The strongest fiber – ultra-strong fiber from VSMPO stronger than steel 6 letters crossword puzzle synthetic
The strongest fiber – ultra-strong fiber from SMPA.
The strong fiber – fiber from UHMWPE – stronger than steel 10 times stronger than Kevlar by 40%. UHMWPE fiber is the only high-strength fiber, with buoyancy (0,98 g/cm3). Fibers of UHMWPE have a light weight, weather resistance, resistance to frost (up to – 80 ° C), water resistance.
The basic characteristics of the fiber from UHMWPE
The technology of producing UHMWPE-fiber
Description:
Ultra-high molecular weight polyethylene (UHMWPE) is a material for the manufacture of sverkhvysokochastotnogo durable fiber and medium armor.
Fibers of UHMWPE stronger than steel and 10 times stronger than Kevlar by 40%. Resistance to ballistic impact of armor on the basis of UHMWPE 25% higher durability armor made of Kevlar, which in this case is 1.5 times heavier.
UHMWPE fiber is the only high-strength fiber, buoyant (of 0.98 g/cm3).
Main characteristics of fiber of UHMWPE:
| Specific breaking load, SN/Tex GOST 6611.2-73 | The modulus of elasticity SN/Tex GOST 6611.2-73 | |
| Strong fiber based on UHMWPE | ||
| Polypropylene | ||
| With a para-aramid |
Advantages:
– high resistance to abrasion,
– shock resistance,
– chemical resistance,
– resistance to UV radiation,
– high mechanical characteristics (tensile strength, modulus of elasticity) compared to fibers from other polymers,
– light weight,
– weather resistance,
– frost resistance (–80 oC),
– good abrasion properties
– water resistance,
– the vibration absorbing capacity,
– high resistance to ballistic impacts, which makes the fiber, for example, a promising material for the production of bonestructure for protection against fragments and bullets (vests, helmets).
The technology of producing UHMWPE-fiber:
Sverkhvysokochastotnoi strong fiber obtained from the method of UHMWPE gel spinning.
The technology consists of dissolving the UHMWPE in a solvent (e.g. decalin or paraffin oil). If a diluted solution (concentration 5%) to squeeze through thin openings in water, it turns into a gel which is then subjected to a 30-fold elongation in a furnace (at 100°C and more). If this fibre is removed the solvent. The extrusion speed of the fiber up to 100 m/min is Obtained a heavy-duty fiber high modulus, specific strength which is higher than aramid fiber.
Get heavy-duty fiber retains all the properties of UHMWPE.
Application:
High strength thread from ultrahigh molecular weight polyethylene can be processed:
– in ultra-light composite materials combining high mechanical properties and impact resistance (air, vertoleta, shipbuilding and automotive);
– in personal and collective armor protection (body armor, combat helmets, bulletproof panels);
– products of mass demand (super-tough rope-rope products, slings, cables, fabrics, tapes, etc.).
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