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材料工程  2010 

叶蜡石粉体的偶联活化改性研究

, PP. 88-91

Keywords: 偶联剂,叶蜡石,活化改性,表征

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Abstract:

本工作对叶蜡石进行了偶联活化改性研究,使得叶蜡石从亲水性粉体转变为憎水性粉体。在本研究中,叶蜡石粉体通过在表面偶联一层N-(正丁基)-3-氨丙基三甲氧基硅烷(BAPTS)偶联剂进行活化处理,研制出活化指数达到100%的改性叶蜡石粉体。通过活化指数、黏度、表面接触角等手段,对叶蜡石表面偶联改性情况进行了表征,并对活化机理进行了分析讨论。研究了活化指数、黏度、表面接触角与偶联性能之间的关系。结果表明偶联剂的添加量为1.0%(质量分数,下同)时,活化指数达到100%。偶联剂添加量为1.5%时,改性叶蜡石-液体石蜡体系的黏度达到最大值85.78mPa·s。偶联剂的添加量为2.0%时,对水的表面接触角达到最大值75°。偶联修饰是制备活化叶蜡石粉体的一种有效方法,能够使偶联剂与叶蜡石粉体形成牢固结合。

References

[1]  ZHAO Yong-sheng,WANG Ke-jian,ZHU Fu-hua,et al.Properties of poly(vinyl chloride)/wood flour/montmorillonite composites:effects of coupling agents and layered silicate[J].Polymer Degradation and Stability,2006,91(12):2874-2883.
[2]  MAURIZIO AVELLA,FEDERICA BONDIOLI,VALERIA CANNILLO,et al.Poly(ε-caprolactone)-based nanocomposites:influence of compatibilization on properties of poly(ε-caprolactone)-silica nanocomposites[J].Composites Science and Technology,2006,66(7-8):886-894.
[3]  AMIT DAS,FRANCIS RENY COSTA,UDO WAGENKNECHT,et al.Nanocomposites based on chloroprene rubber:effect of chemical nature and organic modification of nanoclay on the vulcanizate properties[J].European Polymer Journal,2008,44(11):3456-3465.
[4]  KRISHNA B S,MURTY D S R,PRAKASH B S JAI.Surfactant-modified clay as adsorbent for chromate[J].Applied Clay Science,2001,20:65-71.
[5]  ERDEMOGLUA M,ERDEMOGLUB S,SAYILKANC F,et al.Organo-functional modified pyrophyllite:preparation,characterisation and Pb(II) ion adsorption property[J].Applied Clay Science,2004,27:41-52.
[6]  GUERRA DENIS L,VIANA RUBIA RIBEIRO,AIROL CLADIUDIO.Adsorption of mercury cation on chemically modified clay[J].Materials Research Bulletin,2009,44:485-491.
[7]  ANGELA DE MELLO FERREIRA GUIMARES,VIRGINIA SAMPAIO T CIMINELLI,WANDER LUIZ VASCONCELOS.Smectite organofunctionalized with thiol groups for adsorption of heavy metal ions[J].Applied Clay Science,2009,42:410-414.
[8]  LIU Hai-tao,ZHOU Yong-qiang,SHENG Zhen-hong,et al.N-(n-butyl)-3-aminopropyltrimethoxysilane-functional modified pyrophyllite:preparation,characterisation and Pb(II) ion adsorption property[J].Advanced Materials Research,2009,79-82:2075-2078.

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