Morphology and properties of PET/PA-6/SiO2 ternary composites

Morphology and properties of PET/PA-6/SiO2 ternary composites
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PET/PA-6/SiO2三元复合材料的形貌与性能

DOI:
10.1002/app.25690
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发表时间:
2007-05
影响因子:
3
通讯作者:
Fu, Qiang
Fu, Qiang
中科院分区:
化学3区
文献类型:
--
作者:
Cao, Wen;Qu, Cheng;Yang, Hong;Liang, Dong;Fu, Qiang

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将一种亲水性纳米sio2应用于聚对苯二甲酸乙酯/聚酰胺-6 (PA-6)共混物中。制备了不同组分比和不同纳米sio2含量的熔融共混复合材料。进行了力学、形态、动态力学和热测试,以表征复合材料的性能、形态和相容性。在共混物中加入纳米sio2颗粒,可以提高共混物的冲击强度、拉伸强度和模量。发现纳米sio2颗粒优先分散在PA-6中,导致PA-6的玻璃化转变温度升高和结晶化。基于纳米sio2颗粒在共混物中的选择性分散,讨论了形貌和性能变化的机理。©2007 Wiley期刊公司应用化学学报,2009,31 (2):387 - 398
A kind of hydrophilic nano-SiO2 was applied to poly(ethylene terephthalate)/polyamide-6 (PA-6) blends. Melt-blended composites were prepared at various component ratios and different nano-SiO2 levels. Mechanical, morphological, dynamic mechanical, and thermal tests were carried out to characterize the properties, morphology, and compatibilization of the composites. Increased impact strength, tensile strength, and modulus were observed by adding nano-SiO2 particles in the blends. The nano-SiO2 particles were found to be preferentially dispersed in PA-6, resulting in an increase of glass transition temperature and crystallization of PA-6. The mechanism of morphology and properties changes was discussed based on the selective dispersion of nano-SiO2 particles in the blends. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 2288–2296, 2007
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期刊: MACROMOLECULES
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