5 . schapery model can be used to calculate the cte of composite when temperature is lower ( 50 - 100c ) and kerner model can be used when temperature is higher ( 300 - 450c ) . the cte of composite will increased more quickly than that by three models when temperature is between ( 100 - 300c ) 复合材料的热膨胀系数在温度较低( 50 100 )时可用schapery模型计算,在高温( 300 450 )时可用kerner模型计算,在100 300之间则随温度升高增加的很快,且与所有模型分析结果不一致。