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Citation: Zhang Huixuan, Yang Haidong, Dai Ying, Feng Zhiliu. Impact Modification of PVC with PBA/PMMA Core/Shell Composite Particles[J]. Chinese Journal of Applied Chemistry, ;1997, 14(3): 16-18. shu

Impact Modification of PVC with PBA/PMMA Core/Shell Composite Particles

1.
1. Department of Chemical Engineering, Jilin Institute of Technology, Changchun 130012;
2.
2. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130012

Received Date: 28 August 1996
Available Online: 6 January 1997
Fund Project:

Polyvinyl chloride(PVC) were toughened with polybutyl acrylate/polymethyl methacrylate core/shell impact modifier. The relationship between impact modifier's structure and its toughening efficiency to PVC was studied. Experimental results indicate that the toughening efficiency increases with particle size of the modifier. The optimum structure for the modifier is core/shell ratio 72/28~82/18, particle size 0.22 μm, fraction of crosslinking and grafting agent 0.5%~1.0%, respectively. SEM and TEM study on the morphology of the modified PVC shows that the impact modifier is uniformly dispersed in the PVC matrix.
- core/shell latex particle,
- PVC,
- polyacrylate,
- toughening
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