Kev ruaj ntseg
Khoom noj khoom haus- qib PET yog siv dav hauv kev ntim khoom noj thiab dej haus vim nws lees paub kev nyab xeeb thiab ruaj khov. Nws tsis tso cov tshuaj phem thiab ua tau raws li cov qauv kev nyab xeeb thoob ntiaj teb, uas ua rau cov neeg siv khoom muaj kev thaj yeeb nyab xeeb thaum siv nws. Txawm li cas los xij, nws tseem ceeb heev uas yuav tsum nco ntsoov tias PET tuaj yeem tso qee yam khoom tsis zoo, xws li DEHP, thaum kub kub. Yog li ntawd, thaum siv cov thawv PET, nws yog ib qho tseem ceeb kom tsis txhob muaj qhov kub siab - ib puag ncig los tiv thaiv kev tso tawm cov khoom tsis zoo.
Khoom noj khoom haus- qib PP muaj nyob thoob plaws hauv lub neej txhua hnub, xws li hauv cov khw muag khoom noj khoom haus ntim khoom noj thiab microwave- cov thawv noj su zoo. Vim li cas nws thiaj li nrov? Ua ntej tshaj plaws, cov khoom siv no tsis yog - lom, tsis muaj ntxhiab, thiab tsis qab, ua rau nws muaj kev nyab xeeb heev rau kev siv. Tsis tas li ntawd, nws muaj kev tiv thaiv kub zoo heev; nws tuaj yeem microwaved yam tsis muaj teeb meem, tsis zoo li qee cov yas uas deform lossis tso cov khoom tsis zoo thaum cua sov. Ntxiv mus, nws muaj kev ruaj ntseg tshuaj zoo heev thiab tsis yooj yim hnov mob nrog lwm yam tshuaj nyob rau hauv ib txwm siv.
Qhov tseem ceeb tshaj plaws, cov khoom siv PP tsis tas yuav tsum muaj qhov sib ntxiv ntawm cov khoom tsis zoo thaum lub sijhawm tsim khoom. Nyob rau hauv qhov kub thiab txias, nws yuav tsis decompose rau hauv bisphenol A, tshuaj lom neeg lub cev. Qhov no txhais tau hais tias cov tais diav los yog ntim khoom ua los ntawm PP cov khoom muaj kev nyab xeeb thiab tshwj xeeb tshaj yog tsim rau khaws cov zaub mov.
pob tshab
Khoom noj khoom haus- qib PET cov ntaub ntawv muaj qhov pom tseeb heev, tso cai rau koj pom cov zaub mov sab hauv ib nrais muag, nrog rau nws cov tsos thiab zoo pom tseeb. Yog li ntawd, nws yog qhov tshwj xeeb tshaj yog siv rau hauv ntim khoom uas yuav tsum tau muab tso rau hauv cov khoom noj, xws li lub raj mis dej haus uas peb nquag haus, thiab cov hub khoom noj uas tuav biscuits thiab candies. Feem ntau ntawm cov pob no yog ua los ntawm PET. Vim li cas siv nws? Vim tias cov lag luam xav nthuav tawm qhov zoo tshaj plaws ntawm lawv cov khoom rau cov neeg siv khoom kom nyiam lawv mus yuav. Tsis tas li ntawd, cov ntim no tsis yog tsuas yog saib kom huv si thiab huv si, tab sis kuj tseem tuaj yeem tiv thaiv cov khoom noj rau qee yam, tiv thaiv kom tsis txhob ntub los yog deformed, thiab xyuas kom meej tias cov khoom noj tuaj yeem ncav cuag cov neeg siv khoom zoo thiab zoo.
Khoom noj khoom haus- qib PP muaj qhov pom tseeb qis dua, feem ntau yog ib nrab- pob tshab. Txawm hais tias nws lub teeb xa hluav taws xob qis dua, nws cov ntawv thov tau dav - ntau yam. Siv cov thawv yogurt ua piv txwv. Cov khoom ib nrab -pob tshab PP tso cai rau tib neeg kom pom qhov tuab ntawm cov yogurt, thaum tseem ua rau cov khoom tsis meej. Lwm yam khoom siv hauv tsev loj yog lub tais, nrog cov tais nqaij tshiab yog qhov piv txwv zoo. Ua los ntawm cov khoom siv PP, cov tais no muaj zog, siv tau, thiab lawv cov semi- pob tshab zoo nkauj ua rau lawv saib huv thiab huv. Kev siv PP rau cov thawv ntim khoom noj thiab cov tais tsis tsuas yog ua tau raws li cov kev xav tau no tab sis kuj ua kom muaj kev nyab xeeb ntawm zaub mov.
