention, generally i ooo ~ 30000
Cp.
好ましくは５０００〜２００００Ｃｐの範囲のものが適
用される。Preferably, a range of 5,000 to 20,000 Cp is applied.
、樹脂溶液中の樹脂濃度は通常６０重最％以下、好まし
くは１５〜５０重量％で、要は金属繊維を十分に固着し
得る濃度に調整する。The resin concentration in the resin solution is usually at most 60% by weight or less, preferably from 15 to 50% by weight, and is essentially adjusted to a concentration that can sufficiently fix the metal fibers.
かかる樹脂溶液をシート状物上に付与し、該溶液からな
る粘稠被膜層を形成する。This resin solution is applied onto a sheet-like object to form a viscous film layer made of the solution.
かかる付与方法としては、浸漬法、パディング法、コー
ティング法、スプレー法などいずれでもさしつかえない
が、通常コーティング法が適用される。かかるコーティ
ング法としては、たとえばナイフコーティング、ロニラ
コーティングなどの方法がある。該樹脂溶液の付与量は
、所望する性能ならびに柔軟性などによって、適宜設定
される。たとえば、柔軟性と充填率を同時に望む場合に
は、限界はあるが、樹脂量は比較的少なく粘度のやや高
い系が適用され、充填聞のみを問題にする倍は樹脂量は
多く、比較的粘度の低い系のものが適用される。The application method may be a dipping method, a padding method, a coating method, a spray method, or the like, but a coating method is usually applied. Examples of such coating methods include knife coating and ronilla coating. The amount of the resin solution applied is appropriately set depending on desired performance and flexibility. For example, if flexibility and filling rate are desired at the same time, a system with a relatively small amount of resin and a slightly high viscosity is applied, although there are limits; A low viscosity type is applied.
該樹脂溶液をシート基布上にコーティングした後、金属
短繊維を該コーティング層上に散布する。After coating the resin solution on the sheet base fabric, short metal fibers are sprinkled on the coating layer.
この散布方法が重要であり、コーティング層上に均一に
、方便なく散布する。この場合、一度に散布しないで、
経時的に少しずつ方便なく散イ［することが、三次元構
造に好ましい結果を与える。This method of dispersion is important, and the dispersion can be done uniformly and conveniently on the coating layer. In this case, do not spray all at once;
Dispersing it gradually and conveniently over time gives favorable results to the three-dimensional structure.
経時的に散布することで、金属繊維を逐次沈降させるも
のである。この時間のずれが空隙率、ひいては柔軟性に
大きく影響を与えるものである。勿論、かかる散布を該
樹脂の硬化、乾燥前に完了するのが、本発明においては
好ましい。Spraying over time causes the metal fibers to settle out one after another. This time lag greatly affects the porosity and, ultimately, the flexibility. Of course, it is preferable in the present invention to complete such spraying before curing and drying the resin.
かかる散布を数段階に分けて行うことも可能である。そ
の場合、第２回目以降の散布の際に、予め樹脂溶液を新
に付与してもさしつかえない。It is also possible to carry out such dispersion in several stages. In that case, a new resin solution may be applied in advance during the second and subsequent spraying.
（実施例）
実施例１
溶融紡糸法によって、直径３０μ、繊維長０．５ｍｍの
鉛短繊維を用意した。(Examples) Example 1 Short lead fibers having a diameter of 30 μm and a fiber length of 0.5 mm were prepared by a melt spinning method.
別に、ポリスチル系繊維織物の表面上に、粘度１２００
０ｃｌ） ＣＭ Ｂ型粘度計、２０’Ｃ）のポリアク
リル酸エステルのエマルジョン（ポリマー濃度：４５％
）をナイフコーテイイング法により、０．５ｍｍの厚さ
にコーティング塗イＦしたシートを用意した。Separately, on the surface of the polystyrene fiber fabric, a viscosity of 1200
0cl) CM B type viscometer, 20'C) polyacrylic acid ester emulsion (polymer concentration: 45%
) was coated to a thickness of 0.5 mm using a knife coating method to prepare a sheet.
このシートのコーティング屈面に、前記鉛短繊維を徐々
に散イ［した。The short lead fibers were gradually scattered on the coated surface of this sheet.
散布は、金網フルイ（２０メツシユ）に該短繊維を通し
ながら、均一に、かつ経時的に落下させて、約２ｍｍの
厚さになるように調整した（重囲割合＝金属繊１１ｔ：
樹脂＝８：２）。The scattering was carried out by passing the short fibers through a wire mesh sieve (20 meshes) and dropping them uniformly and over time, adjusting the thickness to about 2 mm (heavy coverage ratio = 11 tons of metal fibers:
resin = 8:2).
散イ「終了後、該シート基布に微撮動を与え、エマルジ
ョン中に、該金属短繊維を沈降させた。After the scattering was completed, slight motion was applied to the sheet base fabric to cause the short metal fibers to settle in the emulsion.
