Nheyo huru yekusarudza zvinhu zveTPU kuti zvishande zvakanakaPPFkusarudza Aliphatic TPU. Izvi zvinosarudza zvakanyanya kuramba kwefirimu richitsvuka, kugara kwenguva refu, uye kushanda kwaro - uyu ndiwo musiyano mukuru kubva kuaromatic TPU.
Aliphatic vs. Aromatic: "Mutemo weGoridhe" weKusarudza Zvinhu
Nheyo yekutanga ndeiyi: Sarudza Aliphatic TPU, dzivisa Aromatic TPU. Dzose dzine zvikamu zvakaoma nezvinyoro, asi rudzi rwe diisocyanate muchikamu chakaoma runoita mutsauko mukuru kuneZvikumbiro zvePPF.
| Kuenzanisa | Aliphatic TPU Inokurudzirwa | TPU Inonhuhwirira Haikurudzirwi |
|---|---|---|
| Maumbirwo emakemikari | Haina mhete dzebenzene dzinonyungudika nyore nyore; haichinji makemikari. | Ine mhete dzebenzene dzinokurumidza kusviba kana dzasviba neUV. |
| Kuramba kweYero | Yakanaka kwazvo. Zviri nani kupfuura kashanu pane zvinonhuhwirira; ΔYI shoma mushure mekuratidzwa neUV kwemaawa 3000. | Yakashata zvikuru. Inokurumidza kutsvuka kana yasviba neUV, uye inowanzoonekwa yero mukati memwedzi 6-12. |
| Kuramba Kwemamiriro Ekunze | Yakakwirira. Inodzivirira UV kwenguva refu, kupisa kwakanyanya, uye hunyoro. | Haana kunaka. Anogona kukwegura uye kusviba panze. |
| Zvikumbiro Zvikuru | PPF yepamusoro-soro, ndege, zvekurapa, nezvimwewo. | Shangu, zvinhu zvemumaindasitiri, mafirimu emumba asinganyanyi kukosha kana mamiriro ekunze akamira zvakanaka. |
| Mutengo | Yakakwira. Inodhura ne30-50% kupfuura aromatic. | Pasi. |
Muchidimbu: Kuti uve nechokwadi chekuti ruvara rwacho rwunogara kwenguva refu uye rusina kutsvuka, unofanira kusarudza Aliphatic TPU.
Kusarudzwa kweZvikamu Zvinyoro zveAliphaticTPU: Tarisa paPolycaprolactone
Mukati me aliphatic TPU, rudzi rwe polyol (chikamu chakapfava) runonyanya kusarudza simba remuviri uye kugara kwenguva refu.
| Rudzi rweTPU (Chikamu Chinyoro) | Zvinhu Zvikuru & Mabhenefiti | Zvikanganiso Zvikuru / Kusakwana | Kukodzera PPF |
|---|---|---|---|
| Polycaprolactone | Inoshanda nesimba rose. Inobatanidza simba rakawanda uye kuramba kukwesha (senge polyester) nekuramba kukwesha kwemvura zvakanaka (senge polyether). | Mutengo wakakwira; unowanzo shandiswa muzvigadzirwa zvepamusoro-soro. | (Zvinodiwa). Sarudzo yepamusoro yemakambani anotungamira ePPF, ichichengetedza kugara kwenguva refu uye dziviriro yepamusoro. |
| Polycarbonate | Kupisa kwakanaka, simba rakanaka uye kuramba hydrolysis. | Mutengo wakakwira kwazvo; unongogumira pakushandiswa kwakakosha uye kunodiwa zvakanyanya pakugadzirisa mamiriro ekunze. | (Zvakanaka kwazvo). Kushanda kwepamusoro-soro, asi mutengo unodzivisa kushandiswa kwakapararira. |
| Polyether | Inodzivirira hydrolysis. Inochengetedza zvivakwa zvakanaka munzvimbo dzine hunyoro uye dzinonaya mvura. | Simba remuchina risina kusimba - kuramba kubvaruka/kuboorwa kwakaderera zvishoma pane polyester. | (Zvakanakira mamiriro ezvinhu). Yakanakira mota dziri munzvimbo dzine mvura nguva dzose/dzine hunyoro. |
| Polyester | Mambo wesimba remuviri. Simba guru rekudhonza, kuramba kukwesha, simba rekukwesha. | Kusakwanisa hydrolysis zvakanaka. Ester linkages dzinoparara kana paine hunyoro, zvichiita kuti pave netsvina uye kutsemuka nekufamba kwenguva. | (Hazvikurudzirwi). Kunyangwe paine simba guru rekutanga, kusakwanisa kudzivirira hydrolysis idambudziko guru kune PPF. |
Zano rekusarudza:
- Sarudzo yakanakisisa: Aliphatic + Polycaprolactone TPU. Inoonekwa se "musanganiswa wegoridhe" wePPF yepamusoro, ichipa dziviriro yakanakisa uye kugara kwenguva refu.
- Yakatarisana nenzvimbo: Kune mota dziri munzvimbo dzine mvura/hunyoro nguva dzose, polyether inopa simba rekudzivirira hydrolysis.
- Chenjerera: Mamwe maPPF akachipa achiri kushandisa aromatic + polyester TPU. Kunyangwe akachipa, ane njodzi huru dzekuti ruvara ruve rweyero uye hydrolysis - hazvikurudzirwi.
Nguva yekutumira: Kubvumbi-15-2026