硫酸盐晶须改性ABS复合材料的性能与微观结构

Property and microstructure of Abs composite modified with salt sulfate whisker

以硫酸钙晶须、硫酸镁晶须为增强改性剂,高胶粉为增韧改性剂,ABS为主体材料,通过采用熔融混合挤出制得改性ABS复合材料。对该复合材料的力学性能、热性能进行测试,观察了硫酸钙晶须和硫酸镁晶须用量对ABS复合材料的力学性能、热性能的影响,并讨论了相关的增韧增强机理。观察了硫酸钙晶须、硫酸镁晶须/ABS复合材料的微观结构。实验结果表明,在改性ABS材料时,硫酸镁晶须与硫酸钙晶须相比,具有更好的综合力学性能。

Calcium sulfate whisker and magnesium sulfate whisker as reinforcer, SBS as toughener, ABS as resin matrix were used for manufacturing modified ABS composite by melt mixing and extrusion. The mechanical and thermal properties of the composites were tested, and the influences of calcium sulfate whisker and magnesium sulfate whisker usage on mechanical and thermal properties of the composites were observed. The toughening mechanism of the modified ABS composites was discussed, and the microstructure of the composite was observed. The test results showed that magnesium sulfate whisker had better comprehensive mechanical properties as compared with calcium sulfate whisker, when ABS was modified.