HPMC mune Skim jasi

Hydroxypropyl methyl cellulose (HPMC) viscosity yeSkim jasi?

- mhinduro: Skim jasi rakanaka rinowanzo HPMC 100000cps, imwe yakareba yezvinodiwa mudhaka, inoda 150000cps kugona kushandisa. Uyezve, HPMC ndiyo inonyanya kukosha basa rekuchengetedza mvura, rinoteverwa nekukora. MuSkim coat , chero bedzi kuchengetwa kwemvura kwakanaka, viscosity yakaderera (7-80000), zvinogonekawo, hongu, viscosity yakakura, kuchengetwa kwemvura kuri nani, apo viscosity inopfuura 100. chiuru, iyo viscosity yekuchengetedza mvura haina zvakawanda.

Ndeapi makuru tekinoroji zviratidzo zvehydroxypropyl methyl cellulose (HPMC)?

Mhinduro: Hydroxypropyl content uye viscosity, vazhinji vashandisi vane hanya nezviratidzo zviviri izvi. Hydroxypropyl yemukati yakakwira, kuchengetedza mvura kunowanzo kuve nani. Viscosity, kuchengetwa kwemvura, hama (asi kwete mhedziso) zvakare iri nani, uye viscosity, simende dhaka zviri nani kushandisa zvimwe.

Hydroxypropyl methyl cellulose (HPMC) ndezvipi zvakakosha zvigadzirwa?

Mhinduro: hydroxypropyl methyl cellulose (HPMC) main raw materials: yakanatswa donje, chloromethane, propylene oxide, zvimwe mbishi, piritsi alkali, asidhi, toluene, isopropyl doro uye zvichingodaro.

HPMC mune Skim jasi mukushandisa, iro basa guru, ingave kemikari?

Mhinduro: HPMC mune Skim jasi, thickening, mvura uye kuvaka mabasa matatu. Kukora: cellulose inogona kukwiziridzwa kuti imiswe, kuitira kuti mhinduro irambe iine yunifomu kumusoro uye pasi basa rekurembera-kuyerera. Kuchengeta mvura: ita Skim jasi riome zvishoma nezvishoma, yekubatsira grey calcium mukuita kwekuita kwemvura. Kuvaka: cellulose lubrication, inogona kuita Skim jasi rine kuvaka kwakanaka. HPMC haitore chikamu mune chero chemakemikari maitiro, asi inongotora basa rekutsigira. Skim jasi nemvura, pamadziro, ikemikari yekuita, nekuda kwekuzvarwa kwezvinhu zvitsva, madziro eSkim jasi pasi kubva pamadziro, pasi kuita upfu, uye wozoshandisa, kwete zvakanaka, nekuti yakagadzira chinhu chitsva. (calcium carbonate). Zvikamu zvikuru zve grey calcium powder ndezvi: Ca (OH) 2, CaO uye zvishoma zveCaCO3 musanganiswa, CaO+H2O=Ca(OH)2 - Ca(OH)2+CO2=CaCO3↓+H2O grey calcium mumvura. uye mhepo pasi pechiito che CO2, kuumbwa kwe calcium carbonate, uye HPMC chete mvura, yekubatsira grey karusiyamu zviri nani kuita, zvayo hazvina kubatanidzwa mune chero maitiro.

HPMC isiri-ionic cellulose ether, saka chii chisiri-ionic?

A: Kazhinji kutaura, asiri-ion zvinhu zvisingaite ionise mumvura. Ionization ndiko kuparadzaniswa kwe electrolyte kuita mahara-inofamba anochajwa ions mune chaiyo solvent, semvura kana doro. Semuenzaniso, munyu watinodya zuva rega rega - sodium chloride (NaCl) inonyunguduka mumvura uye ionize kuti ibudise mahara-inofamba sodium ions (Na+) ine chaji yakanaka uye chloride ions (Cl) ine charger isina kunaka. Kureva kuti, HPMC mumvura haiparadzanise mumaoni anochajiswa, asi iripo semamorekuru.

Chii chinonzi gelation tembiricha yehydroxypropyl methyl cellulose ine chekuita nayo?

Mhinduro: Iyo tembiricha yegel yeHPMC ine hukama neiyo methoxyl yemukati. Iyo yakaderera iyo methoxyl yemukati, iyo yakakwirira tembiricha yegel.

Skim jasi poda uye HPMC hapana hukama?

Mhinduro: Skim jasi rekudonha poda kunyanya uye madota e calcium quality ine hukama hukuru, uye HPMC haina hukama hukuru. Iyo yakaderera calcium ye grey calcium uye iyo isina kufanira chikamu cheCaO uye Ca (OH) 2 mugrey calcium inokonzeresa kudonha kwehupfu. Kana pane hukama neHPMC, ipapo kusachengetedzwa kwemvura kwakashata kweHPMC kuchaitawo kurasikirwa kweupfu.

Ndeupi musiyano uripo pakati pemvura inotonhora inonyungudika uye inopisa soluble hydroxypropyl methyl cellulose mukugadzira maitiro?

