I-Jiangsu Aokai New Materials, umkhiqizi ochwepheshile we-PTFE itheyiphu yokushisa ephezulu, uchaza kabanzi ngomehluko ekuzinzeni komkhiqizo olethwa izinga lokushisa legumbi kanye nokuvuthwa kwezinga lokushisa okuphezulu kwe-silicone ezwela ukucindezela-sensitive adhesive (PSA).
I. Umehluko ku-Crosslinking Network namandla Ahlangene
Ngaphansi kwamazinga okushisa enqubo angu-120°C~180°C, amaketanga e-molecular angaphakathi kwesendlalelo sokunamathisela athola ukunyakaza okwanele, okuphakamisa imvamisa yokushayisana kwamaqembu asebenzayo. Inethiwekhi enezinhlangothi ezintathu exhumene kakhulu, esabalaliswe ngokulinganayo, inika ingcina amandla aqinile okuhlangana ukuze imelane nokugeleza nokuguqulwa ngaphansi kwamazinga okushisa aphezulu.
2. Ukuvuthwa kwezinga lokushisa kwegumbi: Isakhiwo esixhumene okuxekethile
Ukusabela kuqhubeka kancane futhi ngokungaphelele ezingeni lokushisa le-ambient (~25°C), okuholela ekwakhiweni kwezindawo ezinqamulanayo ezingalingani kanye nenqwaba yamaketango amahhala angaphenduliwe avaleleke ngaphakathi kokunamathelayo. Izakhiwo ezinjalo ezixegayo zinenkinga yokungahlangani okwanele, futhi zithambe kalula noma zingene ngaphansi kokushisa.
3. Umthelela onqumayo kuzinsalela zokunamathela ngemva kokucwecwa
Itheyiphu evuthwe emazingeni okushisa aphezulu inamandla ahlangene anamandla kunama-interface adhesion force; lonke ungqimba lwe-adhesive luyaxebuka ngokuphelele ngaphandle kwezinsalela. Ngokuphambene, itheyiphu evuthiwe yezinga lokushisa legumbi ibhekana kalula nokwehluleka ukuhlangana, ingcina edabukile ishiywe kuma-substrates aboshwe futhi yakhe ukungcola okunenkani - leli igebe lokusebenza elinembile phakathi kwezinqubo ezimbili.
II. I-Interfacial Bond Amandla nge-PTFE Substrate
1. Ukuvuthwa kwezinga lokushisa eliphezulu: I-Chemical anchoring bonding
I-PTFE ifaka amandla angaphezulu aphansi futhi idinga ukuphathwa okukhethekile kwendawo noma ukumbozwa kwe-primer. Ukuvuthwa kwezinga lokushisa eliphezulu kunika amandla ukuphulukiswa okuhlangene kwe-primer ne-silicone adhesive kanyekanye, okukhiqiza amanethiwekhi axhuma angena phakathi kwamakhemikhali kusixhumi esibonakalayo. Amandla okubopha okuphezulu kakhulu avimbela ukunamathela okugcwele kokunamathela ku-substrate ngesikhathi sokusebenza okuphindaphindiwe kwezinga lokushisa eliphezulu.
2. Ukuvuthwa kwezinga lokushisa kwegumbi: Kuncike ekukhangisweni ngokomzimba
Izinga lokushisa le-ambient alikwazi ukwenza kusebenze amandla okusabela aphelele we-primer. Ukuhlangana phakathi kwe-adhesive ne-substrate ikakhulukazi kuncike ekukhangiseni okubuthakathaka kwe-intermolecular ngokomzimba, okunamandla okubopha angaphansi kakhulu kunokuphambana kwamakhemikhali.
3. Izingozi ezihlukene ze-delamination yezinga lokushisa eliphezulu
Izixhumi ezibonakalayo eziphethwe i-adsorption ebonakalayo zihluleka kalula ngaphansi kokuchayeka kwezinga lokushisa eliphezulu lesikhathi eside, okubangela ukudluliswa okunamathelayo okugcwele kuzingcezu zokusebenza kanye nendawo yendwangu ye-PTFE engenalutho. Ngokuphikisanayo, izendlalelo zokubambelela amakhemikhali ezakhiwe ngokuvuthwa kwezinga lokushisa eliphezulu zisusa ngokwethembeka izingozi ezinjalo ze-delamination.
III. Izinsalela zamangqamuzana aphansi kanye nokuguquguquka kwezinga lokushisa eliphezulu
1. Ukuvuthwa kwezinga lokushisa eliphezulu: Ukususwa kokungcola okwanele ngaphambi kokulethwa
Inqubo yokuvuthwa kwezinga lokushisa eliphezulu isebenza njengesigaba sokuhlanza sangaphambi kwesikhathi, esicishe sisuse izinto ezishintshashintshayo ezihlanganisa ama-catalysts, uwoyela we-silicone wamangqamuzana aphansi kanye nemikhiqizo yokusabela. Isendlalelo se-adhesive esiqediwe sihlala sihlanzekile ngokukhipha okuguquguqukayo okungatheni ngesikhathi sokusetshenziswa.
