I-Abstract: Le ndatshana yethula ikakhulukazi amaphoyinti okulawulwa kwenqubo ye-solvent-free composite, kufaka phakathi, ukulawulwa kwenani lokushisa, ukulawulwa kwengcindezi, ukuthathwa komswakama, ukufana kwayo, njll.
Ama-Solvent Free Composites aya ngokuya esetshenziswa, nokuthi ungalisebenzisa kanjani kahle le nqubo ngesihloko esikhathazayo wonke umuntu. Ukuze usebenzise kahle izinhlanganisela ezingenama-solvent-free, umbhali uncoma kakhulu ukuthi amabhizinisi anezimo asebenzisa imishini eminingi yamahhala ye-solvent noma ama-glue ama-glue, okuqukethe amasilinda amabili we-glue, aqukethe ukunamathela kwe-Universal okuhlanganisa iningi lesakhiwo somkhiqizo, Futhi okunye ukukhetha ukunamathela okusebenzayo okulungele indawo noma ingqimba yangaphakathi njengesengezo ngokuya ngesakhiwo somkhiqizo wekhasimende.
Izinzuzo zokusebenzisa isilinda enjoloba esiphindwe kabili yilezi: Ingangezelela uhla lwesicelo lwama-composites angenama-solvent, ukunciphisa ukuphuma, kube nezindleko eziphansi, kanye nokusebenza kahle. Futhi asikho isidingo sokuhlanza isilinda se-glue, shintsha anamathesi, futhi sinciphise imfucuza. Ungase futhi ukhethe ama-adhesives asuselwa kwizidingo zomkhiqizo nezikhasimende ukuqinisekisa ikhwalithi yomkhiqizo.
Ngenqubo yenkonzo yesikhathi eside, ngifingqe namaphoyinti athile okulawula inqubo okufanele anakekele ukuze enze umsebenzi omuhle kwi-solvent-free composite.
I-1.clean
Ukufeza umhlanganisi omuhle we-solvent-free, into yokuqala okufanele yenziwe ukuhlanzeka, okuyiphuzu futhi elinganakwa kalula ngamabhizinisi.
I-roller eqinile eqinile, ukulinganisa i-roller eqinile, i-roller ye-roller, i-composite tressure roller, umhlahlandlela we-composite umhlahlandlela womshini wokuxuba, kanye ne-rollent ehlukahlukene yomshini wokuxuba, kufanele kube yinto ehlanzekile futhi mahhala. Ngoba noma iyiphi into yakwamanye amazwe kulezi zindawo izodala ama-bubble kanye namabala amhlophe ngaphezulu kwefilimu elihlanganisiwe.
I-2.Temperature Control
Isithako esiyinhloko se-solvent-free adhesive yi-NCO, ngenkathi umenzeli welapha u-Oh. Ubukhulu, i-viscosity, ukusebenza kwama-ejenti asemqoka nalaphayo, kanye nezici ezifana nempilo yenkonzo, izinga lokushisa, izinga lokufuna ukwelapha, konke konke kungathinta ikhwalithi yenhlanganisela.
I-Solvent Free Polyurethane Adhesive inokuvunywa okuphezulu emazingeni okushisa asekamelweni ngenxa yokungabikho kwama-molekyuli amancane we-solvent, amabutho aphezulu we-intermolecular, kanye nokwakheka kwama-hydrogen bond. Ukushisa kunganciphisa ngempumelelo ukuhlakanipha, kepha amazinga okushisa aphezulu aphezulu angaholela kalula ku-gelation, ekhiqiza ama-resins aphezulu wesisindo, okwenza ukuba kube nzima noma kungalingani. Ngakho-ke, ukulawula izinga lokushisa lokuhlanganisa kubaluleke kakhulu.
Ngokuvamile, abahlinzeki abanamathela azohlinzeka ngamakhasimende ngamapharamitha athile wokusebenzisa njengesethenjwa, futhi izinga lokushisa lokusebenzisa livame ukunikezwa njengenani lebanga.
Ukushisa okuphezulu ngaphambi kokuxuba, kwehlise ukubonwa; Ukushisa okuphezulu ngemuva kokuxuba, kukhuphuka okubonakalayo.
Ukulungiswa kwezinga lokushisa kwe-roller yokulinganisa kanye ne-roller roller ikakhulukazi kuncike ekubonakaleni kokunamathela. I-viscosity ephakeme yokunamathela, okuphezulu kokushisa kwe-roller yokulinganisa. Izinga lokushisa le-composite roller ngokuvamile lingalawulwa cishe ngo-50 ± 5 ° C.
