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Citation: ZHU Zhi-Bo, ZHANG Li. Effects of Epoxysiloxane on the Property of Acrylate Soap-free Coating[J]. Chinese Journal of Applied Chemistry, ;2003, 20(6): 574-577. shu

Effects of Epoxysiloxane on the Property of Acrylate Soap-free Coating

ZHU Zhi-Bo ,
ZHANG Li ^,

1.
Department of Chemistry, South China Normal University, Guangzhou 510631

Corresponding author: ZHANG Li,
Received Date: 9 September 2002
Available Online: 26 February 2003
Fund Project: 广东省科委攻关项目(2KM06202S) (2KM06202S)广州市科委技术攻关项目(2000Z08601)资助 (2000Z08601)

The acrylic ester emulsifier-free emulsion was synthesized from methyl methacrylate、n-butyl acrylate and methacrylic acid and the effects of epoxysiloxane on the glossiness,water absorption and pencil hardness of the polymer and on the Ca²⁺ stability of the emulsion were studied.It was found that the glossiness of the polymer was reduced from 89.8% to 70.9%,Ca²⁺ stability from 9.7 mL to 2.7 mL,pencil hardness from 2B to 3H and the water absorption from 24.9% to 0.2% with the increase of epoxy siloxane,respectively.The optimum molar ratio of epoxysiloxane to MAA was found to be 1.The granding analysis demonstrated the cross-linking reaction between epoxy siloxane and methyl acrylic acid.A crosslinking mechanism is proposed.
- epoxysiloxane,
- acrylate,
- soap-free emulsion coating,
- property
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