竹粉/低密度聚乙烯复合材料的动态流变行为

曾春霞; 杨文斌; 徐建锋

doi:10.3969/j.issn.1000-2006.2014.01.019

曾春霞,杨文斌,徐建锋

南京林业大学学报（自然科学版） ›› 2014, Vol. 38 ›› Issue (01) : 110-114.

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南京林业大学学报（自然科学版） ›› 2014, Vol. 38 ›› Issue (01) : 110-114. DOI: 10.3969/j.issn.1000-2006.2014.01.019

研究论文

竹粉/低密度聚乙烯复合材料的动态流变行为

曾春霞,杨文斌^*,徐建锋

作者信息 +

Dynamic rheological behavior of bamboo flour/low density polyethylene composite

ZENG Chunxia, YANG Wenbin^*, XU Jianfeng

Author information +

文章历史 +

摘要

用超分散包覆剂(YB-510)对竹粉的流动性能进行改善处理,与低密度聚乙烯(LDPE)熔融复合,注塑成型制备竹粉/LDPE复合材料; 利用旋转流变仪研究添加剂对复合材料流变行为的影响。结果表明:添加助剂后复合体系比单纯竹粉/LDPE复合材料的线性黏弹性行为有更大的应变范围; 复合体系的储存模量随温度的升高呈下降趋势,偶联剂的加入可降低体系的储存模量,而润滑剂及抗氧剂对其影响效果不是很显著; 频率扫描表明,YB-510的加入可有效提高竹粉在基体中的分散均匀性,降低复合体系的黏度,使复合材料的加工性能得以改善。

Abstract

Bamboo flour was treated with scattered agent(YB-510)to improve its flow performance, and then it was composited with low density polyethylene(LDPE)by injection to prepare bamboo flour/LDPE composite materials. The rotating rheometerwas used to study the influences of various additives on the rheological behavior of composite materials. The results showed that: the composite system with additives had the greater strain range which belongs to linear viscoelastic behaviorcompared with pure bamboo flour/LDPE system, and the storage modulus of the composite system declined with the rise of temperature. The addition of coupling agent could reduce storage modulus of the system, but the effects of lubricant and antioxidant were not significant. Frequency sweep showed that YB-510 could effectively improve the uniform dispersion of bamboo flour in matrix, reduce the viscosity of the system, and improve the processing performance of composite material.

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曾春霞,杨文斌,徐建锋. 竹粉/低密度聚乙烯复合材料的动态流变行为[J]. 南京林业大学学报（自然科学版）. 2014, 38(01): 110-114 https://doi.org/10.3969/j.issn.1000-2006.2014.01.019

ZENG Chunxia, YANG Wenbin, XU Jianfeng. Dynamic rheological behavior of bamboo flour/low density polyethylene composite[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2014, 38(01): 110-114 https://doi.org/10.3969/j.issn.1000-2006.2014.01.019

中图分类号： T781 TQ317 TS959.2

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基金

收稿日期:2012-05-17 修回日期:2013-09-28
基金项目:国家自然科学基金项目(31170535,30771683)
第一作者:曾春霞,硕士生。*通信作者:杨文斌,教授。E-mail: fafuywb@163.com。
引文格式:曾春霞,杨文斌,徐建锋. 竹粉/低密度聚乙烯复合材料的动态流变行为[J]. 南京林业大学学报:自然科学版,2014,38(1):110-114.