JPH04107398A - Carbon fiber heat insulating material - Google Patents
Carbon fiber heat insulating materialInfo
- Publication number
- JPH04107398A JPH04107398A JP2224306A JP22430690A JPH04107398A JP H04107398 A JPH04107398 A JP H04107398A JP 2224306 A JP2224306 A JP 2224306A JP 22430690 A JP22430690 A JP 22430690A JP H04107398 A JPH04107398 A JP H04107398A
- Authority
- JP
- Japan
- Prior art keywords
- carbon fiber
- resin
- felt
- impregnated
- heat insulating
- 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
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 56
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 56
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 239000011810 insulating material Substances 0.000 title abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 22
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 13
- 238000010030 laminating Methods 0.000 claims abstract description 5
- 239000012774 insulation material Substances 0.000 claims description 7
- 238000010304 firing Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract description 9
- 239000005011 phenolic resin Substances 0.000 abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 239000003822 epoxy resin Substances 0.000 abstract description 2
- 239000011229 interlayer Substances 0.000 abstract description 2
- 229920000647 polyepoxide Polymers 0.000 abstract description 2
- 229920006122 polyamide resin Polymers 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 229920005992 thermoplastic resin Polymers 0.000 abstract 1
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 230000000704 physical effect Effects 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 238000005470 impregnation Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000011280 coal tar Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011134 resol-type phenolic resin Substances 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Landscapes
- Ceramic Products (AREA)
- Carbon And Carbon Compounds (AREA)
- Thermal Insulation (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、熱硬化性樹脂を含浸させた炭素繊維フェルト
と熱硬化性樹脂を含浸させた炭素繊維マットまたは炭素
繊維マットに炭素繊維ペーパーを組み合わせたものを少
なくとも各々一層以上用い、それらを設計密度になる様
適宜積層し、成形・焼成して得られる炭素繊維断熱材に
関するものであり、非酸化雰囲気で使用される各種高温
炉用断熱材として層間の剥離強度に優れた、且つフェル
トのみを素材としたものに比し安価であることを特長と
する断熱材を提供するものである。Detailed Description of the Invention (Industrial Field of Application) The present invention is a carbon fiber felt impregnated with a thermosetting resin, a carbon fiber mat impregnated with a thermosetting resin, or a carbon fiber paper on a carbon fiber mat. This is a carbon fiber insulation material obtained by using at least one layer of each combination, laminating them appropriately to the designed density, forming and firing them, and is a insulation material for various high-temperature furnaces used in a non-oxidizing atmosphere. The purpose of the present invention is to provide a heat insulating material that has excellent interlayer peel strength and is less expensive than those made only of felt.
（従来の技術）
窒素、アルゴン、真空等不活性雰囲気中で且つ高温（１
０００°Ｃ以上）中で使用される炉の断熱材としては炭
素繊維断熱材が一般的である。炭素繊維断熱材は要求さ
れる断熱特性、使用温度、雰囲気、厚さ、大きさなどの
形状等に応じて生産されている。(Prior technology) In an inert atmosphere such as nitrogen, argon, vacuum, etc. and at high temperature (1
Carbon fiber insulation is commonly used as insulation for furnaces used at temperatures above 000°C. Carbon fiber insulation materials are produced according to the required insulation properties, operating temperature, atmosphere, thickness, size, and other shapes.
需要の圧倒的大部分を占めるものとしては、フェルトを
素材としてそれにフェノール樹脂等炭化率の高い樹脂を
含浸させ、平板・円筒等目的とする形状に成形後、２０
００°Ｃ前後に焼成して得られるものである。こうして
得られる断熱材は、断熱特性に優れる、品質が一定して
いる、加工が容易であるなどの利点を有しているが原料
のフェルト自体に炭素繊維原糸あるいはマットをカード
リング、ニードルパンチをするなどの工程が不可欠であ
るため製品に占める原料コストが大きな比重を占めるこ
とになる。また、１５００−１６００８Ｃ以下の温度域
で使用される炉の断熱材としては上記フェルトベースの
断熱材は必ずしも必要なく、諸物性が多少劣っても低価
格であることがより重要な場合が多い。一方、各種の密
度の断熱材を得るためには各種の厚さ、目付けのフェル
トが必要となるが実際上は生産効率の点から１ないし２
種類のフェルトを使用することが多く、結果的には必要
以上のフェルトを使うことになり更にコストアップにつ
ながることが多い。The material that accounts for the overwhelming majority of demand is felt, which is impregnated with a resin with a high carbonization rate such as phenol resin, and then formed into a desired shape such as a flat plate or cylinder.
