Man's physical universe

xanabras

NATURAL AND SYNTHETIC RUBBERS 715

5. What are the functions and advantages of the accelerators and the antioxidants

used in rubber compounding?

6. Discuss the various types of synthetic rubber as to (a) the raw materials from

which they are made, (b) their properties, and (c) their uses.

7. Why are some types of synthetic rubber more resistant to chemicals, solvents,

heat, and light than is natural rubber?

8. What is the usual pattern for the development of synthetic chemical industries?

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