无机组分对可瓷化聚氨酯泡沫复合材料性能的影响  

EFFECT OF INORGANIC COMPONENTS ON PROPERTIES OF CERAMIZABLE POLYURETHANE FOAM COMPOSITES

作　　者：石敏先[1] 贺栋培 沈益锋 姚亚琳[2] 黄志雄[1] SHI Min-xian;HE Dong-pei;SHEN Yi-feng;YAO Ya-lin(School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China;Beijing FRP Institute Composite Materials Limited Company,Beijing 102101,China)

机构地区：[1]武汉理工大学材料科学与工程学院,武汉430070 [2]北京玻钢院复合材料有限公司,北京102101

出　　处：《玻璃钢／复合材料》2018年第9期75-81,共7页Fiber Reinforced Plastics/Composites

基　　金：北京玻钢院复合材料有限公司青年科技创新基金项目(20161h0328)

摘　　要：采用聚醚多元醇、多异氰酸酯、发泡剂以及可陶瓷化无机填料制备了可瓷化聚氨酯泡沫复合材料。研究了低熔点玻璃粉、蛭石粉、可膨胀石墨以及聚磷酸铵等无机组分对可瓷化聚氨酯泡沫复合材料性能的影响。结果表明,随着低熔点玻璃粉用量的增加,材料的密度增大,导热系数变大,压缩强度下降。在蛭石粉用量不超过6份时,材料在高温处理后的收缩率随着蛭石粉用量的增加而减小。在加入阻燃剂可膨胀石墨和聚磷酸铵总量为9份并且二者配比为1∶1时,材料的氧指数为33。通过实验优化,最终确定了无机填料的最佳配比。Ceramizable polyurethane foam composites were prepared by using polyether polyols,polyisocyanates,foaming agents,and ceratable inorganic fillers.The effects of inorganic components such as glass frit,vermiculite powder,expandable graphite and ammonium polyphosphate on the properties of ceramizable polyurethane foam composites were studied.The results show that with the increase of the amount of glass frit,the density and the thermal conductivity of foam composites increase,but the compressive strength.When the amount of vermiculite powder is less than 6,the shrinkage of the composites after high temperature treatment decreases with the increase of the amount of vermiculite powder.When the total amount of expandable graphite and ammonium polyphosphate with the rate of 1∶1 is 9 phr,the limited oxygen index is 33.Finally,the optimized proportion of all components was determined by experiment study.

关 键 词：聚氨酯泡沫 无机填料 陶瓷化 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]