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不同长度侧链的梳状结构聚羧酸盐的合成及
其对新拌水泥浆体性能的影响
作者:向顺成 史才军 吴林妹 种霖霖 
单位:湖南大学土木工程学院 长沙 410082 
关键词:聚羧酸减水剂 合成 表面张力 Zeta 电位 流动性 
分类号:TQ172
出版年,卷(期):页码:2015,43(5):57-578
DOI:10.14062/j.issn.0454-5648.2015.05.04
摘要:

 通过自由基聚合反应合成了3 组主链聚合度基本相同、侧链长度不同的梳状结构聚羧酸盐,对其表面张力和对水泥

浆体流动性的影响进行了测试,并研究了其对硅酸盐水泥及添加不同品种和掺量的辅助性胶凝材料的水泥浆体的液相表面张
力、流动性及Zeta 电位的影响。结果表明:其它实验条件不变、主链聚合度相同的情况下异戊烯醇聚氧乙烯醚(TPEG)与α-
甲基丙烯酸(α-MAA)的摩尔比从1:1 增加到5:1,合成的聚羧酸盐的表面张力从47.70 mN/m 降低至35.53 mN/m,添加到水泥
净浆中时初始流动度从280 mm 增大至310 mm;随着辅助性胶凝材料和聚羧酸减水剂掺量的增加,水泥浆体的液相表面张
力减小、流动性增强;当水胶比从0.5 降到0.3,水泥浆的Zeta 电位呈现上升趋势,浆体稠度变大,Zeta 电位变化更明显;
水胶比为0.3 时,水泥浆体的Zeta 电位值随着辅助性胶凝材料和聚羧酸减水剂掺量的增加呈现下降趋势。
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 Three polycarboxylates with different comb structures (i.e., the same degree of polymerization in main chains and different

side chains) were synthesized via radical polymerization reaction. The effect of polycarboxylates on the surface tension and the
fluidity in cement pastes was determined. The effect of polycarboxylates on the surface tension of liquid, the fluidity, and Zeta
potential of cement pastes with different kinds and contents of mineral admixture were also investigated. The results show that the
surface tension of polycarboxylate decreases from 47.70 mN/m to 35.53 mN/m and the paste fluidity increases from 280 mm to 310
mm with increasing the molar ratio between isoamyl alcohol polyoxyethylene (TPEG) and α-methacrylate (α-MAA) from 1:1 to 5:1.
The liquid surface tension of cement pastes decreases and the paste fluidity increases with increasing the dosage of supplementary
cementitious materials and polycarboxylate. As the water-cement ratio decreases from 0.5 to 0.3, the Zeta potential of cement pastes
increases. When the water-cement ratio is 0.3, the Zeta potential decreases with increasing the dosage of supplementary cementitious
materials and polycarboxylate.
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基金项目:
国家自然科学基金 (51378196, U1305243) 资助项目。
作者简介:
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参考文献:

