Preparation and Characterization of Vinyl Siloxane Modified Acrylic Resin Water Dispersion
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Anhui Provincial Science and Technology Plan 2017 Key Project (1704a0902018);Anhui Provincial College of Natural Science Research Key Project ( KJ2016A792);Anhui Province Natural Science Foundation of China(1040606M59)

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    Abstract:

    Using acrylic acid (AA), butyl acrylate (BA), hydroxyl ethyl acrylate (HEA), isobornyl methacrylate (IBOMA) and methyl methacrylate (MMA) as the main raw material, 1, 3 - divinyl tetramethyl two siloxane(DVMS)as the modifier, isopropyl alcohol(IPA) as the solvent, azodiisobutyronitrile (AIBN) as the initiator to prepare the acrylic resin pre-polymers. Using triethylamine as the neutralizer. Then add water to make a series of acrylic resin. At last, the resin film was prepared. The viscosity of the acrylate water dispersions were tested by viscometer. The characterization of the cured resin films were analyzed by FTIR,TGA,XPS,SEM,TEM and so on. In addition, the storage stability, the water absorption of the dispersoid and the gloss were also tested. The results show that when the amount of DVMS was 6wt%, the performance of the resin film was improved greatly and the storage stability of the resin was the best. At the same time, the tensile strength of the coating reached 14.3 MPa. The elongation at break was 324%. When the thermal decomposition weightlessness was 5% and the decomposition temperature was 283 ℃. When the coating temperature was 25 ℃-35 ℃, the coating compactness of resin film increased and had high gloss and good adhesion. The adhesion was 1 degree. The hardness was 2H.

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History
  • Received:March 04,2019
  • Revised:April 29,2019
  • Adopted:April 30,2019
  • Online: July 31,2019
  • Published:
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