玻纤布增强核壳颗粒SiO2@(1,2-PB/EPDM)填充聚烯烃复合材料性能的研究

张伟, 冯春明, 李强, 王浩栋

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塑料科技 ›› 2024, Vol. 52 ›› Issue (06) : 46-50. DOI: 10.15925/j.cnki.issn1005-3360.2024.06.009
理论与研究

玻纤布增强核壳颗粒SiO2@(1,2-PB/EPDM)填充聚烯烃复合材料性能的研究

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Study on Properties of Glass Fiber Cloth Reinforced Core-Shell Particles SiO2@(1,2-PB/EPDM) Filled Polyolefin Composites

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摘要

文章探究了核壳颗粒SiO2@(1,2-PB/EPDM)填充,对聚烯烃复合材料性能的影响。采用酸性活化、硅烷偶联剂KH-570改性和沉淀聚合制备核壳颗粒SiO2@(1,2-PB/EPDM)。将核壳颗粒加入聚烯烃树脂中,搅拌分散均匀。将玻纤布浸入复合胶液,经烘干叠层热压后,制备玻纤布增强核壳颗粒SiO2@(1,2-PB/EPDM)填充的聚烯烃复合材料,研究不同壳层厚度对复合材料力学性能、介电性能和吸水率的影响。结果表明:随着核壳颗粒聚合物壳层厚度的增加,复合材料的抗弯强度和抗弯模量随之增大,介电常数、损耗因子和吸水率随之降低。当聚合物壳层厚度为60 nm时,聚烯烃复合材料的介电常数为3.44,损耗因子为3.46×10-3,吸水率为0.064%,抗弯强度为178.7 MPa,抗弯模量为16.57 GPa,可满足微波基板材料的使用要求。

Abstract

The effect of core-shell SiO2@(1,2-PB/EPDM) particles on the properties of the polyolefin composites was investigated in this paper. Core-shell particles SiO2@(1,2-PB/EPDM) were prepared by acid activation, silane coupling agent KH-570 modification and precipitation polymerization. The core shell particles were added into the polyolefin resin, stirring and dispersing evenly. The polyolefin composite filled with glass fiber cloth reinforced core-shell particles SiO2@(1,2-PB/EPDM) was prepared by dipping glass fiber cloth into composite adhesive solution and hot pressing. The effects of different shell thickness on mechanical properties, dielectric properties and water absorption of the composites were investigated. The results show that with the increase of shell thickness, the flexural strength and flexural modulus of the composites increase, and the dielectric constant, loss factor and water absorption decrease. When the thickness of the polymer shell is 60 nm, the dielectric constant of the composite is 3.44, the loss factor is 3.46×10-3, the water absorption is 0.064%, the flexural strength is 178.8 MPa, and the flexural modulus is 16.57 GPa. The comprehensive performance of the polyolefin composites can meet the requirements of microwave substrate materials.

关键词

玻纤布 / 核壳颗粒 / 聚烯烃 / 力学性能 / 介电性能

Key words

Glass fiber cloth / Core-shell particles / Polyolefin / Mechanical properties / Dielectric properties

中图分类号

TB332

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导出引用
张伟 , 冯春明 , 李强 , . 玻纤布增强核壳颗粒SiO2@(1,2-PB/EPDM)填充聚烯烃复合材料性能的研究. 塑料科技. 2024, 52(06): 46-50 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.06.009
ZHANG Wei, FENG Chun-ming, LI Qiang, et al. Study on Properties of Glass Fiber Cloth Reinforced Core-Shell Particles SiO2@(1,2-PB/EPDM) Filled Polyolefin Composites[J]. Plastics Science and Technology. 2024, 52(06): 46-50 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.06.009

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