Preparation of sodium lignosulphonate-co-polycarboxylic acid water reducing agent - Details

author：

Zhang, Y.-Q. (Zhang, Y.-Q..) ^[1] | Liu, Z.-P. (Liu, Z.-P..) ^[2] | Liu, M.-H. (Liu, M.-H..) ^[3]

Indexed by：

Scopus

Abstract：

The　sodium　lignosulphonate-co-polycarboxylic　acid　water　reducer　was　prepared　by　graft　copolymerization　of　polycarboxylic　acid　monomer　with　raw　material　of　sodium　lignosulphonate　in　aqueous　solutions.　The　processe　was　optimized,　and　the　optimal　conditions　included　16%　of　sodium　lignosulphonate　dosage,　0.9:1.0　of　the　molar　ratio　of　PEG-1000　and　MA,　2.8:1.0　of　molar　ratio　of　AA　and　MA,　3　h　of　polymerization　time,　4　h　of　esterification　time.　Under　the　above　optimum　conditions,　the　obtained　product　is　241　mm　of　the　fluidity　of　cement　paste　when　the　dosage　was　0.2%　and　the　water　cement　ratio　was　0.29.　FT-IR　spectra　illustrated　that　functional　groups　including　polyoxyethylene　group,　ester　group,　carboxylic　group,　acylamino　etc　have　been　grafted　to　sodium　lignosulphonate　successfully.

Keyword：

Polycarboxylic acid monomer; Sodium lignosulphonate; The fluidity of cement paste; Water reducing agent

Community：

[ 1 ] [Zhang, Y.-Q.]College of Environment and Resources, Fuzhou University, Fuzhou Fujian 350108, China
[ 2 ] [Zhang, Y.-Q.]Fujian Provincial Technology Exploitation Base of Biomass Resources, Fuzhou Fujian 350108, China
[ 3 ] [Liu, Z.-P.]College of Environment and Resources, Fuzhou University, Fuzhou Fujian 350108, China
[ 4 ] [Liu, Z.-P.]Fujian Provincial Technology Exploitation Base of Biomass Resources, Fuzhou Fujian 350108, China
[ 5 ] [Liu, M.-H.]College of Environment and Resources, Fuzhou University, Fuzhou Fujian 350108, China
[ 6 ] [Liu, M.-H.]Fujian Provincial Technology Exploitation Base of Biomass Resources, Fuzhou Fujian 350108, China

Reprint 's Address：

刘明华
[Liu, M.-H.]College of Environment and Resources, Fuzhou University, Fuzhou Fujian 350108, China

Email：

mhliu2000@fzu.edu.cn

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Source ：

Journal of Petrochemical Universities

ISSN： 1006-396X

Year： 2012

Issue： 3

Volume： 25

Page： 1-5

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 2

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 2

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