Introduction
Thermosets refer to the set of materials formed by polymers joined by chemical bonds acquiring a highly cross-linked final structure. The highly cross-linked structure of thermoset materials is directly responsible for the high mechanical and physical resistance (stresses or loads, temperature…) of these materials compared to thermoplastics and elastomers. On the other hand, it is this highly cross-linked structure that provides low elasticity, giving these materials their characteristic brittleness.
How classify COMPOSITE MATERIALS? A simple scheme for classifying composite materials consists of three divisions: 1. Particle-reinforced composites. Particle-reinforced composites are subdivided into large-particle reinforced and dispersion-consolidated. This distinction is based on the consolidation or reinforcement mechanism. The term “large” is used to indicate that the matrix-particle interactions cannot be described at …
Compression molding is a process of molding in which a feeding material is placed into an open, heated mold cavity. The mold is then closed with a top plug and compressed with large hydraulic presses in order to have the material contact all areas of the mold. The charge cures in the …
Thermoplastics Processing Methods Thermoplastics are materials which soften when heated and can then be formed whilst soft. After cooling they becoming rigid take up the applied form. The softening and forming processes are reversible. Thermoplastics are probably the most widely used type of polymer. The group includes most of the “commodity” plastics …
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