JPH10278166A - Heat-resistant insulating laminate - Google Patents
Heat-resistant insulating laminateInfo
- Publication number
- JPH10278166A JPH10278166A JP9054897A JP9054897A JPH10278166A JP H10278166 A JPH10278166 A JP H10278166A JP 9054897 A JP9054897 A JP 9054897A JP 9054897 A JP9054897 A JP 9054897A JP H10278166 A JPH10278166 A JP H10278166A
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- JP
- Japan
- Prior art keywords
- powder
- heat
- sheet
- resistant
- weight
- 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
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、高温の炎や熱に
耐える耐熱性と共に電気絶縁性を有する耐熱・絶縁性積
層体およびその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-resistant / insulating laminate having electrical insulation as well as heat resistance against high-temperature flames and heat, and a method for producing the same.
【０００２】[0002]
【従来の技術】一般に、耐熱性および絶縁性に優れたシ
ートとして知られるアスベストシートは、解綿された石
綿とセメントを乾式混合した後、水を添加してスラリー
状に混合し、抄取機のロール上で所要の厚さになるまで
重ね合せて平板状に成形するか、または金型に充填して
所要形状に成形される。2. Description of the Related Art Generally, an asbestos sheet known as a sheet having excellent heat resistance and insulation properties is obtained by dry-mixing defibrated asbestos and cement, then adding water and mixing the slurry into a slurry. On a roll to form a flat plate, or by filling in a mold to form a desired shape.
【０００３】また、カーボン繊維などの無機繊維製のシ
ート状補強材に対して、粘結剤であるリン酸アルミニウ
ムと、酸化アルミニウム、水酸化アルミニウム、カオリ
ンなどの無機粉末と、熱硬化性樹脂とを有機溶媒と共に
流動化した組成物を含浸し、それを乾燥させた後、複数
枚積層して加熱加圧下で一体化する耐熱性絶縁体の製造
方法が、特開平５−１８２５４７号公報に記載されてい
る。[0003] Further, a sheet-like reinforcing material made of inorganic fiber such as carbon fiber, aluminum phosphate as a binder, inorganic powder such as aluminum oxide, aluminum hydroxide, kaolin, and thermosetting resin. Is impregnated with a composition fluidized together with an organic solvent, dried, dried, then laminated under heat and pressure to produce a heat-resistant insulator, which is disclosed in Japanese Patent Application Laid-Open No. 5-282547. Have been.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記した従来
の耐熱・絶縁性積層体のうち、耐熱性の絶縁材料として
のアスベスト（石綿）は、製造者および需要者の健康を
阻害する物質として懸念されており、その使用が制約さ
れている。However, among the above-mentioned conventional heat-resistant and insulating laminates, asbestos (asbestos) as a heat-resistant insulating material is a concern as a substance that inhibits the health of manufacturers and consumers. And its use is restricted.
【０００５】また、シート状補強材の表面に保持させる
成分のうち、有機質のものは高温の熱エネルギーに耐え
ることが困難である。[0005] Among the components held on the surface of the sheet-like reinforcing material, organic ones are difficult to withstand high-temperature thermal energy.
【０００６】また、シート状補強材に無機・有機質複合
の流動性組成物を含浸させたものを積層単位とする従来
の耐熱性絶縁体の製造方法では、耐熱温度が８００〜９
００℃程度の耐熱性しか得られず、それ以上の耐熱性が
要求される耐熱性絶縁体は得られなかった。In a conventional method for producing a heat-resistant insulator in which a sheet-like reinforcing material impregnated with a fluid composition of an inorganic / organic composite is used as a laminate unit, a heat-resistant temperature of 800 to 9 is used.
A heat resistance of only about 00 ° C. was obtained, and a heat resistant insulator requiring higher heat resistance was not obtained.
【０００７】そこで、この発明の課題は上記した問題点
を解決し、製造者および需要者の健康を阻害することな
く安全に製造および使用ができる耐熱・絶縁性積層体と
し、しかも従来品より遙に優れた耐熱性を有する耐熱・
絶縁性積層体を提供することである。Accordingly, an object of the present invention is to solve the above-mentioned problems and provide a heat-resistant / insulating laminate which can be safely manufactured and used without impairing the health of manufacturers and consumers, and which is far more conventional than conventional products. Heat resistance with excellent heat resistance
An object of the present invention is to provide an insulating laminate.
