I-Selsulose Othersisetion

01. Intshayelelo ye-seluplose

I-seluplose yi-macromolecular polysaccharide edityaniswe ngeglucose. I-infollin emanzini nakwimilondolozo ngokubanzi yezinto eziphilayo. Yeyona nto iphambili yokutyala iiselfowuni, kwaye okona kusasazwa kakhulu kwaye uninzi lwe-polysacchaacchaacchacchaackackive yendalo.

I-seluplose yeyona nto inobutyebi obunqabileyo emhlabeni, kwaye kukwase-polymer yendalo ngokuqokelelwa. Inezibonelelo zokuhlaziywa, ngokupheleleyo biodegrades, kunye ne-biomatise elungileyo.

I-02. Izizathu zokuguqula i-selsulose

I-selsulose macromolecules ziqukethe inani elikhulu le-looh. Ngenxa yesiphumo se-hydrogen bonds, amandla aphakathi kwe-macromolecules inkulu, eya kukhokelela kwi-clshalpy enkulu yokunyibilika △ h; Kwelinye icala, kukho amakhonkco kwiMacromolecules. Njengakhiwo, ingqongqo ye-molecular thein inkulu, eya kukhokelela kwinguqu encinci yokunyibilika inyibiliki. Ezi zizathu zibini zenze ubushushu be-molten selsulose (= △ h / △ s) iya kuba phezulu, kwaye amaqondo obushushu e-seluplose aphantsi. Ke ngoko, xa i-selsulose iseshushu kwiqondo lokushisa elithile, imicu iya kuvela i-phenomenon ukuba i-selsulose igqitywe ngaphambi kokuba inyibilike, ke, ukulungiswa kwezixhobo zeselselose azinakukwazi ukunyibilika kuqala emva koko.

I-03. Ukubaluleka kwenguqulelo yeselselose

Ngokugqobhoza ngokuthe ngcembe kwezixhobo zefoslil kunye neengxaki ezinokubangelwa ziingcambu zefiliki zefilimical zefilimical, uphuhliso kunye nokusetyenziswa kwezinto zenyama ehlaziyiweyo yendalo sele iqwalasele umntu oshushu. I-seluplose yeyona nto ibalulekileyo yendalo enokuhlaziywa kwindalo. Inezikhundla ezigqwesileyo ezinjengokuhlela okuhle, i-antistatic, i-moya eyomeleleyo, idole elungileyo, inxibe kakuhle, iyokusebenza ngokulula, kunye ne-biodegraphiadical. Ineempawu ezingenakuthelekiswa nanto kwiinyikimi zekhemikhali. .

I-selsulose Molecules iqukethe inani elikhulu lamaqela e-hydroxyl, ekulula ukwenza i-intramolecular kunye ne-neydrogen ye-hydrogen ye-hydrogen kwaye ihlise amaqondo obushushu aphezulu ngaphandle kokunyibilika. Nangona kunjalo, i-sellyulose inendawo entle yokuhlala, kwaye i-hydrogen ye-hydrogen ye-hydrogen inokutshatyalaliswa ngokuguqulwa kwemichiza okanye ukugcwala kwendlela, nto leyo enokuthi inciphise ngokufanelekileyo indawo yokunyibilika. Njengentlobo ngeentlobo zeemveliso zemizi-mveliso, isetyenziswe ngokubanzi kwimibuzo, ukwahlulwa kwe-membrane, iiplasitiki, icuba kunye neengubo.

I-04. I-cleculose yokutsalwa

I-SelerUlose Ether luhlobo lweselselose efunyenwe ngokutyiswa kwe-etheriyase ye-selsulose. Isetyenziswe ngokubanzi ngenxa yokungaziphathi kakuhle, ukumiswa, ukumiswa, ukuqulunqwa kwefilimu, iColoid yeIlimi, iColoid, ukugcinwa kweMiswayini, kunye ne-adheries. Isetyenziswe ekutyeni, amayeza, ukwenza iphepha, ipeyinti, izinto zokwakha, njl.

Isilumkiso se-seluplose luluhlu lwezinto eziveliswayo eziveliswa yindlela yokuphendula ye-hydroxyl kwi-selsulose thein ye-alkali enemiqathango ephantsi kweemeko ze-alkali. Ukusetyenziswa kwamaqela e-hydroxyl kunciphisa inani lezixhobo ze-hydrogen ze-hydrogen ukunciphisa imikhosi engatshatanga, ngaloo ndlela ziphucule uzinzo lwe-selselose, kwaye kwangaxeshanye zinciphisa indawo yokunyibilika kwesellulose.

Imizekelo yefuthe lokutyiswa kwe-etherhesition ngeminye imisebenzi ye-selulose:

Sebenzisa i-cotton ecocekileyo njengezinto eziluhlaza okwesiseko, abaphandi basebenzise inkqubo ye-esterication ye-ERYXYMETHLY I-ERYDOse ETEROSTPUPLL ENCELOPLL ETEROSTPLL LE TOXCOSE TOXOLY NOKWENZA I-ALKALI YOKUGQIBELA NOKUGCINWA KWEEMPAWU. Sebenzisa inkqubo ye-etherhesition ye-ofisi enye, i-carboxymethyth hydroxylypropy inesifo setyuwa, ukumelana ne-asidi kunye nokunganyangeki. Ngokutshintsha isixa esilinganiselweyo se-propylene oxide kunye ne-chlorocetic acid, iimveliso ezinebhokisi ye-carboxymethyl kunye nomxholo we-hydroxypropy unokulungiswa. Iziphumo zovavanyo zibonisa ukuba i-carboxymethyl i-hydroxdpropy yendlela yenyathelo elinye inomjikelo omfutshane, ukuselwa okusezantsi, kwaye imveliso inesityulo esihle kunye ne-didid elungileyo kunye nokunganyangeki okulungileyo.

I-05. Ithemba lokufumana i-eterase ye-clecuriber

I-seluplose yikhemikhali ebalulekileyo kunye nezinto eziluhlaza zekhemikhali ezityebileyo kwizixhobo, eziluhlaza kunye nendalo enobuhlobo, kwaye zinokuphinda zisebenze. I-Deriverives ye-Sleclose OtherOse Stractisetion isebenza kakuhle, uluhlu olubanzi lokusebenzisa iziphumo kunye neziphumo ezigqwesileyo, kwaye uhlangabezane neemfuno zoqoqosho lwesizwe ukuya kwinqanaba elikhulu. Kunye neemfuno zophuhliso loluntu, kunye nenkqubela phambili yetekhnoloji kunye nokufezekiswa kwezakhiwo kwixesha elizayo, ukuba izinto zokwenziwa eziluhlaza kunye neendlela zokwenziwa kweselselose zinokuzihlaziya ngakumbi, ziya kusetyenziswa ngokupheleleyo kwaye ziqonde uluhlu olubanzi lwezicelo . Ixabiso