MECHANICAL PERFORMANCE OF GLASS WOVEN FABRIC COMPOSITE: EFFECT OF HYBRID INTERPHASE WITH DIFFERENT SURFACE TREATMENT AGENTS

摘要

Combining with two or more components differing from physical and mechanical properties, composite materials can obtain a desirable characteristic. Fiber's surface morphology can be considered as one part of the nature properties of fiber/matrix bonding [1-2]. It is also generally recognized that bonding strength at the fibre-matrix interfaces has a great effects on composite material's mechanical properties, therefore, an appropriate engineered fiber/matrix interphase are able to improve composite's strength, toughness and environmental stability significantly [3]. As well know that, bonding strength was mainly depending on physical absorption, chemical reaction and bonding between fiber surface layer and matrix resin, which is strongly influenced by modification of fiber surface (surface treatment or sizing) [4-7]. The concept of "hybrid composites" is based on the composite principle which two or more materials are combined together to obtain better optimization of useful composite properties to suit specific requirements and applications than conventional composite, such as hybrid reinforcement and matrix hybridization. For further exploitation the idea of hybrid composites, current interest and attempt is performed to use the same type of fiber with different surface treatments for a given composite. Up until now, glass reinforced polymer matrix composite material has already evolved to be a kind of important engineering material due to its light weight and excellent mechanical properties, which is also widely applied all around the world. There are many methods or treating agents for glass fiber's surface treatment including protecting fibers from damage and improving the adhesion between fiber and matrix. Played an important role in the field of glass fiber's surface treatment, silane coupling is generally employed in industry for glass fiber' surface modification to improve both the abrasion between fibers and interfacial adhesion between delimited materials forming a functional interlayer by wet/chemical process.