Synthesis uye zvimiro zveMvura-soluble cellulose ether superplasticizer

Pamusoro pezvo, donje cellulose yakagadzirirwa kuenzanisa Ling-off degree repolymerization uye yakabatwa nesodium hydroxide, 1,4 monobutylsulfonolate (1,4, butanesultone). sulfobutylated cellulose ether (SBC) ine mvura yakanaka solubility yakawanikwa. Mhedzisiro yekushisa kwekuita, nguva yekuita uye raw material ratio pabutyl sulfonate cellulose ether yakadzidzwa. Mamiriro akakwana ekuita akawanikwa, uye chimiro chechigadzirwa chakaratidzirwa neFTIR. Nekudzidza maitiro eSBC pane zvimiro zvesamende paste uye dhaka, zvinowanikwa kuti chigadzirwa chine yakafanana yekudzikisa mvura kune naphthalene yakatevedzana yekudzikisa mvura agent, uye kuchengetwa kwemvura kuri nani pane naphthalene series.mvura inoderedza mumiririri. Iyo SBC ine akasiyana hunhu viscosity uye sulfur yemukati ine dhigirii rakasiyana rekudzoreredza chivakwa chesimende paste. Naizvozvo, SBC inotarisirwa kuve inodzoreredza mvura yekudzikisa mumiriri, inodzoreredza yakanyanya kunaka yekudzikisa mvura mumiririri, kunyangwe yakanyanya kunaka yekudzikisa mvura mumiriri. Zvimiro zvayo zvinonyanya kutsanangurwa nemaitiro ayo mamorekuru.

Mazwi akakosha:cellulose; Equilibrium degree ye polymerization; Butyl sulfonate cellulose ether; Mvura inoderedza agent

Kuvandudzwa uye kushandiswa kwekongiri yekushanda kwepamusoro kune hukama nekutsvaga nekuvandudzwa kwekongiri yekudzikisa mvura. Imhaka yekuonekwa kwemumiriri wemvura-inoderedza iyo kongiri inogona kuve nechokwadi chekushanda kwepamusoro, kusimba kwakanaka uye kunyange kusimba kwepamusoro. Parizvino, kune kunyanya anotevera emhando dzinoshanda kwazvo dzekudzikisa mvura dzinoshandiswa zvakanyanya: naphthalene dzakateedzana mvura yekudzikisa mumiririri (SNF), sulfonated amine resin yakatevedzana yekudzikisa mvura (SMF), amino sulfonate yakatevedzana yekudzikisa mvura (ASP), modified lignosulfonate. yakatevedzana mvura yekudzikisa mumiririri (ML), uye polycarboxylic acid yakatevedzana yekudzikisa mvura mumiririri (PC), iyo inonyanya kushanda mukutsvaga kwazvino. Polycarboxylic acid superplasticizer ine zvakanakira kurasikirwa kwenguva diki, yakaderera dosage uye yakakwira fluidity yekongiri. Nekudaro, nekuda kwemutengo wakakwira, zvakaoma kufarirwa muChina. Naizvozvo, naphthalene superplasticizer ichiri chishandiso chikuru muChina. Mazhinji emagetsi ekudzikisa mvura anoshandisa formaldehyde uye zvimwe zvinhu zvinoputika zvine huremu hwakaderera hwemamorekuru, izvo zvinogona kukuvadza zvakatipoteredza mukugadzirisa uye kushandisa maitiro.