【０００８】[0008]
【課題を解決するための手段】上記の課題を解決するた
め、この発明においては、カーボン繊維または酸化アル
ミニウム繊維からなるシート状補強材の表面に、熱硬化
性樹脂粉末１００重量部に対して耐熱性無機質粉末もし
くは黒鉛化された有機質粉末または両者併用した粉末を
３０〜３５０重量部含む混合物層を重ねたシート状素材
を設け、このシート状素材を複数枚重ねて融着一体化し
てなる耐熱・絶縁性積層体としたのである。In order to solve the above-mentioned problems, according to the present invention, the surface of a sheet-like reinforcing material made of carbon fiber or aluminum oxide fiber is heat resistant to 100 parts by weight of thermosetting resin powder. A sheet material in which a mixture layer containing 30 to 350 parts by weight of a conductive inorganic powder or a graphitized organic powder or a powder in which both are used is provided, and a plurality of such sheet materials are stacked and fused and integrated. This was an insulating laminate.
【０００９】または、カーボン繊維または酸化アルミニ
ウム繊維からなるシート状補強材の表面に、未硬化の熱
硬化性樹脂粉末１００重量部に対して耐熱性無機質粉末
もしくは黒鉛化された有機質粉末または両者併用した粉
末を３０〜３５０重量部含む混合物粉末を付着させると
共に、加熱加圧して全重量の３５〜９７重量％の混合物
が表層に仮着されたシート状素材を形成し、次いでこの
シート状素材を複数枚重ねて加熱加圧により融着一体化
することにより耐熱・絶縁性積層体を製造したのであ
る。Alternatively, a heat-resistant inorganic powder or a graphitized organic powder or a combination of both is used on the surface of a sheet-like reinforcing material made of carbon fiber or aluminum oxide fiber, based on 100 parts by weight of uncured thermosetting resin powder. A mixture powder containing 30 to 350 parts by weight of the powder is adhered, and heated and pressed to form a sheet material having a mixture of 35 to 97% by weight of the total weight temporarily attached to the surface layer. The heat-insulating laminate was manufactured by stacking the sheets and fusing them together by heating and pressing.
【００１０】この発明の耐熱・絶縁性積層体は、シート
状補強剤を構成する素材として、カーボン繊維または酸
化アルミニウム繊維を採用したので、アスベストを採用
していた従来の耐熱性絶縁体のような製造者および需要
者の健康を阻害するという欠点がなくなる。The heat-resistant / insulating laminate of the present invention employs carbon fiber or aluminum oxide fiber as a material constituting the sheet-like reinforcing agent. The disadvantage of compromising the health of manufacturers and consumers is eliminated.
【００１１】また、シート状補強材に保持させる物質と
して耐熱性無機粉末以外に黒鉛化された有機質粉末を採
用したので、単なる有機質粉末を配合した従来品に比べ
て耐熱性が高まる。In addition, since a graphitized organic powder is used in addition to the heat-resistant inorganic powder as a substance to be held by the sheet-like reinforcing material, the heat resistance is increased as compared with a conventional product in which a simple organic powder is blended.
【００１２】また、シート状補強材の表面に、熱硬化性
樹脂粉末と共に所定量の耐熱性無機質粉末もしくは黒鉛
化された有機質粉末または両者併用した混合物粉末を付
着させたシート状素材を形成し、これを積層し一体化し
たので、シート状補強材に対する混合物の付着量が液体
の混合物を補強繊維に含浸させた場合の保持量に比べて
格段に多くなり、具体的にはシート状補強材を含めた全
重量の３５〜９７重量％の混合物が保持されるようにな
るので、耐熱・絶縁性積層体の耐熱性が格段に向上す
る。A sheet-like material is formed by adhering a predetermined amount of heat-resistant inorganic powder, graphitized organic powder, or a mixture of both powders together with a thermosetting resin powder on the surface of the sheet-like reinforcing material; Since this was laminated and integrated, the amount of the mixture adhering to the sheet-like reinforcing material was significantly larger than the holding amount when the liquid mixture was impregnated into the reinforcing fibers. Since a mixture of 35 to 97% by weight of the total weight is maintained, the heat resistance of the heat-resistant and insulating laminate is remarkably improved.
