JPH06279138A - Fibrous heat insulating material and its production - Google Patents
Fibrous heat insulating material and its productionInfo
- Publication number
- JPH06279138A JPH06279138A JP4606793A JP4606793A JPH06279138A JP H06279138 A JPH06279138 A JP H06279138A JP 4606793 A JP4606793 A JP 4606793A JP 4606793 A JP4606793 A JP 4606793A JP H06279138 A JPH06279138 A JP H06279138A
- Authority
- JP
- Japan
- Prior art keywords
- heat insulating
- insulating material
- binder
- fiber
- carbon fiber
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
- C04B28/344—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders the phosphate binder being present in the starting composition solely as one or more phosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、住宅設備、自動車その
他の輸送車両、各種工場設備等のための繊維質断熱材、
特に断熱性シール材としての使用に好適な繊維質断熱
材、およびその製造法に関するものである。BACKGROUND OF THE INVENTION The present invention relates to a fiber insulating material for housing equipment, automobiles and other transportation vehicles, various factory equipment, and the like.
In particular, the present invention relates to a fibrous heat insulating material suitable for use as a heat insulating sealing material, and a method for producing the same.
【０００２】[0002]
【従来の技術】住宅設備、自動車その他の輸送車両、各
種工場設備等において、パネルや柱材などの間隙を隙間
なく埋めるための、スポンジのように圧縮可能で圧縮弾
性回復率にも優れた軽量の耐熱性シール材が必要とされ
る場合がある。このような場合に従来使用されてきた断
熱材の代表的なものに、石綿を主材とするスポンジ状の
ものがあったが、環境衛生上の理由で石綿含有製品の利
用が規制されるようになったため、石綿を使用しない代
替品の開発が求められている。石綿使用品に替わるもの
としてこれまでに提案されたものにはセラミックファイ
バーを主材とするフェルト状のものがあったが、必要な
シール性能を備えたものは嵩密度が高く弾力性に欠け、
且つ繰り返し圧縮荷重を受けたときの復元性低下が著し
い。2. Description of the Related Art Lightweight, which can be compressed like a sponge and has excellent compression elastic recovery rate to fill the gaps of panels and pillars in housing equipment, automobiles and other transportation vehicles, various factory equipment, etc. In some cases, the heat-resistant sealing material of is required. In such a case, a typical heat insulating material that has been used in the past was a sponge-like material that mainly uses asbestos, but the use of asbestos-containing products may be restricted for environmental hygiene reasons. Therefore, the development of alternatives that do not use asbestos is required. Some of the alternatives that have been proposed so far as alternatives to asbestos-based products are felt-like ones that use ceramic fibers as the main material, but those that have the necessary sealing performance have high bulk density and lack elasticity,
In addition, there is a remarkable decrease in resilience when subjected to repeated compressive loads.
【０００３】[0003]
【発明が解決しようとする課題】そこで本発明の目的
は、軽量で圧縮弾性回復率にも優れ、シール材としての
使用に適した断熱材を、非石綿質繊維材料により提供す
ることにある。SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a heat insulating material which is lightweight and has an excellent compression elastic recovery rate and which is suitable for use as a sealing material, using a non-asbestos fiber material.
【０００４】[0004]
【課題を解決するための手段】本発明は、炭素繊維チョ
ップおよびセラミックファイバーからなる無機繊維混合
物ならびにこれらの無機繊維同士を結合している少量の
結合剤よりなる嵩密度０.０３〜０.１６g/cm3のシート
状成形物であることを特徴とする繊維質断熱材を提供す
るものである。DISCLOSURE OF THE INVENTION The present invention provides a bulk density of 0.03 to 0.16 g consisting of an inorganic fiber mixture consisting of carbon fiber chops and ceramic fibers and a small amount of a binder which binds these inorganic fibers together. The present invention provides a fibrous heat insulating material, which is a sheet-shaped molded product having a density of / cm 3 .
【０００５】この断熱材を構成する炭素繊維チョップ
は、好ましくはその繊維径が約１〜20μm、繊維長が数m
m〜約１０mmで、軽く湾曲したものである。また、結合
剤は、好ましくは弾力性を有するもの（すなわち、断熱
材に強い圧縮荷重が加えられたときも弾性変形を起こす
だけで容易に破壊しないもの）である。The carbon fiber chop constituting this heat insulating material preferably has a fiber diameter of about 1 to 20 μm and a fiber length of several meters.
