Ungayikhetha kanjani ngokunembile ukunamathela okunama-composite

I-Abstract: Uma ufuna ukwenza inqubo ye-solvent-free complend usebenzisa ngokuqinile, kubalulekile ukukhetha i-composite adhesive kahle.

Ngokuvuthwa kanye nokuthandwa kwe-solvent-free composite technology, ama-substrates amaningi wefilimu angasetshenziselwa i-solvent-free composite. Ukuze usebenzise ubuchwepheshe obuhlanganisiwe we-solvent-free composite bucayi, kubalulekile ukukhetha ukunamathela okulungile okulungile. Ngezansi, kususelwa kulwazi lomlobi, sizokwazisa ukuthi singasikhetha kanjani anamathele afanele anamahhala we-solvent.

Njengamanje, ukugcwala owomile kanye no-solvent-free lamiary couxist. Ngakho-ke, ukuqinisa ukusetshenziswa kwe-solvent-free lamination Technology, iphuzu lokuqala ukuqonda ngokuphelele ukwakheka komkhiqizo wefektri yokufaka, kuhlukanise ukwakheka komkhiqizo ngokuningiliziwe, kuhlukanise ukwakheka komkhiqizo okungasetshenziselwa ukugqanyiswa kwamahhala kwe-solvent, futhi Bese ukhetha ukunamathela okungekho emthethweni okulula. Ngakho-ke, kanjani ukukhetha ngempumelelo ukunamathela kwamahhala? Qondanisa ngamunye ngamunye kulezi zinto ezilandelayo.

1. amandla anamathela

Ngenxa yobunzima kanye nokwehlukahluka kwezinto zokupakisha, ukwelashwa okungaphezulu kwezindawo eziphansi kuyahluka kakhulu. Izinto ezijwayelekile zokufaka eziguquguqukayo nazo zinezici ezihlukile, njenge-PE, i-BOPP, isilwane, i-PA, i-CPP, i-vmpet, i-PS, PVC, EVA, PT , I-PC, iphepha, njll. Ngakho-ke, okhethwe ngama-solvent-free adhesis akhethiwe ngamabhizinisi kufanele abe nokunamathela okuhle kwezinto ezisebenza kakhulu zokupakisha.

1. Ukumelana Nezinga lokushisa

Ukumelana nokushisa kufaka phakathi izici ezimbili. Eyokuqala ukumelana kwamazinga okushisa aphezulu. Njengamanje, ukudla okuningi kudinga ukubulawa kwezinsimbi zokushisa okuphezulu, ezinye ziyinzalo ngo-80-100° C, kanti abanye banxiwa ngo-100-135° C. Isikhathi sokubulala inzalo siyahlukahluka, nabanye abadinga imizuzu eyi-10-20 kanti abanye badinga imizuzu engama-40. Abanye basagqitshwa inzalo nge-ethylene oxide. Izinto ezahlukahlukene zinezindlela ezihlukile zokuhlukumeza. Kepha ukunamathela okukhethiwe okukhethiwe kumele kuhlangabezane nalezi zidingo zokushisa eziphakeme. Isikhwama asikwazi ukungcola noma sikhubazeke ngemuva kokushisa okuphezulu. Ngaphezu kwalokho, izinto ezihlaselwe nge-solvent-free adhesive kufanele zikwazi ukubekezelela amazinga okushisa aphezulu angama-200° C noma ngisho nama-350° C manjalo. Uma lokhu kungeke kutholakale, ukuvalwa kokushisa kwesikhwama kuthambekele ekuhlelekeni.

Okwesibili ukumelana kwezinga lokushisa okuphansi, okwaziwa nangokuthi umkhondo wokumelana. Izinto eziningi zokupakisha ezithambile ziqukethe ukudla okuqandisiwe, okudinga ukunamathela kwamahhala kwe-solvent ukuze ukwazi ukumelana namazinga okushisa aphansi. Emazingeni okushisa aphansi, izinto zokwakha eziqinile ezinama-adhesive ngokwazo zithambekele ekuqiniseni, ubucwebe, ubuhlakani, kanye nokuqhekeka. Uma kwenzeka lezi zimo, kukhombisa ukuthi izinamathiselo ezikhethiwe azikwazi ukumelana namazinga okushisa aphansi.