【００１３】[0013]
【発明の実施の形態】この発明におけるシート状補強材
を構成するカーボン繊維または酸化アルミニウム繊維
は、特に繊維の径や長さを限定して採用したものではな
い。しかし、通常は、繊維径２〜１０μｍ、繊維長さ２
〜２００ｍｍのものを採用することが実用的であり、か
つ強度的にも好ましい結果が得られる。BEST MODE FOR CARRYING OUT THE INVENTION The carbon fiber or aluminum oxide fiber constituting the sheet-like reinforcing material in the present invention is not particularly limited in diameter or length of the fiber. However, usually, the fiber diameter is 2 to 10 μm and the fiber length is 2
It is practical to employ the one having a thickness of 200 mm, and a favorable result in terms of strength is obtained.
【００１４】シート状補強材の具体的な形態としては、
多数のフィラメントをそろえて連続した繊維束としたス
トランドでマットやクロス（編・織物）に形成したも
の、またはフェルトなどの不織布または抄製された紙に
類似する形態のもの（例えばカーボンペーパー等）など
のシート状のものである。As a specific form of the sheet-like reinforcing material,
A mat or cloth (knitted or woven fabric) formed by strands of a continuous fiber bundle with a number of filaments aligned, or a nonwoven fabric such as felt or a form similar to paper made (for example, carbon paper) And the like.
【００１５】また、この発明に用いる熱硬化性樹脂は、
特にその種類を限定されたものではなく、例えばフェノ
ール樹脂、エポキシ樹脂、不飽和ポリエステル樹脂、シ
リコーン樹脂、ポリイミド樹脂、無機系バインダーなど
が挙げられる。このような熱硬化性樹脂は、未硬化の粉
末状原料を使用するが、その粒子径は、２０〜３２５メ
ッシュ（すなわち、４３〜８３３μｍの網目を通過する
粒子径のもの）のものを採用すると、シート状補強材に
所要量を調整して保持しやすく、また、よく均一分散し
た状態で保持される点でも好ましい。The thermosetting resin used in the present invention is:
The type is not particularly limited, and examples thereof include a phenol resin, an epoxy resin, an unsaturated polyester resin, a silicone resin, a polyimide resin, and an inorganic binder. As such a thermosetting resin, an uncured powdery raw material is used, and a particle diameter of 20 to 325 mesh (that is, a particle diameter passing through a network of 43 to 833 μm) is adopted. It is also preferable in that the required amount is easily adjusted and held in the sheet-like reinforcing material, and the sheet-like reinforcing material is held in a well-dispersed state.
【００１６】また、この発明に用いる耐熱性無機質粉末
は、１５００℃以上の融点（または軟化点）を有する耐
熱性があればよく、特にその他の条件を限定されたもの
ではない。そのような耐熱性無機質粉末（括弧内は融
点）の具体例としては、酸化マグネシウム（２８００
℃）、シリカ（１６００℃）、水酸化アルミニウム、酸
化アルミニウム（２０１５℃）などが挙げられる。この
ような無機粉末は、粉末状のものを製造原料として使用
するが、その粒子径は、５０〜３２５メッシュ（すなわ
ち、４０〜３００μｍの網目を通過する粒子径のもの）
が好ましい。The heat-resistant inorganic powder used in the present invention only needs to have heat resistance having a melting point (or softening point) of 1500 ° C. or more, and other conditions are not particularly limited. Specific examples of such heat-resistant inorganic powders (the melting point in parentheses) include magnesium oxide (2800
° C), silica (1600 ° C), aluminum hydroxide, aluminum oxide (2015 ° C) and the like. As such an inorganic powder, a powdery material is used as a raw material for production, and the particle size is 50 to 325 mesh (that is, a particle size passing through a network of 40 to 300 μm).
Is preferred.
