PPS plastic (polyphenylene sulfide)

English name: Polyphenesulphide Specific gravity: 1.36g/cm3 Molding shrinkage: 0.7% Molding temperature: 300-330 ℃. It is a kind of thermoplastic special engineering plastic with excellent comprehensive properties, and its outstanding characteristics are high temperature resistance, corrosion resistance and superior mechanical properties.

Pps plastics

Basic performance

As a special engineering plastic, PPS not only has good high temperature resistance, radiation resistance, chemical corrosion resistance, but also has high strength and dimensional stability. The brittleness of PPS is obvious, which limits its application range, so it is necessary to toughen PPS. The literature shows that PA66 blend modified PPS can improve the toughness of PPS to a certain extent, but the strength is still not ideal. GF is often used to improve the strength of polymers, which is an economical and efficient reinforcement material.

Physical properties

1. The electrical insulation (especially high-frequency insulation) is excellent, white hard and brittle, there is a metallic sound when falling to the ground, the light transmittance is second only to that of organic glass, the coloration is water resistant, and the chemical stability is good. It has excellent flame retardancy and is non combustible plastic.

2. The strength is general, the rigidity is good, but the quality is brittle, and the stress embrittlement is easy to occur; Not resistant to benzene, gasoline and other organic solvents; The long-term use temperature can reach 260 ℃, and it is stable in 400 ℃ air or nitrogen. After modification by adding glass fiber or other reinforcement materials, the impact strength, heat resistance and other mechanical properties can be greatly improved. The density is increased to 1.6-1.9, and the molding shrinkage is smaller to 0.15-0.25%. It is suitable for making heat resistant parts, insulating parts, chemical instruments, optical instruments and other parts.

Special plastic manufacturers