I-3.Glue Inani lokulawula
Ngokuya ngezinto ezihlukile zenhlanganisela, amanani ahlukile we-glue angasetshenziswa. Njengoba kukhonjisiwe etafuleni, kunikezwe uhla olungezelela inani le-glue, futhi ukulawulwa kwenani le-glue ekukhiqizeni kunqunywa ikakhulukazi ngegebe kanye nesilinganiso sejubane phakathi kwe-roller yokulinganisa kanye ne-roller elungisiwe.Inani le-glue application
Ukulawulwa kwe-4.Press
Ngenxa yokuthi i-roller ye-coating ilawula inani le-glue esetshenziswe yigebe kanye nesilinganiso sejubane phakathi kwama-roller amabili akhanyayo, usayizi wengcindezi ye-coating uzothinta ngqo inani le-glue esetshenzisiwe. Ingcindezi ephakeme, incane inani le-glue esetshenzisiwe.
5.Ukuhambisana phakathi kwe-inki ne-glue
Ukuhambisana phakathi kokunamathela okunama-solvent-free kanye nama-inks kuvame ukuba kuhle kulezi zinsuku. Kodwa-ke, lapho izinkampani zishintsha abakhiqizi be-inki noma amasistimu wokunamathela, basadinga ukuqhuba ukuhlolwa kokuhambisana.
Ukulawulwa kwe-6.Tension
Ukulawulwa kwengxabano kubalulekile ku-solvent-free composite ngoba ukunamathela kwawo kokuqala kuphansi impela. Uma ukungezwani kolwelwesi bangaphambili nangemuva akuhambelani, kungenzeka ukuthi ngesikhathi senqubo yokuvuthwa, i-shrinkage yolwelwesi ingahle ihluke, okuholela ekubonakaleni kwama-bubble kanye nemihubhe.
Ngokuvamile, ukondliwa kwesibili kufanele kwehliswe ngangokunokwenzeka, futhi ngamafilimu amakhulu, ukungezwani kanye nokushisa kwe-composite roller kufanele kukhuphuke ngokufanele. Zama ukugwema ukugoqa ifilimu eliyinhlanganisela ngangokunokwenzeka.
7.Control umswakama kanye nendawo yayo
Njalo qapha ushintsho kumswakama bese ulungisa isilinganiso se-ejenti ye-ejenti ye-agent enkulu kanye ne-ejenti yokuphulukisa ngokufanele. Ngenxa yejubane elisheshayo le-solvent-free composite, uma umswakama uphezulu kakhulu, ifilimu eliyinhlanganisela ehlanganiswe ne-glue isazothintana nomswakama osemoyeni, okuholela ekutheni i-phenomena efana ne-glue ukukhonkotha.
Ngenxa yesivinini esikhulu somshini we-solvent-free laminaming, i-substrate esetshenzisiwe izokhiqiza ugesi ophelele, okwenza ifilimu lokuphrinta lithole kalula uthuli kanye nokungcola, okuthinta ikhwalithi yokubukeka komkhiqizo. Ngakho-ke, indawo yokusebenza yokukhiqiza kufanele ivalwe kakhulu, ukugcina umhlangano wokushisa ngaphakathi kwezinga lokushisa elidingekayo kanye nobubanzi bomswakama.
8.Ukuqala
Ngokuvamile, i-glue ngaphambi kokungena kwisilinda idinga ukushiswa kusengaphambili, futhi i-glue exubile ingafakwa kuphela ngemuva kokufudunyezwa kokushisa okungu-glue.
9.Conclusion
Esigabeni samanje lapho i-solvent-free composite ne-conyos composite conyos, amabhizinisi adinga ukukhulisa ukusetshenziswa kwemishini kanye nenzuzo. Inqubo ingaba yinhlanganisela engenamahhala ye-solvent, futhi ngeke ibe yinhlanganisela eyomile. Ngokufanelekile futhi ngempumelelo ukuhlela ukukhiqizwa, futhi usebenzise ngempumelelo imishini ekhona. Ngokulawula inqubo kanye nokusungula amabhukwana okusebenza okuqondile, ukulahleka kokukhiqizwa okungadingekile kungancishiswa.
Isikhathi sePosi: DEC-21-2023