Which of the following is not an example of polymer?
Terylene (or dacron) is not an example of addition polymer. It is a condensation polymer of ethylene glycol and terephthalic acid.
What is not an example of a polymer?
Examples of materials which are not polymers include: Elements. Metals. Ionic compounds, such as salt.
What is an example of polymer?
Examples of synthetic polymers include nylon, polyethylene, polyester, Teflon, and epoxy. Natural polymers occur in nature and can be extracted. They are often water-based. Examples of naturally occurring polymers are silk, wool, DNA, cellulose and proteins.
Is cotton a natural polymer?
Cotton consists of a long chain of glucose molecules and thus occurs naturally in plants and thus it is composed of pure cellulose which is the naturally occurring polymer.
What is the definition of a natural polymer?
Natural polymers are defined as materials that widely occur in nature or are extracted from plants or animals. Natural polymers are essential to daily life as our human forms are based on them.
What type of polymer is wood?
cellulose
Is wood a polymer or ceramic?
Wood is a composite material made from lignin and cellulose. Wood makes use of a lignin matrix and cellulose fibers to form a polymer composite. The lignin holds the cellulose compressively in place so that the cellulose fibers can carry tensile loads.
What is a polymer used for?
Uses of polymers Polymers are used in almost every area of modern living. Grocery bags, soda and water bottles, textile fibers, phones, computers, food packaging, auto parts, and toys all contain polymers. Even more-sophisticated technology uses polymers.
Is glass a polymer or ceramic?
Glass can be called as a type of ceramic. Glass is known to be a non-crystalline material. It is an amorphous solid, which means that it has no long -range order of positioning of its molecules.
What is the classification of materials?
Traditionally the three major classes of materials are metals, polymers, and ceramics. Examples of these are steel, cloth, and pottery. These classes usually have quite different sources, characteristics, and applications.
What is the strongest item in the world?
The World’s Strongest Stuff
- Diamond. Unmatched in its ability to resist being scratched, this much-loved gemstone ranks the highest in terms of hardness.
- Graphene.
- Spider silk.
- Carbon/carbon composite.
- Silicon carbide.
- Nickel-based super-alloys.