Kuvandudzwa kwekongiri admixtures kumba nekune dzimwe nyika kunotarisana nekushayikwa kwemakemikari emagetsi, kukwira kwemitengo uye mamwe matambudziko. Mashandisiro ekushandisa zvakachipa uye akawanda echisikigo anogona kudzokororwa zviwanikwa sezvishandiso kugadzira mitsva yepamusoro kongiri admixtures ichava yakakosha nyaya yekongiri admixtures research. Starch uye cellulose ndivo vamiririri vakuru vemhando iyi yezviwanikwa. Nekuda kwenzvimbo yavo yakakura yezvakagadzirwa zvinhu, zvinogoneka, zviri nyore kuita nemamwe mareagents, zvinobva kwavari zvinoshandiswa zvakanyanya munzvimbo dzakasiyana siyana. Parizvino, tsvakiridzo ye sulfonated starch semvura inoderedza agent yafambira mberi. Mumakore achangopfuura, tsvakiridzo pamusoro pezvinobva mumvura-inonyungudika cellulose sezvishandiso zvinoderedza mvura zvakakwezvawo pfungwa dzevanhu. Liu Weizhe et al. yakashandisa machira eshinda fiber sembatya yekuumba cellulose sulfate ine huremu hwakasiyana hwemamorekuru uye dhigirii rekutsiva. Kana dhigirii rayo rekutsiva riri mune imwe nhanho, inogona kuvandudza fluidity ye simende slurry uye kusimba kwe simende yekusimbisa muviri. Iyo patent inotaura kuti mamwe mapolysaccharide anobuda kuburikidza nemakemikari reaction kuunza yakasimba hydrophilic mapoka, anogona kuwanikwa pane simende nekupararira kwakanaka kwemvura-inonyungudika polysaccharide derivatives, senge sodium carboxymethyl cellulose, carboxymethyl hydroxyethyl cellulose, carboxymethyl sulfonate cellulose uye zvichingodaro. Zvisinei, Knaus et al. vakaona kuti CHEC inoita seisina kukodzera kushandiswa sekongiri yekudzikisa mvura. Chete apo sulfonic asidhi boka rinopinzwa muCMC uye CMHEC mamorekuru, uye ayo hama molecular uremu iri 1.0 × 105 ~ 1.5 × 105 g/mol, inogona kuva basa kongiri mvura kuderedza mumiririri. Kune maonero akasiyana ekuti mamwe emvura anonyungudika selulosi anobva kune akakodzera kushandiswa seanoderedza mvura, uye kune akawanda marudzi emvura anonyungudika selulosi anobva kune, saka zvinodikanwa kuita zvakadzama uye nekurongeka tsvakiridzo pane synthesis uye. kushandiswa kwezvitsva zve cellulose derivatives.

Mupepa iri, donje cellulose yakashandiswa sechinhu chekutanga kugadzirira yakaenzana polymerization degree cellulose, uyezve kuburikidza ne sodium hydroxide alkalization, sarudza yakakodzera kuita tembiricha, nguva yekuita uye 1,4 monobutyl sulfonolactone reaction, kuiswa kwe sulfonic acid boka pa cellulose. mamorekuru, iyo yakawanikwa inonyungudika mumvura butyl sulfonic acid cellulose ether (SBC) ongororo yechimiro uye kuyedza kwekushandisa. Mukana wekuishandisa semugadziri wekudzikisa mvura wakakurukurwa.

1. Kuedza

1.1 Raw zvinhu uye zviridzwa

Absorbent cotton; Sodium hydroxide (analytical pure); Hydrochloric acid (36% ~ 37% aqueous solution, analytically pure); Isopropyl doro (analytically yakachena); 1,4 monobutyl sulfonolactone (giredhi yeindasitiri, inopiwa neSiping Fine Chemical Plant); 32.5R yakajairika Portland simende (Dalian Onoda Cement Factory); Naphthalene akateedzana superplasticizer (SNF, Dalian Sicca).

Spectrum One-B Fourier Transform infrared spectrometer, yakagadzirwa naPerkin Elmer.

IRIS Advantage Inductively Coupled Plasma Emission Spectrometer (IcP-AEs), yakagadzirwa naThermo Jarrell Ash Co.

ZETAPLUS inogona analyzer (Brookhaven Instruments, USA) yakashandiswa kuyera kugona kwesamende slurry yakasanganiswa neSBC.

