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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...
- Plasticity
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.
Plastistone is the umbrella term for rocks that have fused with plastic. At the end of 2023 there were numerous sightings of green-colored plastic seemingly melted to rocks. [1] It forms from plastic that floats through the ocean and melts to the rocks over time. [2]
Plastiglomerate is a rock made of a mixture of sedimentary grains, and other natural debris (e.g. shells, wood) that is held together by plastic. [1] It has been considered a potential marker of the Anthropocene, an informal epoch of the Quaternary proposed by some social scientists, environmentalists, and geologists. [2]
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.
22 Ιουλ 2015 · Find out how littered plastic near campfires has melded with rocks and other debris to form a new marker in the geologic record!
28 Ιαν 2015 · Plastic Age: How it's reshaping rocks, oceans and life. The ultimate fate of waste plastic is hazy – but we know future geologists will find traces of a fleeting era written in the stones.
