Iyo HPMC mhinduro

1, chii chinonyanya kushandiswa kwehydroxypropyl methyl cellulose (HPMC)?

Mhinduro :HPMC inoshandiswa zvakanyanya mukuvaka, machira, marezeni ekugadzira, ceramics, mushonga, chikafu, machira, kurima, zvizorwa, fodya uye mamwe maindasitiri.HPMC inogona kukamurwa kuita: giredhi rekuvaka, giredhi rekudya uye giredhi rekurapa zvinoenderana nekushandiswa.Parizvino kugadzirwa kumba kunowanzo nhanho yekuvaka, padanho rekuvaka, huwandu hweputty hupfu hwakakura kwazvo, inenge 90% inoshandiswa kuita putty poda, imwe yese inoshandiswa kugadzira simende dhaka uye glue.

2, hydroxypropyl methyl cellulose (HPMC) yakakamurwa kuita akati wandei marudzi, ndeupi musiyano uripo pakati pekushandiswa kwayo?

Mhinduro :HPMC inogona kukamurwa kuva pakarepo uye inopisa soluble, pakarepo zvigadzirwa, mumvura inotonhora nokukurumidza yakapararira, yakanyangarika mumvura, panguva ino mvura haina viscosity, nokuti HPMC inongopararira mumvura, hapana kuparara kwechokwadi.Inenge maminetsi maviri, viscosity yemvura inowedzera zvishoma nezvishoma, ichigadzira yakajeka viscous colloid.Heat soluble products, mumvura inotonhora agglomeration, inogona kunge iri mumvura inopisa, inokurumidza kupararira, inonyangarika mumvura inopisa, kusvikira tembiricha yadonha kune imwe tembiricha, viscosity inooneka zvishoma nezvishoma, kusvika pakuumbwa kwepachena viscous colloid.Kupisa soluble type inogona kungoshandiswa muputty poda uye dhaka, mune yemvura glue uye yekupotera, inogona kuoneka agglomeration phenomenon, haigone kushandiswa.Instant dissolve modhi, chiyero chekushandisa chakakura zvishoma, mukufinhwa nehupfu yemwana uye dhaka, uye mune yemvura glue uye coating, zvese zvinogona kushandiswa, hazvina kana taboo.

3, hydroxypropyl methyl cellulose (HPMC) nzira dzekubvisa dzine idzo?

- mhinduro: nzira yekumisa mvura inopisa: nekuti HPMC haina kunyungudika mumvura inopisa, saka yekutanga HPMC inogona kuparadzirwa zvakaenzana mumvura inopisa, uye nekukasira kunyungudika pakutonhora, nzira mbiri dzakajairwa dzinotsanangurwa seizvi:

1) Zadza mudziyo nemvura inopisa yakawanda sezvaunoda uye upise kusvika pa70 ℃.Hydroxypropyl methyl cellulose inowedzerwa zvishoma nezvishoma pasi pekuita zvishoma nezvishoma, uye HPMC inoyangarara pamusoro pemvura, uye zvishoma nezvishoma inoumba slurry, iyo inotonhorera pasi pekukurudzira.

2) Wedzera 1/3 kana 2/3 yehuwandu hunodiwa hwemvura mumudziyo uye kupisa kusvika 70 ℃.Kuparadzira HPMC maererano nzira 1) kugadzirira inopisa mvura slurry;Zvadaro wobva wawedzera mvura inotonhora yakasara kumvura inopisa slurry uye inotonhorera musanganiswa mushure mokukurudzira.

Powder kusanganisa nzira: HPMC hupfu uye nhamba huru yezvimwe zvinhu zvehupfu, zvakasanganiswa zvakakwana ne blender, wobva wawedzera mvura kuti inyunguduke, panguva ino HPMC inogona kunyunguduka, uye kwete agglomerate, nokuti kona imwe neimwe diki, zvishoma chete HPMC upfu, mvura. ichabva yanyungudika pakarepo.- Putty poda uye vagadziri vedhaka vanoshandisa nzira iyi.[Hydroxypropyl methyl cellulose (HPMC) inoshandiswa seyakakora mumiririri uye mvura inochengeta mumiriri muputty poda dhaka.

4, maitiro ekuona mhando yehydroxypropyl methyl cellulose (HPMC) iri nyore uye intuitive?

Mhinduro : (1) kuchena: kunyange kuchena hakugone kuona kana HPMC yakanaka, uye kana yakawedzerwa mukugadzirwa kwechichena, ichakanganisa kunaka kwayo.Zvisinei, zvigadzirwa zvakawanda zvakanaka zvine kuchena kwakanaka.(2) kunaka :HPMC kunaka kunowanzoita 80 mesh uye 100 mesh,120 chinangwa zvishoma, Hebei HPMC kazhinji 80 mesh, iyo yakatsetseka kutsetseka, kazhinji kutaura, zviri nani.(3) transmittance: iyo hydroxypropyl methyl cellulose (HPMC) mumvura, kuumbwa kweiyo yakajeka colloid, ona iyo transmittance, iyo yakakura iyo transmittance iri nani, izvo zvisinganyunguriki zvinhu mukati zvishoma.Mafambisirwo ereactor yakatwasuka kazhinji akanaka, uye iya yakachinjika reactor yakashata, asi hazvireve kuti mhando yekugadzirwa kweyakamira yakatwasuka iri nani pane iya yakachinjika reactor.Pane zvinhu zvakawanda zvekusarudza kunaka kwechigadzirwa.(4) Hurukuro: iyo yakakura chikamu, iyo inorema ndiyo iri nani.Kupfuura chikuru, nekuti mukati mehydroxyl propyl base yemukati yakakwira kazhinji, hydroxyl propyl base yemukati yakakwira, chengetedza mvura kuti ide zvirinani.

