Waa maxay faa'iidooyinka bisphenol A epoxy resin?
Bisphenol A BPA epoxy resin waa nooca ugu badan ee la soo saaro oo si weyn loo isticmaalo ee epoxy resin. Waxay muujisaa hufnaan sare waxaana laga soo saaraa bisphenol A BPA iyo epichlorohydrin iyadoo ay joogaan sodium hydroxide. Heerka polymerization-ka, oo loo yaqaan "n", badanaa wuxuu u dhexeeyaa 0 ilaa 25. Iyada oo ku saleysan miisaanka molecular, epoxy resins waxaa loo kala saari karaa darajooyin kala duwan. Guud ahaan, epoxy resins miisaanka molecular ee hooseeya waxay leeyihiin qiime celcelis ahaan "n" oo ka yar 2 iyo dhibic jilcineed oo ka hooseysa 50°C, waxaana loo yaqaannaa epoxy resins jilicsan. Resins miisaanka molecular ee dhexdhexaadka ah waxay leeyihiin qiime "n" oo u dhexeeya 2 iyo 5, iyadoo dhibic jilcineed ay u dhaxayso 50°C ilaa 95°C. Resins leh qiime "n" oo ka weyn 5 (barta jilcineed ee ka sarreysa 100°C) waxaa loo kala saaraa resins miisaan molecular oo sare.