هواة جمع الغبار تستخدم إبرة البوليبروبيلين تصفية شعر الحقيبة

Name

Polypropylene needle felt

Type

pp

pp

Weight:g/㎡

500∽600

700∽1000

Thickness:mm

2.0

2.2

Air permeability:L/㎡.s

100 ∽ 200

100 ∽ 200

Breaking strength

warp

>1000

>1200

N/5*20cm

weft

>1500

>1800

Breaking elongation

warp

<25

<35

%

weft

<55

<55

Continuous working Temperature℃

≤90

≤90

Instant working temperature ℃

100

100

Acid resistance

excellent

excellent

Alkali resistance

excellent

excellent

Abrasion resistance

excellent

excellent

Hydrolytic stability

excellent

excellent

Post-Treatment

Singeing,calendering

Singeing,calendering