low friction paper machinery UHMWPE suction box cover
UHMWPE(Ultra-high Molecular Weight Polyethylene) wear resistance dewater element is used for paper manufacturing machinery. Dewater element component includes: suction box covers, Doctor blade,Forming board,Scraper blade and so on. UHMWPE had used in parts of paper manufacturing machinery widely.
Main Properties
1. Excellent Abrasion-resistance
2. Good self-lubrication and low coefficient of friction
3. High anti-impact strength and good toughness
4. Good chemical corrosion resistance can resist almost all mediums such as acid,alcli and salt,but except for concen trated sul-phuric-acid,concentrated nitric and a few organic solvents.
5. Inodorous,in noxious and impenetrable
6. Good conductibility and ultra-low water absorbability
7. Good anti-environmental stress breakage property which is 200 times of ordinary ethylene
8. Good cold resistance property which isnit brittle even if at 176°Cbeiow zero.
Technical Parameters
| Property | Unit | Value |
| Density | g/cm3 | 0.93-0.96 |
| Average molecular weight | g/mol | 3million- 10 million |
| Tensile strength (23°C in air) | MPa | 22 |
| Breaking strength | MPa | 42 |
| Tensile strain at break | % | 600 |
| Charpy impact strength (notched) | mJ/mm2 | No break |
| Ball indentation hardness | N/mm2 | 42 |
| Shore D hardness | -- | 65-70 |
| Abrasion | % | 70-80, steel = 100 |
| Static Friction Coefficient | -- | ≤0.16 |
| Kinetic Friction Coefficient | -- | ≤0.10 |
| Water Absorption | -- | NIL |
| Elongation at break at 23 degress | % | ≥300 |
| Temperature resistance | °C | -269 to +85 |
| Melt Temperature | °C | 130-140 |
