Ukuhlaziywa Okuphelele kweI-TPU PelletUbulukhuni: Amapharamitha, Izicelo kanye Nezinyathelo Zokuqapha Zokusetshenziswa
I-TPU (i-Thermoplastic Polyurethane), njengezinto ze-elastomer ezisebenza kahle kakhulu, ubulukhuni bama-pellets ayo buyipharamitha eyinhloko enquma ukusebenza kwezinto kanye nezimo zokusetshenziswa kwazo. Ububanzi bobulukhuni bama-pellets e-TPU bubanzi kakhulu, ngokuvamile busukela ku-60A ethambile kakhulu kuya ku-70D eqinile kakhulu, futhi amazinga ahlukene obulukhuni ahambisana nezakhiwo zomzimba ezihluke ngokuphelele.Uma ubulukhuni buphakeme, kulapho ukuqina nokumelana nokuguquguquka kwezinto ezibonakalayo kuqina khona, kodwa ukuguquguquka nokuqina kuzoncipha ngokufanele; ngokuphambene nalokho, i-TPU enobulukhuni obuphansi igxila kakhulu ekuthambekeni nasekululameni okunwebekayo.
Ngokuphathelene nokulinganisa ubulukhuni, ama-durometer e-Shore avame ukusetshenziswa embonini ukuhlola. Phakathi kwawo, ama-durometer e-Shore A afanelekela ububanzi obuphakathi nobuphansi bobulukhuni obungu-60A-95A, kuyilapho ama-durometer e-Shore D esetshenziswa kakhulu kwi-TPU enobulukhuni obuphezulu ngaphezu kuka-95A. Landela ngokuqinile izinqubo ezijwayelekile lapho ulinganisa: okokuqala, faka ama-pellet e-TPU ezingcezwini zokuhlola ezisicaba ezinobukhulu obungaphansi kuka-6mm, uqinisekise ukuthi ubuso abunazo iziphambeko ezifana nama-bubbles kanye nemihuzuko; bese uvumela izingcezu zokuhlola zime endaweni enezinga lokushisa elingu-23℃±2℃ kanye nomswakama ohlobene ongu-50%±5% amahora angu-24. Ngemva kokuba izingcezu zokuhlola sezizinzile, cindezela i-indenter ye-durometer ngokuqondile ebusweni bengcezwi yokuhlolwa, uyigcine imizuzwana emi-3 bese ufunda inani. Eqenjini ngalinye lamasampula, kala okungenani amaphuzu ama-5 bese uthatha isilinganiso ukuze unciphise amaphutha.
I-Yantai Linghua New Material CO., LTD.inomugqa ophelele womkhiqizo ohlanganisa izidingo zobunzima obuhlukene. Ama-TPU pellets obulukhuni obuhlukene anezigaba ezicacile zomsebenzi emikhakheni yokusetshenziswa:
- Ngaphansi kuka-60A (okuthambile kakhulu): Ngenxa yokuthinta kwazo okuhle kakhulu kanye nokunwebeka, zivame ukusetshenziswa emikhiqizweni enezidingo eziphezulu kakhulu zokuthamba njengamathoyizi ezingane, amabhola okubamba okunciphisa ukucindezeleka, kanye ne-insole linings;
- 60A-70A (ethambile): Ukulinganisela ukuguquguquka nokumelana nokuguguleka, kuyinto efanelekile yezicathulo zezemidlalo, izindandatho zokuvala ezingangeni manzi, amashubhu okufaka amanzi neminye imikhiqizo;
- 70A-80A (ethambile ngokumaphakathi): Ngokusebenza okulinganiselwe okuphelele, isetshenziswa kabanzi ezimweni ezifana nezimbobo zekhebula, izembozo zesiteringi semoto, kanye nezindawo zokuvakasha zezokwelapha;
- 80A-95A (okunzima okuphakathi kuya kokunzima): Ukulinganisela ukuqina nokuqina, kufanelekile ezingxenyeni ezidinga amandla athile okusekela njengama-printer rollers, izinkinobho zokulawula umdlalo, kanye namakesi efoni ephathekayo;
- Ngaphezulu kuka-95A (okuqinile kakhulu): Njengoba inamandla aphezulu futhi imelana nokushayisana, isibe yinto ekhethwayo yamagiya ezimboni, izihlangu zemishini, kanye nama-shock pad emishini esindayo.
Uma usebenzisaAma-pellet e-TPU,amaphuzu alandelayo kufanele aqashelwe:
- Ukuhambisana kwamakhemikhali: I-TPU iyazwela ezinyibilikisini ze-polar (ezifana notshwala, i-acetone) kanye nama-asidi aqinile nama-alkali. Ukuthintana nazo kungabangela ukuvuvukala noma ukuqhekeka kalula, ngakho-ke kufanele kugwenywe ezindaweni ezinjalo;
- Ukulawula izinga lokushisa: Izinga lokushisa lokusetshenziswa kwesikhathi eside akufanele lidlule ku-80℃. Izinga lokushisa eliphezulu lizosheshisa ukuguga kwezinto. Uma zisetshenziswa ezimweni zokushisa okuphezulu, kufanele kusetshenziswe izithasiselo ezingamelani nokushisa;
- Izimo zokugcina: Le nto i-hygroscopic kakhulu futhi kufanele igcinwe endaweni evaliwe, eyomile futhi enomoya opholile enomswakama olawulwa ku-40%-60%. Ngaphambi kokusetshenziswa, kufanele yomiswe kuhhavini ongu-80℃ amahora angu-4-6 ukuvimbela amabhamuza ngesikhathi sokucubungula;
- Ukuzivumelanisa nokucubungula: I-TPU yobunzima obuhlukene idinga ukufanisa imingcele ethile yenqubo. Isibonelo, i-TPU eqinile kakhulu idinga ukwandisa izinga lokushisa lomgqomo libe ngu-210-230℃ ngesikhathi sokubumba ngomjovo, kuyilapho i-TPU ethambile idinga ukunciphisa ingcindezi ukuze igweme ukukhanya.
Isikhathi sokuthunyelwe: Agasti-06-2025