Muaj ntau tus neeg siv khoom tau tshaj tawm tias TPU pob tshab thaum nws thawj zaug ua, vim li cas nws thiaj li tsis pom tseeb tom qab ib hnub thiab zoo li xim zoo li mov tom qab ob peb hnub? Qhov tseeb, TPU muaj qhov tsis zoo ntuj, uas yog tias nws maj mam hloov daj raws sijhawm. TPU nqus cov dej noo los ntawm huab cua thiab hloov dawb, lossis qhov no yog vim muaj kev tsiv teb tsaws chaw ntawm cov khoom ntxiv thaum lub sijhawm ua tiav. Qhov laj thawj tseem ceeb yog tias cov roj nplua nyeem tsis pom tseeb, thiab daj yog tus yam ntxwv ntawm TPU.
TPU yog cov tshuaj daj, thiab MDI hauv ISO yuav tig daj thaum raug UV irradiation, qhia tias TPU daj yog ib yam khoom. Yog li ntawd, peb yuav tsum ncua lub sijhawm daj ntawm TPU. Yog li yuav ua li cas tiv thaiv TPU kom tsis txhob daj?
Txoj Kev 1: Tsis Txhob Ua
1. Xaiv los tsim cov khoom dub, daj, lossis tsaus thaum pib tsim cov khoom tshiab. Txawm tias cov khoom TPU no tig daj los xij, lawv cov tsos tsis pom, yog li ntawd tsis muaj teeb meem ntawm kev daj.
2. Tsis txhob cia PU raug tshav ntuj ncaj qha. Qhov chaw cia PU yuav tsum txias thiab muaj cua nkag tau, thiab PU tuaj yeem qhwv rau hauv hnab yas thiab muab tso rau qhov chaw uas tsis raug tshav ntuj.
3. Tsis txhob ua kom muaj kuab paug thaum lub sijhawm ua haujlwm tes. Ntau yam khoom PU raug kuab paug thaum lub sijhawm cais lossis khaws cia, ua rau daj xws li cov hws tib neeg thiab cov kuab tshuaj organic. Yog li ntawd, cov khoom PU yuav tsum tau them sai sai rau qhov huv ntawm lub cev sib cuag thiab txo qis cov txheej txheem cais ntau li ntau tau.
Txoj Kev 2: Ntxiv cov khoom xyaw
1. Xaiv cov ntaub ntawv TPU ncaj qha uas ua tau raws li cov lus qhia tiv taus UV.
2. Ntxiv cov tshuaj tiv thaiv kev daj. Yuav kom txhim kho lub peev xwm tiv thaiv kev daj ntawm cov khoom PU, nws feem ntau yuav tsum ntxiv cov tshuaj tiv thaiv kev daj tshwj xeeb rau cov khoom siv raw. Txawm li cas los xij, cov tshuaj tiv thaiv kev daj kim heev, thiab peb kuj yuav tsum xav txog lawv cov txiaj ntsig kev lag luam thaum siv lawv. Piv txwv li, peb lub cev dub tsis rhiab rau kev daj, yog li peb tuaj yeem siv cov khoom siv raw pheej yig dua uas tsis yog tshuaj tiv thaiv kev daj yam tsis muaj cov tshuaj tiv thaiv kev daj. Raws li cov tshuaj tiv thaiv kev daj yog cov khoom siv raw ntxiv rau cov khoom A, peb xav tau kev sib tov thaum sib tov kom ua tiav kev faib tawm sib npaug thiab cov nyhuv tiv thaiv kev daj, txwv tsis pub kev daj hauv zos yuav tshwm sim.
3. Tsuag xim daj uas tiv taus. Feem ntau muaj ob hom kev txau xim, ib qho yog txau thaum pwm thiab lwm qhov yog txau thaum pwm tawm. Kev txau xim daj uas tiv taus yuav tsim ib txheej tiv thaiv rau ntawm qhov chaw ntawm PU cov khoom tiav, zam kev ua qias tuaj thiab daj uas tshwm sim los ntawm kev sib cuag ntawm daim tawv nqaij PU thiab huab cua. Hom no tam sim no siv dav.
Txoj Kev 3: Hloov Khoom Siv
Feem ntau TPU yog TPU uas muaj ntxhiab tsw qab, uas muaj cov nplhaib benzene thiab tuaj yeem nqus tau lub teeb ultraviolet thiab ua rau daj. Qhov no yog qhov laj thawj tseem ceeb rau cov khoom TPU daj. Yog li ntawd, cov neeg hauv kev lag luam suav tias kev tiv thaiv ultraviolet, tiv thaiv daj, tiv thaiv kev laus thiab tiv thaiv ultraviolet ntawm TPU yog tib lub tswv yim. Ntau tus neeg tsim khoom TPU tau tsim aliphatic TPU tshiab los daws qhov teeb meem no. Aliphatic TPU molecules tsis muaj cov nplhaib benzene thiab muaj kev ruaj khov zoo, tsis txhob tig daj.
Tau kawg, aliphatic TPU kuj muaj nws qhov tsis zoo niaj hnub no:
1. Qhov nyuaj ntawm qhov nyuaj yog qhov nqaim, feem ntau ntawm 80A-95a
2. Cov txheej txheem ua tiav yog qhov ceev faj heev thiab yooj yim rau kev ua tiav
3. Tsis muaj pob tshab, tsuas yog ua tiav pob tshab ntawm 1-2 hli. Cov khoom tuab zoo li me ntsis pos huab
Lub sijhawm tshaj tawm: Kaum Ib Hlis-25-2024