Cov kua dej Barium Zinc PVC Stabilizersyog tshwj xeeb additives siv nyob rau hauv polyvinyl chloride (PVC) ua los txhim khu thermal thiab lub teeb stability, tiv thaiv degradation thaum lub sij hawm tsim thiab ncua cov khoom lifespan. Nov yog cov ncauj lus kom ntxaws txog lawv cov khoom siv, kev siv, kev txiav txim siab, thiab kev lag luam tiam sis:
Kev sib xyaw thiab Mechanism
Cov stabilizers feem ntau muaj barium ntsev (xws li, alkylphenol barium los yog 2-ethylhexanoate barium) thiab zinc ntsev (xws li, 2-ethylhexanoate zinc), ua ke nrog cov khoom sib xyaw xws li phosphites (piv txwv li, tris (nonylphenyl) phosphite) rau chelation thiab cov kuab tshuaj (piv txwv li. Lub barium muab kev tiv thaiv lub sijhawm luv luv, thaum zinc muaj kev ruaj ntseg mus ntev. Daim ntawv ua kua ua kom muaj kev sib xyaw ua ke hauv PVC formulations. Cov qauv tsim tsis ntev los no kuj suav nrog polyether silicone phosphate esters los txhim kho lubricity thiab pob tshab, txo cov dej nqus dej thaum txias.
Qhov Zoo Tshaj Plaws
Tsis-Toxicity: Tsis muaj cov hlau hnyav xws li cadmium, lawv ua raws li cov qauv kev sib cuag nrog zaub mov thiab kev kho mob (piv txwv li, FDA pom zoo qib hauv qee cov qauv).
Kev Ua Haujlwm Zoo: Lub xeev ua kua ua kom yooj yim dispersion nyob rau hauv mos PVC tebchaw (xws li, zaj duab xis, xov hlau), txo cov sij hawm ua thiab kev siv zog.
Nqi-zoo: Sib tw nrog cov organic tin stabilizers thaum tsis txhob muaj kev txhawj xeeb toxicity.
Synergistic Effects: Thaum ua ke nrog cov calcium-zinc stabilizers, lawv hais txog "ntug" cov teeb meem hauv PVC extrusion nruj los ntawm kev ntsuas lubricity thiab thermal stability.
Daim ntawv thov
Cov khoom siv mos PVC: Siv dav hauv cov yeeb yaj kiab hloov pauv, cables, tawv tawv, thiab cov khoom siv kho mob vim lawv tsis muaj tshuaj lom thiab ua kom pom tseeb.
Rigid PVC: Ua ke nrogcalcium-zinc stabilizers, lawv txhim kho kev ua tau zoo hauv cov yeeb yaj kiab thiab cov yeeb yaj kiab, txo qis "ntoos" (cov ntaub ntawv slipping thaum extrusion).
Cov ntawv thov tshwj xeeb: High-transparency formulations rau ntim thiab UV-resistant khoom thaum ua ke nrog antioxidants zoo li 2,6-di-tert-butyl-p-cresol.
Regulatory thiab Environmental Considerations
REACH Ua Raws Cai: Barium tebchaw raug tswj raws li REACH, nrog rau kev txwv ntawm soluble barium (piv txwv li, ≤1000 ppm hauv cov khoom siv). Feem ntau cov kua barium zinc stabilizers ua tau raws li cov kev txwv no vim yog cov solubility tsawg.
Lwm txoj kev: Calcium-zinc stabilizers tau txais traction vim muaj kev tswj hwm ib puag ncig, tshwj xeeb hauv Tebchaws Europe. Txawm li cas los xij, barium zinc stabilizers tseem nyiam nyob rau hauv cov ntaub ntawv kub kub (xws li, cov khoom siv hauv tsheb) qhov twg calcium-zinc ib leeg yuav tsis txaus.
Kev ua tau zoo thiab cov ntaub ntawv Technical
Thermal stability: Cov kev ntsuas kub zoo li qub qhia txog kev ruaj ntseg txuas ntxiv (piv txwv li, 61.2 feeb ntawm 180 ° C rau cov formulations nrog hydrotalcite co-stabilizers). Dynamic processing (xws li, ntxaib-ntsia hlau extrusion) tau txais txiaj ntsig los ntawm lawv cov khoom lubricating, txo cov shear degradation.
Pob tshab: Advanced formulations nrog polyether silicone esters ua tau siab optical clarity (≥90% transmittance), ua rau lawv haum rau ntim films.
Migration Resistance: Cov qauv tsim kom ruaj khov ua rau pom kev tsiv teb tsaws tsawg, qhov tseem ceeb rau cov ntawv thov xws li ntim khoom noj uas ntxiv kev tsiv teb tsaws yog kev txhawj xeeb.
Cov lus qhia ua
Kev sib haum xeeb: Tsis txhob siv ntau dhau ntawm stearic acid lubricants, raws li lawv yuav hnov mob nrog zinc ntsev, ua kom PVC degradation. Xaiv rauco-stabilizerszoo li epoxidized soybean roj los txhim kho kev sib raug zoo.
Kev noj tshuaj: Kev siv feem ntau ntawm 1.5-3 phr (qhov ib puas resin) hauv cov PVC mos thiab 0.5-2 phr hauv cov qauv nruj thaum ua ke nrog calcium-zinc stabilizers.
Kev Lag Luam Kev Lag Luam
Kev loj hlob tsav tsheb: Qhov kev thov rau cov tsis muaj tshuaj lom stabilizers hauv Asia-Pacific thiab North America yog thawb kev tsim kho tshiab hauv barium zinc formulations. Piv txwv li, Tuam Tshoj txoj kev lag luam PVC nce siv cov kua barium zinc stabilizers rau hlau / cable ntau lawm.
Kev sib tw: Qhov nce ntawm calcium-zinc stabilizers (kwv yees CAGR ntawm 5-7% hauv cov ntaub ntawv khau thiab ntim khoom) ua rau muaj kev sib tw, tab sis barium zinc khaws nws cov niche hauv kev ua haujlwm siab.
Cov kua dej Barium Zinc PVC Stabilizers muaj qhov sib npaug ntawm cov nqi-zoo, thermal stability, thiab kev tswj xyuas, ua rau lawv tseem ceeb hauv cov khoom muag muag thiab semi-rigid PVC. Thaum ib puag ncig kev ntxhov siab ua rau kev hloov pauv mus rau lwm txoj kev calcium-zinc, lawv cov khoom tshwj xeeb ua kom muaj kev cuam tshuam txuas ntxiv hauv kev lag luam tshwj xeeb. Formulators yuav tsum ua tib zoo sib npaug cov kev xav tau ntawm kev ua haujlwm nrog cov txheej txheem tswj hwm kom ua tiav lawv cov txiaj ntsig.
Post lub sij hawm: Aug-08-2025