phenolic resinbụ ihe eji eme ihe na-emepụta ihe na-emepụta site na condensation nke phenols (dị ka phenol) na aldehydes (dị ka formaldehyde) n'okpuru acid ma ọ bụ isi catalysis. Ọ nwere ezigbo nguzogide okpomọkụ, mkpuchi na ike igwe ma jiri ya na eletriki, ụgbọ ala, ikuku ikuku na mpaghara ndị ọzọ.
Resin phenolic (Phenolic Resin) bụ resin sịntetị nke emeberela. A na-eme ya site na mmeghachi omume condensation nke phenol ma ọ bụ ihe ndị na-emepụta ya (dị ka cresol, xylenol) na formaldehyde. Dị ka ụdị catalyst (acid ma ọ bụ alkaline) na oke nke akụrụngwa, ọ nwere ike kewaa ụzọ abụọ: thermoplastic na thermosetting.
Njirimara nke anụ ahụ bụ isi:
1. Ọ na-abụkarị ihe siri ike na-enweghị agba ma ọ bụ na-acha odo odo. Ngwaahịa ndị a na-ere ahịa na-agbakwunyekarị agba iji gosi ụdị agba dị iche iche.
2. Ọ nwere pụtara ìhè okpomọkụ na-eguzogide na ike ga-eji ruo ogologo oge na 180 ℃. Ọ na-etolite ọnụego carbon dị elu (ihe dịka 50%) na oke okpomọkụ.
3. Njirimara arụrụ arụ:
Ihe mkpuchi ọkụ eletrik mara mma, ire ọkụ (ọ dịghị mkpa ịgbakwunye ọkụ retardants) na nkwụsi ike nke akụkụ.
Ọ nwere ike n'ibu dị elu, mana ọ na-emebi emebi ma dịkwa mfe ịmịkọrọ mmiri.
4. Nhazi na nhazi Thermoplastic phenolic resin: Linear Ọdịdị, chọrọ mgbakwunye nke onye na-agwọ ọrịa (dị ka hexamethylenetetramine) na crosslink na ọgwụgwọ.
5. Thermosettingphenol-formaldehyde resin: Network crosslinking Ọdịdị, nwere ike gwọọ site kpo oku, nwere elu okpomọkụ na-eguzogide na n'ibu ike
A na-ejikarị resin phenolic na-emepụta plastik dị iche iche, mkpuchi, nrapado na eriri sịntetik.
Oge nzipu: Jul-17-2025