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High slump loss resistance type polycarboxylate water-reducer and preparation method thereof
The invention discloses a high slump loss resistance type polycarboxylate water-reducer and a preparation method thereof. The preparation method comprises the following steps: mixing 120-130 parts bymass of acrylic acid, 180-200 parts by mass of unsaturated ester, a cross-linking agent and water to be uniform to prepare a solution A; uniformly mixing a chain transfer agent with water to obtain asolution B; uniformly mixing a reducing agent and water to obtain a solution C; and adding an unsaturated polyether macromonomer and water into a reactor, adding an initiator, uniformly mixing, stirring, heating to 30-40 DEG C, adding the solution A, the solution B and the solution C, continuously and naturally reacting for 25-30 minutes after addition is completed, adding water, and uniformly mixing to obtain the high slump loss resistance type polycarboxylate water-reducer. The preparation process of the high slump loss resistance type polycarboxylate water-reducer is simple, the productionprocess is environmentally friendly, the cost is low, the performance is excellent, and the high slump loss resistance type polycarboxylate water-reducer is suitable for popularization and application.
本发明公开了一种高保坍型聚羧酸减水剂及其制备方法，所述制备方法包括以下步骤：按质量份数计，将120‑130份丙烯酸、180‑200份不饱和酯、交联剂和水混合均匀制得溶液A；将链转移剂和水混合均匀得到溶液B；将还原剂和水混合均匀得到溶液C；将不饱和聚醚大单体和水加入到反应器中，加入引发剂混均匀，搅拌并加热到30‑40℃，同时加入溶液A、溶液B和溶液C，加入完毕后继续自然反应25～30分钟，然后加水混合均匀，即制得所述高保坍型聚羧酸减水剂。本发明的高保坍型聚羧酸减水剂的制备工艺简单、生产过程绿色环保、成本低，性能优异，适宜推广应用。
High slump loss resistance type polycarboxylate water-reducer and preparation method thereof
The invention discloses a high slump loss resistance type polycarboxylate water-reducer and a preparation method thereof. The preparation method comprises the following steps: mixing 120-130 parts bymass of acrylic acid, 180-200 parts by mass of unsaturated ester, a cross-linking agent and water to be uniform to prepare a solution A; uniformly mixing a chain transfer agent with water to obtain asolution B; uniformly mixing a reducing agent and water to obtain a solution C; and adding an unsaturated polyether macromonomer and water into a reactor, adding an initiator, uniformly mixing, stirring, heating to 30-40 DEG C, adding the solution A, the solution B and the solution C, continuously and naturally reacting for 25-30 minutes after addition is completed, adding water, and uniformly mixing to obtain the high slump loss resistance type polycarboxylate water-reducer. The preparation process of the high slump loss resistance type polycarboxylate water-reducer is simple, the productionprocess is environmentally friendly, the cost is low, the performance is excellent, and the high slump loss resistance type polycarboxylate water-reducer is suitable for popularization and application.
本发明公开了一种高保坍型聚羧酸减水剂及其制备方法，所述制备方法包括以下步骤：按质量份数计，将120‑130份丙烯酸、180‑200份不饱和酯、交联剂和水混合均匀制得溶液A；将链转移剂和水混合均匀得到溶液B；将还原剂和水混合均匀得到溶液C；将不饱和聚醚大单体和水加入到反应器中，加入引发剂混均匀，搅拌并加热到30‑40℃，同时加入溶液A、溶液B和溶液C，加入完毕后继续自然反应25～30分钟，然后加水混合均匀，即制得所述高保坍型聚羧酸减水剂。本发明的高保坍型聚羧酸减水剂的制备工艺简单、生产过程绿色环保、成本低，性能优异，适宜推广应用。
High slump loss resistance type polycarboxylate water-reducer and preparation method thereof
一种高保坍型聚羧酸减水剂及其制备方法
ZHOU LIU (author) / LI CAI (author) / JIANG YUANHUA (author) / ZHAO KUI (author) / PAN YUJIE (author) / WANG SHUHUA (author) / ZHANG SHENGNAN (author) / SUO XIMEI (author) / WANG YANG (author)
2021-03-30
Patent
Electronic Resource
Chinese
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