【摘要】 为了满足聚乙烯醇的成膜性能和剥离性能,实验考察了加入不同含量的二氧化硅对体系的成膜性和干燥后膜力学性能的影响。实验证明:SiO2可提高溶液的抗流挂性,改善其施工性能及其干燥后膜的力学性能。综合考虑SiO2对聚乙烯醇成膜性、抗流挂性及膜的力学性能的影响,推荐浓度为10%~16%聚乙烯醇溶液中SiO2的含量为5%时较为适宜。更多还原

【Abstract】 In order to satisfy capability of polyvinyl alcohol film,the experiment researches the influence of SiO2to capability of polyvinyl alcohol film.The experiment proves that,SiO2can improve the sag resistance,and meliorate work capability,and improve mechanical capability of its film.In view of this,we commend adding 5%SiO2to10%-16% polyvinyl alcohol.更多还原