PP PE pet and other plastic particle applications
Polypropylene (PP)Structure
Sexuality
Very light plastic with a density of only 0.9g/cm3
Processing properties without preheating and drying
Advantage
1. Easy to dye
2. Good moisture resistance
3. Good chemical resistance
4. High hinge characteristics
5. Impact resistance
Deficiency
1. Complex aliens are not easy to squeeze
2. Easily decomposed by ultraviolet rays
3. Not easy to join
4. Easy to oxidize
Use
Water pipe, film, tape, wire shielding material, container, car bumper, instrument panel, hinge
Polyethylene (PE)
Structure
Sexuality
The LDPE tolerance is 0.
910~0. 925g/cm3
MDPE tolerance is 0.926~0.940g/cm3
HDPE tolerance is 0.941~0.965g/cm3
Advantage
1. Soft and non-toxic
2. Easy to dye
3. Impact resistance (-40°C~90°C)
4. Moisture resistance
5. Chemical resistance
Deficiency
1. Not easy to extrude
2. High coefficient of thermal expansion
3. Not easy to fit
4. Poor temperature resistance
Use
Housewares, insulators, hoses, tapes, films, containers
Saturated polyester ethyl terephthalate (PET)
Structural formula
Properties: It is a crystalline thermoplastic plastic with a clear melting point of 245~260℃. It has excellent mechanical properties and resistance to friction and abrasion at room temperature.
can.
However, due to its low Tg, its thermomechanical properties are poor. Generally, glass fibers are added to improve heat resistance and mechanical properties.
Advantages 1. Good size stability
2. Excellent mechanical properties
3. Small potential change
4. Good electrical characteristics
5. Excellent weather resistance
6. Resistant to organic flux, oil and weak acid
7. Good gas and water resistance
8. Self-extinguishing
Disadvantages 1. The mechanical properties are directional and fluid
2. Slower crystallization speed
3. Strict requirements for drying and processing conditions
Use Electronic appliances: breakers, rectifiers, spools, hair dryer vents, spool lampshades
Automobiles: Denso components, mudguards, brake handles
Industrial parts: cooling fan handles.
If you want to know more about it please do not hesitate to
contact me. WhatsApp:+86-15966835076.