It is obtained by firing at around 00°C. The heat insulating material obtained in this way has advantages such as excellent heat insulating properties, consistent quality, and ease of processing.The raw material felt itself has carbon fiber threads or mats that are carded and needle punched. Because processes such as Further, the felt-based heat insulating material is not necessarily required as a heat insulating material for a furnace used in a temperature range of 1500-16008 C or lower, and low cost is often more important even if the physical properties are somewhat inferior. On the other hand, in order to obtain insulation materials with various densities, felts of various thicknesses and basis weights are required, but in practice from the viewpoint of production efficiency, felts of 1 to 2
Different types of felt are often used, which often results in the use of more felt than necessary, further increasing costs.
また、フェルトのみを多数枚積層するとフェルト自体は
各層間において必ずしも糸同志の絡みが充分ではなく厚
さ、密度によっては層間の剥離強度が不十分であること
が時として大きな問題となる。Furthermore, when a large number of sheets of felt are laminated, the threads of the felt itself are not necessarily entangled enough between each layer, and depending on the thickness and density, the peel strength between the layers may be insufficient, which sometimes poses a big problem.
（課題を解決するための手段）
本発明者らは、炭素繊維フェルトとその原料である炭素
繊維マットを形状、物性、密度等要求される目的に応じ
て組み合わせることにより層間の剥離強度の向上、旦っ
製品コストの低減を計ることが可能であることを見いだ
し本発明に至った。(Means for Solving the Problems) The present inventors have discovered that by combining carbon fiber felt and carbon fiber mat, which is its raw material, according to the required purpose such as shape, physical properties, density, etc., the peel strength between the layers can be improved. The inventors have discovered that it is possible to reduce product costs and have developed the present invention.
即ち、本発明は熱硬化性樹脂を含浸させた炭素繊維フェ
ルトと熱硬化性樹脂を含浸させた炭素繊維マットまたは
炭素繊維マットに炭素繊維ペーパーを組み合わせたもの
を少なくとも各々一層以上積層し、それらを最終目的に
合わせ適宜積層成形し、更に焼成して得られる炭素繊維
断熱材に関するものである。That is, the present invention laminates at least one layer each of carbon fiber felt impregnated with a thermosetting resin, carbon fiber mat impregnated with a thermosetting resin, or a combination of a carbon fiber mat and carbon fiber paper, and This invention relates to a carbon fiber heat insulating material obtained by laminating and molding as appropriate according to the final purpose and then firing.
樹脂を含浸させたフェルトとマットまたはマットにペー
パーを組み合わせたものとの積層方法は、厚さ、密度等
に応じて任意に組み合わせることが可能である。マット
とペーパーとを組み合わせものには例えばマットをペー
パーに載せるかペーパで挟み適宜な方法で樹脂を含浸さ
せたものがある。また積層時において樹脂を含浸させた
マットの表面に炭素繊維ペーパーあるいは可とう性のあ
る黒鉛質シートなどを張り合わせることも取扱性向上、
表面の粉落ち防止、断熱特性向上−の意味があり、本目
的の中にはこれらの方法のものも包含される。The lamination method of resin-impregnated felt and mat or a combination of mat and paper can be arbitrarily combined depending on the thickness, density, etc. A combination of a mat and paper includes, for example, a mat placed on paper or sandwiched between sheets of paper and impregnated with a resin by an appropriate method. Additionally, laminating carbon fiber paper or flexible graphite sheets on the resin-impregnated mat surface during lamination can improve handling.
The purpose is to prevent powder from falling off the surface and to improve heat insulating properties, and these methods are also included in this purpose.
