- 27
- Mar
Abakhiqizi bepayipi le-epoxy bakutshela izici zohlelo lokusebenza zamabhodi e-epoxy
Abakhiqizi bepayipi le-epoxy bakutshela izici zohlelo lokusebenza zamabhodi e-epoxy:
1. Amafomu ahlukahlukene. Izinhlobonhlobo zama-resin, ama-ejenti elaphayo, nezinhlelo zokuguqula ziyatholakala ukuze zivumelane cishe nezidingo zefomu lesicelo, kusukela kuma-viscosity aphansi kakhulu kuya kokuqinile kwendawo encibilika.
2. Kulula ukwelapha. Ngokusebenzisa ama-ejenti okwelapha ahlukahlukene, amasistimu e-epoxy resin angelapheka ebangeni lokushisa elisukela ku-0 kuye ku-180 °C.
3. Ukunamathela okuqinile. Ukuba khona kwe-polar hydroxyl namabhondi e-ether atholakala ochungechungeni lwemolekyuli ye-epoxy resin [1] kuyenza ibe nokunamathela okuphezulu ezintweni ezihlukahlukene. Ama-epoxy resins anokuncipha okuphansi lapho elashwa futhi adala ingcindezi encane yangaphakathi, ebuye ibe nomthelela ekuthuthukisweni kwamandla okunamathela.
4. Ukuncipha okuphansi. Ukusabela kwe-epoxy resin kanye ne-ejenti yokwelapha esetshenziswayo kwenziwa ngokusabela kokwengeza okuqondile noma i-polymerization yokuvula indandatho yamaqembu e-epoxy ku-molecule ye-resin, ngaphandle kokukhishwa kwamanzi noma eminye imikhiqizo eguquguqukayo. Zibonisa ukuncipha okuphansi kakhulu (ngaphansi kuka-2%) ngesikhathi sokuphulukiswa uma kuqhathaniswa nama-polyester angenalutho nama-phenolic resins.
- Izici zemishini. I-epoxy resin system ephulukisiwe inezakhiwo ezinhle kakhulu zomshini.