About Cellulose
Cellulose is macromolecular polysaccharide inoumbwa neglucose. Inowanikwa muhuwandu hukuru mumiti yakasvibirira uye zvipenyu zvegungwa. Ndiyo yakanyanya kuparadzirwa uye yakakura kwazvo yakasikwa polymer zvinhu mune zvakasikwa. Iyo ine yakanaka biocompatibility, inovandudzwa uye Biodegradable uye zvimwe zvakanakira. Kuburikidza nephotosynthesis, zvinomera zvinogona kugadzira mazana emamiriyoni ematani e cellulose gore rega rega.
Cellulose Application Tarisiro
Yechinyakare cellulose yakaganhurira kushandiswa kwayo kwakakura nekuda kwechimiro chayo uye chemakemikari zvimiro, nepo yakasikwa polymer material cellulose ine akasiyana mashandiro ekuita mushure mekugadzirisa nekugadzirisa, ayo anogona kusangana nezvinodiwa zvakasiyana zvemaindasitiri akasiyana. Iko kushanda kwekushandiswa kwe cellulose inoshanda zvinhu zvave zvechisikigo Mafambiro ekuvandudza uye tsvakiridzo hotspots dzepolymer zvinhu.
Cellulose derivatives inogadzirwa ne esterification kana etherification ye hydroxyl mapoka mu cellulose polymers ane makemikari reagents. Zvinoenderana nehunhu hwemagadzirirwo ezvigadzirwa, zvinobuda mu cellulose zvinogona kupatsanurwa muzvikamu zvitatu: cellulose ethers, cellulose esters, uye cellulose ether esters.
1. Cellulose ether
Cellulose ether izwi rinowanzoreva nhevedzano yezvinobva muselulosi zvinoumbwa nekuita kwealkali cellulose uye etherifying agent mune mamwe mamiriro. Cellulose ether imhando ye cellulose inotorwa nemhando dzakasiyana-siyana, yakakura application minda, hombe yekugadzira vhoriyamu uye yakakwirira yekutsvagisa kukosha. Kushandiswa kwaro kunosanganisira minda yakawanda yakadai seindasitiri, kurima, indasitiri yemakemikari yemazuva ese, kuchengetedza kwezvakatipoteredza, aerospace uye kudzivirira kwenyika.
Macellulose ethers anonyanya kushandiswa mukutengesa ndeaya: methyl cellulose, carboxymethyl cellulose, ethyl cellulose, hydroxyethyl cellulose, cyanoethyl cellulose, hydroxypropyl cellulose uye hydroxypropyl methylcellulose Cellulose nezvimwe.
2. Cellulose ester
Cellulose esters inoshandiswa zvakanyanya muminda yekudzivirira yenyika, indasitiri yemakemikari, biology, mushonga, kuvaka uye kunyange aerospace.
Ma cellulose esters anonyanya kushandiswa pakutengeserana ndeaya: cellulose nitrate, cellulose acetate, cellulose acetate butyrate uye cellulose xanthate.
3. Cellulose ether ester
Cellulose ether ester maester-ether akasanganiswa anobva kunze.
Nzvimbo yekushandisa:
1. Pharmaceutical field
Cellulose ether uye ester derivatives inoshandiswa zvakanyanya mumushonga wekukora, excipient, kusunungurwa kwakasimba, kuburitswa kunodzorwa, kugadzira firimu uye zvimwe zvinangwa.
2. Coating munda
Cellulose esters inoita basa rakakosha mukuputira maapplication.Cellulose estersanoshandiswa mumabhainda, akagadziridzwa resin kana pre-firimu zvinhu kuti zvipe machira ane akawanda akanakisa zvivakwa.
3. Membrane tekinoroji munda
Cellulose uye zvinhu zvinobuda zvine zvakanakira kubuda kukuru, kuita kwakagadzikana, uye kudzokorodza. Kuburikidza ne layer-by-layer self-assembly, phase inversion nzira, electrospinning tekinoroji uye dzimwe nzira, membrane zvinhu zvine yakanakisa kupatsanura kuita zvinogona kugadzirwa. Mumunda we membrane tekinoroji inoshandiswa zvakanyanya.
4. Chikamu chekuvaka
Cellulose ethers ine high thermally reversible gel simba uye naizvozvo inobatsira sekuwedzera muzvikamu zvekuvaka, zvakadai sesimende-based tile adhesive additives.
5. Aerospace, motokari itsva dzemagetsi uye zvigadzirwa zvemagetsi zvepamusoro
Cellulose-based functional optoelectronic zvinhu zvinogona kushandiswa mune aerospace, itsva simba mota uye yepamusoro-yekupedzisira zvigadzirwa zvemagetsi.
Nguva yekutumira: Kubvumbi-25-2024