Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polymerization inhibitor and preparation method thereof, and mild slow-release slump-retaining polycarboxylic acid water reducer mother liquor and preparation method thereof
The invention provides a polymerization inhibitor and a preparation method thereof, and a mild slow-release slump-retaining polycarboxylic acid water reducer mother liquor and a preparation method thereof, the polymerization inhibitor provided by the invention has the following structural formula: (CH3OCH2) p-C6H4-OOC (CH2CH2) n-SH, n in the formula is 2 or 3 or 4, p refers to a group para-position, and the relative molecular mass of the polymerization inhibitor is 200-320. According to the invention, ethylene glycol monovinyl polyglycol ether is used to obtain a more flexible side chain of the polycarboxylic acid water reducer, and a polymerization inhibitor is used in the reaction to prevent self-polymerization of monomers and play a role of a chain transfer agent, so that the finally prepared polycarboxylic acid water reducer mother liquor has the advantages of high water-reducing rate, good slow-release slump retaining performance, simple process, low cost and the like. The dispersity is good, and the like. Meanwhile, the product has the advantages of safety, stability, no chloride ion, no corrosion to reinforcing steel bars, no pollution to the environment and the like.
本发明提供了聚合抑制剂及其制备方法、温和型缓释保坍聚羧酸减水剂母液及其制备方法，本发明提供的聚合抑制剂结构式如下：(CH3OCH2)p‑C6H4‑OOC(CH2CH2)n‑SH，式中n的范围为2或3或4，p指基团对位，聚合抑制剂的相对分子质量为200～320。本发明使用乙二醇单乙烯基聚乙二醇醚来得到更加舒展灵活的聚羧酸减水剂侧链，同时在反应中使用聚合抑制剂，防止单体自聚的同时起到了链转移剂的作用，使得最终制得的聚羧酸减水剂母液具有减水率高，缓释保坍性能好，工艺简单，分散性良好等特点。同时产品安全稳定，不含氯离子，对钢筋无锈蚀，对环境无污染等优点。
Polymerization inhibitor and preparation method thereof, and mild slow-release slump-retaining polycarboxylic acid water reducer mother liquor and preparation method thereof
The invention provides a polymerization inhibitor and a preparation method thereof, and a mild slow-release slump-retaining polycarboxylic acid water reducer mother liquor and a preparation method thereof, the polymerization inhibitor provided by the invention has the following structural formula: (CH3OCH2) p-C6H4-OOC (CH2CH2) n-SH, n in the formula is 2 or 3 or 4, p refers to a group para-position, and the relative molecular mass of the polymerization inhibitor is 200-320. According to the invention, ethylene glycol monovinyl polyglycol ether is used to obtain a more flexible side chain of the polycarboxylic acid water reducer, and a polymerization inhibitor is used in the reaction to prevent self-polymerization of monomers and play a role of a chain transfer agent, so that the finally prepared polycarboxylic acid water reducer mother liquor has the advantages of high water-reducing rate, good slow-release slump retaining performance, simple process, low cost and the like. The dispersity is good, and the like. Meanwhile, the product has the advantages of safety, stability, no chloride ion, no corrosion to reinforcing steel bars, no pollution to the environment and the like.
本发明提供了聚合抑制剂及其制备方法、温和型缓释保坍聚羧酸减水剂母液及其制备方法，本发明提供的聚合抑制剂结构式如下：(CH3OCH2)p‑C6H4‑OOC(CH2CH2)n‑SH，式中n的范围为2或3或4，p指基团对位，聚合抑制剂的相对分子质量为200～320。本发明使用乙二醇单乙烯基聚乙二醇醚来得到更加舒展灵活的聚羧酸减水剂侧链，同时在反应中使用聚合抑制剂，防止单体自聚的同时起到了链转移剂的作用，使得最终制得的聚羧酸减水剂母液具有减水率高，缓释保坍性能好，工艺简单，分散性良好等特点。同时产品安全稳定，不含氯离子，对钢筋无锈蚀，对环境无污染等优点。
Polymerization inhibitor and preparation method thereof, and mild slow-release slump-retaining polycarboxylic acid water reducer mother liquor and preparation method thereof
聚合抑制剂及其制备方法、温和型缓释保坍聚羧酸减水剂母液及其制备方法
ZHU XUERUI (Autor:in) / WANG YU (Autor:in) / JIANG DACHAO (Autor:in) / HUANG WEIXING (Autor:in) / WEN LIXIN (Autor:in) / WANG HAIXING (Autor:in) / WANG WENXIANG (Autor:in)
05.05.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C07C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
,
Acyclische oder carbocyclische Verbindungen
/
C04B
Kalk
,
LIME
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
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