Thaum tshav kub kub kuj
Kev tiv thaiv tshav kub ntawm cov zaub mov -qib PET yog ib qho tseem ceeb. Txawm hais tias nws yog cua sov- tiv taus, nws tsis tuaj yeem tiv taus qhov kub thiab txias. Thaum qhov kub nce mus txog 70-80 degree, qhov chaw ntawm PET ntim yuav deform thiab poob nws cov duab qub. Yog li ntawd, zaub mov- qib PET tsis haum rau cov ntawv thov uas yuav tsum tau ua kom tsis muaj menyuam lossis cua sov siab. Yog tias cov dej kub muab tso rau hauv lub ntim PET, nws yuav yooj yim deform, ua rau lub ntim puas los yog ua rau lub ntim tsis siv tau. Yog li ntawd, thaum xaiv cov khoom ntim, qhov kub thiab txias thaum lub sij hawm ua zaub mov yuav tsum tau txiav txim siab kom tsis txhob muaj teeb meem tshwm sim los ntawm cov khoom ntim uas tsis muaj cua sov.
Khoom noj khoom haus-qib PP muaj qhov ua tau zoo thaum tshav kub kub, feem ntau ua rau kub ntawm 110-120℃. Nws tseem yog tib cov yas uas tuaj yeem ncaj qha rhuab hauv lub qhov cub microwave, ua rau nws siv tau tshwj xeeb. Yog tias cov khoom noj yuav tsum tau ua kom tsis muaj menyuam ntawm qhov kub thiab txias ua ntej ntim, PP cov khoom ntim zoo meej. Ntau lub thawv ntim khoom noj, xws li cov uas peb feem ntau siv los tuav cov pluas noj, thiab cov khoom npaj tau - noj su hauv khw muag khoom noj, yog ua los ntawm cov khoom siv PP. Nws yooj yim thiab nyab xeeb siv los ua kom sov cov zaub mov hauv microwave, tsis muaj kev txhawj xeeb txog nws melting lossis tso cov khoom tsis zoo. Nws yooj yim heev hauv lub neej txhua hnub.
Tshuaj tiv thaiv
Khoom noj khoom haus- qib PET muaj kev ua siab ntev rau cov kua qaub thiab alkalis thiab tuaj yeem tiv taus cov acidic thiab alkaline ib puag ncig hauv cov khoom noj txhua hnub. Txawm li cas los xij, nws yuav tsis ua haujlwm yog tias nws ntsib cov oxidizing muaj zog lossis cov kuab tshuaj organic. Piv txwv li, muaj zog oxidizing cov neeg ua haujlwm zoo li tshuaj dawb thiab tshuaj tua kab mob, nrog rau cov xim pleev xim, tuaj yeem corrode PET, ua rau nws nkig, deformed, lossis txawm tawg. Yog li ntawd, thaum ntim khoom noj, nws yog qhov zoo tshaj plaws kom tsis txhob cia nws los rau hauv kev sib cuag nrog cov khoom no kom ntseeg tau tias lub ntim ntim thiab kev nyab xeeb ntawm cov khoom noj.
Khoom noj khoom haus-qib PP muaj cov tshuaj lom neeg ruaj khov thiab tsis hnov mob nrog cov tshuaj feem ntau tshwj tsis yog cov tshuaj muaj zog oxidizing. Cov khoom no yog nrov nyob rau hauv cov zaub mov thiab kev lag luam sectors. Rau cov thawv ntim khoom noj thiab microwave- lub thawv noj su zoo, cov khoom siv PP yog qhov tsim nyog heev vim nws tiv thaiv cov khoom noj los ntawm cov tshuaj lom neeg. Rau qee qhov kev lag luam ntim tshuaj, yog tias cov kua qaub lossis alkalinity tsis muaj zog heev, cov khoom PP kuj tuaj yeem tiv taus nws. Txawm tias cov tshuaj pleev ib ce thiab ntxuav cov khoom ntim tuaj yeem tau txais txiaj ntsig los ntawm PP, tiv thaiv kev cuam tshuam ntawm cov tshuaj sab hauv thiab cov khoom ntim, ua kom cov khoom zoo ruaj khov. Nyob rau hauv luv luv, tsuav yog nws tsis tuaj rau hauv kev sib cuag nrog cov muaj zog oxidizing neeg sawv cev, PP cov ntaub ntawv yog ib tug zoo xaiv rau ntim uas resists tshuaj corrosion.
