聚碳酸酯回收料的增韧改性  

Toughening Modification of Recycled Polycarbonate

作　　者：杨敦[1] 杨霖[1] 徐巍[1] 王拴紧[1] 肖敏[1] 孟跃中[1] 

机构地区：[1]广东省低碳化学与过程节能重点实验室,中山大学,广州510275

出　　处：《工程塑料应用》2014年第9期22-24,共3页Engineering Plastics Application

摘　　要：研究了市售的两种增韧剂对聚碳酸酯(PC)回收料力学性能的影响。结果表明,两种增韧剂均能大幅提高PC回收料的缺口冲击强度和断裂伸长率,当两种增韧剂的质量分数均为6%时,PC回收料的冲击强度由21 kJ/m2均提高至60 kJ/m2左右,断裂伸长率也从15%提高至100%以上,增韧效果明显,但拉伸强度有所下降。同时,考察了两种增韧剂对PC回收料低温韧性的影响,动态力学性能研究表明,牌号为B–31的增韧剂能明显改善PC回收料的低温韧性。The effects of two commercially available tougheners on the mechanical properties of recycled polycarbonate（r-PC）were studied. The results show that both of the agents can enhance the impact strength and the elongation at break of r-PC effectively,but reduces its tensile strength. When the mass fraction of the two tougheners is 6%respectively,the impact strengths of the r-PC blends are increased both from 21 kJ/m2 to 60 kJ/m2 similarly,and the elongations at break are increased from 15%to 100%above. Dynamic mechanical analysis results show that the B-31 toughener can significantly improve the toughness of r-PC at low temperature effectively.

关 键 词：聚碳酸酯 回收料 增韧 低温韧性 

分 类 号：TQ316.6[化学工程—高聚物工业]