Polyvinyl chloride (PVC) additives, raws li indispensable txhawb cov ntaub ntawv nyob rau hauv PVC ua, muaj logistics zog uas ncaj qha cuam tshuam rau kev nyab xeeb, zoo stability, thiab muab saw efficiency thaum lub sij hawm cia thiab thauj. tiv thaiv kev ua haujlwm tsis zoo, muaj kuab paug txaus ntshai, thiab kev nyab xeeb xwm txheej.
Los ntawm lub cev kev xav, PVC additives feem ntau suav nrog peb pawg: hmoov, granules, thiab kua dispersions, txhua tus muaj nws tus kheej logistics zog. Cov khoom siv hmoov muaj qhov loj me me, yooj yim tsim cov plua plav. Thaum lub sij hawm thauj khoom, tshem tawm, thiab kev thauj mus los, nws yog ib qho tsim nyog los tiv thaiv cov plua plav tawm thiab sib sau ua ke ntawm cov plua plav tawg, yuav tsum muaj cov qauv siab dua rau kev ua pa, tiv thaiv - ntsuas zoo li qub, thiab kev tiv thaiv cov neeg ua haujlwm. Cov khoom siv granular, tom qab granulation los yog txheej, muaj cov dej ntws zoo dua thiab cov hmoov av tsis zoo dua li cov hmoov, ua kom yooj yim rau kev thauj khoom thiab tshem tawm thiab tsis siv neeg ntsuas. Txawm li cas los xij, kev saib xyuas yuav tsum tau them rau kev tiv thaiv ya raws thiab kev tiv thaiv tawm tsam sab nraud kom tsis txhob muaj kev hloov pauv hauv cov khoom me me uas cuam tshuam rau cov teebmeem cuam tshuam tom ntej. Liquid dispersions feem ntau yog plasticizer thiab stabilizer emulsions los yog masterbatch carrier solutions, uas yog flammable, volatile, los yog corrosive. Lawv yuav tsum muaj kev tswj xyuas nruj heev ntawm kev ntim khoom ntim, qhov kub thiab txias, thiab tiv thaiv kom tsis txhob yaig, thiab yuav tsum ua raws li cov kev cai cuam tshuam rau cov tshuaj phem lossis cov kua dej tshwj xeeb thaum thauj.
Hais txog kev ruaj ntseg tshuaj, qee cov additives rhiab heev rau tshav kub, lub teeb, noo noo, thiab oxygen. Piv txwv li, hlau xab npum-raws li cov cua sov stabilizers yog nquag nqus dej noo thiab clumping los yog hydrolyzing nyob rau hauv siab - kub thiab siab - av noo ib puag ncig, cuam tshuam rau dispersibility thiab thermal stability. Qee cov organotin lossis phosphate plasticizers yuav decompose los yog oxidize nyob rau hauv lub teeb muaj zog los yog kub kub, ua rau darkening ntawm cov xim thiab kev ua tau zoo degradation. Yog li ntawd, kev thauj mus los thiab kev khaws cia yuav tsum tau tswj qhov kub thiab txias thiab cov av noo nyob rau hauv qhov chaw tsim nyog, thiab siv lub teeb ci - pov thawj, airtight ntim kom qeeb degradation. Rau cov khoom siv photosensitive, lub teeb -shielding ntim los yog ntim cov ntaub ntawv aluminium yuav tsum tau siv los txo qhov kev pheej hmoo ntawm photoinduced tshua.
Kev sib raug zoo thiab hla - kev pheej hmoo kis kab mob yog lwm yam tseem ceeb ntawm kev thauj mus los. Thaum sib txawv ntawm cov additives coexist thaum lub sij hawm cia thiab tsheb thauj mus los, tivthaiv tsiv teb tsaws los yog tshuaj tej zaum yuav tshwm sim yog hais tias lub ntim yog puas los yog kaw tsis zoo, ua rau irreversible kev ua tau zoo degradation. Piv txwv li, kev sib cuag ncaj qha ntawm acidic thiab alkaline stabilizers yuav neutralize lawv, thiab plasticizers yuav adsorbed thiab muaj lawv cov ntsiab lus zoo txo thaum coexisting nrog tej yam adsorbent hmoov. Yog li ntawd, cov txheej txheem logistics yuav tsum tau ua raws li qhov chaw khaws cia, daim ntawv qhia meej, thiab tiv thaiv - kev ntsuas sib xyaw, thiab kev sib cuag ncaj qha ntawm cov khoom sib txawv lossis pawg yuav tsum raug zam hauv cov tsheb thauj mus los thiab cov chaw cia khoom.