1.2 Kugadzirira nzira yeSBC

Chekutanga, iyo yakaenzana polymerization degree cellulose yakagadzirwa zvinoenderana nemaitiro anotsanangurwa mumabhuku. Imwe huwandu hwekotoni cellulose yakayerwa uye yakawedzerwa mufurasiki yenzira nhatu. Pasi pekuchengetedzwa kwenitrogen, dilute hydrochloric acid ine mutsara we6% yakawedzerwa, uye musanganiswa wacho wakamutswa zvakasimba. Zvadaro yakamiswa ne isopropyl doro mubhodhoro remiromo mitatu, yakagadziriswa kwenguva yakati ne 30% sodium hydroxide aqueous solution, yakayera imwe chiyero che 1,4 monobutyl sulfonolactone, uye yakadonhera mumuromo-mitatu flask, yakamutswa pa. nguva imwe chete, uye yakachengetedza tembiricha yenguva dzose tembiricha yekugeza mvura yakagadzikana. Mushure mekuita kweimwe nguva, chigadzirwa chakatonhodzwa kusvika kukamuri tembiricha, yakanatswa ne isopropyl doro, yakapombwa uye yakasefa, uye chigadzirwa chisina kuchena chakawanikwa. Mushure mekugeza nemethanol aqueous solution kakati wandei, kupomba nekusefa, chigadzirwa chakazopedzisira chaomeswa pa60 ℃ kuti chishandiswe.

1.3 SBC chiyero chekuita

Chigadzirwa SBC chakanyungudika mu 0.1 mol/L NaNO3 aqueous solution, uye viscosity yega yega dilution point yesample yakayerwa neUstner viscometer kuti iverenge hunhu hwayo. Iyo sarufa yemukati yechigadzirwa yakatemwa neICP - AES chiridzwa. SBC samples dzakatorwa neacetone, vacuum yakaomeswa, uyezve nezve 5 mg samples dzakagadzika uye dzakatsikirirwa pamwe chete neKBR yekugadzirira sampuli. Infrared spectrum test yakaitwa paSBC uye cellulose samples. Kumiswa kwesimende kwakagadzirwa nemvura-simende reshiyo ye400 uye mvura inodzikisa agent ye1% yesamende mass. Kugona kwayo kwakaedzwa mukati me3 min.

Cement slurry fluidity uye simende dhaka kuderedza mvura mwero inoyerwa maererano GB/T 8077-2000 “Test nzira yeuniform yekongiri admixture”, mw/me= 0.35. Iyo yekumisikidza nguva yekuedzwa kwesamende paste inoitwa zvinoenderana neGB / T 1346-2001 "Test Method yeKushandisa Mvura, Kuisa Nguva uye Kugadzikana kweCement Standard Consistency". Cement mortar compressive simba maererano neGB/T 17671-1999 "samende dhaka simba test Method (IS0 nzira)" nzira yekutsunga.

2. Migumisiro uye nhaurirano

2.1 IR ongororo yeSBC

Infrared spectra yeraw cellulose uye chigadzirwa SBC. Nekuti kunyura kwepamusoro kweS - C uye S - H haina kusimba zvakanyanya, haina kukodzera kuzivikanwa, nepo s=o ine peak yakasimba yekunyura. Naizvozvo, kuvepo kweboka re sulfonic acid muchimiro chemolecular inogona kutsanangurwa nekuona kuvepo kweS = O peak. Zvinoenderana neiyo infrared spectra yeraw material cellulose uye chigadzirwa SBC, mune cellulose spectra, pane yakasimba yekunyudza peak padyo nenhamba yemafungu 3350 cm-1, iyo inorondedzerwa seiyo hydroxyl inotambanudza vibration peak mu cellulose. Iyo yakasimba yekunyura peak pedyo nefungu nhamba 2 900 cm-1 ndeye methylene (CH2 1) inotambanudza vibration peak. Nhevedzano yemabhendi anosanganisira 1060, 1170, 1120 uye 1010 cm-1 anoratidza anotambanudzira vibration absorption peaks eboka rehydroxyl uye inokotama vibration yekunyudza nhongonya dzeether bond (C - o - C). Iyo wave nhamba yakatenderedza 1650 cm-1 inoratidza iyo hydrogen bond absorption peak yakaumbwa neboka rehydroxyl uye yemahara mvura. Iyo bhendi 1440 ~ 1340 cm-1 inoratidza iyo crystalline chimiro che cellulose. Mune IR spectra yeSBC, kusimba kwebhendi 1440 ~ 1340 cm-1 kwakaderera. Simba rekunyura peak pedyo ne1650 cm-1 rakawedzera, zvichiratidza kuti kukwanisa kugadzira hydrogen bonds kwakasimbiswa. Kunyura kwakasimba kwepamusoro kwakaonekwa pa 1180,628 cm-1, iyo isina kuratidzwa mune infrared spectroscopy ye cellulose. Chekutanga chaive chimiro chekunyura pamusoro pes=o chisungo, nepo chekupedzisira chaive chimiro chekunyura chepamusoro che s=o chisungo. Zvinoenderana nekuongorora kuri pamusoro, sulfonic acid boka riripo pane molecular cheni ye cellulose mushure mekuita etherification.

2.2 Pesvedzero yemamiriro ekuita pane SBC kuita

Zvinogona kuonekwa kubva muhukama huri pakati pemaitiro ekuita uye zvimiro zveSBC kuti tembiricha, nguva yekuita uye reshiyo yezvinhu zvinokanganisa zvimiro zvezvakagadzirwa. Kunyungudika kwezvigadzirwa zveSBC kunotariswa nehurefu hwenguva inodiwa kuti 1g chigadzirwa chinyunguduke zvachose mu100mL yakasvibiswa mvura patembiricha yekamuri; Muyedzo yekudzikisa mvura yedhaka, SBC yemukati ndeye 1.0% yesamende uremu. Mukuwedzera, sezvo cellulose inonyanya kuumbwa neanhydroglucose unit (AGU), huwandu hweselulosi hunoverengwa seAGU apo reactant ratio inoverengwa. Kuenzaniswa neSBCl ~ SBC5, SBC6 ine yakaderera intrinsic viscosity uye yakakwira sarufa yemukati, uye mwero wekudzikisa mvura yedhaka i11.2%. Hunhu viscosity yeSBC inogona kuratidza yakaenzana molecular mass. High characteristic viscosity inoratidza kuti yakaenzana molecular mass yakakura. Zvisinei, panguva ino, viscosity yeaqueous solution ine chiyero chakafanana ichawedzera, uye kusununguka kwekufamba kwema macromolecules kuchave kwakaganhurirwa, izvo zvisingakodzeri kushambadza kwayo pamusoro pezvimedu zvesimende, zvichikanganisa kutamba kwemvura. kuderedza kupararira kushanda kweSBC. Iyo sulfur yemukati yeSBC yakakwira, zvichiratidza kuti butyl sulfonate substitution degree yakakwira, SBC molecular chain inotakura nhamba yekuchaja, uye simende particles surface effect yakasimba, saka kupararira kwayo kwesimende zvidimbu zvakare kwakasimba.

Mu etherification ye cellulose, kuitira kuvandudza dhigirii reetherification uye mhando yechigadzirwa, nzira yeakawanda alkalization etherification inowanzoshandiswa. SBC7 uye SBC8 ndizvo zvigadzirwa zvinowanikwa nekudzokororwa alkalization etherification ye1 uye 2 nguva, zvichiteerana. Zviripachena, hunhu hwavo hunoonekwa hwakaderera uye sarufa yemukati yakakwira, iyo yekupedzisira solubility yemvura yakanaka, kuderedzwa kwemvura kwesamende dhaka kunogona kusvika 14.8% uye 16.5%, zvichiteerana. Naizvozvo, mubvunzo dzinotevera, SBC6, SBC7 uye SBC8 dzinoshandiswa sezvinhu zvekutsvagisa kukurukura nezvemashandisiro azvo mumashandisirwo esimende nedhaka.

2.3 Kupesvedzera kweSBC pazvinhu zvesimende

2.3.1 Kufurira kweSBC pakuyerera kwesamende paste

Kupesvedzera curve yemvura inodzikisa agent yemukati pane fluidity yesamende paste. SNF is naphthalene series superplasticizer. Iyo inogona kuoneka kubva pakupesvedzera curve yezviri mukati memvura inodzikisa agent pane fluidity ye simenti paste, kana zviri mukati SBC8 zviri pasi pe1.0%, fluidity ye simenti paste zvishoma nezvishoma inowedzera nekuwedzera kwezviri mukati, uye mhedzisiro. yakafanana neiyo SNF. Kana izvo zvirimo zvinodarika 1.0%, kukura kweiyo fluidity ye slurry zvishoma nezvishoma kunonoka, uye curve inopinda munzvimbo yepuratifomu. Zvinogona kutariswa kuti iyo yakazara yemukati yeSBC8 inenge 1.0%. SBC6 uye SBC7 zvakare vaive nemaitiro akafanana kune SBC8, asi yavo saturation yemukati yaive yakakwira zvakanyanya kupfuura SBC8, uye dhigirii rekuvandudza rekuchenesa slurry fluidity rakanga risina kukwirira seSBC8. Nekudaro, iyo yakazara yemukati yeSNF inenge 0.7% ~ 0.8%. Apo zvinyorwa zveSNF zvinoramba zvichiwedzera, kunyunguduka kwe slurry kunoramba kuchiwedzera, asi maererano nemhete yekubuda ropa, zvinogona kugumiswa kuti kuwedzera panguva ino kunokonzerwa nekuparadzaniswa kwemvura inobuda nesamende slurry. Mukupedzisa, kunyange zvazvo zvinyorwa zveSBC zvakakwirira kudarika zveSNF, hapasati pave pasina kubuda ropa kuri pachena kana zviri muSBC zvinodarika zvinyorwa zvayo zvakawanda. Naizvozvo, zvinogona kutanga kutongwa kuti SBC ine mhedzisiro yekudzikisa mvura uye zvakare ine kumwe kuchengetwa kwemvura, iyo yakasiyana neSNF. Basa iri rinoda kuwedzera kudzidzwa.

Zvinogona kuonekwa kubva kune hukama pakati pemvura yesamende paste ine 1.0% yemvura-inoderedza ejenti yemukati uye nguva iyo kurasikirwa kwemvura kwesamende paste yakasanganiswa neSBC kudiki kwazvo mukati me120min, kunyanya SBC6, iyo yekutanga fluidity inongoita 200mm. , uye kurasikirwa kwemvura kuri pasi pe20%. Kurasika kwewarp kwe slurry fluidity kwaive muhurongwa hwe SNF>SBC8>SBC7>SBC6. Zvidzidzo zvakaratidza kuti naphthalene superplasticizer inonyanya kunyudzwa pamusoro pezvimedu zvesimende nendege simba rinodzinga. Nekufambira mberi kwe hydration, iyo yakasara mvura inodzikisa agent mamorekuru mune slurry inodzikiswa, kuitira kuti adsorbed inoderedza ejenti mamorekuru emvura pamusoro pemasimende masimende anoderedzwawo zvishoma nezvishoma. Kudzikisira pakati pezvimedu kwakadzikira, uye zvimedu zvesimende zvinoburitsa kusimba kwemuviri, izvo zvinoratidza kudzikira kwekuyerera kwenet slurry. Naizvozvo, kuyerera kurasikirwa kwe simende slurry yakasanganiswa ne naphthalene superplasticizer yakakura. Nekudaro, mazhinji naphthalene akateedzana emvura ekudzikisa maajenti anoshandiswa muinjiniya akasanganiswa zvakanaka kuti avandudze chirema ichi. Saka, maererano nekuchengetedza hupfumi, SBC yakakwirira kune SNF.

2.3.2 Pesvedzero yezvinogoneka uye yekuseta nguva yenamira yesamende

Mushure mekuwedzera mvura yekudzikisa mumiriri kune simende musanganiswa, masimende adsorbed emvura inodzikisa ejenti mamorekuru, saka iyo inogona kuitika yemagetsi zvimiro zvesimende zvimedu zvinogona kuchinjwa kubva kune yakanaka kuenda kune yakaipa, uye kukosha kwese kunowedzera zviri pachena. Iko kukosha kwakakwana kwechikamu chinogona kuita simenti yakasanganiswa neSNF yakakwirira kudarika yeSBC. Panguva imwecheteyo, nguva yekuisa simende yakasanganiswa neSBC yakawedzerwa kune madhigirii akasiyana-siyana kana ichienzaniswa nemuenzaniso usina chinhu, uye nguva yekuisa yakanga iri muhurongwa hweSBC6> SBC7> SBC8 kubva kure kusvika kupfupi. Zvinogona kuonekwa kuti nekuderera kweSBC hunhu hwekuona viscosity uye kuwedzera kwesarufa yemukati, nguva yekumisikidza simende paste inopfupikiswa zvishoma nezvishoma. Izvi zvinodaro nekuti SBC ndeye polypolysaccharide zvinobva kune polypolysaccharide, uye kune akawanda hydroxyl mapoka pane molecular cheni, ine madhigirii akasiyana ekudzoreredza maitiro pane hydration reaction yePortland simende. Kune angangoita mana marudzi ekudzoreredza ejenti meshini, uye kudzoreredza mashandiro eSBC akaenzana seanotevera: Mu alkaline medium ye simenti hydration, iyo hydroxyl boka uye yemahara Ca2 + inoumba isina kugadzikana yakaoma, kuitira kuti kusungirirwa kweCa2 10 muchikamu chemvura. inodzikira, asi zvakare inogona kuve yakashongedzerwa pamusoro pemasimende uye zvigadzirwa zve hydration pamusoro pe 02- kuti igadzire mabhondi ehydrogen, uye mamwe mapoka ehydroxyl nemamorekuru emvura kuburikidza nehydrogen bond association, kuitira kuti pamusoro pemasimende zvimedu zvigadzire chikamu che yakagadzikana yakagadziriswa mvura firimu. Nokudaro, iyo hydration process ye simenti inodziviswa. Nekudaro, iyo nhamba yemapoka ehydroxyl mucheni yeSBC ine akasiyana sulfuri zvirimo zvakasiyana, saka pesvedzero yavo pane simende hydration process inofanira kunge yakasiyana.

2.3.3 dhaka rekudzikisa mvura mwero uye kuyedza simba

Sezvo kuita kwedhaka kuchigona kuratidza kushanda kwekongiri kusvika pamwero wakati, bepa iri rinonyanya kudzidza nezvekuita kwedhaka rakasanganiswa neSBC. Kushandiswa kwemvura kwedhaka kwakagadziridzwa zvichienderana nechiyero chekuyedza kuderedzwa kwemvura yedhaka, kuitira kuti dhaka sampuli yekuwedzera yasvika (180 ± 5) mm, uye 40 mm × 40 mlTl × 160 mill mienzaniso yakagadzirirwa kuyedza compressive. simba rezera rimwe nerimwe. Kuenzaniswa nemuenzaniso usina chinhu pasina mugadziri wekudzikisa mvura, kusimba kwedhaka zvienzaniso neajenti yekudzikisa mvura muzera rega rega rakavandudzwa mumadhigirii akasiyana. Simba rekumanikidzika rezvienzaniso doped ne1.0% SNF yakawedzera ne46%, 35% uye 20% maererano ne3, 7 uye 28 mazuva. Kufurira kweSBC6, SBC7 uye SBC8 pasimba rekumanikidza redhaka hakuna kufanana. Simba redhaka rakasanganiswa neSBC6 rinowedzera zvishoma pazera rega rega, uye simba redhaka pa3 d, 7 d uye 28d rinowedzera ne15%, 3% uye 2% maererano. Simba rekumanikidzika redhaka rakasanganiswa neSBC8 rakawedzera zvikuru, uye simba rayo pa3, 7 uye 28 mazuva akawedzera ne 61%, 45% uye 18%, zvichiteerana, zvichiratidza kuti SBC8 ine simba rekudzikisa mvura uye kusimbisa simba padhaka resimende.

