The PFQAC Plastics Science series will explore the different plastic types and their characteristics. Below is a high-level summary of the individual articles to follow.
Polyethylene Terephthalate (PET or PETE) - #1
- Characteristics: Clear, strong, lightweight, gas/moisture barrier
- Common uses: Beverage bottles, food containers, synthetic fibers
- Recyclability: Highly recyclable, commonly accepted
- Recycled into: Fleece, fiber, new containers
High-Density Polyethylene (HDPE) - #2
- Characteristics: Stiff, strong, resistant to chemicals/moisture
- Common uses: Milk jugs, shampoo bottles, detergent containers
- Recyclability: Easily recycled, widely accepted
- Recycled into: Plastic lumber, recycling bins, pipes
Polyvinyl Chloride (PVC) - #3
- Characteristics: Strong, durable, good chemical resistance
- Common uses: Pipes, siding, flooring, medical devices
- Recyclability: Rarely recycled, difficult to process
- Environmental concerns: Can release toxic chemicals
Low-Density Polyethylene (LDPE) - #4
- Characteristics: Flexible, tough, good moisture barrier
- Common uses: Plastic bags, squeeze bottles, flexible lids
- Recyclability: Limited recycling acceptance
- Recycled into: Garbage can liners, floor tiles
Polypropylene (PP) - #5
- Characteristics: Heat resistant, strong, good chemical resistance
- Common uses: Food containers, auto parts, bottle caps
- Recyclability: Moderately recyclable, acceptance growing
- Recycled into: Ice scrapers, rakes, battery cases
Polystyrene (PS) - #6
- Characteristics: Lightweight, insulating, rigid or foamed
- Common uses: Foam cups, takeout containers, packaging
- Recyclability: Rarely recycled, difficult to process
- Environmental concerns: Breaks into small pieces, persists in environment
Various Other Plastics - #7
- Includes: Polycarbonate, acrylic, nylon, bioplastics
- Characteristics: Vary by specific type
- Common uses: Water bottles, sunglasses, electronics
- Recyclability: Generally not recyclable through standard programs