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room temperature

Film-covered needle felt

2019/8/27 9:58:41　阅读次数：304

The needle-punched felt of the film coating adds the characteristics of the film material on the basis of the original filter material. Generally, the polytetrafluoroethylene microporous film is used, and the surface is smooth, water-repellent, and chemically stable. It can almost intercept all the dust in the dusty airflow, and can ensure the maximum flux of the airflow without increasing the running resistance. It is an ideal flue gas filter material.

Polyester long fiber filter cloth performance parameters:

Product name			Polyester peritoneal needle felt
Material			Ordinary film				High-strength base fabric coating
Weight ( g/m2 )			450	500	550	600	400	450	500	550	600
Thickness ( mm )			1.6	1.8	2.0	2.2	1.4	1.55	1.75	1.95	2.15
Air permeability ( L/m2/S )			60	48	40	30	58	55	45	37	32
Breaking strength ( N/5 × 20cm )		through	>750	>750	>800	>800	>1000	>1000	>1100	>1100	>1150
Breaking strength ( N/5 × 20cm )		latitude	>1150	>1200	>1300	>1400	>1250	>1300	>1400	>1500	>1500
Elongation at break (%)		through	<35	<35	<35	<35	<25	<25	<25	<25	<25
Elongation at break (%)		latitude	<55	<55	<55	<55	<45	<45	<45	<45	<45
Breaking tension ( Mpa/min )			2.20	2.25	2.35	2.45	2.30	2.40	2.45	2.50	2.60
Working temperature ( °C )			≤ 130	≤ 130	≤ 130	≤ 130	≤ 130	≤ 130	≤ 130	≤ 130	≤ 130
Instantaneous operating temperature ( °C )			150	150	150	150	150	150	150	150	150
Acid resistance			good				good
Alkali resistance			in				in
Abrasive			excellent				excellent
Hydrolytic stability			in				in
	Post-treatment singeing , calendering , heat setting , lamination