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Reduction type polycarboxylate superplasticizer and preparation method thereof
The invention belongs to the technical field of polycarboxylate superplasticizers, and particularly discloses a shrinkage-reducing type polycarboxylate superplasticizer and a preparation method thereof. The preparation method comprises the following steps: reacting unsaturated acid with diethylene glycol dipropylene glycol monobutyl ether and dipropylene glycol in a specific ratio to prepare a mixed functional monomer, and reacting unsaturated alcohol polyoxyethylene ether, unsaturated acid, the mixed functional monomer and other auxiliaries to prepare the shrinkage-reducing polycarboxylic acid water reducer. The shrinkage-reducing type polycarboxylic acid water reducer prepared by the invention has excellent shrinkage-reducing effect and water-reducing effect, and also has the characteristic of small addition amount, and the preparation process is simple.
本发明属于聚羧酸减水剂技术领域，具体公开了一种减缩型聚羧酸减水剂及其制备方法。本发明先将不饱和酸与特定比例的一缩二乙二醇二丙二醇单丁醚和一缩二丙二醇反应制备混合功能单体，然后以不饱和醇聚氧化乙烯醚、不饱和酸、混合功能单体和其他助剂反应制备减缩型聚羧酸减水剂。本发明制备的减缩型聚羧酸减水剂具有优异的减缩效果和减水效果，还具有添加量小的特点，且制备工艺简单。
Reduction type polycarboxylate superplasticizer and preparation method thereof
The invention belongs to the technical field of polycarboxylate superplasticizers, and particularly discloses a shrinkage-reducing type polycarboxylate superplasticizer and a preparation method thereof. The preparation method comprises the following steps: reacting unsaturated acid with diethylene glycol dipropylene glycol monobutyl ether and dipropylene glycol in a specific ratio to prepare a mixed functional monomer, and reacting unsaturated alcohol polyoxyethylene ether, unsaturated acid, the mixed functional monomer and other auxiliaries to prepare the shrinkage-reducing polycarboxylic acid water reducer. The shrinkage-reducing type polycarboxylic acid water reducer prepared by the invention has excellent shrinkage-reducing effect and water-reducing effect, and also has the characteristic of small addition amount, and the preparation process is simple.
本发明属于聚羧酸减水剂技术领域，具体公开了一种减缩型聚羧酸减水剂及其制备方法。本发明先将不饱和酸与特定比例的一缩二乙二醇二丙二醇单丁醚和一缩二丙二醇反应制备混合功能单体，然后以不饱和醇聚氧化乙烯醚、不饱和酸、混合功能单体和其他助剂反应制备减缩型聚羧酸减水剂。本发明制备的减缩型聚羧酸减水剂具有优异的减缩效果和减水效果，还具有添加量小的特点，且制备工艺简单。
Reduction type polycarboxylate superplasticizer and preparation method thereof
一种减缩型聚羧酸减水剂及其制备方法
HE TUSHENG (author) / LI ZAIBO (author) / LIU YANG (author) / TIAN CHANG'AN (author) / WANG CAO (author) / CHEN CHAO (author) / XU ZENGWEI (author)
2022-09-06
Patent
Electronic Resource
Chinese
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