Codsiyada kala duwan ee cellulose iyo asalkiisa

Cellulose waa polysaccharide macromolecular oo ka kooban gulukoos, taas oo ka jirta tiro badan dhirta cagaaran iyo noolaha badda. Waa maadada polymer-ka dabiiciga ah ee ugu ballaadhan iyo tan ugu weyn ee dabiiciga ah. Waxay leedahay bioocompatibility wanaagsan, la cusboonaysiin karo iyo Biodegradable iyo faa'iidooyin kale. Iyada oo loo marayo photosynthesis, dhirtu waxay soo saari kartaa boqollaal milyan oo tan oo cellulose ah sannad kasta.

Rajada Codsiga Cellulose

Cellulose-dhaqameedka ayaa si ballaaran loo isticmaalay sababtoo ah sifooyinka jidheed iyo kiimikaad ee gaarka ah, halka walxaha polymer-ka dabiiciga ah ee cellulose uu leeyahay sifooyin shaqo oo kala duwan ka dib habeynta iyo wax ka beddelka, kaas oo buuxin kara baahiyaha kala duwan ee warshadaha kala duwan. Ka faa'iidaysiga waxtarka leh ee alaabta shaqada ee cellulose waxay noqotay isbeddello horumarineed oo dabiici ah iyo meelo cilmi baaris ah oo ah alaabta polymerka.

Soosaarayaasha cellulose waxaa lagu soo saaraa esterification ama etherification ee kooxaha hydroxyl ee polymers cellulose leh reagents kiimikaad. Marka loo eego sifooyinka qaab dhismeedka alaabada falcelinta, derivatives cellulose waxaa loo qaybin karaa saddex qaybood: ethers cellulose, esters cellulose, iyo esters cellulose.

1. Eter cellulose

Ether Cellulose waa erey guud oo taxane ah oo ka soo jeeda cellulose oo ay sameeyeen falcelinta cellulose alkali iyo wakiilka etherifying ee xaaladaha qaarkood. Cellulose ether waa nooc ka mid ah soo saarista cellulose oo leh noocyo kala duwan, beero codsi oo ballaaran, mugga wax soo saarka iyo qiimaha cilmi-baarista sare. Codsigeeda waxay ku lug leedahay qaybo badan sida warshadaha, beeraha, warshadaha kiimikada maalinlaha ah, ilaalinta deegaanka, hawada hawada iyo difaaca qaranka.

Ether-ka cellulose-ka ee sida dhabta ah ganacsi ahaan loo isticmaalo waa: methyl cellulose, carboxymethyl cellulose, ethyl cellulose, hydroxyethyl cellulose, cyanoethyl cellulose, hydroxypropyl cellulose iyo hydroxypropyl methylcellulose Cellulose iwm.

2. Esters Cellulose

Esters Cellulose waxaa si weyn loogu isticmaalaa dhinacyada difaaca qaranka, warshadaha kiimikada, bayoolajiga, daawada, dhismaha iyo xataa hawada.

Esters cellulose ee dhab ahaantii ganacsi ahaan loo isticmaalo waa: cellulose nitrate, cellulose acetate, cellulose acetate butyrate iyo cellulose xanthate.
3. Ester cellulose

Ester cellulose ether waa ester-ether derivatives isku dhafan.

Goobta codsiga

1. Beerta dawooyinka

Ether-ka Cellulose iyo ester derivatives ayaa si weyn loogu isticmaalaa daawada dhumucda, excipient, sii daayo joogtada ah, sii daayo la xakameeyey, samaynta filimada iyo ujeedooyin kale.

2. Garoonka dahaarka

Esters Cellulose waxay door muhiim ah ka ciyaaraan codsiyada daahan. Esters Cellulose waxaa loo isticmaalaa xirmooyinka, resins-ka la beddelay ama walxaha filimka hore si loo bixiyo dahaarka leh sifooyin aad u fiican.

3. Membrane technology beerta

Cellulose iyo walxaha laga soo saaro waxay leeyihiin faa'iidooyinka wax soo saarka ballaaran, waxqabadka deggan, iyo dib-u-warshadaynta. Iyada oo loo marayo lakab-lakab-lakab is-urursi, habka leexinta wajiga, tignoolajiyada elektiroonigga ah iyo habab kale, qalabka xuubabka leh ee waxqabadka kala soocida aad u fiican ayaa la diyaarin karaa. Dhinaca farsamada xuubabka oo si weyn loo isticmaalo.

4. Goobta dhismaha

Ether-yada Cellulose waxay leeyihiin xoog heerkul sare ah oo dib loo rogi karo sidaas darteedna waxay faa'iido u leeyihiin waxyaabaha lagu daro qaybaha dhismaha, sida waxyaabaha lagu daro dhoobada sibidhka ku salaysan.

5. Aerospace, baabuurta tamarta cusub iyo qalab elektaroonik ah oo heer sare ah

Qalabka optoelectronic functional-based cellulose waxaa loo isticmaali karaa hawada hawada, baabuurta tamarta cusub iyo qalabka elektarooniga ah ee dhamaadka-sare.

6. Beeraha kale

Dhibaatooyinka iyo xalalka Codsiga Cellulose

Waqtigan xaadirka ah, cellulose weli waxay leedahay cillado dabiici ah. Sababtoo ah sifooyinka qaab-dhismeedkeeda isku-darka ah, cellulose lama dhalaali karo oo way adagtahay in lagu milmo dareeraha caadiga ah, taas oo si weyn u xaddidaysa horumarinta iyo isticmaalka alaabta cellulose. Sida milanka liidata ee dareerayaasha caadiga ah, la'aanta thermoplasticity, hydrophilicity sare iyo la'aanta guryaha bakteeriyada.

Sidaa darteed, naqshadeynta iyo dhismaha alaabta cusub ee cellulose-ka ayaa saldhig u ah ka faa'iidaysiga hufan ee cellulose, iyo horumarinta tignoolajiyada kala dirida cellulose nadiif ah oo hufan waa hab muhiim ah iyo dammaanad qaadka isticmaalka hufan ee cellulose.