Cov kua Barium Zinc PVC Stabilizersyog cov khoom siv tshwj xeeb uas siv rau hauv kev ua polyvinyl chloride (PVC) los txhim kho kev ruaj khov ntawm thermal thiab lub teeb, tiv thaiv kev puas tsuaj thaum lub sijhawm tsim khoom thiab txuas ntxiv lub neej ntawm cov khoom. Nov yog kev piav qhia ntxaws ntxaws ntawm lawv cov khoom sib xyaw, cov ntawv thov, kev txiav txim siab txog kev cai lij choj, thiab cov qauv kev ua lag luam:
Kev Sib xyaw thiab Txoj Cai
Cov stabilizers no feem ntau muaj cov ntsev barium (piv txwv li, alkylphenol barium lossis 2-ethylhexanoate barium) thiab cov ntsev zinc (piv txwv li, 2-ethylhexanoate zinc), ua ke nrog cov khoom sib txuas xws li phosphites (piv txwv li, tris (nonylphenyl) phosphite) rau chelation thiab cov kuab tshuaj (piv txwv li, cov roj av) rau kev sib kis. Lub barium muab kev tiv thaiv cua sov luv luv, thaum zinc muab kev ruaj khov ntev. Daim ntawv kua ua kom muaj kev sib xyaw ua ke hauv PVC cov qauv. Cov qauv tsis ntev los no kuj suav nrog polyether silicone phosphate esters los txhim kho lubricity thiab pob tshab, txo cov dej nqus thaum lub sijhawm txias.
Cov txiaj ntsig tseem ceeb
Tsis Muaj Tshuaj LomTsis muaj cov hlau hnyav xws li cadmium, lawv ua raws li cov qauv kev sib cuag nrog zaub mov thiab qib kho mob (piv txwv li, qib uas FDA pom zoo hauv qee cov qauv).
Kev Ua Haujlwm Zoo: Lub xeev kua ua kom yooj yim disperse hauv cov khoom sib xyaw PVC mos (piv txwv li, zaj duab xis, xov hlau), txo cov sijhawm ua haujlwm thiab kev siv zog.
Kev Siv Nyiaj Zoo: Sib tw nrog cov organic tin stabilizers thaum zam kev txhawj xeeb txog kev lom.
Cov teebmeem synergisticThaum ua ke nrog cov calcium-zinc stabilizers, lawv daws cov teeb meem "tonguing" hauv kev sib xyaw PVC los ntawm kev sib npaug ntawm lubricity thiab thermal stability.
Cov ntawv thov
Cov Khoom Siv PVC MosSiv dav hauv cov yeeb yaj kiab yooj ywm, cov xov hlau, cov tawv cuav, thiab cov khoom siv kho mob vim lawv tsis muaj tshuaj lom thiab khaws cia kom meej.
PVC ruaj khov: Ua ke nrogcov tshuaj calcium-zinc stabilizers, lawv txhim kho kev ua haujlwm hauv cov yeeb yaj kiab thiab cov profile, txo qhov "tonguing" (cov khoom poob thaum lub sijhawm extrusion).
Cov Ntawv Thov Tshwj XeebCov qauv pob tshab rau cov ntim khoom thiab cov khoom tiv taus UV thaum ua ke nrog cov tshuaj antioxidants xws li 2,6-di-tert-butyl-p-cresol.
Kev Xav Txog Kev Cai Lij Choj thiab Ib puag ncig
Kev Ua Raws Cai REACHCov tshuaj barium raug tswj hwm raws li REACH, nrog rau kev txwv rau cov barium uas yaj tau (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 tias solubility qis.
Lwm txoj hauv kevCov tshuaj stabilizers uas siv calcium-zinc tau txais kev nyiam vim muaj kev cai lij choj ib puag ncig nruj dua, tshwj xeeb tshaj yog nyob hauv Tebchaws Europe. Txawm li cas los xij, cov tshuaj barium zinc stabilizers tseem nyiam siv rau hauv cov ntawv thov kub heev (piv txwv li, cov khoom siv hauv tsheb) qhov twg calcium-zinc ib leeg xwb yuav tsis txaus.
Kev Ua Tau Zoo thiab Cov Ntaub Ntawv Txog Kev Siv Tshuab
Kev Ruaj Ntseg ThermalKev sim cua sov zoo li qub qhia tau tias muaj kev ruaj khov ntev (piv txwv li, 61.2 feeb ntawm 180 ° C rau cov qauv nrog hydrotalcite co-stabilizers). Kev ua haujlwm dynamic (piv txwv li, twin-screw extrusion) tau txais txiaj ntsig los ntawm lawv cov khoom siv lubricating, txo qhov shear degradation.
Kev Pom Tseeb: Cov qauv siab heev nrog polyether silicone esters ua tiav qhov pom tseeb siab (≥90% transmittance), ua rau lawv haum rau cov yeeb yaj kiab ntim khoom.
Kev Tiv Thaiv Kev Tsiv Tebchaws: Cov stabilizers uas tsim tau zoo qhia txog kev tsiv teb tsaws chaw tsawg, qhov tseem ceeb rau cov ntawv thov xws li kev ntim khoom noj uas muaj kev txhawj xeeb txog kev tsiv teb tsaws chaw ntxiv.
Cov Lus Qhia Txog Kev Ua Haujlwm
Kev Sib Haum XeebTsis txhob siv cov roj nplua nyeem stearic acid ntau dhau, vim tias lawv yuav ua rau cov ntsev zinc ua rau PVC puas sai dua. Xaiv sivcov khoom sib koom ua kezoo li roj taum pauv epoxidized los txhim kho kev sib raug zoo.
Kev Siv TshuajKev siv ib txwm muaj li ntawm 1.5–3 phr (qhov ib puas resin) hauv PVC mos thiab 0.5–2 phr hauv cov qauv khov kho thaum ua ke nrog calcium-zinc stabilizers.
Cov Qauv Lag Luam
Cov Tsav Tsheb Loj HlobQhov kev thov rau cov tshuaj stabilizers uas tsis muaj tshuaj lom hauv Asia-Pacific thiab North America tab tom thawb kev tsim kho tshiab hauv cov qauv barium zinc. Piv txwv li, kev lag luam PVC hauv Suav teb tau siv cov tshuaj barium zinc stabilizers ntau zuj zus rau kev tsim cov hlau / cable.
Cov Kev Sib TwKev nce ntawm cov tshuaj calcium-zinc stabilizers (kwv yees CAGR ntawm 5-7% hauv cov ntaub ntawv khau thiab cov khoom ntim khoom) ua rau muaj kev sib tw, tab sis barium zinc tseem khaws nws qhov chaw me me hauv cov ntawv thov kev ua haujlwm siab.
Cov Khoom Siv Barium Zinc PVC Stabilizers muab kev sib npaug ntawm kev siv nyiaj tsim nyog, kev ruaj khov thermal, thiab kev ua raws li txoj cai, ua rau lawv tsis tseem ceeb hauv cov khoom PVC mos thiab semi-rigid. Txawm hais tias kev nyuaj siab ntawm ib puag ncig tsav kev hloov mus rau lwm txoj hauv kev calcium-zinc, lawv cov khoom tshwj xeeb ua kom muaj kev cuam tshuam txuas ntxiv hauv kev lag luam tshwj xeeb. Cov neeg tsim khoom yuav tsum ua tib zoo sib npaug cov kev cai ua tau zoo nrog cov lus qhia ntawm txoj cai kom ua tiav lawv cov txiaj ntsig.
Lub sijhawm tshaj tawm: Lub Yim Hli-08-2025