Phenolic resinhe mea polymer synthetic i hana ʻia e ka condensation o nā phenols (e like me phenol) a me nā aldehydes (e like me formaldehyde) ma lalo o ka waikawa a i ʻole ka base catalysis. Loaʻa iā ia ke kūpaʻa wela maikaʻi, insulation a me ka ikaika mechanical a hoʻohana ʻia i ka uila, automotive, aerospace a me nā māla ʻē aʻe.
ʻO ka resin Phenolic (Phenolic Resin) he resin synthetic i hana ʻia. Hana ʻia ia e ka hopena condensation o ka phenol a i ʻole nā mea i loaʻa (e like me ka cresol, xylenol) a me ka formaldehyde. E like me ke ʻano o ka catalyst (acidic a alkaline) a me ka ratio o nā mea maka, hiki ke hoʻokaʻawale ʻia i ʻelua mau ʻāpana: thermoplastic a me thermosetting. ?
Nā hiʻohiʻona nui Nā waiwai kino:
1. ʻO ka maʻamau he paʻa ʻōniʻoniʻo ʻole a melemele paha. Hoʻohui pinepine nā huahana kūʻai i nā kala e hōʻike i nā kala like ʻole. ?
2. Loaʻa iā ia ke kūpaʻa wela koʻikoʻi a hiki ke hoʻohana ʻia no ka manawa lōʻihi ma 180 ℃. Hoʻokumu ia i ka nui kalapona koena kiʻekiʻe (ma kahi o 50%) i ka wela kiʻekiʻe. ?
3. Nā hiʻohiʻona hana:
ʻO ka hoʻokaʻawale uila maikaʻi loa, ka pale ahi (ʻaʻole pono e hoʻohui i nā mea pale ahi) a me ke kūpaʻa dimensional. ?
Loaʻa iā ia ka ikaika mechanical kiʻekiʻe, akā palupalu a maʻalahi hoʻi e hoʻomoʻa i ka makū. ?
4. Hoʻohui a me ka hoʻolālā Thermoplastic phenolic resin : ʻO ke ʻano laina, pono e hoʻohui i ka lāʻau lapaʻau (e like me hexamethylenetetramine) e crosslink a hoʻōla. ?
5. ʻO ka thermosettingPhenol-formaldehyde resin : ʻO ka ʻōnaehana crosslinking pūnaewele, hiki ke hoʻōla ʻia e ka hoʻomehana ʻana, ʻoi aku ka kiʻekiʻe o ka wela a me ka ikaika mechanical
Hoʻohana nui ʻia ka resin Phenolic e hana i nā plastics like ʻole, nā uhi, nā adhesives a me nā fiber synthetic.
Ka manawa hoʻouna: Jul-17-2025