Melting point and melting heat affects the value of the basic performance parameters

When heated from room temperature to start, from a solid performance polyethylene resin becomes viscous material. Some of these changes are the plastic deformation of the crystal phase suffered due. But it is important because the molten crystal phase.

Completion of the heat of fusion is solid - phase transition in the molten state the energy required. Hot melt between the linear density. In theory, if 100% of the heat of fusion of crystalline polyethylene is known. Then a polyethylene heat of fusion of the crystalline portion of the sample can seek out the crystallization ratio of the specimen and 100% through. When calculating the crystallinity of the sample, to 68.4 ~ 69.2cal / g for 100% crystalline polyethylene is used as the melting