izindaba

I-ejenti eyakha ifilimu iyisakhi esiyinhloko se-glass fiber infiltrant, ngokuvamile ebalelwa ku-2% kuya ku-15% wengxenye enkulu yefomula ye-infiltrant, indima yayo ukubopha i-glass fiber ibe yizinqwaba, ekukhiqizeni ukuvikelwa kwezintambo, ukuze izinqwaba ze-fiber zibe nezinga elihle lokuqina, ukuhlangana, ukuze kuhlangatshezwane nezidingo zenqubo elandelayo emikhiqizweni ye-glass fiber. Ama-ejenti avame ukusetshenziswa ekwakheni ifilimu kuma-glass fiber infiltrant formulations ama-polymer, kufaka phakathi ama-epoxy resins, i-polyurethane, i-polyester, ama-phenolic resins, ama-modified polypropylene dispersions, noma ama-emulsions. Ukusebenza kwama-ejenti akha ifilimu kuncike kakhulu esakhiweni sama-molecule kanye nesisindo sama-molecule se-polymer. Ku-ejenti efanayo eyakha ifilimu, ukuqina kwe-i-fiber yengilaziingalawulwa yisisindo sama-molecule se-ejenti eyakha ifilimu, kanti i-ejenti eyakha ifilimu enesisindo sama-molecule aphezulu izoba nokuqina okuphezulu kwe-fiber yengilazi, efanele ukwelashwa kobuso be-imikhiqizo yefayibha yengilazi eqoshiwe ye-thermoplastic eqinisiwe, kuyilapho i-ejenti yokwakha ifilimu enesisindo esincane sama-molecule ifaneleka ekukhiqizweni kwezintambo ezisetshenziswa ekubumbeni nasekudonseni. Ama-polymer e-epoxy resin aqukethe amaqembu e-aliphatic hydroxyl, ether, kanye ne-epoxy, futhi kukhona ukukhangana okukhulu kwamakhemikhali phakathi kwamaqembu e-polar kuma-ejenti akha ifilimu e-epoxy, ngakho-ke anokunamathela okuhle kanye nomthelela wokubopha kumafayibha engilazi;

Ngaphezu kwalokho, iqembu le-epoxy elise-ejentini yokwenza ifilimu ye-epoxy lingasabela neqembu le-terminal hydroxyl, iqembu le-terminal carboxyl, iqembu le-terminal amino, namanye amaqembu asebenzayo kumapulasitiki obunjiniyela njenge-PBT, PET, PA, PC, njll., ukuthuthukisa amandla okubopha phakathi kwefayibha yengilazi kanye ne-resin. Ama-ejenti akha ifilimu ye-polyester aqukethe amaqembu amaningi e-ester, ama-unsaturated chemical bonds, namaqembu e-hydrophilic eketangeni eliyinhloko, futhi ukusebenza kwawo kuncike ohlotsheni lwe-asidi notshwala olusetshenziswa ekwakhiweni kwe-polyester kanye nesilinganiso. Lapho i-base resin iyi-unsaturated polyester resin, ama-unsaturated double bonds e-ejentini yokwenza ifilimu ye-polyester angenza i-polymerize futhi axhumane nama-double bonds e-base resin ukuze akhe isibopho samakhemikhali esinamandla noma ukuxhunywa ngokomzimba, okuthuthukisa amandla okubopha phakathi. Ama-ejenti akha ifilimu ye-polyester avame ukuba nezakhiwo ezinhle kakhulu zokumanzisa nokungena futhi ngenxa yalokho asetshenziswa njenge-wetting agents ekuqhumeni, ekugoqeni, ekufutheni, e-chevron, nakweminye imikhiqizo. I-ejenti eyakha ifilimu ye-polyurethane uchungechunge lwama-molecule luqukethe isakhiwo se-carbamate esiphindaphindayo, ukuba khona kwala maqembu e-polar kwenza i-polyurethane ibe yi-fiber yengilazi ibe nokubopha okuhle kakhulu, izingxenye ezithambile neziqinile zama-molecule zenhlanganisela yokuqina okuphezulu nokumelana nokuklwebheka, ngasikhathi sinye, i-polyurethane eqenjini le-isocyanate ingafakwa ne-ejenti yokuhlanganisa i-amino kanye ne-matrix resin ekusabeleni kwamakhemikhali, ukukhuthaza ukubopha okuphakathi, ukuthuthukisa ukusebenza kwe-izinto ezihlanganisiweimikhiqizo.