Ngo ma tye ber pa bisphenol A epoxy resin?
Bisphenol A bpa gin ma ki lwongo ni epoxy resin aye gin ma ki yubu ki pol kare ki tiyo kwede. Nyutu rwom ma lamal ki ki yubu ki bisphenol A BPA ki epichlorohydrin ma tye ki sodium hydroxide. Kit ma polymerization ni tye kwede, ma ki nyutu ni "n", pol kare cako ki 0 nio wa i 25. Malube ki pek pa molecule, epoxy resins ki twero poko ne i rwom ma pat pat. I kom lok, jami ma ki lwongo ni low molecular weight epoxy resins tye ki wel ma rwate ki "n" ma tye piny ki 2 ki rwom me goro ma piny 50°C, ki ki lwongo ni soft epoxy resins. Gin ma ki lwongo ni medium molecular height resins tye ki "n" ma tye i kin 2 ki 5, ki rwom me goro ma aa ki 50°C nio wa i 95°C. Gin ma ki lwongo ni resins ma tye ki wel "n" ma kato 5 (kabedo me yom ma kato 100°C) ki poko gi calo resins ma pek pa molecule ma malo.