– Mhinduro :HPMC mvura inotonhora instant solution type is after glyoxal surface treatment, yakaiswa mumvura inotonhora inokurumidza kuparadzirwa, asi isina kunyatsonyungudika, viscosity kumusoro, inonyungudika. Iyo thermosoluble type haina kubatwa kumeso ne glyoxal. Huwandu hweglyoxal hwakakura, kupararira kunokurumidza, asi viscosity inononoka, chiyero chidiki, pane zvinopesana.

Chii nezve hydroxypropyl methyl cellulose (HPMC) inonhuhwirira?

- Mhinduro: HPMC inogadzirwa nenzira yekunyungudutsa inogadzirwa ne toluene uye isopropyl doro. Kana kugeza kusina kunaka, pachava nekusarira kuravira.

Kushandiswa kwakasiyana, nzira yekusarudza yakakodzera hydroxypropyl methyl cellulose (HPMC)?

- mhinduro: kufinhwa nekushandiswa kwehupfu hwemwana: zvinodiwa zvakaderera, viscosity 100000, ok, zvakakosha kuchengetedza mvura kuti ive pedyo. Mortar application: yepamusoro zvinodiwa, yakakwirira viscosity zvinodiwa, 150000 kuti ive nani. Glue application: kudiwa kwezvigadzirwa zvekukurumidza, high viscosity.

Nderipi rimwe zita rehydroxypropyl methyl cellulose?

– MHINDURO: Hydroxypropyl MethylCellulose, Yakapfupikiswa seHPMC kana MHPC, kana Hydroxypropyl Methyl Cellulose; Cellulose hydroxypropyl methyl ether; Hypromellose, Cellulose, 2-hydroxypropyl methyl Cellulose ether.

HPMC mukushandiswa kweSkim jasi, chii chikonzero Skim jasi bubble?

Mhinduro: HPMC mune Skim jasi, thickening, mvura uye kuvaka mabasa matatu. Kusatora chikamu mune chero maitiro. Zvinokonzera mabhuru: 1, mvura yakawandisa. 2, iyo pasi haina kuoma, pamusoro peiyo scraping layer, zvakare iri nyore blister.

Mudhuri wemukati nekunze Skim jasi formula?

- mhinduro: mukati memadziro Skim jasi : calcium 800KG grey calcium 150KG (starch ether, pure green, peng runtu, citric acid, polyacrylamide inogona kuwedzerwa zvakakodzera)

Kunze kwemadziro Skim jasi : simende 350KG karusiyamu 500KG quartz jecha 150KG latex upfu 8-12kg cellulose ether 3KG starch ether 0.5kg huni fiber 2KG

Ndeupi musiyano uripo pakati peHPMC neMC?

– Mhinduro :MC is methyl cellulose, iyo inogadzirwa ne cellulose ether kuburikidza nekutevedzana kwemaitiro ne methane chloride se etherifying agent mushure mekunatswa donje ragadziriswa nealkali. Kazhinji, dhigirii rekutsiva i1.6 ~ 2.0, uye kunyungudika kunosiyana nedanho rekutsiva. Ndeyenonionic cellulose ether.

(1) Kuchengetwa kwemvura kwemethyl cellulose kunoenderana nehuwandu hwayo hwekuwedzera, viscosity, particle fineness uye dissolution rate. Kazhinji wedzera huwandu hukuru, hunyoro hudiki, viscosity, mwero wekuchengetedza mvura wakakwira. Pakati pavo, chiyero chekuwedzera chine simba guru pakuchengetedza mvura, uye viscosity haina kuenzana nekuchengetedza mvura. Mwero wekunyunguduka unonyanya kuenderana nedhigirii rekugadzirisa uye chidimbu chidiki che cellulose particles. Mune ari pamusoro akati wandei cellulose ethers, methyl cellulose uye hydroxypropyl methyl cellulose chiyero chekuchengetedza mvura chakakwira.

(2) Methyl cellulose inonyungudika mumvura inotonhora, iyo yakaoma kunyungudika mumvura inopisa. Mhinduro yaro ine aqueous yakagadzikana mukati me pH = 3 ~ 12. Iine kuwirirana kwakanaka ne starch, guanidine chingamu uye akawanda ma surfactants. Gelation inoitika kana tembiricha yasvika tembiricha yegelation.

(3) Shanduko yekushisa ichakanganisa zvakanyanya mwero wekuchengetedza mvura yemethyl cellulose. Kazhinji, kukwirisa tembiricha, kunowedzera kuchengetedzeka kwemvura. Kana tembiricha yedhaka ichipfuura 40 ℃, kuchengetwa kwemvura kwemethyl cellulose kuchave kwakanyanya kuipa, izvo zvinokanganisa zvakanyanya kuvakwa kwedhaka.

