南京理工大学学报（自然科学版）2012，Vol.36Issue(5)：904-908,5.
茂金属聚乙烯增韧改性高流动性聚丙烯研究
Properties of High-fluid Polypropylene Modified with Metallocene Polyethylene
贾红兵 1蒋琪 1王经逸 1房尔园 1蒋静1
作者信息
- 1. 南京理工大学化工学院,江苏南京210094
- 折叠
摘要
Abstract
To improve the properties of the high-fluid polypropylene ( HF-PP) , it is modified with metallocene ethylene-hexene copolymer(mEHC). The mEHC/HF-PP composites are prepared through mechanical blending and characterized by the molten index tester,the differential scanning calorimeter ( DSC ) and the scanning electron microscope (SEM). The results show that PP matrix has good handful processability. DSC analysis indicates that the mEHC has no influence on the crystal structure of the PP matrix, but increases crystallization temperature of the PE component in the copolymer. mEHC has partial miscibility with the HF-PP molecule. The impact strength and break elongation of HF-PP are improved significantly. When mEHC mass content is 30% , the impact strength at room temperature increases to 17.81 kj/m2. SEM micrographs show that the sea-island structure can be observed when mEHC elastomer particles are uniform on the PP continous phase surface.关键词
高流动性聚丙烯/茂金属聚乙烯/熔融结晶温度/机械性能Key words
high fluid polyropylene/ metallocene polyethylene/ melting and crystallization temperature/ mechanical property分类
化学化工引用本文复制引用
贾红兵,蒋琪,王经逸,房尔园,蒋静..茂金属聚乙烯增韧改性高流动性聚丙烯研究[J].南京理工大学学报（自然科学版）,2012,36(5):904-908,5.
