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Polycondensation type phosphate water reducing agent as well as preparation method and application thereof
The invention provides a polycondensation type phosphate water reducer and a preparation method and application thereof.According to the polycondensation type phosphate water reducer, glycidyl reacts with a phenyl ether monomer containing hydroxyl at the tail end to obtain a polyhydroxy compound, the polyhydroxy compound is subjected to phosphate esterification to obtain a phenyl phosphate monomer containing multiple phosphate groups, and the phenyl phosphate monomer containing multiple phosphate groups is subjected to condensation polymerization to obtain the polycondensation type phosphate water reducer. And carrying out condensation with a phenyl polyether monomer and formaldehyde to obtain the polycondensation type phosphate water reducing agent. Due to the fact that the phosphate groups are high in aggregation and adsorption capacity, the water reducing agent has high adsorption capacity, and due to the steric hindrance effect of polyether chains, the obtained polycondensation type phosphate water reducing agent has good dispersing performance, anti-clay performance and adaptability to cement.
本发明提供了一种缩聚型磷酸盐减水剂及其制备方法和应用，该缩聚型磷酸盐减水剂通过缩水甘油与末端含羟基的苯醚类单体反应，得到多羟基化合物，进行磷酸酯化后得到含有多个磷酸基团的苯基磷酸盐单体，再与苯基聚醚单体、甲醛进行缩合，得到缩聚型磷酸盐减水剂。由于磷酸基团集聚，吸附能力强，使得减水剂具有很强的吸附能力，加上聚醚链的空间位阻作用，得到的缩聚型磷酸盐减水剂具有很好分散性能、抗黏土性能、及对水泥的适应性。
Polycondensation type phosphate water reducing agent as well as preparation method and application thereof
The invention provides a polycondensation type phosphate water reducer and a preparation method and application thereof.According to the polycondensation type phosphate water reducer, glycidyl reacts with a phenyl ether monomer containing hydroxyl at the tail end to obtain a polyhydroxy compound, the polyhydroxy compound is subjected to phosphate esterification to obtain a phenyl phosphate monomer containing multiple phosphate groups, and the phenyl phosphate monomer containing multiple phosphate groups is subjected to condensation polymerization to obtain the polycondensation type phosphate water reducer. And carrying out condensation with a phenyl polyether monomer and formaldehyde to obtain the polycondensation type phosphate water reducing agent. Due to the fact that the phosphate groups are high in aggregation and adsorption capacity, the water reducing agent has high adsorption capacity, and due to the steric hindrance effect of polyether chains, the obtained polycondensation type phosphate water reducing agent has good dispersing performance, anti-clay performance and adaptability to cement.
本发明提供了一种缩聚型磷酸盐减水剂及其制备方法和应用，该缩聚型磷酸盐减水剂通过缩水甘油与末端含羟基的苯醚类单体反应，得到多羟基化合物，进行磷酸酯化后得到含有多个磷酸基团的苯基磷酸盐单体，再与苯基聚醚单体、甲醛进行缩合，得到缩聚型磷酸盐减水剂。由于磷酸基团集聚，吸附能力强，使得减水剂具有很强的吸附能力，加上聚醚链的空间位阻作用，得到的缩聚型磷酸盐减水剂具有很好分散性能、抗黏土性能、及对水泥的适应性。
Polycondensation type phosphate water reducing agent as well as preparation method and application thereof
一种缩聚型磷酸盐减水剂及其制备方法和应用
YANG YONG (author) / WANG BING (author) / WANG TAO (author) / HAN ZHENG (author) / XIA ZHENGYI (author) / HUANG ZHEN (author) / SHU XIN (author) / YU YINHUI (author)
2024-05-10
Patent
Electronic Resource
Chinese
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