このシートを１２０’Ｃで１０分間、乾燥し、固着した
。次いで、該シートの金属繊維堆積面をブラシツシング
して余剰の金属繊維を除去した。The sheet was dried and fixed at 120'C for 10 minutes. Next, the surface of the sheet on which the metal fibers were deposited was brushed to remove excess metal fibers.
かくして得られた金属繊維複合シートをクリアランスが
０．５ｍｍのニップロールに通して厚さ１ｍｍのシート
にした。The metal fiber composite sheet thus obtained was passed through nip rolls with a clearance of 0.5 mm to form a sheet with a thickness of 1 mm.
このシートの断面における樹脂中での鉛繊維の構造を電
子顕微鏡で観察して、第１図に模式図で示した。このシ
ートの評価結果は表１に示した。The structure of lead fibers in the resin in the cross section of this sheet was observed using an electron microscope, and is shown schematically in FIG. The evaluation results of this sheet are shown in Table 1.
実施例２〜６
実施例１において、鉛短繊維の太さまたは長さを次のよ
うに変更した。その他の方法および条件得られたシート
の評価を表１に示す。Examples 2 to 6 In Example 1, the thickness or length of the short lead fibers was changed as follows. Other methods and conditions Evaluation of the obtained sheets is shown in Table 1.
比較例１〜３
実施例１と同じ鉛短繊維８０部を塩化ビニル樹脂１２．
５部、可塑剤７．５部と混合して、バンバリーミキサ−
により混練した。この混合樹脂をロールに通して０．５
ｍｍの厚さのシートをつくり、このシートを２枚積層し
て厚さ１ｍ１１１の金属繊維複合シー］−を作った。（
比較例１）
このシートにおりる鉛繊維の配向構造を電子顕微鏡で１
ｌ１２Ｆ！して、第２図に模式図で示した。Comparative Examples 1 to 3 80 parts of the same short lead fiber as in Example 1 was mixed with 12 parts of vinyl chloride resin.
5 parts of plasticizer and 7.5 parts of plasticizer in a Banbury mixer.
Kneaded by Pass this mixed resin through a roll and
A sheet with a thickness of mm was made, and two of these sheets were laminated to make a metal fiber composite sheet with a thickness of 1 m111. (
Comparative Example 1) The oriented structure of lead fibers in this sheet was observed using an electron microscope.
l12F! This is shown schematically in FIG.
次に、実施例１において、鉛短繊維の代りに、鉛粒子（
直径０．５ｍｍ） 、ならびに鉛パウダー（平均粒径１
０μ）に変更したものを用い、それぞれ比較例２、比較
例３とした。その他の方法および条件は同一にして金属
複合シートを形成した。Next, in Example 1, lead particles (
diameter 0.5 mm), and lead powder (average particle size 1
Comparative Example 2 and Comparative Example 3 were prepared by using the following samples. Other methods and conditions were the same to form metal composite sheets.
結果を表１に示す。The results are shown in Table 1.
表１から明らかなように、実施例１〜６のシートは柔軟
性、耐屈曲性の点で、従来技術である、いずれの比較例
と対比しても優れていることがわかる。ただし、Ｘ線遮
蔽性の点で比較例１のシートがかなりのレベルを示した
ものの、柔軟性も、耐屈曲性も劣る七ロイものであり、
商品展開の上から自由度のないものであった。また、比
較例２．３のものはＸ線遮蔽性が極端に悪く、柔軟性や
耐屈曲性を云々する前に、商品価値のないものであった
。As is clear from Table 1, the sheets of Examples 1 to 6 are superior in terms of flexibility and bending resistance compared to any of the comparative examples of the prior art. However, although the sheet of Comparative Example 1 showed a considerable level of X-ray shielding property, it was made of 7-Royance and had poor flexibility and bending resistance.
There was no freedom in terms of product development. Moreover, the materials of Comparative Examples 2 and 3 had extremely poor X-ray shielding properties, and had no commercial value, even when considering their flexibility and bending resistance.
［発明の効果］
本発明は、導電性、電磁波遮蔽性、熱伝導性、防音性、
高比重性など金属の有する多機能特性を良好に発揮し得
る柔軟性に富んだシートを提供するものである。それも
極めて柔軟なシートであるために、従来この種の金属複
合シートの用途において、適用不可と考えられていた用
途にも何の不都合もなく応用、展開し１ｑるという自由
度の高い素材を提供するものである。[Effects of the Invention] The present invention has electrical conductivity, electromagnetic wave shielding properties, thermal conductivity, soundproofing properties,
The object of the present invention is to provide a highly flexible sheet that can satisfactorily exhibit the multifunctional properties of metals such as high specific gravity. Since it is an extremely flexible sheet, it is a highly flexible material that can be applied and expanded without any inconvenience to applications that were previously thought to be impossible for this type of metal composite sheet. This is what we provide.
