纸浆废液接枝共聚萘系高效减水剂的研究  

Study on Poly Wood-naphthalene Superplasticizer Prepared by Waste Paper Pulp and Naphthalene Superplasticizer

作　　者：刘艳玲[1] 高建明[1] 邓璇[1] 汪廷秀[1] 陈虾敏[1] 陈国忠 

机构地区：[1]东南大学材料学院江苏省土木工程材料重点实验室,南京211189 [2]江苏特密斯混凝土外加剂有限公司,镇江212141

出　　处：《混凝土与水泥制品》2010年第4期17-19,共3页China Concrete and Cement Products

基　　金：江苏省科技成果转化专项资金项目(BA2008090)

摘　　要：针对节能减排、绿色环保的时代要求,研究了纸浆废液接枝共聚萘系减水剂制备木聚萘系减水剂的可行性。通过调整木质素减水剂和萘系减水剂的质量比,优化接枝共聚时间和温度,成功实现了两种减水剂的接枝共聚。红外光谱分析表明,形成的木聚萘系减水剂是一种新型物质,其性能优于萘系减水剂。试验表明,木聚萘系减水剂具备高减水、高保坍的性能,克服了萘系减水剂坍落度损失过快的缺点。In view of requirments of the energy conservation and environmental protection,the feasibility of poly wood-naphthalene superplasticizer is studied,which is prepared by waste paper pulp and naphthalene superplasticizer.By adjusting the waste paper pulp and naphthalene superplasticizer＇s mass ratio,optimizing the graft-copolymerization time and temperature,the graft-copolymerization of the two intermediates is realized successfully.Infrared spectroscopy show that the poly wood-naphthalene superplasticizer is a new mate-rial,and its performance is better than naphthalene superplasticizer.Tests show that poly wood-naphthalene superplasticizer is a kind of superplasticizer with high water reducing and high slump retaining ability,which overcomes the disadvantage of excessive slump loss of naphthalene superplasticizer.

关 键 词：纸浆废液 萘系高效减水剂 木聚萘系高效减水剂 接枝 流动度 

分 类 号：TU528[建筑科学—建筑技术科学]