iindaba

Iarhente eyenza ifilimu yeyona nto iphambili kwi-glass fiber infiltrant, ngokubanzi ithatha i-2% ukuya kwi-15% yenxalenye yobunzima befomyula yokungena, indima yayo kukubopha i-glass fiber ibe zii-bundles, ekuveliseni ukhuseleko lwee-fibers, ukuze ii-fiber bundles zibe nenqanaba elihle lokuqina, i-agglomeration, ukuhlangabezana neemfuno zenkqubo ezilandelayo kwiimveliso ze-glass fiber. Iiarhente zokwenza ifilimu ezisetyenziswa rhoqo kwi-glass fiber infiltrant formulations zii-polymers, kubandakanya ii-epoxy resins, i-polyurethane, i-polyester, ii-phenolic resins, i-modified polypropylene dispersions, okanye ii-emulsions. Ukusebenza kwee-arhente zokwenza ifilimu kuxhomekeke kakhulu kwisakhiwo se-molecular kunye nobunzima be-molecular ye-polymer. Kwi-arhente efanayo yokwenza ifilimu, ukuqina kweifayibha yeglasiinokulawulwa bubunzima beemolekyuli zearhente eyenza ifilimu, kwaye iarhente eyenza ifilimu enobunzima beemolekyuli eziphezulu iya kuba nokuqina okuphezulu kwefayibha yeglasi, efanelekileyo kunyango lomphezulu weukuqinisa iimveliso zefayibha zeglasi ezinqunqiweyo ze-thermoplastic, ngelixa iarhente yokwenza ifilimu enobunzima obuphantsi beemolekyuli ifanelekile ukuvelisa imisonto esetyenziswa ekubumbeni nasekutsaleni. Iipolymers ze-epoxy resin ziqulathe amaqela e-aliphatic hydroxyl, ether, kunye ne-epoxy, kwaye kukho ukutsalana okukhulu kweekhemikhali phakathi kwamaqela e-polar kwiiarhente zokwenza ifilimu ye-epoxy, ngoko ke zinamathela kakuhle kwaye zinefuthe elihle lokubophelela kwiifayibha zeglasi;

Ukongeza, iqela le-epoxy kwi-ejenti yokwenza ifilimu ye-epoxy linokusabela neqela le-terminal hydroxyl, iqela le-terminal carboxyl, iqela le-terminal amino, kunye namanye amaqela asebenzayo kwiiplastiki zobunjineli ezifana ne-PBT, i-PET, i-PA, i-PC, njl.njl., ukuphucula amandla okubopha phakathi kwefayibha yeglasi kunye ne-resin. Ii-arhente zokwenza ifilimu ye-polyester ziqulathe amaqela amaninzi e-ester, ii-unsaturated chemical bonds, kunye namaqela e-hydrophilic kwi-main chain, kwaye ukusebenza kwazo kuxhomekeke kuhlobo lwe-asidi kunye notywala olusetyenziswa ekuhlanganiseni i-polyester kunye nomlinganiselo. Xa i-base resin iyi-unsaturated polyester resin, ii-unsaturated double bonds kwi-ejenti yokwenza ifilimu ye-polyester zinokupolimisa kwaye zidibanise nee-double bonds kwi-base resin ukuze zenze i-chemical bond enamandla okanye i-physical entanglement, nto leyo ephucula amandla okubopha phakathi kwe-interfacial. Ii-ejenti zokwenza ifilimu ye-polyester zihlala zineempawu ezibalaseleyo zokumanzisa nokungena kwaye ke ngoko zisetyenziswa njengee-wetting agents kwi-pultrusion, winding, spray, chevron, kunye nezinye iimveliso. I-arhente eyenza ifilimu ye-polyurethane i-molecule chain inesakhiwo se-carbamate esiphindaphindayo, ubukho bala maqela e-polar benza ukuba i-polyurethane ibe yi-fiber yeglasi ibe ne-binding elungileyo kakhulu, amacandelo athambileyo naqinileyo e-molecular adibeneyo yokuqina okuphezulu kunye nokumelana nokukrala, kwangaxeshanye, i-polyurethane kwiqela le-isocyanate inokufakwa kwi-amino coupling agent kunye ne-matrix resin kwi-chemical reaction, ukukhuthaza ukubophelelana phakathi kwe-interfacial, ukuphucula ukusebenza kwe-izixhobo ezidityanisiweyoiimveliso.