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PPS Fiber 100% Wet-Laid Nonwoven Fabric

PPS Fiber 100% Wet-Laid Nonwoven Fabric
PS Type

This is the world’s first wet-laid nonwoven fabric made entirely from PPS (polyphenylene sulfide) fiber. PPS fiber is a high-performance crystalline thermoplastic engineering resin that exhibits outstanding properties, including heat resistance (melting point: 280°C; continuous service temperature: 200–220°C), steam resistance, chemical resistance (stable against acids, alkalis, and organic solvents), thermal insulation, and flame retardancy (self-extinguishing with a high Limiting Oxygen Index of 34). The PS type is a high-performance nonwoven fabric processed to a thickness range of 29–195 μm, fully leveraging the unique features of PPS fiber.

Key Features

  • Heat resistance
  • Chemical resistance
  • Flame retardancy
  • Steam resistance
  • PFAS alternative

Enlarged Image

PPS fiber (PS type) 100% wet-laid nonwoven fabric – low basis weight (20 g/㎡)
Low basis weight
20 g/㎡
PPS fiber (PS type) 100% wet-laid nonwoven fabric – high basis weight (100 g/㎡)
High basis weight
100 g/㎡

Application Examples

PS Type is used in demanding applications requiring high heat and chemical resistance, such as in the energy and mobility sectors.

Automotive mobility application – PS type PPS nonwoven fabric for high-temperature environments Energy sector application – PS type PPS nonwoven fabric for power generation equipment

Heat Resistance

PPS is classified as a super engineering plastic, with a maximum continuous use temperature of 200–220°C and a high melting point of 280°C. Compared to other polymers like PET and PE, it has excellent heat resistance, comparable to PTFE, which is a type of PFAS compound.

Heat resistance chart: PPS fiber maximum continuous use temperature 200–220°C, melting point 280°C

Chemical Resistance

PPS is resistant to many organic solvents and alkalis. Compared to polymers like PET and PE, it shows superior chemical resistance and is gaining attention as a potential alternative to PTFE.

Chemical Resistance PTFE PPS PET PE (HDPE) PA11/12
Acetone @100%, 20°C Suitable Suitable Conditionally suitable Conditionally suitable Suitable
Benzene @100%, 20°C Suitable Suitable Conditionally suitable Conditionally suitable Conditionally suitable
Chloroform @20°C Suitable Suitable Conditionally suitable Not suitable Not suitable
Ethanol @96%, 20°C Suitable Suitable Suitable Suitable Suitable
Methanol @100%, 20°C Suitable Suitable Conditionally suitable Suitable Suitable
Phenol @20°C Suitable Suitable Not suitable Suitable Not suitable
Mineral oil @20°C Suitable Suitable Suitable Suitable Suitable
Sodium hydroxide @10%, 60°C Suitable Suitable Not suitable Suitable Conditionally suitable
Toluene @20°C Suitable Suitable Conditionally suitable Conditionally suitable Suitable
Xylene @20°C Suitable Suitable Conditionally suitable Conditionally suitable Suitable

Source: Compiled by Hirose Paper Mfg. based on information from Omnexus “https://omnexus.specialchem.com/”

Grade List and Specifications

PS Type is a wet-laid nonwoven fabric made using PPS fiber, incorporating these characteristics. It is available in basis weights ranging from 16 g/㎡ to 106.2 g/㎡ and thicknesses from 29 μm to 195 μm.

Grade Basis Weight (g/㎡) Thickness (μm) Air Permeability (cm³/cm²·s)
PS0015S 16.0 29 172.3
PS0020 20.5 73 211.3
PS0040 39.2 100 62.7
PS0040S 40.2 61 23.6
PS0100S 106.2 128 1.2