Cellulose yog cov orgiquitous organic compound pom kev ntau nyob rau hauv cov xwm txheej, ua ib lub luag haujlwm tseem ceeb hauv cov qauv thiab kev muaj kab mob ecosystem. Nws cov khoom tshwj xeeb thiab cov veralility tau ua rau ntau cov ntawv thov hla kev lag luam, ua rau muaj ib qho tseem ceeb biopolymers tshaj plaws.
1. Cov ntaub ntawv ntawm cellulose:
Cellulose yog feem ntau yog muab los ntawm tsob ntoo cell phab ntsa, ua haujlwm raws li cov txheej txheem sib xyaw ua ke hauv cov microfibrils. Nws muaj nyob rau hauv lub xovtooj ntawm tes ntawm ntau cov ntaub so ntswg, suav nrog cov ntoo, paj rwb, fluax, thiab lwm yam. Cov peev txheej sib txawv hauv cov ntsiab lus cellulose thiab cov koom haum qauv, cuam tshuam lawv cov kev haum rau cov ntawv thov sib txawv.
Ntoo: Ntoo yog ib qho ntawm cov peev txheej tshaj plaws ntawm cellulose, nrog ntoo xws li ntoo thuv, ntoo tawg, thiab spruce uas muaj cov nyiaj tseem ceeb ntawm no biopolymer. Nws pab ua thawj txheej txheem sib xyaw ua ke nyob rau hauv cov phab ntsa ntawm tes ntawm cov ntaub so ntswg ntawm ntoo, muab lub zog thiab nruj rau cov nroj tsuag.
Paj rwb: paj rwb fibers yog tsim yuav luag txhua yam ntawm cellulose, ua rau lawv muaj txiaj ntsig raw khoom rau textile ntau lawm. Qhov ntev, fibrous strands ntawm cellulose pab txhawb nqa lub zog, thiab nqus ntawm cov ntaub qhwv paj rwb, ua kom zoo tshaj plaws rau cov khaub ncaws hnav thiab tsev neeg.
Hemp thiab Flax: Hemp thiab Flax Fibers tseem muaj cov peev txheej ntawm cellulose thiab tau siv keeb kwm rau Textile ntau lawm. Cov ntsiab lus ntuj no muaj qhov ruaj khov, noo noo-wicking cov khoom, thiab ib puag ncig kev ruaj khov, ua rau lawv nrov zuj zus hauv eco-tus phooj ywg textiles.
Lwm yam nroj tshuag: Dhau li ntawm cov chaw cog qoob loo, cellulose tuaj yeem muab rho tawm los ntawm ntau lwm cov nroj tsuag, baglasse, thiab cov kab ke ua liaj ua liaj ua teb. Cov kev hloov pauv no pab txhawb rau kev ua kom ruaj khov ntawm cov khoom siv ntawm cellulose thaum txo cov kev vam khom rau ntawm cov ntoo tsoos tsho.
2. Muab cov cellulose:
Cellulose cov khoom pov thawj cov khoom siv uas ua rau nws cov ntawv thov dav dav:
Biodegradity: cellulose yog biodegradable, lub ntsiab lus nws tuaj yeem tawg los ntawm cov kab mob me xws li cov pa roj carbon dioxide thiab dej. Cov cuab yeej no ua rau cov ntaub ntawv cellulose-raws li ib puag ncig cov phooj ywg, tshwj xeeb tshaj yog hauv cov ntawv thov uas muaj kev cuam tshuam thiab khib nyiab yog kev txhawj xeeb.
Hydrophilicity: cellulose muaj ib tug muaj ib qho kev muaj peev xwm rau cov roj av molecules vim muaj cov pawg hydroxyl hauv nws cov qauv molecular. Qhov no hydrophilic Xwm ua rau cov ntaub ntawv ntawm cellulose los nqus thiab khaws cia rau cov ntawv thov xws li cov khoom hnav, cov khoom hnav, thiab cov khoom lag luam tu.
Neeg kho tshuab zog: cellulose fibulose muaj cov tshuab siv zog zoo heev, muab cov khoom siv ruaj khov thiab muaj peev xwm ua tau los ntawm lawv. Cov cuab yeej no tshwj xeeb tshaj nyob rau hauv cov ntawv thov kev ncaj ncees, xws li hauv textiles, kev sib xyaw, thiab cov khoom lag luam.
Txuas txuas dua tshiab thiab ntev li cas: ua ib qho kev lom zem ntawm kev cog qoob loo los ntawm kev cog cov khoom, cellulose yog txuas dua tshiab thiab muaj kev nyab xeeb. Nws cov kev tsim khoom tsis cia siab rau cov khoom siv roj fossil finite thiab tuaj yeem pab txhawb cov carbon ua ntu zus thaum muaj cov hav zoov muaj npe thiab kev ua liaj ua teb.