It is slightly curved with a length of m to about 10 mm. Further, the binder is preferably one having elasticity (that is, one which only elastically deforms and does not easily break even when a strong compressive load is applied to the heat insulating material).
【０００６】上記２種類の繊維からなる本発明の断熱材
においては、剛直なセラミックファイバーにより形成さ
れた嵩高なシート構造をセラミックファイバー間に分布
する炭素繊維チョップが弾性的に支えており、それによ
り、圧縮荷重による変形を生じた後の優れた復元性を可
能にしている。弾性率の高い炭素繊維が湾曲を有すると
きは炭素繊維の上記作用が一層顕著であって、弾性回復
率がより優れた断熱材を与える。炭素繊維の比率が高い
ほど圧縮弾性率が低く柔らかい感じの断熱材になるが、
炭素繊維だけでは圧縮復元性が十分でないものとなるの
で、無機繊維全体の中での炭素繊維チョップの比率を５
〜８０重量％にすることが望ましい。In the heat insulating material of the present invention composed of the above-mentioned two kinds of fibers, the bulky sheet structure formed by the rigid ceramic fibers is elastically supported by the carbon fiber chops distributed between the ceramic fibers. It enables excellent resilience after deformation due to compressive load. When the carbon fiber having a high elastic modulus has a curvature, the above-mentioned action of the carbon fiber is more remarkable, and a heat insulating material having a higher elastic recovery rate is provided. The higher the carbon fiber ratio, the lower the compression modulus and the softer the heat insulating material,
Since the compression recovery is not sufficient with carbon fiber alone, the ratio of carbon fiber chop in the whole inorganic fiber should be 5
It is desirable to set the content to 80% by weight.
【０００７】嵩密度は、シール材として使用する場合に
重要な特性である圧縮性と気密性を左右する。この値が
０.０３g/cm3未満のものは不必要な程度にかさ高であっ
て通気性が大きすぎ、一方、嵩密度が０.１６g/cm3を超
えるときは圧縮弾性率が高すぎて使いにくいものとな
る。結合剤が弾力性を有するものであるときは、圧縮荷
重を受けて大きな変形を生じたときも結合剤による繊維
間結合部が破壊することがないから、高率かつ安定した
圧縮復元性を約束する。The bulk density influences compressibility and airtightness, which are important characteristics when used as a sealing material. If this value is less than 0.03 g / cm 3 , it is unnecessarily bulky and the air permeability is too large, while if the bulk density exceeds 0.16 g / cm 3 , the compression modulus is too high. It becomes difficult to use. When the binder is elastic, the fiber-to-fiber bond does not break even if it undergoes a large deformation under a compressive load. To do.
【０００８】本発明による断熱材は種々の方法で製造可
能であるが、コロイダルシリカ、水および重リン酸アル
ミニウムを混合してなる結合剤を添加した水中に炭素繊
維チョップおよびセラミックファイバーを分散させ、得
られた無機繊維分散液を最終的に嵩密度が０.０３〜０.
１６g/cm3の嵩高なシートが形成されるような条件で抄
造し、加熱乾燥する方法によれば、特に耐熱性に優れた
断熱材を製造することができる。以下、本発明の繊維質
断熱材の製造法につき詳述する。Although the heat insulating material according to the present invention can be manufactured by various methods, carbon fiber chops and ceramic fibers are dispersed in water containing a binder made by mixing colloidal silica, water and aluminum diphosphate, The resulting inorganic fiber dispersion finally has a bulk density of 0.03-0.
According to the method of papermaking under the condition that a bulky sheet of 16 g / cm 3 is formed and heating and drying, a heat insulating material having particularly excellent heat resistance can be produced. Hereinafter, the method for producing the fibrous heat insulating material of the present invention will be described in detail.