(4) Methyl cellulose ine simba riri pachena pakuvaka uye kunamatira kwedhaka. "Adhesion" pano inoreva kunamatira kunonzwikwa nemushandi pakati pechishandiso nemadziro substrate, ndiko kuti shear resistance yedhaka. Kunamatira kwakakura, kupikisa kweshear kwedhaka kwakakura, simba rinodiwa nevashandi mukugadzirisa kushandiswa kwakakurawo, uye kuvakwa kwedhaka kwakashata. Mune cellulose ether zvigadzirwa, kunamatira kwemethyl cellulose kuri pamwero wepakati.

HPMC hydroxypropyl methyl cellulose, inonatswa nedonje mushure mekurapwa kwealkali, ine propylene oxide uye chloromethane se etherifying agent, kuburikidza nenhevedzano yemaitiro uye yakagadzirwa neasiri-ionic cellulose yakasanganiswa ether. Dhigirii rekutsiva kazhinji 1.2 ~ 2.0. Zvimiro zvayo zvinosiyana nechikamu che methoxy uye hydroxypropyl zvemukati.

(1) Hydroxypropyl methyl cellulose inonyungudika nyore nyore mumvura inotonhora, iyo yakaoma kunyungudika mumvura inopisa. Nekudaro, tembiricha yayo yegelation mumvura inopisa zviri pachena yakakwira kupfuura iyo yemethyl cellulose. Iyo solubility yemethyl cellulose mumvura inotonhora yakagadziridzwawo zvakanyanya.

(2) Iyo viscosity yehydroxypropyl methyl cellulose ine hukama nehuremu hwayo hwemamorekuru, uye iyo yakakwira huremu hwemamorekuru, iyo inokwirisa viscosity. Tembiricha inokanganisawo viscosity. Viscosity inoderera sezvo tembiricha inowedzera. Asi iyo viscosity yakakwirira tembiricha mhedzisiro yakaderera pane iyo yemethyl cellulose. Mushonga wacho wakagadzikana kana wakachengetwa pakushambidzika kwekamuri.

(3) Hydroxypropyl methyl cellulose yakagadzikana kune asidhi uye chigadziko, uye mhinduro yayo ine aqueous yakagadzikana muhuwandu hwepH = 2 ~ 12. Caustic soda uye mvura yeraimu haina mhedzisiro pazvinhu zvayo, asi alkali inogona kukurumidza kunyungudika kwayo uye kuvandudza viscosity. Hydroxypropyl methyl cellulose yakagadzikana kune yakawanda munyu, asi kana iyo yemunyu mhinduro yakakwira, viscosity yehydroxypropyl methyl cellulose mhinduro inowedzera kuwedzera.

(4) Kuchengetwa kwemvura kwehydroxypropyl methyl cellulose kunoenderana nedosi uye viscosity, uye mwero wekuchengetedza mvura wehydroxypropyl methyl cellulose wakakwira kupfuura wemethyl cellulose pachiyero chimwe chete.

(5) Hydroxypropyl methyl cellulose inogona kusanganiswa nemvura-soluble polymer compounds kuti ive yunifomu, yakakwirira viscosity solution. Zvakadai se polyvinyl doro, starch ether, yemiriwo glue uye zvichingodaro.

(6) Kunamatira kwehydroxypropyl methyl cellulose kukuvaka kwedhaka kwakakwira kupfuura iyo yemethyl cellulose.

(7) Hydroxypropyl methyl cellulose ine nani enzyme kuramba pane methyl cellulose, uye mhinduro yayo enzyme yekukanganisa mukana yakaderera pane iyo yemethyl cellulose.

Chii chinofanira kutariswa mune inoshanda application nezve hukama pakati peviscosity uye tembiricha yeHPMC?

Mhinduro: THE viscosity yeHPMC inopindirana nekushisa, kureva kuti, viscosity inowedzera nekuderera kwekushisa. Kana tichitaura nezve viscosity yechigadzirwa, tiri kutaura nezve viscosity ye2% yechigadzirwa mumvura pa20 degrees Celsius.

Mukushanda kwekushanda, munzvimbo dzine kusiyana kukuru kwekushisa pakati pezhizha nechando, zvinofanira kuonekwa kuti zvinokurudzirwa kushandisa zvishoma zvishoma viscosity munguva yechando, iyo inobatsira pakuvaka. Kana zvisina kudaro, kana kutonhora kwakaderera, viscosity ye cellulose ichawedzera, uye kana ichichera, kunzwa kunenge kuchirema.

Medium viscosity :75000-100000 inonyanya kushandiswa kuisa putty

Chikonzero: Kuchengetwa kwemvura kwakanaka

High viscosity: HPMC 150000-200000 inonyanya kushandiswa polystyrene particle insulation mortar glue poda zvinhu uye vitrified beads insulation dhaka.

Chikonzero: high viscosity, dhaka haisi nyore kudonha, kuyerera kunorembera, kunatsiridza kuvaka.

Asi kazhinji kutaura, iyo yakakwira viscosity, zviri nani kuchengetedza mvura, mafekitori mazhinji akaoma edhaka, tichifunga nezve mutengo, shandisa yepakati viscosity HPMC cellulose (75000-100000) kutsiva yepakati uye yakaderera viscosity HPMC cellulose (20000-40000) kuderedza. huwandu hwekuwedzera.