本発明で用いられる炭素繊維フェルトはピッチ系、ＰＡ
Ｎ系の炭素繊維に限定されることはなく一般的に入手可
能なものであれば良く、更にはＰＡＮ系不融化繊維（例
えば、東邦レーヨン（株）製パイロメックス）や耐熱性
有機繊維（例えば、日本カイノール（株）製カイノール
）との混繊フェルトでも何等差し支えない。しかしなが
ら、特殊な目的に供する場合を除いて通常は価格的に安
価な且つ容易にフェルト化しやすいピッチ系炭素繊維が
望ましい。用いる炭素繊維フェルトの嵩密度、厚さ、目
付けなどは特に制約されるものではないが含浸性などを
考慮すると、厚さ：５−２０ｍｍ、嵩密度：０．０３−
０．１５ｇ／ｃｃ、 目付け： ２００−２０００ｇ／
ｍ”のものが好ましい。The carbon fiber felt used in the present invention is pitch-based, PA
It is not limited to N-based carbon fibers, as long as they are generally available. Furthermore, PAN-based infusible fibers (e.g., Pyromex manufactured by Toho Rayon Co., Ltd.) and heat-resistant organic fibers (e.g., There is no problem with felt mixed with Kynol (manufactured by Nippon Kynol Co., Ltd.). However, unless it is used for a special purpose, pitch-based carbon fibers are usually preferred because they are inexpensive and can be easily made into felt. There are no particular restrictions on the bulk density, thickness, basis weight, etc. of the carbon fiber felt used, but considering impregnability etc., thickness: 5-20 mm, bulk density: 0.03-
0.15g/cc, weight: 200-2000g/
m” is preferred.
このような炭素繊維フェルトは一般的に入手可能な熱硬
化性樹脂を用いて容易に含浸することができる。Such carbon fiber felt can be easily impregnated with a commonly available thermosetting resin.
使用する熱硬化性樹脂には、フェノール樹脂、フラン樹
脂、エポキシ樹脂、ポリイミド樹脂などが挙げられるが
、安価で残炭率の高いフェノール樹脂の使用が好ましい
。Examples of the thermosetting resin used include phenol resin, furan resin, epoxy resin, and polyimide resin, but it is preferable to use phenol resin, which is inexpensive and has a high residual carbon content.
また、炭素繊維／樹脂の比率は使用するフェルトの厚さ
、嵩密度及び要求される製品規格や焼成時の寸法変化等
を勘案して決定されるが樹脂として１０−５０重量％の
範囲で容易に調節できる。The carbon fiber/resin ratio is determined by taking into consideration the thickness of the felt used, bulk density, required product specifications, dimensional changes during firing, etc., but it is easily within the range of 10-50% by weight of the resin. It can be adjusted to
一方、本発明で用いる炭素繊維マットとは紡糸した糸を
ベルトコンベア等の上に堆積させ、焼成して得られる綿
状の糸の集合体であり、フェルト、ミルドファイバー、
チョツプドファイバー等の加工用原糸を意味する。炭素
繊維マットは炭素繊維フェルトに比し約半分の価格であ
り、製品としての炭素繊維断熱材が１０，０００〜３０
，０００円／ｋｇ程度することからしてコスト低減のた
めには充分意味がある。炭素繊維マット自体はフェルト
の様に形状の自己保持性は少ないものの糸同士は充分絡
み合っており、含浸、積層、切断等の作業上においては
回答不都合はない。また紡糸速度、ベルトコンベアの速
度などを調節することにより厚さ、嵩密度を調節出来る
が、量産化されるものとしては約０．０１−０．０３
ｇ／ ｃ ｃである。On the other hand, the carbon fiber mat used in the present invention is an aggregate of cotton-like threads obtained by depositing spun threads on a belt conveyor or the like and firing them.
Refers to raw yarn for processing such as chopped fiber. Carbon fiber mat is about half the price of carbon fiber felt, and carbon fiber insulation as a product costs 10,000 to 30
,000 yen/kg, it is meaningful for cost reduction. Although the carbon fiber mat itself does not have the ability to self-retain its shape like felt, the threads are sufficiently intertwined with each other, so there is no problem in operations such as impregnation, lamination, and cutting. In addition, the thickness and bulk density can be adjusted by adjusting the spinning speed, the speed of the belt conveyor, etc., but for mass production it is about 0.01-0.03
g/cc.
この様な炭素繊維マットはフェルトに比して嵩高く、糸
がばらけ易い難点はあるが含浸装置を工夫することによ
り、あるいは樹脂溶液を散布することにより含浸するこ
とが可能である。例えば炭素繊維マットを炭素繊維ペー
パーで挟むことにより含浸装置による含浸を容易ならし
めることができる。Although such a carbon fiber mat is bulkier than felt and has the disadvantage that the threads tend to come apart, it is possible to impregnate it by devising an impregnating device or by spraying a resin solution. For example, by sandwiching a carbon fiber mat between carbon fiber papers, impregnation by an impregnation device can be facilitated.
