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(vi)  It is wrinkle  resistant.

            (vii) It is moth, oil and chemical resistant.
            Uses of Acrilan :

            (i)  It is used for manufacture of yarn.
            (ii)  It is used for manufacture of blankets and

                 shawls which are not of very good quality
                 as it can easily fuzz and does not insulate
                 the body of a person well.                            Shawls made of acrylic    Blankets made of acrylic


            Activity 2
            Write a note on “Advantages and disadvantages of synthetic fibres”.
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            (f) Plastics  :  Plastics  are  polymers.  Several          (iv) Insulation  :  They  serve  as  a  good
            different  properties  of  synthetic  plastic                   insulator that's why electric wires are
            include:                                                        coated with them to prevent shocks.

               (i)   Chemical resistance : Synthetic plastics       Types of plastics : Plastics can be of two types
                    are not affected by acids and alkalies.         on the basis of their reaction towards heat :
               (ii)  Weather  resistance  :  They  are  not         (i)  Thermoplastic :
                    affected by weather conditions.                       It melts on its exposure to heat.

               (iii) Tensile strength : They have a very high             It can be easily remoulded.
                    tensile strength.







                proof.




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