JPH0718249A - Thermally expandable inorganic fiber composite material - Google Patents
Thermally expandable inorganic fiber composite materialInfo
- Publication number
- JPH0718249A JPH0718249A JP16178093A JP16178093A JPH0718249A JP H0718249 A JPH0718249 A JP H0718249A JP 16178093 A JP16178093 A JP 16178093A JP 16178093 A JP16178093 A JP 16178093A JP H0718249 A JPH0718249 A JP H0718249A
- Authority
- JP
- Japan
- Prior art keywords
- binder
- inorganic fiber
- expansion
- inorganic
- composite material
- 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
- 239000012784 inorganic fiber Substances 0.000 title claims abstract description 21
- 239000002131 composite material Substances 0.000 title claims description 14
- 239000011230 binding agent Substances 0.000 claims abstract description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000010439 graphite Substances 0.000 claims abstract description 22
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 239000002253 acid Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000012744 reinforcing agent Substances 0.000 claims description 3
- 230000008961 swelling Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000002787 reinforcement Effects 0.000 abstract description 5
- 230000014759 maintenance of location Effects 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 238000013329 compounding Methods 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 239000003365 glass fiber Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 235000019353 potassium silicate Nutrition 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002023 wood Substances 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
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Landscapes
- Building Environments (AREA)
- Laminated Bodies (AREA)
- Sealing Material Composition (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、たとえば防火ドア用シ
ール材、セラミック触媒保持材、あるいはケーブル挿通
孔に対する延焼防止用の填隙材などに使用される熱膨張
性無機質繊維複合材に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-expandable inorganic fiber composite material used as, for example, a sealing material for fire doors, a ceramic catalyst holding material, or a gap filling material for preventing the spread of fire to a cable insertion hole. is there.
【０００２】[0002]
【従来の技術】この種の複合材、例えば防火ドア用シー
ル剤として、従来、特公昭５８−１２３１５号公報に示
されているように、膨張剤としての酸処理黒鉛１００ｗ
ｔ部、有機結合剤としてのポリクロロプレン２４ｗｔ
部、フエノール樹脂２０ｗｔ部、無機結合剤としての水
酸化アルミニウム４８ｗｔ部、アスベスト繊維１０ｗｔ
部、安定剤２ｗｔ部の混練物をガラス繊維からなる極薄
のシート状基材に層状に被覆したものが知られている。2. Description of the Related Art As a composite material of this kind, for example, a sealant for a fireproof door, as disclosed in Japanese Patent Publication No. 58-12315, acid-treated graphite 100w as an expanding agent has hitherto been used.
t part, 24 wt% of polychloroprene as an organic binder
Parts, 20 wt parts of phenolic resin, 48 wt parts of aluminum hydroxide as an inorganic binder, 10 wt% of asbestos fibers
It is known that an extremely thin sheet-like base material made of glass fiber is coated in a layered manner with a kneaded product of 1 part by weight and 2 parts by weight of a stabilizer.
【０００３】また、これとは別に、ガラス繊維布を基材
とし、これに水ガラス（水含有のケイ酸アルカリ）を充
填被覆したものも知られている。Separately from this, a glass fiber cloth as a base material, which is filled with water glass (water-containing alkali silicate), is also known.
【０００４】[0004]
【発明が解決しようとする課題】上記したような構成の
従来における複合材のうち、前者のものは、加熱時に補
強するものがなく、５００℃程度の加熱で形態が崩れる
傾向にあり、しかも単に混練物をシート状基材に被覆さ
せただけのものであるから、膨張の方向性がランダムで
あって、膨張性に劣り、高いシール性を期待することは
できない。また、後者のものは、高温時の形態保持性の
面で前者のものよりは優れているものの、高い膨張率が
得られないために、防火、防煙などのシール機能を十分
に発揮することができないものであった。Among the conventional composite materials having the above-mentioned structure, the former composite material has no reinforcement when heated, and tends to lose its shape when heated to about 500 ° C. Since the sheet-like base material is simply coated with the kneaded product, the direction of expansion is random, the expandability is poor, and high sealing properties cannot be expected. Also, the latter one is superior to the former one in terms of shape retention at high temperatures, but it cannot exhibit a high expansion coefficient, so it must fully exhibit the sealing function such as fire and smoke prevention. It was something that could not be done.
