Resin phenolicbụ ihe e ji emepụta polima site na njikọta nke phenols (dịka phenol) na aldehydes (dịka formaldehyde) n'okpuru acid ma ọ bụ ntọala catalysis. O nwere ezigbo iguzogide okpomọkụ, mkpuchi na ike mekaniki ma ejiri ya mee ihe na eletriki, ụgbọ ala, ụgbọelu na mpaghara ndị ọzọ.
Resin phenolic (Phenolic Resin) bụ resin sịntetik nke e mepụtara n'ụlọ ọrụ mmepụta ihe. A na-eme ya site na mmeghachi omume condensation nke phenol ma ọ bụ ihe ndị sitere na ya (dịka cresol, xylenol) na formaldehyde. Dịka ụdị ihe na-eme ka ihe na-akpali akpali (acidic ma ọ bụ alkaline) si dị na oke nke ihe ndị e ji emepụta ihe, enwere ike kewaa ya ụzọ abụọ: thermoplastic na thermosetting.
Isi njirimara ihe ndị dị na anụ ahụ:
1. Ọ na-abụkarị ihe siri ike na-enweghị agba ma ọ bụ nke na-acha aja aja na-acha odo odo. Ngwaahịa ndị a na-ere n'ahịa na-agbakwụnyekarị agba iji gosipụta ọtụtụ agba.
2. O nwere oke iguzogide okpomọkụ, a pụkwara iji ya ruo ogologo oge na 180℃. Ọ na-emepụta oke carbon fọdụrụ (ihe dị ka 50%) n'oge okpomọkụ dị elu.
3. Àgwà ọrụ:
Ọ dị mma maka mkpuchi ọkụ eletrik, ọ naghị ebelata ire ọkụ (ọ dịghị mkpa itinye ihe na-ebelata ire ọkụ) na nkwụsi ike nha.
O nwere ike igwe dị elu, mana ọ na-agbawa agbawa ma dịkwa mfe ịmịkọrọ mmiri.
4. Nhazi na nhazi nke resin Thermoplastic phenolic : Nhazi ahịrị, chọrọ mgbakwunye nke ihe na-agwọ ọrịa (dịka hexamethylenetetramine) iji jikọta ma gwọọ.
5. Nhazi okpomọkụResin Phenol-formaldehyde: Nhazi njikọ netwọk, enwere ike ịgwọ site na ikpo ọkụ, nwere ike iguzogide okpomọkụ dị elu na ike igwe
A na-ejikarị resin phenolic emepụta ọtụtụ plastik, ihe mkpuchi, ihe nrapado na eriri sịntetik dị iche iche.
Oge ozi: Julaị-17-2025