Kev ua tau zoo
Khoom noj khoom haus- qib PET muaj teeb meem me ntsis rau kev ua haujlwm. Nws yuav tsum tau qhuav kom huv si ua ntej nws tuaj yeem molded. Yog tias nws tsis qhuav tag, cov teeb meem tuaj yeem tshwm sim tau yooj yim thaum ua, xws li blistering lossis impurities ntawm cov khoom nto. Ntxiv mus, PET yog qhov nyuaj rau kev ua haujlwm, thiab cov khoom siv thiab cov txheej txheem thaum lub sijhawm tsim khoom yog nruj dua. Qhov no ncaj qha ua rau cov nqi tsim khoom ntau dua li lwm cov ntaub ntawv yas. Yog li ntawd, cov khoom PET feem ntau kim dua. Txawm li cas los xij, nws tseem siv dav hauv kev ntim khoom xws li lub raj mis dej haus thiab cov thawv ntim khoom noj, feem ntau yog vim nws qhov kev ua tau zoo, siab pob tshab, muaj peev xwm ua kom pom cov zaub mov kom pom tseeb, thiab muaj peev xwm ua kom muaj kev nyab xeeb ntawm zaub mov.
Khoom noj khoom haus-qib PP muaj kev ua tau zoo heev, yooj yim yoog rau ntau yam kev ua haujlwm nyuaj, xws li txhaj tshuaj molding, extrusion, thiab tshuab molding. Hauv kev tsim khoom, PP tsis xav tau cov khoom siv thiab cov txheej txheem tib yam li qee cov yas, thiab molding yog yooj yim dua. Yog li ntawd, nws cov nqi tsim khoom kuj qis dua. Raws li qhov tshwm sim, zaub mov- qib PP tshwj xeeb yog nrov hauv kev lag luam ntim khoom; ntau yam khoom siv niaj hnub xws li cov thawv ntim khoom noj thiab lub khob yogurt yog ua los ntawm PP. Nrog nws cov nqi qis thiab cov khoom zoo, nws tuaj yeem ua tau raws li kev xav tau ntawm kev lag luam, yog li nws tsis xav tias nws muaj qhov chaw hauv kev lag luam ntim khoom noj.
Siv tau Scenarios
Khoom noj khoom haus- qib PET yog qhov tsim nyog rau kev ntim khoom uas yuav tsum tau nthuav tawm cov zaub mov tab sis tsis xav tau qhov kub thiab txias. Nws lub siab pob tshab tso cai rau kom pom tseeb ntawm cov zaub mov zoo li thiab qhov zoo, ua rau nws zoo tagnrho rau kev ntim khoom xws li lub raj mis dej haus thiab cov hub zaub mov pob tshab uas cov neeg siv khoom xav pom cov ntsiab lus ncaj qha. Txawm li cas los xij, nws qhov kev ua tau zoo ntawm qhov kub thiab txias tsis zoo tagnrho; qhov chaw feem ntau deforms ntawm 70-80 degree, ua rau nws tsis haum rau cov dej kub thiab khoom noj. PET tsis haum yog tias yuav tsum tau ua kom tsis muaj menyuam lossis cua sov.
Khoom noj khoom haus- qib PP yog cov khoom siv tau zoo heev, tshwj xeeb tshaj yog tsim rau cov ntim khoom uas yuav tsum tau tiv thaiv cov tshuaj yaig thiab siv rau cov khoom noj khov. Piv txwv li, ntau lub thawv zaub mov, tais, thiab microwave- cov thawv ntim khoom nyab xeeb uas peb nquag pom yog ua los ntawm cov khoom PP. PP muaj kev ruaj ntseg zoo heev; nws tsis hnov mob nrog cov tshuaj feem ntau tshwj tsis yog cov oxidizers muaj zog, ua rau nws muaj kev nyab xeeb tshwj xeeb rau cov zaub mov cia. Tsis tas li ntawd, PP tuaj yeem tiv taus qhov kub thiab txias, yog li cov khoom noj khov tuaj yeem khaws cia yam tsis muaj teeb meem, tsis zoo li lwm cov ntaub ntawv uas tuaj yeem ua nkig lossis deform. Rau cua sov, PP ntim tau muab tso ncaj qha rau hauv lub microwave, muab kev yooj yim thiab ceev.
