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Plastic is one of the most important and widely used materials in modern life. From household products to industrial components, plastic is an indispensable element. Below is an overview of the most common plastic types and their typical applications.
1. Polyethylene (PE)
Polyethylene is the most widely used plastic in the world. It is divided into 3 main types:
| LDPE (Low-Density Polyethylene) | HDPE (High-Density Polyethylene) | LLDPE (Linear Low-Density Polyethylene) | |
| Characteristics | – High toughness and flexibility – Good corrosion resistance – Transparent and clear – Low manufacturing cost | – High rigidity and strength – Ability to withstand heavy loads – Good chemical and corrosion resistance – Dimensional stability with minimal deformation | – Good tensile strength and elongation – Good printability, adhesion, and weldability – Low cost |
| Application | It is commonly used for plastic bags, product wrapping, pipes, and household items. | Used for bottles, containers, water pipes, and industrial products. | Commonly used for bags, wraps, storage tanks, and other household items. |
2. Polypropylene (PP)
Polypropylene is a plastic with high rigidity, strength, and heat resistance. It is widely used in:
- Manufacturing of containers, bottles, pipes, and automotive parts
- Household products such as kitchenware and children’s toys
- Medical products like IV tubes and prosthetic body parts
Characteristics:
- High rigidity and strength
- Good heat resistance (140-170°C)
- Excellent insulation and thermal properties
- Good chemical resistance
3. Polyvinyl Chloride (PVC)
PVC is one of the most common and versatile plastics. It can be rigid or flexible, and is used in:
- Water pipes, flooring, window frames
- Electrical cable coatings, medical blood bags
- Children’s toys, suitcases, floor liners
Characteristics:
- Can be made rigid or flexible
- Good insulation and thermal properties
- Excellent chemical and weather resistance
- Easy to process and shape
4. Polystyrene (PS)
Polystyrene can be rigid or foam, and is widely used for:
- Food storage containers
- Office supplies and children’s toys
- Thermal and acoustic insulation materials
Characteristics:
- Rigid and brittle
- Transparent and glossy
- Good thermal and acoustic insulation properties
- Low cost
5. Polyester (PET)
Polyester is a plastic commonly used to produce:
- Bottles, water and food containers
- Polyester fabric for clothing and furnishings
- Automotive components and electronics
Characteristics:
- High strength and rigidity
- Good chemical and corrosion resistance
- Lightweight and easy to process
- Good printability and adhesion
The above are the most common plastic types and their typical applications. Each type has its unique properties and is utilized in many different areas of life and industrial production.
