Rigidity of Proper Self-Mapping on Some Kinds of Generalized Hartogs Triangle;
某些类型广义Hartogs三角型的逆紧自映射的刚性
The properties of high stiffness polypropylene and methods of enhancing its stiffness within reactor were reviewed.
综述了高刚性聚丙烯的性能及反应器内聚丙烯增刚的主要方法,主要从聚合工艺进展、催化剂体系选择、催化剂改性(催化剂预聚改性成核法和聚合改性)和反应器内添加成核剂等方面介绍了反应器内高刚性聚丙烯最新研究进展及其发展前景。