期刊论文

Study on Thermal Aging Properties of Bamboo Fiber-reinforced Polycaprolactone

中文

中国塑料

1001-9278

2017

31

4

17-23

10.19491/j.issn.1001-9278.2017.04.004

湖南省自然科学省市联合基金项目（14JJ5017） 湖南省科技计划项目（2015SK2069）

本校为第一机构

以聚己内酯（PCL）和竹纤维（BF）为原料,通过模压成型工艺制备了PCL/BF复合材料并研究其热老化性能。通过力学性能分析、红外光谱分析、流变实验分析等来研究BF质量分数、热老化时间、热老化温度对PCL/BF复合材料热老化性能的影响。结果表明,随着BF质量分数的增加,PCL/BF复合材料老化后力学性能的降幅呈先减小后增大的趋势;储能模量及损耗模量上升程度随BF质量分数的增加呈现减小的趋势;随着热老化温度的升高及热老化时间的延长,复合材料的力学性能均下降;热氧化作用使得复合材料内部大分子基团大量分解,分子排列遭到破坏,PCL分子链上的基团与水发生反应,发生水解进而逐渐断裂;复合材料的储能模...

Polycaprolactone (PCL)/bamboo fiber (BF) composites were prepared through a compression molding method and their thermal aging properties were studied.The effects of thermal aging time and temperature and the content of BF on the thermal aging properties of the composites were evaluated by mechanical tests,Fourier-transform infrared spectroscopic analysis and rheological analysis.The results indicated that the decrement in mechanical properties of PCL/BF composites after aging decreased as the content of BF increased initially and increased afterwards.The mechanical properties also decreased w...