Rubber elasticity became the basis for elastic modulus. It is where you will get to know the stiffness and extensions of a material could be. In a rubber band, the reason for why it can be stretched out and will snap back when stretched then suddenly released lies with its polymer chains. It coils when at rest.When stretched out, it stiffens, pulling one chain by another. When suddenly released, the coils back then polymer chains relax, it snaps back. A material has an intensive property to resist conformity to deformation, stiffness. The high a material’s stiffness is, the longer its extension will be. A thermosetting resin is brittle in nature, and so is a glass fiber. Thermosetting resins have high-atomic-mass atoms but have less intensity of bonding, while glass fibers have strong bonding of molecules but movable not stable.However, these two could be molded into composite materials that should be tough. Thermosetting resin will serve as a solution for glass fiber, more like a coating. The thermosetting resin is molten and glass fiber is dipped in the resin solution.The high-atomic-mass atoms of a thermosetting resin will be compressed into the glass and will take the strong bonding of the glass’ molecules. Afterwards, the coated glass fiber is suddenly cooled to compress the high-atomic-mass atoms of the thermosetting resin and to strengthen the bond of the glass fiber’s molecules. Method of Chemical Strengthening.
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