【０００９】原料の炭素繊維チョップとしては、好適に
は繊維径が約１〜２０μmで長さが数mmないし約１０mm
のものを用いる。炭素繊維素材は特に限定されるもので
はなく、比較的安価なピッチ系炭素繊維も十分使用可能
である。ピッチ系炭素繊維のように、炭素質原料の熔融
物を繊維状に成形し炭素化させる方法により製造された
炭素繊維は、繊維化方法によってはカールしていること
があり、チョップにした後もそれが軽い湾曲となって残
っているが、そのような湾曲形状の炭素繊維は、容易に
かさ高な製品を与え、また本発明の断熱材においては圧
縮復元性を向上させるスプリング作用が優れているの
で、むしろ好ましい（市販品の例としては、“ドナカー
ボ”の商品名で大日本インキ化学工業株式会社から販売
されているものがある。）。The raw material carbon fiber chop preferably has a fiber diameter of about 1 to 20 μm and a length of several mm to about 10 mm.
Use the one. The carbon fiber material is not particularly limited, and relatively inexpensive pitch-based carbon fiber can be sufficiently used. Like pitch-based carbon fibers, carbon fibers produced by a method of carbonizing a melt of a carbonaceous raw material into a fiber and carbonizing it may curl depending on the fiberizing method, and even after chopping it Although it remains as a light curve, the carbon fiber having such a curve easily gives a bulky product, and the heat insulating material of the present invention has an excellent spring action for improving compression recovery. Therefore, it is rather preferable (an example of a commercially available product is that sold by Dainippon Ink and Chemicals, Inc. under the trade name of "DONA CARBO").
【００１０】セラミックファイバーとしては、アルミノ
シリケート繊維、ムライト繊維、アルミナ繊維、シリカ
繊維、カヤナイト繊維、チタン酸カリウム繊維、炭化ケ
イ素繊維、マグネシア繊維等、任意のものを用いること
ができる。好ましい繊維長は約１〜５０mmである。As the ceramic fiber, any of aluminosilicate fiber, mullite fiber, alumina fiber, silica fiber, kyanite fiber, potassium titanate fiber, silicon carbide fiber, magnesia fiber and the like can be used. The preferred fiber length is about 1 to 50 mm.
【００１１】炭素繊維とセラミックファイバーは、望ま
しくは５：９５ないし８０：２０の重量比で併用する。
炭素繊維の量が少なすぎると、かさ高なシートを得るこ
とは難しくなる。２種類の原料繊維を繊維間接触点にお
いて接合し繊維集合物を所定の形状に保つ結合剤は、有
機質のものでも無機質のものでもよいが、製品の使用温
度が高い場合や加熱されたときの発煙を嫌う場合は、無
機質のものを使うか、少量の有機質結合剤に無機質結合
剤を併用することが望ましい。The carbon fiber and the ceramic fiber are preferably used together in a weight ratio of 5:95 to 80:20.
If the amount of carbon fiber is too small, it becomes difficult to obtain a bulky sheet. The binder that bonds the two kinds of raw fibers at the contact point between fibers to keep the fiber aggregate in a predetermined shape may be organic or inorganic, but when the product is used at a high temperature or is heated. If smoke is disliked, it is desirable to use an inorganic binder or use a small amount of an organic binder together with an inorganic binder.
【００１２】結合剤は、なるべく硬度が低く弾力性を有
する（つまりしなやかな）硬化物を生じるものであるこ
とが望ましい。結合剤がしなやかであれば、製品が圧縮
されたとき歪みが結合剤部分に伝達されても弾性変形を
起こして破壊には至らず、また、圧縮応力により曲げら
れた無機繊維も折れにくいから、製品は圧縮応力除去後
の復元性に優れたものとなる。しなやかな硬化物を与え
る結合剤は有機質結合剤の中には多いが、有機質結合剤
は前述のように製品の使用温度が高い場合は炭化したり
焼失したりしてその物性が大幅に変化するので、単独使
用は製品の使用温度が低い場合に限られる。耐熱性が優
れている無機質結合剤は物性面では良いものが少ない
が、本発明者らにより発明された結合剤、すなわちコロ
イダルシリカ、水および重リン酸アルミニウムを混合し
てなる結合剤は本発明の断熱材製造に推奨できるもので
ある。この結合剤は、コロイダルシリカに水を加えて撹
拌しながら粘い重リン酸アルミニウム（重量比でコロイ
ダルシリカの約１〜１０倍量）を少しずつ添加し均一な
混合物にすることによって得られる。[0012] The binder is preferably one which produces a cured product having as low hardness as possible and elasticity (that is, suppleness). If the binder is supple, even if strain is transmitted to the binder portion when the product is compressed, elastic deformation does not occur and it does not lead to destruction, and since the inorganic fiber bent by compressive stress is also difficult to break, The product has excellent resilience after removal of compressive stress. There are many binders that give a supple cured product among organic binders, but as mentioned above, when the operating temperature of the product is high, the physical properties of the organic binder change significantly due to carbonization or burning. Therefore, the single use is limited to the case where the use temperature of the product is low. Although there are few inorganic binders having excellent heat resistance in terms of physical properties, the binder invented by the present inventors, that is, the binder formed by mixing colloidal silica, water and aluminum biphosphate is the present invention. It is recommended for the production of heat insulating materials. This binder can be obtained by adding water to colloidal silica and gradually adding viscous aluminum diphosphate (about 1 to 10 times the weight of colloidal silica in weight ratio) with stirring to form a uniform mixture.
