Yintoni i-seluplose ether?

I-SelerUlose Ether yi-polymer ye-polymer ye-polymer yesakhiwo esenziwe nge-sellyulose. I-Glucosyl nganye ye-Glucosyl kwi-selsulose iqukethe amaqela amathathu e-hydroxyl, iqela le-hydroxyl kwi-atom yesithandathu ye-carbon, i-hydroxy yeqela le-hydrocyl ithathelwa indawo ye-hydrocarbon yeqela lokwenza izinto. Yimveliso apho i-hydrogen yeqela le-hydroxyl kwi-selselose polymer ithathelwa indawo yiqela le-hydrocarbon. 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.

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.

1.Nature:

Ukunyibilika kweseluplose emva kokukhuphela ukutshintsha kakhulu. Ingancitshiswa emanzini, i-dilute acid, i-dilute alkali okanye i-organic yeSholvent. I-solity ikakhulu iyo ikakhulu ixhomekeke kwizinto ezintathu: (1) iimpawu zamaqela aziswe kwinkqubo ye-Etherhesition, iziseko zeqela, kwaye iphantsi i-smobinase ye-Ether i-Ersulose kukunyibilika emanzini; . Uninzi lweelelsulose e kanina zinokuchithwa kuphela emanzini phantsi kwenqanaba elithile lokufakwa endaweni, kwaye inqanaba lokufaka endaweni 0 ne-3; . Iphantsi kwenqanaba lokufakwa endaweni enokuthi ichithwe emanzini, ebanzi lubanzi. Zininzi iindidi ze-seluplose entsebenzo esebenzayo, kwaye zisetyenziswa ngokubanzi ekwakhiweni, i-petroleum, ukutya, ipeyinti, ipeyinti, ipeyinti, amanye amashishini.

2. Phuhlisa:

I-China lelona phulo likhulu lehlabathi kunye nomthengi we-seluplose ether, enenqanaba eliqhelekileyo lokukhula elingaphezulu kwe-20%. Ngokweenkcukacha-manani zokuqala, kukho malunga ne-50 yemveliso ye-Ether i-Ether i-EARSUSPRESS e-China, iMveliso yeMveliso yeSeluplose igqithile kwiitoni ezingama-400,000, kwaye ihamba ngamashishini angaphezu kwe-10,000, i-Hiangsung kunye ne-jiangsung kunye ne-jiangsu. , Zhejiang, Shanghai kunye nezinye iindawo.

3. Intswelo:

Ngo-2011, isikhundla semveliso yaseChina saseCMC sasimalunga nama-300,000 eetoni. Ngemfuno ekhulayo ye-Selest Sether ephezulu yokuphela kwamashishini anje ngamayeza, ukutya, kunye neekhemikhali zemihla ngemihla, imfuno yekhaya, imfuno yezinye iimveliso ze-Elet ye-Elet ngaphandle kwe-CMC ikhula. , amandla emveliso ye-MC / HPMC imalunga ne-120,000 yeetoni, kunye ne-hec imalunga ne-20,000 yeetoni. I-PAC isekwinqanaba lokukhuthaza kunye nelesicelo e China. Ngokuphuhliswa kwamabala e-oyile amakhulu kunye nokuphuhliswa kwezinto zokwakha, ukutya, iikhemikhali kunye namanye amashishini, isixa kunye necandelo le-PAC liyanda kwaye lisandiswa minyaka le, kunye ne-TOS yokuvelisa.

4. Ukwahlulahlulwa:

Ngokutsho kwendlela yemichiza yokuthathwa kwezinto, banokwahlulwa baba ngama-Antion, Caric kunye nooMan Kuxhomekeka kwi-Arhente ye-Eleesiation esetyenzisiweyo, kukho i-methyl selsulose, hydroxyyl methulosel seluplose, ethroxymethy, chydroxymethl seluplose, cydroxymethl selyulose, benzyl I-cyanothyl seluplose, i-carboxeymethyl hydroxyyl seluplose yeseluplose yeselutise kunye ne-phenyl seluplose, njl njl methyl sellise.

