Hmoov txhuv nplej siab raws yas kev loj hlob xwm txheej, cov khoom lag luam zoo
Hmoov txhuv nplej siab raws yas kev loj hlob cov xwm txheej
Cov hmoov txhuv nplej siab-based bioplastics muaj keeb kwm txog 30 xyoo ntawm kev tshawb nrhiav thiab kev txhim kho. Nws yog cov yas ntim biodegradable nrog kev tshawb nrhiav keeb kwm ntev tshaj plaws, kev siv cov thev naus laus zis ntau tshaj plaws, kev lag luam loj tshaj plaws thiab cov khoom lag luam siab tshaj plaws. Thaum xyoo 1980s, kev tshawb nrhiav thiab kev txhim kho ntawm cov hmoov txhuv nplej siab hloov tshiab thiab cov khoom siv degradable yas alloy masterbatch ntawm tag nrho biodegradable lossis soluble plastics, kev sib xyaw ntawm cov hmoov txhuv nplej siab thiab biodegradable resin tau muaj nuj nqis. Ntawm lawv, cov ua tau zoo tshaj plaws yog "MaterBi" ntawm Novamont, Ltalis, uas yog tus qauv hauv cov txheej txheem interpenetrating polymer polymer alloy muaj li ntawm cov hmoov txhuv hloov pauv thiab hloov kho cawv. Nws muaj cov cuab yeej ua zoo, ua kev coj ua theem nrab thiab kev siv tshuab. Kev ua tau zoo thiab zoo heev biodegradability. Tsis tas li ntawd, "Vinex" tsim los ntawm Cov Khoom Siv Cua & Tshuaj Lag Luam ntawm Tebchaws Meskas yog cov khoom siv roj ua raws li polyvinyl cawv muaj qhov nruab nrab ntawm polymerization, thiab muaj dej solubility, thermoplastic processability thiab biodegradability, thiab tau txais kev saib zoo hauv xyoo tas los.
Xyoo tsis ntev los no, cov teb chaws feem ntau hloov lawv txoj kev tshawb fawb tsom rau cov plastics uas nce cov hmoov txhuv nplej siab ntau li ntau tau, thiab tau tsim qee cov ntaub ntawv muaj kev puas tsuaj nrog cov khoom zoo heev, thiab txawm tias tau txais cov hmoov txhuv nplej tshiab tsis muaj hluavtaws polymers, namely thermoplastic hmoov txhuv nplej siab. "Novon" biodegradable cov khoom tsim los ntawm Warner-Lambert hauv Tebchaws Meskas muaj cov ntsiab lus nplej siab txog ntau dua 90%. Nyiv Lub Tuam Txhab Tuam Txhab thiab Michigan Lub Koom Haum ntawm Kev Tsim Kho Tshuab tau sib koom tsim cov hmoov txhuv nplej siab uas muaj qhov zoo ntawm cov dej tsis kam. Ntxiv rau, Sumitomo Corporation ntawm Nyij Pooj thiab Ferrizz ntawm Ltalis kuj tshaj tawm tias lawv tau kawm tiav tag nrho cov hmoov txhuv nplej siab nrog cov hmoov txhuv nplej siab ntawm 90%. Hauv kev tsim cov thermoplastic hmoov txhuv nplej siab rau kev tsim cov kab mob biodegradable, cov koom haum tshawb fawb xws li lub koom haum German Batekke, American Warner-Lambert tuam txhab thiab Swiss University tau ua tiav zoo. Lub Australian National Center rau Kev Npaj Ua Khoom Noj thiab Ntim Khoom Noj tau qhia cov tshuab cov hmoov txhuv nplej tshiab nrog roj khov zoo, ua kom khov thiab ua cov pwm tso tawm. Cov khoom yog mos, pob tshab, siab-zog, thiab muaj tus nqi tswj kev tiv thaiv kev tiv thaiv. Nws tuaj yeem siv los ua kev ua liaj ua teb thiab cov khoom noj. Ntim zaj duab xis thiab lwm yam khoom.
Tuam Tshoj cov hmoov txhuv nplej siab tau tsim ua ntej los ntawm lub koom haum ntawm Kev Siv Chemistry ntawm Jiangxi Academy ntawm Kev Tshawb Fawb thaum xyoo 1980s. Raws li cov ntsiab lus tsis tiav, muaj ntau dua 60 lub tsev kawm qib siab, cov koom haum tshawb nrhiav thiab cov lag luam koom nrog txoj kev tshawb fawb. Tuam Tshoj tab tom tsim cov cuab yeej loj hauv kev tshawb fawb thiab kev txhim kho cov hmoov txhuv nplej siab ua kua mis.
