What is the purpose of adding diphenylamine to rubber?

Polymer Technology MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

PPSCFPSCNTSPakistan govt jobs
Subject
Polymer Technologychemical-engineering › polymer-technology
Published
7 Mar 2019
Last updated
28 May 2026

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Explanation

Diphenylamine is incorporated into rubber primarily to protect it from oxidative damage when exposed to air, thereby enhancing its durability. It does not vulcanize the rubber, make it flame-retardant, or turn it into a thermosetting polymer.

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