PET (Polyethylene Terephthalate):
- Description: PET is a polymer of terephthalic acid and ethylene glycol, known for its high strength and fabric wearing properties.
- Density: Density increases with crystallization, ranging from 1.33 g/cm^3 in the amorphous state to 1.38~1.41 g/cm^3 in the fiber form.
- Properties: PET is highly crystalline, with a high melting temperature of 257~265°C. It is insoluble in most solvents but soluble in certain highly corrosive organic solvents. PET fiber is stable to weak acids and bases.
- Applications: Mainly used in synthetic fibers, blending with cotton, wool, and linen for textiles, and in various industrial applications such as filter cloths, tire cords, and packaging containers.
PE (Polyethylene):
- Description: PE is commonly used in daily life for products like plastic bags, films, and reagent bottles.
- Properties: It is resistant to organic solvents and corrosion but not to oxidizing acids like nitric acid. The degree of crystallization affects its transparency and melting temperature.
- Applications: Used in various forms such as films, bottles, and buckets due to its versatility and resistance properties.
PP (Polypropylene):
- Description: PP is a semi-crystalline thermoplastic known for its high impact resistance and mechanical strength.
- Density: Polypropylene has the smallest density among all plastics, approximately 0.90 g/cm^3.
- Properties: PP is resistant to various organic solvents, acids, and alkalis. It is commonly used in construction for products like pipes and sanitary ware.
- Applications: Widely used in industry for items like plastic reagent bottles and even Australian coins.
PVC (Polyvinyl Chloride):
- Description: PVC is widely used in construction due to its high mechanical strength and chemical stability.
- Density: Rigid PVC has a density of 1.38~1.43 g/cm^3.
- Properties: Known for its flame retardancy, PVC releases toxic gases during combustion.
- Applications: Commonly used in construction for its flame-retardant properties but also utilized in various other applications.
ABS (Acrylonitrile Butadiene Styrene):
- Description: ABS is a copolymer composed of acrylonitrile, butadiene, and styrene, known for its high strength and toughness.
- Properties: ABS has excellent impact resistance and mechanical properties, making it suitable for engineering plastics. It can be processed through various molding methods.
- Applications: Used in engineering materials, household appliances, and as a metal replacement due to its good resistance to oil, acid, alkali, and chemical reagents.
HDPE (High-Density Polyethylene):
- Description: HDPE is a highly crystalline, non-polar thermoplastic known for its resistance to chemicals and excellent electrical properties.
- Properties: HDPE is resistant to most chemicals, non-hygroscopic, and has good water vapor resistance. It also exhibits excellent impact resistance, even at low temperatures.
- Applications: Commonly used in packaging, wires, cables, and various industrial applications due to its chemical resistance and electrical properties.
Understanding the differences between these plastics helps in selecting the appropriate materials for specific applications. Henan GREEN PLASTIC offers plastic reagent bottles made from PP, HDPE, LDPE, PC, PETG, and FPA.
