The general properties of crystalline polymers are: distinct and sharp melting point, higher specific gravity, higher tensile strength and tensile modulus, lower ductility and impact strength, creep r

The rate of crystallization is dependent on temperature, of which there are two significant points: ( The glass transition temperature. Below Tg, there is virtually no molecular motion on a local scal

Crystal growth is achieved by the further addition of folded polymer chain segments and only occurs for temperatures between the melting temperature Tm and the glass transition temperature Tg Higher t

Crystal formation begins at nucleation points and extends outwards into the bulk of the polymer. Nucleation starts with small, nanometer-sized areas where as a result of heat motion some chains or the

The degree of crystallinity in a crystalline material is affected not only by the chemical structure of the polymer, but by the process conditions that are used to manufacture the workpiece Crystallin

Relatively short polymer chains form crystals more readily than long chains, because the long chains tend to be more tangled. High crystallinity generally means a stronger material, but low molecular

In the molten phase, crystalline polymers closely resemble amorphous polymers. However, the real difference between the two exhibits itself during cooling. As crystalline polymers cool, small areas of

Crystallinity is one of the great divisions of the complete family of plastics. Crystalline olymers(those with a significant degree of crystallization) behave very differently than amorphous polymers(

Injection molding shrinkage is one of the properties when the material temperature drips. The rate of molding shrankage is needed in determining the final workpiece dimensions. The value indicates the