すなわち、本発明の特徴は、樹脂中で金属繊維が三次元
の方向にランダムに充填されている点にあるが、ざらに
該繊維は樹脂表面に突出した状態で存在させることもで
き、すなわら、金属繊維からなる立毛を樹脂表面に形成
させた状態のものも形成し１ｎる特徴を有する。たとえ
ば、かかる表面’４）ＡＭをローラで圧延すると、従来
技術では考えられなかった高性能の、しかも柔軟な金属
繊維複合シートが得られる。That is, the feature of the present invention is that the metal fibers are randomly filled in the resin in a three-dimensional direction, but the fibers can also be present in a state protruding from the resin surface. It also has the characteristics of having raised fluff made of straw or metal fibers formed on the resin surface. For example, when such surface '4) AM is rolled with a roller, a metal fiber composite sheet with high performance and flexibility unimaginable in the prior art can be obtained.
第１図は本発明の金属繊維複合シートにあける樹脂中で
の金属繊維構造を示す模式図であり、第２図は従来の圧
延法による金属繊維複合シートにおける樹脂中での金属
繊維構造を示す模式図でおる。
図中
１：金ｒｉｒＳ短繊維
２：樹脂
３：空隙Fig. 1 is a schematic diagram showing the metal fiber structure in the resin formed in the metal fiber composite sheet of the present invention, and Fig. 2 shows the metal fiber structure in the resin in the metal fiber composite sheet formed by the conventional rolling method. A schematic diagram. In the figure 1: gold rirS short fiber 2: resin 3: void
Claims (2)
該樹脂中の短繊維状の金属繊維が三次元の分散構造を有
することを特徴とする金属繊維複合シート。(1) In a composite sheet made of resin and metal fibers,
A metal fiber composite sheet characterized in that short metal fibers in the resin have a three-dimensional dispersed structure.
）項記載の金属繊維複合シート。(2) The resin has voids in claim 1 (1).
) The metal fiber composite sheet described in item 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61101916A JPH0776796B2 (en) | 1986-05-06 | 1986-05-06 | Metal fiber composite sheet and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61101916A JPH0776796B2 (en) | 1986-05-06 | 1986-05-06 | Metal fiber composite sheet and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62259097A true JPS62259097A (en) | 1987-11-11 |
| JPH0776796B2 JPH0776796B2 (en) | 1995-08-16 |
Family
ID=14313232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61101916A Expired - Lifetime JPH0776796B2 (en) | 1986-05-06 | 1986-05-06 | Metal fiber composite sheet and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0776796B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0862388A (en) * | 1994-08-26 | 1996-03-08 | Dainippon Printing Co Ltd | X-ray shielding laminated body |
| JP2002365394A (en) * | 2001-06-05 | 2002-12-18 | Sanko Kasei Kogyo Kk | Radiation shielding body and manufacturing method therefor |
| JP2002365393A (en) * | 2001-06-05 | 2002-12-18 | Sanko Kasei Kogyo Kk | Radiation shielding body and manufacturing method of the shielding body |
| JP2003287590A (en) * | 2003-05-09 | 2003-10-10 | Sumitomo Electric Ind Ltd | Radiation shield material |
| WO2004084234A1 (en) * | 2003-03-18 | 2004-09-30 | Nippon Tungsten Co., Ltd. | Shield material |
| JPWO2013039195A1 (en) * | 2011-09-14 | 2015-03-26 | グンゼ株式会社 | Radiation protection fabric |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS543857A (en) * | 1977-06-13 | 1979-01-12 | Toray Ind Inc | Flexible high-specific gravity sheet |
-
1986
- 1986-05-06 JP JP61101916A patent/JPH0776796B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS543857A (en) * | 1977-06-13 | 1979-01-12 | Toray Ind Inc | Flexible high-specific gravity sheet |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0862388A (en) * | 1994-08-26 | 1996-03-08 | Dainippon Printing Co Ltd | X-ray shielding laminated body |
| JP2002365394A (en) * | 2001-06-05 | 2002-12-18 | Sanko Kasei Kogyo Kk | Radiation shielding body and manufacturing method therefor |
| JP2002365393A (en) * | 2001-06-05 | 2002-12-18 | Sanko Kasei Kogyo Kk | Radiation shielding body and manufacturing method of the shielding body |
| WO2004084234A1 (en) * | 2003-03-18 | 2004-09-30 | Nippon Tungsten Co., Ltd. | Shield material |
| JPWO2004084234A1 (en) * | 2003-03-18 | 2006-06-29 | 日本タングステン株式会社 | Shielding material |
| US7518137B2 (en) | 2003-03-18 | 2009-04-14 | Nippon Tungsten Co. Ltd | Shield material |
| JP2003287590A (en) * | 2003-05-09 | 2003-10-10 | Sumitomo Electric Ind Ltd | Radiation shield material |
| JPWO2013039195A1 (en) * | 2011-09-14 | 2015-03-26 | グンゼ株式会社 | Radiation protection fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0776796B2 (en) | 1995-08-16 |
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