聚乙烯基木塑复合材料蠕变量影响因素分析

摘要

在室温恒定的情况下,主要研究了原材料配比、材料制备工艺参数在不同载荷条件下对木塑复合材料24 h蠕变性能的影响.结果表明,在24 h蠕变试验中各载荷下影响蠕变量的优势因素各不相同,但木塑比都为第一显著因素;载荷为30％弯曲强度时,木塑比与螺杆转速为显著因素;载荷为50％弯曲强度时,木塑比为显著因素;载荷为70％弯曲强度时,只有木塑比为极显著因素.%The effects of raw material ratio and process parameters and material preparation process parameters on the 24 h creep properties of PE-based wood-plastic composites at different loads and constant room temperature.The results indicated that the wood/plastic ratio was the first significant factor,although there are different superior factors on the creep variable of the composites during the 24 h creep tests.Furthermore,the wood plastic ratio and the rotation speed of the screw are significant factors at the load of 30 ％ bending strength,and the wood/plastic ratio was the significant factor at the load of 50 ％ bending strength.However,only the wood/plastic ratio became the most significant factor at the load of 70 ％ bending strength.