Effects of hydrophobation treatments of wood particles with an amino alkylsiloxane co-oligomer on properties of the ensuing polypropylene composites
Effects of hydrophobation treatments of wood particles with an amino alkylsiloxane co-oligomer on properties of the ensuing polypropylene composites
复制标题
用氨基烷基硅氧烷共聚低聚物对木材颗粒进行疏水处理对所得聚丙烯复合材料性能的影响
DOI：
10.1016/j.compositesa.2012.08.011
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Mai, Carsten
中科院分区：
文献类型：
--
作者：
Xie, Yanjun;Krause, Andreas;Militz, Holger;Steuernagel, Leif;Mai, Carsten
本研究用氨基烷基硅氧烷共低聚物处理木屑，使其重量百分比分别增加1.5%、4.5%和7.0%，并测定了偶联效应对后续木质聚丙烯复合材料性能的影响。以正丙基三甲氧基硅烷(烷基硅烷)和3-氨丙基三乙氧基硅烷(氨基硅烷)为对照。与未处理粒子填充的复合材料相比，共低聚物处理的复合材料在吸水率和尺寸膨胀率方面都比其他两种硅烷处理的复合材料表现出更大的降低。由于共低聚物的处理，复合材料的弯曲冲击强度和夏比冲击强度都略有下降，但拉伸强度提高了23%。动态力学分析和显微镜观察也证明了硅烷的不同作用。这些结果表明，使用共聚低聚物可以产生高度疏水的复合材料，其力学性能的任何改善都可以与氨基硅烷相媲美。
In this study an amino alkylsiloxane co-oligomer was used to treat the wood particles to weight percent gains of 1.5%, 4.5%, and 7.0%, respectively, and coupling effects on the properties of the ensuing wood polypropylene composites were determined. The n-propyl-trimethoxysilane (alkylsilane) and 3-amino-propyltriethoxysilane (aminosilane) were also used for comparison. Compared to composites filled with untreated particles, composites treated with co-oligomer exhibited greater reduction in both the rates of water uptake and dimensional swelling than those treated with the other two silanes. Both, the flexural- and Charpy impact strengths of the composites, were moderately reduced but the tensile strength increased up to 23% due to treatment with the co-oligomer. The different effects by the silanes were also evidenced by dynamic mechanical analysis and microscopy. These results show that use of the co-oligomer can create a highly hydrophobic composite and any improvement in the mechanical properties is comparable to that with aminosilane.
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DOI：
10.1016/j.compositesa.2012.04.007
发表时间：
2012-09-01
影响因子：
8.7
作者：
Asumani, O. M. L.;Reid, R. G.;Paskaramoorthy, R.
通讯作者：
Paskaramoorthy, R.
DOI：
10.1016/j.compositesa.2009.10.008
发表时间：
2010-02-01
影响因子：
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通讯作者：
Pukanszky, Bela
DOI：
--
发表时间：
2000
期刊：
Journal of The Institute of Wood Science
影响因子：
--
作者：
C. Hill
通讯作者：
C. Hill
影响因子：
9.1
作者：
George, J;Bhagawan, SS;Thomas, S
通讯作者：
Thomas, S
DOI：
10.1007/s00107-007-0176-6
发表时间：
2007-03
期刊：
Holz als Roh- und Werkstoff
影响因子：
--
作者：
S. Kazemi Najafi;M. Tajvidi;Elham Hamidina
通讯作者：
S. Kazemi Najafi;M. Tajvidi;Elham Hamidina