5, hydroxypropyl methyl cellulose (HPMC) viscosity inonyanya kukodzera?

- mhinduro: kufinhwa nehupfu hwemwana zvakanaka kazhinji zviuru zana, imwe yakareba yezvinodiwa mudhaka, vanoda 150 zviuru kugona kushandisa.Uyezve, HPMC ibasa rakakosha rekuchengetedza mvura, rinoteverwa nekukora.Mune putty powder, chero bedzi mvura yekuchengetedza zvakanaka, viscosity yakaderera (7-80 zviuru), zvinogonekawo, hongu, iyo viscosity yakakura, kuchengetwa kwemvura kuri nani, apo viscosity inopfuura kupfuura. 100 zviuru, viscosity yekuchengetedza mvura haisi yakawanda.

6, hydroxypropyl methyl cellulose (HPMC) ndeapi makuru ehunyanzvi zviratidzo?.

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.

7, 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.

8, HPMC mukushandiswa kweputty powder, basa guru, kana kuitika kwemakemikari?

Mhinduro: HPMC mune putty poda, 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 kuti putty poda iome zvishoma nezvishoma, yekubatsira grey calcium mukuita kwekuita kwemvura.Kuvaka: cellulose lubrication, inogona kuita putty poda ine kuvaka kwakanaka.HPMC haitore chikamu mune chero chemakemikari maitiro, asi inongotora basa rekutsigira.Putty poda nemvura, pamadziro, ikemikari yekuita, nekuda kwechizvarwa chezvinhu zvitsva, rusvingo rweputty poda pasi kubva pamadziro, pasi kuva upfu, uye zvino shandisa, kwete zvakanaka, nokuti yakagadzira chinhu chitsva. (calcium carbonate).Mushonga mukuru wegrey calcium powder musanganiswa weCa(OH)2,CaO uye shoma shoma yeCaCO3,CaO+H2O=Ca(OH)2 — Ca(OH)2+CO2=CaCO3↓+H2O Gray calcium mu mvura nemhepo pasi pekuita kwe CO2, calcium carbonate, uye HPMC chete mvura, inobatsira grey calcium zviri nani kuita, zvayo haina kutora chikamu mune chero maitiro.

9.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.

10. Chii chine hukama nekupisa kwegel kwehydroxypropyl methyl cellulose?

- Mhinduro: Iyo tembiricha yegel yeHPMC ine hukama neiyo methoxyl yemukati, iyo yakadzika iyo methoxyl yemukati ↓, iyo yakakwirira tembiricha yegel.

11, putty poda poda uye HPMC hapana hukama?

Mhinduro: putty powder drop powder kunyanya uye ash calcium quality ine hukama hukuru, uye HPMC haina hukama hwakanyanya.Iyo yakaderera calcium ye grey calcium uye iyo isina kufanira chikamu cheCaO uye Ca (OH) 2 mugrey calcium inokonzeresa kudonha kwehupfu.Kana pane hukama hushoma neHPMC, ipapo HPMC kuchengetedza mvura yakashata, ichaitawo hupfu.

12, hydroxypropyl methyl cellulose mvura inotonhora inonyungudika uye inopisa inonyungudika mukugadzirwa kwechii musiyano?

– 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.

13, hydroxypropyl methyl cellulose (HPMC) kunhuwa kuri sei?

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

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

- mhinduro: kufinhwa nekushandiswa kwehupfu hwemwana: zvinodiwa zvakaderera, viscosity 100 zviuru, ok, zvakakosha kuchengetedza mvura kuti ive pedyo.Mortar application: yepamusoro zvinodiwa, yakakwirira viscosity zvinodiwa, 150 zviuru kuti zvive nani.Glue application: kudiwa kwezvigadzirwa zvekukurumidza, high viscosity.

15. Chii chinonzi hydroxypropyl methyl cellulose?

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

16.HPMC mukushandiswa kweputty powder, putty powder bubble chii chikonzero?

Mhinduro: HPMC mune putty poda, 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.

17. 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 yehydroxypropyl methyl cellulose, inonatswa nedonje mushure mekurapa alkali, ine propylene oxide uye chloromethane se etherifying agent, kuburikidza neyakatevedzana maitiro 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.

18. Chii chinofanira kutariswa mukushandiswa kunoshanda kwehukama 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 inowedzera, uye kana ichikwesha, kunzwa kunenge kuchirema.

Medium viscosity :75000-100000 inonyanya kushandiswa putty.

Chikonzero: Kuchengetwa kwemvura kwakanaka.

High viscosity: 150000-200000 inonyanya kushandiswa polystyrene particle insulation mortar rubber powder 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 cellulose (75000-100000) kutsiva yepakati uye yakaderera viscosity cellulose (20000-40000) kuderedza huwandu. yekuwedzera.