【００１７】そして、熱硬化性樹脂粉末１００重量部に
対する耐熱性無機質粉末の配合割合は、３０〜３５０重
量部である。この所定範囲未満の配合量では、積層板の
耐熱・耐炎性が所期した性能より低下するので好ましく
なく、また、前記所定範囲を越える配合量にすると、そ
の全量をシート状補強材に付着させ難くなるので好まし
くない。The mixing ratio of the heat-resistant inorganic powder to 100 parts by weight of the thermosetting resin powder is 30 to 350 parts by weight. If the compounding amount is less than the predetermined range, the heat resistance and flame resistance of the laminated plate are not preferable because the performance is lower than expected.If the compounding amount exceeds the predetermined range, the entire amount is adhered to the sheet-like reinforcing material. It is not preferable because it becomes difficult.
【００１８】上記したような材料の粉状の混合物は、シ
ート状補強材の表面に堆積するように付着させ、混合物
の熱硬化性樹脂粉末が半硬化状態になることによって耐
熱性無機質粉末および黒鉛化された有機質粉末を結着
し、これらをまとめてシート状補強材に付着させてシー
ト状に一体化される程度に加熱する。具体的には、加熱
・加圧ロール等（カレンダー加工）によりシート状素材
の表面に対して垂直方向から加圧して混合物粉末をシー
ト状補強材に仮着させる。The powdery mixture of the above-mentioned materials is adhered so as to be deposited on the surface of the sheet-like reinforcing material, and the thermosetting resin powder of the mixture becomes semi-cured so that the heat-resistant inorganic powder and the graphite are mixed. The formed organic powders are bound, and these are collectively attached to a sheet-like reinforcing material and heated to such an extent that they are integrated into a sheet. Specifically, the mixture powder is temporarily attached to the sheet-like reinforcing material by applying pressure from a direction perpendicular to the surface of the sheet-like material by a heating / pressing roll or the like (calendering).
【００１９】その際、全重量の３５〜９７重量％の混合
物層が表層に仮着されたシート状素材を形成する。混合
物量が３５重量％未満の少量では、所期した耐熱性が得
られず、９７重量％を越える多量の混合物を付着させる
と、ハンドリング性（取扱い性）が低下して好ましくな
いからである。At this time, a sheet-like material is formed in which a mixture layer of 35 to 97% by weight of the total weight is temporarily attached to the surface layer. If the amount of the mixture is less than 35% by weight, the desired heat resistance cannot be obtained, and if a large amount of the mixture exceeding 97% by weight is adhered, the handling property (handling property) deteriorates, which is not preferable.
【００２０】この発明に用いる黒鉛化された有機質粉末
は、フェノール樹脂、ポリイミド樹脂、木質材料、セル
ロース、フラン樹脂、ポリアクリロニトリル（ＰＡ
Ｎ）、ピッチ、レーヨンなどの有機質原料を２０００〜
３０００℃程度の高温に加熱してその一部または全体を
黒鉛（グラファイト）化したものである。The graphitized organic powder used in the present invention includes phenolic resin, polyimide resin, woody material, cellulose, furan resin, polyacrylonitrile (PA
N), pitch, rayon and other organic raw materials
It is heated to a high temperature of about 3000 ° C., and a part or the whole thereof is made into graphite (graphite).
【００２１】シート状補強材および混合物層からなるシ
ート状素材を複数枚重ねて加熱加圧により積層一体化す
るときの加圧条件は、２０〜１５０ｋｇｆ／ｃｍ2 程度
が適当である。２０ｋｇｆ／ｃｍ2 未満の低圧力では耐
熱・絶縁性積層体として良好な高密度品が得られない。
なお、１５０ｋｇｆ／ｃｍ2 を越える高圧力でも積層成
形は可能であるが、製品に歪みが生じる場合もあるので
実用上好ましくない。When a plurality of sheet-like materials composed of a sheet-like reinforcing material and a mixture layer are stacked and laminated and integrated by heating and pressing, the pressure condition is suitably about 20 to 150 kgf / cm 2 . At a low pressure of less than 20 kgf / cm 2 , a good high-density product cannot be obtained as a heat-resistant / insulating laminate.
