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High-temperature expansion fireproof plugging material
The invention discloses a high-temperature expansion fireproof plugging material, and belongs to the technical field of materials. The high-temperature expansion fireproof plugging material comprises an alkali metal silicate hydrate and a rubber material wrapping the surface of the alkali metal silicate hydrate, and the rubber material comprises silicone rubber, a ceramic forming filler and a fireproof filler; the chemical formula of the alkali metal silicate hydrate is M2O.nSiO2.H2O, M is alkali metal, and n is 2-4. The silicone rubber is prepared by carrying out cross-linking polymerization reaction on vinyl silicone oil and a hydrogen-containing silicone oil cross-linking agent under the action of a platinum catalyst. The surface of the alkali metal silicate hydrate is wrapped with the silicone rubber, after high-temperature heating, the silicone rubber is subjected to free radical degradation under the action of a platinum catalyst, a SiOC structure is generated, the SiOC structure, the ceramic forming filler and the fireproof filler jointly act to form a foamed material, the toxicity of produced smoke is remarkably reduced to the AQ1 level, the quality retention rate and the expansion effect of the fireproof material are improved, and the fireproof material has good fireproof performance. The fireproof cable has the advantages of excellent fireproof performance and long service life.
本发明公开了一种高温膨胀防火封堵材料，属于材料技术领域。所述高温膨胀防火封堵材料，包括碱金属硅酸盐水合物、包裹在碱金属硅酸盐水合物表面的橡胶材料，所述橡胶材料包括硅橡胶、成瓷填料和防火填料；所述碱金属硅酸盐水合物的化学式为M2O·nSiO2·H2O，其中，M为碱金属，n为2～4。所述硅橡胶为在铂催化剂作用下乙烯基硅油和含氢硅油交联剂进行交联聚合反应制备得到。所述硅橡胶包裹在碱金属硅酸盐水合物表面，高温受热后，硅橡胶在铂催化剂的作用下进行自由基降解，生成了SiOC结构，其与成瓷填料、防火填料共同作用，形成泡沫状材料，显著降低产烟毒性至AQ1级别，提高了防火材料的质量留存率和膨胀效果，具有防火性能优异、使用寿命长的优点。
High-temperature expansion fireproof plugging material
The invention discloses a high-temperature expansion fireproof plugging material, and belongs to the technical field of materials. The high-temperature expansion fireproof plugging material comprises an alkali metal silicate hydrate and a rubber material wrapping the surface of the alkali metal silicate hydrate, and the rubber material comprises silicone rubber, a ceramic forming filler and a fireproof filler; the chemical formula of the alkali metal silicate hydrate is M2O.nSiO2.H2O, M is alkali metal, and n is 2-4. The silicone rubber is prepared by carrying out cross-linking polymerization reaction on vinyl silicone oil and a hydrogen-containing silicone oil cross-linking agent under the action of a platinum catalyst. The surface of the alkali metal silicate hydrate is wrapped with the silicone rubber, after high-temperature heating, the silicone rubber is subjected to free radical degradation under the action of a platinum catalyst, a SiOC structure is generated, the SiOC structure, the ceramic forming filler and the fireproof filler jointly act to form a foamed material, the toxicity of produced smoke is remarkably reduced to the AQ1 level, the quality retention rate and the expansion effect of the fireproof material are improved, and the fireproof material has good fireproof performance. The fireproof cable has the advantages of excellent fireproof performance and long service life.
本发明公开了一种高温膨胀防火封堵材料，属于材料技术领域。所述高温膨胀防火封堵材料，包括碱金属硅酸盐水合物、包裹在碱金属硅酸盐水合物表面的橡胶材料，所述橡胶材料包括硅橡胶、成瓷填料和防火填料；所述碱金属硅酸盐水合物的化学式为M2O·nSiO2·H2O，其中，M为碱金属，n为2～4。所述硅橡胶为在铂催化剂作用下乙烯基硅油和含氢硅油交联剂进行交联聚合反应制备得到。所述硅橡胶包裹在碱金属硅酸盐水合物表面，高温受热后，硅橡胶在铂催化剂的作用下进行自由基降解，生成了SiOC结构，其与成瓷填料、防火填料共同作用，形成泡沫状材料，显著降低产烟毒性至AQ1级别，提高了防火材料的质量留存率和膨胀效果，具有防火性能优异、使用寿命长的优点。
High-temperature expansion fireproof plugging material
一种高温膨胀防火封堵材料
QIU JIAN (author) / XING HAIPING (author) / JIANG ZHIWEI (author) / TANG TAO (author) / LI MINGGANG (author) / LIU JIE (author)
2024-05-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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