Product Description
UHMWPE Product
Ultra-high molecular weight polyethylene (UHMWPE) is engineering thermoplastic, the molecular can reach 3.0-9.2 million. It is characterized by the good properties of many kinds of plastics, like wear-resistant, impact-resistant, corrosion resistant, low-temperature resistant, self-lubricating, impact-absorbing etc.
Applications:
1. Lining: Silos, hoppers, wear-resistant plates, brackets, chute like reflux devices, sliding surface, roller, etc.
2. Food Machinery: Guard rail, star wheels, guide gear, roller wheels, bearing lining tile, etc.
3. Paper-making machine: Water lid plate, deflector plate, wiper plate, hydrofoils.
4. Chemical industry: Seal filling plate, fill in dense material, the vacuum mold boxes, pump parts, bearing lining tile, gears, sealing joint surface.
5. Other: Agricultural machinery, ship parts, electroplating industry, extreme low temperature mechanical components.
3. Other properties
3.1. Good corrosion-resistance
UHMWPE has good chemical property, is resistant to acid, alkaline, salt like corrosive fluid and organic solvent in certain temperature and density.
3.2. Health and non-toxic
UHMWPE is odorless, non-toxic, non-corrosive in itself, has physical and physiological adaptation circular, which is allowed to touch directly with food and medicine by FDA and USDA. So it could be used in the special area that has strict requirements on health.
3.3. Non adhesion
3.4. Cold resistance
Brittle temperature drops to -140º C when the molecular weight is over 0.5million. Under the effect of liquid nitrogen, , the UHMWPE still has a certain degree of mechanical strength when the working temperature can reach below -º Cº C.
We could also supply you HDPE, OIL NYLON, PU and PTFE products.
Types and Sizes:
| Types |
Size |
| Length |
Width |
Thickness |
O.D. |
| Sheet |
3080 |
1220 |
6.5-200 |
|
| Rod |
300-1000 |
|
|
30-200 |
| Slice |
|
110 |
3 |
|
| Pipe |
3000-5000 |
|
3-20 |
120-800 |
Properties of UHMWPE:
1. Good property
1.1. Wear-resistant UHMWPE material has the best performance of wear-resistance among the plastics, and the higher of molecular, the better of wear-resistance and impact-resistance.
| Material |
UHMW-PE |
PTFE |
PA66 |
HDPE |
45# Carbon Steel |
Brass |
| Index of Sand fluid wear loss |
1 |
5 |
5 |
10 |
7 |
27 |
1.2. Impact Strength
UHMWPE material has the best performance of impact-resistant among all the plastics, with very high impact strength even under the temperature of -70ºC.
| Material |
UHMW-PE |
HDPE |
ABS |
PA66 |
PC |
POM |
PTEE |
Impact strength
KJ/ cm 2 |
≥140 |
27 |
16-44 |
60-110 |
71-95 |
8-13 |
16 |
Note: Tested under ASTMD256
1.3. Self-lubricate
| Material |
Friction coefficient |
| No lubricate |
Water lubricate |
Oil lubricate |
| UHMW-PE |
0.07-0.22 |
0.05-0.10 |
0.05-0.08 |
| PTFE |
0.04-0.25 |
0.04-0.08 |
0.04-0.05 |
| PA66 |
0.15-0.40 |
0.14-0.19 |
0.06-0.11 |
| POM |
0.15-0.35 |
0.10-0.20 |
0.05-0.10 |
Note: Tested under ASTMD1894
1.4. Water absorption
Water absorption is extremely low for UHMPE material. So, the Physical and chemical properties are not influenced by the wet conditions.
| Material |
UHMW-PE |
ABS |
PA66 |
PC |
POM |
PTFE |
| Water absorption |
< 0.01 |
0.20-0.45 |
1.5 |
0.15 |
0.25 |
< 0.01 |
Note: Tested under ASTM570 2. General Properties:
| Properties |
Item |
UHMWPE |
ASMT Testing |
| Physical |
Relative Molecular Weight /ten thousand |
200 |
D2857 |
| Density /(g/ cm 3 ) |
0.935 |
D1505 |
| Material Density/(g/ cm 3 ) |
0.46 |
D392 |
| Average granularity/m |
100-200 |
- |
| Mechanical |
Rupture strength/MPa |
40-45 |
D638 |
| Elongation of breaking/% |
300-400 |
D638 |
| Bending strength /MPa |
600 |
D747 |
| Impact strength/(KJ/m2) |
≥140 |
D250 |
| Hardness Shore /HRM |
100-200 |
D747 |
| Loss of weight/(mg/1000times) |
70 |
D1175 |
| Thermal |
Melting point/ºC |
136 |
D2117 |
| Temperature of thermal deformation/ºC |
85 |
D648 |
| Linear Expansion Coefficient /10-4ºC-1 |
1.5-2.5 |
D696 |
| Thermal conductivity /(W/(m.k) ) |
8.5 |
D177 |
| Electrical |
Volume resistivity /(Ω.cm) |
10 |
D257 |
| breakdown voltage /(KV/mm) |
50 |
D149 |
| dielectric constant |
2.3 |
D150 |
|
The products for other of our conveyor parts.
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