PPS (polyphenylene sulfide) is a kind of high performance engineering plastic with special properties. Here are some advantages and disadvantages of PPS materials:

The specific gravity of PPS material is 1.36g/cm 3, the shrinkage rate of the material is 0.7%, the molding temperature range is usually between 300 ° C and 330 ° C, it is a thermoplastic special engineering plastic with excellent comprehensive properties, and its outstanding characteristics are high temperature resistance, corrosion resistance and superior mechanical properties.

Advantages:

High temperature performance: PPS can withstand continuous operating temperature above 200 ° C, and even can withstand high temperature of about 260 ° C for a short time.

Chemical stability: PPS has good chemical resistance to most chemicals and organic solvents.

Dimensional stability: The low linear expansion coefficient of PPS means that the size of the material changes little when the temperature changes.

Flame retardant: PPS is naturally flame retardant and does not require the addition of flame retardants.

Creep resistance: PPS exhibits excellent creep resistance under the action of high temperature and force.

Mechanical strength: PPS has good mechanical strength, hardness and toughness.

Wear resistance: PPS has good wear resistance and is suitable for making parts requiring wear resistance.

Cons:

Processing difficulty: The melting point of PPS is very high (about 280 ° C), the processing temperature range is narrow, and it is not easy to process.

Price: As a high-performance engineering plastic, PPS is usually more expensive than general purpose plastics such as polypropylene (PP) or polyethylene (PE).

Poor toughness: Although PPS has good mechanical strength, its impact toughness is not as good as some other engineering plastics, such as polycarbonate (PC).

Poor stability when stress is applied: The stability of PPS may decrease when subjected to external stress for a long time.

Water absorption: Although the water absorption of PPS is not high, for some special applications, its water absorption may affect its performance.

In general, PPS materials are widely used in a wide variety of complex and demanding components in electronics, automotive, aerospace and industry due to their good performance in extreme environments. When choosing to use PPS materials, you need to consider their advantages and limitations according to the specific application.