Lub hauv paus ntsiab lus rau kev xaiv cov khoom siv TPU rau kev ua haujlwm siabPPFyog xaiv Aliphatic TPU. Nws txiav txim siab qhov kev tiv thaiv daj ntawm zaj duab xis, kev ruaj khov, thiab kev ua tau zoo tag nrho - qhov no yog qhov sib txawv tseem ceeb ntawm TPU uas muaj ntxhiab tsw qab.
Aliphatic vs. Aromatic: Txoj Cai "Golden Rule" ntawm Kev Xaiv Khoom Siv
Lub hauv paus ntsiab lus thib ib yog: Nyiam Aliphatic TPU, zam Aromatic TPU. Ob qho tib si muaj cov ntu tawv thiab mos, tab sis hom diisocyanate hauv ntu tawv ua rau muaj qhov sib txawv tseem ceeb rauCov ntawv thov PPF.
| Kev sib piv | Aliphatic TPU Pom Zoo | Tsis Pom Zoo Kom Siv TPU Uas Muaj Tsw Qab |
|---|---|---|
| Cov Qauv Tshuaj | Tsis muaj cov nplhaib benzene uas yooj yim oxidized; ruaj khov hauv tshuaj lom neeg. | Muaj cov nplhaib benzene uas yooj yim oxidize hauv qab UV raug. |
| Kev Tiv Thaiv Kev Yellowing | Zoo heev. >5 zaug zoo dua li aromatic; tsawg kawg ΔYI tom qab 3000h UV raug. | Phem heev. Daj sai sai thaum muaj UV, feem ntau pom daj hauv 6-12 lub hlis. |
| Kev Tiv Thaiv Huab Cua | Zoo heev. Kev tiv taus ntev mus rau UV, kub siab, av noo. | Pluag. Yooj yim rau kev laus thiab tawg yooj yim sab nraum zoov. |
| Cov Ntawv Thov Tseem Ceeb | PPF qib siab, aerospace, kev kho mob, thiab lwm yam. | Khau, khoom siv hauv kev lag luam, cov yeeb yaj kiab sab hauv tsev uas tsis yog qhov tseem ceeb rau kev tiv thaiv huab cua. |
| Tus nqi | Siab dua. Kim dua 30-50% dua li cov tshuaj tsw qab. | Qis dua. |
Hauv kev luv luv: Txhawm rau kom ntseeg tau tias muaj kev pom tseeb ntev thiab tsis muaj daj, koj yuav tsum xaiv Aliphatic TPU.
Kev Xaiv Seem Mos rau AliphaticTPUTsom ntsoov rau Polycaprolactone
Hauv aliphatic TPU, hom polyol (mos mos) ntxiv txiav txim siab lub zog thiab kev ua haujlwm ntev.
| Hom TPU (Seem Mos) | Cov Nta Tseem Ceeb & Cov Zoo | Cov Kev Tsis Zoo / Cov Kev Txwv Tseem Ceeb | Kev tsim nyog rau PPF |
|---|---|---|---|
| Polycaprolactone | Tus yeej txhua yam. Ua ke muaj zog thiab tiv taus kev sib txhuam (zoo li polyester) nrog rau kev tiv taus hydrolysis zoo heev (zoo li polyether). | Tus nqi siab; feem ntau siv rau hauv cov khoom lag luam zoo tshaj plaws. | (Zoo dua). Qhov kev xaiv zoo tshaj plaws rau cov hom PPF ua lag luam, sib npaug ntawm kev ruaj khov mus sij hawm ntev thiab kev tiv thaiv zoo tshaj plaws. |
| Polycarbonate | Zoo heev rau huab cua, lub zog zoo thiab hydrolysis tsis kam. | Tus nqi siab heev; txwv rau cov ntawv thov niche nrog cov huab cua xav tau heev. | (Zoo heev). Kev ua tau zoo heev, tab sis tus nqi txwv tsis pub siv dav. |
| Polyether | Tus yeej ntawm kev tiv taus hydrolysis. Tswj cov khoom zoo heev nyob rau hauv qhov chaw noo noo thiab los nag. | Lub zog kho tshuab tsis muaj zog - qhov tsis kam ntawm kev rhuav / tho qhov me ntsis dua li polyester. | (Qhov zoo ntawm qhov xwm txheej). Zoo tagnrho rau cov tsheb nyob rau hauv huab cua ntub/av noo tas li. |
| Polyester | Vaj Ntxwv ntawm lub zog lub cev. Lub zog tensile zoo heev, tiv taus kev sib txhuam, lub zog tsim kua muag. | Tsis kam ua hydrolysis. Cov ester linkages lwj hauv cov huab cua noo, ua rau muaj kev pheej hmoo ntawm embrittlement thiab tawg raws sijhawm. | (Tsis pom zoo). Txawm hais tias muaj zog thaum pib, kev tiv thaiv hydrolysis tsis zoo yog qhov tsis zoo rau PPF. |
Cov Lus Qhia Txog Kev Xaiv:
- Kev xaiv zoo tshaj plaws: Aliphatic + Polycaprolactone TPU. suav tias yog "kev sib xyaw ua ke kub" rau PPF zoo tshaj plaws, muab kev sib npaug zoo tshaj plaws ntawm kev tiv thaiv thiab kev ua haujlwm ntev.
- Kev tsom mus rau ib puag ncig: Rau cov tsheb nyob rau hauv thaj chaw ntub dej / av noo tas li, polyether muaj kev tiv thaiv hydrolysis zoo dua.
- Ceev faj: Qee cov PPF pheej yig dua tseem siv cov tshuaj aromatic + polyester TPU. Txawm hais tias pheej yig, lawv muaj kev pheej hmoo siab ntawm kev daj thiab hydrolysis - tsis pom zoo.
Lub sijhawm tshaj tawm: Plaub Hlis-15-2026