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Citation: YU Hai-Yin, WU Zheng-Cui, GUAN Ming-Yun, LING Qing, LI Shi-Feng, SUN Yi-Min. Graft Polymerization of MMA/BMA on the Surface of SiO₂ Fine-particles and Its Application in PVC Composite Materials[J]. Chinese Journal of Applied Chemistry, ;2003, 20(10): 946-950. shu

Graft Polymerization of MMA/BMA on the Surface of SiO₂ Fine-particles and Its Application in PVC Composite Materials

1.
College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000

Corresponding author: YU Hai-Yin,
Received Date: 28 December 2002
Available Online: 19 May 2003
Fund Project: 安徽省教育厅科研基金资助项目(2001KJ096) (2001KJ096)安徽师范大学科研专项基金资助项目(2000ZX10) (2000ZX10)安徽省自然科学基金重大科研项目(01022007) (01022007)

A kind of water-soluble hydroxyl propyl methyl cellulose(HPMC) has been encapsulated on the fine SiO₂ particles, and some factors, such as pH value of the medium, encapsulation time and temperature were examined. The results showed that at~60℃ the highest amount of HPMC could be encapsulated on the SiO₂ surface, and it increased with increase of time and decrease of pH value. The graft copolymerization of methylmethacrylate(MMA) and butylmethacrylate(BMA) has been carried out on the surface of SiO₂/HPMC particles successfully. Encapsulated SiO₂ particles being dispersed in PVC have higher impact strength and tensile strength than that of control SiO₂ sample in 42.3% and 41%, respectively.
- hydoxyl propyl methyl cellulose,
- encapsulation,
- inorganic-organic compound particle,
- ω-graft polymerization,
- polyvinyl chloride,
- composite materials
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Graft Polymerization of MMA/BMA on the Surface of SiO₂ Fine-particles and Its Application in PVC Composite Materials