Αποτελέσματα Αναζήτησης
Plastic - Wikipedia. Household items made of various types of plastics. Plastics are a wide range of synthetic or semi-synthetic materials that use polymers as a main ingredient. Their plasticity makes it possible for plastics to be molded, extruded or pressed into solid objects of various shapes.
- Plasticity
In physics and materials science, plasticity (also known as...
- Synthetic
Some familiar household synthetic polymers include: Nylons...
- Plasticity
17 Οκτ 2024 · Many of the chemical names of the polymers employed as plastics have become familiar to consumers, although some are better known by their abbreviations or trade names. Thus, polyethylene terephthalate and polyvinyl chloride are commonly referred to as PET and PVC, while foamed polystyrene and polymethyl methacrylate are known by their ...
Before the birth of plastic, we were using wood, metal, glass and ceramic, and animal derived materials such as horn, bone and leather. For storage purpose, mouldable clays (pottery) mixed with glass were used which meant the containers were often heavy and fragile.
15 Μαΐ 2018 · PET, or polyethylene terephthalate, is one of the most widely used polymers, or plastics. It is a clear, strong and lightweight plastic belonging to the polyester family. It is used to make...
16 Μαΐ 2022 · Plastics are (mostly) synthetic (human-made) materials, made from polymers, which are long molecules built around chains of carbon atoms, typically with hydrogen, oxygen, sulfur, and nitrogen filling in the spaces.
Plastics are made from natural materials such as cellulose, coal, natural gas, salt and crude oil through a polymerisation or polycondensation process.
Plastics are made from natural materials such as cellulose, coal, natural gas, salt and crude oil through a polymerisation or polycondensation process.
