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中文摘要：
以纸纤维和低密度聚乙烯（LDPE）为原料,经配方改性后,利用双螺杆挤出机共混挤出造粒,最后注塑成型复合材料试样。研究了纸纤维的用量、相容剂LDPE-g-MAH的用量及发泡剂AC的用量对该复合材料力学性能的影响。结果表明：纸纤维添加质量分数为40%～50%时,复合材料的拉伸性能最佳,弯曲强度较好;LDPE-g-MAH的加入提高了复合材料的力学性能,且当LDPE-g-MAH添加质量分数为5%时,复合材料的综合性能较好;发泡后复合材料的密度下降,但冲击强度、拉伸强度、弯曲强度都有不同程度的提高,当AC添加质量分数为3%时,复合材料的综合性能较佳。
英文摘要：
The wood-plastic composite（WPC） has the characteristics of both the wood and plastic with a good ability of durations and obtains a wide application among different areas,especially in logistic packaging.A recycled corrugated paper board and LDPE were used to explore the effects of fiber content,compatibilizer LDPE-g-MAH,and forming agent AC on the performance of composites.The results show that：the optimum fiber loading remains 40%~50% to obtain a best tensile strength and bending strength;the addition of LDPE-g-MAH can improve the composite mechanical performance and the best level is 5% of total weight;the foamed composites have a low density and relative high mechanical properties,and the optimum content is about 3%.
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