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Unsaturated phosphate containing catechol group, polycarboxylate superplasticizer and preparation method of unsaturated phosphate and polycarboxylate superplasticizer
The invention belongs to the technical field of concrete, and particularly relates to unsaturated phosphate containing catechol groups, a polycarboxylate superplasticizer and preparation methods of the unsaturated phosphate and the polycarboxylate superplasticizer, the unsaturated phosphate containing the catechol groups has a structural formula shown in the specification, R1 is hydrogen or methyl, and R2 is methyl or ethyl, so as to solve the problem that concrete has different environmental temperatures and different aggregate mud contents, and the concrete is not prone to cracking. And the problems of sensitivity, fast loss, large hysteresis return and bleeding under different admixtures are solved.
本发明属于混凝土技术领域，特别涉及一种含邻苯二酚基团的不饱和磷酸酯和聚羧酸减水剂及其制备方法，该含邻苯二酚基团的不饱和磷酸酯，其结构式如下：其中，R1为氢或甲基，R2为甲基或乙基，以解决混凝土不同环境温度，不同骨料含泥量，不同外加剂掺量下的敏感性，损失快和滞后返大以及泌水的问题。
Unsaturated phosphate containing catechol group, polycarboxylate superplasticizer and preparation method of unsaturated phosphate and polycarboxylate superplasticizer
The invention belongs to the technical field of concrete, and particularly relates to unsaturated phosphate containing catechol groups, a polycarboxylate superplasticizer and preparation methods of the unsaturated phosphate and the polycarboxylate superplasticizer, the unsaturated phosphate containing the catechol groups has a structural formula shown in the specification, R1 is hydrogen or methyl, and R2 is methyl or ethyl, so as to solve the problem that concrete has different environmental temperatures and different aggregate mud contents, and the concrete is not prone to cracking. And the problems of sensitivity, fast loss, large hysteresis return and bleeding under different admixtures are solved.
本发明属于混凝土技术领域，特别涉及一种含邻苯二酚基团的不饱和磷酸酯和聚羧酸减水剂及其制备方法，该含邻苯二酚基团的不饱和磷酸酯，其结构式如下：其中，R1为氢或甲基，R2为甲基或乙基，以解决混凝土不同环境温度，不同骨料含泥量，不同外加剂掺量下的敏感性，损失快和滞后返大以及泌水的问题。
Unsaturated phosphate containing catechol group, polycarboxylate superplasticizer and preparation method of unsaturated phosphate and polycarboxylate superplasticizer
一种含邻苯二酚基团的不饱和磷酸酯和聚羧酸减水剂及其制备方法
NIE WUCHENG (author) / WEI XIAOHONG (author) / WANG RENTONG (author) / HUANG XU (author) / WEI JINYOU (author)
2022-11-25
Patent
Electronic Resource
Chinese
IPC:
C07F
Acyclische, carbocyclische oder heterocyclische Verbindungen, die andere Elemente als Kohlenstoff, Wasserstoff, Halogen, Sauerstoff, Stickstoff, Schwefel, Selen oder Tellur enthalten
,
ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
/
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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