また本発明で言う炭素繊維ペーパーはピッチ系またはＰ
ＡＮ系のいずれでも良く、又ペーパーに使用されるバイ
ンダーも特に制約されるものではなく広く一般的に入手
可能なものであれば差し支えない。In addition, the carbon fiber paper referred to in the present invention is pitch-based or P
Any AN-based binder may be used, and there are no particular restrictions on the binder used for the paper, as long as it is widely available.
（実施例） 次いで本発明を実施例によりさらに説明する。(Example) Next, the present invention will be further explained by examples.
尚、例中の部及び％は特にことわりのない限り重量基準
である。In addition, parts and percentages in the examples are based on weight unless otherwise specified.
参考例１
コールタールを素材とする汎用型ピッチ系炭素繊維フェ
ルト、厚さ１０ｍｍ、嵩密度： ０．０５ ｇ／ＣＣを
、含浸装置を用いてレゾールタイプのフェノール樹脂を
用いて含浸させた。得られた炭素繊維フェルトプリプレ
グの物性は、樹脂含有率：約２５％、揮発分：約１０％
、目付け：約７５０ｇ／ ｍ ｓであった。このものを
８枚積層し、１５０℃において１時間圧縮成形、次いで
真空下２０００°Ｃ迄昇温・焼成することで最終的に嵩
密度０．１６ｇ／ｃｃ、厚さ３０ｍｍの平板状炭素繊維
断熱材を得た。このものの物性は次の通りであった。Reference Example 1 A general-purpose pitch-based carbon fiber felt made of coal tar, 10 mm thick, bulk density: 0.05 g/CC, was impregnated with a resol type phenol resin using an impregnation device. The physical properties of the obtained carbon fiber felt prepreg are as follows: resin content: approximately 25%, volatile content: approximately 10%.
, basis weight: approximately 750 g/m s. Eight sheets of this material are laminated, compression molded at 150°C for 1 hour, then heated to 2000°C under vacuum and fired to create a flat carbon fiber insulation with a bulk density of 0.16g/cc and a thickness of 30mm. I got the material. The physical properties of this product were as follows.
熱伝導率（ｋｃａｌ／ｍ−ｈｒ・’Ｃ） ： ０ 、０
８ （１０００℃）。Thermal conductivity (kcal/m-hr・'C): 0, 0
8 (1000℃).
０．２２ （２０００℃）（１０−”Ｔｏｒｒ真空中）
剥離強度（ｋｇ／ｃｍ”） ： ０ 、２５ （フラッ
トワイズ法）圧縮強度（ｋｇ／ｃｍ’） ： ３ 、１
実施例１
コールタールを素材とする汎用型ピッチ系炭素繊維マッ
ト、嵩密度： ０．０２ ｇ／ ｃ ｃ、 見かけ厚
さ：２０ｍｍを揮発分２０％のレゾールタイプのフェノ
ール樹脂のメタノール溶液をスプレー散布。0.22 (2000℃) (10-” Torr vacuum)
Peel strength (kg/cm'): 0, 25 (Flatwise method) Compressive strength (kg/cm'): 3, 1
Example 1 A general-purpose pitch-based carbon fiber mat made of coal tar, bulk density: 0.02 g/cc, apparent thickness: 20 mm, was sprayed with a methanol solution of resol type phenolic resin with a volatile content of 20%. .
乾燥することにより樹脂含有量約３０％、揮発分：約１
５％、目付け：約３００ｇ／ｍ”のプリプレグ状物を得
た。このものを参考例１記載のフェルトプリプレグ２枚
に１枚の割合、即ちフェルト２枚／マット１枚／フェル
ト２枚／マット１枚／フェルト２枚の順で積層した。こ
の積層物を１５０℃において１時間圧縮成形し、次いで
真空下２０００°Ｃ迄昇温・焼成することで最終的に嵩
密度０．１５ｇ／ＣＣ，厚さ３０ｍｍの平板状炭素繊維
断熱材を得た。成形以後に要したコストは参考例１と同
じであるがこのものの最終的コストは参考例１に比し約
１０％低かった。このものの物性は次の通りであった。By drying, resin content is approximately 30%, volatile content: approximately 1
5%, basis weight: about 300 g/m" was obtained. This material was mixed into the ratio of 1 to 2 felt prepregs described in Reference Example 1, that is, 2 felts/1 mat/2 felts/mat. One piece of felt/two pieces of felt were laminated in this order.This laminate was compression molded at 150°C for 1 hour, and then heated and fired under vacuum to 2000°C, resulting in a final bulk density of 0.15g/CC, A flat carbon fiber insulation material with a thickness of 30 mm was obtained.The cost required after molding was the same as Reference Example 1, but the final cost of this material was about 10% lower than that of Reference Example 1.Physical properties of this material was as follows.
