Banyere Cellulose
Cellulose bụ polysaccharide macromolecular nke mejupụtara glucose. Ọ dị n'ọtụtụ buru ibu na osisi ndụ ndụ na ihe ndị dị n'oké osimiri. Ọ bụ ihe kacha ekesa na nnukwu ihe okike polymer n'okike. Ọ nwere ezigbo bioacompatibility, mmeghari ohuru na Biodegradable na uru ndị ọzọ. Site na photosynthesis, osisi nwere ike ịmepụta ọtụtụ narị nde tọn cellulose kwa afọ.
Atụmanya Ngwa Cellulose
Omenala cellulose ejedebeghị n'obosara ya n'ihi na anụ ahụ na kemịkal Njirimara, ebe eke polymer material cellulose nwere dị iche iche arụ ọrụ Njirimara mgbe nhazi na mgbanwe, nke nwere ike izute dị iche iche mkpa nke dị iche iche ọrụ. Ojiji eji arụ ọrụ nke cellulose abụrụla usoro mmepe eke na ebe nyocha nke ihe polymer.
A na-emepụta ihe ndị na-emepụta cellulose site na esterification ma ọ bụ etherification nke otu hydroxyl na cellulose polymers na reagents. Dabere na njirimara nhazi nke ngwaahịa mmeghachi omume, enwere ike kewaa ihe ndị na-emepụta cellulose n'ime ụzọ atọ: cellulose ethers, cellulose esters, na cellulose ether esters.
1. Cellulose ether
Cellulose ether bụ okwu n'ozuzu maka usoro nke cellulose sitere na mmeghachi omume nke cellulose alkali na etherifying n'okpuru ọnọdụ ụfọdụ. Cellulose ether bụ ụdị mkpụrụ ndụ cellulose nwere ụdị dị iche iche, mpaghara ngwa ngwa, nnukwu mmepụta mmepụta na uru nyocha dị elu. Ngwa ya gụnyere ọtụtụ mpaghara dị ka ụlọ ọrụ, ọrụ ugbo, ụlọ ọrụ kemịkalụ kwa ụbọchị, nchekwa gburugburu ebe obibi, ikuku ikuku na nchekwa mba.
Ethers cellulose nke a na-eji eme ihe n'ezie bụ: methyl cellulose, carboxymethyl cellulose, ethyl cellulose, hydroxyethyl cellulose, cyanoethyl cellulose, hydroxypropyl cellulose na hydroxypropyl methylcellulose Cellulose wdg.
2. Cellulose ester
A na-eji esters cellulose eme ihe n'ọtụtụ ebe na mpaghara nchekwa mba, ụlọ ọrụ kemịkalụ, bayoloji, ọgwụ, ihe owuwu na ọbụna ikuku.
Esters cellulose nke a na-eji eme ihe n'ezie bụ: cellulose nitrate, cellulose acetate, cellulose acetate butyrate na cellulose xanthate.
3. Cellulose ether ester
Cellulose ether esters bụ ester-ether agwakọta amịpụtara.
Oghere ngwa:
1. Ogige ọgwụ
A na-eji cellulose ether na ester eme ihe n'ọtụtụ ebe na nkà mmụta ọgwụ maka ịgbatị, ihe ụtọ, ntọhapụ na-adịgide adịgide, ntọhapụ a na-achịkwa, imepụta ihe nkiri na ebumnuche ndị ọzọ.
2. Ugbo mkpuchi
Cellulose esters na-arụ ọrụ dị oke mkpa na ngwa mkpuchi.Cellulose estersa na-eji ihe eji emepụta ihe, resins gbanwetụrụ ma ọ bụ ihe nkiri ihe nkiri iji nye mkpuchi nwere ọtụtụ ihe magburu onwe ya.
3. ubi teknụzụ membrane
Cellulose na ihe mpụta nwere uru nke nnukwu mmepụta, ịrụ ọrụ kwụsiri ike, yana nrụgharịgharị. Site na nchikota nke oyibo-site-layer, usoro ngbanwe nke oge, teknụzụ electrospinning na ụzọ ndị ọzọ, enwere ike ịkwadebe ihe akpụkpọ anụ nwere arụmọrụ nkewa dị mma. N'ọhịa nke teknụzụ akpụkpọ anụ ejiri ọtụtụ ebe.
4. Ngalaba ihe owuwu
Cellulose ethers nwere nnukwu ike reversible jel na ya mere ọ bara uru dị ka ihe mgbakwunye na ihe owuwu ihe, dị ka ihe mgbakwunye tile nke simenti dabeere.
5. Aerospace, ụgbọ ala ike ọhụrụ na ngwaọrụ eletrik dị elu
Enwere ike iji ihe optoelectronic arụ ọrụ dabere na cellulose na mbara igwe, ụgbọ ala ume ọhụrụ na ngwaọrụ eletrọnịkị dị elu.
Oge nzipu: Eprel-25-2024