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Citation: YAN Li-Mei, LIU Xiao-Hui, WANG Zhi-Lu. Mechanism of Freezing-thawing Stability of Polyvinyl Acetate Emulsion[J]. Chinese Journal of Applied Chemistry, ;2001, 18(2): 120-124. shu

Mechanism of Freezing-thawing Stability of Polyvinyl Acetate Emulsion

1.
Heilongjiang Provincial Petrochemisry Research Institute, Harbin 150040

Received Date: 8 May 2000
Available Online: 14 November 2000

The properties of polyvinyl alcohol and formalized polyvinyl alcohol aqueous solution were studied and their behavior as a protective colloid for polyvinyl acetate emulsion, especially in freezing-thawing conditions were compared, including the function of graft degree of vinyl acetate on them. The results showed that polyvinyl formal was much preferable of polyvinyl alcohol in this respect. The mechanism of the modification was discussed.
- polyvinyl acetate emulsion,
- freezing-thawing stability,
- polyvinyl formal,
- protective colloid
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