Sintered polyethylene is a

polyethylene Polyethylene or polythene (abbreviated PE; IUPAC name polyethene or poly(methylene)) is the most commonly produced plastic. It is a polymer, primarily used for packaging (plastic bags, plastic films, geomembranes and containers including ...

powder that is formed into a solid without melting it. It can be produced using heat, pressure, or

selective laser sintering Selective laser sintering (SLS) is an additive manufacturing (AM) technique that uses a laser as the power and heat source to sinter powdered material (typically nylon or polyamide), aiming the laser automatically at points in space defined b ...

. It has applications as a coating on pipes and skis, and as a filter medium.

Applications

Pipes

Sintered polyethylene is applied to steel pipes to resist corrosion. Pipes are heated and then polyethylene powder coated, either electrostatically or through immersion.

Skis

Sintered polyethylene was introduced as a coating on

skis A ski is a narrow strip of semi-rigid material worn underfoot to glide over snow. Substantially longer than wide and characteristically employed in pairs, skis are attached to ski boots with ski bindings, with either a free, lockable, or partia ...

in 1962. It is more durable, and less dense than solid, extruded polyethylene. Its porous structure allows the ski to absorb wax.

Filter medium

Sinter plate filter elements were developed in Germany during the years of 1981 and 1982. These rigid filter elements are used in dust collectors and will produce clean gas values of 0.1 to 1.0 mg/m3 with emissions of 0.001 pounds per hour with a maximum of 0.0004 gr/ft3, even with dusts of D50 < 1 µm. The EP

defines high efficiency as removal of 0 to 5.0 µm particulates.

The filter element matrix consists of molded

sintered Clinker nodules produced by sintering Sintering or frittage is the process of compacting and forming a solid mass of material by pressure or heat without melting it to the point of liquefaction. Sintering happens as part of a manufacturing ...

(PE) with a reinforced mounting header. An additional

PTFE Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications. It is one of the best-known and widely applied PFAS. The commonly known brand name of PTFE-based composition is Teflon by Chem ...

-coating gets into the pores of the PE-basic body and forms a micro-porous, non-sticking surface resulting in surface-loaded filtration. This combined material is chemical resistant and unaffected by slight moisture. The rigid sinter plate filters have an extremely stable structure and can be recycled. The average useful life of a sinter plate filter element can exceed 10 years. Sinter plate PE filter elements are environmentally compatible. They produce no toxic waste in themselves and can be washed off and reused. There is no contamination of material from filter fibers like fabric and cartridge media elements. Dust collector#Fabric Collectors The rigidity of the matrix results in no wear from abrasive material. Cleaning is accomplished by on-line, low-pressure reverse air jet-pulse. Standard elements will handle temperatures up to 158 °F with improved elements designed for up to 230 °F The separation efficiency exceeds that required by the BIA-certificate regarding dust classification M.

References

Filters {{material-stub