Question

how do plastics differ from natural fibres with respect to (a)-chemical resistance B)-weather resistance (c) tensile strength (d) insulation​

Answer 1

Answer:

Explanation:

(a)chemical resistance

plastic materials are highly resistant to strong chemicals like acid and alkalis as compared to natural plastics like cotton, wool, silk etc.

(b)weather resistance

synthetic plastics are not biodegradable i.e,they do not weather unlike natural plastics such as cotton and wool.

(c)tensile strength

synthetic plastic can withstand alot of force without getting broken.

(d)insulation

synthetic plastic are far better with reapect to heat and electrical insulation. hence they are used to cover electric wires rather than cotton or silk.

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Answer 2

Answer:

1) Natural fibers have weak chemical resistance whereas plastics have better chemical resistance. 3) Natural fibers are good thermal conductors whereas plastics are bad thermal conductors.