【０００５】本発明は上記の実情に鑑みてなされたもの
で、加熱時の膨張性能に優れ、高温時の形態保持も確実
で、シール機能の著しい向上を図ることができる熱膨張
性無機質繊維複合材を提供することを目的としている。The present invention has been made in view of the above-mentioned circumstances, and it is excellent in expansion performance at the time of heating, surely retains its shape at high temperature, and is capable of significantly improving the sealing function. The purpose is to provide wood.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明に係る熱膨張性無機質繊維複合材は、膨張剤
としての酸処理黒鉛と、耐熱補強剤としての無機繊維
と、耐熱結合剤としての無機結合材と、加熱前の形態保
持材としての有機結合材とからなる混合物を抄造法によ
りシート状に成形したものである。In order to achieve the above object, the heat-expandable inorganic fiber composite material according to the present invention comprises an acid-treated graphite as an expanding agent, an inorganic fiber as a heat-resistant reinforcing agent, and a heat-resistant binder. Is formed into a sheet by a paper-making method, which is a mixture of an inorganic binder as the above and an organic binder as the shape-retaining material before heating.
【０００７】また、上記熱膨張性無機質繊維複合材の配
合比率としては、上記酸処理黒鉛が３０〜７０ｗｔ％、
無機繊維が１５〜４５ｗｔ％、無機結合剤が１〜２０ｗ
ｔ％に設定することが好ましい。[0007] The heat-expandable inorganic fiber composite material is compounded in a proportion of 30 to 70 wt% of the acid-treated graphite,
Inorganic fiber 15-45wt%, inorganic binder 1-20w
It is preferably set to t%.
【０００８】[0008]
【作用】本発明によれば、酸処理黒鉛は加熱によって膨
張するが、このとき、この酸処理黒鉛だけを膨張させた
のでは、飛散して形態を保持することができないので、
元のシート形状を保持させながら膨張させる必要があ
る。このため、無機繊維と無機結合剤を所定量配合し、
これらを酸処理黒鉛と均一に分散してシート状に作成す
ることで、無機繊維が層状の基材となって上記酸処理黒
鉛を補強し、さらに無機結合材がシート全体を補強する
ことになるので、酸処理黒鉛の膨張は少し抑制される
が、シートの形態を保持したままでの膨張が可能とな
る。したがって、加熱状態でのシートの強度が保たれる
ので、高い膨張圧が得られるとともに、その膨張圧の長
時間にわたる維持が可能である。According to the present invention, the acid-treated graphite expands by heating, but at this time, if only the acid-treated graphite is expanded, it cannot scatter and maintain its shape.
It is necessary to expand while maintaining the original sheet shape. Therefore, a predetermined amount of inorganic fiber and inorganic binder are blended,
By uniformly dispersing these with acid-treated graphite to form a sheet, the inorganic fibers serve as a layered base material to reinforce the acid-treated graphite, and further, the inorganic binder reinforces the entire sheet. Therefore, the expansion of the acid-treated graphite is slightly suppressed, but it is possible to expand while maintaining the shape of the sheet. Therefore, since the strength of the sheet in the heated state is maintained, a high expansion pressure can be obtained and the expansion pressure can be maintained for a long time.
【０００９】また、請求項２のような配合比率からなる
混合物は、水を媒体として抄造法によって均一に分散さ
れる。とくに、この抄造法によると、薄片状（鱗状）の
酸処理黒鉛が一方向へ積層されるので、膨張方向が一定
の方向に揃うために、該酸処理黒鉛の膨張性をシール機
能の上で有効に生かすことができる。The mixture having the compounding ratio as set forth in claim 2 is uniformly dispersed by a papermaking method using water as a medium. In particular, according to this papermaking method, flaky (scaly) acid-treated graphite is laminated in one direction, so that the expansion directions are aligned in a certain direction. It can be effectively utilized.
