Cov Khoom Siv Barium Zinc Stabilizers rau PVC Rigid & Flexible Yam Koj Yuav Tsum Paub

Polyvinyl chloride (PVC) yog ib qho ntawm cov polymers uas siv tau ntau yam hauv kev lag luam yas thoob ntiaj teb, nrhiav nws txoj hauv kev rau hauv ntau yam khoom los ntawm cov kav dej tsim kho mus rau sab hauv tsheb thiab cov yeeb yaj kiab ntim khoom noj. Txawm li cas los xij, qhov kev hloov pauv no los nrog qhov tsis zoo tseem ceeb: kev tsis ruaj khov ntawm qhov kub. Thaum raug rau qhov kub siab uas xav tau rau kev ua tiav - feem ntau yog 160–200 ° C - PVC dhau los ua autocatalytic dehydrochlorination, tso tawm hydrochloric acid (HCl) thiab ua rau muaj kev sib xyaw ua ke uas ua rau cov khoom puas tsuaj. Qhov kev puas tsuaj no qhia tau tias yog xim tsis zoo, brittleness, thiab poob ntawm lub zog kho tshuab, ua rau cov khoom kawg siv tsis tau. Txhawm rau daws qhov teeb meem no, cov tshuaj tiv thaiv cua sov tau dhau los ua cov khoom ntxiv tseem ceeb, thiab ntawm lawv,Cov tshuaj ruaj khov barium zinctau tshwm sim los ua ib qho kev xaiv txhim khu kev qha, zoo rau ib puag ncig dua li cov kev xaiv tshuaj lom neeg ib txwm muaj xws li cov tshuaj stabilizers uas muaj cov hlau lead. Hauv phau ntawv qhia no, peb yuav piav qhia txog Barium Zinc Stabilizers yog dab tsi, lawv ua haujlwm li cas, lawv cov duab sib txawv, thiab lawv cov ntawv thov tshwj xeeb hauv cov qauv PVC uas ruaj khov thiab yoog tau.

Ntawm lawv lub hauv paus, Barium Zinc Stabilizers (feem ntau hu uaBa-Zn stabilizerhauv kev lag luam luv luv) yog sib xyawcov tshuaj ntxuav tes ua los ntawm hlau, feem ntau yog tsim los ntawm kev sib xyaw barium thiab zinc nrog cov roj fatty acids ntev xws li stearic lossis lauric acid. Qhov ua rau cov stabilizers no ua haujlwm tau zoo yog lawv qhov kev ua haujlwm synergistic - txhua lub hlau ua lub luag haujlwm sib txawv hauv kev tawm tsam PVC degradation, thiab lawv cov kev sib xyaw ua ke kov yeej cov kev txwv ntawm kev siv hlau ib leeg. Zinc, ua tus thawj stabilizer, ua haujlwm sai sai los hloov cov chlorine atoms hauv PVC molecular saw, tsim cov qauv ester ruaj khov uas nres cov theem pib ntawm kev puas tsuaj thiab khaws cov khoom xim thaum ntxov. Barium, ntawm qhov tod tes, ua haujlwm ua tus thib ob stabilizer los ntawm kev ua kom HCl tso tawm thaum lub sijhawm ua tiav. Qhov no yog qhov tseem ceeb vim HCl yog tus catalyst rau kev puas tsuaj ntxiv, thiab barium lub peev xwm los scavenge nws tiv thaiv cov saw hlau los ntawm kev nrawm. Yog tsis muaj qhov kev sib koom ua ke synergistic no, zinc ib leeg yuav tsim zinc chloride (ZnCl₂), ib qho Lewis acid muaj zog uas ua rau muaj kev puas tsuaj - ib qho xwm txheej hu ua "zinc hlawv" uas ua rau PVC dub sai sai ntawm qhov kub siab. Barium txoj kev ua haujlwm HCl-scavenging tshem tawm qhov kev pheej hmoo no, tsim kom muaj lub kaw lus sib npaug uas muab ob qho tib si zoo heev thaum pib khaws xim thiab kev ruaj khov thermal mus sij hawm ntev.

Cov Barium Zinc Stabilizers raug tsim ua ob hom thawj - kua thiab hmoov - txhua tus tau tsim los rau cov kev xav tau ua tiav thiab cov qauv PVC.Cov kua Ba-Zn stabilizeryog qhov kev xaiv ntau dua rau cov ntawv thov PVC yooj ywm, ua tsaug rau nws qhov yooj yim ntawm kev sib xyaw thiab homogenization nrog cov yas. Feem ntau yaj hauv cov cawv rog lossis cov yas zoo li DOP,cov tshuaj stabilizersNws koom ua ke zoo kawg nkaus rau hauv cov txheej txheem extrusion, molding, thiab calendering, ua rau lawv zoo tagnrho rau cov khoom uas xav tau kev ywj pheej thiab kev ua haujlwm tas mus li. Lawv kuj muaj qhov zoo ntawm kev ntsuas qhov tseeb thiab kev khaws cia, vim tias lawv tuaj yeem yooj yim pumped thiab khaws cia rau hauv cov thoob dej.Cov Hmoov Barium Zinc Stabilizers, los ntawm qhov sib piv, yog tsim los rau cov chaw ua haujlwm qhuav, qhov twg lawv tau koom ua ke thaum lub sijhawm sib xyaw ntawm cov khoom siv PVC tawv. Cov qauv qhuav no feem ntau suav nrog cov khoom ntxiv xws li UV stabilizers thiab antioxidants, txhim kho lawv cov txiaj ntsig rau kev siv sab nraum zoov los ntawm kev tiv thaiv ob qho tib si thermal thiab UV degradation. Qhov kev xaiv ntawm cov kua thiab cov hmoov thaum kawg nyob ntawm hom PVC (rigid vs. flexible), txoj kev ua tiav, thiab cov khoom xav tau kawg xws li kev meej, tiv taus huab cua, thiab tsw qab tsawg.