Ngakho-ke, lapho ukhetha ukunamathela okunama-solvent-free, ukuqonda okuningiliziwe nokuhlolisisa ukumelana kwezinga lokushisa kuyadingeka.

I-3.Health and Safety

Ama-adhesives angenama-solvent asetshenziswa ekudleni kokudla kanye nezidakamizwa kufanele abe nokuhlanzeka okuhle nokuphepha. Imithetho eqinile isendaweni emazweni ahlukahlukene emhlabeni jikelele. I-US FDA Hlukanisa izinamathiseli ezisetshenziswe ezintweni zokupakisha ezihlanganisiwe zokudla kanye nezidakamizwa njengezengezo, okukhawulela izinto ezingavuthiwe ezisetshenziselwa ukukhiqiza izikhangiso ezingafakwanga kuhlu oluvunyiwe lwezinto ezingavuthiwe, kanye nezinto zokwenziwa ezinhlanganisiwe nalezi Ukunamathela kuhlukaniswa futhi kukhawulelwe kububanzi bendawo yokushisa yohlelo lokusebenza, kufaka phakathi ukusetshenziswa kwezinga lokushisa kwegumbi, ukusetshenziswa kwe-bissuction okusabisayo, ukusetshenziswa kwe-122 ° C evuthayo, noma u-135 ° C nokungenhla kokusetshenziswa kwensalela ephezulu yokushisa inzalo. Ngasikhathi sinye, izinto zokuhlola, izindlela zokuhlola, kanye nezinkomba zezobuchwepheshe zezinto zokupakisha nazo zakhiwa. Kukhona nezinhlinzeko nemikhawulo efanelekile e-China ejwayelekile GB9685. ngoba anama-adhesives angenama-solvent asetshenziselwa imikhiqizo yokuthumela kwamanye amazwe kufanele ahambisane nemithetho yendawo.

4.Beka izidingo zezinhlelo zokusebenza ezikhethekile

Ukusetshenziswa okusakazekile kwama-composites angenama-solvent emkhakheni wokufaka okuguquguqukayo kukhuthaze ukunwetshwa kwawo kwimikhakha ehlobene. Njengamanje, kunezindawo ezikhethekile lapho zisetshenzisiwe:

4.1 Solvent Free Pet Pet Sheet Packpaking

Amashidi we-pet akhiwe ikakhulukazi ngezinto ezifuywayo ezinobukhulu be-0.4mm noma ngaphezulu. Ngenxa yobukhulu nobulukhuni balokhu okuqukethwe, kuyadingeka ukuthi ukhethe ukunamathela okunama-solvent okunama-adhesion aphezulu kanye nokubonakala kokwenza lokhu okuqukethwe okwenziwe ngalolu hlobo lwezinto ezihlanganisiwe, Ezinye zazo ezidinga ukunyathela, ngakho-ke izidingo zamandla we-peel nazo ziphezulu. I-WD8966 ekhiqizwe yizinto ezintsha ze-kangda zinokunamathela okuphezulu okuphezulu nokuvimbela ukunqanakalisa, futhi kusetshenziswe ngempumelelo ekuhlolweni kweshidi le-pet.

I-4.2 solvent free composite indwangu yokupakisha yendwangu engalukiwe

Izindwangu ezingezinhle zisetshenziswa kabanzi futhi zinezinhlobo ezahlukahlukene. Ukusetshenziswa kwezindwangu ezingezona ezilukiwe ezindaweni ezingenayo ze-solvent ikakhulukazi kuya ngobukhulu bendwangu engalukiwe kanye nobukhulu bemicu. Ukukhuluma, umxhwele indwangu engekho, ingcono inhlanganisela engenayo ye-solvent. Njengamanje, ingxenye eyodwa ye-polyurethane hot melt adhesive isetshenziselwa kakhulu izindwangu ezingezona ze-solvent-free angelo