【００１０】上記酸処理黒鉛は、黒鉛を硫酸や塩酸ある
いは発煙硝酸などで酸処理されたもので、その配合比率
は３０〜７０ｗｔ％にするのが好ましく、３０ｗｔ％未
満になると、膨張剤の不足によって所望の膨張力が得ら
れなくなり、また、７０ｗｔ％を越えると、シート状に
成形し加熱した時にわたのように膨らんで十分な剛性が
得られず、機械的強度の点で不安が残る。また、無機繊
維としては、セラミック繊維、例えばＳＣバルクなどが
使用される。この無機繊維の配合比率は１５〜４５ｗｔ
％にするのが好ましく、１５ｗｔ％未満では、加熱後の
強度が低下し、また、４５ｗｔ％を越えると、膨張特性
が抑制される。The acid-treated graphite is obtained by subjecting graphite to acid treatment with sulfuric acid, hydrochloric acid, fuming nitric acid or the like, and the compounding ratio thereof is preferably 30 to 70 wt%, and when it is less than 30 wt%, the expansion agent is insufficient. As a result, the desired expansion force cannot be obtained, and when it exceeds 70 wt%, it swells like a cotton when it is formed into a sheet and heated, and sufficient rigidity cannot be obtained, and anxiety remains in terms of mechanical strength. Further, as the inorganic fiber, a ceramic fiber such as SC bulk is used. The compounding ratio of this inorganic fiber is 15 to 45 wt.
%, The strength after heating is lowered when it is less than 15 wt%, and the expansion characteristics are suppressed when it exceeds 45 wt%.
【００１１】さらに、無機結合剤としては、例えばシリ
カゾルやアルミナゾルが好適であり、その配合比率は５
〜２５ｗｔ％にするのが好ましい。５ｗｔ％未満であれ
ば、加熱後の機械的強度が低くなり、また、２５ｗｔ％
を越えると、膨張特性の低下が著しい。さらにまた、有
機結合剤としては、ゴムラテックス（スミカフレック
ス）などが使用され、その配合比率は１〜２０ｗｔ％が
好ましく、１ｗｔ％未満では、初期の取り扱い性におい
ての効果がほとんど発揮されず、また、２０ｗｔ％を越
えると、加熱時に焼失し、機械的強度が低下する。Furthermore, as the inorganic binder, for example, silica sol or alumina sol is suitable, and the compounding ratio thereof is 5
It is preferably about 25 wt%. If it is less than 5 wt%, the mechanical strength after heating will be low, and 25 wt%
If it exceeds, the deterioration of the expansion property is remarkable. Furthermore, as the organic binder, rubber latex (Sumikaflex) or the like is used, and the compounding ratio thereof is preferably 1 to 20 wt%, and if it is less than 1 wt%, the effect on the initial handling property is hardly exhibited, and If it exceeds 20 wt%, it will be burnt out during heating and the mechanical strength will decrease.
【００１２】[0012]
【実施例】以下、本発明の実施例を図面にもとづいて説
明する。図１は本発明に係る熱膨張性無機質繊維複合材
を組み込んだ防火ドアの一部を破断して示すものであ
る。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partially cutaway view of a fire door incorporating the thermally expandable inorganic fiber composite material according to the present invention.
【００１３】図１において、防火ドア１は、内外両側の
外装板２，３間に断熱材４が充填されており、木口被覆
板５，６の内側に熱膨張性無機質繊維複合材Ｍを配設し
ている。この複合材Ｍは、火災時に膨張し、その膨張力
で上記外装板２，３と被覆板５，６との接着を引き剥が
し、被覆板５，６をドア枠（図示せず）に密着させるよ
うに働くものである。この複合材Ｍの構成を以下の実施
例に示す。In FIG. 1, a fire door 1 is filled with a heat insulating material 4 between exterior plates 2 and 3 on both inner and outer sides, and a heat-expandable inorganic fiber composite material M is arranged inside the wood mouth covering plates 5 and 6. I have set up. The composite material M expands at the time of fire, and the expansion force peels off the adhesion between the exterior plates 2 and 3 and the covering plates 5 and 6 to bring the covering plates 5 and 6 into close contact with a door frame (not shown). It works like this. The structure of this composite material M is shown in the following examples.
【００１４】実施例１ 膨張剤としての発煙硝酸で処理した黒鉛を５５ｗｔ％、
耐熱補強剤としてのセラミック繊維（ＳＣバルク １２
６０−Ｄ 新日化製）を２５ｗｔ％、耐熱結合剤として
の無機結合剤（アルミナゾル ２００ 日産化学製）を
１０ｗｔ％、加熱前形態保持剤としての有機結合剤（ス
ミカフレックス ９００ 住友化学製）を１０ｗｔ％の
配合比で混合し、これを抄造して、かさ密度０．７３ｇ
／ｃｍ3、厚さ２．５４mmのシート状に成形した。Example 1 55 wt% of graphite treated with fuming nitric acid as a swelling agent,
Ceramic fiber as heat resistant reinforcement (SC Bulk 12
60-D Shin Nikka) 25 wt%, inorganic binder (alumina sol 200 Nissan Chemical) 10 wt% as a heat resistant binder, organic binder (Sumikaflex 900 Sumitomo Chemical) as a pre-heating shape retainer Mix at a compounding ratio of 10 wt%, make a paper, and have a bulk density of 0.73 g.
