Hydroxypruppropyl methylcellose rudzi rwe isiri-ionic cellulose yakasanganiswa ether. Kusiyana neImic methyl carboxymethyl cellevelose yakasanganiswa ether, hazviite nemitezo inorema. Nekuda kweiyo marodhi akasiyana ezvemukati uye hydroxyprusyl mukati mehydroxyprEpropyls uye yakaderera marudzi ezvekuita methyl cellyl. hydroxypruppropyl methyl cellelose. Nekudaro, mune yega yega, kunyangwe chete huwandu hushoma hwe hydroxpropropyl boka kana huwandu hwechishoma hwedhodhi zvirimo, pane misiyano mikuru mukushamisika mune organic solshics kana tembiricha yemvura mumvura.
(1) Solubility Properties yeHydroxyPropyl methylcellose
① Solubility yeHydroxyPropyl methylcellose mune mvura hydroxpropropylselsellose iri chaiyo methylcellose (methylylene oxide Nekudaro, nekuda kweiyo yakagadziridzwa hydroxyprupropropyl boka, tembiricha yayo yekupisa mumvura inopisa yakakwira zvakanyanya kupfuura iyo yemethyl cellulose. Semuenzaniso, iyo viscosity ye hydroxypropyl methylcellose Solution ine 2% nzira yezvinyorwa Zvemukati DS = 0.45 Kana ari solubility yayo mumvura, yakagadziridzwa kwazvo. Semuenzaniso, iyo purvitised hydroxypropyl methylcellose (granular chimiro 0,2 ~ 0.5mm pa20 ° C:
② Solubility yeHydroxyPropyl methylcellose mu organic inogadzirisa iyo solubility ye hydroxproproproproproproproproproproproproproproproproproproproproproproproproproproproprollose mu organic solhts iri nani pane iyo yemethylceulose. Methylcellose inoda kuve neiyo nzira yekutsiva degree re 2.1 zvigadzirwa zviri pamusoro, asi zvine hydroxyprosyl ms = 0.2 ~ 1.8 Thermos-plasticity uye mvura solubility. Izvo zvakare zvinyoro-nyoro muhukunini hydrocarbons yakadai se methylene chloride uye chloroform, uye organic solics yakadai seacetone, isopropanol uye diacetone doro. Iyo solubility mu organic sols iri nani pane kuseta kwemvura.
. Iyo yakayerwa pa20 ° C ine 2% mhinduro yemukati seyero. Iyo viscosity yechigadzirwa chimwe chete ichiwedzera nekuwedzera kwekuwedzera. Zvezvigadzirwa zvine uremu hwakasiyana-soro pamwero wakaenzana, icho chigadzirwa chine huremu hwakakura hwemanyorerwe ane yepamusoro yepamusoro. Hukama hwayo nekushisa hwakafanana neye methyl cellulose. Kana tembiricha ichisimuka, viscosity inotanga kudonha, asi kana ichisvika pane imwe tembiricha, iyo visikoka yakangoerekana yasimuka uye gelation inoitika. Tembiricha yegwenzi yezvigadzirwa zvepasi-zveviscossity yakakwira. yakakwira. Pope its Gel haina hukama chete neyekuona kwe ether, asi zvakare zvine hukama neyekuumbwa kweboka rechikwende uye hydroxypruppropyl boka mune ether uye saizi yehuwandu hwekutsiva. Izvo zvinofanirwa kucherechedzwa kuti hydroxyprupyl methylcellose zvakare pseudoplasticulassion, uye mhinduro kwayo yakagadzikana pamhepo tembiricha isina chero kushomeka kwesisitimu kunze kwekunge mukana wekusvibiswa kwe enzymatic.
. General Salts yakadai seChloride, Bromide, phomhate, nitrate, nezvimwe, etc. hazvizonyepedzeri kana zvakawedzerwa kumhinduro yayo. Nekudaro, kuwedzera kwemunyu kune imwe pesvedzero pakudziya kwekuwedzera kwemhinduro kwayo. Kana kushamwaridzana kwemunyu kunowedzera, tembiricha yeGel inodzikira. Kana musimboti wepazasi uri pasi peiyo floclogulation point, iyo visikopa yemhinduro inowanzowedzera kuwedzera. Naizvozvo, imwe huwandu hwemunyu hunowedzerwa, mukushandisa, zvinogona kuzadzisa zvinokanganisa zveupfumi. Naizvozvo, mune zvimwe zvekushandisa, zviri nani kushandisa musanganiswa we cellulose ether uye munyu pane kusvinura kwepamusoro kwe ether mhinduro yekuwana iyo isiriyo.
. Zvinogona kutsungirira huwandu hwakaenzana hwemwenje wekidhi, yakadai seyakagadzirwa acid, acidic acid, citric acid, phccinic acid, etcent acid, etcent acid ine mhedzisiro yekuderedza viscosity. Alkalis senge caustic soda, caustic potash uye lime mvura isina mhedzisiro pairi, asi inogona kuwedzera zvishoma kuwanda kwemhinduro, uyezve zvishoma nezvishoma kuderedza.