Methylceluplose:

Emva kokuba ikotoni ecocekileyo iphathwa ngeAlkali, i-Selesese i-Ersulose iveliswa ngothotho lwe-methane hloride njengearhente ye-e-hloride njengearhente ye-e-hloride njenge-arhente yokwenyama. Ngokubanzi, inqanaba lokufakwa endaweni le-1.6 ~ 2.0, kwaye i-solinoing nayo yahlukile ngamanqanaba ahlukeneyo okufaka endaweni. Yeyokutshekisha i-enic sete

. Isisombululo se-ACTEAFOOF sizinzile kakhulu kuluhlu lwe-pH = 3 ~ 12. Ihambelana ngokuchanekileyo nesitatshi, i-Gum Gum, njl. Njl. Xa iqondo lobushushu lifikelela kubushushu bendawo, ukumela.

. Ngokubanzi, ukuba isixa esongezelelekileyo sikhulu, ukulunga kuncinci, kwaye i-vickosity inkulu, inqanaba lokugcina amanzi liphezulu. Phakathi kwazo, isixa-mali songezelelo sinefuthe elikhulu kwiqondo lokugcina amanzi, kwaye inqanaba le-viscofity alikho ngqo kwinqanaba leqondo lokugcina amanzi. Inqanaba lokuchithwa ikakhulu lixhomekeke kwinqanaba lokutshintsha komphezulu wesuntswana kunye nobumdaka obuchaphazelekayo. Phakathi kwezi zinto zingentla kwe-Sethes, iMethyl Selelose kunye neHydroxypropyl Methyl Selelose anemilinganiselo ephezulu yokugcina amanzi.

. Ngokubanzi, amaqondo obushushu aphezulu, okuphezulu kokugcina amanzi. Ukuba ubushushu obuphango bungaphezulu kwe-40 ° C, ukugcinwa kwamanzi kwe-methyl seluplose kuya kuncitshiswa kakhulu, kuchaphazele kakhulu ukwakhiwa kodaka.

(4) I-Methyl Selelose inefuthe elibonakalayo ekusebenzeni nasebumbano lodaka. "Ukunamathela" apha kubhekisa kumandla aqathayo abonakala phakathi kwesixhobo somsebenzi wesicelo kunye nodonga, oko kukuthi, ukumelana nodaka. Ukuthambelela kuphezulu, ukumelana nodaka kubukhulu, kwaye amandla afunwa ngabasebenzi kwinkqubo yokusetyenziswa inkulu, kwaye ukusebenza kodaka akunamsebenzi. Ukudibana kwe-methyl seluplose kwinqanaba eliphakathi kwimveliso ye-Ether seluplose.

Hydroxypropylmethylcelcelcelcelcelose:

I-Hydroxypropyl Methylcelcelcelose yintlobo ngeentlobo zeeselfowuni ezikhutshelwayo kunye nokusetyenziswa kwanda ngokukhawuleza. Yinto engeyiyo i-ionic ye-ionic ye-iether exutywe ye-ethet ye-cotton ehlaziyiweyo emva kokuqiniseka, usebenzisa i-propylene oxide kunye ne-methyl chloride njengearhente yokuphendula, ngokuphendula. Inqanaba lokufakwa endaweni yi-1.2 ~ 2.0. Iipropathi zayo ziyahluka kuxhomekeka kumyinge we-playxyl kumxholo we-hydroxypropy.

. Kodwa iqondo lokuhlaselwa layo lokuhlaselwa kwamanzi ashushu liphezulu kakhulu kune-methyl seluplose. Ukunyibilisela emanzini abandayo kuyaphuculwa kakhulu xa kuthelekiswa neMethyl Selelose.

. Ubushushu buchaphazela i-viscofity yayo, njengoko amaqondo obushushu ayanda, i-viscosity ihla. Nangona kunjalo, impembelelo yophawu lwayo oluphezulu kunye neqondo lobushushu lingaphantsi kune-methyl sellulose. Isisombululo sayo sizinzile xa sigcinwe kubushushu begumbi.

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. I-Caustic Soda kunye namanzi e-lime anempembelelo encinci ekusebenzeni kwayo, kodwa uAlkali unokukhawulezisa ukupheliswa kwayo kwaye unyuke kancinci. I-HydroxyPOpyl Methylcelcelcelose iZinzile kwi-SECTs eqhelekileyo, kodwa xa uxinzelelo lwesona sityibilili liphezulu, i-viscosity ye-hydroxypropyl methylcelses isisombululo sithanda ukunyuka kwesisombululo.