/ Cm 3 and a thickness of 2.54 mm.
【００１５】実施例２ 硫酸で処理した黒鉛を５５ｗｔ％、セラミック繊維（Ｓ
Ｃバルク １２６０−Ｄ２ 新日化製）を２５ｗｔ％、
耐熱結合剤としての無機結合剤（アルミナゾル２００
日産化学製）を１０ｗｔ％、加熱前形態保持剤としての
有機結合剤（スミカフレックス９００ 住友化学製）を
１０ｗｔ％の配合比で混合し、これを抄造して、かさ密
度０．７３ｇ／ｃｍ3 、厚さ２．５４mmのシート状に成
形した。Example 2 55 wt% graphite treated with sulfuric acid, ceramic fiber (S
25% by weight of C bulk 1260-D2 manufactured by Shin Nikka,
Inorganic binder as heat-resistant binder (alumina sol 200
10% by weight of Nissan Chemical Co., Ltd. and 10% by weight of an organic binder (Sumikaflex 900 Sumitomo Chemical Co., Ltd.) as a pre-heating morphological agent are mixed at a compounding ratio of 10% by weight, and this is made into paper to have a bulk density of 0.73 g / cm 3 , And formed into a sheet having a thickness of 2.54 mm.
【００１６】比較例１ 発煙硝酸で処理した黒鉛を５０ｗｔ％、有機結合剤とし
てのポリクロロプレンを１２ｗｔ％、フエノール樹脂を
１０ｗｔ％、無機結合剤としての水酸化アルミニウムを
２４ｗｔ％、ガラス繊維を４ｗｔ％の配合比で、これら
の混練物をガラス繊維からなる極薄のシートに層状に被
覆して、かさ密度０．９１ｇ／ｃｍ3 、厚さ２．５４mm
のシート状に成形した。Comparative Example 1 50 wt% graphite treated with fuming nitric acid, 12 wt% polychloroprene as an organic binder, 10 wt% phenol resin, 24 wt% aluminum hydroxide as an inorganic binder, and 4 wt% glass fiber. An extremely thin sheet made of glass fibers was coated in layers at a blending ratio of to obtain a bulk density of 0.91 g / cm 3 and a thickness of 2.54 mm.
Was formed into a sheet shape.
【００１７】比較例２ ガラス繊維布を基材として、水ガラス（水含有のケイ酸
アルカリ）を充填し、その表面をエポキシ樹脂で被覆し
た。Comparative Example 2 Using a glass fiber cloth as a base material, water glass (water-containing alkali silicate) was filled, and the surface thereof was coated with an epoxy resin.
【００１８】実施例１，２と比較例１，２の評価とし
て、まずそれぞれの試料を電気炉内で加熱した際の自由
膨脹率の測定を行なった。その結果を図４の図表１に示
す。図４の図表１から明らかなように、実施例１，２の
ものは、無機結合剤（アルミナゾル）と無機繊維（セラ
ミック繊維）の補強により、高い自由膨張量を示すこと
が判った。これに対して、比較例１のものは、加熱時に
補強するものがなく、５００℃で形態が崩れてしまう。
また、発煙硝酸処理黒鉛は１５０℃付近から膨張を開始
し、硫酸処理黒鉛の方が大きな値を示している。水ガラ
スは１２５℃付近から膨張を開始する。As an evaluation of Examples 1 and 2 and Comparative Examples 1 and 2, first, the free expansion coefficient was measured when each sample was heated in an electric furnace. The results are shown in Table 1 of FIG. As is clear from Table 1 in FIG. 4, it was found that those of Examples 1 and 2 exhibited a high free expansion amount due to the reinforcement of the inorganic binder (alumina sol) and the inorganic fiber (ceramic fiber). On the other hand, in Comparative Example 1, there is nothing to reinforce at the time of heating, and the shape collapses at 500 ° C.
