Cov yam ntxwv ntawm cov khoom siv calcium zinc stabilizers uas zoo rau ib puag ncig yog dab tsi:

Cov yam ntxwv ntawm cov khoom siv calcium zinc stabilizers uas zoo rau ib puag ncig yog dab tsi:

Cov tshuaj calcium zinc stabilizers yog cov nitric oxide synthases uas muaj cov ntsev calcium zinc organic, hypophosphite esters, polyether polyols, antioxidants, thiab cov organic solvents. Cov tshuaj calcium zinc stabilizers muaj kev sib raug zoo nrog epoxy resins thiab thickeners, pob tshab zoo, thiab tsis yooj yim rau precipitate. Lawv siv me me thiab yooj yim siv. Txawm li cas los xij, lawv muaj qhov tsis zoo ntawm qhov tsis muaj zog ntub, txo qhov softening point ntawm cov khoom, thiab kev khaws cia ntev yuav ua rau pwm loj hlob. Cov khoom siv khov kho calcium zinc xab npum stabilizers feem ntau yog ua los ntawm polyether xab npum, ua raws li lauric acid xab npum thiab fatty acid xab npum. Lub yam ntxwv ntawm calcium zinc stabilizers yog qhov ntub zoo, uas tsis txo qhov softening point ntawm PVC cov khoom tawv, thiab yog qhov tsim nyog rau kev tsim thiab ua cov kav dej PVC tawv thiab PVC profiles. Cov khoom tsim thiab ua los ntawm microemulsion technology tuaj yeem tshem tawm cov qhov tsis zoo uas tau hais los saum toj no.

Peb feem ntau tsom mus rau ob yam los ua kom zoo dua: txhawm rau txhim kho cov xim thaum ntxov, ntxiv cov xab npum zinc kom txaus, thiab siv cov tshuaj antioxidants los kho cov zinc chloride uas tsis muaj teeb meem, uas ua rau cov zinc ntau thiab txo cov xab npum zinc ntxiv kom txo qhov kub ntawm zinc.

Kev siv cov tshuaj preservatives los hloov cov txheej txheem xim dhau los ua rau muaj kev sib xyaw ua ke zinc qis, uas siv dav tsis yog rau cov khoom mos xwb tab sis kuj siv rau hauv kev ruaj khov thermal thiab clarity ntawm calcium zinc stabilizers. Nws kuj tau siv tau zoo hauv kev tsim khoom thiab kev ua cov khoom tawv, txhawm rau kom tswj tau qhov system tswj calcium/zinc zoo dua thaum tiv thaiv kev xim thaum ntxov thiab tiv thaiv kev hlawv zinc.

Feem ntau, cov ntsev txhuas tsuas yog txuas rau ntawm qhov chaw ntawm cov khoom PVC, thiab lawv cov nyhuv yog sib npaug rau kev thaiv qhov kev sib txuas ntawm cov khoom PVC, ua rau qeeb qeeb plasticization, txo qhov sib txhuam ntawm cov khoom PVC, thiab txo qhov txiav nyhuv hauv PVC. Cov khoom siv tsim khoom dais qhov hnyav dua, thiab qhov ntau ntawm cov ntsev txhuas siv yog siab dua. Qhov ntom ntawm cov khoom ntawm cov ntsev txhuas, qhov tseem ceeb dua qhov cuam tshuam thib ob. Cov khoom ntsuab ib txwm muaj thiab cov khoom zoo rau ib puag ncig xws li calcium zinc stabilizers muaj zog electronegativity thaum lub sijhawm plasticization. Cov pab pawg ua haujlwm optically muaj qee qhov kev kis kab mob nrog cov ntsiab lus sib txuas subacute ntawm PVC epoxy resin, tsim cov ntawv cog lus nrog lub zog sib txuas muaj zog heev, uas ua rau tsis muaj zog lossis tshem tawm qhov kev nyiam ntawm cov ntawv cog lus ion hauv ntau txheej ntawm PVC. Qhov no yog qhov qhib saw ntawm PVC uas yog coiled nrog ib leeg, ua rau nws yooj yim dua rau kev sib kis sab nraud. Cov qauv molecular ntawm cov pab pawg ua haujlwm ua rau nws yooj yim dua rau PVC kis. Qhov nruab nrab ciam teb pab txhawb kev plasticization ntawm PVC epoxy resin.