Research On The Preparation Of PVB Resin By Novel Soap-free Polymerization Technology And Its Application

PVB resin is a necessary material for the preparation of laminated safety glass.with t he rapid development of automobile industry and construction industry,the use of laminate d safety glass has increased rapidly,which has stimulated the research progress of PVB res in.because of the easy caking in the process of synthetic PVB,the quality and properties of PVB resin are seriously affected.For solving this problem,various manufacturers add vari ous emulsifiers or dispersants in the process of synthesis to achieve the purpose of dispersi on,but the introduction of emulsifiers increases the process of removing emulsifiers,increa ses the difficulty and cost of production,and emulsifiers need a large amount of water clea ning,after washing wastewater treatment difficulties,pollution of the environment,and the residue of emulsifiers seriously affect the quality of PVB resin.By studying the synthesis mechanism of PVB resin,a novel soap-free polymerization technology was invented in this paper.without adding emulsifier,the uniform dispersion of PVB resin was realized by adding mechanical microspheres to the synthesis system,under the action of high speed stirring and collision of microspheres,and the problem of product agglomeration was solved,and the quality of PVB resin was guaranteed at the same time.herein,we explore in detail the technological conditions and the preparation process of em ulsion-free PVB resin synthesis,and explore the mechanism of mechanical impact soap-fre e polymerization,and successfully realize the controllable environmental protection prepa ration of resin.the preparation process is simple,environmentally friendly and non-toxic,a nd the process conditions are suitable for polymerization methods of various resins.Moreover,we made PVB resin film,explored the technological conditions of film for mation,tested the mechanical properties of of the PVB film,made the laminated safety gla ss,studied the fabrication process of the laminated safety glass,tested the sound insulatio n and impact resistance of the laminated safety glass,and compared the performance with t he current commercial PVB resin and the laminated safety glass made from the traditiona l emulsion polymerization method.The PVB resin synthesized by the new soap-free poly merization technology is similar to the PVB resin synthesized by the traditional emulsion p olymerization technology,and even superior to the PVB resin synthesized by the traditiona l emulsion polymerization technology,so the PVB resin synthesized by the new soap-fre e polymerization technology is of general value.