. Iyi polymer compound inosanganisira polyethyl, polyvinyl acetate, polysilicone, polymethylvinyl siloxane, hydroxytlyl cellulose, uye methyl cellose. Zvisikwa zvepamusoro zvinyoro-nyoro makambani akadai segamu, mhashu bhinzi gum, karaya gamu, nezvimwewo zvine chekuita nekugadziriswa kwayo. HydroxyPropyl methylcellose inogona zvakare kusanganiswa neAmannitol Ester kana Sorbitol Esid kana Hormitic Acid, uye maComnitol, uye aya maCoMNitol, uye aya mishonga yeHydroxproproprollose Plantics yeCellulose.
. Iyo Aldehydes inoita hydroxyprupyl methylcellose insolsellose inosanganisira formaldehyde, etccinic aldehdehyde, pakati peiyo Glyyoxal inokurumidza, saka Glyoxal inowanzoshandiswa semumiriri wekuyambuka muindasitiri kugadzirwa. Dosage yerudzi urwu rwekubatanidza-kuunganidza musicent ndeye 0.2% ~ 10% yehuwandu hweEther, chidimbu 7%, semuenzaniso, 3.3% ~ 6% yeGlyoxal ndiyo yakakodzera kwazvo. Kazhinji, tembiricha yekurapa iri 0 ~ 30 ℃, nguva iri 1 ~ 120min. Iyo crosslinking reaction inoda kuitiswa pasi pemamiriro ekunze. Kazhinji, iyo pH yemhinduro yakagadziridzwa kune anenge 2 ~ 6 nekuwedzera inorganic yakasimba acid kana organic carboxylic acid kune mhinduro, Iyo yakashandiswa acid ine hydrochloric acid, sulfuric acid, phosphic acid, acid acid kana acid acid kana acetic acid inopa zano, uye mafomu acid ndeye chaiyo. Iyo acid uye aldehyde inogona zvakare kuwedzerwa panguva imwe chete kuti ubvumire mhinduro yekubatanidza kuita kwemuchinjiko mukati meiyo inodiwa pH range. Kuita uku kunowanzoshandiswa mukupedzisira kurapwa maitiro mukugadzirira maitiro e cellulose. Mushure mekunge ma cellulose ether is insoluble, iri nyore kushandisa.
20 ~ 25 ℃ mvura yekugeza nekucheneswa. Kana chigadzirwa chiri mukushandisa, maAlkaline zvinhu zvinogona kuwedzerwa kune iyo mhinduro yechigadzirwa kuti gadzirise iyo pH yemhinduro yekuve alkaline, uye chigadzirwa chichavhiringidza mumhinduro nekukurumidza. Iyi nzira inoshandawo kune kurapwa kweiyo firimu mushure memaCellulose erth solution inogadzirwa mune yefirimu kuti iite iyo insuble firimu.
. yeboka rega rega paCellulose Chain haina kufanana, uye microorganisms inogona kuiswa pane isina kugadzirwa neyakagadziriswa Anhydroglucese Boka kuti riite mashuga, sehutachiona hwehutachiona. Naizvozvo, kana dhigirii rekutsiva kweCellulose dzinowedzera, kupikisa ku enzyematic kuumbwa kwe cellulose eteri kuchawedzerawo. Sekureva kwemishumo, pasi pemamiriro ezvinhu ekudzora, iyo hydrolysis mhedzisiro ye enzymy 1.7%. Inogona kuoneka kuti hydroxypruppropyl methylcellose ine yakasimba anti-enzyme kugona. Naizvozvo, akanakisa enzyme kurwisa hydroxypressl metdlcellose, akasanganiswa nekupararira kwayo kukuru, kusanzwisisika uye kushandiswa kwemvura, etc., uye kazhinji haadi kuwedzera kuchengetedza. Nekudaro, zvekuchengetedza kwenguva refu kwemhinduro kana kusvibiswa kubva kunze, vanodzivirira vanogona kuwedzerwa sekungwarira, uye sarudzo inogona kutsanangurwa maererano nezvinodiwa zvekupedzisira zvemhinduro. Phenylmercuric acetate uye manganse fluorospice anoshanda anochengetedza, asi ivo vese vane muchetura, kutarisa kunofanirwa kubhadharwa pakuvhiya. Kazhinji, 1 ~ 5mg ye phenylmercury acetate inogona kuwedzerwa kune mhinduro pane litita yemba.
. Yayo yemvura mhinduro kana organic solvent solution inobatanidzwa pabhiriyoni ndiro, uye inova isina ruvara uye yakajeka mushure mekuoma. Uye firimu rakaoma. Iyo ine yakanaka yekunyorova kupokana uye inoramba yakasimba pakupisa kwakanyanya. Kana hygroscopic plasticzezer inowedzerwa, macomputer ayo uye kuchinjika kunogona kuvandudzwa. Panyaya yekuvandudza kuchinjika, mapurasitiki akadai se glycerin uye sorbitol ndiyo yakakodzera kwazvo. Kazhinji, iyo yekugadzirisa mhinduro ndeye 2% ~ 3%, uye huwandu hweplasticzezer ndeye 10% ~ 20% ye cellulose ether. Kana zviri mukati mepapurasitiki zvakanyanyisa, Dollidal Dehydration Drinkage ichaitika mukunyorova kwakanyanya. Simba remafirimu refirimu rine plasticzer rakawedzerwa rakakura kupfuura iro pasina planticzezer, uye inowedzera nekuwedzera kwehuwandu hwakawedzerwa. Kana iri hygroscopicity yefirimu, inowedzerawo nekuwedzera kwehuwandu hweplasticzezer.
Kutumira Nguva: Jun-13-2023