1·By controlling those parameters, the hydroxymethylated and sulfonated ratios of melamine resin superplasticizer were enhanced, the performances of product also improved.
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。
2·Polycarboxylate superplasticizer with carboxylic, sulfonation groups in its main chain and polyoxyethylene ether as side chains was prepared by the macromolecular reaction.
通过大分子反应，合成了一类主链带羧基、磺酸基，支链带聚氧乙烯基醚的聚羧酸系高效减水剂。
3·Based on molecular design theory of polymer, a kind of low slump loss polycarboxylate type superplasticizer was synthesized.
应用高分子设计原理，合成了一种低坍损聚羧酸系高效减水剂。
4·Based on molecular design theory of polymer, a kind of low slump loss comb-like polycarboxylate type superplasticizer was synthesized.
应用高分子设计原理，合成了一种低坍损梳形聚羧酸系高效减水剂。
5·Its conclusions are favourable to the synthesis of a new copolymer superplasticizer.
该工作结论有利于合成一类新型共聚物类高效减水剂。