izindaba

I-ejenti eyenza ifilimu iyingxenye eyinhloko ye-glass fibre infiltrant, ngokuvamile ibala u-2% kuya ku-15% wengxenye enkulu yefomula yokungena, indima yayo ukuhlanganisa i-fiber yengilazi ibe yizinqwaba, ekukhiqizeni ukuvikelwa kwemicu, ukuze izinqwaba ze-fiber zibe nezinga elihle lokuqina, i-agglomeration, ukuhlangabezana nezidingo ze-fiber zeglasi. Ama-ejenti okwakha ifilimu asetshenziswa kakhulu ekwenziweni kwe-glass fiber infiltrant ama-polymers, afaka ama-epoxy resins, i-polyurethane, i-polyester, ama-phenolic resins, ama-polypropylene dispersions ashintshiwe, noma ama-emulsions. Ukusebenza kwama-ejenti okwenza ifilimu ikakhulukazi kuncike esakhiweni samangqamuzana nesisindo samangqamuzana we-polymer. Ku-ejenti efanayo yokwenza ifilimu, ukuqina kweingilazi fiberingalawulwa isisindo samangqamuzana e-ejenti eyenza ifilimu, futhi i-ejenti eyenza ifilimu enesisindo esiphezulu se-molecular izoba nokuqina okuphezulu kwe-glass fiber, efanelekile ukwelashwa okungaphezuluukuqinisa imikhiqizo ye-fiber yengilazi eqoshiwe ye-thermoplastic, kuyilapho i-ejenti eyenza ifilimu enesisindo esiphansi samangqamuzana ifaneleka ukukhiqizwa kwezintambo ezisetshenziselwa ukugoqa nokudonsa ukubunjwa. Ama-polymers e-epoxy resin aqukethe i-aliphatic hydroxyl, i-ether, namaqembu e-epoxy, futhi kukhona ukukhanga kwamakhemikhali okunamandla phakathi kwamaqembu e-polar kuma-epoxy film-forming agents, ngakho anomphumela omuhle wokunamathela kanye nokuhlanganiswa emicu yengilazi;

Ngaphezu kwalokho, iqembu le-epoxy ejentini elenza ifilimu ye-epoxy lingasabela neqembu le-hydroxyl esibulalayo, iqembu le-terminal carboxyl, iqembu le-amino elibulalayo, namanye amaqembu asebenzayo kumapulasitiki obunjiniyela afana ne-PBT, i-PET, i-PA, i-PC, njll. Ama-ejenti okwakhiwa kwefilimu ye-polyester aqukethe amaqembu amaningi e-ester, izibopho zamakhemikhali angasetshenzisiwe, namaqembu e-hydrophilic ochungechungeni oluyinhloko, futhi ukusebenza kwawo kuncike ohlotsheni lwe-asidi notshwala olusetshenziswa ekuhlanganiseni i-polyester kanye nesilinganiso. Uma i-base resin iyinhlaka ye-polyester engagcwalisiwe, amabhondi angagcwele ku-ejenti eyenza ifilimu ye-polyester angakwazi ukwenza polymerize futhi axhumane namabhondi aphindwe kabili ku-base resin ukuze akhe isibopho samakhemikhali esiqinile noma ukubopha okubonakalayo, okuthuthukisa amandla okubopha okuhlangene ubuso. Ama-ejenti akhiqiza ifilimu ye-polyester ngokuvamile anezindawo ezinhle kakhulu zokumanzisa nokungena futhi ngenxa yalokho asetshenziswa njengama-ejenti wokumanzisa ku-pultrusion, ukusonga, ukufutha, i-chevron, neminye imikhiqizo. I-polyurethane ifilimu eyenza i-agent ye-molecular chain iqukethe ukuphindaphinda kwesakhiwo se-carbamate, ukuba khona kwalawa maqembu e-polar kwenza i-polyurethane kuya ku-fiber yengilazi ibe nokubopha okuhle kakhulu, izingxenye zamangqamuzana ezithambile neziqinile zenhlanganisela yokunwebeka okuphezulu nokumelana nokuhuzuka, ngesikhathi esifanayo, i-polyurethane eqenjini le-isocyanate ingangenwa nge-amino coupling ejenti, ithuthukise i-amino coupling agent ku-interfacial reaction, i-amino coupling agent ku-interfacial resining, i-amino coupling agent, i-amino coupling agent ku-interfacial resin. ukusebenza kweizinto ezihlanganisiweimikhiqizo.