Glass fiber-nylon matrix composite

The model PBZT/ABPBI molecular composite system is limited since the rod and the matrix do not possess glass transition temperatures for subsequent post form consolidation. In an effort to improve the processability for molecular composites, thermoplastics were used as the host matrix. Processing from acidic solvents requires the thermoplastic host to be soluble and stable in meth-anesulfonic add. Thermoplastic matrices were investigated including both amorphous and semicrystalline nylons [71,72], polyphenylquinoxaline (PPQ) [73] and polyetheretherketone (PEEK) [74], Table 5 shows the mechanical properties obtained for various processed PBZT thermoplastic molecular composite systems. As an example, the PBZT/Nylon systems showed 50-300% improvement over uniaxially aligned chopped fiber composite of comparable compositions. However, the thermally-induced phase separation during consol-... 

Reinforced Plastic n (RP) A plastic composition in which are embedded fibers that are much stronger and typically much stifier than the matrix resin. The reinforcements are usually fibers, rovings, fabrics, or mats, or mixed forms of glass, carbon, asbestos, metals, ceramics, paper, sisal, cotton, or nylon. Resins most commonly used are polyesters, phenolics, aminos, siH-cones, epoxies, and various thermoplastics. The term reinforced plastic includes some forms of Laminate and molded parts in which the reinforcements are not in layered form. When the resin is thermoplastic, the term reinforced thermoplastic is often used. Methods of forming reinforced-plastics articles from thermosetting resins are defined under the entries Ksted below. 

There was an increase in the creep of the material with the decrease in the fiber volume percentage (Figure 1), increase in temperature, and applied stress. Figure 2 shows the comparison of creep conpliances of the two composite materials at temperatures on either side of the glass transition temperature (50 °C) of nylon 6/6 [13]. This type of behavior can be attributed to the presence of a higher amount of load transfer from the matrix to the fiber and the constriction of the matrix to deformation. 

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