Mhinduro yeHPMC

1, hydroxypropyl methyl cellulose (HPMC) inonyanya kushandiswa sei?

Mhinduro:HPMCInoshandiswa zvakanyanya muzvinhu zvekuvaka, machira ekuputira, maresini ekugadzira, zviumbwa zvedongo, mishonga, chikafu, machira, kurima, zvizoro, fodya nedzimwe nzvimbo. HPMC inogona kukamurwa kuita: giredhi rekuvaka, giredhi rezvekudya uye giredhi rezvekurapa zvichienderana nekushandiswa. Parizvino, yakagadzirwa kumba inonyanya kushandiswa pakuvaka, padanho rekuvaka, huwandu hweputty powder hwakakura kwazvo, inenge 90% inoshandiswa kugadzira putty powder, yasara inoshandiswa kugadzira simende mortar neglue.

2, hydroxypropyl methyl cellulose (HPMC) yakakamurwa kuita mhando dzakasiyana-siyana, musiyano uripi pakati pekushandiswa kwayo?

Mhinduro: HPMC inogona kukamurwa kuita zvinhu zvinonyungudika nekukurumidza uye zvinopisa, zvigadzirwa zvinokurumidza, mumvura inotonhora zvinopararira nekukurumidza, zvinonyangarika mumvura, panguva ino mvura haina viscosity, nekuti HPMC inongopararira mumvura, hapana kunyungudika chaiko. Inenge maminetsi maviri, viscosity yemvura inowedzera zvishoma nezvishoma, ichigadzira colloid yakajeka ine viscous. Zvigadzirwa zvinonyungudika kupisa, mumvura inotonhora, zvinogona kunge zviri mumvura inopisa, zvinopararira nekukurumidza, zvinonyangarika mumvura inopisa, kusvika tembiricha yaderera kusvika kune imwe tembiricha, viscosity inooneka zvishoma nezvishoma, kusvika paumbwa colloid yakajeka ine viscous. Mhando inonyungudika kupisa inogona kushandiswa chete muputty powder nemortar, mu liquid glue necoating, inogona kuonekwa agglomeration phenomenon, haigone kushandiswa. Instant dissolve model, application scope yakafara zvishoma, in be bored with child powder and mortar, and in liquid glue and coating, zvese zvinogona kushandiswa, hazvina taboo.

3, nzira dzekunyungudutsa hydroxypropyl methyl cellulose (HPMC) dzine izvozvo?

– mhinduro: nzira yekunyungudutsa mvura inopisa: nekuti HPMC hainyungudutswi mumvura inopisa, saka HPMC yekutanga inogona kunyungudutswa zvakaenzana mumvura inopisa, yobva yanyungudutswa nekukurumidza pakutonhodza, nzira mbiri dzakajairika dzinotsanangurwa sedzinotevera:

1) Zadza mudziyo nemvura inopisa yaunoda woipisa kusvika pa70℃. Hydroxypropyl methyl cellulose inowedzerwa zvishoma nezvishoma uchikurunga zvishoma nezvishoma, uye HPMC inoyangarara pamusoro pemvura, uye zvishoma nezvishoma inoumba slurry, iyo inotonhodzwa uchikurunga.

2) Wedzera 1/3 kana 2/3 yehuwandu hwemvura hunodiwa mumudziyo woipisa kusvika 70℃. Paradzira HPMC zvichienderana nenzira 1) kugadzira slurry yemvura inopisa; Wobva wawedzera mvura inotonhora yasara muslurry yemvura inopisa woitonhodza mushure mekukurunga.

Nzira yekusanganisa upfu: Upfu hweHPMC nezvimwe zvinhu zvakawanda zvine upfu, zvakasanganiswa zvizere neblender, wobva waisa mvura kuti inyungudike, panguva ino HPMC inogona kunyungudika, uye kwete kuungana, nekuti kona imwe neimwe diki, hupfu hushoma hweHPMC chete, mvura inonyungudika pakarepo. – Vagadziri veputty powder nemortar vanoshandisa nzira iyi. [Hydroxypropyl methyl cellulose (HPMC) inoshandiswa sechinhu chinosimbisa uye chinochengetedza mvura mumortar yeputty powder.

4, nzira yekuziva kuti hydroxypropyl methyl cellulose (HPMC) ine mhando dzakasiyana uye dzinonzwisisika sei?