【００１３】２種類の無機繊維は、あらかじめ結合剤を
溶解または分散させた水中に均一に分散させる。結合剤
は、無機繊維に対して約１〜１０重量％が付着するよう
に使用する。抄造用繊維分散液には、ほかに凝集剤、界
面活性剤等任意の成形助剤や、酸化防止剤等を添加する
ことができる。抄造は繊維質シート抄造の常法により行
うことができ、厚さ約０.５〜５０mmのシートに成形す
る。抄造されたシートを加熱乾燥して結合剤を硬化させ
ると、本発明の断熱材が得られる。この後、必要ならば
約２５０℃以上の温度に加熱して結合剤等有機質のもの
を焼失させ、使用中に発煙するおそれのないものにす
る。The two kinds of inorganic fibers are uniformly dispersed in water in which a binder is previously dissolved or dispersed. The binder is used so that about 1 to 10% by weight of the inorganic fiber is attached. In addition to the fiber dispersion for papermaking, an optional molding aid such as an aggregating agent and a surfactant, an antioxidant and the like can be added. Papermaking can be carried out by a conventional method for fibrous sheet papermaking, and a sheet having a thickness of about 0.5 to 50 mm is formed. The heat insulating material of the present invention is obtained by heating and drying the paper sheet to cure the binder. After that, if necessary, it is heated to a temperature of about 250 ° C. or higher to burn off organic substances such as a binder so that there is no fear of smoking during use.
【００１４】なお、無機繊維混合物の成形は、上述のよ
うな抄造法によらずに乾式法によって行うこともでき
る。たとえば無機繊維混合物を十分解繊した状態で吹き
飛ばし、そこに結合剤溶液を噴霧して付着させ、結合剤
溶液が付着した繊維を集めてシート状に成形し、加熱し
て結合剤を硬化させる。製品はシート状のまま、あるい
は適当な幅に裁断し紐状にして、一般的な断熱材あるい
は断熱シール材としての使用に供する。The molding of the inorganic fiber mixture can be carried out by a dry method instead of the above-mentioned papermaking method. For example, the inorganic fiber mixture is blown off in a sufficiently defibrated state, the binder solution is sprayed and attached thereto, the fibers to which the binder solution is attached are collected and formed into a sheet, and the binder is cured by heating. The product is used as a general heat insulating material or heat insulating sealing material after being formed into a sheet or cut into a string having an appropriate width.
【００１５】[0015]
【実施例】以下、実施例を示して本発明を説明する。な
お、各実施例において用いた炭素繊維チョップは大日本
インキ化学工業株式会社から市販されているもの（商品
名：ドナカーボ）であって、円弧状に軽く湾曲してい
る。The present invention will be described below with reference to examples. The carbon fiber chops used in each example are commercially available from Dainippon Ink and Chemicals, Inc. (trade name: DonaCarbo) and are lightly curved in an arc shape.
