Ngwa dị iche iche nke cellulose na mmepụta ya

Cellulose bụ polysaccharide macromolecular nke mejupụtara glucose, nke dị n'ụba na osisi ndụ ndụ na ihe ndị dị ndụ mmiri. 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

A na-eji cellulose ọdịnala eme ihe n'ọtụtụ ebe n'ihi njirimara anụ ahụ na nke kemịkal, ebe polymer ihe onwunwe cellulose nwere ihe dị iche iche na-arụ ọrụ mgbe nhazi na mgbanwe, nke nwere ike izute mkpa dị iche iche nke ụlọ ọrụ dị iche iche. 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 esters

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. Ester cellulose

Cellulose ether esters bụ ester-ether agwakọta amịpụtara.

Mpaghara 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. A na-eji esters cellulose eme ihe na ihe nkedo, resins gbanwetụrụ ma ọ bụ ihe nkiri ihe nkiri iji nye mkpuchi nwere ọtụtụ ihe mara mma.

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. Ogige 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.

6. Ogige ndị ọzọ

Nsogbu na Ngwọta na Ngwa Cellulose

Ka ọ dị ugbu a, cellulose ka nwere ụfọdụ adịghị ike. N'ihi njirimara nke usoro nchịkọta ya, cellulose enweghị ike ịgbaze ma sie ike igbari na ihe mgbaze ndị a na-emekarị, nke na-egbochi oke mmepe na iji ihe cellulose eme ihe. Dị ka solubility na-adịghị mma na ihe mgbaze nkịtị, enweghị thermoplasticity, nnukwu hydrophilicity na enweghị ihe ndị na-egbu egbu.

Ya mere, imewe na iwu ihe ọhụrụ sitere na cellulose bụ ihe ndabere maka iji cellulose rụọ ọrụ nke ọma, na mmepe nke teknụzụ mgbasa cellulose dị ọcha ma dị mma bụ ụzọ dị mkpa na nkwa maka iji cellulose rụọ ọrụ nke ọma.