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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

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PPS Fiber 100% Nonwoven Fabric PS Type Low Basis Weight (20 g/㎡)
Low basis weight
20 g/㎡
PPS Fiber 100% Nonwoven Fabric PS Type 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.

Mobility Energy

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.

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.

〇 = Usable　 △ = Usable under certain conditions　 × = Not usable

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