【００１６】実施例１ 炭素繊維チョップ（繊維長６mm，繊維径１３μm） １５.７８重量部 セラミックファイバー（アルミノシリケート繊維） ６３.１９重量部 アクリル変性シリコーンエマルジョン樹脂 ３.１６重量部 カップリング剤 ０.０７重量部 カチオン界面活性剤 ０.１０重量部 酸化コバルト １.９０重量部 硫酸アルミニウム ８.００重量部 アンモニア水 ７.８０重量部Example 1 Carbon fiber chop (fiber length 6 mm, fiber diameter 13 μm) 15.78 parts by weight Ceramic fiber (aluminosilicate fiber) 63.19 parts by weight Acrylic modified silicone emulsion resin 3.16 parts by weight Coupling agent 0.1. 07 parts by weight Cationic surfactant 0.10 parts by weight Cobalt oxide 1.90 parts by weight Aluminum sulfate 8.00 parts by weight Ammonia water 7.80 parts by weight
【００１７】上記を水に分散または溶解させて固形分濃
度０.３％の抄造液を調製した。アクリル変性シリコー
ンエマルジョン樹脂は弾力性硬化物を与える結合剤であ
る。アンモニア水でアルカリ性になった抄造液中では、
硫酸アルミニウムは加水分解してアルミナゾルを形成し
ており、アルミナゾルは無機繊維および酸化コバルトの
凝集剤として作用し、抄造後は無機質結合剤（対無機繊
維１.３重量％）として作用する。カップリング剤（メ
タクリロキシプロピルトリメトキシシラン）は結合剤と
繊維表面との親和性を向上させ、製品の圧縮復元性を高
める。カチオン界面活性剤は繊維の柔軟剤であり凝集剤
でもある。酸化コバルトは耐火性向上剤である。The above was dispersed or dissolved in water to prepare a papermaking liquid having a solid content concentration of 0.3%. Acrylic modified silicone emulsion resin is a binder that gives an elastic cured product. In the papermaking liquid that has been made alkaline with aqueous ammonia,
Aluminum sulfate is hydrolyzed to form alumina sol, and the alumina sol acts as an aggregating agent for inorganic fibers and cobalt oxide, and after papermaking acts as an inorganic binder (1.3% by weight of inorganic fibers). The coupling agent (methacryloxypropyltrimethoxysilane) improves the affinity between the binder and the fiber surface and enhances the compression recovery of the product. Cationic surfactants are both fiber softeners and flocculants. Cobalt oxide is a refractory improver.
【００１８】抄造は通常の丸網式抄造機により行い、抄
造物を１００〜１２０℃のオーブンで乾燥した。比較の
ため、炭素繊維チョップを用いずセラミックファイバー
７８.９７重量部を用いたほかは上記と同様にして、断
熱材（嵩密度０.２g/cm3）を製造した。得られたシート
の特性を表１および表２に示す。Papermaking was carried out by an ordinary cylinder type papermaking machine, and the papermaking product was dried in an oven at 100 to 120 ° C. For comparison, a heat insulating material (bulk density: 0.2 g / cm 3 ) was produced in the same manner as above except that 78.97 parts by weight of ceramic fiber was used without using carbon fiber chop. The characteristics of the obtained sheet are shown in Tables 1 and 2.
【００１９】[0019]
【表１】圧縮復元率（％） 圧縮率（％） 実施例品 比較例品 ３０ ９７.５ ８７.３ ４０ ９６.４ ８０.９ ５０ ９５.０ ７３.４ ６０ ９４.４ ６５.６ ７０ ９２.１ ６２.１８０ ８８.７ ４８.７ （圧縮復元率：シートに荷重を加えて所定の圧縮率まで
圧縮し、その状態で５分間経過後、荷重を除き、５分経
過後のシート厚さを測定して厚さの復元率を算出す
る。）[Table 1] Compression restoration rate (%) Compression rate (%) Example product Comparative example product 30 97.5 87.3 40 96.4 80.9 50 95.0 73.4 60 94.4 65.6 70 92.1 62.1 80 88.7 48.7 (Compression recovery rate: A load is applied to the sheet to compress it to a predetermined compression rate, and after 5 minutes have elapsed, the load is removed and the sheet after 5 minutes has elapsed. The thickness is measured to calculate the thickness restoration rate.)
