Production theory and processes of modified urea-formaldehyde resin used in oil well water shutoff and some influence on product performance resulted by main factor in the production are introduced.
介绍了适用于油田油井堵水用的改性脲醛树脂的生产原理和工艺,以及生产中的关键因素对产品性能的影响。
A transparent dilatant fireproof coating was prepared, based on a modified urea-formaldehyde resin as binder, and phosphoric acid and starch as fire retardant.
以改性脲醛树脂为基料,磷酸和淀粉为阻燃剂制得膨胀型透明防火涂料。
Those factors occurred in the synthetical technics of modified urea-formaldehyde resin with starchy oxide.
结果表明:脲醛比、淀粉种类和氧化程度是影响游离甲醛含量和固含量的主要因素;