熱伝導率（ｋｃａｌ／ｍ−ｈｒ−’Ｃ） ： ０ 、０
９ （１０００°Ｃ）。Thermal conductivity (kcal/m-hr-'C): 0, 0
9 (1000°C).
０．２４ （２０００°Ｃ）（１０−２Ｔｏ ｒ ｒ真
空中）剥離強度（ｋｇ／ａｍ”） ： ｏ 、 ２９
（フラットワイズ法）参考例１により得られた断熱材に
おいては層間の剥離箇所は特定出来なかったが実施例１
の場合はマットの箇所ではなくフェルトの部分で剥離が
おこっている。0.24 (2000°C) (10-2 Torr vacuum) Peel strength (kg/am”): o, 29
(Flatwise method) In the heat insulating material obtained in Reference Example 1, it was not possible to identify the location of delamination between the layers, but in Example 1
In this case, the peeling is occurring in the felt part, not in the mat part.
実施例２
実施例１記載と同じ炭素繊維マットをピッチ系炭素繊維
ペーパー、目付け：４０ｇ／ｍ’のもので挟み含浸装置
を用い同じ〈実施例１記載のフエノル樹脂により含浸さ
せ、樹脂含有量約３０％。Example 2 The same carbon fiber mat as described in Example 1 was sandwiched between pitch-based carbon fiber paper, basis weight: 40 g/m', and impregnated with the same phenolic resin described in Example 1 using the same impregnating device, with a resin content of approx. 30%.
目付け：約４００ｇ／ｍ２のプリプレグ状物を得た。こ
のものを実施例１と同様にしてフェルトプリプレグの間
に挟み同様に積層した。積層物を更に同様に処理するこ
とにより最終的に嵩密度 約０．１６ｇ／ｃｃ、 厚
さ３０ｍｍの平板状炭素繊維断熱材を得た。この場合の
コストは参考例１に比し約５％低かった。A prepreg material having a basis weight of approximately 400 g/m2 was obtained. This material was sandwiched between felt prepregs and laminated in the same manner as in Example 1. The laminate was further treated in the same manner to finally obtain a flat carbon fiber heat insulating material having a bulk density of approximately 0.16 g/cc and a thickness of 30 mm. The cost in this case was about 5% lower than that in Reference Example 1.
このものの熱伝導率は測定誤差内でほとんど実施例１の
場合に得られたものと同等であった。The thermal conductivity of this product was almost the same as that obtained in Example 1 within the measurement error.
一方、剥離強度は約０．３ｋｇ／ｃｍ”であった。On the other hand, the peel strength was about 0.3 kg/cm''.
実施例３
実施例１記載と同様にしてスプレー法によす同様のマッ
トのプリプレグ状物を得た。このものとフェルトプリプ
レグを交互にフェルトが上段にマットが最下段になるよ
うに各々４層ずつ計８層積層し、最下段のマットプリプ
レグの表面に０．５ｍｍ厚の可とう性黒鉛質シートを張
り合わせた。Example 3 A similar matte prepreg material was obtained by spraying in the same manner as described in Example 1. This material and felt prepreg were alternately laminated in 8 layers, 4 layers each, with felt at the top and mat at the bottom, and a 0.5 mm thick flexible graphite sheet was placed on the surface of the bottom mat prepreg. Pasted together.
積層物を上記実施例と同様にして成形・焼成することに
より嵩密度０．１５ｇ／ｃｃ、 厚さ３０ｍｍの平板
状炭素繊維断熱材を得た。この場合のコス１〇 −
トは参考例１に比し約５％低かった。このものの物性は
次の通りであった。The laminate was molded and fired in the same manner as in the above example to obtain a flat carbon fiber heat insulating material having a bulk density of 0.15 g/cc and a thickness of 30 mm. The cost in this case was about 5% lower than that in Reference Example 1. The physical properties of this product were as follows.
熱伝導率（ｋｃａｌ／ｍ、ｈｒ、。ｃ） ： ０．０８
（１０００°Ｃ）。Thermal conductivity (kcal/m, hr, .c): 0.08
(1000°C).
