Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Special polycarboxylic acid water reducing agent for gypsum plaster board and preparation method of special polycarboxylic acid water reducing agent
The invention discloses a special polycarboxylic acid water reducing agent for a gypsum plaster board and a preparation method of the special polycarboxylic acid water reducing agent. The special polycarboxylic acid water reducing agent is prepared from methylallyl polyoxyethylene ether, acrylic acid, acrylamide, methacryloyl morpholine, 2-acrylamide-2-methylpropanesulfonic acid, sodium methallyl sulfonate, L-ascorbic acid, mercaptopropionic acid, a chain transfer agent, an initiator, a neutralizer and the balance of water. The polycarboxylate superplasticizer with multiple anchoring dispersing groups and a long branched side chain structure is synthesized through molecular structure modification, and the special polycarboxylate superplasticizer which is high in water reduction, low in air entraining, small in influence on gypsum coagulation, green and environmentally friendly and suitable for the gypsum plaster board is obtained through compound modification.
本发明公开了一种纸面石膏板专用聚羧酸减水剂及其制备方法，包括：甲基烯丙基聚氧乙烯醚、丙烯酸、丙烯酰铵、甲基丙烯酰吗啉、2‑丙烯酰胺‑2‑甲基丙磺酸、甲基丙烯磺酸钠、L‑抗坏血酸、巯基丙酸、链转移剂、引发剂、中和剂、余量为水。本发明通过分子结构修饰，合成了具有多锚固分散基、长支化侧链结构的聚羧酸减水剂，通过复配改性得到了一种兼具高减水、低引气、对石膏凝结影响小且绿色环保的适用于纸面石膏板的专用聚羧酸减水剂。
Special polycarboxylic acid water reducing agent for gypsum plaster board and preparation method of special polycarboxylic acid water reducing agent
The invention discloses a special polycarboxylic acid water reducing agent for a gypsum plaster board and a preparation method of the special polycarboxylic acid water reducing agent. The special polycarboxylic acid water reducing agent is prepared from methylallyl polyoxyethylene ether, acrylic acid, acrylamide, methacryloyl morpholine, 2-acrylamide-2-methylpropanesulfonic acid, sodium methallyl sulfonate, L-ascorbic acid, mercaptopropionic acid, a chain transfer agent, an initiator, a neutralizer and the balance of water. The polycarboxylate superplasticizer with multiple anchoring dispersing groups and a long branched side chain structure is synthesized through molecular structure modification, and the special polycarboxylate superplasticizer which is high in water reduction, low in air entraining, small in influence on gypsum coagulation, green and environmentally friendly and suitable for the gypsum plaster board is obtained through compound modification.
本发明公开了一种纸面石膏板专用聚羧酸减水剂及其制备方法，包括：甲基烯丙基聚氧乙烯醚、丙烯酸、丙烯酰铵、甲基丙烯酰吗啉、2‑丙烯酰胺‑2‑甲基丙磺酸、甲基丙烯磺酸钠、L‑抗坏血酸、巯基丙酸、链转移剂、引发剂、中和剂、余量为水。本发明通过分子结构修饰，合成了具有多锚固分散基、长支化侧链结构的聚羧酸减水剂，通过复配改性得到了一种兼具高减水、低引气、对石膏凝结影响小且绿色环保的适用于纸面石膏板的专用聚羧酸减水剂。
Special polycarboxylic acid water reducing agent for gypsum plaster board and preparation method of special polycarboxylic acid water reducing agent
一种纸面石膏板专用聚羧酸减水剂及其制备方法
LI SHUANG (Autor:in) / SU XINLU (Autor:in) / MAO RONGLIANG (Autor:in)
28.11.2023
Patent
Elektronische Ressource
Chinesisch
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