Question

The hard plastic covers of telephones are made by polymers of

Answer 1

Answer:

StyleBaby Fun

Plastic is the generic name for a wide range of synthetic or semi-synthetic compounds that are used in almost everything today.

Due to plastic being relatively inexpensive and easy to produce they have replaced other traditional materials (wood, stone, horn, bone, leather, metal, glass, and ceramic) in the manufacture of many products including bottles, furniture, bags, toys, food containers and mobile phone covers.

There are essentially three types of plastic phone cases. These are soft plastic cases, hard plastic cases, and hybrid cases. In this article, we will be looking at the three different types of plastic cases and discussing the pros and cons of each material.

Hard Plastic Cases  

Hard plastic phone cases are either made up of polycarbonate, hard polyurethane or polypropylene.

Polycarbonate material is the strongest amongst the three, with this material being used in the manufacture of items like spectacle glasses, bulletproof windows and compact disks.  

Polyurethane, on the other hand, is not as strong as polycarbonate plastic and is usually used in the production of packaging materials, furniture and car seats.

Lastly, polypropylene plastic is the most commonly available hard plastic. It is used in the manufacture of candy boxes, containers, bottles, laboratory equipment and textiles.

Explanation: