Bisphenol A epoxy resin hian eng nge a thatna?
Bisphenol A ni a bpa epoxy resin hi epoxy resin chi hrang hrang siam chhuah tam ber leh hman lar ber a ni. Transparency sang tak a lantir a, bisphenol A BPA leh epichlorohydrin atanga sodium hydroxide awmnaah siam a ni. Polymerization degree, "n" tia tarlan chu 0 atanga 25 inkar a ni tlangpui.Molecular weight atanga thlirin epoxy resins te hi grade hrang hrangah then theih a ni. A tlangpuiin molecular weight hniam epoxy resins te hian average "n" value 2 aia tlem leh softening point 50°C hnuai lam an nei a, soft epoxy resins tia sawi an ni. Medium molecular weight resins hian "n" value 2 leh 5 inkar a nei a, softening point chu 50°C atanga 95°C inkar a ni. Resin "n" value 5 aia tam (softening point 100°C aia sang) chu molecular weight sang tak resins-ah an dah a ni.