起始溶液pH值对聚羧酸减水剂分散性和分散保持性

关键字：起始,溶液值,聚羧酸,减水剂,分散性

（科之杰新材料集团有限公司，福建　厦门  361100）

    摘要：在双氧水-吊白块氧化还原引发体系中，研究起始溶液pH值对VPEG-PCEs、TPEG-PCEs及HPEG-PCEs聚羧酸减水剂分散性的影响。结果表明，不同类型的聚羧酸减水剂达到最佳分散性和分散保持性所需起始溶液的pH值不同，研究对不同的氧化还原引发体系在不同体系中的有效应用具有指导意义。
    关键词：VPEG-PCEs；TPEG-PCEs；HPEG-PCEs；双氧水-吊白块氧化还原引发体系
    中图分类号：TU528.042.2        文献标识码：A        文章编号：1001-702X（2017）10-0124-04

Effects of initial solution pH on the dispersity and retentivity of polycarboxylate superplasticizer
ZHONG Lina，FANG Yunhui，JANG Zhuojun，CHEN Xiaolu，DAI Zhuduan，GUAN Mengqin
（KZJ New Materials Group Co.　Ltd.，Xiamen 361100，China）

    Abstract：The effects of initial solution pH on the performance of VPEG-PCEs，TPEG-PCEs，and HPEG-PCEs were studied respectively in the hydrogen peroxide-sodium formaldehyde sulfoxylate redox initiation system. The experimental results showed that the pH of the initial solution were different for different types of PCEs to achieve the best performance. The study of this paper has directive sense for the application of different redox initiation systems in different systems.
    Key words：VPEG-PCEs，TPEG-PCEs，HPEG-PCEs，Hydrogen peroxide-sodium formaldehyde sulfoxylate redox initiation system