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发明公开
CN108715741A 阻燃聚氨酯密封胶 无效 - 驳回

阻燃聚氨酯密封胶
摘要：
本发明提出了一种阻燃聚氨酯密封胶，按照重量份数计算，包括以下组分：聚氨酯树脂65～85份、苯乙烯-丁二烯-苯乙烯嵌段共聚物6～12份、增塑剂2～5份、填料30～50份、交联剂2～8份、偶联剂1～10份、聚乙烯蜡1～3份、阻燃剂4～8份及紫外吸收剂1～3份；所述阻燃剂主要由纳米级镁铝水滑石与聚天冬氨酸改性制备得到。该阻燃聚氨酯密封胶不仅具有良好的阻燃性能，还具有很好的粘结性能。
摘要（英）：

The invention provides a flame retardant polyurethane sealant which contains the following components in parts by weight: 65-85 parts of polyurethane resin, 6-12 parts of styrene-butadiene-styrene segmented copolymer, 2-5 parts of a plasticizer, 30-50 parts of filler, 2-8 parts of a cross-linking agent, 1-10 parts of a coupling agent, 1-3 parts of polyethylene wax, 4-8 parts of a flame retardant and 1-3 parts of an ultraviolet absorbent. The flame retardant is mainly prepared by modification with nanoscale magnesia-alumina hydrotalcite and polyaspartic acid. The flame retardant polyurethane sealant not only has good flame retardant performance, but also has good bonding performance.

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