摘要
通过熔融共混法将自制的低黏度高支化聚苯乙烯(HBPS)添加到高黏度的聚碳酸酯(PC)中共混改性,研究了PC/HBPS共混物的动态流变性能。结果表明:共混物的复数模量都比纯PC低,损耗角都比纯PC大;随着温度的升高,共混物的复数模量下降,损耗角增加;共混物的复数黏度都比纯PC低,随着频率的增加,复数黏度的降低程度变小。
Polycarbonate （PC） of high viscosity was modifi ed by sefl -made highly branched polystyrene （HBPS） of low viscosity by means of melting blending, and the dynamic rheological property of PC/HBPS blend was investigated. The results show that： the complex modulus of the blends is lower than that of pure PC, and the loss angle of them is higher than that of pure PC; with the increase of the temperature, the complex modulus of the blends decreases, and the loss angle of them increase; the complex viscosity of the blends is lower than that of pure PC, with the increase of frequency, the decrease of the complex viscosity becomes slow.
出处
《塑料科技》
CAS
北大核心
2008年第5期44-47,共4页
Plastics Science and Technology
基金
江苏省高校自然科学基础研究项目资助(07KDJ430003)
关键词
聚碳酸酯
高支化聚苯乙烯
共混物
动态流变性能
Polycarbonate
Highly branched polystyrene
Blend
Dynamic rheological property
