Abstract: Polyacrylate is a kind of macromolecule polymer synthesized from acrylate or methacrylate. It has good mechanical properties, weather resis-tance, acid and alkali resistance, its preparation process is simple and low in cost. It is widely used as a film-forming material for leather finishing, building coatings and wood. However, the application of pure polyacrylate is limited because of its poor antibacterial properties, mechanical properties and thermal stability. The functional behavior of polyacrylate can be improved by chemical modification and structural design. The epoxy-acrylate obtained by using epoxy resin modified acrylate has the advantages of both, and has good weather resistance and thermal stability. At present, there are three methods of epoxy resin modifying acrylate: physical blending, esterification modification and graft copolymerization. Polyurethane is generally composed by isocyanate and active hydrogen compound, which can be divided into polyester polyurethane and polyether polyurethane. Polyurethane-acrylate composite emulsion curing film has excellent high temperature resistance, mechanical properties, and has been widely used in ink, coatings, adhesives and other fields. The methods of polyurethane modification include physical blending, composite copolymerization, core-shell copolymerization and interpenetrating polymer network. Fluoropolymer materials have many excellent properties, such as extremely low surface energy and excellent stability. The fluorine-containing groups are introduced into the acrylate emulsion. During the curing process, the fluorine-containing groups will accumulate on the surface of the membrane, protect the internal structure, and obtain the acrylate resin with excellent performance. Silicone is a kind of inorganic organic polymer, which can be used to connect inorganic matter with organic matter. There are mainly several different methods of silicone modified acrylate: polycondensation, free radical polymerization, hydrosilo-xane addition, interpenetrating network method, etc. The development of nanomaterials has also played a positive role in the modification of polyacrylate. Nanomaterials modified polyacrylates can not only make up for the deficiency of the emulsion itself, but also add the excellent cha-racteristics of nanoparticles. At present, the common nanoparticles mainly include ZnO, Fe3O4, Al2O3, TiO2 and so on. This paper introduces the research progress of polyacrylate modified by epoxy resin, polyurethane, organic fluorine, silicone and nanoparticles. In this paper, the structural characteristics, modification methods and modification properties of these modified materials in recent years are reviewed, and their development direction is analyzed and prospected.
马长坡, 刘兴琛, 李永赞, 张健, 亢敏霞, 邱祖民. 聚丙烯酸酯材料改性技术概况[J]. 材料导报, 2021, 35(15): 15212-15219.
MA Changpo, LIU Xingchen, LI Yongzan, ZHANG Jian, KANG Minxia, QIU Zumin. Research Progress in Modification of Polyacrylate. Materials Reports, 2021, 35(15): 15212-15219.
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