UPE material datasheet


Ultra-high-molecular-weight polyethylene (UHMWPE, UHMW) is a subset of the thermoplastic polyethylene. Also known as high-modulus polyethylene, (HMPE), or high-performance polyethylene (HPPE), it has extremely long chains, with a molecular mass usually between 3.5 and 7.5 million amu. 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.

 

Chemical and physical properties

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 (see boundary lubrication); 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.

* Citing source: Wikipedia

  

 

Chemical resistance chart

How to use this chart

» Meaning of symbol:

       OK: Recommend

△: Must confirm if usable by testing advanced. 

 X: Not recommend

» This chart only provide result of single chemical to material, if client use more than one kinds of chemical in the same time, please choose material by experience.

» This chart is for reference which not able to be applicable to all environment. Please design equipment according to practical experience.

 

Catagory Chemical UPE
Organic acids Acetic acid

OK (10%-100% @ 20°C) △ (80%-100% @ 60°C)

Organic compound  Alcohol:methyl
OK (20°C,60°C)
 Benzene  (20°C) X (60°C)
Ethylene glycol
OK (20°C,60°C)
Formic acid
OK (20°C,60°C)
 Toluene X (20°C, 60°C)
Inorganic compound Ammonia
OK (20°C,60°C)
 Ammonium chloride OK (20°C,60°C)
Ammonium nitrate
OK (20°C,60°C)
Ammonium sulfate
OK (20°C,60°C)
Calcium Chloride
OK (20°C,60°C)
Calcium hydroxide
OK (20°C,60°C)
Hydrochloric acid

OK (20°C,60°C)

Nitric acid

OK (0%-30% @ 20°C,60°C△ (30%-50% @ 20°C, 60°C

 (>=70% @ 20°C,60°C) X (Fuming @ 20°C,60°C)

Potassium hydroxide
OK (20°C, 60°C)
Sodium carbonate
OK (20°C,60°C)
Sodium hydroxide

OK (20°C,60°C)

 Sulfuric acid

OK (0%-80% @ 20°C) △ (98% @ 20°C)

X (80%-98% @ 60°C) X (Fuming @ 20°C, 60°C)

 

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