Ni ivyiza ibihe biva ku ntungamubiri yitwa bisphenol A?
Bisfenoli A bpa epoxy resin ni yo nzira ikoreshwa cane kandi ikoreshwa cane. Igaragaza ubusobanuro bwinshi kandi ikozwe mu bisphenol A BPA na epichlorohydrin iyo hariho ivyuma bita sodium hydroxyde. Urugero rw'uguhinduka kw'ibintu, rwerekanwa na "n", mu bisanzwe ruva kuri 0 gushika kuri 25. Bishingiye ku buremere bw'amamolekule, amaresine ya epoxy ashobora gushirwa mu bice bitandukanye. Muri rusangi, amaresine y'uburemere buke bw'amamolekule afise agaciro ka "n" kari munsi ya 2 n'aho yoroha munsi ya 50°C, kandi yitwa amaresine y'epoxy yoroshe. Amaresine y'uburemere buringaniye afise agaciro ka "n" kari hagati ya 2 na 5, n'aho yoroha kuva kuri 50°C gushika kuri 95°C. Amaresine afise agaciro ka "n" karuta 5 (aho yoroha hejuru ya 100°C) ashirwa mu rwego rw'amaresine afise uburemere bwinshi bw'amamolekule.