Lub hmoov txhuv hloov dua tshiab thiab hloov pauv los ntawm cov txheej txheem tshuaj, thiab cov hmoov txhuv hloov pauv muaj peb qho tseem ceeb: 1. Hydrophobicity. Hmoov txhuv yog kiag li hydrophobic tom qab kev hloov tshuaj, thiab nws cov ntsiab lus ya raws yog <1%, uas="" muaj="" qhov="" sib="" xyaw="" tau="" zoo="" nrog="" lwm="" cov="" khoom="" siv="" hluavtaws=""> 2, kub kuj. Kev hloov cov hmoov txhuv tuaj yeem tuaj yeem tiv taus nrog qhov kub siab txog 230 ° C thaum lub sijhawm ua cov thermoplastic tsis muaj daj los lwj. 3. Cov Thermoplastic. Cov hmoov txhuv hloov pauv tuaj yeem hloov tau thermoplastically hauv cov khoom siv yas ua khoom siv. Cov hmoov txhuv nplej siab-based plastics uas ua los ntawm lub tuam txhab tau muab faib ua ob hom: cov xyoob thiab cov xyoob ntoo. Lawv muab faib ua cov tshuab cua tshuab, txhaj tshuaj plastics, cov ntaub ntawv thiab cov khoom siv foaming raws li cov txheej txheem sib txawv. Lawv tuaj yeem siv rau hauv kev lag luam thiab chaw muag tshuaj hloov chaw ntawm roj av zoo tib yam. Ntim cov zaub mov, khoom siv hluav taws xob thiab lwm yam khoom lag luam, khoom siv hauv chav ua noj, khoom ua si thiab cog paj. Yog li, cov peev txheej ntau ntawm cov roj tau txais kev cawmdim, cov pa roj carbon dioxide raug txo kom tsawg, khib nyiab tsis raug mob, thiab kev txhim kho hauv kev ua liaj ua teb thiab cov nyiaj tau los ntawm cov neeg ua liaj ua teb, thiab kev tsim kho kev lag luam hauv kev nce qib.
Hmoov txhuv nplej siab-based yas Khoom zoo
Piv nrog cov khoom lag luam yas qub, qhov zoo ntawm cov hmoov txhuv nplej siab thiab cov khoom lag luam muaj raws li hauv qab no:
(1) Cov kev ua tau zoo sib xws: Nws muaj qhov zoo tib yam thiab zoo ib yam li cov khoom yas yas ntawm tib hom;
(2) Kev tiv thaiv ib puag ncig: cov hmoov txhuv nplej siab-based bio plastics thiab cov khoom lag luam muaj qhov zoo ntawm kev txuag roj av thiab txo cov pa roj carbon dioxide; cov hmoov txhuv nplej siab-based biodegradable plastics thiab cov khoom lag luam muaj qhov zoo ntawm tiav biodegradation, compostability thiab tsis muaj kev puas tsuaj pov tseg;
(3) Kev Nyab Xeeb: Cov hmoov txhuv nplej siab hloov khoom thiab cov khoom lag luam tsis muaj cov tshuaj lom thiab cov khoom tsis haum xws li cov yas, cov bisphenol A thiab cov hlau hnyav. Cov zaub mov qib cov khoom noj tau raws cov qauv tsim nyog rau cov khoom noj qib plastics hauv tsev thiab txawv teb chaws;
(4) Cov txheej txheem ntau lawm: Yuav tsis muaj qhov paug pov tseg hauv cov txheej txheem ntau lawm, yuav tsis ua rau cov pa phem tshiab rau ib puag ncig;
(5) Tus nqi: Cov hmoov txhuv nplej siab ua raws li cov khoom siv roj hmab yas thiab cov khoom lag luam yog tib yam li cov khoom siv roj av zoo li qub. Tus nqi ntawm cov hmoov txhuv nplej siab biodegradable cov ntaub ntawv thiab cov khoom lag luam yog kwv yees ob zaug ntawm cov pa roj av ib txwm.
peb muab patented puv biodegradable zaj duab xis thiab lub hnab PVA, tag nrho cov khoom yog tsim los ntawm cov cuab yeej siv casting, Nws txawv ntawm cov tshuab moulding khoom, tag nrho cov tshuab moulding khoom tsis puv biodegradable. Peb tuaj yeem tsim pva zaj duab xis thiab hnab txhua lub pob tshab thiab ntau yam xim.
peb kuj muab cov khoom siv organic puv biodegradable zaj duab xis thiab hnab nrog cov khoom muaj ntawv pov thawj muaj txheej txheem thiab cov txheej txheem. peb cov pob kws raws li cov hmoov txhuv nplej siab yas thiab xyoob raws cov hmoov txhuv nplej siab yas tau Vincotte OK Biobased daim ntawv pov thawj.
Xav paub ntau ntxiv PVA zaj duab xis thiab hnab khoom thov mus saib peb:
http://www.joyful-printing.net/pva-bag/
http://www.joyful-printing.com/pva-bag/ eng nkaus xwb