Ilimin sunadarai ma'anar da bambancin fiber, cellulose da cellulose ether

Fiber:

Fiber, a cikin mahallin sinadarai da kimiyyar kayan aiki, yana nufin nau'in kayan da aka siffanta su da tsayin daka mai kama da zare. Wadannan kayan sun hada da polymers, wadanda manyan kwayoyin halitta ne da aka yi da maimaita raka'a da ake kira monomers. Zaɓuɓɓuka na iya zama na halitta ko na roba, kuma suna samun amfani da yawa a masana'antu daban-daban ciki har da yadi, composites, da biomedicine.

Zaɓuɓɓukan halitta ana samun su daga tsirrai, dabbobi, ko ma'adanai. Misalai sun haɗa da auduga, ulu, siliki, da asbestos. Zaɓuɓɓukan roba, a gefe guda, ana kera su daga sinadarai ta hanyar matakai kamar polymerization. Nylon, polyester, da acrylic misalai ne na gama gari na zaruruwan roba.

A fagen ilmin sinadarai, kalmar “fiber” yawanci tana nufin tsarin tsarin abu maimakon tsarin sinadaransa. Fibers ana siffanta su da babban yanayin yanayinsu, ma'ana sun fi tsayi da yawa fiye da faɗin su. Wannan tsari mai tsawo yana ba da kaddarorin kamar ƙarfi, sassauƙa, da dorewa ga kayan, yin fibers masu mahimmanci a aikace-aikace daban-daban tun daga sutura zuwa ƙarfafawa a cikin kayan haɗin gwiwa.

Cellulose:

Cellulosepolysaccharide ne, wanda shine nau'in carbohydrate wanda ya ƙunshi dogayen sarƙoƙi na ƙwayoyin sukari. Ita ce mafi yawan adadin kwayoyin halitta a Duniya kuma yana aiki a matsayin tsarin tsari a cikin ganuwar tantanin halitta. A cikin sinadarai, cellulose ya ƙunshi maimaita raka'a na glucose wanda aka haɗa tare da haɗin β-1,4-glycosidic.

Tsarin cellulose yana da fibrous sosai, tare da ƙwayoyin cellulose guda ɗaya waɗanda ke daidaita kansu cikin microfibrils waɗanda ke ƙara haɗuwa don samar da manyan sifofi kamar zaruruwa. Waɗannan zaruruwa suna ba da tallafi na tsari ga ƙwayoyin shuka, suna ba su ƙarfi da ƙarfi. Baya ga rawar da yake takawa a cikin tsire-tsire, cellulose kuma babban sashi ne na fiber na abinci da ake samu a cikin 'ya'yan itatuwa, kayan marmari, da hatsi. Mutane ba su da enzymes da ake bukata don rushe cellulose, don haka yana wucewa ta tsarin narkewar abinci mai yawa, yana taimakawa wajen narkewa da kuma inganta lafiyar hanji.

Cellulose yana da aikace-aikacen masana'antu da yawa saboda yalwar sa, sabuntawa, da kyawawan kaddarorin kamar biodegradability, biocompatibility, da ƙarfi. An fi amfani da shi wajen samar da takarda, yadi, kayan gini, da man fetur.

Cellulose Ether:

Cellulose ethersrukuni ne na mahadi da aka samu daga cellulose ta hanyar gyaran sinadaran. Waɗannan gyare-gyare sun haɗa da gabatarwar ƙungiyoyi masu aiki, irin su hydroxyethyl, hydroxypropyl, ko carboxymethyl, akan kashin bayan cellulose. Sakamakon ethers cellulose yana riƙe da wasu halayen halayen cellulose yayin da suke nuna sabbin kaddarorin da ƙarin ƙungiyoyin aiki suka bayar.

Daya daga cikin manyan bambance-bambance tsakanin cellulose da cellulose ethers ta'allaka ne a cikin solubility Properties. Yayin da cellulose ba shi da narkewa a cikin ruwa da kuma mafi yawan abubuwan da ake amfani da su na kwayoyin halitta, ethers cellulose sau da yawa suna da ruwa mai narkewa ko kuma suna nuna ingantacciyar solubility a cikin kwayoyin halitta. Wannan solubility yana sa cellulose ethers kayan aiki iri-iri tare da aikace-aikace iri-iri a cikin masana'antu kamar su magunguna, abinci, kayan shafawa, da gini.

Misalai na yau da kullun na ethers cellulose sun haɗa da methyl cellulose (MC), hydroxypropyl cellulose (HPC), da carboxymethyl cellulose (CMC). Ana amfani da waɗannan mahadi azaman thickeners, binders, stabilizers, da kuma masu yin fim a cikin nau'o'i daban-daban. Misali, ana amfani da CMC sosai a cikin samfuran abinci azaman wakili mai kauri da emulsifier, yayin da ake amfani da HPC a cikin samfuran magunguna don sakin magunguna.

fiber yana nufin kayan da ke da tsayi, tsari mai kama da zare, cellulose shine polymer na halitta wanda aka samo a cikin ganuwar tantanin halitta, kuma ethers cellulose sune abubuwan da aka gyara na cellulose tare da aikace-aikacen masana'antu daban-daban. Yayin da cellulose ke ba da tsarin tsarin don tsire-tsire kuma yana aiki a matsayin tushen fiber na abinci, ethers cellulose yana ba da ingantaccen narkewa kuma suna samun amfani a cikin masana'antu da yawa saboda abubuwan da suka dace.