Kev nkag siab txog Barium Zinc Stabilizers ua haujlwm li cas hauv ob qho tib si PVC tawv thiab hloov pauv tau xav tau kev saib ze dua ntawm cov kev xav tau tshwj xeeb ntawm txhua daim ntawv thov. PVC tawv, uas muaj me ntsis lossis tsis muaj plasticizer, yog siv rau hauv cov khoom uas xav tau kev ruaj khov thiab kev ua haujlwm ntev - xav txog cov qhov rai profiles, cov kav dej plumbing, cov kav dej av thiab cov kav dej phwj, thiab cov kav dej siab. Cov khoom no feem ntau raug rau cov xwm txheej ib puag ncig hnyav, suav nrog lub hnub ci, kev hloov pauv kub, thiab dej noo, yog li lawv cov stabilizers yuav tsum muab kev ruaj khov thermal ntev thiab tiv taus huab cua. Hmoov Barium Zinc Stabilizers yog qhov tshwj xeeb tshaj yog haum rau ntawm no, vim tias lawv tuaj yeem tsim nrog UV tiv thaiv kom tsis txhob muaj xim thiab poob ntawm lub zog kho tshuab dhau sijhawm. Hauv cov kav dej haus, piv txwv li, Ba Zn stabilizer systems hloov cov kev xaiv ua los ntawm cov hlau txhuas kom ua tau raws li cov cai kev nyab xeeb thaum tswj cov kav dej tiv taus corrosion thiab siab. Cov qhov rai profiles tau txais txiaj ntsig los ntawm lub stabilizer lub peev xwm los khaws cov xim sib xws, xyuas kom meej tias cov profiles tsis daj lossis ploj txawm tias tom qab ntau xyoo ntawm kev raug tshav ntuj.

PVC uas yoog tau, uas siv cov tshuaj yas los ua kom yooj ywm, muaj ntau yam khoom, txij li cov khoom rwb thaiv tsev cable thiab hauv pem teb mus rau sab hauv tsheb, cov khoom npog phab ntsa, thiab cov yeeb nkab uas yoog tau. Cov tshuaj Barium Zinc Stabilizers uas ua kua yog qhov kev xaiv zoo tshaj plaws hauv cov ntawv thov no vim lawv sib haum nrog cov tshuaj yas thiab yooj yim rau kev koom ua ke rau hauv cov qauv. Piv txwv li, cov khoom rwb thaiv tsev cable xav tau cov tshuaj stabilizers uas tuaj yeem tiv taus qhov kub siab ntawm extrusion thaum muab cov khoom rwb thaiv tsev hluav taws xob zoo heev. Cov tshuab stabilizer Ba Zn ua tau raws li qhov xav tau no los ntawm kev tiv thaiv kev puas tsuaj thermal thaum lub sijhawm ua thiab xyuas kom meej tias cov khoom rwb thaiv tsev tseem yoog tau thiab tiv taus kev laus. Hauv cov khoom npog pem teb thiab phab ntsa - tshwj xeeb tshaj yog cov khoom ua npuas - Barium Zinc Stabilizers feem ntau ua haujlwm ua cov neeg ua haujlwm rau cov neeg ua haujlwm tshuab, pab tsim cov qauv ua npuas ncauj xav tau thaum tswj cov khoom siv ruaj khov thiab luam tawm tau. Cov khoom sab hauv tsheb, xws li dashboards thiab cov rooj zaum npog, xav tau cov tshuaj stabilizers uas tsis muaj ntxhiab tsw, VOC qis (volatile organic compound) kom ua tau raws li cov cai tswj huab cua nruj, thiab cov kua Ba Zn stabilizer niaj hnub no tau tsim los daws cov kev xav tau no yam tsis muaj kev cuam tshuam rau kev ua tau zoo.