2. Ukuvuthwa kwezinga lokushisa kwegumbi: Izinto ezinkulu ezinamangqamuzana aphansi ezivaleleke ngaphakathi
Izingxenyana zamangqamuzana aphansi zihlala zivaliwe ngaphakathi kwe-adhesive matrix ekamelweni lokushisa. Uma i-tape iqala ukuchayeka emazingeni okushisa angaphezu kuka-200 ° C, lezi zinto zishintshashintsha ngokushesha futhi zanda ngobudlova.
3. Imithelela elimazayo ekuzinzeni
Ukuguquguquka okugxilile kwezinhlanganisela zamangqamuzana aphansi kubangela ukubhamuza, amabhamuza kanye nokulahleka kwe-tack ebukhali kutheyiphu. Ingase futhi ishiye amabala kawoyela we-silicone emikhiqizweni evalwe ngokushisa ngemva kwemvula enezinga lokushisa eliphezulu. Ngakho-ke, itheyiphu evuthiwe yezinga lokushisa legumbi ibonisa ukusebenza okungazinzile ekushiseni kokuqala, ukwephula izindinganiso eziqinile zokuhlanzeka zikagesi, ukupakishwa kokudla nezinye izimboni ezinembayo.
1. Ukuvuthwa kwezinga lokushisa eliphezulu: Isimo esizinzile ngokwe-Thermodynamically ekulethweni
Ukuvuthwa kwezinga lokushisa eliphezulu kubangela ukusabela okuxhumanisayo cishe kuze kuqedwe, ngakho-ke amateyipu ashiya imboni namamethrikhi okusebenza azinzile. Izinkomba ezibalulekile ezifana namandla ekhasi kanye nokubamba amandla kuhlala kungashintshi phakathi nomjikelezo wesevisi, ngaphandle kokuncipha okusobala kwangemuva kokwelapha, ukuqina noma ukushintshashintsha kobukhulu, okuletha ukusebenza okubikezelwe kakhulu.
2. Ukuvuthwa kwezinga lokushisa kwegumbi: Ukuvuthwa kwesibili okuqhubekayo phakathi nesevisi
Itheyiphu ephulukisiwe yokushisa kwegumbi iba nokusabela okungaphelele kokuphambana lapho kuvezwe kumazinga okushisa aphezulu kusayithi yekhasimende. Ukuqina kancane kancane kanye ne-embrittle kwenzeka ngokuhamba kwesikhathi; amandla e-peel akhuphuka kuqala bese ehla kakhulu, futhi i-tack ingase ilahleke ngokuphelele ezimeni ezinzima.
3. Ukuqhathanisa okuphelele kokwethembeka kwenkonzo
Izuza ezakhiweni zamakhemikhali ezizinzile, itheyiphu evuthwe emazingeni okushisa aphezulu igcina amandla okubambile avelele ngaphansi kwezimo zokusebenza eziqhubekayo ezingu-260°C, imelana nokushelela nokugoqa emaphethelweni. Ukusebenza kwetheyiphu yegumbi lokushisa elivuthiwe kuqhubekela phambili, okwenza izinqubo zokukhiqiza ezingaguquki zingenzeki. Umehluko oyinhloko uwukuthi ukuvuthwa kwezinga lokushisa eliphezulu kuqeda zonke izinguquko zamakhemikhali ezingazinzile ngaphambi kokulethwa, okuqinisekisa ukwethembeka okuphezulu kokusebenza kwabasebenzisi bokugcina.
Okuqukethwe okungenhla kwezobuchwepheshe kunikezwa ngu I-Jiangsu Aokai New Materials Technology Co., Ltd.
Uma ufuna ukuthola imininingwane eningiliziwe, izimo zohlelo lokusebenza nezixazululo ezenziwe ngokwezifiso zephothifoliyo yethu yomkhiqizo ogcwele ohlanganisa indwangu ye-PTFE yokushisa okuphezulu, i-PTFE high-temperature adhesive tape, PTFE high-temperature mesh belt, ibhande lokucindezela ukushisa elingenamthungo, indwangu ye-PTFE enohlangothi olulodwa, ulwazi olunokushisa okuphezulu okuhambisanayo nengilazi ekwazi ukumelana nokushisa sicela usithinte:
· Inombolo Yocingo Yesevisi: Mnu. Guo +86 18944819998
· Inombolo Yezinkonzo: Mnu. Liu +86 13705266308
Sihlala sinamathela kufilosofi yesevisi egxile ekuqeqesheni nasekuthembekeni, sinikeza ngenhliziyo yonke izixazululo zezimboni kanye nenkonzo yamakhasimende ecabangelayo kubo bonke ozakwethu!
