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Mud-resistant polycarboxylate superplasticizer and synthesis process thereof
The synthesis process comprises the following steps: preparation of a binding agent A: pouring 15-35 parts of furfural and/or 5-hydroxymethylfurfural into a reaction kettle to serve as a reaction base substance, enabling a photocatalyst and the reaction base substance to form a catalytic system, adding a solvent and an oxidizing agent, and under the irradiation of visible light of 480-580 nm, reacting for 1-2 hours at the temperature of 60-80 DEG C to obtain the binding agent A; the furfural and the 5-hydroxymethylfurfural are efficiently converted into the maleic anhydride under the condition that the temperature does not exceed 40 DEG C; 8-20 parts by weight of methacrylic acid, 35-60 parts by weight of methoxypolyethylene glycol, 3-9 parts by weight of an activating agent and 30-55 parts by weight of a dispersing water-carrying agent are put into a reaction container and slowly heated to 80 DEG C, heat preservation is conducted for 1-2 h, standing is conducted for 3-5 h, natural cooling is conducted, impurities are fished out, and acrylic acid polyethylene glycol monoester is obtained. The properties of the polymers obtained according to different corresponding weight parts are different, so that an optimal scheme is detected, and the dispersity of the polycarboxylate superplasticizer is improved.
本发明公开了抗泥型聚羧酸减水剂及其合成工艺，包括结合剂A的制备：将15‑35份的糠醛和/或5‑羟甲基糠醛倒入反应釜中作为反应基物，使得光催化剂和反应基物形成催化体系，加入溶剂、氧化剂，在480‑580nm的可见光的照射下，在温度不超过40°C的条件下，实现糠醛和5‑羟甲基糠醛高效转化到马来酸酐；结合剂B的制备：将8‑20份的甲基丙烯酸、35‑60份的聚乙二醇单甲醚、3‑9份的活化剂、30‑55份的分散带水剂放入反应容器中，缓慢加热，加热至80°C保温1h‑2h，静止3～5h，自然冷却，打捞杂质，得到丙烯酸聚乙二醇单酯，本发明，使用不同重量份进行分别混合，得出各个不同相应重量份得出的聚合物性能不同，由此检测出最佳方案，提升聚羧酸减水剂的分散性。
Mud-resistant polycarboxylate superplasticizer and synthesis process thereof
The synthesis process comprises the following steps: preparation of a binding agent A: pouring 15-35 parts of furfural and/or 5-hydroxymethylfurfural into a reaction kettle to serve as a reaction base substance, enabling a photocatalyst and the reaction base substance to form a catalytic system, adding a solvent and an oxidizing agent, and under the irradiation of visible light of 480-580 nm, reacting for 1-2 hours at the temperature of 60-80 DEG C to obtain the binding agent A; the furfural and the 5-hydroxymethylfurfural are efficiently converted into the maleic anhydride under the condition that the temperature does not exceed 40 DEG C; 8-20 parts by weight of methacrylic acid, 35-60 parts by weight of methoxypolyethylene glycol, 3-9 parts by weight of an activating agent and 30-55 parts by weight of a dispersing water-carrying agent are put into a reaction container and slowly heated to 80 DEG C, heat preservation is conducted for 1-2 h, standing is conducted for 3-5 h, natural cooling is conducted, impurities are fished out, and acrylic acid polyethylene glycol monoester is obtained. The properties of the polymers obtained according to different corresponding weight parts are different, so that an optimal scheme is detected, and the dispersity of the polycarboxylate superplasticizer is improved.
本发明公开了抗泥型聚羧酸减水剂及其合成工艺，包括结合剂A的制备：将15‑35份的糠醛和/或5‑羟甲基糠醛倒入反应釜中作为反应基物，使得光催化剂和反应基物形成催化体系，加入溶剂、氧化剂，在480‑580nm的可见光的照射下，在温度不超过40°C的条件下，实现糠醛和5‑羟甲基糠醛高效转化到马来酸酐；结合剂B的制备：将8‑20份的甲基丙烯酸、35‑60份的聚乙二醇单甲醚、3‑9份的活化剂、30‑55份的分散带水剂放入反应容器中，缓慢加热，加热至80°C保温1h‑2h，静止3～5h，自然冷却，打捞杂质，得到丙烯酸聚乙二醇单酯，本发明，使用不同重量份进行分别混合，得出各个不同相应重量份得出的聚合物性能不同，由此检测出最佳方案，提升聚羧酸减水剂的分散性。
Mud-resistant polycarboxylate superplasticizer and synthesis process thereof
抗泥型聚羧酸减水剂及其合成工艺
SU XIANGDONG (author) / BAI TIANYAN (author) / ZHANG YAOJUN (author)
2022-04-26
Patent
Electronic Resource
Chinese
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