Nyob rau hauv xyoo tas los no, muaj kev thov kom muaj ntau ntxiv raupob tshab ywj pheejCov yeeb yaj kiab uas tuaj yeem khoov lossis pwm ua ntau yam duab kom tau raws li ntau yam kev xav tau ntawm kev lag luam thiab thev naus laus zis. Cov yeeb yaj kiab no tau pom cov ntawv thov hauv kev lag luam xws li khoom siv hluav taws xob, cov zaub, cov roj teeb hnub ci, thiab cov ntim khoom ntse, thiab lwm yam. Lub peev xwm ntawm cov yeeb yaj kiab no kom khoov yam tsis poob lawv qhov pom tseeb yog qhov tseem ceeb rau lawv txoj kev vam meej hauv cov ntawv thov no. Tab sis cov yeeb yaj kiab no ua li cas thiaj ua tau qhov kev ywj pheej zoo li no?
Yuav teb tau lo lus nug no, peb yuav tsum kawm txog cov khoom sib xyaw thiab cov txheej txheem tsim cov yeeb yaj kiab no. Feem ntau cov yeeb yaj kiab pob tshab yooj ywm yog ua los ntawm cov polymers, uas yog cov saw ntev ntawm cov chav molecular rov ua dua. Kev xaiv cov khoom siv polymer ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab qhov yooj ywm thiab pob tshab ntawm cov yeeb yaj kiab. Qee cov khoom siv polymer siv rau cov yeeb yaj kiab pob tshab yooj ywm suav nrog polyethylene terephthalate (PET), polyethylene naphthalate (PEN), thiab polyimide (PI).
Cov ntaub ntawv polymer no muaj cov khoom siv kho tshuab zoo heev, xws li lub zog tensile siab thiab qhov ruaj khov zoo, thaum tseem tswj tau lawv cov pob tshab. Cov saw hlau ntawm cov polymer molecule tau ntim nruj nreem thiab muab cov qauv ruaj khov thiab sib xws rau zaj duab xis. Qhov kev ua tiav ntawm cov qauv no tso cai rau zaj duab xis kom tiv taus kev khoov thiab pwm yam tsis muaj kev tawg lossis poob pob tshab.
Ntxiv rau qhov kev xaiv cov khoom siv polymer, cov txheej txheem tsim khoom kuj tseem pab txhawb rau qhov yooj ywm ntawm zaj duab xis. Cov zaj duab xis feem ntau yog tsim los ntawm kev sib xyaw ua ke ntawm kev rho tawm thiab kev ncab. Thaum lub sijhawm rho tawm, cov khoom siv polymer raug yaj thiab yuam los ntawm qhov qhib me me hu ua lub pwm, uas ua rau nws zoo li daim ntawv nyias nyias. Daim ntawv no tom qab ntawd txias thiab khov kho los ua zaj duab xis.
Tom qab cov txheej txheem extrusion, zaj duab xis yuav dhau los ua ib kauj ruam ncab kom txhim kho nws qhov yooj ywm. Kev ncab suav nrog rub zaj duab xis hauv ob qho kev taw qhia perpendicular tib lub sijhawm, uas ua rau cov saw hlau polymer ntev thiab sib dhos lawv hauv ib qho kev taw qhia tshwj xeeb. Cov txheej txheem ncab no ua rau muaj kev ntxhov siab hauv zaj duab xis, ua rau nws yooj yim dua rau khoov thiab pwm yam tsis poob nws qhov pob tshab. Qib ntawm kev ncab thiab kev taw qhia ntawm kev ncab tuaj yeem hloov kho kom ua tiav qhov yooj ywm xav tau hauv zaj duab xis.
Lwm yam uas cuam tshuam rau lub peev xwm khoov ntawmcov yeeb yaj kiab pob tshab uas yoog tauyog lawv qhov tuab. Cov zaj duab xis nyias dua feem ntau yuav yoog tau yooj yim dua li cov tuab dua vim lawv txo qhov tsis kam rau khoov. Txawm li cas los xij, muaj kev sib pauv ntawm qhov tuab thiab lub zog kho tshuab. Cov zaj duab xis nyias dua yuav yooj yim dua rau kev rhuav lossis tho, tshwj xeeb tshaj yog tias raug rau cov xwm txheej hnyav. Yog li ntawd, cov chaw tsim khoom yuav tsum ua kom zoo dua qhov tuab ntawm zaj duab xis raws li cov kev xav tau ntawm daim ntawv thov tshwj xeeb.
