Preparation and Properties of Highly Adaptive Polycarboxylate Superplasticizer

LAI Hua-zhen

doi:10.14028/j.cnki.1003-3726.2022.12.012

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Preparation and Properties of Highly Adaptive Polycarboxylate Superplasticizer

更新时间：2022-10-17

- Preparation and Properties of Highly Adaptive Polycarboxylate Superplasticizer
- Polymer Bulletin Vol. 35, Issue 12, Pages: 107-112(2022)
- 作者机构：
  
  科之杰新材料集团有限公司，厦门　361101
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2022.12.012
  CLC：
- Published：20 December 2022，
  
  Received：11 October 2021，
  
  Revised：09 November 2021，
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LAI Hua-zhen. Preparation and Properties of Highly Adaptive Polycarboxylate Superplasticizer. [J]. Polymer Bulletin 35(12):107-112(2022)
DOI：

LAI Hua-zhen. Preparation and Properties of Highly Adaptive Polycarboxylate Superplasticizer. [J]. Polymer Bulletin 35(12):107-112(2022) DOI： 10.14028/j.cnki.1003-3726.2022.12.012.

摘要

采用二乙二醇与马来酸酐的酯化制备微交联助剂

再与不饱和聚醚大单体及不饱和酸共聚制得高适应性聚羧酸减水剂

并研究聚醚单体种类、酸醚比和微交联助剂用量对聚羧酸减水剂性能的影响。当酸醚比为3.9

氧化剂、还原剂、链转移剂、微交联助剂用量分别为单体总质量的1.8%、0.2%、0.6%、6%时

制备的聚羧酸减水剂能有效改善混凝土原材料品种复杂、砂石含泥量多等因素导致的适应性问题

对含泥量高的砂石骨料耐受性好。

Abstract

The esterification of diethylene glycol and maleic anhydride is used to prepare the micro-crosslinking assistant

and then copolymerized with unsaturated polyether macromonomer and unsaturated acid to prepare a highly adaptable polycarboxylate superplasticizer. The effects of the polyether monomer type

the ratio of acid-ether and the amount of micro-crosslinking auxiliary agent on the performance of polycarboxylate superplasticizer were experimentally studied.The results show that when the acid-to-ether ratio is 3.6 and the amounts of oxidant

reducing agent

chain transfer agent

and micro-crosslinking aid are 1.8%

0.2%

0.6%

and 6%

respectively

of the total monomer mass

the polycarboxylate superplasticizer prepared can effectively improve the adaptability problems caused by the complexity of concrete raw materials and the high mud content of sand and gravel

and it has good tolerance to sand and gravel aggregates with high mud content.

关键词

适应性聚羧酸减水剂微交联性能

Keywords

AdaptabilityPolycarboxylate superplasticizerMicro-cross-linkingPerformance

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