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Machine-made sand adaptive polycarboxylate superplasticizer synthesized from fluorine-containing polyether and preparation method of machine-made sand adaptive polycarboxylate superplasticizer
The invention discloses a fluorine-containing polyether synthesized machine-made sand adaptive polycarboxylate superplasticizer and a preparation method thereof. In order to introduce a functional group containing a fluorine element into an ether bond molecular structure, an epoxy compound containing the fluorine element is added after a polymerization reaction of ethylene oxide or propylene oxide or a mixture of the ethylene oxide and the propylene oxide, so that the unsaturated modified polyoxyethylene ether with the terminal group containing the fluorine element is synthesized. By introducing the fluorine element, the dispersity and the stone powder and soil resistance of the synthesized polycarboxylic acid water reducer can be greatly changed, so that the polycarboxylic acid water reducer is adaptive to concrete engineering using machine-made sand.
本发明公开了一种含氟聚醚合成的机制砂适配型聚羧酸减水剂及其制备方法。本发明为了使醚键分子结构中能够引入含有氟元素的官能团，在环氧乙烷或环氧丙烷或二者的混合物的聚合反应后，加入含有氟元素的环氧化合物，从而合成端基含有氟元素的不饱和改性聚氧乙烯醚。氟元素的引入，可以大幅度改变所合成的聚羧酸减水剂的分散性和抗石粉和泥土性能，从而使之适配使用机制砂的混凝土工程。
Machine-made sand adaptive polycarboxylate superplasticizer synthesized from fluorine-containing polyether and preparation method of machine-made sand adaptive polycarboxylate superplasticizer
The invention discloses a fluorine-containing polyether synthesized machine-made sand adaptive polycarboxylate superplasticizer and a preparation method thereof. In order to introduce a functional group containing a fluorine element into an ether bond molecular structure, an epoxy compound containing the fluorine element is added after a polymerization reaction of ethylene oxide or propylene oxide or a mixture of the ethylene oxide and the propylene oxide, so that the unsaturated modified polyoxyethylene ether with the terminal group containing the fluorine element is synthesized. By introducing the fluorine element, the dispersity and the stone powder and soil resistance of the synthesized polycarboxylic acid water reducer can be greatly changed, so that the polycarboxylic acid water reducer is adaptive to concrete engineering using machine-made sand.
本发明公开了一种含氟聚醚合成的机制砂适配型聚羧酸减水剂及其制备方法。本发明为了使醚键分子结构中能够引入含有氟元素的官能团，在环氧乙烷或环氧丙烷或二者的混合物的聚合反应后，加入含有氟元素的环氧化合物，从而合成端基含有氟元素的不饱和改性聚氧乙烯醚。氟元素的引入，可以大幅度改变所合成的聚羧酸减水剂的分散性和抗石粉和泥土性能，从而使之适配使用机制砂的混凝土工程。
Machine-made sand adaptive polycarboxylate superplasticizer synthesized from fluorine-containing polyether and preparation method of machine-made sand adaptive polycarboxylate superplasticizer
一种含氟聚醚合成的机制砂适配型聚羧酸减水剂及其制备方法
ZHU WEILIANG (author) / SHAO YUEFENG (author)
2023-05-16
Patent
Electronic Resource
Chinese
IPC:
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
/
C04B
Kalk
,
LIME
/
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
| European Patent Office | 2022
| European Patent Office | 2020
| European Patent Office | 2022
| European Patent Office | 2023
| European Patent Office | 2023