摘要
采用经过氢氧化钠和甲苯二异氰酸酯-聚醚二元醇(TDI-PPG)表面处理的黄麻纤维织物作为增强体,以191#通用不饱和聚酯树脂(UP)作为基体,通过模压成型的方法制备了黄麻纤维增强UP复合材料。傅立叶变换红外光谱及X射线光电子能谱分析表明,TDI-PPG接枝于黄麻纤维上;通过热分析确定了复合材料的加工温度为160℃,根据生产经验确定成型压力为2 MPa;用短梁弯曲法测试了黄麻纤维接枝前、后UP复合材料的层间剪切强度,后者大于前者;随着黄麻纤维体积分数的增加,接枝黄麻纤维增强UP复合材料的力学性能得到提高,当黄麻纤维体积分数为54.44%时,接枝黄麻纤维增强UP复合材料的拉伸强度、弯曲强度和冲击强度分别为112.31 MPa,109.32 MPa和14.85 k J/m2。
The composites were prepared by mold compression employing jute fiber treated by toluene diisocyanate （TDI）- polyether diols （PPG） as reinforcements, and 191^# general unsaturated polyester resin （UP） as matrix. FTIR and XPS analysis indicate TDI-PPG is grafted onto the jute fiber. The temperature of compression molding is 160℃, which is determined by thermal analysis and the pressure of compression molding is 2 MPa, which is determined by production experience. Interlaminar shear strengths （ILSS） of before and after TDI-PPG grafting jute fiber reinforced composite were tested by short beam blending, the results show that the ILSS of the latter superior to that of the former. When the TDI-PPG grafting jute fiber volume fraction is 54.44%, the tensile strength, flexible strength and impact strength of TDI-PPG grafting jute fiber reinforced UP composite are 112.31 MPa, 109.32 MPa and 14.85 kJ / m^2, respectively. Mechanical properties of TDI-PPG grafting jute fiber reinforced UP composites increase with TDI-PPG grafting jute fiber volume raction increasing.
出处
《工程塑料应用》
CAS
CSCD
北大核心
2016年第2期46-50,共5页
Engineering Plastics Application
基金
2013年宁波职业技术学院院级课题(NZ12020)
关键词
黄麻纤维
不饱和聚酯树脂
力学性能
复合材料
界面性能
jute fiber
unsaturated polyester resin
mechanical property
composite
interfacial performance
