Umgomo oyinhloko wokukhetha izinto ze-TPU ukuze zisebenze kahle kakhuluI-PPFukukhetha i-Aliphatic TPU. Ngokuyisisekelo inquma ukumelana kokuphuzi kwefilimu, ukuqina kwayo, kanye nokusebenza kwayo konke – lokhu umehluko obalulekile ku-TPU enephunga elimnandi.
I-Aliphatic vs. Aromatic: “Umthetho Wegolide” Wokukhethwa Kwezinto Ezibonakalayo
Isimiso sokuqala sithi: Khetha i-Aliphatic TPU, gwema i-Aromatic TPU. Zombili zakhiwe izingxenye eziqinile nezithambile, kodwa uhlobo lwe-diisocyanate engxenyeni eqinile lwenza umehluko omkhulu ku-Izinhlelo zokusebenza ze-PPF.
| Ukuqhathanisa | Kunconywe i-Aliphatic TPU | I-TPU Enuka Kahle Ayinconywa |
|---|---|---|
| Isakhiwo Samakhemikhali | Ayinawo ama-benzene rings alula ukuwaxilisa; ayishintshi ngamakhemikhali. | Iqukethe izindandatho ze-benzene ezikwazi ukugcwala kalula ngaphansi kokukhanya kwe-UV. |
| Ukumelana Nokuphuzi | Kuhle kakhulu. Kungcono kakhulu ngokuphindwe kahlanu kunephunga elimnandi; i-ΔYI encane ngemva kokuvezwa yi-UV amahora angu-3000. | Kubi kakhulu. Kuphuzi ngokushesha ngaphansi kwe-UV, kuvame ukubonakala kuphuzi phakathi nezinyanga eziyi-6-12. |
| Ukumelana Nesimo Sezulu | Okuhle Kakhulu. Ukumelana isikhathi eside ne-UV, ukushisa okuphezulu, nomswakama. | Impofu. Iyakwazi ukuguga nokuqhekeka ngaphandle. |
| Izicelo Eziyinhloko | I-PPF ephezulu, izindiza, ezokwelapha, njll. | Izicathulo, izimpahla zezimboni, amafilimu angaphakathi lapho isimo sezulu singabi bucayi khona. |
| Izindleko | Iphakeme. Ibiza kakhulu ngo-30-50% kune-aromatic. | Ngaphansi. |
Kafushane: Ukuze uqinisekise ukucaca okuhlala isikhathi eside futhi kungabikho ukuphuzi, kufanele ukhethe i-Aliphatic TPU.
Ukukhethwa Kwezingxenye Ezithambile ze-AliphaticI-TPUGxila ku-Polycaprolactone
Ngaphakathi kwe-TPU ye-aliphatic, uhlobo lwe-polyol (ingxenye ethambile) lunquma ngokwengeziwe amandla omzimba nokuqina.
| Uhlobo lwe-TPU (Ingxenye Ethambile) | Izici Eziyinhloko Nezinzuzo | Izinkinga Eziyinhloko / Ukulinganiselwa | Ukufaneleka kwe-PPF |
|---|---|---|---|
| I-Polycaprolactone | Iqhawe eliphelele. Ihlanganisa ukumelana namandla aphezulu kanye nokuhuzuka (njenge-polyester) nokumelana okuhle kakhulu kwe-hydrolysis (njenge-polyether). | Izindleko eziphezulu; ngokuvamile zisetshenziswa emikhiqizweni ephambili ye-flagship. | (Okuthandwayo). Ukukhetha okuphezulu kwemikhiqizo ehamba phambili ye-PPF, okulinganisela ukuqina kwesikhathi eside kanye nokuvikelwa okuphezulu. |
| I-Polycarbonate | Ukumelana nesimo sezulu okuhle kakhulu, amandla amahle kanye nokumelana ne-hydrolysis. | Izindleko ziphezulu kakhulu; kukhawulelwe ekusetshenzisweni okukhethekile okudingakala kakhulu ekushiseni kwesimo sezulu. | (Kuhle kakhulu). Ukusebenza okuhle kakhulu, kodwa izindleko zivimbela ukusetshenziswa kabanzi. |
| I-Polyether | Iqhawe lokumelana ne-hydrolysis. Igcina izakhiwo kahle kakhulu ezindaweni ezinomswakama nezinemvula. | Amandla okusebenza abuthakathaka – ukumelana nokudabuka/ukubhoboza okuphansi kancane kune-polyester. | (Inzuzo yesimo). Ilungele izimoto ezisesimweni sezulu esimanzi njalo/esinomswakama. |
| I-Polyester | Inkosi yamandla angokomzimba. Amandla amahle kakhulu okubamba, ukumelana nokuklwebheka, amandla okudabuka. | Ukumelana okungekuhle kwe-hydrolysis. Ukuxhumana kwe-Ester kuyawohloka ezimweni ezimanzi, okubangela ingozi yokuqhekeka nokuqhekeka ngokuhamba kwesikhathi. | (Akukhuthazwa). Naphezu kwamandla aphezulu okuqala, ukumelana ne-hydrolysis okungekuhle kuyiphutha elibulalayo le-PPF. |
Iseluleko Sokukhetha:
- Ukukhetha okuhle kakhulu: I-Aliphatic + Polycaprolactone TPU. Ibhekwa njengenhlanganisela yegolide ye-PPF ephezulu, inikeza ibhalansi engcono kakhulu yokuvikela kanye nokuqina kwesikhathi eside.
- Okugxile emvelweni: Ezimotweni ezihlala zimanzi/zinomswakama, i-polyether inikeza ukumelana okuphezulu kwe-hydrolysis.
- Qaphela: Amanye ama-PPF ashibhile asasebenzisa i-TPU e-aromatic + polyester. Nakuba eshibhile, anezingozi eziphezulu zokuphuzi kanye ne-hydrolysis - akukhuthazwa.
Isikhathi sokuthunyelwe: Ephreli-15-2026