Polypropylene (PP) is a type of thermoplastic polymer that is commonly used in a wide range of applications due to its excellent mechanical
and chemical properties, as well as its high heat resistance. The molding and processing of PP can be achieved through several methods, including
injection molding, extrusion, blowing, and thermoforming, among others.The molding and processing methods of PP polypropylene include:
1. Injection molding
Injection molding is to inject heated and molten PP plastic into a mold, and the plastic is shaped into the desired shape through the pressure
and cooling of the mold. Injection molding can produce high-precision, high-complexity, high-value-added products and is often used to
produce plastic products.
2. Extrusion molding
Extrusion molding is to extrude heated and molten PP plastic through an extrusion head, and the extrudate is formed into the required shape
through molds of different shapes. Extrusion molding is suitable for the production of large-volume products such as straight tubes and
special-shaped materials.
3. Blow molding
Blow molding is to first inject heated and molten PP plastic into the blow mold, and then use high-pressure air to extrude and expand the plastic
into the desired shape. Blow molding is suitable for producing hollow containers and irregularly shaped products.
4. Calendering and forming
Calendering is the process of pressing heated and molten PP plastic through a mold to form it. It is often used to produce plastic sheets and
thin-walled blanks.
5. Thermoforming
Thermoforming is to heat PP plastic sheets or blanks into a soft state and form them along the mold through stamping or negative pressure.
It is suitable for producing various thin-walled plastic products.
Polypropylene raw material PPH-HP 500N
PP polypropylene is an engineering plastic with excellent performance and has many advantages, such as light weight, corrosion resistance,
wear resistance, high temperature resistance, easy processing, etc. Therefore, it has a wide range of applications in various industries, including
but not limited to the following aspects:
1. Packaging industry: PP polypropylene is widely used in food packaging, garbage bags, pharmaceutical packaging and other fields.
2. Auto parts: PP polypropylene can be used to manufacture automobile dashboards, door interior panels, body panels, air filter housings and other parts.
3. Electronic and electrical appliances: PP polypropylene is widely used in battery casings, electronic switches, electrical appliance casings,
mobile phone cases and other fields.
4. Medical equipment: PP polypropylene can be used to manufacture medical equipment, surgical instruments, infusion bottles, syringes
and other medical supplies.
5. Building decoration: PP polypropylene can be used to make various building decoration materials, such as wall panels, floors, ceilings, etc.,
and can also be used to make parts such as pools and water pipes.
6. Textile products: PP polypropylene fiber can be used to make various textile products, such as gift bags, yoga mats, sportswear, etc.
In summary, PP polypropylene has a wide range of application fields and has played a positive role in promoting the development of various
industries. At the same time, with the continuous advancement of technology and changing needs, the application fields of PP polypropylene
will continue to expand.