Wapamwamba kwambirifilimu yoteteza utoto (PPF)imadalira Thermoplastic Polyurethane (TPU) ngati maziko ake ofunikira, omwe amatsimikiza kulimba kwa filimuyi, kukongola kwake, ndi magwiridwe antchito ake. Pakadali pano, TPU imagawidwa makamaka m'mitundu ya aliphatic ndi aromatic, ndipo kusiyana kwawo kwakukulu kuli mu "kukana kwachikasu." Gome ili pansipa likuwonetsa bwino kusiyana kwakukulu pakati pa mitundu iwiri ya TPU:
| Khalidwe | Aliphatic TPU | TPU Yonunkhira |
|---|---|---|
| Kapangidwe ka Mankhwala | Mulibe mphete za benzene (monga, zochokera ku HDI), zokhazikika bwino. | Muli ndi mapangidwe a mphete ya benzene (monga, kutengera MDI). |
| Zinthu Zazikulu | Kukana kwabwino kwambiri kwa chikasu: Kukana kwa nthawi yayitali ku kuwala kwa UV, ndi nthawi ya chitsimikizo yomwe nthawi zambiri imapitirira zaka 10. Kapangidwe kolimba: Kulemera kwambiri kwa mamolekyulu, komwe kumapereka kukana bwino kukanda ndi kukanda, komanso mphamvu yayikulu komanso yolimba. | Zimakhala zachikasu: Mphete za benzene zimatha kusungunuka zikakhudzidwa ndi kuwala kwa UV, zomwe zingayambitse chikasu choonekera mkati mwa zaka 3-5. Zimasinthasintha bwino, koma nthawi zambiri zimakhala zochepa mphamvu ndi kukana kukanda poyerekeza ndi mitundu ya aliphatic. |
| Udindo wa Msika | Zipangizo zoyambira za PPF yapamwamba, zomwe zimakhala ndi mtengo wokwera. | Zipangizo zoyambira za PPF yapakatikati mpaka yotsika mtengo, zotsika mtengo. |
Magulu Ena a TPU ndi Kuphatikizika kwa PPF
Kupatula magulu omwe ali pamwambapa, TPU ikhozanso kugawidwa kutengera gawo lake lofewa m'magulu opangidwa ndi polyester ndi polyether. TPU yopangidwa ndi polyester imapereka mphamvu yabwino, kukana kukwawa, komanso kukana mafuta; TPU yopangidwa ndi polyether imapereka kukana kwabwino kwa hydrolysis komanso kusinthasintha kotsika kwa kutentha. Zipangizo zamakono zapamwamba za PPF nthawi zambiri zimagwiritsa ntchito njira zabwino kwambiri kuti zigwirizane ndi zinthuzi. PPF yathunthu ndi kapangidwe ka zigawo zambiri. Kupatula TPU base layer, imaphatikizapo:
- Chigawo Chomatira: Chimatsimikizira kuti chimamatira bwino komanso kuti palibe zotsalira zomwe zimachotsedwa popanda kuwononga utoto woyambirira. Chimafuna mphamvu yomatira kwambiri komanso kukana kwa UV. Zogulitsa zapamwamba zimayang'ananso pakuletsa kusamuka kwa pulasitiki kuti glue isagwire ntchito.
- Chovala Chapamwamba Chogwira Ntchito: Chovala chakunja, chomwe chimatsimikizira mwachindunji zomwe wogwiritsa ntchito akukumana nazo. Ntchito zazikulu zimaphatikizapo kudzipukuta (kudalira ma hydrogen bonds mkati mwa chovalacho omwe amakonza mikwingwirima yaying'ono ndi kutentha), mphamvu zowononga madzi ndi oleophobic (kuchepetsa kuyeretsa), ndikupereka mawonekedwe owoneka bwino monga kunyezimira kwambiri kapena matte finishes.
Momwe Mungasankhire ndi Kugulitsa Zinthu
Posankha PPF, kuwonjezera pa kutsimikizira kugwiritsa ntchito aliphatic TPU, mutha kuganiziranso izi:
- Chongani Chitsimikizo Chovomerezeka: Zogulitsa zodalirika za TPU nthawi zambiri zimakhala ndi chitsimikizo chovomerezeka cha zaka 10 kapena kuposerapo, zomwe zimatsimikizira kuti magwiridwe antchito a anti-chikasu ndi ofooka.
- Yang'anani pa Ukadaulo wa Top Coat: Top coat imagwirizana mwachindunji ndi kusowa madzi m'thupi, mphamvu yodzichiritsa yokha, komanso moyo wautali. Funsani za ntchito yeniyeni ya chovalacho.
- Chenjerani ndi Misampha Yotsika Mtengo: Chenjerani ndi zonena za "aliphatic TPU" pamitengo yotsika kwambiri, chifukwa zingakhale zolakwika.
Ponena za zomwe zikuchitika, chifukwa cha kufunikira kwa ogula kwa khalidwe ndi kulimba, TPU yogwira ntchito bwino kwambiri, yomwe imayimiridwa ndi zipangizo mongaLINGHUA TPU mndandanda, ikukhala chisankho chodziwika bwino pamsika.
Nthawi yotumizira: Januwale-13-2026