classification
 
Water-repellent and oil-repellent needle-punched felt
2017/12/5 23:10:31 阅读次数:492

During operation of the bag filter the gas contains more moisture and dust and oily dust deliquescent hygroscopic and easy it is possible to generate a water film on the surface of dust or the film adhesion is increased although this helps catch Dust collection but it will make it difficult to clean the dust Especially when the high temperature gas is in a high humidity state condensation will occur due to the cooling effect of the external gas This will not only cause the trapped dust to scale on the surface of the filter bag or even clogging but also corrosion of the structural material so that dust increased running resistance direct impact on the normal operation of the bag filter in view of this ordinary filter must be further improved in function to suit this special working conditions To prevent or reduce the phenomenon of dust paste bag and improve the service life and work efficiency of the filter material.

In recent years our company has used reactive fluoride additives to post-treat various filter materials such as polyester, polypropylene, anti-static needle felt aramid needle felt, etc. and achieved ideal water and oil repellent effect Not only water and oil repellent The grade test meets the national standard and does not affect the appearance style and internal indicators of the original needle felt .

Water repellent and oil Mechanism: formulated with reactive fluoride impregnated filter auxiliaries fluid the working fluid in the macromolecular structure with a fibrous filter certain groups reacted forming macromolecular chain, changing the fiber with water, oil affinity can the surface tension of the filter is reduced to less than the surface tension of water and oil in order to achieve the purpose of water repellent and oil after the water- and oil-repellent treated by a variety of media can form a molecular barrier around the fiber surface may be and all kinds of material to prevent water buildup and oil penetration compared with the general media not only with a water repellent and oil properties, but also in terms of dust also has anti-adhesion and easy peeling the product is especially suited to China''s rainy south or Area and air humidity filter .


Production process: fiber opening --- combing --- stacking net --- acupuncture --- main acupuncture --- calendering --- impregnation water and oil proof working fluid --- baking --- heat Stereotype --- finished product


product name

Polyester water and oil resistant needle felt

PPS water and oil resistant needle felt

Fiber composition

Polyester staple fiber 2.2D/1.56D

PPS staple fiber 2.2D100 %

Base fabric

Polyester filament

PPS staple fiber

Gram

550g/m2

500g/m2

thickness

1.9mm

1.7mm

Water resistance level

Level 4

Air permeability m3/m2/min@12.7mmH2O

12

Warp strength (N/5cm)

1000

800

Weft strength (N/5cm)

1800

1300

Longitudinal elongation at break

35 %

35 %

Latitudinal elongation at break

45 %

45 %

Continuous working temperature

130 °C

170 °C

Instant working temperature

150 °C

232 °C

Surface treatment

High temperature hot pressing setting and hair

Singeing pressure light oil treatment water repellent

   
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