1) polycarboxylate based superplasticizer
聚羧酸系减水剂
1.
How to safely and efficiently apply polycarboxylate based superplasticizer;
如何安全高效地应用聚羧酸系减水剂
2.
Investigation on relative performance of cement based self-leveling mortar added with polycarboxylate based superplasticizer;
聚羧酸系减水剂用于水泥基自流平砂浆相关问题的研究
3.
The influences of the amount of superplasticizer,the molecular weight of MPEG and the amount of initiator were also investigated on the copolymerization for polycarboxylate based superplasticizer by MPEGMA,maleic anhydride,MMA and 2-acryloylamino-2-methyl-1-propanesulfonic acid.
采用先酯化后共聚的方法合成聚羧酸系减水剂,考察以甲基丙烯酸(MMA)和甲氧基聚乙二醇(MPEG)为原料酯化合成大单体甲氧基聚乙二醇甲基丙烯酸酯(MPEGMA)过程中阻聚剂对苯二酚用量、酸醇摩尔比、反应温度等对酯化率的影响。
2) polycarboxylic acid type water-reducer
聚羧酸系减水剂
1.
The effects of polynaphthaene sulphonate type water-reducer ( PSWR) and polycarboxylic acid type water-reducer(PAWR) on pore structure, internal flaws and resistance to environmental action of concrete were investigated.
就传统萘系减水剂(polynaphthaene sulphonate type water-reducer,PSWR)和新型聚羧酸系减水剂(polycarboxylic acid type water-reducer,PAWR)对混凝土内部孔结构、内部缺陷及抵抗外部环境作用力的影响等进行了较全面的对比分析研究,揭示了PAWR对提高混凝土耐久性的作用。
2.
Four comb-like polycarboxylic acid type water-reducers, four types of cements, three soluble sulphates and two kinds of ultrafine mineral powders were used to examine the compatibility of cements with water-reducers.
选用4种梳形聚羧酸系减水剂、4种水泥、3种可溶性硫酸盐、2种矿物超细粉等原材料,通过测试掺减水剂水泥浆体的Zeta电位、净浆流动度损失以及混凝土性能等,说明聚羧酸系减水剂结构与性能、水泥组成与性能、电解质多价阳离子及矿物超细粉掺量等对聚羧酸系减水剂与水泥之间的相容性有重要影响。
3.
The basic raw materials and synthesis method for polycarboxylic acid type water-reducer are introduced, the working mechanism, the changes of molecular structure and property are also discussed.
介绍了聚羧酸系减水剂的基本原材料、种类与合成方法,讨论了该减水剂的作用机理、分子结构与性能变化等,提出了减水剂的分子结构模型,证明了以两性型-非离子型混合分子结构为特征的羧酸共聚物其性能最好,此结论可用于聚羧酸系减水剂高性能化的设计。
3) polycarboxylate superplasticizer
聚羧酸系减水剂
1.
Synthesis and application properties of polycarboxylate superplasticizers
聚羧酸系减水剂的合成及应用性能
2.
In this paper,allylic polycarboxylate superplasticizer was directly polymerized using acrylic polyoxyethylene glycols(APEG),maleic anhydride and methyl acrylate as monomers and ammonium persulfate as initiator.
本文设计采用一步聚合法,将烯丙基聚乙二醇(APEG)、马来酸酐和丙烯酸甲酯通过引发剂的作用,合成一种聚羧酸系减水剂。
3.
Study was carried out on effects of inhibitor type and amount, molar ratio of AA to MPEG, solvent amount, esterification temperature and reaction time on esterification ratio and performance of polycarboxylate superplasticizer.
聚羧酸系减水剂具有高减水率、低坍落度损失、对环境友好等优点,是配制高性能混凝土和重要基础设施工程的理想外加剂,发展潜力巨大。
4) polycarboxylic series of water reducer
聚羧酸系减水剂
1.
By way of orthogonal testing analysis,study was carried out on effects of molar ratio of unsaturated monomers with carboxylic groups,sulphonic groups,polyoxyethylene side chain groups and mean degree of polymerization of polyoxyethylene side chain groups on performance of polycarboxylic series of water reducer.
采用正交试验分析法 ,研究了带活性基团羧基、磺酸基、聚氧化乙烯链基等不饱和单体的摩尔比及聚氧化乙烯链的聚合度等对聚羧酸系减水剂性能的影响 ,提出一种合成聚羧酸系高性能减水剂的最佳配方。
补充资料：高效减水剂
分子式：
CAS号：
性质： 一般可分为萘磺酸-甲醛缩合物(简称萘系减水剂)和磺化三聚氰胺甲醛缩合物。它们分别由工业萘、三聚氰胺，经一定的酸、碱性条件下缩聚而成。其性质属表面活性剂类；具有吸附、分散湿润、润滑等作用。使用于混凝土中能大量减少混凝土拌合用水，减水率均在15％以上，故统称高效减水剂。萘系减水剂为褐色粉状固体。三聚氰胺为无色油状液体。均能很好溶于水中，使用最普遍的是萘系减水剂。
CAS号：
性质： 一般可分为萘磺酸-甲醛缩合物(简称萘系减水剂)和磺化三聚氰胺甲醛缩合物。它们分别由工业萘、三聚氰胺，经一定的酸、碱性条件下缩聚而成。其性质属表面活性剂类；具有吸附、分散湿润、润滑等作用。使用于混凝土中能大量减少混凝土拌合用水，减水率均在15％以上，故统称高效减水剂。萘系减水剂为褐色粉状固体。三聚氰胺为无色油状液体。均能很好溶于水中，使用最普遍的是萘系减水剂。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条