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Synthesis And Properties Of Modified Acrylic Resin

Posted on:2009-05-28Degree:MasterType:Thesis
Country:ChinaCandidate:G Y HouFull Text:PDF
GTID:2121360245974771Subject:Materials Processing Engineering
Abstract/Summary:PDF Full Text Request
Acrylic resin is a group of related thermoplastic or thermosetting plastic substances derived from acrylic acid, methacrylic acid or other related vinyl compounds. Acrylic resin has some advantages, such as good glossiness, weather-resistant, chemical resistance and stabilization; Waterborne acrylic resin is provided with non-contamination, nontoxicity, non-skin irritation, and low price and safety of production. But it also has some disadvantages, such as high film forming temperature, low hardness,poor anti-after tack, poor water-resistant, low adhesion, etc. So the high performance acrylate polymer resin which can overcome those disadvantages will become research hotspot at present.In this paper, the waterborne acyrlic resin could be prepared by solution polymerization with acrylate monomers, and make preliminary discussion on synthesis techniques, and then, in order to improve the performance and enhance synthetic properties of copolymer, glycidyl acrylate ester of tertary carboxylic acid (E-6) and polyether acrylate ester (T550) which has high adhesion and low viscosity could be used for modifying it.On the synthesis of anion acrylic resin,many factors such as different initiator, reaction temperature,hydroxy and acid number on the polymerization process and product properties were discussed. The results showed that the anion acrylic resin could be favorably prepared and the conversion rate of monomers is greater than 98% when the reaction temperature is 130℃, the hydroxy number is 90 mgKOH/g and the acid number is 60 mgKOH/g. Meanwhile, the hardness of film is 3H and the adhesion strength is level 2.Besides, uniform Newton single-phase epoxy-organic silicone-acrylic resin was obtained by the copolymerization of acrylate copolymer which was carried out in ethanol using azobisisobutyronitrile(AIBN) as initiator, through radical polymerization of acryloyl silicone and acrylate monomer, and ring-opening reactions of epoxy828 and carboxyl . The stability, hardness, resistance to water and adhesion properties of the resin film was studied. The resin had good heat storage stability and pigment wettability. Epoxy-organic silicone-acrylic resin had a high glossiness, hardness and fullness, strong glass adhesion, good tolerance boiled and transparency.
Keywords/Search Tags:Acrylic resin, Solution polymerization, Waterborne, electrophoresis, modified, Mechanical properties
PDF Full Text Request
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