Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polycarboxylate superplasticizer containing biphenyl group side chain and preparation method thereof
The invention discloses a polycarboxylate superplasticizer containing a biphenyl group side chain and a preparation method thereof, the polycarboxylate superplasticizer comprises an unsaturated polyether macromonomer, an unsaturated carboxylic acid monomer and a biphenyl group-containing carboxylic ester, and the molar ratio of the unsaturated polyether macromonomer to the unsaturated carboxylic acid monomer to the biphenyl group-containing carboxylic ester is 1: (2-3): (0.1-0.4); the structure of the carboxylic ester containing the biphenyl group is as follows: # imgabs0 # R =-CH3,-CH2CH3,-CH (CH3) 2,-CH2CH (CH3) 2 and-Ar; the compound can effectively solve the problems of floating oil and black ash on the surface of the existing concrete, reduce the sensitivity to soil and improve the dispersity, the concrete is always consistent in slurry distribution on the surface, middle and bottom layer of the concrete from discharging to pumping, the slurry of the concrete is soft and not hardened from beginning to end, the construction performance of the concrete is effectively improved, and the quality of the concrete is improved.
本发明公开了一种含联苯基团侧链的聚羧酸减水剂及其制备方法，包括不饱和聚醚大单体、不饱和羧酸单体和含联苯基团羧酸酯，不饱和聚醚大单体、不饱和羧酸单体和含联苯基团羧酸酯的摩尔比为1∶2‑3∶0.1‑0.4；含联苯基团羧酸酯的结构如下：#imgabs0#R＝‑CH3、‑CH2CH3、‑CH(CH3)2、‑CH2CH(CH3)2、‑Ar；该化合物可有效解决现有混凝土表面浮油、黑灰问题，降低对泥土的敏感性，提高分散性，混凝土从出机到泵送，桨体在混凝土表面、中间、底层分布始终一致，且混凝土自始至终桨体柔和不板结，有效改善混凝土的施工性能，提高混凝土的品质。
Polycarboxylate superplasticizer containing biphenyl group side chain and preparation method thereof
The invention discloses a polycarboxylate superplasticizer containing a biphenyl group side chain and a preparation method thereof, the polycarboxylate superplasticizer comprises an unsaturated polyether macromonomer, an unsaturated carboxylic acid monomer and a biphenyl group-containing carboxylic ester, and the molar ratio of the unsaturated polyether macromonomer to the unsaturated carboxylic acid monomer to the biphenyl group-containing carboxylic ester is 1: (2-3): (0.1-0.4); the structure of the carboxylic ester containing the biphenyl group is as follows: # imgabs0 # R =-CH3,-CH2CH3,-CH (CH3) 2,-CH2CH (CH3) 2 and-Ar; the compound can effectively solve the problems of floating oil and black ash on the surface of the existing concrete, reduce the sensitivity to soil and improve the dispersity, the concrete is always consistent in slurry distribution on the surface, middle and bottom layer of the concrete from discharging to pumping, the slurry of the concrete is soft and not hardened from beginning to end, the construction performance of the concrete is effectively improved, and the quality of the concrete is improved.
本发明公开了一种含联苯基团侧链的聚羧酸减水剂及其制备方法，包括不饱和聚醚大单体、不饱和羧酸单体和含联苯基团羧酸酯，不饱和聚醚大单体、不饱和羧酸单体和含联苯基团羧酸酯的摩尔比为1∶2‑3∶0.1‑0.4；含联苯基团羧酸酯的结构如下：#imgabs0#R＝‑CH3、‑CH2CH3、‑CH(CH3)2、‑CH2CH(CH3)2、‑Ar；该化合物可有效解决现有混凝土表面浮油、黑灰问题，降低对泥土的敏感性，提高分散性，混凝土从出机到泵送，桨体在混凝土表面、中间、底层分布始终一致，且混凝土自始至终桨体柔和不板结，有效改善混凝土的施工性能，提高混凝土的品质。
Polycarboxylate superplasticizer containing biphenyl group side chain and preparation method thereof
一种含联苯基团侧链的聚羧酸减水剂及其制备方法
WANG SHAOFENG (Autor:in) / LIU WENKANG (Autor:in) / YAN SHENGDONG (Autor:in) / BI YAO (Autor:in) / HU TENG (Autor:in) / ZHOU HUI (Autor:in) / SHANG JIAQI (Autor:in) / CHEN LONG (Autor:in) / CAI XIN (Autor:in)
06.02.2024
Patent
Elektronische Ressource
Chinesisch
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