POLYHYDROXYL AIR-ENTRAINING RETARDING WATER REDUCER AND PREPARATION METHOD THEREFOR

Title:

POLYHYDROXYL AIR-ENTRAINING RETARDING WATER REDUCER AND PREPARATION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2022/127210

Kind Code:

A1

Abstract:

The present invention relates to the technical field of concrete admixtures, and specifically relates to a polyhydroxyl air-entraining retarding water reducer and a preparation method therefor. The water reducer comprises: a retarding polymer, the retarding polymer comprising a polymer or copolymer derived from a monomer. The monomer comprises: (1) a retarding monomer and an air-entraining monomer; and (2) at least one among a vinyl ether macromonomer, unsaturated acid, and unsaturated ester. The use of the polyhydroxyl air-entraining retarding water reducer provided by the present invention can delay the hydration of cement and introduce bubbles and stable bubbles into the concrete, thereby achieving the effect of retardation and long-term air entrainment. Furthermore, the water reducer has antibacterial, anti-corrosion, high dispersion and slump effects, thus having broad marketing application prospects.

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Inventors:

ZHONG LINA (CN)
FANG YUNHUI (CN)
WANG ZHAOPENG (CN)
KE YULIANG (CN)
ZHANG XIAOFANG (CN)

Application Number:

PCT/CN2021/117248

Publication Date:

June 23, 2022

Filing Date:

September 08, 2021

Export Citation:

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Assignee:

KZJ NEW MAT GROUP CO LTD (CN)

International Classes:

C04B24/24; C04B24/32; C08F220/06; C08F220/64; C08G65/332

Foreign References:

CN112708065A	2021-04-27
CN106916291A	2017-07-04
CN111892685A	2020-11-06
CN109306038A	2019-02-05
CN110643003A	2020-01-03
CN110845654A	2020-02-28
CN102153711A	2011-08-17

Other References:

XIA RUIJIE, GUAN XUEMAO, LI HAIYAN, FENG CHUNHUA, FAN SHUHANG, GUO BENKAI, GAO CHAOFENG, SHI LIJIE: "Synthesis research of sustained-release of polycarboxylate superplasticizer", NEW BUILDING MATERIALS, no. 8, 31 December 2016 (2016-12-31), pages 35 - 38, XP055942995, ISSN: 1001-702X

Attorney, Agent or Firm:

WAYNE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)

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