蔗糖对PAA-H_2O-Al_2O_3浆料流变性能的影响  

Effect of Sucrose on Rheology of Aqueous Alumina Suspensions with Polyacrylate

作　　者：高磊[1] 李瑞锋[1] 陈涵[1] 郭露村[1] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009

出　　处：《陶瓷学报》2011年第4期581-586,共6页Journal of Ceramics

基　　金：江苏省科技支撑计划(编号:BE2009169)

摘　　要：研究了蔗糖(sucrose)对聚丙烯酸(PAA)-水基Al2O3悬浮液流变性能的影响。实验表明:在酸性与碱性条件下,蔗糖的添加都有助于提高PAA稳定的水基Al2O3悬浮液流变性。pH为9.0时,PAA-H2O-Al2O3悬浮液粘度随着蔗糖含量的增加逐渐降低,当含量大于4wt%时其粘度趋于不变。其中蔗糖对低含量PAA(0.3wt%)稳定的浆料流变性提高尤为明显。对于固含量为25～40vol%的PAA-H2O-Al2O3悬浮液,4wt%的蔗糖的加入都能提高其稳定性,当固含量为40vol%时,效果最为明显。此外,蔗糖的添加能够较好的提高PAA-HO-AlO悬浮液的抗电解质性能。Effect of sucrose on the rheology of aqueous alumina suspensions with polyacrylate（PAA） was investigated.The results showed that sucrose could improve the stability of alumina suspensions with PAA in acid and alkaline conditions.At pH 9.0,the viscosity of PAA-H2O-Al2O3 suspension decreased with the increasing of the sucrose content,and did not vary appreciably when the content of sucrose exceeding 4wt%.Sucrose could obviously raise the rheology of slurry with low addition of PAA（0.3wt %）.Sucrose could enhance the stability of alumina suspensions with 25-40vol%,especially 40vol%,solid loadings.Besides,adding sucrose could improve the anti-electrolyte properties of PAA-H2O-Al2O3 suspensions.

关 键 词：蔗糖 聚丙烯酸 悬浮液 流变性 

分 类 号：TQ174.75[化学工程—陶瓷工业]