Question

the bristles and handles of toothbrush are made from synthetic material. what is the difference between two types​

Answer 1

Answer:

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Explanation:

Explain the differences between thermoplastics and thermosetting plastics.

      Ans. Differences:

Thermoplastics Thermosetting plastics

1.  These are the plastics that can be deformed easily on heating and can bend also.

2.  They are used for manufacturing cars, toys and containers. 1.  These are the plastics that cannot be softened by heating once they are moulded.

2.  Bakelites are used for making electrical switches, handles for various utensils etc.

The handle and the bristles of the toothbrush should not be made of the same material as the handle should be hard to give a smooth grip and bristle should be soft so that it doesn’t harm the gum of the teeth.

Answer 2

Answer:

The bristles and handle of a tooth brush is made of different materials. The bristles of a tooth brush should be soft and flexible so that they can not harm the gums. so the  materials used for making bristles of a tooth brush should be soft. Therfore nylon fibres are used to make the bristles of tooth brush. On the other hand the handle of tooth brush should be strong. so materials used for making handles should be hard. Therefore hard plastic is used for making handles of a tooth brush.

Explanation: