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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...
- Plastic pollution
Plastic pollution is the accumulation of plastic objects and...
- Plasticity
Plastic pollution is the accumulation of plastic objects and particles (e.g. plastic bottles, bags and microbeads) in the Earth's environment that adversely affects humans, wildlife and their habitat.
22 ώρες πριν · Plastics are persistent large-scale pollutants, and plastic debris (such as bottles, straws, containers, and plastic wrap) and particulates have been found in many environmental niches, from Mount Everest to the bottom of the sea.
25 Απρ 2023 · The material is made from fossil fuels such as crude oil, which are transformed via heat and other additives into a polymer. In 2019, plastics generated 1.8 billion metric tonnes of greenhouse gas emissions – 3.4 per cent of the global total. Where is all this plastic coming from?
15 Μαΐ 2018 · What are microplastics? What about a garbage patch? This glossary helps demystify plastic pollution. By Elizabeth Atalay, Laura Parker, and Heidi Schultz. May 15, 2018. • 8 min read. This story...
17 Οκτ 2024 · In this article a brief review of the essential properties of plastics is provided, followed by a more detailed description of their processing into useful products and subsequent recycling. For a fuller understanding of the materials from which plastics are made, see chemistry of industrial polymers.
Two main processes are used to produce plastics – polymerisation and polycondensation – and they both require specific catalysts. In a polymerisation reactor, monomers such as ethylene and propylene are linked together to form long polymer chains.
