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Environment-friendly polyether macromonomer as well as preparation method and use method thereof
The invention discloses an environment-friendly polyether macromonomer as well as a preparation method and a use method thereof, and belongs to the technical field of polycarboxylic acid type water reducers, the environment-friendly polyether macromonomer comprises 1000 parts of polyether macromonomer, 10-50 parts of sodium hypophosphite with the concentration of 40%-60%, 0.05-0.25 part of hydroquinone, 0.05-0.25 part of 2-tert-butyl-1, 4-benzoquinone, 0.1-0.5 part of p-hydroxyanisole, 0.025-0.2 part of tetra [beta-(3, 4-dimethoxyphenyl)-1, 2, 4-triazole-1, 3, 4-triazole-1, 3, 4-triazole-1, 3, 4-triazole-1, 4-triazole-1 The invention discloses an environment-friendly polyether macromonomer, which is prepared from the following components in parts by weight: 0.05-0.25 part of 2, 2 '-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester and 0.05-0.25 part of 2, 2'-methylenebis (6-tert-butyl-4-methylphenol), the environment-friendly polyether macromonomer is prepared by replacing nitrogen for 3-5 times, and the pressure of a reaction kettle is controlled to be-0.08 to 0.08 MPa; the environment-friendly polyether macromonomer needs to be vacuumized until the micro negative pressure is-0.06 to-0.04 MPa; the temperature rise time of the environment-friendly polyether macromonomer is 40-50 min; the preparation temperature of the polyether macromonomer is 110-130 DEG C, the stirring time of the environment-friendly polyether macromonomer is 50-100 minutes, and the technical problem of serious environmental pollution in the synthesis process of the existing water reducing agent is solved.
本发明公开了一种环保聚醚大单体及其制备方法和使用方法，属于聚羧酸系减水剂技术领域，一种环保聚醚大单体包括1000份聚醚大单体，10～50份40％～60％浓度的次亚磷酸钠，0.05～0.25份对苯二酚，0.05～0.25份2‑叔丁基‑1,4‑苯醌，0.1～0.5份对羟基苯甲醚，0.025～0.2份四[β‑(3，5‑二叔丁基‑4‑羟基苯基)丙酸]季戊四醇酯，0.05～0.25份2,2'‑亚甲基双(6‑叔丁基‑4‑甲基苯酚)，所述环保聚醚大单体制备需氮气置换3～5次，反应釜压力控制在‑0.08～0.08MPa；环保聚醚大单体需抽真空至微负压至‑0.06～‑0.04MPa；环保聚醚大单体的升温时间为40～50min；保聚醚大单体的制备温度为110～130℃，环保聚醚大单体的搅拌时间为50～100min，解决了现有减水剂合成过程中环境污染大的技术问题。
Environment-friendly polyether macromonomer as well as preparation method and use method thereof
The invention discloses an environment-friendly polyether macromonomer as well as a preparation method and a use method thereof, and belongs to the technical field of polycarboxylic acid type water reducers, the environment-friendly polyether macromonomer comprises 1000 parts of polyether macromonomer, 10-50 parts of sodium hypophosphite with the concentration of 40%-60%, 0.05-0.25 part of hydroquinone, 0.05-0.25 part of 2-tert-butyl-1, 4-benzoquinone, 0.1-0.5 part of p-hydroxyanisole, 0.025-0.2 part of tetra [beta-(3, 4-dimethoxyphenyl)-1, 2, 4-triazole-1, 3, 4-triazole-1, 3, 4-triazole-1, 3, 4-triazole-1, 4-triazole-1 The invention discloses an environment-friendly polyether macromonomer, which is prepared from the following components in parts by weight: 0.05-0.25 part of 2, 2 '-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester and 0.05-0.25 part of 2, 2'-methylenebis (6-tert-butyl-4-methylphenol), the environment-friendly polyether macromonomer is prepared by replacing nitrogen for 3-5 times, and the pressure of a reaction kettle is controlled to be-0.08 to 0.08 MPa; the environment-friendly polyether macromonomer needs to be vacuumized until the micro negative pressure is-0.06 to-0.04 MPa; the temperature rise time of the environment-friendly polyether macromonomer is 40-50 min; the preparation temperature of the polyether macromonomer is 110-130 DEG C, the stirring time of the environment-friendly polyether macromonomer is 50-100 minutes, and the technical problem of serious environmental pollution in the synthesis process of the existing water reducing agent is solved.
本发明公开了一种环保聚醚大单体及其制备方法和使用方法，属于聚羧酸系减水剂技术领域，一种环保聚醚大单体包括1000份聚醚大单体，10～50份40％～60％浓度的次亚磷酸钠，0.05～0.25份对苯二酚，0.05～0.25份2‑叔丁基‑1,4‑苯醌，0.1～0.5份对羟基苯甲醚，0.025～0.2份四[β‑(3，5‑二叔丁基‑4‑羟基苯基)丙酸]季戊四醇酯，0.05～0.25份2,2'‑亚甲基双(6‑叔丁基‑4‑甲基苯酚)，所述环保聚醚大单体制备需氮气置换3～5次，反应釜压力控制在‑0.08～0.08MPa；环保聚醚大单体需抽真空至微负压至‑0.06～‑0.04MPa；环保聚醚大单体的升温时间为40～50min；保聚醚大单体的制备温度为110～130℃，环保聚醚大单体的搅拌时间为50～100min，解决了现有减水剂合成过程中环境污染大的技术问题。
Environment-friendly polyether macromonomer as well as preparation method and use method thereof
一种环保聚醚大单体及其制备方法和使用方法
YANG WEIDONG (author) / YANG YUNXIAN (author) / LUO QIONG (author) / ZHENG TIECHENG (author) / QIAN YIFEI (author) / ZHU WEIGANG (author) / ZHU XIAODONG (author)
2023-10-27
Patent
Electronic Resource
Chinese
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