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P-Phenylenediamine
p-Phenylenediamine (PPD), also called 1,4-diaminobenzene or 1,4-phenylenediamine is an aromatic amine used as a component of engineering polymers and composites, aramid fibers, hair dyes, rubber chemicals, textile dyes and pigments. PPD is selected because of its low toxicity, high temperature stability, high strength, and chemical and electrical resistance.
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