CPP yog polypropylene (PP) zaj duab xis uas tsim los ntawm daim kab xev casting thiab extrusion txheej txheem hauv kev lag luam yas. Cov yeeb yaj kiab no txawv ntawm BOPP (bidirectional polypropylene) zaj duab xis. Nws yog ib zaj yeeb yaj kiab uas tsis yog kev qhia. Nws muaj qhov zoo ntawm cov pob tshab zoo, zoo nruj, zoo heev thaum tshav kub kub tsis kam thiab yooj yim tshav kub sealing. Ntawm lawv, zoo barrier thiab ua noj ua haus kuj yog nws cov yam ntxwv zoo kawg li. Piv nrog rau lwm cov yeeb yaj kiab xws li HDPE, tsiaj thiab PVC, CPP zaj duab xis muaj tus nqi qis dua thiab cov zis ntau dua.
Nyob rau hauv kev ua lag luam, CPP zaj duab xis muaj ntau yam khoom, uas yuav muab faib ua peb pawg: composite film (GCPP), aluminized substrate (mCPP) thiab ua noj ua haus zaj duab xis (rcpp). Composite zaj duab xis yog ib zaj duab xis qis kawg ntawm CPP zaj duab xis ntau yam, nrog kev poob qis hauv kev lag luam sib piv nrog cov xyoo dhau los. Nyob rau hauv xyoo tas los no, qhov kev faib ua feem ntawm cov yeeb yaj kiab qis qis qis qis, thaum qhov kev faib ua feem ntawm cov yeeb yaj kiab ua yeeb yaj kiab nthuav dav me ntsis.
Lub thickness ntawm CPP zaj duab xis yog feem ntau ntawm 25-50um, thiab lub thickness ntawm ua noj CPP zaj duab xis yog feem ntau ntawm 60-80mm, uas muaj peev xwm tiv taus kub kub ntawm 100-135 ℃ rau li 30 feeb. Hais txog kev ntim khoom noj, CPP ua yeeb yaj kiab ua yeeb yaj kiab, ua ib lub hnab yas zaj duab xis sib xyaw uas tuaj yeem ua kom sov, muaj qhov zoo ntawm cov thawv ntim khoom thiab cov hnab ntim dej kub npau npau, uas zoo dua li cov hnab yas lossis cov hnab ntim khoom noj khov. Cov zaub mov tsis zoo nyob rau hauv lub hnab, sterilized thiab rhuab ntawm qhov kub thiab txias, thiab tuaj yeem noj tau tom qab tshem tawm.
CPP zaj duab xis hauv tsev tau tsim los ntawm 1980s txog tam sim no, thiab muaj peev xwm ntau lawm thiab qib ntau lawm. Tam sim no, cov khoom siv tshwj xeeb hauv CPP feem ntau yog los ntawm binary thiab ternary khoom tsim los ntawm Shanghai Petrochemical, Yanshan Petrochemical, Dushanzi Petrochemical thiab Maoming Petrochemical. Txawm li cas los xij, qhov sib txawv ntawm CPP zaj duab xis cov ntaub ntawv tshwj xeeb yog pom tseeb. Kwv yees li 30% ntawm cov ntaub ntawv tshwj xeeb cia siab rau kev xa khoom, tshwj xeeb tshaj yog cov qib siab CPP zaj duab xis cov ntaub ntawv tshwj xeeb, uas txwv kev txhim kho thiab kev loj hlob ntawm CPP rau cov yeeb yaj kiab qib siab.
Nws yog tsim nyog hais tias tsis ntev los no, thawj pawg ntawm ntau tshaj 300 tons ntawm CPP cov khoom tshwj xeeb h3080 cov khoom ntawm nws tus kheej tsim los ntawm Quanzhou Petrochemical tau ua tiav pilot tsim nyob rau hauv polypropylene cog. Cov tsos ntawm cov khoom no yog siv lead ua ntshiab, cov khoom sib xws, thiab cov duab zoo li cov nplej tshiab tshiab. Kev ua tiav ntawm cov ntaub ntawv tshiab rau hauv cov kab ntim khoom kuj tseem qhia tau tias Quanzhou Petrochemical tau ua cov kauj ruam hauv kev ywj pheej ntawm cov khoom siv polyolefin tshiab thiab ntxiv dag zog rau nws txoj kev sib tw ua lag luam hauv South China.
Xie chongze, tus neeg teb xov tooj ntawm Quanzhou Petrochemical Polypropylene Cog, ib zaug tau hais tias qhov tsis nco qab tshaj plaws hauv cov txheej txheem tsim khoom no yog kov yeej qhov teeb meem ntawm" kev kub ntxhov loj thiab kev tso tseg" ntawm polypropylene cog extrusion granulator. Tsis tas li ntawd, ntau yam teeb meem xws li kev hloov pauv catalyst thiab kev kho kom zoo ntawm cov txheej txheem yuav tsum tau maj mam kov yeej kom ntseeg tau tias kev ua haujlwm ruaj ntseg thiab ruaj khov ntawm chav tsev.
Txawm hais tias R& amp; D thiab nce qib ntawm CPP cov ntaub ntawv tshwj xeeb yog siab, CPP kev lag luam phaj yog me me, uas ua rau cov lag luam hauv tsev muaj kev txhawj xeeb. Txawm li cas los xij, nws yog qhov tsis lees paub tias R& amp; D thiab kev txhawb nqa ntawm cov khoom siv tshwj xeeb hauv CPP yog qhov tseem ceeb los txo tus nqi ntawm cov lag luam hauv qab thiab paub txog ntau yam kev xaiv ntawm raw khoom. Nyob rau hauv xyoo tas los no, CPP zaj duab xis tuam ntxhab tau maj mam siv cov kev ntsuas xws li kev tswj tsis siv neeg, kev txhim kho cov pwm yas thiab cov khoom noj khoom noj khoom haus hauv cov txheej txheem ntawm kev txhim kho cov cuab yeej tsim khoom, uas tau txhim kho kev ua tau zoo, zoo thiab tsim tau ntawm CPP zaj duab xis. Raws li kev soj ntsuam ntawm lub koom haum tshawb fawb kev lag luam yav tom ntej, CPP kev lag luam nplai yuav ntau dua 16 billion yuan hauv 2025. Nyob rau yav tom ntej, kev ua lag luam tseem yuav muab cov kev xav tau siab dua rau CPP cov tuam txhab thiab cov khoom siv tshwj xeeb high-end.
Raws li kev txheeb cais ntawm Zhuo Chuang cov ntaub ntawv, nws xav tias nyob rau hauv ib nrab ntawm 2021, Tuam Tshoj' s CPP kev ua lag luam yuav ntxiv 9 cov kab ntau lawm thiab 56000 tons ntawm cov peev txheej ntau lawm. Nyob rau hauv cov nqe lus ntawm kev faib, East Tuam Tshoj, South Tuam Tshoj thiab North Tuam Tshoj yog lub ntsiab concentration cheeb tsam ntawm CPP ntau lawm muaj peev xwm, accounting rau txog 87%. Kev nthuav dav ntawm Central Tuam Tshoj tau pom tseeb hauv ob xyoos tsis ntev los no, thiab qee lub tuam txhab tseem muaj cov phiaj xwm tsim khoom.