2.3.4 Kupesvedzera kweSBC molecular structure properties

Yakasanganiswa neongororo iri pamusoro pamusoro pesimba reSBC pane simende paste uye dhaka, hazvina kuoma kuwana kuti mamolecular chimiro cheSBC, senge hunhu hunoonekwa (hune hukama nehuremu hwayo hwemamorekuru, general hunhu viscosity yakakwira, hukama hwayo. molecular huremu hwakakwirira), sulfur content (inoenderana nehuwandu hwekutsiviwa kweakasimba hydrophilic mapoka pane molecular chain, high sulfur content is high degree of substitution, And vice versa) inosarudza kushanda kweSBC. Kana zvirimo zveSBC8 zvine yakaderera intrinsic viscosity uye yakakwira sarufa yemukati yakadzikira, inogona kuve nesimba rekuparadzira kugona kuisa simende zvidimbu, uye saturation yemukati zvakare yakadzikira, ingangoita 1.0%. Kuwedzerwa kwekugadzika nguva yesamende paste ipfupi. Simba rekumanikidza redhaka rine mvura yakafanana rinowedzera zviri pachena pazera rega rega. Zvakadaro, SBC6 ine high intrinsic viscosity uye yakaderera sarufa content ine diki fluidity kana zvirimo zvakaderera. Nekudaro, kana zvirimo zvawedzerwa kusvika pa1.5%, kugona kwayo kwekuparadzira simende zvimedu kunowedzerawo. Nekudaro, iyo nguva yekumisikidza yakachena slurry yakawedzera nguva, iyo inoratidza maitiro ekunonoka kumisa. Kuvandudzwa kwedhaka rekumanikidza simba pasi pemakore akasiyana kunogumira. Kazhinji, SBC iri nani pane SNF mukuchengetedza dhaka fluidity.

3. Mhedziso

1. Cellulose ine dhigirii yepolymerization yakaenzana yakagadzirwa kubva kune cellulose, iyo yakagadziriswa ne 1,4 monobutyl sulfonolactone mushure meNaOH alkalization, uye ipapo mvura-soluble butyl sulfonolactone yakagadzirwa. Iyo yakakwana yekuita mamiriro echigadzirwa ndeaya anotevera: mutsara (Na0H); Na(AGU); n(BS) -2.5:1.0:1.7, reaction time was 4.5h, reaction tembiricha yaive 75℃. Kudzokororwa alkalization uye etherification inogona kuderedza hunhu viscosity uye kuwedzera sarufa yemukati yechigadzirwa.

2. SBC ine hunhu hwakakodzera viscosity uye sulfur content inogona kuvandudza zvakanyanya kuyerera kwe simende slurry uye kunatsiridza kurasikirwa kwemvura. Kana mwero wekudzikisa mvura wedhaka unosvika 16.5%, simba rekumanikidza redhaka remuenzaniso pazera rega rega rinowedzera zviri pachena.

3. Kushandiswa kweSBC sechinhu chinoderedza mvura kunoratidza kumwe kunonoka. Pasi pemamiriro ehunhu hwakakodzera viscosity, zvinokwanisika kuwana yakakwira yekudzikisa mvura mumiriri nekuwedzera sarufa yemukati uye kuderedza kudzoreredza degree. Tichitarisa kune akakodzera mwero wepasirese wekongiri admixtures, SBC inotarisirwa kuve mumiriri wekudzikisa mvura ane kukosha kwekushandisa, kudzoreredza mumiriri wekudzikisa mvura, kudzoreredza yakanyanya kunaka yekudzikisa mvura mumiriri, uye kunyange yakanyanya kunaka yekudzikisa mvura.