Ku saabsan Cellulose
Cellulose waa polysaccharide macromolecular ah oo ka kooban gulukoos. Waxay ku jirtaa tiro badan dhirta cagaaran iyo noolaha badda. Waa walaxda ugu baahsan uguna weyn ee dabiiciga ah ee polymer-ka. Waxay leedahay iswaafajin wanaagsan oo bayooloji ah, la cusboonaysiin karo iyo mid baaba'san iyo faa'iidooyin kale. Iyada oo loo marayo sawir-qaadista, dhirtu waxay samayn kartaa boqolaal milyan oo tan oo cellulose ah sannad kasta.
Rajooyinka Codsiga Cellulose
Cellulose-ka dhaqameedku wuxuu xaddiday isticmaalkiisa ballaaran sababtoo ah sifooyinka jireed iyo kiimikada, halka cellulose-ka dabiiciga ah ee polymer-ka uu leeyahay sifooyin shaqo oo kala duwan ka dib marka la farsameeyo oo wax laga beddelo, taas oo dabooli karta baahiyaha kala duwan ee warshadaha kala duwan. Isticmaalka shaqeynta ee agabka shaqeynaya ee cellulose wuxuu noqday isbeddello horumarineed oo dabiici ah iyo cilmi-baaris meelaha ugu muhiimsan ee agabka polymer-ka.
Waxyaabaha ka soo baxa unugyada waxaa lagu soo saaraa esterification ama etherification ee kooxaha hydroxyl ee ku jira polymers-ka cellulose oo leh reagents kiimiko ah. Sida laga soo xigtay astaamaha qaab-dhismeedka ee alaabada falgalka, waxyaabaha ka soo baxa unugyada waxaa loo qaybin karaa saddex qaybood: ethers cellulose, esters cellulose, iyo esters ether cellulose.
1. Cellulose ether
Cellulose ether waa erey guud oo loogu talagalay taxane ah noocyada kala duwan ee cellulose oo ay sameeyeen falgalka alkali cellulose iyo wakiilka etherifying xaalado gaar ah. Cellulose ether waa nooc ka mid ah noocyada kala duwan ee cellulose oo leh noocyo kala duwan, goobo ballaaran oo codsi ah, mugga wax soo saar weyn iyo qiime cilmi baaris oo sarreeya. Adeegsigeedu wuxuu ku lug leeyahay dhinacyo badan sida warshadaha, beeraha, warshadaha kiimikada maalinlaha ah, ilaalinta deegaanka, hawada sare iyo difaaca qaranka.
Ether-yada cellulose ee dhab ahaantii loo isticmaalo ganacsiga waa: methyl cellulose, carboxymethyl cellulose, ethyl cellulose, hydroxyethyl cellulose, cyanoethyl cellulose, hydroxypropyl cellulose iyo hydroxypropyl methylcellulose Cellulose iwm.
2. Cellulose ester
Esters-ka Cellulose-ka ayaa si weyn loogu isticmaalaa difaaca qaranka, warshadaha kiimikada, bayoolajiga, daawada, dhismaha iyo xitaa hawada sare.
Esters-ka cellulose ee dhab ahaantii loo isticmaalo ganacsiga waa: cellulose nitrate, cellulose acetate, cellulose acetate butyrate iyo cellulose xanthate.
3. Cellulose ether ester
Cellulose ether ether waa isku-darka isku-dhafka ah ee ester-ether.
Goobta Codsiga:
1. Qaybta daawada
Waxyaabaha laga helo Cellulose ether iyo ester-ka waxaa si weyn loogu isticmaalaa daawada dhumucda, ka-hortagga, sii deynta joogtada ah, sii deynta la xakameeyey, sameynta filimada iyo ujeedooyin kale.
2. Beerta dahaarka
Cellulose esters waxay door muhiim ah ka ciyaaraan codsiyada dahaarka.Ester-yada Cellulosewaxaa loo isticmaalaa xidhmooyinka, resins-ka wax laga beddelay ama agabka filimka kahor si loo siiyo dahaadh leh sifooyin badan oo aad u fiican.
3. Goobta tignoolajiyada xuubka
Qalabka Cellulose iyo kuwa laga soo xigtay waxay leeyihiin faa'iidooyinka wax soo saar ballaaran, waxqabad deggan, iyo dib-u-warshadayn. Iyada oo loo marayo is-ururinta lakab-lakab, habka rogrogidda wejiga, tiknoolajiyada wareegga elektiroonigga ah iyo habab kale, walxaha xuubka leh waxqabadka kala-soocidda ee aadka u fiican ayaa la diyaarin karaa. Dhinaca tignoolajiyada xuubka si ballaaran ayaa loo isticmaalaa.
4. Qaybta dhismaha
Ether-yada Cellulose waxay leeyihiin xoog jel oo heerkulkiisu sarreeyo oo la beddeli karo sidaas darteedna waxay faa'iido u leeyihiin inay ku daraan qaybaha dhismaha, sida waxyaabaha lagu daro dhejiska ee ku salaysan sibidhka.
5. Hawada Sare, gawaarida tamarta cusub iyo aaladaha elektaroonigga ah ee heerka sare ah
Alaabada optoelectronic-ka ee ku salaysan cellulose waxaa loo isticmaali karaa hawada sare, gawaarida tamarta cusub iyo aaladaha elektaroonigga ah ee heerka sare ah.
Waqtiga boostada: Abriil-25-2024