日用化学工业2011，Vol.41Issue(2)：101-103,135,4.
羧酸共聚物表面活性剂的合成及其对水泥浆流动性影响
Synthesis of carboxylic acid copolymer surfactant and its effect on fluidity of concrete slurry
靳林 1李善吉2
作者信息
- 1. 临沧师范高等专科学校数理系,云南临沧,677000
- 2. 嘉应学院化学与环境学院,广东梅州,514015
- 折叠
摘要
Abstract
A series of macromolecular monomer with different carbon chain length, monomethoxyl polyethylene glycol maleic acid mono ester was synthesized with monomethoxyl polyethylene glycol (MPEG) of different carbon chain length and maleic anhydride (MA) as starting materials.The optimal reaction conditions were determined by experiment work as: n (MPEG): n ( MA ) = 1: 1.2, reaction temperature 100 ℃, reaction time 3 h.Free radical copolymerization was carried out by the above -mentioned macromolecular monomer, acrylic acid,hydroxy ethyl methacrylic acid and sodium vinyl sulfonate as starting materials and with potassium persulfate (KPS) as initiating agent.The copolymerization product is used as water reducing agent for concrete slurry and its water reducing performance was examined.The results showed that when the molecular weight of MPEG is 1 000, the dosage of initiator is 2.5％ (w) of the macromolecular monomer, fluidity of concrete slurry achieves the highest value and it indicated that under these conditions, the copolymerization product displays the best performance as a water reducing agent for concrete slurry.关键词
表面活性剂/羧酸共聚物/聚乙二醇单甲醚/合成Key words
surfactant/ carboxylic acid copolymer/ monomethoxyl polyethylene glycol/ synthesis分类
化学工程引用本文复制引用
靳林,李善吉..羧酸共聚物表面活性剂的合成及其对水泥浆流动性影响[J].日用化学工业,2011,41(2):101-103,135,4.
