Txhua yam koj xav paub txog ntim cellulose
Yog tias koj tau saib rau hauv ib puag ncig ntim khoom, muaj feem ntau koj tau hnov cov cellulose, tseem hu ua xov tooj cua.
Cellophane yog cov khoom ntshiab, crinkly uas tau nyob ib puag ncig txij thaum 1900s. Tab sis, nws yuav ua rau koj xav tsis thoob rau koj kom paub tias cellophane, lossis cellulose zaj duab xis ntim, yog cog-raws li, compstable, thiab cov khoom tiag tiag ".
Lub cellulose ntim tau dab tsi?
Tshawb pom xyoo 1833, cellulose yog ib qho khoom uas nyob sab hauv phab ntsa phab ntsa ntawm cov nroj tsuag. Nws yog tsim ntawm cov saw ntev ntawm cov hmoov av, ua rau nws polysaccharide (lub sijhawm muaj kev ntseeg rau cov carbohydrate).
Thaum ob peb txoj saw hlau ntawm hydrogen ua ke ua ke, lawv sau rau qee yam hu ua microfibrils, uas yog incredasible thiab tawv. Qhov sib zog ntawm cov microfibrils ua rau cov cellulose ib qho zoo heev molecule siv hauv bioplastic ntau lawm.
Ntxiv mus, cellulose yog cov biopolymer tshaj plaws hauv ntiaj teb, thiab nws cov lus muaj kev cuam tshuam ib puag ncig ib puag ncig. Txawm tias muaj ob peb hom sib txawv ntawm cellulose. Cellulose zaub mov ntim feem ntau cellophane, ib qho tseeb, nyias, biodegradable yas zoo li cov khoom siv.
Yuav ua li cas cellulose zaj duab xis ntim khoom tsim?
Cellophane yog tsim los ntawm lub cellulose tshwm sim los ntawm paj rwb, ntoo, hemp, lossis lwm yam kev tsim txom cov khoom ntuj. Nws pib raws li cov pulp dawb yaj, uas yog 92% -98% cellulose. Tom qab ntawd, lub cellulose nyoos pulp mus los ntawm plaub kauj ruam hauv qab no kom hloov pauv mus rau hauv cellophane.
1. Lub cellulose yog yaj nyob rau hauv ib tug alkali (qhov yooj yim, ionic ntsev ntawm alkaline hlau tshuaj) thiab tom qab ntawd hnub nyoog tau ob peb hnub. Qhov txheej txheem yaj no yog hu ua kev lom zem.
2. Cov pa roj carbon disulfide tau thov rau lub miccerized pulp los tsim kev daws teeb meem hu ua cellulose xalthate, lossis viscose.
3. Txoj kev daws teeb meem no tau ntxiv rau kev sib tov ntawm sodium sulfate thiab dilute sulfuric acid. Qhov no hloov txoj kev daws teeb meem rov qab mus rau hauv cellulose.
4. Tom qab ntawd, lub cellulose zaj duab xis mus los ntawm peb kev ntxuav ntxiv. Ua ntej kom tshem tawm cov leej faj, tom qab ntawd los ua kom dawb cov zaj duab xis, thiab thaum kawg ntxiv glycerin for durabilin.
Qhov kawg tshwm sim yog cellophane, uas yog siv nyob rau hauv cov lag luam ntim khoom noj khoom haus ntim khoom, feem ntau los tsim biodegradable cellophane hnab lossis "hnab cello".
Cov txiaj ntsig ntawm cov khoom lag luam cellule cellule yog dab tsi?
Thaum cov txheej txheem ntawm kev tsim cov ntim cellulose yog qhov nyuaj, cov txiaj ntsig yog qhov tseeb.
Cov neeg Asmeskas siv 100 billion hnab yas txhua xyoo, xav tau 12 txhiab tus roj ntawm cov roj txhua xyoo. Tshaj li ntawd, 100,000 cov tsiaj cog qoob loo raug tua ntawm cov hnab yas txhua xyoo. Nws yuav siv sijhawm ntau tshaj 20 xyoo rau cov roj av roj hmab cov hnab yas los ua kom tsis pom zoo hauv dej hiav txwv. Thaum lawv ua, lawv tsim cov micro-plastics uas txuas ntxiv rau cov khoom noj khoom haus.
Raws li peb lub zej zog muaj ntau ib puag ncig, peb txuas ntxiv tshawb rau ECO-phooj ywg, biodegradable xaiv mus rau roj av-based plastics.
Ib cag ntawm kev ua lwm txoj yas, cellulose zaj duab xis ntim qhia txog ntau cov txiaj ntsig ib puag ncig:
Siv tau & Bio-raws li
Vim tias cellophane yog tsim los ntawm cellulose tau sau los ntawm cov nroj tsuag, nws yog cov khoom siv kom ruaj khov los ntawm cov khoom siv xyoob ntoo, raws li cov khoom siv tshiab dua.