Although lamination molding is possible even at a high pressure exceeding 150 kgf / cm 2 , it is not practically preferable because the product may be distorted.
【００２２】また、その他の成形条件は、加熱温度が８
０〜１７０℃、加熱時間が３０〜１５０分である。この
所定範囲未満の条件では、耐熱・絶縁特性が安定して得
難く、前記所定範囲を越える条件でもそれ以上の好結果
が得られず、製造効率の点で実用性を失すると考えられ
るからである。The other molding conditions are as follows.
The heating time is 0 to 170 ° C and the heating time is 30 to 150 minutes. Under the conditions below this predetermined range, it is difficult to stably obtain heat resistance and insulation properties, and even under the conditions above the predetermined range, no further good results can be obtained, and practicality is considered to be lost in terms of manufacturing efficiency. is there.
【００２３】[0023]
【実施例】耐熱・絶縁性積層体およびその製造工程の実
施例を、以下に添付図面に基づいて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a heat-resistant / insulating laminate and a manufacturing process thereof will be described below with reference to the accompanying drawings.
【００２４】〔実施例１〕図１に示すように、実施例１
では、巻き出し用ロール１に巻回したカーボンペーパー
（オリベスト社製：カーボンペーパー、幅１０５ｃｍ）
からなるシート状補強材２を一定速度で巻き出し、その
下面にロール体３から同じ速度で巻き出したポリエチレ
ンテレフタレート（以下、ＰＥＴと略称する。）フィル
ム４を重ねて水平方向に走行させ、枠型容器５の下面に
摺接させながら走行させた。[Embodiment 1] As shown in FIG.
Then, the carbon paper wound around the unwinding roll 1 (manufactured by Olivet Co., Ltd .: carbon paper, width 105 cm)
A polyethylene terephthalate (hereinafter abbreviated as PET) film 4 unwound from the roll body 3 at the same speed is superimposed on the lower surface of the sheet-shaped reinforcing material 2 and is run horizontally. The mold 5 was run while sliding on the lower surface.
【００２５】この枠型容器５は、シート状補強材 と略
同じ幅に形成された方形状のものであって、その進行方
向の下流側の側壁下縁部分にはシートの幅を横切るスリ
ット６を形成し、ここから均等な厚み（０．３〜５ｍ
ｍ）で混合物粉末７を連続的に載せるようにした。The frame-shaped container 5 has a rectangular shape formed to have substantially the same width as the sheet-like reinforcing material, and a slit 6 traversing the width of the sheet is provided at the lower edge of the side wall on the downstream side in the traveling direction. Is formed, and an even thickness (0.3 to 5 m
In m), the mixture powder 7 was continuously placed.
【００２６】そして、枠型容器５の上方にはホッパー８
を配置し、さらにその上方には混合物粉末の供給装置９
を設けて連続的に混合物粉末７を供給する。実施例に使
用した混合物粉末７の組成は、シリコーンレジン（例示
できる好ましい粒径４０〜８３３μｍ）１００重量部に
対して、酸化マグネシウム粉末（５０メッシュを通過す
るもの）２００重量部とした。A hopper 8 is provided above the frame type container 5.
And further above the supply device 9 for the mixture powder.
And the mixture powder 7 is continuously supplied. The composition of the mixture powder 7 used in the examples was 200 parts by weight of magnesium oxide powder (one passing through a 50 mesh) with respect to 100 parts by weight of silicone resin (preferable particle size of 40 to 833 μm).
【００２７】なお、前記したスリット６は、枠型容器５
の下流側の側壁下縁を上下方向にスライド可能に形成
し、その高さを変えることによって所要のスリット幅に
調整することもできる。It should be noted that the above-mentioned slit 6 is
The lower edge of the downstream side wall is formed so as to be slidable in the vertical direction, and the height of the lower side wall can be adjusted to a required slit width by changing the height.
