Abstract
A study of the effect of plasma treatments on the mechanical properties and adhesion of ultra-high strength polyethylene fibres to epoxy resin is reported. Fibres were treated with ammonia plasma under various time and power conditions. The fibre/matrix interfacial shear strength was measured using load and fibre pull-out data obtained in a single-fibre pull-out test. The debonding was optically as well as acoustically monitored. Optical birefringence patterns were visible at the fibre debond region. Acoustic emission signals generated from debonding and stick-slip processes were also detected. A more than four-fold increase in the interfacial shear strength was achieved by plasma treating the fibres at the discharging condition of 30 W and 0.5 torr for 1 min. The birefringence patterns showed, qualitatively, that the shear in the matrix around the fibres increased for treated fibres and extended further into the matrix material. Surface topography of the pulled out fibres showed that the failure mode was unchanged by the treatment.
Similar content being viewed by others
References
H. W. Chang, L. C. Lin andJ. F. Lindsey, in “31st International SAMPE Symposium”, Vol. 31, Los Angeles, CA, edited by J. Bauer and R. Dunaetz (SAMPE, Covina, CA, 1986) p. 859.
R. S. Zimmerman andD. F. Adams, in “32nd International SAMPE Symposium”, Vol. 32, San Diego, CA, edited by R. Carson, M. Burg, K. J. Kjoller and F. J. Riel (SAMPE, Covina, CA, 1987) p. 1461.
D. W. Woods, W. K. Busfield andI. M. Ward,Plastics Rubber Process. Applic. 9 (1988) 155.
I. M. Ward,Brit. Polym. J. 18 (1986) 216.
N. H. Ladizesky andI. M. Ward,J. Mater. Sci. 18 (1983) 533.
A. R. Postema andA. J. Pennings, in “High Modulus Polymers — Approaches to Design and Development”, edited by A. E. Zachariades and R. S. Porter (Marcel Dekker, New York, 1988) p. 431.
N. X. Nguyen, G. Riahi, G. Wood andA. Poursartip, in “33rd International SAMPE Symposium”, Vol. 33, Anaheim, CA, edited by G. Carillo, E. D. Newell, W. D. Brown and P. Phelan (SAMPE, Covina, CA, 1988) p. 1721.
S. L. Kaplan, P. W. Rose, N. X. Nguyen andH. W. Chang,ibid., (1988) p. 1721.
S. Holmes andP. Schwartz,Compos. Sci. Technol. 38 (1990) 1.
Z.-F. Li andA. N. Netravali,J. Appl. Polym. Sci. 44 (1992) 319.
Idem, ibid. 44 (1992) 333.
H. Yasuda, “Plasma Polymerization” (Academic Press, New York, 1985).
P. Z. Allred, E. W. Merrill andD. K. Roylance, in “Molecular Characterization of Composite Interface”, edited by H. Ishida and G. Kumar (Plenum Press, New York, 1985).
P. Schwartz, A. Netravali andS. Sembach,Textile Res. J. 56 (1986) 502.
A. C. Cohen,Technometrics 7 (1965) 579.
O. S. Kolluri, S. L. Kaplan andP. W. Rose, “Gas Plasma and the Treatment of Advanced Fibers”, paper presented at the Society of Plastics Engineers, “Advanced Polymer Composites 1988”, Technical Conference, Los Angeles, CA, November 1988 (SPE, Brookfield, CT, 1988)
D. T. Grubb,J. Polym. Sci. Polym. Phys. Ed. 21 (1983) 165.
P. S. Chua andM. R. Piggott,Compos. Sci. Technol. 22 (1985) 33.
Idem, ibid. 22 (1985) 185
A. Takaku andR. G. C. Arridge,J. Phys. D Appl. Phys. 6 (1973) 2038.
H. Lee andK. Neville, “Handbook of Epoxy Resins” (McGraw-Hill, New York, 1967).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Li, Z.F., Netravali, A.N. & Sachse, W. Ammonia plasma treatment of ultra-high strength polyethylene fibres for improved adhesion to epoxy resin. J Mater Sci 27, 4625–4632 (1992). https://doi.org/10.1007/BF01165997
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01165997