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 Page 1


Synthetic 
fibers and 
plastics
Page 2


Synthetic 
fibers and 
plastics
Index 
fibres
• Types of fibers
• Monomers and polymers
• Polymerization
• Polymers may be natural or synthetic
Plastic products
• Raw materials for synthetic
Page 3


Synthetic 
fibers and 
plastics
Index 
fibres
• Types of fibers
• Monomers and polymers
• Polymerization
• Polymers may be natural or synthetic
Plastic products
• Raw materials for synthetic
Index
Synthetic fibres
• Rayon
• Nylon
• Polyester
• Acrylic
• Lycra or Spandex
Plastics
• Types of plastics
• Plastics and there uses
Page 4


Synthetic 
fibers and 
plastics
Index 
fibres
• Types of fibers
• Monomers and polymers
• Polymerization
• Polymers may be natural or synthetic
Plastic products
• Raw materials for synthetic
Index
Synthetic fibres
• Rayon
• Nylon
• Polyester
• Acrylic
• Lycra or Spandex
Plastics
• Types of plastics
• Plastics and there uses
Types of fibers
Natural 
fibers
Synthetic 
fibres
Page 5


Synthetic 
fibers and 
plastics
Index 
fibres
• Types of fibers
• Monomers and polymers
• Polymerization
• Polymers may be natural or synthetic
Plastic products
• Raw materials for synthetic
Index
Synthetic fibres
• Rayon
• Nylon
• Polyester
• Acrylic
• Lycra or Spandex
Plastics
• Types of plastics
• Plastics and there uses
Types of fibers
Natural 
fibers
Synthetic 
fibres
Natural and synthetic
Synthetic fibres are man-made 
fibres. Synthetic fibres are 
made from different 
chemicals, hence each kind of 
synthetic fibres have their own 
properties. Synthetic fibres are 
more in length and are long 
lasting. The only limitation in 
synthetic fibres is that they are 
poor absorbents of moisture 
and they catch fire easily
Natural 
fibers come 
from natural 
sources like 
plants and 
animals.

FAQs on Synthetic Fibers and Plastics - PPT, Science, Class 8

1. What are synthetic fibers?

Ans. Synthetic fibers are man-made fibers that are chemically produced and are not found naturally. These fibers are made from chemicals and are synthesized in the laboratory. Nylon, polyester, and acrylic are some examples of synthetic fibers.

2. What is the difference between synthetic fibers and natural fibers?

Ans. Synthetic fibers are man-made fibers that are chemically produced, whereas natural fibers are obtained from plants and animals. Natural fibers such as cotton, wool, and silk are biodegradable, while synthetic fibers are non-biodegradable. Synthetic fibers are more durable, resistant to wrinkles and shrinkage, and are cheaper than natural fibers.

3. What are plastics?

Ans. Plastics are synthetic materials made from polymers that can be molded into various shapes and sizes. Plastics are non-biodegradable and are widely used in packaging, construction, electronics, and many other industries. They are versatile, lightweight, and durable, making them a popular choice for many applications.

4. How are synthetic fibers and plastics harmful to the environment?

Ans. Synthetic fibers and plastics are non-biodegradable and take hundreds of years to decompose. When they are disposed of improperly, they can end up in landfills, oceans, and other natural habitats, causing serious environmental problems. They can harm wildlife, pollute water sources, and contribute to climate change.

5. What are some alternatives to synthetic fibers and plastics?

Ans. Some alternatives to synthetic fibers and plastics include natural fibers such as cotton, wool, and silk, and eco-friendly materials such as bamboo, hemp, and organic cotton. Biodegradable plastics made from plant-based materials such as corn starch and cellulose are also becoming more popular as a sustainable alternative to traditional plastics. Recycling and upcycling materials can also help reduce the negative impact of synthetic fibers and plastics on the environment.

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