Mechanical and thermal properties of poly (propylene carbonate)/PA66 short fiber composites

被引：0

作者：

Jiang, Guo ^{[1
]}

Feng, Jian ^{[1
]}

Huang, Han-Xiong ^{[1
]}

Zhang, Shui-Dong ^{[1
]}

机构：

[1] Department of Industrial and Control Engineering, College of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou

来源：

Gongneng Cailiao/Journal of Functional Materials | 2015年 / 46卷 / 02期

关键词：

Hydrogen bond; Mechanical properties; PA66 short fiber; Poly(propylene carbonate); Thermal properties;

D O I：

10.3969/j.issn.1001-9731.2015.02.016

中图分类号：

学科分类号：

摘要：

Poly(propylene carbonate) (PPC)/nylon 66(PA66) short fiber composite were prepared by a co-rotating twin-screw extruder. The structure and properties were investigated. The mechanical and thermal properties of PPC/PA66 composites were evaluated by tensile and impact test, differential scanning calorimetry (DSC) and thermogravimetry analysis (TGA), respectively. Results of FT-IR reveal that the hydrogen bond has formed between the carbonyl group of PA66 and hydrogen group of PPC. The properties of composites are affected significantly by the content of PA66 short fiber. The tensile and impact strength, thermal stability of composites is increased when the content of PA66 short fiber is lower than 20wt%. The increase of impact strength, decomposition temperature of 5% mass loss (T-5%) and glass transition temperature of PPC with 20 wt% PA66 short fiber loading is 315.81%, 32.2 and 3.8℃, respectively. When the content of PA66 short fiber is 30wt%, a significant aggregation of PA66 short fiber is observed by SEM, which causes the decrease of mechanical and thermal properties for composite. This illuminates that the improvement of the mechanical properties and thermal stability for PPC with the addition of PA66 short fiber is owing to the formation of hydrogen and the characterization of PA66 short fiber (such as drawing deformation by stress). ©, 2014, Journal of Functional Materials. All right reserved.

引用

页码：02076 / 02079and02083

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