A kind of complex profile control agent comprising bicomponent polymer was formed from polymer mixture comprising polyacrylamide and polyvinyl alcohol using formaldehyde and borax as the crosslinkers.
By using property of separating out water at high temperature for polyvinyl alcohol formaldehyde solution, kaolin and light calcium carbonate can be directly added, and technique is simplified.
在制备方法上利用聚乙烯醇缩甲醛溶液高温析水的性质，直接加入高岭土、轻质碳酸钙制胶，简化了工艺。
3
This paper introduced a preparation of modified polyvinyl formal adhesive. The adhesive has advantage of low free formaldehyde content, good viscosity stability and low temperature storage stability.