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以甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)为主单体,各种形态纳米SiO2(硅溶胶和纳米SiO2粉体)为无机改性剂,通过共聚及共混方式制备了纳米SiO2-丙烯酸酯复合乳液。从乳液和乳胶膜性能方面对各种改性方式进行了比较,并探讨了以该复合乳液为面胶的浸渍胶膜纸饰面人造板的热压工艺。此外,还从产品的耐磨性及耐油污方面进一步对各种改性方式进行了评价。研究结果表明:经硅烷偶联剂KH-570修饰的硅溶胶与丙烯酸酯单体形成了共聚产物,各种改性方式得到的复合乳液的粒径与纯丙乳液相比均有所增加,粒径分布也有变宽;含8%SiO2的硅溶胶丙烯酸酯共聚复合乳液力学性能较佳,以其为面胶制得的浸渍纸饰面人造板的耐磨性和耐油污测试表现较佳。
Abstract:Nano SiO2-acrylate composite emulsion was prepared by copolymerization and blending with methyl methacrylate(MMA),butyl acrylate(BA)as main monomers,various forms of nano SiO2(silica sol and nano SiO2 powder)as the inorganic modifiers. The various modification methods were compared from the aspects of emulsion and latex film performance,and the hot pressing process of surface decorated wood-based panel with impregnated paper using the above composite emulsion as adhesive was also discussed. In addition,the wearability and oil stain resistance of the products were further evaluated. The research results showed that the silica sol modified by silane coupling agent KH-570 was successfully copolymerized with acrylate monomer,the particle size of the composite emulsion obtained by various modification methods increased compared with that of pure acrylic emulsion,and the particle size distribution also became wider. The silica sol-acrylate copolymer composite emulsion containing 8% SiO2 had excellent mechanical properties,and the wearability and oil stain resistance of the surface decorated wood-based panel with impregnated paper using it as adhesive performed better.
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基本信息:
DOI:10.13416/j.ca.2020.03.003
中图分类号:TQ316.334;TS653
引用信息:
[1]张祖新,付高位,王春鹏等.纳米SiO_2-丙烯酸酯复合乳液的制备及其在饰面人造板中的应用研究[J].中国胶粘剂,2020,29(03):5-10.DOI:10.13416/j.ca.2020.03.003.
基金信息:
中央级公益性科研院所基本科研业务费专项资金(CAFYBB2018ZB008)