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Mud-resistant polycarboxylate superplasticizer and preparation method thereof
The invention relates to a mud-resistant polycarboxylate superplasticizer which comprises the following components by weight: 24-46 parts of a monomer A; 2-6 parts of a monomer B; 1-5 parts of maleate naphthaldehyde ester; 0.08-0.5 part of a chain transfer agent; 0.2-1.8 parts of an initiator; 40-70 parts of water; the monomer A is any one or more of methyl alkenyl polyoxyethylene ether, isobutenol polyoxyethylene ether, hydroxybutyl vinyl polyethylene glycol ether, ethyoxyl vinyl polyethylene glycol ether and allyl polyethylene glycol ether with the polymerization degree of 30-60, and the monomer B is any one or more of acrylic acid, maleic acid and itaconic acid. By providing large steric hindrance, the intercalation adsorption loss of the polycarboxylate superplasticizer is reduced, the sensitivity of the polycarboxylate superplasticizer to soil is effectively reduced, and the polycarboxylate superplasticizer is endowed with an anti-mud function.
一种抗泥型聚羧酸减水剂，包括如下重量份组分：单体A 24‑46份；单体B 2‑6份；马来酸萘甲醛酯1‑5份；链转移剂0.08‑0.5份；引发剂0.2‑1.8份；水40‑70份；其中，单体A为聚合度为30‑60的甲基烯基聚氧乙烯醚、异丁烯醇聚氧乙烯醚、羟丁基乙烯基聚乙二醇醚、乙氧基乙烯基聚乙二醇醚、烯丙基聚乙二醇醚中的任一种或几种，单体B为丙烯酸、马来酸、衣康酸中的任一种或几种。本发明通过提供较大的空间位阻减少聚羧酸减水剂的插层吸附损失，有效降低了聚羧酸减水剂对泥土的敏感性，赋予其抗泥功能。
Mud-resistant polycarboxylate superplasticizer and preparation method thereof
The invention relates to a mud-resistant polycarboxylate superplasticizer which comprises the following components by weight: 24-46 parts of a monomer A; 2-6 parts of a monomer B; 1-5 parts of maleate naphthaldehyde ester; 0.08-0.5 part of a chain transfer agent; 0.2-1.8 parts of an initiator; 40-70 parts of water; the monomer A is any one or more of methyl alkenyl polyoxyethylene ether, isobutenol polyoxyethylene ether, hydroxybutyl vinyl polyethylene glycol ether, ethyoxyl vinyl polyethylene glycol ether and allyl polyethylene glycol ether with the polymerization degree of 30-60, and the monomer B is any one or more of acrylic acid, maleic acid and itaconic acid. By providing large steric hindrance, the intercalation adsorption loss of the polycarboxylate superplasticizer is reduced, the sensitivity of the polycarboxylate superplasticizer to soil is effectively reduced, and the polycarboxylate superplasticizer is endowed with an anti-mud function.
一种抗泥型聚羧酸减水剂，包括如下重量份组分：单体A 24‑46份；单体B 2‑6份；马来酸萘甲醛酯1‑5份；链转移剂0.08‑0.5份；引发剂0.2‑1.8份；水40‑70份；其中，单体A为聚合度为30‑60的甲基烯基聚氧乙烯醚、异丁烯醇聚氧乙烯醚、羟丁基乙烯基聚乙二醇醚、乙氧基乙烯基聚乙二醇醚、烯丙基聚乙二醇醚中的任一种或几种，单体B为丙烯酸、马来酸、衣康酸中的任一种或几种。本发明通过提供较大的空间位阻减少聚羧酸减水剂的插层吸附损失，有效降低了聚羧酸减水剂对泥土的敏感性，赋予其抗泥功能。
Mud-resistant polycarboxylate superplasticizer and preparation method thereof
一种抗泥型聚羧酸减水剂及其制备方法
YAO BIN (author) / PAN CHENGGONG (author) / JIE MINGZHOU (author) / ZHANG DAN (author) / LIU YANG (author)
2022-01-04
Patent
Electronic Resource
Chinese
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