纳米Al_2O_3颗粒的分散机理研究进展
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摘要
纳米Al_2O_3浆料容易形成絮凝团聚,使其应用在很大程度上受到限制,故稳定并分散纳米Al_2O_3颗粒显得至关重要。综述纳米Al_2O_3颗粒分散机理的研究进展以及发展现状,详细介绍六偏磷酸钠(SHMP)的静电稳定机制、聚乙二醇(PEG)的空间位阻稳定机制、聚丙烯酸钠(PAAS)的静电和空间位阻共同稳定机制。通过3种不同的分散机制使悬浮液稳定,避免浆料中纳米Al_2O_3颗粒发生团聚。最后对未来纳米Al_2O_3颗粒分散性方面的研究工作进行展望。
Nano-Al_2O_3 particles are easy to agglomerate,which limits its application to a large extent,so it is very important to stabilize and disperse the Al_2O_3 ceramic slurry. This article summarizes the research progress and development status of the dispersion mechanism of nano Al_2O_3 particles. Electrostatic stabilization of SHMP,steric stabilization of PEG,electrostatic and steric stabilization of PAAS are introduced in detail. The suspension can be stabilized by three different dispersion mechanisms,and the aggregation of nano Al_2O_3 particles in the slurry is avoided. Finally,the future research work on the dispersion of nanoAl_2O_3 particles is prospected.
Nano-Al_2O_3 particles are easy to agglomerate,which limits its application to a large extent,so it is very important to stabilize and disperse the Al_2O_3 ceramic slurry. This article summarizes the research progress and development status of the dispersion mechanism of nano Al_2O_3 particles. Electrostatic stabilization of SHMP,steric stabilization of PEG,electrostatic and steric stabilization of PAAS are introduced in detail. The suspension can be stabilized by three different dispersion mechanisms,and the aggregation of nano Al_2O_3 particles in the slurry is avoided. Finally,the future research work on the dispersion of nanoAl_2O_3 particles is prospected.
引文
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[2]宋晓岚,邱冠周,吴雪兰,等.特种氧化铝生产研究开发现状及其展望[J].材料导报,2004,18(4):12-15.
[3]GLEITER H.Nanocrystalline material[J].Progress in Material Science,1989(4):223.
[4]尹衍升,张德景.氧化铝陶瓷及其复合材料[M].北京:化学工业出版社,2001:10-28.
[5]ZHENG J M,CARLSON W B,REED J S.The packing density of binary powder mixtures[J].Journal of the European Ceramic Society,1995,15(5):479-483.
[6]雷鸣,张礼杰,王英伟,等.透明陶瓷的研究现状与发展[J].中国陶瓷工业,2005,5(3):45-48.
[7]张少明,胡双启,赵海霞.纳米Al2O3粉末团聚机理与防止方法研究进展[J].兵器材料科学与工程,2008,31(6):94-96.
[8]戚红艳,王文忠.陶瓷粉体分散的稳定机制及Sialon粉体分散的研究[J].本溪冶金高等专科学校学报,2002(12):11-14.
[9]张占新,胡鸿奎,薄惠丰.不同分散剂对氧化铝陶瓷基片加工工艺的影响[J].热加工工艺,2003,8(42):34-37.
[10]TOMASIK P,SCHILLING C H,JANKOWIAK R,et al.The role of organic dispersants in aqueous alumina suspensions[J].Journal of the European Ceramic Society,2003,23(5):913-919.
[11]JOSEPH C,ILHAN A A,ALAN B.Stability of aqueousα-Al2O3suspensions with poly(methacrylic acid)polyelectrolyte[J].J Am Ceram Soc,1988,71(4):250-252.
[12]琚晨辉,王燕明,时建东,等.颗粒粒度分布对高固相含量氧化铝浆料流变性能的影响[J].硅酸盐学报,2006,34(8):985-986.
[13]MORENO R.The role of slip additive in tape-casting technology.PartⅠ:Solvents and dispersants[J].American Ceramic Society Bulletin,1992,71(10):1521-1531.
[14]MORENO R.The role of slip additive in tape-casting technology.PartⅡ:Binders and plasticizers[J].American Ceramic Society Bulletin,1992,71(11):1647-1657.
[15]王果庭.胶体稳定性[M].北京:科学出版社,1990:50-76.
[16]夏启斌,李忠.六偏磷酸钠对蛇纹石的分散机理研究[J].矿冶工程,2002,22(2):51-56.
[17]陈启元,王建立,李旺兴,等.分散剂对氧化铝悬浮液分散稳定性的影响[J].中国粉体技术,2008,14(6):33-36.
[18]侯耀永.高分散高稳定α-Al2O3和纳米Si C单相及混合水悬浮液的制备[J].硅酸盐学报,1998(4):171-177.
[19]ZHANG N,WANG L Y,LIU H,et al.Nitric acid oxidation on carbon dispersion and suspension stability[J].Surface and Interface Analysis,2008,40(8):1190-1194.
[20]宋贤良,陈玲,叶建东,等.不同颗粒尺寸α-Al2O3粉体制备稳定浆料的研究[J].硅酸盐学报,2003,31(7):703-706.
[21]李登好,郭露村.超细氧化铝水悬浮液分散稳定性研究[J].硅酸盐学报,2005(1):36-35.
[22]TADROS T.Steric stabilisation and flocculation by polymers[J].Polymer Journal,1991,23(5):683-696.
[23]NAPPER D H,NETSCHEY A.Studies of the steric stabilization of colloidal particles[J].Journal of Colloid and Interface Science,1971,37(3):528-535.
[24]高濂,孙静,刘阳桥.纳米粉体的分散及表面改性[M].北京:化学工业出版,2003:149.
[25]杨静漪,李理,蔺玉胜,等.纳米Zr O水悬浮液稳定性的研究[J].无机材料学报,1997,12(5):664-670.
[26]GAO Lian,SUN Jing,LIU Yangqiao.Dispersion and surface modification of nano-powder[M].Beijing:Chemistry Industry Press,2003:12.
[27]郭小龙,陈沙鸥,戚凭,等.纳米陶瓷粉末分散的微观过程和机理[J].青岛大学学报,2002,15(1):79-85.
[28]孙跃军,荀冬雪,赵越超.聚乙二醇对氧化铝前驱体分散性的影响[J].兵器材料科学与工程,2016,39(4):43-47.
[29]LANG F F.Powder processing science and technologe for increased reliability[J].Journal of the American Ceramic Society,1989,72(1):3-15.
[30]吉晓莉,郭兵健,李美娟,等.p H值对包覆改性Si C浆料分散特性和流变性的影响[J].硅酸盐学报,2004(2):114-117.
[31]乐红志,彭达岩,文红杰.陶瓷料浆体系的稳定与分散[J].现代技术陶瓷,2004,14(3):42-45.
[32]何雪峰.分散剂对氧化铝悬浮液分散稳定性的影响[J].轻金属,2012,5(5):20-30.
[33]王瑞刚,吴厚政,陈玉如,等.陶瓷料浆稳定分散进展[J].陶瓷学报,1999,20(1):35-40.
[34]胡倩,赵建伟,田东,等.两种分散剂对粉浆浇注氧化铝坯体的影响[J].科技创新导报,2014,22(18):193-194.
[35]周跃华,杨占红.氧化铝悬浮液稳定性的研究[J].上海有色金属,2007,28(3):115-119.