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为了探讨胶原蛋白(HC)和相容剂马来酸酐接枝低密度聚乙烯(LDPE-g-MAH)对聚合物材料性能产生的影响,以低密度聚乙烯(LDPE)为基体,用共混挤出的方法制备了HC/LDPE复合材料和HC/LDPE-MAH复合材料,并将复合材料注塑成不同规格样条。通过力学性能测试、SEM和热分析等表征方法研究了HC和LDPE-g-MAH含量对HC/LDPE及HC/LDPE-MAH复合材料结构和性能的影响。结果表明:当HC加入量为5wt%时,HC/LDPE复合材料拉伸强度达到最大值15.824MPa;LDPE-g-MAH的加入可明显改善界面粘结性,提高材料力学性能及热稳定性,当HC含量为20wt%,LDPE-g-MAH含量为4wt%时,HC/LDPE-MAH复合材料的拉伸性能最优。
In order to investigate the effect of collagen (HC) and compatibilizer maleic anhydride grafted low density polyethylene (LDPE-g-MAH) on the properties of polymer materials, low density polyethylene (LDPE) Extrusion method HC / LDPE composites and HC / LDPE-MAH composites were prepared, and the composites were injection molded into different specifications spline. The effects of HC and LDPE-g-MAH content on the structure and properties of HC / LDPE and HC / LDPE-MAH composites were investigated by mechanical properties testing, SEM and thermal analysis. The results show that the tensile strength of HC / LDPE composites reaches 15.824MPa when the amount of HC is 5wt%. The addition of LDPE-g-MAH can significantly improve the interfacial adhesion and improve the mechanical properties and thermal stability of the composites. The tensile properties of HC / LDPE-MAH composite were the best when HC content was 20wt% and LDPE-g-MAH content was 4wt%.