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UHMWPE


Ultra-high molecular weight polyethylene (UHMWPE) refers to the linear polyethylene whose average molecular weight is more than 1.5 million,the molecular weight of ordinary polyethylene is only 20~300 thousands.Comparing with HDPE,LDPE and other plastic materials,UHMWPE has the unmatched overall performance.


High abrasion resistance,four times higher than nylon PA66,Teflon,six times higher than carbon steel,the best in all synthetic resin.

High impact strength,two times higher than PC,five times higher than ABS,it can maintain high toughness at the liquid nitrogen temperature (-196℃).

Better self-lubricating property is fairly with PTFE,the friction coefficient is only 0.07~0.11 and 1/4~1/3 of steel friction coefficient.

Impact energy absorption value is the highest in all plastics, has the best silencing effect.

High chemical stability,can resist all kinds of corrosive medium and organic medium in a certain temperature and concentration range.

Wonderful anti-adhesive capability,second only to PTFE-king of plastic. 

Completely health non-toxic,can be used in contact with food and medical industry.

The smallest density in all engineering plastics,56% lighter than PTFE,22% lighter than PC,

UHMWPE can be made into gears, cams, impellers, rollers, pulleys, bearings, bearings, bushings, pins, gaskets, seals, flexible couplings, screws and pipe clamp,based on the excellent property of abrasion and impact resistance.These parts are used in textile machinery,paper-making machinery,packaging machinery.


Technical Data

Property

Test  Standard

Unit

PE300

PE500

PE1000

Density

ISO1183

g/cm3

0.98

0.98

0.98

Average  Molecular Weight

---

g/mol

4.5*106

7.2*106

9.2*106

Water  Absorption

---

%

< 0.01

< 0.01

< 0.01

Tensile  Stress F(150/10)

ISO11542-2

MPA

0.22±0.05

0.34±0.07

0.51±0.09

Yield  Elongation

ISO291

%

20

20

20

Yield  Stress

ISO527

MPA

17

17

17

Elongation  at Break

ISO291

%

>50

>50

>50

Tensile  Modulus

ISO291

1mm/min

MPA

570

680

790

Ball  Indentation Hardness(30s value test load 358N)

ISO2039

N/mm2

35

35

35

Shore  Hardness D (15s value)

ISO868

---

60

60

61

Charpy  Impact Strength

(angle  14)

ISO11542-2

KJ/m2

90

≥120

150

Min.Working  Temperature

---

-269

-269

-269

Heat  Deflection Temperature

ISO291

80

80

80

Vicat  Softening Point

ISO291

130

130

130

Melting  Point

ISO3146-C

130~135

130~135

130~135

Linear  Thermal Expansion Coefficient(23~80)

ISO11359

-1

2*10-4

2*10-4

2*10-4

Thermal  Conductivity 23

ISO291

---

0.41

0.41

0.41

Volume  Resistance

ISO291

Ω.m

>1012

>1012

>1012

Surface  Resistance

ISO291

Ω

>1012

>1012

>1012

Dielectric  Strength

ISO291

KV/mm

45

45

45

Dielectric  Constant(under 100HZ 1mhz)

ISO291

---

---

2.1

3.0

2.1

3.0

2.1

3.0

Comparatice  Tracking Index

(CTI  CTIM)

ISO291

---

---

600

600

600

600

600

600

Arc  Resistance

ISO291

Rating

L4

L4

L4

                                                            


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