Influence of Silane Coupling Agents on the Interlaminar and Thermal Properties of Woven Glass Fabric/Nylon 6 Composites

Donghwan Cho; Suk Hyang Yun; Junkyung Kim; Soonho Lim; Min Park; Sang-Soo Lee; Geon-Woong Lee

Macromolecular Research, Vol.12, No.1, 119-126, February, 2004

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Influence of Silane Coupling Agents on the Interlaminar and Thermal Properties of Woven Glass Fabric/Nylon 6 Composites

Donghwan Cho^†, Suk Hyang Yun, Junkyung Kim¹, Soonho Lim¹, Min Park¹, Sang-Soo Lee¹, and Geon-Woong Lee¹

Department of Polymer Science and Engineering, Kumoh National Institute of Technology, Kumi, Kyungbuk 730-701, Korea
¹Polymer Hybrid Research Center, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul 130-650, Korea

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In this study, the influence of silane coupling agents, featuring different organo-functional groups on the interlaminar and thermal properties of woven glass fabric-reinforced nylon 6 composites, has been by means of shortbeam shear tests, dynamic mechanical analysis, scanning electron microscopy, and thermogravimetric analysis. The results indicate that the fiber-matrix interfacial characteristics obtained using the different analytical methods agree well with each other. The interlaminar shear strengths (ILSS) of glass fabric/nylon 6 composites sized with various silane coupling agents are significantly improved in comparison with that of the composite sized commercially. ILSS of the composites increases in the order: Z-6076 with chloropropyl groups in the silanes > Z-6030 with methacrylate groups > Z-6020 with diamine groups; this trend is similar to that of results found in an earlier study of interfacial shear strength. The dynamic mechanical properties, the fracture surface observations, and the thermal stability also support the interfacial results. The improvement of the interfacial properties may be ascribed to the different chemical reactivities of the reactive amino end groups of nylon 6 and the organo-functional groups located at the ends of the silane chains, which results from the increased chemical reactivity in order chloropropyl > methacrylate > diamine.

Keywords:interlaminar property;dynamical mechanical property;woven glass fabric/nylon 6 composite;silane coupling agent.

[References]

Drzal LT, SAMPE J., Sep-Oct, 7 (1983)
Kim JK, Ma YW, Engineered Interfaces in Fiber Reinforced Composites, Elsevier, Amsterdam (1998)
Thomason JL, Adzima LJ, Composites: Part A, 32, 313 (2001)
Ritter JE, Learned JC, Jacome GS, Russel TP, Lardner TJ, J. Adhes., 76, 335 (2001)
Plueddemann EP, Silane Coupling Agents, Plenum Press, New York (1982)
Larson BK, Drzal LT, Composites, 25, 711 (1994)
Vaughan DJ, Handbook of Composites, S.T. Peters, Ed., Chapman & Hall, London, Chapter 7 (1998)
Al-Moussawi H, Drawn EK, Drzal LT, Polym. Compos., 14, 195 (1993)
Laura DM, Keskkula H, Barlow JW, Paul DR, Polymer, 43(17), 4673 (2002)
Herrera-Franco PJ, Drzal LT, Composites, 23, 2 (1992)
Drzal Lt, Herrera-Franco PJ, Ho H, Comprehensive Composite Materials, Elsevier, Amsterdam, Vol. 5, pp. 71 (2000)
Yun SH, Cho DH, Kim J, Lim S, Lee GW, Park M, Lee SS, J. Mater. Sci. Lett., 22(22), 1591 (2003)
Cho D, Choi Y, Drzal LT, J. Adhes., 79, 1 (2003)
Costa ML, deAlmeida SFM, Rezende MC, Combust. Sci. Technol., 61, 2101 (2001)
Wilenski MS, The Improvement of the Hydrothermal and Mechanical Properties of Bismaleimide and K3B/IM7 Carbon Fiber Composites Through a Systematic Study of the Interphase, Ph.D. Dissertation, Michigan State University (1997)
Pegorett A, Fidanza M, Migliaresi C, DiBennedetto AT, Composites: Part A, 29A, 283 (1998)
Thomason JL, Polym. Compos., 11, 105 (1990)
Fisher I, Siegmann A, Narkis M, Polym. Compos., 23, 464 (2002)
Choi Y, Dynamic Mechanical Properties of LaRC PETI-5 Polyimide, the Blends and the Composites, MS Thesis, Kumoh National University of Technology, Korea (2001)
Neilson LE, Mechanical Properties of Polymer and Composites, Marcel Dekker, Inc., New York (1974)
Chua PS, SAMPE Quart., 18, 10 (1987)

[Referenced By]

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[1] Drzal LT, SAMPE J., Sep-Oct, 7 (1983)

[2] Kim JK, Ma YW, Engineered Interfaces in Fiber Reinforced Composites, Elsevier, Amsterdam (1998)

[3] Thomason JL, Adzima LJ, Composites: Part A, 32, 313 (2001)

[4] Ritter JE, Learned JC, Jacome GS, Russel TP, Lardner TJ, J. Adhes., 76, 335 (2001)

[5] Plueddemann EP, Silane Coupling Agents, Plenum Press, New York (1982)

[6] Larson BK, Drzal LT, Composites, 25, 711 (1994)

[7] Vaughan DJ, Handbook of Composites, S.T. Peters, Ed., Chapman & Hall, London, Chapter 7 (1998)

[8] Al-Moussawi H, Drawn EK, Drzal LT, Polym. Compos., 14, 195 (1993)

[9] Laura DM, Keskkula H, Barlow JW, Paul DR, Polymer, 43(17), 4673 (2002)

[10] Herrera-Franco PJ, Drzal LT, Composites, 23, 2 (1992)

[11] Drzal Lt, Herrera-Franco PJ, Ho H, Comprehensive Composite Materials, Elsevier, Amsterdam, Vol. 5, pp. 71 (2000)

[12] Yun SH, Cho DH, Kim J, Lim S, Lee GW, Park M, Lee SS, J. Mater. Sci. Lett., 22(22), 1591 (2003)

[13] Cho D, Choi Y, Drzal LT, J. Adhes., 79, 1 (2003)

[14] Costa ML, deAlmeida SFM, Rezende MC, Combust. Sci. Technol., 61, 2101 (2001)

[15] Wilenski MS, The Improvement of the Hydrothermal and Mechanical Properties of Bismaleimide and K3B/IM7 Carbon Fiber Composites Through a Systematic Study of the Interphase, Ph.D. Dissertation, Michigan State University (1997)

[16] Pegorett A, Fidanza M, Migliaresi C, DiBennedetto AT, Composites: Part A, 29A, 283 (1998)

[17] Thomason JL, Polym. Compos., 11, 105 (1990)

[18] Fisher I, Siegmann A, Narkis M, Polym. Compos., 23, 464 (2002)

[19] Choi Y, Dynamic Mechanical Properties of LaRC PETI-5 Polyimide, the Blends and the Composites, MS Thesis, Kumoh National University of Technology, Korea (2001)

[20] Neilson LE, Mechanical Properties of Polymer and Composites, Marcel Dekker, Inc., New York (1974)

[21] Chua PS, SAMPE Quart., 18, 10 (1987)