【００２８】このようにしてシート状補強材２の上面に
混合物粉末７を層状に載せた状態のものは、次にＰＥＴ
フィルム１０を巻き付けたロール体１１から巻き出した
ＰＥＴフィルム１０を被せて４層構造（ＰＥＴフィルム
／混合物粉末層／シート状補強材／ＰＥＴフィルム）と
し、これを一対の加熱ロール１２、１３および一対の加
熱ロール１３と加圧ロール１４の間を連続的に通過させ
て各層が一体的に仮着されたシート状素材１５を形成し
た。なお、加熱ロール１２、１３の温度とロールの回転
速度を調節することにより、これらのロールを通過する
際の加熱・加圧条件を１５０℃で４０秒とした。In the state in which the mixture powder 7 is layered on the upper surface of the sheet-like reinforcing material 2 in this manner, PET is next used.
A four-layer structure (PET film / mixture powder layer / sheet-like reinforcing material / PET film) is formed by covering the PET film 10 unwound from the roll body 11 around which the film 10 is wound. Was continuously passed between the heating roll 13 and the pressure roll 14 to form a sheet-like material 15 to which each layer was temporarily attached. By adjusting the temperature of the heating rolls 12 and 13 and the rotation speed of the rolls, the heating and pressing conditions when passing through these rolls were set to 150 ° C. for 40 seconds.
【００２９】次に、シート状素材１５は、裁断機１６に
よって所定の大きさに切断し、その複数枚を積み重ねて
ホットプレス機１７に収容し、１００ｋｇｆ／ｃｍ2 、
１６０℃で９０分の条件で加熱加圧により融着一体化
し、耐熱・絶縁性積層板を得た。なお、ホットプレス機
１７は、複数組の加熱・加圧盤１８の間に複数枚（例え
ば１〜１０枚）積層されたシート状素材を挟圧するよう
にした周知の加熱加圧成形機であり、対の加熱・加圧盤
１８に鏡板または耐熱フィルムを介してシート状素材を
挟んで離型性を高めて成形することが好ましい。Next, the sheet material 15 is cut into a predetermined size by a cutting machine 16, a plurality of the sheets are stacked and stored in a hot press machine 17, and the sheet material 15 is cut into a 100 kgf / cm 2 ,
It was fused and integrated by heating and pressing at 160 ° C. for 90 minutes to obtain a heat-resistant and insulating laminate. The hot press 17 is a well-known heat-press forming machine configured to press a plurality of (for example, 1 to 10) stacked sheet-shaped materials between a plurality of sets of the heating / pressing plates 18. It is preferable to form the pair of heating / pressing plates 18 with a sheet-like material interposed therebetween via a head plate or a heat-resistant film so as to enhance the releasability.
【００３０】〔実施例２〕カーボンペーパーに代えて酸
化アルミニウムペーパー（電気化学社製：アルミナセラ
ミックペーパー 、幅１０５ｃｍ）を使用したこと以外
は実施例１と全く同様にしてシート状素材を形成し、さ
らに実施例１と全く同様の加熱加圧条件で耐熱・絶縁性
積層板を製造した。Example 2 A sheet material was formed in exactly the same manner as in Example 1 except that aluminum oxide paper (alumina ceramic paper, width 105 cm, manufactured by Denki Kagaku) was used instead of carbon paper. Further, a heat-resistant / insulating laminate was manufactured under the same heating and pressing conditions as in Example 1.
【００３１】〔実施例３〕実施例１の混合物粉末の組成
に代えて、カーボンぺーパー１００重量部に対して、黒
鉛化された有機物粉末として、鐘紡社製：ベルパールＣ
−２０００（フェノール樹脂を２０００℃程度の高温で
焼成したアモルファスのカーボン粉末）を２００重量部
を含む混合物粉末を使用したこと以外は、実施例１と全
く同様にして耐熱・絶縁性積層体を製造した。[Example 3] Instead of the composition of the mixture powder of Example 1, 100 parts by weight of carbon paper was used as a graphitized organic material powder, Bell Pearl C manufactured by Kanebo Co., Ltd.
Except that a mixture powder containing 200 parts by weight of -2000 (amorphous carbon powder obtained by baking a phenol resin at a high temperature of about 2000 ° C.) was used, a heat-resistant and insulating laminate was produced in exactly the same manner as in Example 1. did.