Further, the fuming nitric acid-treated graphite started to expand at around 150 ° C., and the sulfuric acid-treated graphite showed a larger value. Water glass begins to expand at around 125 ° C.
【００１９】ついで、上記実施例１，２と比較例１，２
の評価として、１７ＫＰａの面圧を負荷した状態で昇温
速度１１℃／分で昇温させた時の各試料の膨張量の測定
を行なった。図２はそのための測定装置を示し、同図に
おいて、２１，２２は電気炉のヒータ２３で加熱される
試料Ｍを挟持する上下一対の石英棒であり、上記の昇温
速度で昇温する試料Ｍが膨張を開始すると、石英棒２１
を押し上げるので、その変位をダイヤルゲージ２４で測
定するようになしたものであり、上記ダイヤルゲージ２
４と石英棒２１の荷重で試料Ｍには、１７ＫＰａの負荷
が加わるようになっている。この測定結果を図５の図表
２に示す。Next, Examples 1 and 2 and Comparative Examples 1 and 2
As the evaluation, the amount of expansion of each sample was measured when the temperature was raised at a temperature rising rate of 11 ° C./min while a surface pressure of 17 KPa was applied. FIG. 2 shows a measuring device therefor. In FIG. 2, reference numerals 21 and 22 denote a pair of upper and lower quartz rods sandwiching a sample M heated by a heater 23 of an electric furnace. When M starts to expand, the quartz rod 21
Since it is pushed up, the displacement is measured by the dial gauge 24.
The load of 4 and the quartz rod 21 applies a load of 17 KPa to the sample M. The measurement results are shown in Table 2 of FIG.
【００２０】図５の図表２から明らかなように、実施例
１，２のものは、無機結合剤と無機繊維の補強によりシ
ート状の形態を損なうことなく膨張し、しかも、その膨
張量も高いレベルで安定することが判った。一方、比較
例１のものは、高温時に形態を維持することができず、
３２０℃をピークにして膨張量が低下する。また、比較
例２のものでは、膨張量がかなり低い結果となってい
る。膨張量が０〜１００％まで膨張する時間に関して、
発煙硝酸で処理した黒鉛では１００秒要し、硫酸で処理
した黒鉛、水ガラスでは１５０秒要している。この結果
から、実施例１，２のものが大きな膨張量で広い隙間の
シールに追従できるほか、高い加熱温度で長時間にわた
り保形性が維持されるので、外気の圧力に対して隙間を
安定的に充填できることが明らかとなった。As is clear from Table 2 in FIG. 5, the products of Examples 1 and 2 expand due to the reinforcement of the inorganic binder and the inorganic fiber without impairing the sheet form, and the expansion amount is also high. It turned out to be stable at the level. On the other hand, in Comparative Example 1, the shape could not be maintained at high temperature,
The expansion amount decreases at a peak of 320 ° C. Further, in Comparative Example 2, the expansion amount is considerably low. With regard to the time that the expansion amount expands from 0 to 100%,
Graphite treated with fuming nitric acid required 100 seconds, and graphite treated with sulfuric acid and water glass required 150 seconds. From these results, the examples 1 and 2 can follow the seal of a wide gap with a large expansion amount, and the shape retention property is maintained at a high heating temperature for a long time, so that the gap is stable against the pressure of the outside air. It has become clear that they can be filled in a desired manner.
【００２１】最後に、実施例１，２と比較例１，２の評
価として、各試料Ｍの厚さに合せた隙間に該試料Ｍを充
填し、一定の昇温速度で試料Ｍを昇温させた時の発生膨
張圧の測定を行なった。図３はそのための測定装置を示
し、同図に示すように、電気炉内のヒータ３１で加熱さ
れる試料Ｍを、その厚さに合うように設定された上下の
石英棒３２，３３の隙間ｇに充填し、一定の昇温速度１
１℃／分で試料Ｍが膨張を開始した際の膨張圧をロード
セル３４で測定するようにしたものである。この測定結
果を図６の図表３に示す。Finally, as an evaluation of Examples 1 and 2 and Comparative Examples 1 and 2, the sample M is filled in a gap corresponding to the thickness of each sample M, and the sample M is heated at a constant heating rate. The expansion pressure generated when the pressure was applied was measured. FIG. 3 shows a measuring device therefor. As shown in FIG. 3, a sample M heated by a heater 31 in an electric furnace is provided with a gap between upper and lower quartz rods 32 and 33 set to match its thickness. Filling g to a constant heating rate 1
The expansion pressure when the sample M starts expanding at 1 ° C./min is measured by the load cell 34. The measurement results are shown in Table 3 of FIG.
