These changes in the material have a direct impact on its recyclability. Thus, the elements of its composition will determine how possible it is to recover material from these plastics to reuse it and establish a less polluting consumption chain.
It is used in beverage bottles such as soft drinks or water, as well as other light packaging such as food packages, cream jars and other pharmaceutical uses. Its second life is usually new bottles, textiles for clothing, carpets, models, tarpaulins and nautical sails or yarns and ropes. Its recyclability level is 1 and the toxic substances it contains are antimony, formaldehyde, acetaldehyde and phthalate. It accounts for 11% of plastic waste on the planet.
It is used in many non-transparent containers such as milk bottles, detergents, food packages and motor oil. Its use after recycling is usually for new packaging, boxes, flower pots, garbage containers, toys, pipes, pieces of urban and garden furniture or new detergent bottles. Although its recyclability level is 1, it is a more resistant material than PET and contains antimony as a toxic substance. It accounts for 14% of plastic waste in the environment.
Types of transparent plastics
Plastic is a material with which we live in our daily lives, but we do not know many things about it. It is true that it facilitates the creation of packaging and makes it possible to reduce the price of products compared to other materials, but its environmental impact is immense and highly damaging.
One of the great challenges in the scientific world today is to discover a material that offers the benefits of plastic, but does not cause as many problems as plastic. While this research is being done, let’s get to know it in depth: What is plastic? How many types exist? Which are the least polluting? In this way, we will try to reduce the environmental impact we generate with its consumption.
It is similar to HDPE. It is often used in bags of various types, such as garbage bags, dry cleaning bags, frozen food bags, and can also be found in some clothing and furniture. It is recycled into grocery bags.
This type of plastic is present in furniture, toys, automobiles, straws, caps or rigid packaging. It has very good qualities, because it resists heat and is a barrier against humidity. When recycled, one of its new uses will be the manufacture of battery boxes for cars.
Pet plastic examples
Monomers are the building blocks of the structure of plastics (e.g. ethylene). They are simple molecules (carbon and hydrogen). The union of many monomers constitutes a polymer (e.g. polyethylene).
It is produced through terephthalic acid and ethylene glycol by polycondensation. There are two types: textile grade and bottle grade; for bottle grade it must be post-condensed, and there are different colors for these uses.
It is a thermoplastic manufactured from ethylene (made from ethane, one of the components of natural gas). It is very versatile and can be transformed in different ways: injection, blow molding, extrusion or rotational molding.
It is produced from natural gas. Like HDPE, it is highly versatile and can be processed in different ways: injection, extrusion, blow molding and rotational molding. Its transparency, flexibility and economy make it present in a variety of containers, alone or in conjunction with other materials and in a variety of applications. Advantages
The 7 types of plastics
Polypropylene (PP)Polypropylene is a thermoplastic derived from propylene gas. Often, this plastic is processed into fibers.polypropylene is the mass-produced plastic with the lowest density and floats on water. Its stability and resistance to chemicals is similar to that of low-density polyethylene, however, it can be used at higher temperatures. Since polypropylene is odorless and does not irritate the skin, it is widely used in the food and pharmaceutical industries.Uses:Food packaging, household appliances, automobile parts, construction, garden furniture, artificial turf, suitcase casings, medical devices, plastic bags, etc.
Polyvinyl chloride (PVC)Polyvinyl chloride is produced from chloroethene gas, known as vinyl chloride. This rather rigid plastic can be made elastic by adding plasticizers. Phthalates used as plasticizers in PVC can make up to 70 % of the material. PVC is a highly fire-resistant insulating plastic, making it an ideal material in the construction industry, particularly for pipes and window profiles. On the other hand, PVC is far from harmless: not only does it consist of carcinogenic raw materials and unhealthy phthalates, but it also releases toxic dioxins during combustion.Uses:Floor coverings, drainage pipes, window profiles, gaskets, vinyl discs, floats, etc.