shivampolymer
shivampolymer
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shivampolymer · 6 days ago
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Phenol Formaldehyde Resin
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Phenol Formaldehyde resin is a synthetic polymer made by reacting phenol with formaldehyde. It is a thermosetting resin known for its strength, versatility, fire resistance, and thermal stability.
Novolac Resins: These are acid-catalyzed resins and are thermoplastic in nature. They require external heat and a hardener to cure.
Resole Resins: These are alkaline-catalyzed resins that can self-cure with heat and pressure. They can also be cured by adding external acids as catalysts.
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