引用本文:
高素莲, 张秀真. EC/CA共混物的相容性和热稳定性[J]. 应用化学,
2005, 22(8): 923-925.
Citation: GAO Su-Lian, ZHANG Xiu-Zhen. Studies on Compatibility and Thermal Stability of EC/CA Blends[J]. Chinese Journal of Applied Chemistry, 2005, 22(8): 923-925.
Citation: GAO Su-Lian, ZHANG Xiu-Zhen. Studies on Compatibility and Thermal Stability of EC/CA Blends[J]. Chinese Journal of Applied Chemistry, 2005, 22(8): 923-925.
EC/CA共混物的相容性和热稳定性
English
Studies on Compatibility and Thermal Stability of EC/CA Blends
Abstract:
Ethyl cellulose (EC)/cellulose acetate (CA) blends were prepared by solution blending.The thermal stability of the blends was observed by TG,and the compatibility of them was also studied by visco-metry,refractive index,DSC and IR.The results show that the refractive index or the trait vicidity of the EC/CA solution is linearly dependent on the mass composition of the blend.At 50 and 0.01 g/mL concentration,EC and CA are almost completely miscible.A single Tg was observed for a series of blends,which was in between the Tg of pure EC and that of pure CA.The decomposition temperature of the EC/CA blend decreased with the increase of EC mass fraction in the blends.These results indicate that there is good compatibility between EC and CA,and the thermal stability of the blends is improved compared to that of pure EC.
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Key words:
- ethyl cellulose
- / cellulose acetate
- / solution blending
- / compatibility
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