Biodegradable
Cellulose zaj duab xis ntim yog biodegradable. Kev ntsuam xyuas tau qhia tias cellulose ntim ntim cov ntim biodegrades hauv 28-60 hnub yog tias cov khoom lag luam tsis ruaj thiab 80-120 hnub yog muaj. Nws tseem nyob hauv dej hauv 10 hnub yog tias nws tsis ruaj khov thiab ib puag ncig ib hlis yog tias nws tau coated.
Lus teb
Cellophane kuj yog nws muaj kev nyab xeeb muab tso rau hauv koj cov nplooj lwg hauv tsev, thiab nws tsis tas yuav ua lag luam rau kev sib sau ua ke.
Cov txiaj ntsig ntim ntim khoom noj:
Tsawg tus nqi
Kev ntim khoom ntim tau nyob ib puag ncig txij xyoo 1912, thiab nws yog kev ua haujlwm ntawm cov ntawv kev lag luam. Piv nrog lwm cov eco-phooj ywg yas hloov, cellophane muaj tus nqi qis.
Yo noo-resistant
Biodegradable cellophane hnab tiv thaiv ya raws thiab dej vapor, ua rau lawv xaiv zoo tshaj plaws rau kev tso tawm thiab khaws cov khoom noj.
Roj-Resistant
Lawv ib txwm tiv taus cov roj thiab cov rog, hnab corpophane yog qhov zoo rau cov khoom ci, cov txiv ntoo, thiab lwm yam zaub mov roj.
Sov Txuas
Cellophane yog cua sov sealable. Nrog rau cov cuab yeej yog, koj tuaj yeem muab cov khoom siv kub sai thiab yooj yim thiab tiv thaiv cov khoom noj pub zaub mov khaws cia hauv cov hnab cellophane.
Lub neej tom ntej ntawm cellulose ntim tau dab tsi?
Lub neej tom ntejCellulose zaj duab xisNtim zoo li ci. Ib daim ntawv qhia txog kev ua lag luam yav tom ntej kev pom zoo tshaj tawm kwv yees ntim cellulose yuav muaj cov lej sib xyaw ntawm 4.9% ntawm 2018 thiab 2028.
Xya caum feem pua ntawm cov kev loj hlob ntawd yuav tsum muaj nyob hauv cov khoom noj thiab dej haus. Biodegradable cellots cellophane ntim zaj duab xis thiab hnab ua qhov siab tshaj plaws xav tau kev loj hlob qeb.
Cellophane thiab zaub mov ntim khoom tsis yog tsuas yog siv cellulose yog siv. Cellulose tau pom zoo los ntawm FDA rau siv hauv:
Cov Khoom Noj Ntxiv
Khoom muag khoom muag cuav
Cov Yeeb Tshuaj Siv
Kev Kho Mob
Cellophane tau pom feem ntau hauv cov zaub mov thiab dej haus kev lag luam, chaw tu tshuaj, kev saib xyuas tus kheej, thiab cov chaw saib xyuas hauv tsev, thiab cov chaw saib xyuas tsev.
Puas yog cellulose ntim cov khoom lag luam muaj cai rau kuv txoj kev lag luam?
Yog tias koj siv lub hnab yas yas rau cov khoom siv, cov khoom muag, thiab lwm yam, ntim celpophane ntim tau yog qhov kev xaiv zoo meej. Ua los ntawm ib tug resin hu ua xwmfleX ™ ua los ntawm cellulose tau muab los ntawm ntoo pulp, peb lub hnab muaj zog, siv lead ua ke.
Peb muab ob txoj kev sib tw ntawm biodegradable cellophane hnab nyob rau hauv ib qho ntau thiab tsawg:
Tiaj Tus Cellophane Hnab
Gusseted cellophane hnab cellophane
Peb tseem muab cov ntawv sib dhos, yog li koj tuaj yeem muab koj lub hnab ntim khoom nrov sai.
Thaum pib pib zoo, peb tau cog lus tseg los muab cov khoom zoo, Eco-tus phooj ywg cellophane hnab thiab cov ntim ntim tshuab raj. Yog tias koj xav paub txog peb lub cellulose zaj duab xis ntim lossis ib qho ntawm peb lwm cov khoom lag luam, thov hu rau peb hnub no
PS Nco ntsoov koj yuav koj lub hnab cello los ntawm cov npe nrov xws li ntim tau zoo. Ntau cov lag luam lag luam "ntsuab" lub hnab cello ua los ntawm polypropylene yas.
Get free sample by williamchan@yitolibrary.com.
Lwm Yam Khoom
Lub Sijhawm Post: Lub Tsib Hlis-28-2022