Mfaso bɛn na ɛwɔ bisphenol A epoxy resin so?
2. 2.025-10-20 na ɛyɛ
Bisphenol A. a wɔde yɛ aduru bpa epoxy resin ne epoxy resin a wɔyɛ no kɛse na wɔde di dwuma kɛse. Ɛda nea ɛda adi kɛse adi na wɔde bisphenol A BPA ne epichlorohydrin a sodium hydroxide wɔ mu na ɛyɛ. Polymerization dodow, a wɔkyerɛ sɛ "n", taa fi 0 kosi 25.Wɔgyina molecule mu duru so, wobetumi akyekyɛ epoxy resins mu ayɛ no grade ahorow. Mpɛn pii no, epoxy resins a emu duru sua no, sɛ wɔkyekyem pɛpɛɛpɛ a, "n" bo nnu 2 na ɛyɛ mmerɛw wɔ 50°C ase, na wɔfrɛ no epoxy resins a ɛyɛ mmerɛw. Medium molecule weight resins wɔ "n" boɔ a ɛwɔ 2 ne 5 ntam, a ne softening point firi 50°C kɔsi 95°C. Wɔkyekyɛ resins a "n" bo boro 5 (softening point boro 100°C) mu sɛ resins a emu duru yɛ molecule mu duru kɛse.