What is the reason for using polymer polyethylene sheets as raw materials for chain guides
https://www.shengteerplastic.com/product/uhmw-polyethylene-natural-sheet
1. Good wear resistance: HDPE sheets have excellent wear resistance and self-lubricating performance, with a better self-lubricating coefficient than copper and iron when lubricants are added. UPE sheets also have a very small specific gravity, with a density of 0.98, which is almost the same as water. Therefore, the processing is very simple and convenient, and the use is not complicated.
2. Good impact resistance: uhmwpe sheets also have excellent impact resistance. The excellent impact resistance of polymer polyethylene sheets is closely related to their molecular weight. When the molecular weight is less than 2 million, the impact strength will also increase with the continuous increase of molecular weight, reaching a peak at 2 million. After reaching the peak, if the molecular weight increases again, the impact strength will actually decrease. This is because the molecular chain can hinder its photo crystal interaction in extreme conditions, resulting in a relatively large amorphous region within the macromolecule, which can absorb a very large amount of impact.
3. Low friction coefficient: UHMWPE board also have a very low friction coefficient and good self-lubricating performance, making them excellent materials for chain guides, bearing bushings, and sliders. Using UHMWPE pads as friction components for chain guides can not only improve wear resistance, but also achieve energy-saving effects.
