Laminate straight fibre laminates

Figure 4.9 compares the average thickness of optimum designs obtained using VICONOPT with straight fibre laminates and variable angle tows obtained using either CTS or AFP techniques where the latter assumes shifted (similar) tow paths obtained... 

Fabric composites have mechanical properties similar to those of laminates made from orthogonal uni-directional layers. However, fibre curvature arising from yarn twist and weave crimp makes fabric reinforcement less efficient than in the case of aligned straight fibres. 

Whilst the straight bisphenoi A-epichlorhydrin epoxies described above have found widespread use in such applications as adhesives, castings, encapsulations and glass-fibre laminates they are used to a relatively small extent in surface coatings. In this important field, mainly modified bisphenoi A-epichlorhydrin epoxies are used. Two principal types of modification are commercially practised, namely combination with other resins and esterification. 

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