Effects of rosin-type nucleating agent on polypropylene crystallization
β Scribed by Chun-Cheng Li; Guang Zhu; Zhen-Yi Li
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 179 KB
- Volume
- 83
- Category
- Article
- ISSN
- 0021-8995
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## Abstract A new kind of rosinβtype nucleating agent for polypropylene (PP), the cocrystal of dehydroabietic acid, potassium dehydroabietate, and sodium dehydroabietate, was prepared, and the effects of the nucleating agents on the mechanical and crystallization properties of PP were also studied.
The isothermal and nonisothermal crystallization kinetics of nonnucleated and nucleated isotactic polypropylene ( iPP ) were investigated by DSC and a polarized light microscope with a hot stage. Dibenzylidene sorbitol ( DBS ) was used as a nucleating agent. It was found that the crystallization rat