Preparation and Mechanical Properties of Polyamide-6 Composites Reinforced with Fir Flour/SiO2 Hybrid Material
Preparation and Mechanical Properties of Polyamide-6 Composites Reinforced with Fir Flour/SiO2 Hybrid Material
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DOI：
10.1080/03602559.2012.671431
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发表时间：
2012-06
影响因子：
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通讯作者：
Zhong Li;Tie-jun Shi;D. Tan
中科院分区：
文献类型：
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作者：
Zhong Li;Tie-jun Shi;D. Tan
采用溶胶-凝胶渗透法制备了杉木粉/二氧化硅杂化材料(FSHM)。用傅立叶变换红外光谱(FT-IR)和扫描电子显微镜(SEM)对样品的形貌和结构进行了表征。采用熔融共混法在双螺杆挤出机中制备了FSHM增强尼龙6(PA6)复合材料。用γ-氨丙基三乙氧基硅烷或环氧树脂作为相容剂对部分高强硅橡胶进行处理。当FSHM含量为25wt.%时，复合材料的拉伸强度比纯PA6提高了23.3%，弯曲强度提高了59.8%。两种相容剂均改善了FSHM与PA6之间的界面粘结，从而提高了复合材料的冲击强度。
Fir flour/SiO2 hybrid material (FSHM) was fabricated by Sol-gel infiltration process. The morphology and structure were investigated by Fourier transformed infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). The composites of polyamide-6 (PA6) reinforced with FSHM were prepared by melt-mixing in twin-screw extruder. Part of FSHM was treated with γ-aminopropyltriethyoxysilane or epoxy resin as compatibilizer. Tensile strength of the composites with 25 wt.% of FSHM increased by almost 23.3% compared to that of pure PA6, whereas 59.8% increase in flexural strength was observed. Both compatibilizers improved interfacial adhesion between FSHM and PA6, resulting in increased impact strength of the composites.