共查询到19条相似文献,搜索用时 515 毫秒
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简述了防火涂料的分类;从粘结剂和各种防火助剂(包括脱水成炭催化剂、成炭剂、发泡剂、防火填料和颜料等)方面综述了膨胀型防火涂料的研究进展,同时介绍了可膨胀石墨在膨胀型防火涂料中的应用特点;分析了膨胀型防火涂料的发展趋势. 相似文献
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超薄膨胀型钢结构防腐蚀防火涂料的研制 总被引:1,自引:0,他引:1
为了提高钢结构的防火及防腐蚀性能,通常在其表面涂覆防火及防腐蚀涂料.介绍了超薄膨胀型钢结构防火涂料的组成、配制工艺、技术指标和性能特点.通过对原材料的筛选和配方优化,研制成功室温快干、装饰性好、理化性能优、既防腐蚀又防火、室内外都可用的新型防火涂料.该技术已获得中国发明专利. 相似文献
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随着人们对消防安全问题的逐步重视,防火材料的研发与应用画然成为消防安全的关键。本文提出了防火材料的重要性。防火涂料以其防火性能优良、价格低廉,涂刷方便等优点,已经日益成为了建筑行业防火的重要组成部分。本论文针对以上问题制备了一种新型防火涂料,采用环氧树脂和水泥为成膜物质。 相似文献
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聚氨酯阻燃材料及其应用 总被引:2,自引:0,他引:2
介绍了聚氨酯材料的阻燃方法及低烟雾聚氨酯弹性体、阻燃剂微胶囊化等新的研究动 向,并概述了聚氨酯阻燃材料在建筑、运输、灌封胶、涂料等领域的应用。 相似文献
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分析和归纳了国内外透明膨胀型防火涂料的研究。国内在透明膨胀型防火涂料研究方面长期专注于氨基树脂体系,近年来则拓宽了研究领域,涉及环氧树脂、聚氨酯、聚丙烯酸酯等体系。国外涉及的树脂领域则比较全面。而最新趋势均为采用共聚、化学改性等方法合成集催化、成炭、发泡于一身的一体化膨胀型防火涂料,对提高涂层透明性有十分显著的作用。 相似文献
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The nano-concentrates and fiame retardant nano-coating were prepared in thhis study. The effect of nano-SiO2 on the corrosion resistance and fire resistance of ammonium polyphosphate-pentaerythritol-melamine (APP-PER-MEL) coating was investigated by differential thermal analysis (DTA), scanning electron microscopy
(SEM), effective thermal conductivity (λ/d), X-ray photoelectron spectroscopy (XPS) and fire protection test. The chemical action and endothermic effect of ammonium polyphosphate, pentaerythritol and melamine in traditional flame retardant coating were damaged by salt spray condition, whereas the flame-retardant additives in the nano-coating demonstrated the good chemical interaction in salt spray condition. The uniformly dispersed nano-SiO2 particles could improve corrosion resistance of the coating, and hence nano-coating could remain the good fire-resistant properties even after 500 h salt spray test. 相似文献
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基于传热学理论,对火灾作用下轻型钢构件(结构)的温度场类相似理论进行了研究,提出了简化后的实验模型炉内升温曲线表达式,并对表达式进行了数值模拟与实验验证,同时对有、无非膨胀型防火涂料保护的轻型钢构件(结构)温度场类相似理论影响因素进行了对比研究。结果表明:采用理论推导出时间相似常数为1的实验模型炉内升温曲线表达式,可使实验模型温度与ISO834标准升温曲线作用下的原型结构温度相同,即火灾作用下轻型钢构件(结构)温度场类相似理论成立;实验模型炉温与钢材密度、比热成负相关关系,与比表面积、尺寸相似常数成正相关关系,对于非膨胀型防火涂料保护的轻型钢构件(结构)来说,还与涂料热阻成负相关关系,与涂料厚度相似常数成正相关关系。 相似文献
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In this study the applicability of the new flame retardant for the intumescent fire retardant coating (IFRC) daubed on the top of the plywood was investigated. The following are the three kinds of flame retardants used in this study: (1) the artificial mesophase graphite powder (MGP), (2) the sericite (Al4(OH)4(KAlSi3O10)2), and (3) the graphite/sericite mixture. The desirable sizes of MGP and sericite were obtained by sieving, and then the surfaces of MGP and sericite were modified using a mechanofusion system. The MGP and sericite were characterized using a scanning electron microscope (SEM), a particle size analyzer, and an energy dispersive spectrum (EDS). The IFRC, which consisted of 19.8% of the flame retardant, 15% of the dehydrate agent, 18% of the foaming agent, 7.2% of the resin binder, and 40% of the solvent, was prepared and daubed on the top of the plywood. The test of the fire protection of IFRC was conducted using a flammability 45° tester. The IFRC with the flame retardant of the raw MGP (or sericite) was also prepared to study the effects of the size distribution and the configuration of the flame retardant on the capability of fire protection of IFRC. The mass ratio of MGP to sericite also substantially affects the capability of fire protection of IFRC. Most interestingly, the capability of the fire protection of IFRC with the flame retardant of the raw material is better than that of IFRC with the flame retardant of the sieved and surface-modified material. 相似文献