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Reduction type MXene polycarboxylate superplasticizer and preparation method thereof
The invention relates to a reduction type MXene polycarboxylate superplasticizer and a preparation method thereof. The reduction type MXene polycarboxylate superplasticizer is prepared from the following raw materials in parts by mass: 0.2 to 1.0 part of MXene, 0.1 to 2.0 parts of methacryloxysilane, 0.001 to 0.005 part of a catalyst, 175 to 225 parts of a polyether monomer, 15 to 40 parts of an unsaturated carboxylic acid small monomer, 0.6 to 1.0 part of a chain transfer agent, 0.4 to 1.0 part of an initiator, 0.2 to 0.5 part of a reducing agent and alkali liquor. The MXene polycarboxylic acid water reducing agent has relatively large steric hindrance, and can improve the fluidity of a concrete mixture; rich active groups and surface charges of the MXene enable the MXene to be well combined with concrete through electrostatic interaction, Van der Waals, hydrogen bonds and other acting forces, so that the workability of the polycarboxylate superplasticizer is improved; the water reducing agent provided by the invention shows good water reducing, slump retaining and shrinkage reducing properties.
一种减缩型MXene聚羧酸减水剂及其制备方法。按质量份计，所述减缩型MXene聚羧酸减水剂的原料包括0.2‑1.0份MXene、0.1‑2.0份甲基丙烯酰氧基硅烷、0.001‑0.005份催化剂、175‑225份聚醚单体、15‑40份不饱和羧酸小单体、0.6‑1.0份链转移剂、0.4‑1.0份引发剂、0.2‑0.5份还原剂和碱液。所述MXene聚羧酸减水剂具有较大的空间位阻，能够改善混凝土拌合物的流动性；MXene丰富的活性基团和表面电荷使其能够通过静电作用、范德华、氢键等作用力与混凝土良好结合，增加聚羧酸减水剂的和易性；本发明提供的减水剂显示出良好的减水、保坍及减缩性能。
Reduction type MXene polycarboxylate superplasticizer and preparation method thereof
The invention relates to a reduction type MXene polycarboxylate superplasticizer and a preparation method thereof. The reduction type MXene polycarboxylate superplasticizer is prepared from the following raw materials in parts by mass: 0.2 to 1.0 part of MXene, 0.1 to 2.0 parts of methacryloxysilane, 0.001 to 0.005 part of a catalyst, 175 to 225 parts of a polyether monomer, 15 to 40 parts of an unsaturated carboxylic acid small monomer, 0.6 to 1.0 part of a chain transfer agent, 0.4 to 1.0 part of an initiator, 0.2 to 0.5 part of a reducing agent and alkali liquor. The MXene polycarboxylic acid water reducing agent has relatively large steric hindrance, and can improve the fluidity of a concrete mixture; rich active groups and surface charges of the MXene enable the MXene to be well combined with concrete through electrostatic interaction, Van der Waals, hydrogen bonds and other acting forces, so that the workability of the polycarboxylate superplasticizer is improved; the water reducing agent provided by the invention shows good water reducing, slump retaining and shrinkage reducing properties.
一种减缩型MXene聚羧酸减水剂及其制备方法。按质量份计，所述减缩型MXene聚羧酸减水剂的原料包括0.2‑1.0份MXene、0.1‑2.0份甲基丙烯酰氧基硅烷、0.001‑0.005份催化剂、175‑225份聚醚单体、15‑40份不饱和羧酸小单体、0.6‑1.0份链转移剂、0.4‑1.0份引发剂、0.2‑0.5份还原剂和碱液。所述MXene聚羧酸减水剂具有较大的空间位阻，能够改善混凝土拌合物的流动性；MXene丰富的活性基团和表面电荷使其能够通过静电作用、范德华、氢键等作用力与混凝土良好结合，增加聚羧酸减水剂的和易性；本发明提供的减水剂显示出良好的减水、保坍及减缩性能。
Reduction type MXene polycarboxylate superplasticizer and preparation method thereof
一种减缩型MXene聚羧酸减水剂及其制备方法
SEOK BYEONG-CHEON (author) / LUO QIONG (author) / ZHANG BEIBEI (author) / ZHENG XIAOLING (author) / LU YIFAN (author) / SUN LIQIANG (author) / ZHENG ZUNTAO (author)
2024-06-11
Patent
Electronic Resource
Chinese
IPC:
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
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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