【００２２】図６の図表３から明らかなように、実施例
１，２のものは高い膨張圧を発生し得るので、図１に示
すような防火ドアのシール材として使用した際、火災時
に被覆板５，６を押し広げる力が長時間にわたって発生
し続け、有効な密封効果を発揮させることができ、ま
た、膨張圧の低下がないことから、例えばセラミック触
媒の保持材としても有効に使用することができる。As is clear from Table 3 in FIG. 6, the ones of Examples 1 and 2 can generate a high expansion pressure. Therefore, when used as a seal material for a fire door as shown in FIG. Since the force to spread the plates 5 and 6 continues to be generated for a long time, an effective sealing effect can be exhibited, and since the expansion pressure does not decrease, it is also effectively used as a holding material for a ceramic catalyst, for example. be able to.
【００２３】[0023]
【発明の効果】以上のように、本発明によれば、膨張剤
としての酸処理黒鉛に、補強剤としての無機繊維や無機
結合剤、さらには、加熱前の形態保持剤としての有機結
合剤を加え、これらを抄造してシート状に成形したの
で、膨張の方向性が一定となり、形崩れのおそれなく高
い膨張特性が得られるとともに、補強作用によって加熱
状態での高い膨張圧が確保されて、防火ドアなどの填隙
用として優れたシール機能を発揮させることができる。As described above, according to the present invention, acid-treated graphite as a swelling agent, an inorganic fiber or an inorganic binder as a reinforcing agent, and an organic binder as a shape-retaining agent before heating. In addition, since these are formed into a sheet by papermaking, the direction of expansion is constant, high expansion characteristics can be obtained without fear of deformation, and a high expansion pressure in the heated state is secured by the reinforcing action. It is possible to exert an excellent sealing function for gap filling of fire doors and the like.
【図１】本発明の一実施例による熱膨張性無機質繊維複
合材を組み込んだ防火ドアの一部を破断して示す斜視図
である。FIG. 1 is a partially cutaway perspective view of a fire door incorporating a thermally expandable inorganic fiber composite material according to an embodiment of the present invention.
【図２】膨張率の測定装置を示す概略構成図である。FIG. 2 is a schematic configuration diagram showing an expansion coefficient measuring device.
【図３】膨張圧の測定装置を示す概略構成図である。FIG. 3 is a schematic configuration diagram showing an expansion pressure measuring device.
【図４】自由膨張率の測定結果を示す図表である。FIG. 4 is a chart showing measurement results of free expansion coefficient.
【図５】負荷時の膨張率の測定結果を示す図表である。FIG. 5 is a chart showing the measurement results of the expansion coefficient under load.
【図６】発生膨張圧の測定結果を示す図表である。FIG. 6 is a chart showing measurement results of generated expansion pressure.
Claims (2)
剤としての無機繊維と、耐熱結合剤としての無機結合材
と、加熱前の形態保持材としての有機結合材とからなる
混合物を抄造法によりシート状に成形したことを特徴と
する熱膨張性無機質繊維複合材。1. Papermaking a mixture of acid-treated graphite as a swelling agent, inorganic fibers as a heat-resistant reinforcing agent, an inorganic binder as a heat-resistant binder, and an organic binder as a shape-retaining material before heating. A heat-expandable inorganic fiber composite material, which is formed into a sheet by a method.
機繊維を１５〜４５ｗｔ％、無機結合剤を５〜２５ｗｔ
％、有機結合剤を１〜２０ｗｔ％に設定してなる請求項
１の熱膨張性無機質繊維複合材。2. The acid-treated graphite is 30 to 70 wt%, the inorganic fiber is 15 to 45 wt%, and the inorganic binder is 5 to 25 wt%.