【００２０】[0020]
【表２】熱伝導率（kcal/m・h・℃） 温度（℃） 実施例品 比較例品 ２００ ０.０４ ０.０５ ３００ ０.０５ ０.０８ ４００ ０.０７ ０.１０５００ ０.０９ ０.１３ また、実施例品を６００℃に１時間加熱したときの収縮
率は４.７％であり、同様に９００℃に加熱したときの
収縮率は９.７％であった。[Table 2] Thermal conductivity (kcal / m · h · ° C) Temperature (° C) Example product Comparative example product 200 0.04 0.05 300 300 0.05 0.0 400 400 0.07 0.10 500 0.0 09.13 Further , the shrinkage percentage when the Example product was heated to 600 ° C. for 1 hour was 4.7%, and similarly, the shrinkage percentage when heated to 900 ° C. was 9.7%.
【００２１】実施例２ コロイダルシリカ（濃度３０％）７００ｇに水１００ｇ
を加えて混合し、そこに重リン酸アルミニウムを２００
ｇ、撹拌しながら加えて均一な粘土状混合物を得た（こ
の混合物は、乾燥すると耐熱性かつ弾力性ある硬化物を
与える結合剤となる。）Example 2 100 g of water in 700 g of colloidal silica (concentration 30%)
Add and mix, and add aluminum diphosphate to 200
g, added with stirring to give a homogeneous clay-like mixture (this mixture, when dried, serves as a binder which gives a cured product with heat resistance and elasticity).
【００２２】次いでこの結合剤を添加した下記組成の抄
造液を調製した。 炭素繊維チョップ ２２.１重量部 セラミックファイバー ６６.４重量部 結合剤 １１.５重量部 水 ３２３３ 重量部 この抄造液を常法によりシート状に抄造し、１００℃の
乾燥機中で乾燥した。得られた厚さ１２mmのシート状断
熱材は、嵩密度が０.０８g/cm3、６０％圧縮後の回復率
は８０％であった。Next, a papermaking liquid having the following composition was prepared to which the binder was added. Carbon fiber chop 22.1 parts by weight Ceramic fiber 66.4 parts by weight Binder 11.5 parts by weight Water 3233 parts by weight This papermaking solution was made into a sheet by a conventional method and dried in a dryer at 100 ° C. The obtained sheet-shaped heat insulating material having a thickness of 12 mm had a bulk density of 0.08 g / cm 3 and a recovery rate of 80% after 60% compression.
【００２３】[0023]
【発明の効果】上述のように、本発明によれば石綿を含
まない無機繊維からなり軽量で圧縮復元性と断熱性に優
れ、シール材としての使用に適した断熱材が提供され
る。As described above, according to the present invention, there is provided a heat insulating material which is made of inorganic fibers containing no asbestos, is light in weight, has excellent compression recovery and heat insulating properties, and is suitable for use as a sealing material.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 館林 清夫 長野県長野市松代町東寺尾3893 (72)発明者 福田 力夫 長野県上水内郡牟礼村大字牟礼708−４ ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyoo Tatebayashi 3893 Higashiterao, Matsushiro-cho, Nagano City, Nagano Prefecture (72) Inventor Rikio Fukuda Muremura, Kamimizunai-gun Nagano 708-4
Claims (5)
イバーからなる無機繊維混合物ならびにこれらの無機繊
維同士を結合している少量の結合剤よりなる嵩密度０.
０３〜０.１６g/cm3のシート状成形物であることを特徴
とする繊維質断熱材。1. A bulk density of a mixture of inorganic fibers consisting of carbon fiber chops and ceramic fibers and a small amount of a binder which binds these inorganic fibers to each other.
A fibrous heat insulating material, which is a sheet-shaped molded product of 03 to 0.16 g / cm 3 .
ある請求項１記載の繊維質断熱材。2. The fibrous heat insulating material according to claim 1, wherein the carbon fiber chop is curved.
項１記載の繊維質断熱材。3. The fibrous heat insulating material according to claim 1, wherein the binder has elasticity.
る請求項１〜請求項３の何れかに記載の断熱材。4. The heat insulating material according to claim 1, wherein the fibrous heat insulating material is for a heat insulating seal.
