非共价改性法制备聚苯乙烯/高分散石墨烯复合材料

doi:10.19491/j.issn.1001-9278.2018.12.007

中国塑料 ›› 2018, Vol. 32 ›› Issue (12): 41-48.DOI: 10.19491/j.issn.1001-9278.2018.12.007

非共价改性法制备聚苯乙烯/高分散石墨烯复合材料

黄健¹，赵子琪¹，陈跳²，黄昊¹，马保国¹

1.武汉理工大学硅酸盐建筑材料国家重点实验室 2.湖北省建筑科学研究设计院

收稿日期:2018-06-11 修回日期:2018-07-15 出版日期:2018-12-26 发布日期:2019-01-25
基金资助:
十三五国家重点研发专项（2016YFC0700905-04）；国家自然科学基金（51303146）

Preparation of Polystyrene/Highly Dispersed Graphene Composites by Non-covalent Modification

Received:2018-06-11 Revised:2018-07-15 Online:2018-12-26 Published:2019-01-25

摘要/Abstract

摘要： 以工业化石墨烯粉体(IGN)与苯乙烯为原料，聚乙烯醇、磷酸三钙为分散剂，过氧化苯甲酰为引发剂，聚苯乙烯(PS)树脂作为非共价改性组分，通过超声分散、悬浮聚合法制备了聚苯乙烯/高分散石墨烯复合材料,探究了超声分散时间与PS含量对IGN在复合材料中的分散性影响机理。结果表明，PS可提高IGN在苯乙烯(St)单体中的相容性；超声时间30 min，PS添加量为St单体质量的3 %时，复合材料微观形貌较好，IGN分散性较佳；随着PS/IGN中IGN含量的增加，复合材料的外延起始降解温度逐渐提高40 ℃，玻璃化转变温度最大提升7.3 ℃，拉伸强度由43.5 MPa增强至68.3 MPa，提升近65 %。

Abstract: The highlydispersed polystyrene/graphene composites were prepared by ultrasonic dispersion and suspension polymerization using styrene and industrial graphene (IGN) as raw materials, polyvinyl alcohol and tricalcium phosphate as dispersing agents, benzoyl peroxide as an initiator and polystyrene resin (PS) as a non-covalent modifier. The effects of ultrasonic dispersion time and PS content on the dispersion of IGN in the matrix were investigated. The experimental results indicated that the addition of PS could effectively improve the compatibility of IGN with styrene monomer. IGN achieved an optimum dispersion in the matrix when ultrasonic time was set as 30 min and PS content was set to 3 % in the monomer. With an increase of weight ratioof IGN/PS, the initial degrading temperature of the composites increased by 40 ℃, the glass transition temperature increase by 7.3 ℃maximally, and tensile strength increased by approximately 65 % from 43.5 MPa to 68.3 MPa.

黄健赵子琪陈跳黄昊马保国. 非共价改性法制备聚苯乙烯/高分散石墨烯复合材料[J]. 中国塑料, 2018, 32(12): 41-48.

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非共价改性法制备聚苯乙烯/高分散石墨烯复合材料

Preparation of Polystyrene/Highly Dispersed Graphene Composites by Non-covalent Modification

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