I-TPU enamathelayo ene-solvent-based viscosity enhle
mayelana ne-TPU
I-TPU(i-thermoplastic polyurethanes) ivala igebe lezinto ezibonakalayo phakathi kwamarabha namapulasitiki. Ububanzi bayo bezakhiwo ezibonakalayo buvumela i-TPU ukuthi isetshenziswe kokubili njengerabha eqinile kanye nobunjiniyela obuthambile be-thermoplastic.TPU bathole ukusetshenziswa okusabalele nokuduma ezinkulungwaneni zemikhiqizo, ngenxa yokuqina kwayo, ukuthambile kanye nokubalabala phakathi kwezinye izinzuzo. Ngaphezu kwalokho, kulula ukucubungula.
Njengezinto ezisafufusa zobuchwepheshe obuphezulu nezivumelana nemvelo, i-TPU inezakhiwo eziningi ezinhle kakhulu njengobubanzi obuqinile obubanzi, amandla aphezulu emishini, ukumelana nokubanda okuvelele, ukusebenza kahle kokucubungula, ukucekelwa phansi kwemvelo, ukumelana nowoyela, ukumelana namanzi nokumelana nesikhunta.
Isicelo
Izicelo: Izinto Ezinamathelayo ezincibilikayo, Amafilimu Anamathelayo Ancibilika Ngokushisayo, Ingcina Yezicathulo.
Amapharamitha
| Izakhiwo | Okujwayelekile | Iyunithi | D7601 | D7602 | D7603 | D7604 |
| Ukuminyana | I-ASTM D792 | g/cms | 1.20 | 1.20 | 1.20 | 1.20 |
| Ukuqina | I-ASTM D2240 | I-Shore A/D | 95/ | 95/ | 95/ | 95/ |
| Amandla Okuqina | I-ASTM D412 | I-MPa | 35 | 35 | 40 | 40 |
| Ukwelula | I-ASTM D412 | % | 550 | 550 | 600 | 600 |
| I-Viscosity (15% kuMEK.25°C) | I-SO3219 | Cps | 2000+/-300 | 3000+/-400 | 800-1500 | 1500-2000 |
| I-MnimmAction | -- | °C | 55-65 | 55-65 | 55-65 | 55-65 |
| Izinga le-Crystallization | -- | -- | Ngokushesha | Ngokushesha | Ngokushesha | Ngokushesha |
Amanani angenhla aboniswa njengamanani avamile futhi akufanele asetshenziswe njengokucaciswa.
Iphakheji
25KG/bag, 1000KG/pallet noma 1500KG/pallet, iplasitiki ecutshungulwayo
Ukuphatha kanye Nesitoreji
1. Gwema ukuphefumula imfucumfucu ecutshungulwa ngokushisa okushisayo
2. Imishini yokubamba imishini ingabangela ukwakheka kothuli. Gwema ukuphefumula uthuli.
3. Sebenzisa izindlela ezifanele zokubeka phansi lapho uphatha lo mkhiqizo ukuze ugweme ukukhokhiswa kwe-electrostatic
4. Amapellets aphansi angase ashelele futhi abangele ukuwa
Izincomo zesitoreji: Ukugcina ikhwalithi yomkhiqizo, gcina umkhiqizo endaweni epholile, neyomile. Gcina esitsheni esivalwe ngokuqinile.
Amanothi
1. Izinto ze-TPU ezonakele azikwazi ukusetshenziselwa ukucubungula imikhiqizo.
2. Ngaphambi kokubunjwa, kuyadingeka ukomisa ngokugcwele, ikakhulukazi ngesikhathi sokubunjwa kwe-extrusion, ukubunjwa kwe-blow, nokubunjwa kwefilimu, enezidingo eziqinile zokuqukethwe komswakama, ikakhulukazi ezikhathini zonyaka ezinomswakama kanye nezindawo ezinomswakama ophezulu.
3. Ngesikhathi sokukhiqiza, ukwakheka, isilinganiso sokuminyanisa, ukujula kwegroove, kanye ne-aspect ratio L/D yesikulufu kufanele kucatshangelwe ngokusekelwe kuzici zezinto. Izikulufu zokubumba umjovo zisetshenziselwa ukubumba umjovo, futhi izikulufu ze-extrusion zisetshenziselwa ukukhipha.
4. Ngokusekelwe ku-fluidity yezinto, cabangela isakhiwo sesikhunta, usayizi we-glue inlet, usayizi we-nozzle, isakhiwo sesiteshi sokugeleza, kanye nendawo yembobo yokukhipha umoya.
Izitifiketi
