Material is mixed with wood of deal, beech, Fu close amine colophony, get together the natural material such as fat answer plywood.
2
通过控制这些因素提高了密胺树脂高效减水剂的羟甲基化率和磺化率,改善了产物性能。
By controlling those parameters, the hydroxymethylated and sulfonated ratios of melamine resin superplasticizer were enhanced, the performances of product also improved.
3
以正交试验为基础优化了传统密胺树脂高效减水剂的合成工艺参数,找出了显著影响因素。
The parameters of synthesizing technology of traditional melamine resin Superplasticizer were optimized, and the distinct parameters were ascertained through the perpendicular experiments.