Ngokombono wezinto eziluhlaza kunye neenkqubo, kukho izizathu ezisibhozo zokungadibani kakuhle kweefilimu ezihlanganisiweyo: umlinganiselo wokuncamathelisa ongalunganga, ukugcinwa kokuncamathelisa okungafanelekanga, idiluent.inamanzi, intsalela yotywala, intsalela ye-solvent, i-adhesive eninzi yokwambathisa, ukungonelanga kwexesha lokunyanga kunye nobushushu, kunye nezongezo.
1. Umlinganiselo wokuncamathela ongalunganga
Umlinganiselo wokuncamathelisa ulinganiswe ngendlela engafanelekanga, nto leyo ebangela ukungonelanga kokunyanga. Kule nkalo, kuyimfuneko ukulinganisa zonke izinto kunye nokurekhoda isixa sokuhlola lula; Okwesibini, i-adhesive elungiselelwe kufuneka ixutywe ngokupheleleyo ngendlela echanekileyo yokuphepha ukuxubana kwendawo engalinganiyo.
2.Ukugcinwa kwe-adhesive engafanelekanga
Ukugcinwa okungafanelekanga kwe-adhesive kubangela ukutywinwa okungaphelelanga kwe-ejenti yokunyanga, kubangela ukuba iphendule ngomswakama emoyeni kwaye idle enye inxalenye. Ngenxa yoko, umxholo onganeleyo we-arhente yokunyanga kwenzeka ngexesha lokuxuba. Ngoko ke, kuyimfuneko ukujonga imeko yokutywinwa kwe-adhesive ngaphambi kokusetyenziswa.
3.Idiluent inamanzi
I-diluent ayisulungekanga ngokwaneleyo kwaye inamanzi agqithisileyo, utywala benza umlinganiselo wokuncamathelisaukungalingani. Ukugcinwa kwe-diluent kufuneka ivalwe ngokufuma emoyeni ekungeneni, kwaye umxholo wamanzi we-diluent kufuneka uhlolwe rhoqo.
4. Intsalela yotywala
Ukusetyenziswa kwe-inki enyibilikayo yotywala okanye i-inki encinci ye-alcohol ayimiswanga, intsalela eninzi, ngokoukuba ukusabela nge-ejenti enyangayo, kukhokelela ekuncangathi. I-inki enyibilikayo yotywala kufuneka isetyenzisweUkuncamathelisa utywala-enyibilikayo, ushicilelo isinyibilikisi kangangoko kunokwenzeka hayi ukusebenzisa utywala ratio.
5. Intsalela yokunyibilikisa
Kukho i-solvent eninzi kakhulu eseleyo kwifilimu ngexesha lenkqubo edibeneyo, kwaye i-solvent ihlanganiswe kwi-adhesive, ethintela ukuphilisa. Kuyimfuneko ukujonga rhoqo ukuba i-inlet kunye nokukhupha umoya wenkqubo yokomisa iyinto eqhelekileyo, kwaye ulawule isantya se-compound xa amanzi e-gluing ekhulu.
6. Ukugqithisa okugqithisileyo ubuninzi bokunamathela
I-adhesive igqunywe kakhulu, kwaye ububanzi befilimu bukhulu kakhulu, kubangele ukucothaukuqina kwangaphakathi kwe-adhesive. I-adhesive coating kufuneka ifaneleke kwaye ukunyanga kufuneka kwanele.
I-7.Ixesha elinganeleyo lokunyanga kunye nobushushu
Ubushushu bokunyanga buphantsi kakhulu, ukunyangwa kucotha, kwaye ukudibanisa okunqamlezayo akwanelanga. Ukushisa okufanelekileyo kokunyanga kufuneka kukhethwe, ixesha lokunyanga kufuneka lanele, kwaye i-adhesive yokunyanga ngokukhawuleza kufuneka ikhethwe ukuba kuyimfuneko. Ixesha elaneleyo lokunyanga, ukushisa akukwazi ukufikelela, ngakumbi kwiqondo lokushisa eliphezulubuyisela iipowutshi, iya kubangela ukuprintwa kombala wombala okanye ukuhanjiswa kombala ngexesha lobushushu obuphezulu.
8. Izongezo
Impembelelo yezongezo kwi-substrate yefilimu edibeneyo, efana neyongezelelweyo kwi-PVDC inokulibazisakwaye uthintele ukunyangwa kokuncamathela okuncamathelayo, isithambisi kwiPVC sisabela nge-NCO.iqela le-arhente yokunyanga, kunye ne-plasticizer ye-PVC ethambileyo inokungena kwi-adhesive, eya kuthiukunciphisa amandla okudibanisa kunye nokuzinza kwe-thermal, ngoko ke ukusetyenziswa kwe-arhente yokunyanga kufuneka kubeukwanda ngokufanelekileyo.
Ixesha lokuposa: Jul-10-2023