%, The organic binder is set to 1 to 20 wt%, and the thermally expandable inorganic fiber composite material according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5161780A JP2516556B2 (en) | 1993-06-30 | 1993-06-30 | Sealant made of heat-expandable inorganic fiber composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5161780A JP2516556B2 (en) | 1993-06-30 | 1993-06-30 | Sealant made of heat-expandable inorganic fiber composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0718249A true JPH0718249A (en) | 1995-01-20 |
| JP2516556B2 JP2516556B2 (en) | 1996-07-24 |
Family
ID=15741769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5161780A Expired - Lifetime JP2516556B2 (en) | 1993-06-30 | 1993-06-30 | Sealant made of heat-expandable inorganic fiber composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2516556B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07102242A (en) * | 1993-10-01 | 1995-04-18 | Nippon Pillar Packing Co Ltd | Sheet gasket |
| CN1070217C (en) * | 1993-12-14 | 2001-08-29 | 日本皮拉工业株式会社 | Sealing raw material made of expanded graphite, manufacturing method thereof, and gasket for sealing |
| JP2003034994A (en) * | 2001-07-26 | 2003-02-07 | Bekku Kk | Thermal insulation structure |
| JP2008045298A (en) * | 2006-08-11 | 2008-02-28 | Shimizu Corp | Fireproof coating |
| US7488544B2 (en) * | 2001-11-19 | 2009-02-10 | Stanton Advanced Ceramics, Llc | Thermal shock resistant ceramic composites |
| US9109958B2 (en) | 2007-12-27 | 2015-08-18 | Ihi Corporation | Multi-chamber heat treatment device and temperature control method |
| US10060668B2 (en) | 2006-03-20 | 2018-08-28 | Temptronic Corporation | Temperature-controlled enclosures and temperature control system using the same |
| WO2020183945A1 (en) | 2019-03-13 | 2020-09-17 | 株式会社クラレ | Space filling material and space filling structure, and methods for using those |
| CN112430055A (en) * | 2020-11-27 | 2021-03-02 | 山东鲁阳节能材料股份有限公司 | Expansion type inorganic paper and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6153674A (en) * | 1998-01-30 | 2000-11-28 | 3M Innovative Properties Company | Fire barrier material |
-
1993
- 1993-06-30 JP JP5161780A patent/JP2516556B2/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07102242A (en) * | 1993-10-01 | 1995-04-18 | Nippon Pillar Packing Co Ltd | Sheet gasket |
| CN1070217C (en) * | 1993-12-14 | 2001-08-29 | 日本皮拉工业株式会社 | Sealing raw material made of expanded graphite, manufacturing method thereof, and gasket for sealing |
| JP2003034994A (en) * | 2001-07-26 | 2003-02-07 | Bekku Kk | Thermal insulation structure |
| US7488544B2 (en) * | 2001-11-19 | 2009-02-10 | Stanton Advanced Ceramics, Llc | Thermal shock resistant ceramic composites |
| US7666344B2 (en) | 2001-11-19 | 2010-02-23 | Stanton Advanced Ceramics, Inc. | Thermal shock resistant ceramic composites |
| US10060668B2 (en) | 2006-03-20 | 2018-08-28 | Temptronic Corporation | Temperature-controlled enclosures and temperature control system using the same |
| JP2008045298A (en) * | 2006-08-11 | 2008-02-28 | Shimizu Corp | Fireproof coating |
| US9109958B2 (en) | 2007-12-27 | 2015-08-18 | Ihi Corporation | Multi-chamber heat treatment device and temperature control method |
| WO2020183945A1 (en) | 2019-03-13 | 2020-09-17 | 株式会社クラレ | Space filling material and space filling structure, and methods for using those |
| KR20210132133A (en) | 2019-03-13 | 2021-11-03 | 주식회사 쿠라레 | Space filling materials and space filling structures, and methods of using them |
| EP3939761A4 (en) * | 2019-03-13 | 2022-12-07 | Kuraray Co., Ltd. | SPACE-FILLING MATERIALS AND STRUCTURES AND METHODS OF USE THEREOF |
| US12109742B2 (en) | 2019-03-13 | 2024-10-08 | Kuraray Co., Ltd. | Space filling material and space filling structure, and methods for using those |
| CN112430055A (en) * | 2020-11-27 | 2021-03-02 | 山东鲁阳节能材料股份有限公司 | Expansion type inorganic paper and preparation method thereof |
| CN112430055B (en) * | 2020-11-27 | 2022-05-13 | 山东鲁阳节能材料股份有限公司 | Expansion type inorganic paper and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2516556B2 (en) | 1996-07-24 |
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