Hauv lub ntiaj teb ntawm kev ntim khoom noj khoom haus uas muaj kev hloov pauv tas li, qhov chaw uas kev nyab xeeb, kev ncua sijhawm khaws cia, thiab kev ua tiav ntawm cov khoom sib sau ua ke, cov tshuaj ua kom cov kua ruaj khov tau tshwm sim ua cov phab ej uas tsis muaj leej twg paub. Cov tshuaj ntxiv no, uas tau tsim los rau cov yeeb yaj kiab qib zaub mov, ua lub luag haujlwm ntau yam uas tseem ceeb rau kev noj qab haus huv ntawm cov neeg siv khoom thiab kev ua haujlwm zoo ntawm kev lag luam. Cia peb kawm txog plaub lub luag haujlwm tseem ceeb uas ua rau cov tshuaj ua kom cov kua ruaj khov tseem ceeb hauv kev ntim khoom noj niaj hnub no.
Kev Ruaj Ntseg Thermal: Tiv Thaiv Cov Yeeb Yaj Kiab Los Ntawm Kev Kub HnyiabKev puas tsuaj
Cov yeeb yaj kiab qib zaub mov, txawm tias yog polyethylene (PE) lossis polypropylene (PP), raug ua kom sov siab (piv txwv li, extrusion, blow molding) txog li 230 ° C.Cov tshuaj ua kom cov kua dej ruaj khovua haujlwm ua tus saib xyuas thermal, cuam tshuam cov free radicals tsim tawm thaum lub sijhawm raug cua sov. Ib txoj kev tshawb fawb los ntawm Lub Koom Haum ntawm Kev Ntim Khoom Siv tau pom tias tsis muaj cov stabilizers, cov qauv zaj duab xis tau qhia txog kev txo qis 35% ntawm lub zog tensile tom qab 10 feeb ntawm 200 ° C. Los ntawm qhov sib piv,cov yeeb yaj kiab nrog cov kua dej stabilizer zoo tshaj plawscov qauv tsim tau khaws cia ntau dua 90% ntawm lawv lub zog qub, ua kom muaj kev ruaj khov ntawm cov qauv thaum lub sijhawm ua noj ua haus zoo li cov tais diav microwaveable.
Ua kom lub sijhawm txee ntev dua: Txo qhov Oxidation thiab UV Degradation
Ntxiv rau kev ua cov khoom noj, cov tshuaj stabilizers ua kua tiv thaiv kev ntxhov siab ntawm ib puag ncig thaum lub sijhawm khaws cia thiab thauj mus los. Kev raug hluav taws xob UV thiab kev raug oxygen tuaj yeem ua rau muaj kev hloov pauv ntawm photo-oxidation, ua rau cov zaj duab xis daj thiab tawg. Piv txwv li, hauv kev sim sib piv ntawm cov khoom ntim qos yaj ywm chips, cov zaj duab xis nrog cov tshuaj ntxiv UV-stabilizing kua txuas ntxiv cov khoom tshiab los ntawm 25%, raws li ntsuas los ntawm tus nqi peroxide. Cov tshuaj antioxidants raws li fatty acid hauv cov kua stabilizers scavenge oxygen, thaum UV absorbers zoo li benzotriazoles tiv thaiv cov zaj duab xis los ntawm kev puas tsuaj los ntawm hluav taws xob, khaws cia ob qho tib si lub ntim khoom zoo nkauj thiab cov khoom noj khoom haus muaj txiaj ntsig.
Kev ua tau zooKev Txhim Kho: Optimizing Melt Flow thiabKev sib npaug
Cov chaw tsim khoom ntsib teeb meem kev ua kom tiav cov zaj duab xis tuab thiab qhov chaw tiav. Cov tshuaj stabilizers ua kua txo cov viscosity yaj txog li 18%, raws li cov ntawv ceeb toom kev lag luam, ua rau extrusion du dua. Qhov kev txhim kho no yog qhov tseem ceeb rau cov kab ntau lawm ceev ceev, qhov twg qhov sib txawv ntawm 0.1 hli hauv qhov tuab tuaj yeem ua rau muaj kev pov tseg loj. Los ntawm kev txhawb nqa kev ua kom zoo ib yam, cov tshuaj stabilizers txo cov qhov tsis zoo xws li qhov chaw tawv nqaij ntses thiab qhov tuab hloov pauv, ua rau kev txuag nqi thiab kev tsim khoom zoo dua.
Kev Ua Raws Cai: Kev Xyuas Kom Muaj Kev Nyab Xeeb Khoom Noj thiab Cov Neeg Siv KhoomKev ntseeg siab
Kev nyab xeeb ntawm cov yeeb yaj kiab qib zaub mov nyob ntawm kev tswj hwm kev tsiv teb tsaws chaw ntxiv. Cov kua dej ruaj khov yuav tsum ua raws li cov cai nruj, xws li US FDA 21 CFR 178.2010 thiab EU Txoj Cai (EC) No 10/2011. Piv txwv li,cov tshuaj stabilizers uas ua los ntawm calcium-zinc, tau ntawv pov thawj tias tsis muaj tshuaj lom lwm txoj hauv kev rau cov tshuaj ua los ntawm cov hlau txhuas ib txwm muaj, ua raws li cov qauv khoom siv sib cuag thoob ntiaj teb. Lawv cov nqi tsiv teb tsaws chaw qis (≤0.1 ppm rau cov hlau hnyav) ua rau lawv zoo tagnrho rau kev ntim khoom noj rau menyuam yaus, qhov twg kev nyab xeeb yog qhov tseem ceeb.
Lub Ntiaj Teb Yav Tom Ntej: Kev Tsim Kho Tshiab hauv Kev Siv Tshuab Stabilizer
Kev lag luam tab tom pom kev hloov pauv mus rau cov tshuaj ua kom ruaj khov uas siv cov khoom siv bio-based. Cov roj taum pauv epoxidized, uas tau los ntawm cov khoom siv rov ua dua tshiab, tam sim no suav txog 30% ntawm kev lag luam stabilizer uas tsis ua rau ib puag ncig puas tsuaj. Cov kws tshawb fawb kuj tseem tab tom tshawb nrhiav cov qauv ntau yam uas sib xyaw ua ke kev ruaj khov nrog cov khoom siv nquag, xws li kev muaj peev xwm tua kab mob. Cov kev nce qib no cog lus tias yuav txhais dua cov qauv kev nyab xeeb thiab kev ruaj khov ntawm cov khoom ntim khoom noj.
Xaus lus, cov tshuaj stabilizers tsis yog cov khoom ntxiv xwb tab sis cov khoom tseem ceeb uas tiv thaiv kev ncaj ncees ntawm cov zaub mov, ua kom yooj yim rau kev tsim khoom, thiab ua raws li txoj cai. Thaum cov neeg siv khoom xav tau kev ntim khoom uas muaj kev nyab xeeb dua, siv tau ntev dua, cov tshuaj no yuav txuas ntxiv mus, tsav tsheb tsim kho tshiab hauv lub ecosystem ntim khoom noj.
Lub sijhawm tshaj tawm: Lub Xya Hli-31-2025