Sib nrug ntawm cov khoom siv kho tshuab thiab cov txheej txheem tsim khoom, qhov pob tshab ntawm zaj duab xis kuj nyob ntawm nws cov yam ntxwv ntawm qhov chaw. Thaum lub teeb cuam tshuam nrog qhov chaw ntawm zaj duab xis, nws tuaj yeem raug cuam tshuam, kis tau, lossis nqus tau. Txhawm rau kom ua tiav qhov pob tshab, cov yeeb yaj kiab feem ntau yog coated nrog cov txheej nyias nyias ntawm cov khoom pob tshab, xws li indium tin oxide (ITO) lossis nyiaj nanoparticles, uas pab txo qhov kev cuam tshuam thiab txhim kho kev sib kis ntawm lub teeb. Cov txheej txheem no ua kom ntseeg tau tias zaj duab xis tseem pob tshab heev txawm tias thaum khoov lossis pwm.
Ntxiv rau lawv qhov kev ywj pheej thiab pob tshab, cov yeeb yaj kiab pob tshab uas yooj ywm kuj muaj ntau yam zoo dua li cov ntaub ntawv khov kho ib txwm muaj. Lawv qhov xwm txheej sib dua ua rau lawv zoo tagnrho rau cov ntawv thov uas qhov hnyav txo qis yog qhov tseem ceeb, xws li hauv cov khoom siv hluav taws xob nqa tau. Ntxiv mus, lawv lub peev xwm los ua kom haum rau cov nplaim nkhaus ua rau tsim cov khoom siv tshiab thiab txuag chaw. Piv txwv li,cov yeeb yaj kiab pob tshab uas yoog tausiv rau hauv cov zaub nkhaus, uas muab kev paub saib zoo dua.
Qhov kev thov nce ntxiv raucov yeeb yaj kiab pob tshab uas yoog tautau ua rau muaj kev tshawb fawb thiab kev txhim kho hauv daim teb no, nrog rau cov kws tshawb fawb thiab cov engineers siv zog los txhim kho lawv cov khoom thiab nthuav lawv cov ntawv thov. Lawv tab tom ua haujlwm ntawm kev tsim cov ntaub ntawv polymer tshiab nrog kev ywj pheej thiab pob tshab, nrog rau kev tshawb nrhiav cov txheej txheem tsim khoom tshiab kom ua tiav kev tsim khoom tsim nyog. Vim yog cov kev siv zog no, yav tom ntej zoo li muaj kev cia siab raucov yeeb yaj kiab pob tshab uas yoog tau, thiab peb tuaj yeem cia siab tias yuav pom ntau daim ntawv thov tshiab hauv ntau yam lag luam.
Xaus lus, qhov yooj ywm ntawm cov yeeb yaj kiab pob tshab yog ua tiav los ntawm kev sib xyaw ua ke ntawm ntau yam, suav nrog kev xaiv cov khoom siv polymer, cov txheej txheem tsim khoom, cov yeeb yaj kiab tuab, thiab nws cov yam ntxwv ntawm qhov chaw. Cov ntaub ntawv polymer nrog cov khoom siv kho tshuab zoo heev tso cai rau cov yeeb yaj kiab kom tiv taus kev khoov yam tsis poob qhov pom tseeb. Cov txheej txheem tsim khoom suav nrog kev rho tawm thiab ncab kom txhim kho qhov yooj ywm ntxiv. Cov txheej txheem txheej thiab cov txheej nyias nyias raug siv los txo qhov kev cuam tshuam thiab txhim kho lub teeb kis. Nrog kev tshawb fawb thiab kev txhim kho tas mus li, yav tom ntej ntawmcov yeeb yaj kiab pob tshab uas yoog tauzoo li ci ntsa iab, thiab lawv tau teem caij los hloov pauv kev lag luam thiab thev naus laus zis hauv ntau txoj kev.
Lub sijhawm tshaj tawm: Cuaj hlis-05-2023
