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Citation: WANG Ya-Qiang, LI Yu-Ping, aZHANG Run-Yang, CHEN Zhi-Qiao, YAN Bing-Yue. Thermal Degradation of Nano-SiO₂/acrylic Resin Composite Film[J]. Chinese Journal of Applied Chemistry, ;2006, 23(12): 1327-1331. shu

Thermal Degradation of Nano-SiO₂/acrylic Resin Composite Film

1.
Materials Science and Engineering College, Hunan University, Changsha 410082

Corresponding author: LI Yu-Ping,
Received Date: 23 December 2005
Available Online: 5 May 2006
Fund Project: 国家自然科学基金(50573019)资助项目 (50573019)

Nano-SiO₂/acrylic resin composite latex was synthesized in the presence of nano-SiO₂,which was modified by silane coupling agent.The FT-IR analysis showed that the spectrum of the composite latex had all the characteristic bands of nano-silica and pure polyacrylate latex.The thermal analysis showed that the addition of nano-SiO₂ raised the rigidity of acrylic molecules,generated cross linkage and induced the free radical from the thermal degradation,which improved the thermal stability of the composite latex.The thermal degradation activation energy of 3% ω(SiO₂) is 298.40 kJ/mol,which quantitatively explains the improvement of the thermal stability after the addition of nano-SiO₂.
- nano-SiO₂,
- acrylic resin,
- composite film,
- thermal degradation
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Thermal Degradation of Nano-SiO₂/acrylic Resin Composite Film