Habka xajinta ee ethers cellulose waxay ku lug leedahay dhowr tillaabo oo laga soo saarayo cellulose alaabta ceeriin ka dibna loo beddelo ethers cellulose.Ether-ka Cellulose waa isku-dhisyo kala duwan oo leh codsiyo laga helo warshado kala duwan, oo ay ku jiraan dawooyinka, cuntada, dunta iyo dhismaha.Geedi socodka tubbada ayaa muhiim u ah helitaanka cellulose tayo sare leh, alaabta ceeriin ee soo saarista ethers cellulose.Kuwa soo socda waa sharraxaad faahfaahsan oo ku saabsan habka pulping ether cellulose:
1. Xulashada alaabta ceeriin:
Geedi socodka garaacista wuxuu ku bilaabmaa xulashada alaabta ceeriin ee ay ku jiraan cellulose.Ilaha caadiga ah waxaa ka mid ah alwaax, suuf, iyo fiilooyinka dhirta kale.Doorashada alaabta ceeriin waxay ku xiran tahay arrimo ay ka mid yihiin helitaanka ether cellulose, qiimaha iyo hantida la rabo.
2. Habka samaynta saxarka:
Waxaa jira habab badan oo pulping cellulose, inta badan ay ku jiraan pulping kiimikaad iyo pulping farsamada.
3. Duubista Kiimikada:
Burburinta Kraft: Waxay ku lug leedahay daawaynta jajabyada alwaaxyada isku dar ah sodium hydroxide iyo sodium sulfide.Habkani wuxuu milaanayaa lignin, isaga oo ka tagaya fiilooyinka cellulosic.
Sulfite pulping: Isticmaalka sulfurous acid ama bisulfite si loo burburiyo lignin ku jira kaydka quudinta.
Duubista dareeraha dabiiciga ah: Isticmaalka dareerayaasha organic sida ethanol ama methanol si loo milo lignin loona kala saaro fiilooyinka cellulose.
4. Mashiinka garaaca:
Duubista alwaax-dhul-dhagaxa: Waxay ku lug leedahay shiididda alwaax dhexdooda dhagxaanta si farsamaysan loo kala saaro fiilooyinka.
Qalabaynta Farsamada Sifeeyaha: Waxay isticmaashaa xoog makaanik ah si uu u kala saaro fiilooyinka isagoo sifeynaya jajabyada alwaaxyada.
5. Beddelista:
Ka dib marka la garaaco, cellulose waxa ay maraysaa habka biliijka si looga saaro wasakhda iyo midabka.Chlorine, koloriin dioxide, hydrogen peroxide ama oksijiin ayaa la isticmaali karaa inta lagu jiro marxaladda biliijka.
5. Wax ka beddelka Cellulose:
Nadiifinta ka dib, cellulose waa la beddelaa si loo soo saaro ethers cellulose.Hababka caadiga ah waxaa ka mid ah etherification, esterification iyo falcelinta kiimikada kale si loo beddelo sifooyinka jirka iyo kiimikaad ee cellulose.
6. Geedi socodka biyo-mareenka:
Alkalization: Ku daweynta cellulose alkali (badanaa sodium hydroxide) si loo soo saaro alkali cellulose.
Ku darida wakiilada etherifying: Alkaline cellulose waxa ay la falgashaa wakiilada soo saara (sida alkyl halides ama alkylene oxides) si ay u soo bandhigto kooxaha ether qaabdhismeedka cellulose.
Dhexdhexaadinta: Dhexdhexaad ka dhig isku dhafka falcelinta si aad u joojiso falcelinta oo aad u hesho sheyga etherka cellulose ee la rabo.
7. Dhaqidda iyo qalajinta:
Alaabta etherka cellulose waa la dhaqaa si looga saaro alaabta iyo wasakhda.Nadiifinta ka dib, walxaha waa la qalajiyey si loo gaaro qoyaanka la rabo.
8. Shiidida iyo baadhista:
Ethers cellulose qalalan ayaa dhulka lagu dhigi karaa si loo helo cabbirro gaar ah.Sieving waxa loo isticmaalaa in lagu kala saaro qaybaha cabbirka loo baahan yahay.
8. Xakamaynta tayada:
Tallaabooyinka xakamaynta tayada ayaa lafuliyaa si loo hubiyo in ether-ka cellulose ay la kulmaan heerar cayiman.Tan waxaa ku jira tijaabinta viscosity, heerka beddelka, waxa ku jira qoyaanka iyo cabbirrada kale ee khuseeya.
9. Baakadaha iyo keenista:
Alaabta ether-ka cellulose-ka ugu dambeysa waa la baakadeeyay waxaana loo qaybiyay warshado kala duwan.Baakadaha saxda ah waxay hubisaa in tayada alaabta la ilaaliyo inta lagu jiro kaydinta iyo gaadiidka.
Habka xajinta ee ether-ka cellulose waa tillaabooyin taxane ah oo isku dhafan oo ku lug leh xulashada alaabta ceeriin, habka garaacista, biliijka, wax ka beddelka cellulose, nadiifinta, dhaqida, qalajinta, shiididda iyo ilaalinta tayada.Tallaabo kastaa waxay muhiim u tahay go'aaminta tayada iyo sifooyinka ether-ka cellulose ee la soo saaray, taasoo ka dhigaysa mid ku habboon codsiyo kala duwan.Horumarka tignoolajiyada ayaa sii wanaajinaya oo wanaajinaya hababkan si loo kordhiyo waxtarka iyo joogtaynta wax soo saarka ether cellulose.
Waqtiga boostada: Jan-15-2024