 [1] ANDERSEN P J. The effect of adsorption of superplasticizers on the

surface of cement [J]. Cem Concr Res, 1987, 17(5): 805–813.
[2] LI C Z, FENG N Q, LI Y D, et al. Effects of polyethylene oxide chains
on the performance of polycarboxylate-type wate-reducers [J]. Cem
Concr Res, 2005, 35(5): 867–873.
[3] MARDANI A M, TUYAN M, YILMAZ G. Effect of different types of
superplasticizer on fresh, rheologicaland strength properties of
self-consolidating concrete [J]. Const Build Mater, 2013, 47:
1020–1025.
[4] NORVELL J K, STEWART J G, JUENGER M C, et al. Influence of
clays and clay-sized particles on concrete performance [J]. J Mater
Civil Eng, 2007, 19(12): 1053–1059.
[5] ATARASHI D. Interaction between superplasticizers and clay minerals
[J]. Jpn Cem Assoc, 2005, 58: 287–392.
[6] ZHANG Y R, KONG X M, LU Z B, et al. Effects of the charge
characteristics of polycarboxylate superplasticizers on the adsorption
and the retardation in cement pastes [J]. Cem Concr Res, 2015, 67:
184–196.
[7] YAMADA K, TAKAHASHI T, HANEHARA S, et al. Effects of the
chemical structure on the properties of polycarboxylate-type
superplasticiz-er [J]. Cem Concr Res, 2000, 30(2): 197–207.
[8] 孔祥明, 刘辉, 蒋凌飞, 等. 含硅烷官能团聚羧酸减水剂对水泥浆
体流动性和力学性能的影响[J]. 硅酸盐学报, 2014, 42(5): 635–641.
KONG Xiangming, LIU Hui, JIANG Lingfei, et al. J Chin Ceram Soc,
2014, 42(5): 635–641.
[9] 江楠, 王智, 王林龙, 等. 硫酸盐对聚羧酸减水剂分散性及吸附量
的影响[J]. 硅酸盐学报, 2013, 41(5): 1521–1525.
JIANG Nan, WANG Zhi, WANG Linlong, et al. J Chin Ceram Soc,
2013, 41(5): 1521–1525.
[10] 马保国, 杨虎, 谭洪波, 等. 水泥和黏土矿物对不同减水剂吸附的
特性 [J]. 硅酸盐学报, 2013, 41(3): 328–333.
MA Baoguo, YANG Hu, TAN Hongbo, et al. J Chin Ceram Soc, 2013,
41(3): 328–333.
[11] WINNEFELD F, BECKER S, PAKUSCH J, et al. Effects of the
molecular architecture of comb-shaped superplasticizers on their
performance in cementitious systems [J]. Cem Concr Compos, 2007,
29(4): 251–262.
[12] 孔祥明, 侯珊珊, 史志花, 等. 功能单体对聚羧酸减水剂性能的影
响[J]. 建筑材料学报, 2014, 17(1): 1–8.
KONG Xiangming, HOU Shanshan, SHI Zhihua, et al. J Build Mater
(in Chinese), 2014, 17(1): 1–8.
[13] 王子明, 卢子臣, 路芳, 等. 梳形结构的侧链密度对聚羧酸系减水
剂性能的影响[J]. 硅酸盐学报, 2012, 40(11): 1570–1575.
WANG Ziming, LU Zichen, LU Fang, et al. J Chin Ceram Soc, 2012,
40(11): 1570–1575.
[14] PLANK J, WINTER C. Competitive adsorption between
superplasticizer and retarder molecules on mineral binder surface [J].
Cem Concr Res, 2008, 38(5): 599–605.
[15] UCHIKAWA H, HANEHARA S, SHIRASAKA T, et al. Effect of
admixture on hydration of cement, adsorptive behavior of admixture
and fluidity and setting of fresh cement paste [J]. Cem Concr Res,
1992, 22(6): 1115–1129.
[16] 史才军, 石振国, 卢都友, 等. 长沙地区湘江砂卵石的碱活性及安
全使用条件[J]. 硅酸盐学报, 2011, 39(1): 13–19.
SHI Caijun, SHI Zhenguo, LU Duyou, et al. J Chin Ceram Soc, 2011,
39(1): 13–19.
[17] LIU M, LEI J H, DU XI D, et al. Synthesis and properties of
methacrylate-based and allylether-based polycarboxylate
superplasticizer in cementitious system [J]. J Sustainable
Cement-based Mater, 2013, 2(3/4): 218–226.
[18] PLANK J, YANG FAN, STORCHEVA O. Study of the interaction
between cement phases and polycarboxylate superplasticizers
possessing silyl functionalities [J]. J Sustainable Cement-based Mater,
2014, 3(2): 77–87.
[19] JANG J G, LEE N K, LEE H K. Fresh and hardened properties of
alkali-activated fly ash/slag pastes with superplasticizers [J]. Const
Build Mater, 2014, 50: 169–176.
[20] BANFILL P F G.. Additivity effects in the rheology of fresh concrete
containing water-reducing admixtures[J]. Const Build Mater, 2011,
25(6): 2955–2960.
[21] ZHANG L, LU Q Y, XU Z H, et al. Effect of polycarboxylate ether
comb-type polymer on viscosity and interfacial properties of kaolinite
clay suspensions [J]. J Colloid Interface Sci, 2012, 378(1): 222–231.
[22] NAVARRO B I, PEREZ N M,FERNANDEZ J M, et al. Assessment of
the interaction of polycarboxylate superplasticizers in hydrated lime
pastes modified with nanosilica or metakaolin as pozzolanic reactives
[J]. Const Build Mater, 2014, 73: 1–12.[23] FLATT R J, HOUSL Y F. A simplifiled view on chemical effects
perturbing the action of superplasticizers [J]. Cem Concr Res, 2011,
(31): 1169–1176.
[24] LI Y W, YANG C L, ZHANG Y F, et al. Study on dispersion,
adsorption and flow retaining behaviors of cement mortars with
TPEG-type polyether kind polycarboxylate superplasticizers [J]. Const
Build Mater, 2014, 64: 324–332.
[25] 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: 187–190.
[26] 钟世云, 李晋梅, 韩冬冬, 等. 掺黏度改性剂与减水剂水泥浆的
Zeta 电位研究[J]. 建筑材料学报, 2012, 15(6): 735–740.
ZHONG Shiyun, LI Jinmei, HAN Dongdong, et al. J Build Mater (in
Chinese), 2012, 15(6): 735–740.
[27] PLANK J, HIRSCH C. Impact of zeta potential of early cement
hydration phases on superplasticizer adsorption [J]. Cem Concr Res,
2007, 37(4): 537–542.
[28] 张永利, 朱佳, 史册, 等. 高岭土的改性及其对Cr (Ⅵ)的吸附特性
[J]. 环境科学研究, 2013, 26(5): 561–568.
ZHANG Yongli, ZHU Jia, SHI Ce, et al. Res Environ Sci (in Chinese),
2013, 26(5): 561–568.
[29] 邢楠. 偏高岭土对水泥及混凝土的影响 [D]. 北京: 北京建筑工程
学院, 2012.
YING Nan. Effect of Metakaolin on Cement and Concrete (in Chinese,
dissertation). Beijing: Beijing University of Civil Engineering and
Architecture, 2012.
[30] ZINGG A, WINNEFELD F, HOLZER L, et al. Adsorption of
polyelectrolytes and its influence on the rheology, zeta potential, and
microstructure of various cement and hydrate phases [J]. J Colloid
Interface Sci, 2008, 323(2): 301–312.
[31] 王子明. “水泥-水-高效减水剂”系统的界面化学现象与流变性能[D].
北京: 中国矿业大学, 2006.
WANG Ziming. The Interafce Chemistry Phenomena and Rheological
Properties of “Cement-Water-Superplasticizer”System (in Chinese,
dissertation). Beijing: China University of Mining and Technology, 2006.
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