【００３２】実施例１〜３で得られた耐熱・絶縁性積層
板（厚さ１．５ｍｍ）に対し、耐炎試験として酸素アセ
チレン炎を火口から１５ｍｍの距離で３０４３℃の炎を
当てたところ、実施例１では１０秒間耐え、実施例２で
は１０秒間耐え、実施例３では８秒間耐えた。これに対
して同じ厚さのステンレス鋼板を全く同じ条件で熱した
ところ、６秒間で穴が開いた。As a flame resistance test, a flame of 3043 ° C. was applied to the heat-resistant and insulating laminate (1.5 mm thick) obtained in Examples 1 to 3 at a distance of 15 mm from the crater. In Example 1, it lasted for 10 seconds, in Example 2, it withstood for 10 seconds, and in Example 3, it withstood for 8 seconds. On the other hand, when a stainless steel plate having the same thickness was heated under exactly the same conditions, a hole was formed in 6 seconds.
【００３３】また、酸化の雰囲気中で１０００℃で２４
時間加熱したところ、実施例１の加熱減少率（重量％）
は５％であり、実施例２のそれは５％であり、実施例３
のそれは３％であった。Also, at 1000 ° C. in an oxidizing atmosphere,
After heating for an hour, the heating reduction rate of Example 1 (% by weight)
Is 5%, that of Example 2 is 5%, and that of Example 3
It was 3%.
【００３４】また、絶縁抵抗計を用いて表面抵抗率を調
べたところ、実施例１は１０14Ωであり、実施例２は１
０14Ωであり、実施例３は１０8 Ωであり、それぞれ絶
縁材料として優れた値を示した。When the surface resistivity was examined using an insulation resistance tester, it was 10 14 Ω in Example 1, and 1 14 Ω in Example 2.
A 0 14 Omega, Example 3 is 10 8 Omega, showed excellent values respectively as insulating material.
【００３５】[0035]
【発明の効果】この発明は、以上説明したように、人体
に安全性の高い耐熱性シート状補強材の表面に、熱硬化
性樹脂粉末と共に所定量の耐熱性無機質粉末と黒鉛化さ
れた有機質粉末を含む混合物粉末を重ねてこれを積層一
体化した耐熱・絶縁性積層体としたので、製造者および
需要者の健康を阻害することなく安全に製造および使用
ができ、しかも黒鉛化された有機質粉末の耐熱性等によ
って優れた耐熱性を有する耐熱・絶縁性積層体となる利
点がある。As described above, according to the present invention, a predetermined amount of heat-resistant inorganic powder together with a thermosetting resin powder and a graphitized organic material are formed on the surface of a heat-resistant sheet-like reinforcing material having high safety for the human body. A heat-resistant and insulating laminate is obtained by laminating a mixture of powders containing powder and integrating them into a laminate, so that they can be manufactured and used safely without impairing the health of manufacturers and consumers. There is an advantage that a heat-resistant and insulating laminate having excellent heat resistance due to the heat resistance of the powder and the like is obtained.
【００３６】また、その製造方法に係る発明について
は、上記利点のある耐熱・絶縁性積層体を製造できるこ
とに加え、製造段階において粉末状の混合物の付着量を
全重量の３５〜９７重量％の範囲で調整できるので、耐
熱・絶縁性積層体に所要の耐熱性を与えることができ、
特に液状混合物を含浸させる従来法に比べて製造物の耐
熱性を顕著に向上させることができるという利点があ
る。In the invention according to the production method, in addition to being able to produce a heat-resistant / insulating laminate having the above-mentioned advantages, the amount of the powdery mixture deposited in the production stage is 35 to 97% by weight of the total weight. Because it can be adjusted within the range, the required heat resistance can be given to the heat-resistant and insulating laminate,
In particular, there is an advantage that the heat resistance of the product can be significantly improved as compared with the conventional method of impregnating with a liquid mixture.
【図１】実施形態の製造工程を模式化して示す説明図FIG. 1 is an explanatory diagram schematically showing a manufacturing process of an embodiment.
