丙烯酸树脂对PVDF面漆性能的影响

摘要

研究了丙烯酸树脂对聚偏二氟乙烯（PVDF）面漆性能的影响。实验表明：丙烯酸树脂的组成结构对PVDF树脂的混溶性有影响。丙烯酸树脂结构中氢键给体的含量越多，丙烯酸树脂与PVDF树脂分散体的混溶性越差，聚甲基丙烯酸甲酯树脂与PVDF树脂的混溶性最好。外加强氢键给体也会破坏PVDF树脂与丙烯酸树脂形成的氢键，使体系的黏度和触变性急剧增加。%The influences of acrylic resin on polyvinylidene difluoride （ PVDF ）top coat were studied. Experiments showed that the compatibility impact of PVDF resin depend on the composition of acrylic resin . With increasing of the content of hydrogen bond donors in the acrylic resin structure, the compatibility of acrylic resin and PVDF dispersion was decreased. PMMA resin has the best compatibility. While adding other strong hydrogen bond donors, the hydrogen bonds between PVDF resin and acrylic resin will be destroyed, so that the viscosity and thixotropy of the system were increased dramatically.