The Studying on the Influence of Coupling Agents to Short Glass Fiber Reinforced Polyamide Composites

Abstract:

Influence of coupling agents on microstructure and mechanical properties of short glass fiber reinforced PA66 composites(SGF/PA66) were investigated by using twin screws extruder and injection machine in this paper. When coupling agents (A1100 or A1100+A+B) were added, short glass fiber was distributed in the PA66 matrix more homogeneously; at the same time, the microstructure and properties of GF/PA66 were improved too. Modified effect of multiple coupling agent (A1100+A+B) is better than that of only A1100 and the desired content of A1100 is about 1.5~2.0wt%. When glass fiber content was less than the critical value (35~40%), mechanical properties of PA composites increase with fiber content increasing, but it begin to decrease when content was excess that value. At last, Failure mechanism of GF/PA66 (treated by A1100 or A1100+A+B) was obtained: adhesion of interface between glass fiber and PA66 matrix, friction after the adhesion, glass fiber pullouted and matrix failure.

• Periodical: Advanced Materials Research (Volumes 181-182)
• Pages: 836-841
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.181-182.836
• Online since: January 2011
• Authors: Jiang Liu, Xiang Guo Liu
• Keywords: Coupling Agent, Microstructure, Polyamide Composites, Short Glass Fibre

References

[1] C.S. Lee and A. Kagan: Auto. Eng. Int., No. 4 (1998), p.190.

[2] N. Y Jia and A. Kagan: Polym. Composites, Vol. 19 No. 4 (1998), pp.408-414.

[3] Hamdid, Salehi-Mobarakeh: Polymer Composites, Vol. 19 No. 3 (1998), p.264~274.

[4] S. C Tjiong and Y. Z Meng: Polymer, Vol. 39 No. 22 (1998), p.5461~5466.

[5] N.S. Chol, Takahashi. J. Composites Materials, Vol. 42 No. 7 (2008), pp.760-783.

[6] A. King, W. Tucker: Polym. Composite, Vol. 28 No. 1 (2007), pp.142-154.