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Ultra-high molecular weight polyethylene (UHMWPE) is a material for extreme operating conditions.





 

 

Ultra-high molecular weight polyethylene (UHMWPE) is a material for extreme operating conditions. It is resistant to abrasives, to aggressive environments, gamma-rays, to ultraviolet radiation, chemical resistance, exceptionally high impact resistance up to 170 kJ/m2, a low coefficient of friction – as Teflon, frost resistance down to minus 80 °C physiological inertness.

 

Ultra-high molecular weight polyethylene (UHMWPE)

The advantages of products based on UHMWPE

The use of ultra-high molecular weight polyethylene (UHMWPE)

Characteristics-properties of UHMWPE powder

The main methods of processing of UHMWPE

 


Ultra-high molecular weight polyethylene (UHMWPE):

Ultra-high molecular weight polyethylene (UHMWPE) is a polymer of linear structure with a molecular weight of more than 1.5 million Has properties that are in demand in various fields of technology and economy, especially in extreme conditions.






Ultra-high molecular weight polyethylene as a commodity product produced in powder form with a particle size in the region of 50-200 microns.

 

The advantages of products based on UHMWPE:

– the ability to molochnokislaya and the possibility of obtaining a heavy-duty threads (300-380 SN/Tex), exceeding their strength characteristics of the thread of all known materials,

resistance to abrasive action,

– extremely high impact resistance up to 170 kJ/m2,

low coefficient of friction – as Teflon,

– frost resistance to minus 80 °C,

physiological inertness,

– resistance to aggressive environments,





resistance to gamma radiation,

– increased rigidity,

chemical resistance,

– resistance to UV radiation.

 

The use of ultra-high molecular weight polyethylene (UHMWPE):

high strength yarns for the manufacture of medium body armor (bulletproof vests, helmets), parachute slings, ropes, woven and non-woven materials (protective clothing, parachutes, etc.);

lining of mining equipment, such as dump truck bodies, railcars, including for work in the North ore mining and mining equipment, including for work in Northern conditions;

parts and subassemblies for various purposes (gears, bearing sleeves, rails, etc.) and elements of mechanisms that require high strength, shock resistance, frost resistance, low coefficient of friction;





tapes and plates for the manufacture of sliding surfaces (artificial skating rinks, ski);

protective coating of apparatusoperating in corrosive environments;

filters for the food and chemical industries;

separator tape for batteries.

 

Characteristics-properties of UHMWPE powder:

Features: Value:
The molecular weight in the field 1 •106 – 8 • 106 (adjustable)
The average particle size in the area of 50-180 microns (adjustable)
Narrow distribution of particle size SPAN < 1,0
High bulk density powder 400-500 g/l
The ash content in titanium not more than 3 ppm
The total ash content not more than 150 ppm

 

The main methods of processing of UHMWPE:

pressing (sintering under pressure),

sintering,

REM-extrusion,

spraying (horacemann, electrostatic),

gel-forming (fiber).