List and explain four properties of plastics. Give one use of plastics linked to each of these properties.
Answers
Answer:
Plastic is material consisting of any of a wide range of synthetic or semi-synthetic organic compounds that are malleable and so can be molded into solid objects.
Plasticity is the general property of all materials which can deform irreversibly without breaking but, in the class of moldable polymers, this occurs to such a degree that their actual name derives from this specific ability.
Plastics are typically organic polymers of high molecular mass and often contain other substances. They are usually synthetic, most commonly derived from petrochemicals, however, an array of variants are made from renewable materials such as polylactic acid from corn or cellulosics from cotton linters.[2]
Due to their low cost, ease of manufacture, versatility, and imperviousness to water, plastics are used in a multitude of products of different scale, including paper clips and spacecraft. They have prevailed over traditional materials, such as wood, stone, horn and bone, leather, metal, glass, and ceramic, in some products previously left to natural materials.
In developed economies, about a third of plastic is used in packaging and roughly the same in buildings in applications such as piping, plumbing or vinyl siding.[3] Other uses include automobiles (up to 20% plastic[3]), furniture, and toys.[3] In the developing world, the applications of plastic may differ—42% of India's consumption is used in packaging.[3]
Plastics have many uses in the medical field as well, with the introduction of polymer implants and other medical devices derived at least partially from plastic. The field of plastic surgery is not named for use of plastic materials, but rather the meaning of the word plasticity, with regard to the reshaping of flesh.
Answer:
Explanation:1-resistance to corrosion and chemicals
Use-auto interior panels
2-low electrical and thermal conductivity
Use-electronic enclosures
3-good durability
Use-window frames and sunglasses
4-resistant to water
USE-ID Card
5-low toxicity
Use-water bottles
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