I-selsulose

1. Umsebenzi ophambili we-iluplose ether

Ngobuqhetseba obuxubeneyo, i-Selersese Ether yeyona nto iphambili eyongezwe kwisixa esiphantsi kakhulu kodwa sinokuphucula kakhulu ukusebenza kodaka lwamanzi kwaye lichaphazele ukusebenza kobukho.

I-2. Iindidi zeSelesese

Ukuveliswa kwe-ether yeselselose kwenziwa ikakhulu ngeentsinga zendalo nge-Alkali Dastions, i-Grafting Reaction (i-Etherting), ukuhlamba, ukumisa, ukugaya kunye nezinye iinkqubo.

Ngokutsho kwezinto eziphambili eziluhlaza, iintsinga zendalo zinokwahlulwa zibe yi: i-fiber ye-fiber, i-fiber ye-fiber, i-fiber ye-fiber, njl njl. Okwangoku, abavelisi abaphambili baseSelecelowose basebenzisa i-cotton fiber (ngemveliso ye-nitrocellulose) njengeyona nto iphambili.

I-seluplose thein inokwahlulwa ibe yi-Ionic kwaye ingekho. Uhlobo lwe-IOIC ikakhulu lubandakanya i-carboxymethyl seluplose ityiwa, kwaye uhlobo olungaqhelekanga lubandakanya i-methyl seluplose, i-methyl hydroxythyl (propyl)

Okwangoku, i-Selessese e-Selen esetyenziswayo kubuqhetseba obuxutywe ngokuxubileyo zii-methyl seteli (MC), i-MCYL Hydroxlose I-Ether (i-MHYL), i-HPMCYLY METHY I-ETER I-TEETE (HPMCY) Ngobuqhetseba obuxubeneyo, ngenxa yokuba i-ionic selsulose (i-carboxymethyl selsulose ityuwa) isetyenziswe kwiimveliso ezixubileyo ezisebenzisayo ezisebenzisa i-cames, i-limes. Kwezinye iindawo e-China, i-carboxymethyl selsulose ityiwa isetyenziswa njenge-thickener kwezinye iimveliso zangaphakathi kunye ne-shuangfei poment kunye ne-shangfei powder njenge-filler. Le mveliso ixhonywe kwi-daildew kwaye ayithinteli emanzini, kwaye ngoku ikhutshelwe ngaphandle. I-HydroxyEtheetheetheetheethy ikwasetyenziswa kwezinye iimveliso zokuxuba, kodwa inesabelo esincinci sentengiso.

3. Izalathi zeNtsebenzo eziphambili zeSeluplose Ether

(1) Solula

I-seluplose yi-polyhydroxy polymer computer ukuba inganyibiliki okanye inyibilike. Emva kokuthembisa, i-seluplose inyibilikiswa emanzini, i-dilute i-alkali i-solventic, kwaye ine thermoplastity. Ukuluka ikakhulu kuxhomekeka kwizinto ezine: Okokuqala, ukunyibilikisa kuyahluka kakhulu, kokuphatha i-viscosity, kokukhona ukonakala. Okwesibini, iimpawu zamaqela aziswe kwinkqubo ye-Etherhesition, elona qela likhulu leqela, ukunciphisa isolula; Okukhona ipolar liqela elizisiweyo, kube lula i-Seleese i-ether kukunyibilika emanzini. Okwesithathu, inqanaba lokufakwa endaweni kunye nokuhanjiswa kwamaqela e-etherhestic kwi-macromolecules. Uninzi lwe-seluplose enzwa kuphela inokuchithwa kuphela emanzini phantsi kwenqanaba elithile lokufaka endaweni. Okwesine, inqanaba le-polymerization ye-seluplose ether, inqanaba eliphezulu le-polymerizazation, ukunyibilika kancinci; Iphantsi kwenqanaba le-polymerizazation, ebanzi uluhlu lwenqanaba lokufaka endaweni yoko inyibilikiswe emanzini.

(2) Ukugcinwa kwamanzi

Ukugcinwa kwamanzi yintsebenzo ebaluleke kakhulu ye-Teluplose Ether, kwaye kukwayindlela abavelisi abaninzi basekhaya abakomileyo basekhaya, ngakumbi abo bakwimimandla esemazantsi ngamaqondo obushushu aphezulu, anikele ingqalelo. Izinto ezichaphazela umphumo wokugcinwa kwamanzi kodaka lubandakanya isixa se-selsulose ether, viscosity, ukulunga kwendalo esingqongileyo. Ukuphakama kwenani le-itelue-thersuse yongezwa, ngcono umphumo wokugcinwa kwamanzi; Oyena mkhulu, ulunge ngakumbi umphumo wokugcinwa kwamanzi; Abenzele amasuntswana amasuntswana, ngcono umphumo wokugcinwa kwamanzi.

(3) I-Viscosity

I-Viscosity yipharamitha ebalulekileyo yemveliso ye-seluplose ye-ete Okwangoku, abavelisi abahlukileyo be-gather basebenzisa iindlela ezahlukeneyo kunye nezixhobo zokulinganisa i-viscofity. Kwimveliso efanayo, iziphumo ze-viscofity zilinganiswe ngeendlela ezahlukeneyo zahluke kakhulu, kwaye ezinye zinokuphinda-phinda umohluko. Ke ngoko, xa kuthelekiswa nokundwendwela, kufuneka kwenziwe phakathi kweendlela zovavanyo ezifanayo, kubandakanya neqondo lokushisa, i-rotor, njl.