Yuav kom nkag siab txog tus nqi ntawm Barium Zinc Stabilizers, nws yog ib qho pab tau los piv rau lwm cov khoom siv sib xws.PVC stabilizerhom. Lub rooj hauv qab no qhia txog qhov sib txawv tseem ceeb ntawm Barium Zinc (Ba Zn) stabilizers, Calcium Zinc (Ca Zn) stabilizers, thiab Organotin stabilizers—peb ntawm cov kev xaiv siv dav tshaj plaws hauv kev lag luam:

Raws li lub rooj qhia, Barium Zinc Stabilizers nyob hauv nruab nrab uas sib npaug ntawm kev ua tau zoo, tus nqi, thiab kev nyab xeeb ib puag ncig. Lawv ua tau zoo dua Ca Zn stabilizers hauv kev ruaj khov thermal, ua rau lawv haum rau cov ntawv thov uas qhov kub ua haujlwm siab dua lossis kev ruaj khov mus sij hawm ntev yog qhov tseem ceeb. Piv rau Organotin stabilizers, lawv muab cov kev daws teeb meem pheej yig dua yam tsis muaj kev txhawj xeeb txog kev lom nrog qee cov tshuaj Organotin luv luv. Qhov kev sib npaug no tau ua rau Ba Zn stabilizer systems yog qhov kev xaiv nrov hauv kev lag luam uas kev ua raws li txoj cai, kev ua tau zoo, thiab kev siv nyiaj tau zoo yog qhov tseem ceeb - los ntawm kev tsim kho mus rau kev tsim tsheb.

Thaum xaiv Barium Zinc Stabilizer rau ib daim ntawv thov PVC tshwj xeeb, muaj ntau yam tseem ceeb uas yuav tsum tau ua. Ua ntej, qhov sib piv ntawm barium rau zinc tuaj yeem hloov kho kom tau raws li qhov xav tau kev ua tau zoo: cov ntsiab lus barium siab dua ua rau muaj kev ruaj khov thermal ntev, thaum cov ntsiab lus zinc siab dua txhim kho kev khaws xim thawj zaug. Qhov thib ob, cov tshuaj sib xyaw xws li epoxy compounds, antioxidants, thiab phosphites feem ntau ntxiv rau kev ua tau zoo, tshwj xeeb tshaj yog nyob rau sab nraum zoov lossis kev siv siab. Qhov thib peb, kev sib raug zoo nrog lwm cov khoom ntxiv - suav nrog cov yas, cov khoom sau, thiab cov xim - yuav tsum tau txiav txim siab kom ntseeg tau tias cov tshuaj stabilizer tsis cuam tshuam rau cov khoom kawg. Piv txwv li, hauv cov yeeb yaj kiab pob tshab, cov kua Ba Zn stabilizer nrog cov khoom tsiv teb tsaws chaw tsawg yog qhov tseem ceeb kom tswj tau qhov meej.

Saib mus tom ntej, qhov kev thov rau Barium Zinc Stabilizers yuav loj hlob tuaj thaum kev lag luam PVC txuas ntxiv hloov ntawm cov tshuaj lom thiab mus rau cov kev daws teeb meem ruaj khov dua. Cov chaw tsim khoom tab tom nqis peev rau cov qauv tshiab uas txo cov pa phem VOC, txhim kho kev sib raug zoo nrog cov yas bio-based, thiab txhim kho kev ua tau zoo hauv kev ua haujlwm kub siab. Hauv kev tsim kho, kev thawb rau cov tsev txuag hluav taws xob yog tsav kev thov rau cov khoom PVC ruaj khov xws li cov qhov rai profiles thiab rwb thaiv tsev, uas vam khom Ba Zn stabilizers kom ua tau raws li qhov yuav tsum tau ua kom ruaj khov. Hauv kev lag luam tsheb, cov cai tswjfwm huab cua nruj dua yog nyiam cov qauv Barium Zinc uas tsis muaj ntxhiab tsw rau cov khoom sab hauv. Raws li cov qauv no txuas ntxiv mus, Barium Zinc Stabilizers yuav tseem yog lub hauv paus ntawm kev ua PVC, txuas qhov sib txawv ntawm kev ua tau zoo, kev nyab xeeb, thiab kev ruaj khov.

Xaus lus, Barium Zinc Stabilizers yog cov khoom siv tseem ceeb uas ua rau siv tau dav dav ntawm PVC tawv thiab yoog tau los ntawm kev daws qhov tsis ruaj khov ntawm cov polymer. Lawv qhov kev ua haujlwm synergistic ntawm barium thiab zinc muab kev sib xyaw ua ke ntawm kev khaws xim thawj zaug thiab kev ruaj khov thermal ntev, ua rau lawv haum rau ntau yam kev siv. Txawm hais tias nyob rau hauv daim ntawv ntawm cov kua stabilizers rau cov khoom PVC yooj ywm xws li cable rwb thaiv tsev thiab pem teb lossis hmoov stabilizers rau cov ntawv thov tawv xws li cov kav dej thiab cov qhov rai profile, Ba Zn stabilizer systems muab cov nqi tsim nyog, ib puag ncig zoo rau lwm txoj hauv kev rau cov stabilizers ib txwm muaj. Los ntawm kev nkag siab txog lawv cov txheej txheem ntawm kev ua haujlwm, cov ntaub ntawv khoom, thiab cov kev xav tau tshwj xeeb ntawm daim ntawv thov, cov chaw tsim khoom tuaj yeem siv Barium Zinc Stabilizers los tsim cov khoom PVC zoo uas ua tau raws li qhov xav tau ntawm cov lag luam niaj hnub thiab cov cai.