１ 巻き出し用ロール ２ シート状補強材 ３、１１ ロール体 ４、１０ ＰＥＴフィルム ５ 枠型容器 ６ スリット ７ 混合物粉末 ８ ホッパー ９ 供給装置 １２、１３ 加熱ロール １４ 加圧ロール １５ シート状素材 １６ 裁断機 １７ ホットプレス機 １８ 加熱・加圧盤 REFERENCE SIGNS LIST 1 unwinding roll 2 sheet-like reinforcing material 3, 11 roll body 4, 10 PET film 5 frame type container 6 slit 7 mixed powder 8 hopper 9 feeding device 12, 13 heating roll 14 pressure roll 15 sheet material 16 cutting machine 17 Hot press machine 18 Heating / pressing board
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｈ０１Ｂ 3/48 Ｈ０１Ｂ 17/60 Ｄ 17/60 19/00 ３２１ 19/00 ３２１ Ｄ０６Ｍ 11/12 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 6 Identification symbol FI H01B 3/48 H01B 17/60 D 17/60 19/00 321 19/00 321 D06M 11/12
Claims (2)
維からなるシート状補強材の表面に、熱硬化性樹脂粉末
１００重量部に対して耐熱性無機質粉末もしくは黒鉛化
された有機質粉末または両者併用した粉末を３０〜３５
０重量部含む混合物層を重ねたシート状素材を設け、こ
のシート状素材を複数枚重ねて融着一体化してなる耐熱
・絶縁性積層体。1. A sheet-like reinforcing material made of carbon fiber or aluminum oxide fiber is coated with 30 parts by weight of a thermosetting resin powder, a heat-resistant inorganic powder, a graphitized organic powder, or a powder obtained by using both of them. ~ 35
A heat-resistant / insulating laminate obtained by providing a sheet material on which a mixture layer containing 0 parts by weight is stacked, and laminating and fusing and integrating a plurality of the sheet materials.
維からなるシート状補強材の表面に、未硬化の熱硬化性
樹脂粉末１００重量部に対して耐熱性無機質粉末もしく
は黒鉛化された有機質粉末または両者併用した粉末を３
０〜３５０重量部含む混合物粉末を付着させると共に、
加熱加圧して全重量の３５〜９７重量％の混合物が表層
に仮着されたシート状素材を形成し、次いでこのシート
状素材を複数枚重ねて加熱加圧により融着一体化するこ
とからなる耐熱・絶縁性積層体の製造方法。2. A heat-resistant inorganic powder or a graphitized organic powder or a combination of both, based on 100 parts by weight of an uncured thermosetting resin powder, on the surface of a sheet-like reinforcing material made of carbon fiber or aluminum oxide fiber. 3 powder
While adhering a mixture powder containing 0 to 350 parts by weight,
Heating and pressurizing to form a sheet material having a mixture of 35 to 97% by weight of the total weight temporarily attached to the surface layer, and then laminating a plurality of the sheet materials and fusing them together by heating and pressing. A method for manufacturing a heat-resistant and insulating laminate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9054897A JPH10278166A (en) | 1997-04-09 | 1997-04-09 | Heat-resistant insulating laminate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9054897A JPH10278166A (en) | 1997-04-09 | 1997-04-09 | Heat-resistant insulating laminate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10278166A true JPH10278166A (en) | 1998-10-20 |
Family
ID=14001477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9054897A Pending JPH10278166A (en) | 1997-04-09 | 1997-04-09 | Heat-resistant insulating laminate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10278166A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012158137A (en) * | 2011-02-02 | 2012-08-23 | Oji Paper Co Ltd | Paper sheet contained composite material and method for manufacturing the same |
| JP2013056473A (en) * | 2011-09-08 | 2013-03-28 | Nikko Kasei Kk | Low density resin laminated sheet and method for manufacturing the same |
-
1997
- 1997-04-09 JP JP9054897A patent/JPH10278166A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012158137A (en) * | 2011-02-02 | 2012-08-23 | Oji Paper Co Ltd | Paper sheet contained composite material and method for manufacturing the same |
| JP2013056473A (en) * | 2011-09-08 | 2013-03-28 | Nikko Kasei Kk | Low density resin laminated sheet and method for manufacturing the same |
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