０．２２ （２０００°Ｃ） （１０−”Ｔｏ ｒ
ｒ真空中）（黒鉛質シート面が高温側になる様にセット
し測定）
剥離強度（ｋｇ／ｃｍ”） ： ０ 、３０ （フラッ
トワイズ法）（発明の効果）
本発明の炭素繊維断熱材は炭素繊維フェルトのみから得
られる断熱材に比し、剥離強度に優れ、低価格、且つ熱
伝導率の低下の殆どない断熱材をである。0.22 (2000°C) (10-” Tor
(in vacuum) (measured by setting the graphite sheet surface on the high temperature side) Peel strength (kg/cm"): 0, 30 (Flatwise method) (Effects of the invention) The carbon fiber insulation material of the present invention Compared to a heat insulating material obtained only from carbon fiber felt, this heat insulating material has superior peel strength, is lower in price, and has almost no decrease in thermal conductivity.
Claims (1)
化性樹脂を含浸させた炭素繊維マットまたは炭素繊維マ
ットに炭素繊維ペーパーを組み合わせたものを少なくと
も各々一層以上積層し、成形・焼成して得られることを
特徴とする炭素繊維断熱材。1. Obtained by laminating at least one layer of carbon fiber felt impregnated with a thermosetting resin and a carbon fiber mat impregnated with a thermosetting resin, or a combination of carbon fiber mat and carbon fiber paper, and then molding and firing. A carbon fiber insulation material characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02224306A JP3028571B2 (en) | 1990-08-28 | 1990-08-28 | Manufacturing method of carbon fiber insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02224306A JP3028571B2 (en) | 1990-08-28 | 1990-08-28 | Manufacturing method of carbon fiber insulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04107398A true JPH04107398A (en) | 1992-04-08 |
| JP3028571B2 JP3028571B2 (en) | 2000-04-04 |
Family
ID=16811700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02224306A Expired - Fee Related JP3028571B2 (en) | 1990-08-28 | 1990-08-28 | Manufacturing method of carbon fiber insulation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3028571B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000141526A (en) * | 1998-11-13 | 2000-05-23 | Nippon Carbon Co Ltd | Carbon fiber-forming heat insulation material |
| WO2001006169A1 (en) * | 1999-07-19 | 2001-01-25 | Toyo Tanso Co., Ltd. | Formed heat insulating material and heat shield |
| WO2015178453A1 (en) * | 2014-05-21 | 2015-11-26 | 株式会社クレハ | Cylindrical heat insulation material and method for producing same |
| CN105339721A (en) * | 2013-06-04 | 2016-02-17 | 霓佳斯株式会社 | Heat insulation material and method of manufacturing heat insulation material |
| JP2018076963A (en) * | 2016-10-28 | 2018-05-17 | 大阪ガスケミカル株式会社 | Molded adiabatic material and process of manufacture thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200520595A (en) * | 2003-11-28 | 2005-06-16 | Matsushita Electric Ind Co Ltd | A method for manufacturing a carbon-based heating element, a carbon-based heating element, a heater and a heating apparatus |
-
1990
- 1990-08-28 JP JP02224306A patent/JP3028571B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000141526A (en) * | 1998-11-13 | 2000-05-23 | Nippon Carbon Co Ltd | Carbon fiber-forming heat insulation material |
| WO2001006169A1 (en) * | 1999-07-19 | 2001-01-25 | Toyo Tanso Co., Ltd. | Formed heat insulating material and heat shield |
| CN105339721A (en) * | 2013-06-04 | 2016-02-17 | 霓佳斯株式会社 | Heat insulation material and method of manufacturing heat insulation material |
| CN111457194A (en) * | 2013-06-04 | 2020-07-28 | 霓佳斯株式会社 | Thermal insulation material and method for manufacturing thermal insulation material |
| CN111457194B (en) * | 2013-06-04 | 2021-11-23 | 霓佳斯株式会社 | Thermal insulation material and method for manufacturing thermal insulation material |
| WO2015178453A1 (en) * | 2014-05-21 | 2015-11-26 | 株式会社クレハ | Cylindrical heat insulation material and method for producing same |
| JP2018076963A (en) * | 2016-10-28 | 2018-05-17 | 大阪ガスケミカル株式会社 | Molded adiabatic material and process of manufacture thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3028571B2 (en) | 2000-04-04 |
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