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Effect of the Side Chain Length of Comb-Like Copol…
Author:RANQianping1 2 LIUJiaping1 2 MIAOChangwen1 2 SHANGYan2 MAOYonglin2(1.Jiangs… Nanjing210008 2.JiangsuBoteNewMate… Nanjing 210008 China) 
Unit: 
Keyword:comb-like copolymer side chain length adsorption heat of hydration 
Classification:TU528
Year,volume(Issue):page number:2010,38(9):1718-1722
Summary:

The efficiency of a comb-like copolymer superplasticizers can be determined in a great extent based on the side chain length.Recent work has paid more attentions on the effect of the side chain length on the adsorption and dispersion behavior.The side chain length can affect the early behavior,especially early hydration of cement suspensions.In this work,the adsorption characteristics and hydration behavior of concentrated cement suspensions were investigated by means of a total organic carbon analyzer,differential scanning calorimetry-Thermogravimeter and calorimetric device and environmental scanning electron microscope.The results show that the comb-like copolymer with a long side chain can accelerate the hydration rate,and change its crystalline morphology of hydrated products.

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Foundation item:
江苏省自然科学基金(BK2008507,BK2007722);; 重大基础研究“973”计划(2009CB623205)资助项目
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References:

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