Kev tiv thaiv ib puag ncig
Thaum cov zaub mov- qib PET khav theeb ua haujlwm zoo ib puag ncig, qee cov khoom ntxiv, xws li catalysts thiab antioxidants, tej zaum yuav raug ntxiv thaum ua. Cov tshuaj ntxiv no tuaj yeem txav mus los thiab tshem tawm thaum siv sijhawm ntev -, yog li cuam tshuam rau kev nyab xeeb ntawm zaub mov. Piv txwv li, cov catalysts siv nyob rau hauv PET polycondensation cov tshuaj tiv thaiv (xws li antimony trioxide) thiab cov byproducts ntawm cov tshuaj tiv thaiv (xws li acetaldehyde) yog tshuaj lom, ua rau muaj kev pheej hmoo ntawm toxicity hloov. Yog li ntawd, thaum xaiv PET ua cov khoom ntim khoom noj, nws yog ib qho tsim nyog yuav tsum tswj hwm tus nqi ntawm cov khoom siv ntxiv thiab txwv kev tsiv teb tsaws chaw kom ua tau raws li cov qauv kev nyab xeeb khoom noj.
Khoom noj khoom haus- qib PP muaj kev ua tau zoo ib puag ncig thiab tsis tso cov pa phem thaum siv, yog li nws muaj kev cuam tshuam me me rau tib neeg kev noj qab haus huv. Nws yog cov khoom siv yas uas muaj kev nyab xeeb, thiab tshwj xeeb tshaj yog tsim rau ntim khoom noj. Piv txwv li, ntau lub thawv ntim khoom noj thiab microwave- lub thawv noj su uas peb nquag siv yog ua los ntawm cov khoom siv PP. Thaum koj siv nws los khaws cov zaub mov, txawm tias koj yuav txias los yog cua sov, koj tsis tas yuav txhawj txog nws tso cov khoom tsis zoo. Tsis tas li ntawd, cov khoom siv PP yog qhov yooj yim rau kev pov tseg tom qab muab pov tseg, thiab nws tsis ua rau lub nra hnyav rau ib puag ncig zoo li lwm yam yas. Yog li ntawd, PP tau dav siv hauv ntim khoom noj thiab khoom siv txhua hnub, thiab tib neeg xav tias muaj kev ntseeg siab heev txog nws txoj kev siv.
xaus
Yog tias koj xav ua kom pom cov tsos thiab qhov zoo ntawm cov zaub mov thaum tseem tiv taus qhov kub thiab txias, zaub mov - qib PET tej zaum yuav tsis tsim nyog, vim PET yog qhov ua rau deformation ntawm qhov kub thiab txias. Nws raug nquahu kom xaiv lwm cov ntaub ntawv zoo dua rau siab - qhov kub thiab txias. Txawm li cas los xij, PET muaj qhov pom tseeb siab, ua rau muaj txiaj ntsig zoo tshaj plaws.
Yog tias koj xav tau tiv thaiv cov tshuaj tiv thaiv corrosion thiab ntim cov khoom noj khov, zaub mov - qib PP yog qhov kev xaiv zoo. PP muaj kev ruaj ntseg zoo, tsis tshua muaj - qhov kub thiab txias, thiab tuaj yeem siv rau microwave cua sov, ua rau nws ua tau zoo heev.
Khoom noj khoom haus- qib PET thiab PP txhua tus muaj lawv tus kheej cov yam ntxwv: PET muaj qhov pom tseeb tab sis tsis tshua muaj cua sov; PP muaj qhov ua tau zoo thaum tshav kub kub thiab tshuaj lom neeg ruaj khov, tab sis qis dua pob tshab. Yog li ntawd, qhov kev xaiv yuav tsum yog raws li qhov tshwj xeeb daim ntawv thov scenario thiab yuav tsum tau xaiv cov khoom tsim nyog tshaj plaws.
