Properties and Uses of Polyester and Acrylic

The video tutorial covers synthetic fibers, focusing on polyester and acrylic. It explains polyester as a polymer made of small units containing ester groups, highlighting its strength, durability, and hydrophobic nature. Polyester is used in clothing, PET bottles, and more. The tutorial then introduces acrylic, another synthetic fiber made from acrylonitrile, known for its warmth, lightness, and wool-like feel. Acrylic is used in making gloves, blankets, and jackets.

What is polyester primarily made up of?

• Metallic compounds

• Natural fibers

• Many small units

• Single large unit

What is the full form of PET?

• Polyethylene Ethyl Terephthalate

• Polyester Ethylene Terephthalate

• Polyester Ethyl Terephthalate

• Polyethylene Terephthalate

Which of the following is NOT a property of polyester?

• Chemical resistant

• Hydrophilic

• Strong

• Durable

Which of the following is a property of polyester?

• Absorbs water

• Quick drying

• Easily shrinks

• Weak structure

What is a common use of PET bottles?

• Storing cold drinks

• Manufacturing clothes

• Creating mats

• Making ropes

Which of the following is a use of polyester?

• Manufacturing natural fibers

• Creating wool-like feeling

• Making ropes

• Producing metallic compounds

What is acrylic made from?

• Acrylonitrile

• Natural fibers

• Polyester

• Polyethylene

Which property makes acrylic suitable for winter clothing?

• Hydrophobic nature

• Chemical resistance

• Warmth

• Lightweight

Which of the following is NOT made from acrylic?

• Blankets

• Shawls

• Jackets

• PET bottles

What is a common characteristic of both polyester and acrylic?

• Weak structure

• Hydrophilic nature

• Chemical resistance

• Natural origin