Nyob rau hauv cov txheej txheem ntawm PVC ntau lawm, vim hais tias cov txheej txheem ntau lawm tswj qhov Performance index mis tsis thiab lwm yam, tib hom PVC ua los ntawm txawv tuam txhab uas muag (SG5 hom piv txwv) nyob rau hauv qhov kev ua tau zoo yog txawv rau PVC ua lag luam, feem ntau nyob rau tib lub sij hawm. lub sij hawm siv ntau yam khoom, thiab cov tuam txhab sib txawv hauv kev tsim cov PVC hauv qhov kev ua tau zoo sib txawv (txawm tias me), xav tau cov tuam txhab ua lag luam hauv cov txheej txheem ntawm kev tsim khoom rau cov qauv kev hloov kho kom raug, PVC, lossis lwm yam tib lub mis rau cov tuam txhab sib txawv yuav tshwm sim hauv Kev ua cov teeb meem zoo li no, rau PVC ua lag luam, nkag siab txog qhov ua tau zoo ntawm txhua PVC, tuaj yeem tsim raws li kev ua tau zoo ntawm nws cov khoom, kom tsis txhob dig muag debugging los ntawm cov khoom pov tseg rau PVC cov tuam txhab tsim khoom, kom nkag siab txog lub tuam txhab. ntau lawm ntawm PVC nrog rau lwm lub tuam txhab nyob rau hauv qhov kev ua tau zoo sib txawv, muaj peev xwm qhia txog lawv lub zog, them nyiaj rau lawv tus kheej tsis muaj zog, ua rau cov khoom ntau dua kev ua lag luam kev sib tw, tus sau tsuas yog rau domestic AB c DE manufacturers ntawm PVC ntawm pom meej viscosity ntawm yaj pom kev ua tau zoo kuaj. Nyob rau hauv qhov kev sim, tus sau tag nrho raws li lub hauv paus ntsiab lus ntawm kev nrhiav qhov tseeb los ntawm qhov tseeb, kev ntsuam xyuas ncaj ncees thiab lub hom phiaj, raws li cov kev xav ntawm cov txheej txheem ntawm PVC, qhov kev ua tau zoo ntawm cov khoom ntsuas tau muab piv.
(1) PVC ua los ntawm Hoobkas C muaj viscosity siab tshaj.Qhov siab dua qhov viscosity, qhov nyuaj dua PVC resin plasticizing, kev ua haujlwm nyuaj dua;Qhov qis tshaj viscosity yog A, B, E Hoobkas tsim PVC, viscosity tsawg, PVC resin yog yooj yim rau plasticize, yooj yim rau txheej txheem.
(2) Qhov pom tseeb ntom ntom ntawm PVC ua los ntawm lub Hoobkas B yog qhov loj tshaj plaws, thiab cov khoom tsim los ntawm lub Hoobkas E yog qhov tsawg tshaj plaws.Nyob rau hauv cov txheej txheem ntawm PVC resin ua, qhov me me ntawm PVC resin hais (uas yog, qhov ntau dua qhov pom tseeb ntom), qhov muag muag ntau dua cov khoom tsim thiab "ntses qhov muag" tus lej tsawg dua, yooj yim rau kev ua.
(3) Tus nqi ntawm cov yas nqus dej yog qhov loj tshaj plaws hauv PVC ua los ntawm lub Hoobkas C thiab qhov tsawg tshaj plaws hauv PVC ua los ntawm lub Hoobkas B. Qhov ntau dua ntawm cov yas nqus dej, PVC resin hauv cov txheej txheem sib tov yog yooj yim dua rau nqus cov yas, roj nplaum thiab lwm yam. ua additives, qhov zoo ntawm qhov sib tov yog zoo, nws cov kev ua melting kev ua tau zoo kuj zoo dua.
(4) Tus naj npawb ntawm "ntses qhov muag" ua los ntawm B Hoobkas yog PVC feem ntau."Fisheye" yog qhov tseem ceeb ntawm cov txheej txheem polymerization vim yog qhov tsis zoo thiab tsim cov qauv me me ntawm cov qauv ntawm polymer PVC, uas nyuaj rau plasticize hauv cov txheej txheem ntawm PVC ua, muaj kev cuam tshuam zoo rau cov khoom zoo, yog li qhov tsawg dua. tus naj npawb ntawm "fisheye" zoo dua.
(5) Los ntawm qhov kev xav ntawm lub sij hawm thermal stabilization, PVC ua los ntawm lub Hoobkas B muaj lub sij hawm ntev tshaj thermal stabilization, thaum PVC ua los ntawm Hoobkas D muaj lub sij hawm luv tshaj thermal stabilization.Lub thermal stability ntawm resin ncaj qha cuam tshuam rau kev ua cov khoom, tshwj xeeb tshaj yog rau cov khoom tawv.Txhawm rau tiv thaiv PVC decomposition nyob rau hauv cov txheej txheem ua, ncua lub sij hawm ua, yuav tsum tau kho cov tshuaj stabilizer nyob rau hauv cov mis raws li nws stability.
Post lub sij hawm: Aug-08-2022