Yuav ua li cas xaiv lub teeb stabilizers (HALS)?
Cov kev cai dav dav kom ua raws thaum xaiv cov tshuaj tiv thaiv antioxidants thiab UV stabilizers
1. Kev ruaj ntseg thiab kev tshem tawm
Ob leeg UV Stabilizers thiab anti-oxidation thiab anti-hydrolysis muaj, tab sis cov xim ruaj khov yuav tsum tau them sai sai rau. Tsis tas li ntawd, ob qho tshuaj ntxiv no yuav tsum tsis txhob hnov qab nrog lwm cov khoom hauv lub cev, tsis yog cov khoom siv corrode los yog muab rho tawm los ntawm cov khoom ntawm cov khoom.
Hindered amine teeb stabilizers feem ntau tsis tshua muaj alkaline thiab tsis tuaj yeem siv ua ke nrog acidic additives, thiab cov khoom kawg tsis haum rau acidic ib puag ncig.
2. Solubility thiab compatibility
Feem ntau cov polymers tsis yog-polar, thaum antioxidants, UV stabilizers yog me ntsis polar. Solubility yog ib qho kev txhawj xeeb. Antioxidants thiab UV stabilizers yuav tsum yaj yam tsis muaj decomposing ntawm lub polymer ua kub, thiab feem ntau UV stabilizers tuaj yeem ua tau raws li qhov yuav tsum tau ua.
3. Kev tsiv teb tsaws chaw
Qhov twg ua tau, cov tshuaj antioxidants thiab UVAs uas muaj qhov hnyav molecular thiab cov ntsiab lus melting kuj yuav tsum raug xaiv, thiab qhov ntau npaum li cas ntawm txhua tus yuav tsum tau txiav txim siab raws li kev ua haujlwm nruj tshaj plaws thiab cov neeg siv khoom kawg.
4. Kev ua haujlwm
Thaum lub melting ntau ntawm antioxidants thiab UV stabilizers txawv heev ntawm cov resin. Drift flow los yog sticking screws yuav tshwm sim. Thaum qhov sib txawv tshaj 100 degree, UV stabilizer thiab antioxidant yuav tsum tau ntxiv rau hauv daim ntawv ntawm masterbatch, thiab tom qab ntawd tov nrog cov resin rau kev ua haujlwm.
5. Kev ua haujlwm thiab kev nyab xeeb
Antioxidants thiab UV stabilizers yuav tsum tsis muaj tshuaj lom lossis tsis muaj tshuaj lom. Tsis muaj plua plav. Nws tsis muaj teeb meem rau tib neeg lub cev thaum lub sijhawm ua cov yas thiab kev pabcuam lub neej. Tsis muaj teeb meem rau tsiaj los yog tais diav. Tsis muaj kuab paug rau huab cua, av thiab dej.
Siv rau hauv cov ntaub ntawv ua liaj ua teb, ntim khoom noj, cov khoom ua si, cov khoom siv pov tseg pov tseg lossis cov khoom noj ncaj qha, tshuaj, khoom siv kho mob, khoom siv kho mob, tib neeg lub cev tiv tauj plastics. Siv tsuas yog FDA lossis EU pom zoo antioxidants thiab UV stabilizers ua raws li qhov siab tshaj plaws.
Kev siv cov yas antioxidants, UV absorbers, thiab lub teeb stabilizers
Cov ntaub ntawv hauv qab no yuav tsum tsis txhob muab txhais ua kev lees paub lossis kev sawv cev ntawm peb lub luag haujlwm raug cai, thiab yuav raug hloov pauv yam tsis muaj nqe lus ua ntej, cov neeg siv yuav tsum ua pov thawj txaus thiab kuaj xyuas seb puas muaj cov ntaub ntawv lossis cov khoom uas tau hais los tsim nyog rau lawv tus kheej lub hom phiaj ntawm no. Yog tias koj muaj lus nug txog kev xaiv cov khoom siv ntxiv rau koj cov khoom, thov hu rau peb pab neeg txhawb nqa ntawm (nias ntawm no).