. Ezinjenge-polyvinyl utywala, i-starch ether, i-gum yemifuno, njl.

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Hydroxyyl seluplose:

Yenziwe kwiCotton ehlaziyiweyo ephathwe ngeAlkali, kwaye yasabela kwi-Ethylene oxide njenge-Arhente ye-Etherropanol. Inqanaba layo lokufaka endaweni ye-1.5 ~ 2.0. Inombala oqinileyo kwaye kulula ukuyifumana ukufuma.

. Isisombululo sayo sizinzile kubushushu obuphakamileyo ngaphandle kweGelling. Ingasetyenziselwa ixesha elide phantsi kobushushu obuphakathi kudaka, kodwa ukugcinwa kwamanzi kwawo kusezantsi kune-methyl sellyulose.

. Ukusasazeka kwawo ngamanzi kubi kakhulu kune-methyl seluplose kunye ne-hydroxypropyl methyl sethyulose.

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(4) ukusebenza kwehydroxyyl seluploseIveliswe ngamashishini asekhaya ngokucacileyo ephantsi kune-methyl seluplose ngenxa yomxholo wayo wamanzi aphezulu kunye nomxholo ophezulu we-ash.

. Kwiqondo lobushushu malunga ne-40 ° C, i-mldew inokubakho ngeentsuku ezi-3 ukuya kwezi-5, eziya kuthi zichaphazele ukusebenza kwayo.

I-Carboxymethyl Sellulose:

I-Lontel Seleulose Ether yenziwa kwi-fibers yendalo (umqhaphu, njl.njl) Inqanaba lokufakwa endaweni yi-0.4 ~ 1.4, kwaye intsebenzo yayo ichaphazeleka kakhulu ngumgangatho wokufaka endaweni.

(1) Ibhokisi ye-carboxymethyl seluprose ye-hygroscopic, kwaye iya kuba namanzi amaninzi xa igcinwe phantsi kweemeko ngokubanzi.

. Xa iqondo lobushushu lingaphezulu kwe-50 ° C, i-viscosity ayinakuphikwa.

(3) Uzinzo lwayo luchaphazeleka kakhulu yiPH. Ngokubanzi, inokusetyenziswa ngodaka olusekwe kwiGyppum, kodwa hayi kudaka lwesamente. Xa i-alkaline kakhulu, iyakuphulukana noVikosity.

(4) Ukugcinwa kwayo kwamanzi kude kakhulu kune-methyl seluplose. Inefuthe lokubuyisa kwi-gyppum-esekwe ngodaka kwaye inciphise amandla ayo. Nangona kunjalo, ixabiso lebhokisi yebhokisi ye-carboxymethyl isezantsi kakhulu kune-methyl seluplose.

I-Selsulose Alkyl Ether:

Abameleki yi-methyl sellise kunye ne-Ethyl Selelose. Kwimveliso yezamashishini, i-methyl chloride okanye i-ethyl chloride isetyenziswa njenge-arhente yokwamkelwa, kwaye impendulo yile ilandelayo:

