1.Characteristics
UHMW-PE sheet is our high technology product of independent devolopment that using the acvance technology of other country for reference . It has been awared as the national technical innovation project by The State Economic and Trade Commission. The characteristics of UHMW-PE sheet : light in weight , impact resistance , abrasion resistance , corrosion resistance , low friction coefficient , energy absorption , aging resistance , flame retardancy , antistatic , etc.
UHMW-PE sheet is used in:
1)Raw coal silo of power plant or coal mine;ores and other material storage of cement plant or steel and iron plant or aluminium plant;
2)Grain,fodder,grain of pharmaceutical industry,dock hopper etc.
3)Preventing material sticking and speed flow rate up,put end to blockage and save cost of air gun.
4)Avoiding powder lot adhere to cabin, and decrease damage of bulkhead.
2.UHMW-PE Variety,specification and application
|
Type |
Variety |
(mm) Specilfication |
Application |
|
HBG50 |
High Abrasion-Resistance Sheet |
|
Storehouse wail,prot machinery miningmachinery building machinery chute hopper. |
|
HBP45 |
Pure Ultra-high Sheet |
Transport machinery foods package environmental environmental protection papermaking ceramics. |
|
HBJ50 |
Electrosttic-Resistance Sheet |
Electrostatic protecting positions for mining in the pit,dork,and foods processing |
|
HBZ50 |
Burning-Preventing Sheet |
Mning in the pit mainly used in easily self-inflammation parts,such as coal storehouse |
|
HBC40 |
Color Sheet |
Packaging docorative matorial board fonder |
|
HBS40 |
Double-Color Sheet |
Wear easily found and Easily Check |
|
HBW35 |
Ultraviolet-Resistance Sheet |
Storehouse in the open,hopper board fender |
|
HBK40 |
Micro-Hole Sheet |
Filter-sheet |
1. Characteristics
Ultra-high Molecular Weight Polyethylene(UHMW-PE)is thermoplastic engineering plastic.It combines with all the advantages of plastics,some properties such as anti-impact,anti-wearability,chemical corrosion resistance,self0lubrication and low temperature resistance have reached their own highest values.Its application area will become wider and wider with the development of plastic processing technology.
2.Main properties (1).Excellent Abrasion-resistance
|
Material |
UHMW-PE |
Polytetra-fluoroethlene |
Nylon 6 |
A,Steel |
Polycglor ethylene |
Copper |
|
Specific Wearability |
0.32 |
1.72 |
3.30 |
7.36 |
8.63 |
13.12 |
(2).Good self-lubrication and low coefficent of friction
|
Matorial |
UHMWPE-coal |
Cast Stone Plate-coal |
Rust Steel-coal |
Rustless Steel Sheet-coal |
Concrete-coal |
|
Coefficient of friction |
0.15-0.25 |
0.30-0.45 |
0.45-0.58 |
0.30-0.40 |
0.60-0.70 |
(3).High anti-impact strength and good toughness
|
Material |
UHMW-PE |
Cast stone plate |
PAE6 |
POM |
F4 |
A3 |
45# |
|
Impact Strength |
100-160 |
1.6-1.5 |
6-11 |
8-13 |
16 |
300-400 |
700 |
(4).Good chemical corrosion resistance can resist almost all mediums such as acid,alcali and salt,but except for concen trated sulphuric-acid concentrated nitric and a few organic solvents.
(5).Inodorous innoxious and unpenertrable.
(6).Good conductibility and ultra-low water absorbability.
(7).Good anti-environmental stress breakage property which is 200 times of ordinary eithlene.
(8).Good cold resistance property which isn’t brittle even if at 176℃ below zero
Properties of UHMW-PE comparison with other engineering plastics
|
item |
experime-ntation |
Unit |
UHMW-PE |
ADS |
PA66 |
PC |
POM |
PHV |
|
behavioral physics |
density |
D1505 |
g/cm3 |
0.935 |
1.02-1.04 |
1.13-1.15 |
1.20 |
1.04 |
2.14-2.20 |
|
behavioral mechanical |
rift intensity |
D638 |
N/cm2 |
2900 |
2450-4214 |
6074-8232 |
5488-6556 |
6860 |
1372-3430 |
|
rift extensibility |
D638 |
% |
350 |
5-60 |
60-300 |
100-130 |
75 |
200-400 |
|
impulsive intensity(break up) |
D256 |
Cj.cm/cm3 |
no damage |
160-440 |
60-110 |
710-950 |
80-130 |
160 |
|
luos hardness bard |
D747 |
|
40 |
85-109 |
85-120 |
118 |
120 |
|
|
behavioral hot |
melting point |
D2117 |
℃ |
136 |
|
225 |
240 |
166 |
|
|
vicat softening point |
D1525 |
℃ |
134 |
|
|
|
|
|
|
hot deformation temperature |
D648 |
℃ |
85 |
96-108 |
182-244 |
132-144 |
170 |
121 |
|
expansion coeffcient |
D696 |
10-4/℃ |
1.5 |
0.95-1.3 |
0.8 |
0.66 |
0.81 |
1.0 |
|
electrical function |
volurme resistance |
D257 |
SL-CM |
1017 |
1015 |
1014 |
1016 |
1015 |
>1018 |
|
break down voltage |
D149 |
kv/mm |
50 |
14-20 |
15-19 |
16 |
15 |
20 |
|
dielectric constant |
D150 |
|
2.3 |
2.4-3.8 |
3.4-3.6 |
2.96 |
3.7 |
2.1 |
|
unaccoun-ted |
water-absorb rate |
D570 |
% |
<0.01 |
0.2-0.45 |
1.5 |
0.15 |
0.25 |
<0.01 |
|
cakulus |
|
|
not easy to calculus |
easy to calculus |
calculus |
easy to calculus |
easy to calculus |
not easy to calculus |
|
