The invention relates to an environment-friendly exterior wall anti-seepage flame retardant ultra-low temperature insulation material. Polyurethane plastic has a very wide range of uses, especially as insulation materials, it has been favored by people. The components and weight of a polyurethane foaming agent comprises: 20 ~ 40, 130 ~ 500 100 isocyanate, polyether 150, crosslinking agent 10 ~ 15, 3 ~ 5 stabilizer catalyst 8 ~ 12, 15 ~ 40, flame retardant. The present invention has excellent ultra low temperature insulation performance, and under the condition of 196 DEG C, the thermal conductivity is 9~10 '3W / m.k, and the coefficient of linear expansion is 80~100 (` 10' 6 '). The polyurethane of the invention can be sprayed on the surface of the metal container by the conventional spraying method, and has better bonding effect with the surface of the metal container. The present invention has good compatibility should be the performance of crosslinking agent and crosslinking properties with isocyanate isocyanate was structurally modified, therefore, the invention of the polyurethane in the ultra-low temperature heat insulation performance, while fluorine material does not contain formula, as a kind of environmentally friendly ultra low temperature polyurethane insulation materials, can be used as insulation material in liquid nitrogen tank transport.
【技术实现步骤摘要】
本专利技术涉及一种聚氨酯,具体地说涉及一种环保型外墙防渗阻燃超低温保 温材料。聚氨酯塑料具有十分广泛的用途,尤其作为保温材料,更是得到了人 们的青睐。技术背景目前已有许多专利和文献公开了具有各种性能的聚氨酯塑料,如中国专利 CN1105676A报导了一种加入溴类物质而具有阻燃性能的聚氨酯预聚体,但是目 前广泛使用的聚氨酯保温材料还存在一些不足之处,其低温下的保温性能还不 能满足某些领域,如在196'C下液氮大容器贮运的需要,其低温下的导热系数较 大,线膨胀系数也较大,因此不能满足有关部门的要求。
技术实现思路
本专利技术需要解决的技术问题在于公开一种超低温保温聚氨酯,以克服现有 技术的缺陷,满足有关部门的需要。本专利技术环保型外墙防渗阻燃超低温保温材 料,其特征在于组分和重量份数发泡剂 20 40异氰酸酯130 500聚醚 100-150交联剂 10 15稳定剂 3 5催化剂 8 12阻燃剂 15 40优选的为发泡剂 22 30异氰酸酯 160 450聚醚 120 140交联剂 3 8稳定剂 3 4 催化剂 7 9 阻燃剂 20 35。所说的发泡剂为141b, ...
【技术保护点】
环保型外墙防渗阻燃超低温保温材料,其特征在于,组分和重量份数包括: 发泡剂 20~40, 异氰酸酯 130~500, 聚醚 100~150, 交联剂 10~15, 稳定剂 3~5, 催化剂 8 ~12 阻燃剂 15~40。
【技术特征摘要】
【专利技术属性】
技术研发人员:邢伟英,张敏,
申请(专利权)人:上海凯耳聚氨酯有限公司,
类型:发明
国别省市:31[中国|上海]
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