含磷酸基团的酯型聚羧酸减水剂的合成及性能评价
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摘要
本文以聚丙烯酸、甲氧基聚醚和自制磷酸单体P为原料,通过两步连续酯化方法,制得磷酸化改性的酯型减水剂,利用高效凝胶色谱和红外光谱对其进行了表征。通过净浆、砂浆和混凝土试验,考察了磷酸化改性前后的减水剂性能,改性后的减水剂在保坍和抗黏土性能方面具有一定的优势。
引文
[1]王子明.聚羧酸系高性能减水剂—制备、性能与应用[M].北京:中国建筑工业出版社,2009.
[2]田培,刘加平,王玲等.混凝土外加剂手册[M].北京:化学工业出版社,2009.
[3]陈国新,祝烨然,沈燕平等.抗泥型聚羧酸系减水剂的合成及性能研究[J],混凝土,2014,(4):87-89.
[4]L.Lei,J.Plank.A concept for a polycarboxylatesuperplasticizer possessing enhanced clay tolerance[J].Cem.Concr.Res.,2012,42:1299-1306.
[5]杨俊,舒豆豆,何年.一种聚羧酸抗含泥减水剂及其制备方法[P].CN 103508696 B.
[6]朱建民,刘兆滨,董振鹏,周立明,马铁岩.一种聚氧烷基醚、其制备方法和应用、及由该醚制得的聚羧酸减水剂[P].CN 104744682 A.
[7]J.Plank,E.Sakai,C.W.Miao,C.Yu,J.X.Hong.Chemical admixtures-Chemistry,applications and their impact onconcrete microstructure and durability[J].Cem.Concr.Res.,2015,78:81-99.
[8]A.Lange,T.Hirata,J.Plank.Influence of the HLB value of polycarboxylatesuperplasticizerson the flow behavior of mortar and concrete[J].Cem.Conc.Res.,2014,60,45-50.
[9]F.Dalas,A.Nonat,S.Pourchet,M.Mosquet,D.Rinaldi,S.Sabio.Tailoring the anionicfunction and the side chains of comb-like superplasticizers to improve their adsorption[J].Cem.Concr.Res.,2015,67:21-30.
[10]F.Dalas,S.Pourchet,A.Nonat,D.Rinaldi,S.Sabio,M.Mosquet.Fluidizing efficiency of comb-like superplasticizers:The effect of the anionic function,the side chain length and the grafting degree[J].Cem.Concr.Res.,2015,71:115-123.
[11]于连林,蔡庆杰,范雷等.含有磷酸官能团的聚羧酸减水剂的研究[Z].中国建材联合会混凝土外加剂分会第十三次会员代表大会,中国广东江门,2012.
[2]田培,刘加平,王玲等.混凝土外加剂手册[M].北京:化学工业出版社,2009.
[3]陈国新,祝烨然,沈燕平等.抗泥型聚羧酸系减水剂的合成及性能研究[J],混凝土,2014,(4):87-89.
[4]L.Lei,J.Plank.A concept for a polycarboxylatesuperplasticizer possessing enhanced clay tolerance[J].Cem.Concr.Res.,2012,42:1299-1306.
[5]杨俊,舒豆豆,何年.一种聚羧酸抗含泥减水剂及其制备方法[P].CN 103508696 B.
[6]朱建民,刘兆滨,董振鹏,周立明,马铁岩.一种聚氧烷基醚、其制备方法和应用、及由该醚制得的聚羧酸减水剂[P].CN 104744682 A.
[7]J.Plank,E.Sakai,C.W.Miao,C.Yu,J.X.Hong.Chemical admixtures-Chemistry,applications and their impact onconcrete microstructure and durability[J].Cem.Concr.Res.,2015,78:81-99.
[8]A.Lange,T.Hirata,J.Plank.Influence of the HLB value of polycarboxylatesuperplasticizerson the flow behavior of mortar and concrete[J].Cem.Conc.Res.,2014,60,45-50.
[9]F.Dalas,A.Nonat,S.Pourchet,M.Mosquet,D.Rinaldi,S.Sabio.Tailoring the anionicfunction and the side chains of comb-like superplasticizers to improve their adsorption[J].Cem.Concr.Res.,2015,67:21-30.
[10]F.Dalas,S.Pourchet,A.Nonat,D.Rinaldi,S.Sabio,M.Mosquet.Fluidizing efficiency of comb-like superplasticizers:The effect of the anionic function,the side chain length and the grafting degree[J].Cem.Concr.Res.,2015,71:115-123.
[11]于连林,蔡庆杰,范雷等.含有磷酸官能团的聚羧酸减水剂的研究[Z].中国建材联合会混凝土外加剂分会第十三次会员代表大会,中国广东江门,2012.