Diphenylamine is added to rubber to_________________?
Correct answer: B. Protect it from deterioration on exposure to air
- A. Vulcanise it
- B. Protect it from deterioration on exposure to air
- C. Make it non-inflammable
- D. Make it thermosetting
Explanation
Diphenylamine acts as an antioxidant by reacting with oxidation products and free radicals, thereby slowing deterioration of rubber in air. Vulcanisation instead uses sulphur or related curing systems to form cross-links.
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