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Aug 20, 2024
Filter cloth is a general term encompassing all types of industrial filter fabrics, including: belt filter cloth, vertical filter cloth, hydrogen membrane materials, graphene-based filter cloth, paper forming fabrics, non-woven fabrics, and more. This article introduces the common classifications of filter cloth and their physical and chemical properties.
Synthetic Fibers: Polyester (PET), Polypropylene (PP), Nylon (PA), Vinylon (PVA), etc.
Natural Fibers: Cotton, Linen, Silk, etc.
Woven Types: Plain weave, Twill weave, Satin weave, Double-layer weave, and other modified patterns.
Non-woven Types: Non-woven fabric, Needle-punched felt, etc.
Includes: Monofilament filter cloth, Multifilament filter cloth, Mono-multi composite filter cloth, Multi-mono composite filter cloth, among others
Includes: Vacuum belt filter, Vertical press filter, Plate and frame filter press, Centrifuge, Rotary drum filter, etc.
Polyester (PET)
Chemical Properties: Excellent acid resistance (especially to weak acids); not resistant to concentrated sulfuric acid or strong alkalis (e.g., hot caustic soda).
Physical Properties: Outstanding abrasion resistance; temperature resistance 130–150°C; high tensile strength; suitable for chemical and pharmaceutical industries.
Chemical Properties: Good resistance to both acids and alkalis; not resistant to chlorosulfonic acid, concentrated nitric acid, and other strong oxidizing agents.
Physical Properties: Low density (0.91 g/cm³); temperature resistance ≤ 90°C; low water absorption; suitable for food processing and mining dewatering.
Nylon (PA)
Chemical Properties: Provides good resistance to alkalis while being resilient against weak acids but does not withstand strong acids such as concentrated sulfuric acid.
Physical Properties: Highest abrasion resistance among all fibers; high strength; poor UV resistance; suitable for rubber and ceramics industries.
