1. Kev txhais ntawm PET Film Materials
PET zaj duab xis khoom, lub npe tag nrho yog polyethylene terephthalate zaj duab xis khoom. Nws yog ib qho thermoplastic polyester thiab yog siv dav hauv ntau lub teb. PET zaj duab xis muaj cov pob tshab zoo, cov khoom siv kho tshuab, tshuaj lom neeg ruaj khov thiab lwm yam ntxwv, ua rau nws yog cov khoom siv tseem ceeb heev.
2. Cov yam ntxwv ntawm cov khoom siv PET zaj duab xis
1. Zoo mechanical zog
- PET zaj duab xis muaj lub zog tensile siab thiab lub zog tsim kua muag. Qhov no ua rau nws tsis yooj yim rau tawg nyob rau hauv tej yam sab nraud rog. Piv txwv li, hauv kev ntim khoom, nws tuaj yeem tiv thaiv cov khoom ntim tau zoo. Nws qhov cuam tshuam kuj tseem zoo. Piv nrog rau qee cov ntaub ntawv ua yeeb yaj kiab, nws tuaj yeem tiv thaiv kev sib tsoo sab nraud thiab extrusion zoo dua.
2. Muaj zog chemical stability
- Nws muaj kev ua siab ntev rau feem ntau cov roj, rog, acids, thiab alkalis. Nyob rau hauv ib puag ncig tshuaj sib txawv, nws tuaj yeem tswj hwm nws tus kheej kev ua haujlwm ruaj khov. Piv txwv li, nyob rau hauv cov zaub mov ntim, txawm tias nws los rau hauv kev sib cuag nrog cov roj los yog acidic tshuaj nyob rau hauv cov zaub mov, nws yuav tsis yooj yim reacts chemically, yog li ua kom muaj kev ruaj ntseg thiab stability ntawm lub ntim.
3. Kev tiv thaiv kub zoo
- Nws muaj qhov ua tau zoo heev thiab kub tsis kam. Nws yuav tsis deform los yog soften yooj yim nyob rau hauv qhov kub thiab txias ib puag ncig, los yog nws yuav ua nkig nyob rau hauv qis kub ib puag ncig. Qhov tshwj xeeb no tso cai rau PET zaj duab xis siv ib txwm nyob rau hauv cov huab cua sib txawv thiab cov chaw ua haujlwm ua haujlwm.
4. Cov khoom siv roj thiab dej vapor barrier zoo
- Nws cov pa roj thiab dej vapor permeability tsawg, uas tuaj yeem thaiv cov roj thiab tiv thaiv dej vapor nkag mus. Qhov no yog qhov tseem ceeb heev hauv kev ntim khoom noj, ntim khoom siv hluav taws xob, thiab lwm yam. Piv txwv li, thaum khaws qee cov khoom siv hluav taws xob uas nkag siab rau cov av noo, PET zaj duab xis tuaj yeem tiv thaiv cov dej vapor nkag mus thiab tiv thaiv cov khoom los ntawm kev puas tsuaj los ntawm ya raws.
III. Daim ntawv thov teb ntawm cov ntaub ntawv PET zaj duab xis
1. Ntim kev lag luam
- Hais txog kev ntim khoom noj, PET zaj duab xis feem ntau yog siv los ua cov hnab ntim khoom noj, cling zaj duab xis, thiab lwm yam. Nws cov pob tshab tso cai rau cov neeg siv khoom kom pom tseeb cov tsos ntawm cov zaub mov, thiab nws cov khoom thaiv zoo tuaj yeem ua rau lub neej txee ntawm cov zaub mov. Hauv kev ntim khoom tsis yog khoom noj, xws li ntim cov khoom siv hluav taws xob, tshuaj pleev ib ce, thiab lwm yam., PET zaj duab xis kuj tseem tuaj yeem muab kev tiv thaiv zoo thiab pom cov teebmeem.
2. Electronics kev lag luam
- Siv los ua cov txheej txheem insulating ntawm cov khoom siv hluav taws xob, cov khoom siv hluav taws xob ntawm cov khoom siv hluav taws xob hloov tau yooj yim, thiab lwm yam. Vim nws cov hluav taws xob rwb thaiv tsev zoo thiab cov khoom siv hluav taws xob ruaj khov, nws tuaj yeem ua tau raws li cov khoom siv hluav taws xob hauv ntau qhov chaw ua haujlwm.
3. Kev lag luam luam ntawv
- Nws tuaj yeem siv los ua luam ntawv substrate. Nws nto yog tiaj tus thiab du, thiab nws tuaj yeem nqus tau tus cwj mem zoo kom ua tiav cov txiaj ntsig luam ntawv zoo. Piv txwv li, thaum ua cov ntaub ntawv luam tawm xws li cov ntawv sau thiab cov ntawv tshaj tawm, PET zaj duab xis tuaj yeem ua rau cov qauv luam ntawv muaj xim, meej thiab kav ntev.
IV. Kev tsim cov txheej txheem ntawm cov ntaub ntawv PET zaj duab xis
1. Extrusion txoj kev
- Qhov no yog cov txheej txheem ntau lawm. Tom qab PET raw khoom yog rhuab thiab melted, nws yog extruded rau hauv ib zaj duab xis los ntawm extruder. Thaum lub sij hawm extrusion txheej txheem, tsis xws li kub thiab siab yuav tsum tau precisely tswj los xyuas kom meej tias lub thickness ntawm cov zaj duab xis yog uniform thiab zoo yog ruaj khov.
2. Biaxial stretching txoj kev
- Lub extruded PET zaj duab xis yog raug rau biaxial stretching kev kho mob ntxiv txhim kho nws cov khoom siv kho mob thiab cov khoom thaiv. Biaxial stretching yog txhawm rau ncab cov zaj duab xis nyob rau hauv ob qho tib si transverse thiab longitudinal cov lus qhia kom ua rau cov saw hlau molecular ntawm zaj duab xis ntau dua li niaj zaus thiab ua kom zoo.
5. Kev loj hlob zeem muag ntawm cov ntaub ntawv PET zaj duab xis
Nrog rau kev txhim kho txuas ntxiv ntawm kev tshawb fawb thiab thev naus laus zis, cov kev xav tau rau kev ua haujlwm ntawm cov khoom siv tau nce siab dua thiab siab dua. Nyob rau hauv tus txheej txheem ntawm kev txhim kho tas mus li thiab kev tsim kho tshiab, cov ntaub ntawv PET zaj duab xis yuav tsum tau siv rau hauv ntau qhov chaw tawm tshiab. Piv txwv li, nyob rau hauv lub tshav pob ntawm lub zog tshiab, nws yuav siv tau rau cov khoom tseem ceeb xws li roj teeb cais; nyob rau hauv kev kho mob, PET zaj duab xis cov khoom uas muaj lub luag haujlwm tshwj xeeb kuj tuaj yeem tsim, xws li cov khoom ntim kho mob nrog cov khoom siv tshuaj tua kab mob. Nyob rau tib lub sijhawm, nrog rau kev txhim kho ntawm ib puag ncig kev paub, kev rov ua dua tshiab thiab kev tsim kho kom ruaj khov ntawm cov ntaub ntawv PET zaj duab xis kuj tseem yuav yog qhov tseem ceeb ntawm kev tshawb fawb thiab kev loj hlob.