Kev nyab xeeb thiab kev ua raws cai yog qhov tseem ceeb ntawm kev thauj mus los. Qee cov stabilizers uas muaj cov hlau hnyav xws li txhuas thiab cadmium, thiab qee cov organic hnyav-raws li plasticizers yog cov tshuaj tswj. Lawv qhov chaw khaws cia thiab kev thauj mus los yuav tsum ua raws li cov cai tswj hwm tshuaj lom neeg, thiab tsim nyog tsim nyog, cov cim ceeb toom, thiab cov cuab yeej tiv thaiv xwm txheej ceev yuav tsum tau muab. Cov kua dej ntxiv yuav tsum ua kom tau raws li kev tiv thaiv kev xau, kev tiv thaiv hluav taws thiab tawg, thiab kev tiv thaiv kev noj qab haus huv thaum lub sijhawm thauj mus los, thiab cov tsheb thiab cov thawv yuav tsum raug xaiv raws li kev cai thauj mus los thoob ntiaj teb lossis hauv tebchaws (xws li ADR, IATA, GB 12268, thiab lwm yam). Rau cov khoom siv ntxiv uas siv rau hauv kev sib cuag zaub mov, kev kho mob, lossis cov khoom siv me nyuam yaus, nws yog ib qho tseem ceeb kom ntseeg tau tias lawv cov txheej txheem logistics tsis muaj tshuaj lom thiab muaj kev phom sij kom ua tau raws li qhov kawg - siv cov qauv nkag.
Logistics efficiency thiab kev lag luam yuav tsum tau suav hais tias yog holistically nrog rau cov additive tus yam ntxwv. Powder and granular products, due to their higher density and standardized packaging, are suitable for large-volume long-distance transportation and mechanized loading and unloading, resulting in relatively low unit transportation costs. Cov khoom ua kua, txawm li cas los xij, xav tau cov tsheb thauj khoom tshwj xeeb lossis cov thawv ntim khoom thiab muaj cov kev xav tau siab rau kev tswj xyuas qhov kub thiab txias thiab kev tiv thaiv kev nyab xeeb, ua rau cov nqi logistics nce ntxiv thiab nyuaj. Txhawm rau txhim kho kev ua tau zoo, cov chaw faib khoom hauv cheeb tsam tuaj yeem tsim nyob rau hauv cov chaw tsim khoom lossis cov chaw khaws khoom lag luam kom ua cov khoom me me -batch, cov khoom xa tuaj raws li cov neeg siv khoom xaj, txo cov khoom lag luam rov qab thiab rov ua dua kev thauj mus los.
Hauv cov ntsiab lus, cov khoom siv logistics ntawm PVC additives suav nrog kev hloov kho lub cev, tshuaj lom neeg ruaj khov, kev pheej hmoo sib raug zoo, kev tswj hwm kev nyab xeeb, thiab kev xav txog nyiaj txiag. Kev nkag siab zoo thiab kev tswj hwm ntawm cov khoom no tuaj yeem ua kom muaj txiaj ntsig zoo thiab kev nyab xeeb thaum khaws cia thiab kev thauj mus los, tswj cov saw hlau ruaj khov, thiab tiv thaiv kev ua haujlwm tsis zoo lossis kev nyab xeeb los ntawm kev tswj tsis tau, yog li muab PVC ua lag luam nrog kev txhawb nqa thiab txhim khu kev qha raw khoom thiab txhim kho tag nrho cov khoom lag luam thiab kev ua lag luam teb.