粉煤灰对聚氨酯硬质泡沫性能的影响  

The effect of fly ash on the property of rigid polyurethane foams

作　　者：杜峰 项尚林 方显力 邹巍巍 章文贵 梅静梁 

机构地区：[1]江苏瑞丰科技实业有限公司,江苏南京210009

出　　处：《新型建筑材料》2014年第4期15-17,29,共4页New Building Materials

基　　金：南京市科技型中小企业创新基金(2011创基020)

摘　　要：采用聚醚多元醇、多亚甲基多苯基多异氰酸酯(PAPI)、泡沫稳定剂、催化剂、高效阻燃剂、发泡剂、粉煤灰等原料通过一步法制备了聚氨酯硬质泡沫材料,研究了不同粉煤灰添加比例的聚氨酯硬质泡沫材料的压缩强度、泡孔结构、导热系数和阻燃指数。结果表明,随着粉煤灰用量的增加,聚氨酯硬泡的压缩强度出现先升高后降低的趋势;导热系数呈递增趋势;极限氧指数也呈上升趋势,在粉煤灰用量占白料总质量10%时,压缩性能最佳。The rigid polyurethane foams were prepared using polyether polyols,polymethylene polyphenyl polyisocyanate（PAPI）, foam stabilizer,catalyst,efficient flame retardant,foaming agent and fly ash as raw materials. The effects of the dosage of fly ash on the properties of. the rigid polyurethane foams such as compression strength, pore structure,heat conductivity coefficient and limit oxygen index were studied. The results showed that the compression strength first increased and then decreased with increasing the dosage of fly ash and the maximum compression strength reached optimum while the dosage of fly ash was added to 10% of the total quality white material. While the dosage of fly ash increased,the heat conductivity coefficient of the rigid polyurethane foams increased and the limit oxygen index also increased.

关 键 词：聚氨酯硬泡 粉煤灰 阻燃 

分 类 号：TU55[建筑科学—建筑技术科学] TU111.24