Ngokubanzi, ukuphakama kwe-viscosity, eyona nto ilunge ngakumbi. Nangona kunjalo, ukuphakama kwe-viscofity, ukuphakama kobunzima be-moleculase i-ether, kwaye ukwehla okuphindiweyo kunqulo lwayo kuya kuba nefuthe elibi kumandla kunye nokusebenza komsebenzi wokwakha. Ukuphakama kwe-viscofity, eyona nto icacileyo yokuthambisa kodaka, kodwa ayifani ngokuthe ngqo. Ukuphelisa i-viscofity, kokukhona u-viscous olona dumo lwamanzi luya kuba. Ngexesha lokwakha, lubonakaliswa njengokunamathela kumhlambi kunye nokunamathela okuphezulu kweyona ndawo. Kodwa akuncedi ukonyusa amandla olwakhiwo lofudu lwamanzi. Ngexesha lokwakha, umsebenzi we-Anti-SAG akacacanga. Ngokuchasene noko, i-vissium ephakathi nephantsi kodwa iguqulwe i-methyl ye-melsulose entsebenzo ebalaseleyo ekuphuculeni amandla olwakhiwo lodaka lwamanzi.

(4) ukulunga kwamasuntswana:

I-selsulose ether esetyenziselwa ukungcungcuthekiswa komxube okulandelayo kuyadingeka ukuba ibe ngumgubo, ngomxholo wamanzi aphantsi, kwaye ukulunga kwanamanzi kufuna i-20% ukuya kwi-60% ye-paricle ukuba ingaphantsi kwe-63 μm. Ukucocwa kuchaphazela ukunyibilikisa i-seluplose. I-Coardese Seth I-Telulose Talsulose e-Ethen ihlala ikwimo yegranule, ekulula ukusasaza amanzi ngaphandle kokunyibilika, kodwa imilinganiselo yokuchithwa icotha kakhulu, ezinye iimveliso zasekhaya ziyintyatyambo, Akukho lula ukusasaza nokunyibilikisa emanzini, kwaye uthanda ukuthabatha). Ngobuqhetseba obuxubeneyo, i-Telupelose Ether ichithwayo phakathi kwe-Aggregates, iiFliners ezintle kunye nesamente kunye nezinye izinto zokwenza isamente. Kuphela ngumgubo owoneleyo onokuphepha i-EtherGlomerase ye-Etegase xa uxuba namanzi. Xa i-selsulose ithe yongezwa ngamanzi ukuchitha i-agegram, kunzima kakhulu ukusasaza nokunyibilikisa.

(5) Ukuguqulwa kwe-Selese Ether

Ukuguqulwa kwe-Selese I-Ether i-Ether kukwandiswa kokusebenza kwayo, kwaye yeyona nxalenye ibalulekileyo. Iipropathi ze-etelulose i-ether ingaphuculwa ukwenza ubungangamsha bayo, ukusasazeka, ukunamathela, ukuqina, ukugcinwa kwamanzi, ukugcinwa kwamanzi, kunye nokungafezeki kwefilimu, kunye nokungafezeki kwefilimu, kunye nokungafezeki kwe-oyile.

I-4. Iziphumo zeqondo lobushushu lokugcina amanzi

Ukugcinwa kwamanzi kwe-Sethewose i-Ether ihla ngokunyuka kweqondo lobushushu. Kwizicelo ezibonakalayo ezibonakalayo, udaka luhlala lusetyenziswa kumaxabiso ashushu kumaqondo obushushu aphezulu (ngaphezulu kwe-40 ° C) kwiindawo ezininzi. Ithontsi lokugcinwa kwamanzi kubangele ifuthe elibonakalayo ekusebenzeni nokunganyangeki. Ukuxhomekeka kwayo kubushushu kuya kukhokelela ekunxaxheni kokungcola, kwaye kubaluleke kakhulu ukunciphisa ifuthe lezinto zobushushu eziphantsi kwale meko. Iitopi zodaka zahlengahlengiswa ngokufanelekileyo, kwaye uninzi lweenguqu zenziwe ngeendlela zokupheka zakudala. Nangona inyusa umthamo (ifomula yehlobo), ukusebenza kunye nokunganyangeki kwe-rack akunakukwazi ukuhlangabezana neemfuno zokusetyenziswa, ezifuna ukhuseleko olukhethekileyo lwe-ether, njl njl. iphumelele kubushushu obuphezulu. Igcina isiphumo esingcono xa kuphezulu, ukuze inikele ukusebenza ngcono kwiimeko ezinzima.

I-5. Isicelo kudaka oluxubileyo

Ngobukhinga olulandelayo,, i-seluplose Ether idlala indima yokugcinwa kwamanzi, i-tickeng kunye nokuphucula ukusebenza kokwakha. Umsebenzi wokugcina amanzi ofanelekileyo uqinisekisa ukuba udaka aluyi kubangela isanti, i-powding kunye nokuncitshiswa kwamandla ngenxa yokunqongophala kwamanzi kunye nokungazaliswanga. Iziphumo zokutyibilika ziphucula kakhulu amandla olwakhiwo lodaka olumanzi. Ukongezwa kwe-etelulose i-ether kunokuphucula kakhulu ukufakwa kwamanzi, kwaye kuhlobo oluhle ukuya kwiindawo ezahlukeneyo, ngaloo ndlela kuphucule udaka lodonga kunye nokunciphisa inkunkuma. Ukongeza, indima ye-Telulose Ether kwiimveliso ezahlukeneyo iyahlukile. Umzekelo, kwi-tilestheivers, i-seluplose i-ether inganyusa ixesha lokuvula kwaye uhlengahlengise ixesha; Ngobuchwephesha boomatshini bokutshiza, kunokuphucula amandla olwakhiwo lodaka lwamanzi; ekuziqokeleleni, kunokuthintela ukuhlala, ukwahlulahlula kunye nokuxhuzula. Ke ngoko, njengesongezelelo esibalulekileyo, i-ethersese isetyenziswe ngokubanzi ngodaka lomgubo.