文章摘要
何廷树,杨仁和,徐一伦,李同新,房佳斌.掺加改性淀粉制备聚羧酸减水剂及其应用[J].材料导报,2018,32(4):646-649
掺加改性淀粉制备聚羧酸减水剂及其应用
Synthesis and Application of Polycarboxylate Superplasticizer with Modified Starch
  
DOI:10.11896/j.issn.1005-023X.2018.04.028
中文关键词: 聚羧酸减水剂 羧甲基淀粉醚 异戊烯基聚氧乙烯醚 替代量 混凝土
英文关键词: polycarboxylate superplasticizer, carboxymethyl starch ether, isopentenyl polyoxyethylene ether, substitution amount, concrete
基金项目:基金项目:陕西省工业攻关项目(2016GY-205)
作者单位E-mail
何廷树 西安建筑科技大学材料与矿资学院,西安 710055 hetingshu@xauat.edu.cn 
杨仁和 西安建筑科技大学材料与矿资学院,西安 710055  
徐一伦 陕西友邦新材料科技有限公司,西安 712046  
李同新 陕西友邦新材料科技有限公司,西安 712046  
房佳斌 西安建筑科技大学材料与矿资学院,西安 710055  
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中文摘要:
      选取经过降解处理的羧甲基淀粉醚(CMS-Na)代替部分异戊烯基聚氧乙烯醚(TPEG)制备一种新型聚羧酸系减水剂(PC2),利用水泥净浆单组分试验得出CMS-Na对TPEG的最佳替代量为15%。另外,用红外光谱(FTIR)对CMS-Na及聚羧酸减水剂的分子结构进行了表征。结果表明,掺加CMS-Na合成的PC2不仅降低了原材料的成本,而且具有良好的分散性和保塑性,同时不影响混凝土强度。
英文摘要:
      A new type of polycarboxylate superplasticizer (PC2) was synthesized by using the carboxymethyl starch ether (CMS-Na) to replace part of isopentenyl polyoxyethylene ether (TPEG). The best substitute of CMS-Na for TPEG was obtained by single component test of cement paste, which was 15%. In addition, the molecular structure of CMS-Na and polycarboxylate superplasticizer was characterized by infrared spectroscopy (FTIR).The results showed that PC2 not only reduced the cost of raw mate-rials, but also had excellent dispersion and plastic preservation abilities, while do no harm to the compressive strength of concrete.
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