Kwifomula, r imele i-CH3 okanye C2h5. I-Alkali Discation ayichaphazeli inqanaba le-etheriya, kodwa ikwachaphazela ukusetyenziswa kweendlela ze-alkyl halides. Ezantsi kakhulu iAlkali, eyomeleleyo ye-hydrolysis ye-alkyl halide. Ukwenzela ukunciphisa ukusetyenziswa kwearhente yokuthetha, uxinzelelo lwe-alkali kufuneka lonyuswe. Nangona kunjalo, xa ugxininiso lwe-alkali luphakamile kakhulu, isiphumo sokubila seselfowuni sincitshisiwe, esingayilungesi kwi-ethe terication ke ngoko kwancitshiswa. Ukulungiselela le njongo, i-zue egqwesileyo okanye i-ly eqinileyo iyongezwa ngexesha lokuphendula. Isalathiso kufuneka sivuselele isixhobo esihle kwaye siqhekeze ukuze ialkali ingasasazwa ngokulinganayo. I-Methyl Selelose isetyenziswe ngokubanzi njenge-tickener, inamathela kunye ne-Cosloid njl njl. Ingasetyenziselwa ukusasazeka kwembewu, i-Inki yokuThengisa, kwaye isetyenziswa kwi-inki ye-Tosmeting, kwaye isetyenziswe kwisamente esetyenzisiweyo ukulawula useto Ixesha kwaye unyuse amandla okuqala, njl njl. I-Seluplose ethathiweyo ye-Sethyl inyibilikiswe emanzini nasekuhlambeni izisombululo, kunye neemveliso ezikwimigangatho ephezulu zinyibilikiswa kwizinyibilikisi eziphilayo. Ihambelana ngokuchanekileyo kunye ne-Persins eyahlukeneyo kunye neeplasitikisi. Ingasetyenziselwa ukwenza iiplastiki, iifilimu, ii-varnies, ii-adhesivers, izixhobo zokuthintela i-Hydroxayl, njl njl. Alkyl kwi-HydroXykyl amaqela.

I-seluplose hydroxalkyl other:

Abameli baHydroxyylyl seluplopy kunye ne-hydroxypropyl seluplose Iiarhente eziqinisekisayo zii-epoxides ezifana ne-Ethylene oxide kwaye i-propleynene oxide. Sebenzisa i-acid okanye isiseko njengokukhulisa. Ukuveliswa kwezamashishini kukuphendula i-alkali Seleese nge-Arhente ye-ESKICATER: I-HYDROXCYTHTH LOLXOIT ngexabiso eliphezulu linyibilika kuwo omabini amanzi abandayo kunye namanzi ashushu. I-Hydroxypropyl seluplose enexabiso eliphezulu linyibilika kuphela emanzini abandayo kodwa hayi emanzini ashushu. I-HydroxyEtheetheetheetheetheetheethy inokusetyenziswa njenge-tickener yengubo ye-Latex, iPrintale yokuPrinta kunye ne-DEE yokuthintela i-DEE Ukusetyenziswa kwe-hydroxdproplol yeseluplose ifana neyo ye-hydroxyythl sellulose. I-HydroxyPOpyl seluplose enexabiso eliphantsi lokusetyenziswa linokusetyenziswa njengokungafuneki kwexesha elifanelekileyo, elinokuba nokubopha kunye nokubopha iipropathi.

I-Carboxymethyl Selelose, isigama sesiNgesi se-CMC, sikhona ngokubanzi ngendlela yetyuwa yesodium. Iarhente ye-ether i-monolothorocetic acid, kwaye impendulo yile ilandelayo:

I-Carboxymethyl Selelose yesona sifo seselula sinyibiliki. Kwixa elidlulileyo, yayisetyenziswa ikakhulu njengokuntywila kodaka, kodwa ngoku idluliselwe ukuba isetyenziswe njengesongezo, impahla yengubo ye-Carboxymethy Inokusetyenziswa kukutya, i-cosmetics, kunye nokubumba.

I-Polyanionic selsulose (i-PAC) yi-Ionic Seleclose i-ether kwaye yimveliso ePhakamileyo ye-carboxymethyl sellyulose (CMC). Yinto emhlophe, emhlophe-emhlophe okanye igranule encinci okanye engenabunzi, engenabungozi, ngokulula ukunyibilikisa isisombululo senze isisombululo esibonakalayo kunye nozinzo oluhle kakhulu kunye nokuxhathisa ubushushu obuthile, kunye nepropathi yetyuwa. Akukho mbiza kunye nokuwohloka. Ineempawu zokucoceka okuphezulu, inqanaba eliphezulu lokufakwa endaweni, kunye nokusasazwa ngokutsha kweendawo ezingenayo. Ingasetyenziswa njenge-binder, i-tickener, i-Rheoology Sposho, ilahleko ye-FAID, isetyenziswa kakhulu, njl njl.

I-cyanothyl seluplose yimveliso yokuphendula ye-sellulose kunye ne-acrylonitile phantsi kwe-alkali.