3.Diverse cov ntawv thov ntawm cellulose:
Cellulose pom muaj kev siv ntau thoob plaws ntau yam lag luam, tiv nqi rau nws cov khoom ntiag tug thiab versatility:
Ntawv thiab ntim khoom: tej zaum qhov kev thov muaj txiaj ntsig zoo tshaj plaws ntawm cellulose yog hauv kev tsim cov ntawv thiab duab los qhia. Cellulose fibubs yog thawj cov khoom siv raw hauv papermaking, muab cov qauv txheej txheem qauv thiab cov yam ntxwv saum toj no tsim nyog sau ntawv, luam ntawv, thiab ntim cov ntawv thov. Tsis tas li ntawd, cov cellulose-raws cov ntaub ntawv ntim khoom muaj eco-phooj ywg xaiv rau cov khoom yas ntim khoom, ua rau muaj kev ruaj khov.
Cov ntawv nyeem thiab cov khaub ncaws: cellulose fibers los ntawm paj rwb, hemp, flax, thiab lwm yam khoom cog qoob loo rau cov ntaub, cov ntawv thov hauv tsev, thiab cov ntawv thov kev lag luam. Cotton, in particular, is a widely used cellulose-based fiber in the textile industry due to its softness, breathability, and versatility. Kev nrhav hauv kev ua cov txheej txheem ntawm kev txhim kho ntawm cellulose-raws li Lyocell thiab modal, uas muaj cov txiaj ntsig ib puag ncig thiab cov txiaj ntsig ib puag ncig.
Biomedical Materials: Cellulose-based materials have applications in the biomedical field, including wound dressings, tissue engineering scaffolds, drug delivery systems, and medical implants. Lub biocompatibility thiab biodegradability ntawm cellulose ua nws haum rau cov ntawv thov, uas muaj kev cuam tshuam nrog kev siv roj ntsha yog qhov tseem ceeb rau kev ua tau zoo thiab kev nyab xeeb.
Cov khoom lag luam thiab cov khoom lag luam hauv khw muag khoom noj xws li cov tshuaj tua kab mob cellulis, thiab cov neeg ua yeeb yam ntawm cellulistrose) Cov cellulose-based ntxiv txhim kho kev ntxhib los mos, thiab palatability ntawm cov khoom noj khoom noj thaum ua kom muaj kev phiv tshuaj noj mov zoo hauv chaw muag tshuaj.
Txuas txuas ntxiv dag zog thiab roj ntsha: cellulose-nplua nuj biomass pab raws li cov pub mis ntxiv rau cov txheej txheem biomass, fermentation, thiab enzymatic hydrolyly. Cellulosic ethothol, muab tau los ntawm cellulose ib qho tsis zoo rau cov pob txha roj thiab pab txo cov roj av roj paug pa.
Composite: cellulose fibers tau sib xyaw rau hauv cov ntaub ntawv sib xyaw los txhim kho lub zog xws li lub zog xws li lub zog, tuab, thiab kev tsis kam. Cov cellulose-bored composites nrhiav kev siv hauv cov khoom siv hauv cov khoom siv, rooj tog zaum thiab kev sib tw ua lag luam, kev xaiv hauv eco-phooj ywg rau cov khoom siv.
Cellulose, raws li kev lom neeg biopolymer muaj ntau nyob rau hauv tsob nroj cell phab ntsa, muaj cov khoom muaj txiaj ntsig thiab cov kev thov ntau yam thoob plaws kev lag luam. Los ntawm papermaking thiab textiles mus rau biomedical cov ntaub ntawv thiab lub zog txuas dua tshiab ua rau muaj kev txhim kho kom ruaj khov thiab tsim kho tshiab hauv ntau thaj teb. Kev Tshawb Nrhiav Kev Tshawb Fawb Txuas ntxiv hauv cov lus cog tseg cellulose thiab kev daws cov ntawv thov thiab daws cov kev pab cuam hauv ntiaj teb no ntsig txog kev txuag cov peev txheej thiab ib puag ncig kev ruaj ntseg. Raws li tib neeg txuas ntxiv mus rau qhov ua ntej ua ntej ua ntej thiab eco-nco ntsoov, cov ntaub ntawv ntawm cellulose tau ua si rau qhov tseem ceeb tshaj plaws hauv kev ua kom zoo dua qub thiab yav tom ntej muaj kev nyob zoo.
Lub Sijhawm Post: Mar-06-2024