摘要
以硅烷偶联剂KH-560改性后的废环氧模塑料(EMC)粉末为填料,通过与聚丙烯(PP)熔融共混、模压成型,制备废EMC/PP复合材料。红外光谱和X射线衍射图谱表明,改性反应中KH-560与废EMC粉末之间相互作用明显,且经过改性得到的废EMC粉末与原粉末相比,物相结构没有显著的变化。研究了改性前后,不同改性剂比例、不同废EMC粉末含量对复合材料力学性能的影响。结果表明,改性剂体积为20 m L时,填料为30%改性废EMC粉末的复合材料的拉伸强度和冲击强度最好。其中与添加未改性废EMC粉末的复合材料相比,其拉伸强度增加13. 3%。说明改性反应明显提高了废EMC粉末与PP之间的相容性,改性后的废EMC粉末有利于复合材料强度提升。改性前后的复合材料表面电阻率和体积电阻率没有明显变化,具有一定的防静电性。
Waste epoxy molding compound （WEMC）/polypropylene （PP） composites were prepared by melt blending and press moulding with silane coupling agent KH-560 modified WEMC powder as filler. The results from Fourier transform infrared spectroscopy （FFIR） and X-ray diffraction spectra show that the interaction between KH-560 and waste EMC powder in the modified reaction is obvious, and the modified WEMC powder has no significant change in phase structure compared with the original powder. The effects of different KH-560 ratio and different modified WEMC content before and after modification on the mechanical performance of the composites were also investigated. The results show that the tensile strength and impact strength of the composites are the best when the volume of KH-560 is 20 mL and the ratio of modified WEMC is 30wt%, and the tensile strength is increased by 13.3% compared with the composite with the addition of unmodified WEMC powder. It is indicated that the modified reaction obviously improves the compatibility between waste EMC powder and PP, and the modified WEMC powder is beneficial to the strength of the composites. Surface resistance and volume resistivity of the composites filled with modified WEMC and unmodified WEMC do not change significantly, and the WEMC/PP composite has good antistatic resistance.
作者
么琳
田晓晓
李发超
张志明
YAO Lin, TIAN Xiao-xiao, LI Fa-chao, ZHANG Zhi-ming(School of Materials Science and Engineering, North China University of Science and Technology, Hebei Key Laboratory of Inorganic Nonmetallic Materials, Tangshan Key Laboratory of Functional Polymer Materials, Tangshan 063210, China)
出处
《塑料工业》
CAS
CSCD
北大核心
2018年第9期88-92,共5页
China Plastics Industry
基金
国家自然科学基金项目(51172062
51472074)
河北省自然科学基金项目(E2016209202)
河北省"百人计划"项目(E2012100005)
河北省高等学校科学研究计划项目(ZD2018053)
华北理工大学国家自然科学基金培育项目(GP201517)
华北理工大学大学生创新创业训练计划项目(X2016168)
关键词
废环氧模塑料粉末
聚丙烯
复合材料
表面改性
Waste Epoxy Molding Compound
Polypropylene
Composites
Surface Modification
