论文部分内容阅读
通过加入尿素对磺甲基酚醛树脂（ＳＭＰ）进行改进，从而获得价格低廉、抗高温性能优良，且有突出抗钙能力的新型泥浆处理剂──磺甲基酚醛脲树脂（ＳＭＰＵ）。
The sulfonated phenolic resin (SMPU) was modified by the addition of urea to obtain SMPU, a new mud treatment agent with low cost, high temperature resistance and outstanding calcium resistance.