Sterman and Marsden

Achieving Glass-to-Matrix Adhesion. This subject has been expanded upon in several papers and is summarized well by Sterman and Marsden (13). A review of some of the key concepts in glass-to-polymer adhesion as it relates to thermosets and thermoplastics will serve the purposes of this paper. 

The work of Sterman and Marsden and Plueddeman was carried out with glasscloth polymer laminates (10, II, 14,15). In this way the effect of the silane could be optimized as to time and temperature of the molding cycle. Additionally, the glass was being used in its maximum strength form in that it was continuous. An additional factor is the absence of any shear forces. As an example, for a polystyrene laminate, the use of an epoxyfunctional silane increased the flexural strength 90% over the bare... 

As people concerned with such systems as paint, adhesives, and high-performance composites have long known, the effects of environmental exposure, especially to water, may be profound and deleterious. Water may plasticize the matrix and thus change its properties, or, as often happens, it may attack the substrate-matrix interface and cause failure (Halpin, 1969). Indeed, a major reason for the use of silane or other coupling agents on glass is to decrease the sensitivity to moisture (Bascom, 1969, 1970 Broutman and Krock, 1967, Chapters 6 and 13 Corten, 1966 Johannson et al, 1967 Kaas and Kardos, 1971 Plueddeman, 1970,1974 Plueddeman et al, 1962 Sterman and Marsden, 1966) for further details, see reviews by Bascom (1970, 1974). 

Both Plueddemann and Sterman and Marsden published on the use of organofunc-tional silanes in glass reinforced thermoplastic. Plueddemann divided thermoplastic resins into reactive and nonreactive categories. He... 

Sterman, S., and Marsden, J. G., The Effect of Silane Coupling Agents in Improving the Properties of Filled or Reinforced Thermoplastics II, presented at Annual Meeting SPI, Feb., 1966. 

Marsden, J.G. and S. Sterman, Organofunctional silane couphng agents (Chapter 40). Handbook of Adhesives (1. Skeist, ed.), 3rd ed.. Van Nostrand Reinhold, New York, 1990. 

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