PPS ( Polyphenylene Sulfide) Injection Molding
The PPS or known as polyphenylene sulfide is a high-performance, engineered, moldable thermoplastic that offers well-balanced properties and excellent characteristics. This thermoplastic is highly needed for challenging corrosive, chemically strenuous, and high-temperature environments. With that characteristic, it is perfect for the injection molding process to make parts and components that use for a wide range of industrial applications.
The process of PPS injection molding is to create parts and components in just a minute. Meaning it is perfect for those who wanted a high-production process. In order to improve high strength, exceptional properties, and flame resistance, PPS injection molding from NDDMold is perfect for you.
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Advantages When Choosing PPS Injection Molding Process
PPS Injection Molding Processing Methods
To make quality and reliable PPS or polyphenylene sulfide parts and components, we doing different processing methods including the following:
Pre-drying. This is the first step it helps to enhance the molding appearance of a PPS product. It will happen at a temperature of 150 to 160 degree Celsius in 2 to 3 hours. Pre-drying is highly important to give quality products.
Injection Molding. It is the process where perfect for high productivity. It works by molding a PPS material at a mold temperature of 50 degrees Celsius and the next step is pos-crystallizations at 200 degree Celsius. Below are some specifications on how injection molding works.
- Cylinder temperature: 300 up to 320 degree Celsius
- Injection pressure: 40 to 70MPa
- Mold Temperature: 120 to 160 degrees Celsius
- Screw speed 40 – 100 rpm
Extrusion. This is the next if highly needed due to it being perfect for monofilament and fiber also for rod, tubing, and slab. The specification of this process are:
- Mold temperature: 300 to 310 degrees Celsius
- Drying Condition: 121 degrees Celsius for almost 3 hours
- Melt temperature: 290 to 235 degrees Celsius
PPS offers a balance of properties which make it perfect for demand applications that need chemical and heat resistance. But aside from that, it also offers excellent characteristics such as:
- Dimensional stability
- High thermal stability
- Excellent hydrolytic stability
- Inherently self-extinguishing
- High-stress cracking resistance
- High reproducibility
- High modulus and creep resistance
- Saltwater resistance
- Freshwater resistance
- Good radiation resistance
- Flame retardant
- Low water absorptions
- Good solvent resistance
- High-pressure steam resistance and more.
With their excellent characteristics, these PPS parts and components that are made from injection molding are highly demand in different fields of applications especially for the following:
Chemical processing. To make fiber extrusions, for coating, etc.
Medical devices. PPS is also highly applicable to making rollers, bearing for micro-surgery instruments, robotic surgical tool bushing, prosthetic device bushing, and so on.
Industrial. To make parts and components
Automotive. This PPS is also widely used for automotive for under hood components, electrical and electronics, brake systems, and more.
Electrical and electronics. To make a socket and connectors
Oil and gas. PPS is also perfect for protective coatings, and linings, to meet the needs of pipes, and metallic components.
Not just that it is also applicable to aerospace, energy, transportation, consumer goods, and many more.
Thermal Properties. PPS is known as a high-temperature specialty polymer and most of them pass the UL94V-0 standard. It has the ability to resist up to 260 degrees Celsius in the short but 200 degrees Celsius in the long time.
Chemical Properties. These PPS parts and components can resist chlorinated aliphatic compounds, ketones, alcohols, liquid ammonia, esters, and more.
Mechanical Properties. Polyphenylene sulfide offers high rigidity, low degradation, and high strength. Not just that, it is also excellent in fatigue endurance, lower elongations, etc.
We use a wide range of molding services in order to meet the exact request and your needs. The common for this are the following below:
- PPS over-molding
- PPS Injection molding consulting
- New product design and development
- PPS injection molding
- PPS welding
- Post molding operations
- Insert molding, etc.