增韧SMA的制备及与PC的共混改性

Preparation of Toughened SMA and Blending Modification of PC with Toughened SMA

研究了ＳＢＳ增韧ＳＭＡ树脂体系，采用二次共混工艺，用１５％（质量）的ＳＢＳ可以很好地增韧ＳＭＡ树脂；用增韧的ＳＭＡ树脂与ＰＣ进行共混，考察了体系的力学性能和微观相结构，制备出综合力学性能良好、加工性能优于纯ＰＣ的共混材料。当增韧ＳＭＡ／ＰＣ为２０／８０时，共混材料的力学性能与纯ＰＣ相近，达到了预期改性ＰＣ的目的。

 Toughening of SMA resin by means of two stage blending,with an addition of 15% of SBS (by mass),was studiedToughened SMA was blended with PC,and the mechanical properties and microstructure of the blend system were investigated,a SMA/PC blend was preparedThe overall property of the system was superior,and the processability was better than that of PCWhen the blending ratio of SMA/PC was 20∶80,the mechanical properties of the system was similar to that of PC,and desired modification of PC was achieved