Effect of Adding Amount of Gypsum Powder on Microstructure and Mechanical Properties of High Density Polyethylene
In order to improve the mechanical properties of high density polyethylene PE--HD,the PE--HD/gypsum powder material was prepared by adding gypsum powder modification method.The microstructure and mechanical properties of PE--HD material were compared under different gypsum powder dosage conditions.The results show that when the content of gypsum powder changes,the crystallization peak temperature of the material samples also changes significantly,and the lowest crystallization peak temperature is formed when the content of gypsum powder reaches 40%.With the increase of gypsum powder content,the impact strength of the material increases.When the gypsum powder content exceeds 40%,the impact strength of the material first decreases and then rises.Plastic deformation work and absorbed fracture work are also the highest,with good comprehensive performance.This research is helpful to improve the performance of high density polyethylene material,and has a good popularization value.
HIGH density polyethylenegypsum powdermicrostructuremechanical properties
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