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改性甲基丙烯酸共聚物分散剂对陶瓷复合料浆流变性及坯体强度的影响

, PP. 96-100

Keywords: 高分子分散剂,陶瓷复合料浆,流变性,强度

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Abstract:

烯丙基聚氧乙烯醚与甲基丙烯酸和甲基丙烯酸甲酯可通过自由基共聚获得两亲结构的水溶性高分子MPMA,可作为陶瓷浆料分散剂。研究了MPMA用量对石英/长石/粘土复合浆料流变性及坯体强度的影响,并分析了其原因及分散稳定作用机理。结果表明:MPMA的加入显著优化了料浆的流变性能并提高了成型后陶瓷的强度。在pH值为9~10时,MPMA的最佳用量为0.57wt%(相对绝干浆料),料浆的Zeta电位绝对值由28.5mV升高到65.5mV,零剪切黏度由690.9mPa·s降低到81.6mPa·s,触变面积最小,陶瓷料浆基本呈Newton流动特性,显示了很好的分散性。与添加无机分散剂的陶瓷坯体相比,添加MPMA的陶瓷坯体强度由160MPa升高到268MPa。

References

[1]  芦令超, 申玉芳, 常 钧, 等. Al2O3/ NiAl 复相陶瓷料浆流变性的研究[J] . 复合材料学报, 2004 , 21 (2) : 40 - 44.Lu Lingchao , Shen Yufang , Chang J un , et al . Study on t herheological behavior of t he slurries of Al2O3/ NiAl compositeceramics [J] . Acta Materiae Compositae Sinica , 2004 , 21 (2) :40 - 44.
[2]  Sacks M D. Properties of silicon suspension sand cast bodies[J] . Am Ceram Soc Bull , 1984 , 63 (7) : 1512 - 1515.
[3]  Frederickf F M , Santa B. Met hod for Preparation of DenseCeramic Product s : US , 5188780 [P] . 1993 - 02 - 03.
[4]  Beate B , Martink M H , Ludwig J G. I n situ rheological investigation of t he coagulation aqueous alumina suspensions [J] .Am Ceram Soc , 2001 , 84 (8) : 1733 - 1739.
[5]  Tutin , Kim M. Water-Soluble Sulfonated Melamine- Formaldehyde Resins : US , 5710239 [P] . 1998 - 01 - 13.
[6]  Pierre-Claude A. Cement s of yesterday and today , concrete oftomorrow [J] . Cement and Concrete Research , 2000 , 30 (6) :1349 - 1359.
[7]  Roosen A , Hausner H. Techniques for agglomeration cont rolduring wet-chemical powder synt hesis [J] . Adv Ceram Mater ,1988 , 3 (2) : 131 - 137.
[8]  Blanco Lopez M C , Rand B , Riley F L. Polymeric stabilisationof aqueous suspensions of barium titanate Ⅰ: Effect of p H[J] . J Eur Ceram So , 2000 , 20 (8) : 1579 - 1586.
[9]  Byman-Fagerholm H , Mikkola P , Rosenholm J B , et al . Theinfluence of lignosulfonate on t he properties of single andmixed Si3N4 and ZrO2 suspensions [J] . J Eur Ceram Soc ,1999 , 19 (1) : 41 - 48.
[10]  Samir B , Mohamed R B R , Sami B , et al. Effect of copolymerdispersant st ructure on t he properties of alumina suspensions[J] . Journal of t he European Ceramic Society , 2003 , 23 (6) :905 - 911.

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