Product Description
What is UHMWPE?
Ultra high molecular weight polyethylene (UHMWPE, UHMW) is a subset of the thermoplastic polyethylene. It has extremely long chains, with a molecular mass usually between 2 and 6 million u. The longer chain serves to transfer load more effectively to the polymer backbone by strengthening intermolecular interactions. This results in a very tough material, with the highest impact strength of any thermoplastic presently made.
UHMWPE is odorless, tasteless, and nontoxic. It is highly resistant to corrosive chemicals except oxidizing acids; has extremely low moisture absorption and a very low coefficient of friction; is self-lubricating; and is highly resistant to abrasion, in some forms being 15 times more resistant to abrasion than carbon steel. Its coefficient of friction is significantly lower than that of nylon and acetal, and is comparable to that of polytetrafluoroethylene (PTFE, Teflon), but UHMWPE has better abrasion resistance than PTFE.
Feature of UHMWPE Pipes
- Abrasion resistance – UHMWPE pipes have excellent abrasion resistance-15 times than carbon steel, make it has a longer life than steel pipe and HDPE pipe.
- Chemical resistance – Highly resistant to corrosive chemicals except oxidizing acids allows the use of UHMWPE systems in tailings pipelines and chemical treatment applications used in mining operations.
- Flexibility – UHMWPE pipes can be bent to a minimum of 30 times the pipe’s outside diameter for HDPE. This flexibility and resiliency allows the pipe to absorb surge pressures, vibration and stresses caused by soil movement. This makes the pipes particularly useful in submarine pipe lines, mine subsidence and earthquake prone areas.
- High flow capacity – low friction compared with materials such as fibre reinforced cement and resistance to material deposit buildup give UHMWPE pipes long lived high flow capacity.
- Lower pumping cost due to greater hydraulic capacity as compared with steel and HDPE pipes.
- Easy installation – UHMWPE is light in weights only 1/8 of steel pipe and can by be connected by steel flanges.
Application of UHMWPE pipe:
- UHMWPE PIPE for mine tailings and slurry in the mining industry
- UHMWPE PIPE for dredging mud and sand
- UHMWPE PIPE for thermal power system coal ash transport
- UHMWPE PIPE corrosive particles and liquids
- UHMWPE PIPE transport pulverized coal and coal-water slurry
- UHMWPE PIPE for food transport
