Filtering material for metallization of non-woven base fabrics for normal temperature and preparation method of filtering material
A technology of metallization treatment and non-woven fabrics, which is applied in the field of industrial textiles, can solve the problems of less anti-static filter materials, unstable anti-static performance, and large surface resistance, and achieve easy large-scale mass production and anti-static properties. Good, the effect of long production process
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Embodiment 1
[0028] (1) Dry the polyester fiber nonwoven base fabric at 60°C for 24 hours;
[0029] (2) Physically degrease the dried polyester fiber nonwoven base fabric under the action of a 90kHz ultrasonic field for 30 minutes;
[0030] (3) Perform plasma pretreatment on the base fabric of polyester fiber nonwoven fabric after step (2) for 20 minutes;
[0031] (4) Vacuum evaporation method is used to coat the polyester fiber non-woven base fabric of step (3) with two layers of metal nickel on both sides, and the thickness of the single layer of coating is 0.05 μm. After testing, the resistance of the antistatic filter material base cloth is 1×10 3 Ω;
[0032] (5) The surface layer raw materials of polyester fiber non-woven fabrics are mixed, opened, carded, formed into a net, and added in the middle by steps (4) of base cloth, acupuncture, and shaping to prepare anti-static filter materials.
Embodiment 2
[0034] (1) Dry the polypropylene fiber nonwoven base fabric at 100°C for 36 hours;
[0035] (2) Physically degrease the dried polypropylene fiber nonwoven base fabric under the action of a 40kHz ultrasonic field for 50 minutes;
[0036] (3) Carry out corona pre-treatment for 60 minutes on the base fabric of polypropylene fiber nonwoven fabric after step (2);
[0037] (4) Vacuum evaporation method is used to coat the polypropylene fiber non-woven fabric base cloth in step (3) with a layer of metallic silver, a layer of metallic copper, and a layer of metallic nickel on both sides, and the thickness of the single-layer plating layer is 1 μm. After testing, the resistance of the antistatic filter material base cloth is 1×10 2 Ω.
[0038] (5) The surface layer raw materials of polyester fiber non-woven fabrics are mixed, opened, carded, formed into a net, and added in the middle by steps (4) of base cloth, acupuncture, and shaping to prepare anti-static filter materials.
Embodiment 3
[0040] ⑴Dry the polyester fiber and vinylon fiber mixed non-woven fabric base fabric at 80°C for 48 hours;
[0041] (2) Physically degrease the dried polyester fiber and vinylon fiber mixed non-woven fabric base fabric under the action of 20kHz ultrasonic field for 60min;
[0042] (3) Perform ion source pre-treatment on the base fabric of polyester fiber and vinylon fiber mixed non-woven fabric for 30 minutes after step (2);
[0043] (4) Using the physical vapor deposition method, the polyester fiber and vinylon fiber mixed non-woven fabric base cloth of step (3) is coated with a layer of metallic silver and a layer of metallic nickel on both sides, and the thickness of the single-layer plating layer is 0.1 μm. After testing, the resistance of the base cloth of the antistatic filter material is 0.3×10 3 Ω.
[0044] (5) The surface layer raw materials of nylon fiber nonwoven fabric are mixed, opened, carded, formed into a net, and the base cloth treated by step (4) is added i...
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