摘要
使用尿素和三聚氰胺对PVA缩甲醛胶进行改性,可大大降低缩醛胶中游离醛的含量,提高成膜物的耐水性,降低成本。
To modify polyvinyl Formal gel with urea and melamine can greatly reduce free formal content in the gel,improve water resistance of film forming substance and lower the cost.
出处
《化学建材》
1996年第1期19-21,共3页
Chemical Materials for Construction
关键词
尿素
PVA缩甲醛胶
游离醛
耐水性
urea melamine
polyvinyl formal gel
free formal
water resistance.