Effect of polymer on morphology and structure of calcium silicate hydrate prepared via precipitation method

Linnu Lü; Bing Ping; Yongjia He; Liu He; Xi Wu; Shuguang Hu

doi:10.1007/s11595-014-0948-x

Journal of Wuhan University of Technology Materials Science Edition ›› 2014, Vol. 29 ›› Issue (3) : 504 -506. DOI: 10.1007/s11595-014-0948-x

Article

Effect of polymer on morphology and structure of calcium silicate hydrate prepared via precipitation method

Linnu Lü ¹^,²
, Bing Ping ¹^,²
, Yongjia He ²^,³^,^{^c}
, Liu He ⁴
, Xi Wu ²^,³
, Shuguang Hu ²^,³

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Abstract

The effects of polyacrylamide (PAM) and polyvinyl alcohol (PVA) on morphology and structure of calcium silicate hydrate with C/S 1.0–1.7 prepared via precipitation in solution were investigated by XRD, FT-IR and TEM techniques. The results show that incorporation of the polymers decreased the order degree, increased the interlayer spacing and disturbed the layered stacking of C-S-H. Interlayer spacing expansion depended on C/S ratios and type of polymer. Interlayer spacing expansion had a minimum at C/S 1.0 and a maximum at C/S 1.3 and 1.5. Interlayer spacing expansion of PAM was bigger than that of PVA with the same C/S. C-S-H added with PVA mainly exhibited foil-like and fibrillar morphology. The fibrils were of variable length from a few tens of nanometers to a few hundreds of nanometers. Fibrils or foils seemed to be longer in the presence of PVA.

Keywords

C-S-H / morphology / structure / polyacrylamide / polyvinyl alcohol

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Linnu Lü, Bing Ping, Yongjia He, Liu He, Xi Wu, Shuguang Hu. Effect of polymer on morphology and structure of calcium silicate hydrate prepared via precipitation method. Journal of Wuhan University of Technology Materials Science Edition, 2014, 29(3): 504-506 DOI:10.1007/s11595-014-0948-x

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[1]	He Y J, Lu L N, Shang Z F, . Effect of Polyvinyl Alcohol on Nanostructure of Calcium Silicate Hydrate Prepared via Precipitation Method [J]. J. Chin. Ceram. Soc., 2013, 41(2): 218-223.

[2]	He Y J, Shang Z F, Lu L N, . Effect of Water Soluble PVA on the Microstructure Characteristics of C-S-H Formed in Na₂SiO₃-Ca(NO₃)₂ Solution System [J]. J. Wuhan Univ. of Tech-Mater.Sci.Ed., 2011, 26(3): 552-555.

[3]	Matsuyama H, Young J F Synthesis of Calcium Silicate Hydrate/polymer Complexes: Part I. Anionic and Nonionic Polymers [J]. J. Mater. Res., 1999, 14(8): 3 379-3 388.

[4]	He Y J, Lu L N, Struble L J, . Effect of Calcium-Silicon Ratio on Microstructure and Nanostructure of Calcium Silicate Hydrate Synthesized by Reaction of Fumed Silica and Calcium Oxide at Room Temperature [J]. Mater. Struct., 2014, 47(1–2): 311-322.

[5]	Beaudoin J J, Raki L, Alizadeh R A 29Si MAS NMR Study of Modi-fied C-S-H Nanostructures[J]. Cem. Concr. Compos., 2009, 31(8): 585-590.

[6]	Yu P, Kirpatrick R J, Poe B, . Structure of Calcium Silicate Hydrate (C-S-H): Near-, Mid-, and far-Infrared Spectroscopy [J]. J. Am. Ceram. Soc., 1999, 82(3): 742-748.