Glass Fiber Reinforced PPS Rod/Plate

Updated: 2026-08-06

Overview

Glass-fiber reinforced PPS rods and sheets are composite materials combining polyphenylene sulfide (PPS) with glass fibers to enhance mechanical and thermal properties. PPS is a semi-crystalline polymer known for its inherent stability, while glass fibers add tensile strength and rigidity. These materials are favored in industries requiring components that withstand temperatures up to 220°C and resist chemicals, friction, and electrical currents. Their lightweight yet durable nature makes them alternatives to metals in many applications.

Structure and Working Principle

The material consists of a PPS matrix uniformly embedded with glass fibers, typically comprising 30-40% of the composite. The fibers align during extrusion or compression molding, providing anisotropic strength—higher along the fiber orientation. PPS's molecular structure features aromatic rings linked by sulfur atoms, granting thermal stability. The glass fibers distribute stress and reduce thermal expansion, while the polymer matrix resists chemical degradation and provides electrical insulation.

Key Features

Thermal performance is a standout trait, with a continuous use temperature of 200-220°C and UL94 V-0 flammability rating. The glass fibers increase tensile strength to 150-200 MPa, surpassing unfilled PPS by 2-3x. Chemical resistance covers acids, alkalis, and solvents, though strong oxidizers may degrade it. The material’s low moisture absorption (<0.05%) ensures dimensional stability in humid environments, critical for precision parts.

Application Areas

In automotive systems, these rods/sheets are used for sensor housings, pump components, and transmission parts due to heat and fuel resistance. Electrical applications include connectors and insulating barriers in motors. Industrial uses span chemical pump liners, bearing pads, and semiconductor equipment. The FDA-compliant variants serve in food processing machinery, leveraging non-toxicity and cleanability.

Maintenance and Precautions

While resistant to wear, abrasive conditions may require periodic inspection. Machining demands carbide tools to avoid splintering; slow speeds and cooling are recommended. UV exposure can cause surface degradation—apply coatings or use indoor placements. Storage should be in dry conditions below 40°C to prevent moisture absorption (minimal but non-zero over time).

B2B Procurement Guide

Specify glass-fiber content (e.g., 30% vs. 40%) based on strength needs. Verify certifications like UL or FDA for sector-specific compliance. Samples should be tested for thermal cycling and chemical exposure. Lead times vary; stock sizes (e.g., 6mm rods, 1m sheets) are quicker, while custom profiles may take weeks. Bulk orders (500+ kg) often secure 10-15% discounts. Reputable suppliers provide material data sheets (MDS) with test metrics.