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发明授权
CN103865025B 一种本质阻燃硬质聚氨酯泡沫塑料 有权

一种本质阻燃硬质聚氨酯泡沫塑料
摘要：
本发明公开了一种本质阻燃硬质聚氨酯泡沫塑料，其原料包括如下重量份的组分：聚醚多元醇和反应型含磷阻燃剂100～105重量份、胺类催化剂2.5～3.5重量份、叔胺类催化剂0.8～2.5重量份、匀泡剂0.8～2.5重量份、发泡剂0.5～1.5重量份、异氰酸酯135～150重量份和有机金属催化剂0.05～0.1重量份；其中所述反应型含磷阻燃剂为9,10?二氢?9?氧杂?10?磷杂菲基?4?羟基苯甲醇。本发明的泡沫塑料避免了类似橡胶的“喷霜”现象，将含有阻燃元素活性单体引入聚氨酯的主链、侧链进行改性，在不明显影响基体树脂的性能情况下，永久提高聚氨酯的阻燃性能。
摘要（英）：

The present invention provides a kind of inherent flame retardant rigid polyurethane foam. The production formula comprises 100 to 105 pbw of polyether polyol and reactive phosphorus-containing flame retardant, 2.5 to 3.5 pbw of amine catalyst, 0.8 to 2.5 pbw of tertiary amine catalyst, 0.8 to 2.5 pbw of foam stabilizer, 0.5 to 1.5 pbw of blowing agent, 135 to 150 pbw of isocyanates, and 0.05 to 0.1 pbw of organo-metallic catalyst, wherein the reactive phosphorus-containing flame retardant is 9,10-dihydro-9-oxa-10-phosphaphenanthrene-4-hydroxybenzyl alcohol. The active monomers containing flame retarding elements are introduced into main chain and side chain of PU for modification, which permanently improves the flame retardancy of PU without obvious effect on other performance of PU matrix.

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