辐照接枝设计高韧性PS基三元复合材料的制备及表面性能研究  

Preparation and Surface Properties of Irradiation Grafted PS Based Ternary Composites with High Toughness

作　　者：韩智颖[1] HAN Zhi-ying(Inner Mongolia Transportation Vocational and Technical College,Chifeng 024005,China)

机构地区：[1]内蒙古交通职业技术学院,内蒙古赤峰024005

出　　处：《塑料科技》2021年第4期53-57,共5页Plastics Science and Technology

摘　　要：以高韧性为设计应用导向,利用分次加入的方法制备了聚苯乙烯/苯乙烯-乙烯-丁烯-苯乙烯嵌段共聚物/云母三元复合材料(PS/SEBS/云母),并对复合材料进行辐照处理,设计了复合材料配方、探究了辐照时间与复合材料物理性能、耐热性能和表面性能的关系。研究发现:随着辐照时间的增加,复合材料拉伸强度、弯曲强度明显提高,弯曲模量变化不大,冲击强度在辐照时间为2 min时最高,热变形温度和耐热性能逐渐下降。当复合材料配比为PS∶SEBS∶云母=100∶20∶2、辐照时间为2 min时,能够获得高光泽、高韧性和耐刮擦的复合材料,其冲击强度达到14.3 kJ/m^(2)、光泽度达到84°、铅笔硬度等级达到H级,复合材料在家用电器、家具外壳件领域有较大应用潜力。Polystyrene/styrene ethylene butene styrene block copolymer/mica ternary composites(PS/SEBS/mica)were prepared by fractional addition method with high toughness as the design and application orientation.The composites were irradiated.The composites formula was designed,and the relationship between irradiation time and physical properties,heat resistance and surface properties of the composites was explored.The results show that with the increase of irradiation time,the tensile strength and bending strength of the composites increase obviously,while the bending modulus does not change much;the impact strength reaches the maximum at irradiation time 2 min,and the thermal deformation temperature and heat resistance gradually decrease;when the ratio of PS:SEBS:mica is 100∶20∶2 and the irradiation time is 2 min,the composites can obtain high gloss,high toughness and scratch resistance.The impact strength of the composites is 14.3 kJ/m^(2),the gloss is 84° and the pencil hardness is H.The composites has great application potential in the field of household appliances and furniture shell.

关 键 词：聚苯乙烯 苯乙烯-乙烯-丁烯-苯乙烯嵌段共聚物 云母 高光泽 结构设计 

分 类 号：TB332[一般工业技术—材料科学与工程]