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Properties of Polyethylene Granules

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Time of issue:2022-11-17 13:59
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(Summary description)The mechanical properties of polyethylene are average, the tensile strength is low, the creep resistance is not good, and the impact resistance is good.

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Properties of Polyethylene Granules

(Summary description)The mechanical properties of polyethylene are average, the tensile strength is low, the creep resistance is not good, and the impact resistance is good.

Categories:Industry trends
Author:
Origin:
Time of issue:2022-11-17 13:59
Views:

Information

The mechanical properties of polyethylene are average, the tensile strength is low, the creep resistance is not good, and the impact resistance is good. Impact strength LDPE>LLDPE>HDPE, other mechanical properties LDPE crystallinity and relative molecular weight, with the improvement of these indicators, its mechanical properties increase. Environmental stress cracking resistance is not good, but when the relative molecular weight increases, it improves. Good puncture resistance, among which LLDPE is the best.

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The heat resistance of polyethylene is not high, and it improves with the increase of relative molecular weight and crystallinity. Good low temperature resistance, the brittle temperature can generally reach below -50°C; and with the increase of relative molecular weight, the lowest can reach -140°C. The linear expansion coefficient of polyethylene is large, up to (20~24)×10-5/K. High thermal conductivity.
Because polyethylene is non-polar, it has excellent electrical properties of low dielectric loss and high dielectric strength. It can be used as frequency modulation insulating materials, corona-resistant plastics, and high-voltage insulating materials.

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