I-cyanothyl seluplose inomgangatho ophakamileyo wokulala kunye nelahleko ephantsi ye-counted kwaye inokusetyenziswa njenge-phostrix ye-phospix ye-phospix kunye nezibane ze-elektroniki. I-clainothyl ye-cutanoethyl esezantsi inokusetyenziswa njengephepha lokufaka i-spericars.

I-EARECY KOSTY KOROOS, Alfeleyl

Iindlela zokulungiselela i-Telulose I-Ete Inokwahlulwa ibe yindlela ephakathi yamanzi, indlela yeSolvent, indlela yokuxovula, indlela yesilayidi, indlela yesigaba segesi, indlela yesigaba segesi kunye nokudityaniswa kwezi ndlela zingasentla.

Umgaqo-siseko we-5.

I-Collep ephezulu ye-α-ise selupose ifakwe isisombululo se-Alkaline ukusikhulula ukutshabalalisa i-hydrogen ye-hydrogen, kwaye ivelise i-Alkali Seamention, emva koko iphendule i-Arhente yokufumana i-elsulose. Iiarhente zokuthintela zibandakanya ii-hydrocarbon halides (okanye i-sulfates), i-epoxides, kunye ne-α kunye ne-β kunye ne-β kunye ne-β angeniselwano kunye nee-elektroniki.

Umsebenzi we-6.basic:

Imixokelelwane idlala indima ephambili ekuphuculeni intsebenzo yokufakelwa komxube oxubeneyo, kwaye i-akhawunti engaphezulu kwe-40% yexabiso lezinto eziphathwayo. Inxalenye ebonakalayo yentengiso kwimakethi yasekhaya ibonelelwa ngabavelisi bezinye, kwaye i-adsage yemveliso yemveliso inikezwe ngumthengisi. Ngenxa yoko, iindleko zodaka ezixubileyo ezixubileyo zihlala ziphakame, kwaye kunzima ukwenzela ukwehla i-springs eqhelekileyo kunye nokufakelwa kwendawo enexabiso elikhulu kunye noluhlu olubanzi. Iimveliso zokuphela kwemakethi eziphezulu zilawulwa ziinkampani zangaphandle, kwaye abavelisi abaxubeneyo banomxubo baneenzuzo ezisezantsi kunye nokufikeleleka kwexabiso eliphantsi; Ukusetyenziswa kwe-temisoxting acks ecwangcisiweyo kunye nophando olujolise kulo, kwaye ngokubonayo kulandela iifomula zangaphandle.

I-Arhente yokugcina amanzi yindawo ephambili yokuphucula indlela yokugcina amanzi of yodaka oluxubileyo, kwaye lolunye uphawu oluphambili ukumisela iindleko zezixhobo ezixubileyo. Umsebenzi ophambili weI-Selersese Etherkukugcinwa kwamanzi.

I-Telupelose Ether ligama eliqhelekileyo kuthotho lweemveliso eziveliswa yimpendulo ye-alkali selutase kunye nearhente yokukhuthaza phantsi kweemeko ezithile. I-Alkali Selelose ithathelwa indawo yi-Arhente eyahlukileyo yokufumana ii-seluplose ezahlukeneyo. Ngokweempawu ze-ionition zezinto ezizithobe, ii-seluplose e-Sethes zihlulwe zangamacandelo amabini: Ionic (i-Ionic (efana ne-carboxymethyl) kunye ne-Inthyl Selelose). Ngokohlobo oluthathekileyo, i-seluplose ether inokwahlulwa ibe yi-monoether (njenge-methyl selsulose) kunye ne-ether exutywe (njenge-hydroxypropy). Ngokutsho komoya ohlukileyo, lunokwahlulwa kulwahlulo lwamanzi (njenge-hydroxyytethl seluplose) kunye ne-organction yolulazi ye-solvent (njenge-Ethyl sellulose). Udaka oluxubeneyo lukhulu ikakhulu ikakhulu sesele inyibilikisi, kwaye i-selsulose enyibilikayo yahlulahlulwe yanguhlobo lwethutyana kunye nohlobo lokuchithwa komhlaba.

Indlela yesenzo sesenzo se-selsulose ekrwele i-tellase kuburharha yile ilandelayo:

. Inkqubo yokuxuba kunye nokugungqa nokwakha.

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