ルミニウムを混合してなる結合剤を添加した水中に炭素
繊維チョップおよびセラミックファイバーを分散させ、
得られた無機繊維分散液を最終的に嵩密度が０.０３〜
０.１６g/cm3のかさ高なシートが形成されるような条件
で抄造し、形成された抄造物を加熱乾燥することを特徴
とする繊維質断熱材の製造法。5. A carbon fiber chop and a ceramic fiber are dispersed in water containing a binder obtained by mixing colloidal silica, water and aluminum biphosphate,
The resulting inorganic fiber dispersion finally has a bulk density of 0.03 to
A method for producing a fibrous heat insulating material, which comprises performing papermaking under conditions such that a bulky sheet of 0.16 g / cm 3 is formed, and heating the formed papermaking product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5046067A JP2630546B2 (en) | 1993-02-12 | 1993-02-12 | Insulating sealing material and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5046067A JP2630546B2 (en) | 1993-02-12 | 1993-02-12 | Insulating sealing material and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06279138A true JPH06279138A (en) | 1994-10-04 |
| JP2630546B2 JP2630546B2 (en) | 1997-07-16 |
Family
ID=12736662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5046067A Expired - Fee Related JP2630546B2 (en) | 1993-02-12 | 1993-02-12 | Insulating sealing material and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2630546B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6133181A (en) * | 1997-06-25 | 2000-10-17 | Wentworth; Bryce T. | Mixture for use in vacuum forming articles of ceramic fibers |
| JP2009113582A (en) * | 2007-11-05 | 2009-05-28 | Kaneka Corp | Heat insulation and sound-absorbing material using fiber assembly containing non-thermoplastic polyimide fibers |
| JP2014058765A (en) * | 2012-08-22 | 2014-04-03 | Oji Kinocloth Co Ltd | Method for producing carbon fiber nonwoven fabric for precursor of heat insulating material and method for producing heat insulating material |
| JP2017114731A (en) * | 2015-12-25 | 2017-06-29 | 株式会社サンケン | Carbon fiber heat insulation tile and manufacturing method thereof |
| CN108863278A (en) * | 2018-07-04 | 2018-11-23 | 洛阳热盈节能材料有限公司 | Waste and old inorfil regenerates the method for preparing low heat conducting fiber product |
| CN114751762A (en) * | 2022-05-24 | 2022-07-15 | 佛山市石金科技有限公司 | Method for preparing carbon fiber composite insulation board by using carbon fiber reclaimed materials |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0280380A (en) * | 1988-09-16 | 1990-03-20 | Taiyo Chem Kk | Ultrahigh-temperature heat-insulating tile |
| JPH0631177A (en) * | 1992-07-16 | 1994-02-08 | Matsushita Electric Ind Co Ltd | Production of catalytic member |
-
1993
- 1993-02-12 JP JP5046067A patent/JP2630546B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0280380A (en) * | 1988-09-16 | 1990-03-20 | Taiyo Chem Kk | Ultrahigh-temperature heat-insulating tile |
| JPH0631177A (en) * | 1992-07-16 | 1994-02-08 | Matsushita Electric Ind Co Ltd | Production of catalytic member |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6133181A (en) * | 1997-06-25 | 2000-10-17 | Wentworth; Bryce T. | Mixture for use in vacuum forming articles of ceramic fibers |
| JP2009113582A (en) * | 2007-11-05 | 2009-05-28 | Kaneka Corp | Heat insulation and sound-absorbing material using fiber assembly containing non-thermoplastic polyimide fibers |
| JP2014058765A (en) * | 2012-08-22 | 2014-04-03 | Oji Kinocloth Co Ltd | Method for producing carbon fiber nonwoven fabric for precursor of heat insulating material and method for producing heat insulating material |
| JP2017114731A (en) * | 2015-12-25 | 2017-06-29 | 株式会社サンケン | Carbon fiber heat insulation tile and manufacturing method thereof |
| CN108863278A (en) * | 2018-07-04 | 2018-11-23 | 洛阳热盈节能材料有限公司 | Waste and old inorfil regenerates the method for preparing low heat conducting fiber product |
| CN114751762A (en) * | 2022-05-24 | 2022-07-15 | 佛山市石金科技有限公司 | Method for preparing carbon fiber composite insulation board by using carbon fiber reclaimed materials |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2630546B2 (en) | 1997-07-16 |
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