Lub thoob yas tsim cov nplai tsim cov kev ua tiav Kev loj hlob yas ua yog tsim los ntawm cov khoom siv qis, kev siv zog mus rau qhov zoo, kev siv zog tsawg, ntau yam khoom siv thiab cov thev naus laus zis. Lub thoob yas ntim kev lag luam siv cov lag luam los txhim kho lawv cov kev sib tw thiab kev muaj peev xwm nyob rau hauv kev ua lag luam los ntawm thev naus laus zis kev tsim kho tshiab thiab kev tsim kho dua tshiab. Kev lag luam kev lag luam yas kev lag luam yas tau tshwj xeeb cov qauv thiab kev ua lag luam los ntawm kev ua lag luam, thiab kev faib cov chaw ua haujlwm tau raug qhia meej meej. Txij ntawm xoob xaim mus rau kev tsim kho kom nruj me ntsis, qhov kev lag luam agglomeration tau nce ntau ntxiv, thiab cov kev loj hlob tau raws li cov qauv paub tab.
Kev ua teb ntawm cov thoob yas yuav txuas ntxiv mus ntxiv, thiab nws yog qhov tsim nyog los tsim ntau hom khoom sib txawv nrog kev siv tus nqi siab. Nrog kev txhim kho qib ntawm kev siv tshuab ua yas, ntau hom yas yuav cais, uas yuav txhawb txoj kev lag luam tshwj xeeb thiab cais tawm, thiab qib tag nrho ntawm kev lag luam plastics yuav raug txhim kho.
Cov nyhuv ntawm cov thoob yas ua rau ntawm kev ua cov siv lead ua raw cov ntaub ntawv
1. Cawv ntawm raw khoom tiag tiag hais txog cov seem catalyst cuam tshuam ntawm cov ntaub ntawv raw.
Qhov tseeb, ntau zaus nws tshwm sim los ntawm cov khoom siv. Piv txwv, tuag-txiav ib feem ntawm cov tshuab cua tshuab cua tsis zoo tsim thiab muaj lub kaum sab hauv tuag, uas ua rau cov khoom me me ntawm cov khoom siv ua kom sov, dhau-polymerized thiab ua rau lub sijhawm ntev. Qhov ntev-rau-taub piv ntawm cov tshuab moulding tshuab thiab cov qauv siv tsis zoo tuag yog qhov tsis zoo. Etc.; saum cov ntsia hlau los yog sab hauv phab ntsa sab hauv ntawm lub thoob, vim qhov kev nthuav tawm mus sij hawm ntev, qee qhov khoom tsim hluav taws xob tau tsim, thiab cov khoom muaj hluav taws xob no tuaj yeem siv raws li cov ntsiab lus gel kom txuas ntxiv adsorb ntau impurities mus rau nws, thiab kuj txuas ntxiv mus rau zaj duab xis Cov. Ua rau pom qhov kub taw tes.
Hauv cov ntsiab lus, kev tu ncua ntawm cov cuab yeej siv moulding yog tau txais txiaj ntsig los txo qis siv lead ua ntau lawm.
Muaj qee qhov catalyst seem hauv kev tsim cov khoom siv polymer. Thaum lub sij hawm molding txheej txheem, cov polymer yaj uas muaj cov nplaim hluav taws xob txuas rau saum npoo ntawm cov khoom siv ntau lawm. Thaum siab kub, qhov seem catalyst txuas ntxiv yauv raug catalytic polymerization ntawm lub polymer, yog li tsim cov polymerization ntau dhau. Yam.
Txawv txawv cov chaw tsim khoom lag luam muaj cov khoom sib txawv polymerization thiab cov txheej txheem, thiab cov purity ntawm residual catalysts yog txawv. Nws muaj cov teebmeem sib txawv ntawm cov siv lead ua lattice tiam ntawm cov polymer hauv cov zaj duab xis tsim. Piv txwv li, cov ntsiab lus tsis tshua muaj catalyst hauv cov polymer yog qhov tsawg, cov khoom siv qauv yog qhov zoo, thiab cov ntaub ntawv raw zoo. Nws muaj tsawg dua cov ntsiab lus siv lead ua.
Lub iav siv hluav taws xob feem ntau yog los ntawm kev siv tshuab, kev siv tshuab, khoom siv, thiab lwm yam. Txawm li cas los xij, cov txheej txheem los ntawm cov polymer tsim cov ntsiab lus siv lead ua yog vim lub sijhawm ua ib lub polymer, yog li nws muaj peev xwm ua rau lub ntsej muag siv lead ua ntev npaum li cov polymer tseem yuav tsim.
2. Qhov cuam tshuam ntawm cov pa oxygen hauv lub polymer yog qhov tseem ceeb vim tias thaum kev ntsuas kub yog qhov siab, oxygen yuav oxidize lub polymer tsim cov dawb radicals mus adsorb rau ntawm phab ntsa ntawm kev tuag, thiab cov dawb radical ua qhov chaw nquag los pib cov tshuaj tiv thaiv ntawm lwm cov roj molecular polymer, txoj kev ua ib siab ntawm no. Cov polymer tsis ruaj khov ntawm qhov tsis txaus yuav ua tus taw tes ntawm qhov kub thiab txias.
Ntxiv qee qhov ntsuas zog ntawm cov tshuaj tua kab mob tiv thaiv cov pa oxygen los ntawm kev ua rau ntawm lub ntsej muag siv lead ua.
3. Cuam tshuam ntawm kev siv tshuab thiab khoom siv Cov txheej txheem thev naus laus zis yog cuam tshuam los ntawm kev tswj qhov kub thiab txias, thiab lwm yam. Cov khoom siv raw yog kho kom sov, dhau-polymerized thiab xeb pov tseg rau lub sijhawm ntev, uas ua rau lub cim ntawm cov ntsiab lus siv lead ua. https://www.fhpails.com
