It is present in bottles, containers, packaging, and other commonplace objects. Plastic is both recyclable and multifunctional. By recycling the plastics you use every day, you can lessen your environmental effect and help companies save money. Nevertheless, not all polymers are made equal. The number included within the recycling symbol on plastic containers, known as an SPI Code, gives a plethora of information on the safety and biodegradability of each type of plastic. Understanding these codes will enable you to properly recycle old goods.
For fast reference, below is a brief overview of the various codes
- The chemical compound Polyethylene Terephthalate (PETE or PET)
- Extremely Dense Polyethylene (HDPE)
- Polyvinyl Chloride (P or PVC)
- The material Low-Density Polyethylene (LDPE)
- Polypropylene (PP)
- Polystyrene (PS)
- Miscellaneous Plastics
- Now let’s explore each of the seven plastic kinds in further detail.
PETE or PET (Polyethylene Terephthalate)
Used for the first time in 1940, PET polymers are often used in beverage bottles, containers for perishable foods, and mouthwash. Clear PET polymers are usually regarded as harmless, however, they can absorb the aromas and tastes of stored foods and drinks. Additionally, they can be hazardous if exposed to heat, such as when a water bottle is left in a hot car. This can cause antimony to leach from the plastic into the liquid over time. These plastics are easily recyclable, and most recycling facilities accept them, so disposing of them responsibly is simple. Recycled PET plastics are used to create carpet, furniture, and fiber for winter clothing.
High-Density Polyethylene (HDPE)
Karl Ziegler and Erwin Holzkamp invented HDPE in the 1950s, making it one of the newest forms of plastic. HDPE granules traders is the most recyclable plastic and the FDA generally considers it safe for food contact. Due to its internal structure, HDPE is significantly stronger than PET and is safe for reuse. It may also be used on objects that will be stored or utilized outside, as it is resistant to both cold and hot temperatures. Products made from HDPE have a very minimal risk of leaching into meals or drinks. This plastic can be found in milk jugs, yogurt containers, cleaning product containers, body wash bottles, and similar containers. Additionally, many children’s toys, park seats, planters, and pipes are produced from HDPE. Pens, plastic timber, plastic fences, picnic tables, and bottles are created from recycled HDPE.
V or PVC (Polyvinyl Chloride)
One of the earliest polymers, it was discovered in 1838. Commonly referred to as vinyl, PVC is a plastic that is initially stiff but becomes flexible when plasticizers are added. Rarely recycled PVC is found in credit cards, food packaging, plumbing pipes, tiles, windows, and medical equipment. PVC plastics include hazardous compounds that have been linked to several illnesses, including bone and liver disorders, as well as developmental problems in children and newborns. Keep PVC away from food and beverages. Specialized programs recycle PVC into, among other things, flooring, paneling, and roadside gutters.
Low-Density Polyethylene (LDPE)
LDPE has the simplest structure of all polymers, making it the easiest to manufacture. This is why it is commonly used for a variety of bag styles. In addition to plastic wrap, frozen food containers, and squeeze bottles, LDPE is a particularly hygienic and secure plastic used in a variety of common home goods. Increasing numbers of recycling systems are beginning to accept LDPE plastics, however, recycling is still relatively challenging. Recycled LDPE is used to produce garbage cans, paneling, furniture, flooring, and bubble wrap, among other products.
PP (Polypropylene)
PP was discovered in 1951 in the petroleum business; it is tough, durable, and resistant to high temperatures. Tupperware, automotive parts, thermal coats, yogurt containers, and even disposable diapers are all made of this safe plastic. Although it may be recycled, it is often discarded. It is recycled into durable objects such as pallets, ice scrapers, rakes, and battery cables. Many recycling programs take polypropylene (PP).
PS (Polystyrene)
PS, sometimes known as Styrofoam, was accidentally discovered in Germany in 1839. PS, an immediately recognized plastic is found in throwaway tableware, drinking cups, insulation, packaging materials, and egg cartons. Because it is inexpensive and simple to produce, it is ubiquitous. Styrofoam is known for seeping toxic chemicals, especially when heated, and for its limited recyclability, hence it is dangerous. Similar to PP, it is often discarded; however, certain recycling programs may accept it. PS may be recycled into a variety of products, including insulation, school materials, and license plate frames.
Miscellaneous Plastics
Seven is the SPI code for any plastics not included in the other six categories. These polymers include the harmful chemical biphenyl-A or BPA, despite their presence in popular products such as eyewear, computer casings, nylon, compact discs, and baby bottles. Not only are these polymers hazardous, but Seven is the SPI code for any plastics not included in the other six categories. These polymers include the harmful chemical biphenyl-A or BPA, despite their presence in popular products such as eyewear, computer casings, nylon, compact discs, and baby bottles. Not only are these polymers hazardous, but they are also incredibly difficult to recycle since they do not break down quickly. When accepted by recycling factories, Plastic #7 is recycled largely into plastic lumber and specialty items.
