Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Clay-resistant phosphonic acid-based super plasticizer and preparation method thereof
The invention discloses a clay-resistant phosphonic acid-based super plasticizer and a preparation method thereof. The clay-resistant phosphonic acid-based super plasticizer is obtained by carrying out an amidation reaction on the carboxylic ester modified polyether intermediate and an amination reagent to obtain a reaction product and then carrying out phosphonation reaction on the reaction product, phosphorous acid and an aldehyde monomer. The carboxylic ester modified polyether intermediate is formed by polymerizing a hydroxyl carboxylic ester compound and alkylene oxide. The clay-resistant phosphonic acid-based super plasticizer is high in monomer structure adjustability and high in cost performance, corrosive elements such as chloride ions cannot be generated in the preparation process, and the slump retaining performance, the retarding performance and the clay tolerance performance are excellent.
本发明公开了一种耐粘土型膦酸基超塑化剂及其制备方法。所述耐粘土型膦酸基超塑化剂由所述羧酸酯改性聚醚中间体与胺化试剂发生酰胺化反应，获得反应产物再与亚磷酸以及醛类单体进行膦酸化反应获得。所述羧酸酯改性聚醚中间体由羟基羧酸酯类化合物和环氧烷烃聚合而成。所述耐粘土型膦酸基超塑化剂的单体结构可调性强、性价比高、制备工艺不会产生氯离子等腐蚀性元素，保坍、缓凝和粘土耐受性能优异。
Clay-resistant phosphonic acid-based super plasticizer and preparation method thereof
The invention discloses a clay-resistant phosphonic acid-based super plasticizer and a preparation method thereof. The clay-resistant phosphonic acid-based super plasticizer is obtained by carrying out an amidation reaction on the carboxylic ester modified polyether intermediate and an amination reagent to obtain a reaction product and then carrying out phosphonation reaction on the reaction product, phosphorous acid and an aldehyde monomer. The carboxylic ester modified polyether intermediate is formed by polymerizing a hydroxyl carboxylic ester compound and alkylene oxide. The clay-resistant phosphonic acid-based super plasticizer is high in monomer structure adjustability and high in cost performance, corrosive elements such as chloride ions cannot be generated in the preparation process, and the slump retaining performance, the retarding performance and the clay tolerance performance are excellent.
本发明公开了一种耐粘土型膦酸基超塑化剂及其制备方法。所述耐粘土型膦酸基超塑化剂由所述羧酸酯改性聚醚中间体与胺化试剂发生酰胺化反应，获得反应产物再与亚磷酸以及醛类单体进行膦酸化反应获得。所述羧酸酯改性聚醚中间体由羟基羧酸酯类化合物和环氧烷烃聚合而成。所述耐粘土型膦酸基超塑化剂的单体结构可调性强、性价比高、制备工艺不会产生氯离子等腐蚀性元素，保坍、缓凝和粘土耐受性能优异。
Clay-resistant phosphonic acid-based super plasticizer and preparation method thereof
一种耐粘土型膦酸基超塑化剂及其制备方法
QI SHUAI (Autor:in) / WANG TAO (Autor:in) / YANG YONG (Autor:in) / RAN QIANPING (Autor:in) / WANG BING (Autor:in) / SHI ZHAN (Autor:in) / WANG FANGGANG (Autor:in) / ZHAO SHAOPENG (Autor:in)
16.07.2021
Patent
Elektronische Ressource
Chinesisch
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