Mhinduro: (1) kuchena: kunyangwe kuchena kusingagone kuona kana HPMC yakanaka, uye kana ikaiswa mukugadzirwa kwayo, chinhu chinopisa, chichakanganisa mhando yayo. Zvisinei, zvigadzirwa zvakawanda zvakanaka zvine kuchena kwakanaka. (2) kuchena: HPMC kuchena kazhinji i 80 mesh uye 100 mesh, 120 chinangwa chishoma, Hebei HPMC kazhinji i 80 mesh, kupenya kwakanyanya, kazhinji kutaura, zviri nani. (3) kutumirwa: hydroxypropyl methyl cellulose (HPMC) mumvura, kuumbwa kwecolloid yakajeka, ona kutumirwa kwayo, kutumirwa kukuru kuri nani, zvinhu zvisinganyunguduke mukati zvishoma. Kutumirwa kwe vertical reactor kazhinji kwakanaka, uye kwe horizontal reactor kwakaipa, asi hazvirevi kuti mhando yekugadzira vertical reactor iri nani pane ye horizontal reactor. Pane zvinhu zvakawanda zvinosarudza mhando yechigadzirwa. (4) Kuwanda: kana chikamu chikuru, kurema kuri nani. Kupfuura chikuru, nekuti mukati me hydroxyl propyl base content yakakwira, hydroxyl propyl base content yakakwira, kudzivirira mvura kuti ive nani.

5, viscosity yehydroxypropyl methyl cellulose (HPMC) ndiyo yakakodzera zvakanyanya?

– mhinduro: kufinhwa neupfu hwemwana zvakanaka kazhinji 100, imwe yakareba pane inodiwa mumota, inoda 150,000 kugona kushandisa. Uyezve, HPMC ndiyo basa rakakosha pakuchengetedza mvura, ichiteverwa nekukora. Muupfu hweputty, chero bedzi kuchengetwa kwemvura kwakanaka, viscosity yakaderera (7-80,000), zvinogonekawo, zvechokwadi, viscosity yakakura, kuchengetwa kwemvura kuri nani, kana viscosity iri kupfuura 100, viscosity yekuchengetwa kwemvura haisi yakawanda.

6, hydroxypropyl methyl cellulose (HPMC) ndedzipi zviratidzo zvikuru zvehunyanzvi?

Mhinduro: Kuwanda kwehydroxypropyl uye viscosity, vashandisi vazhinji vane hanya nezviratidzo zviviri izvi. Kuwanda kwehydroxypropyl kwakakwira, kuchengetedza mvura kazhinji kuri nani. Viscosity, kuchengetedza mvura, hukama (asi kwete zvachose) zviri naniwo, uye viscosity, simende mortar zviri nani kushandisa zvimwe.

7, hydroxypropyl methyl cellulose (HPMC) ndezvipi zvinhu zvikuru zvekugadzira?

Mhinduro: hydroxypropyl methyl cellulose (HPMC) zvinhu zvikuru: donje rakanatswa, chloromethane, propylene oxide, zvimwe zvinhu zvisina kugadzirwa, tablet alkali, acid, toluene, isopropyl alcohol nezvimwewo.

8, HPMC mukushandisa putty powder, basa guru, kana kemisitiri ichiitika?

Mhinduro: HPMC mupudhi yeputty, kukora, mvura uye kuvaka mabasa matatu. Kukora: cellulose inogona kukora kusvika yamira, kuitira kuti mhinduro irambe yakafanana kumusoro nekudzika basa rekudzivirira kuyerera. Kuchengetwa kwemvura: kuita kuti putty powder iome zvishoma nezvishoma, assistant grey calcium mukuita kwekuita kwemvura. Kuvakwa: cellulose lubrication, inogona kuita kuti putty powder ive nekuvaka kwakanaka. HPMC haibatanidzi mune chero maitiro emakemikari, asi inongotamba basa rekutsigira. Putty powder nemvura, pamadziro, ikemikari reaction, nekuda kwekugadzirwa kwezvinhu zvitsva, madziro eputty powder anodzika kubva pamadziro, obva apwanywa kuita upfu, uye ozoshandisa, kwete zvakanaka, nekuti agadzira chinhu chitsva (calcium carbonate). Chinhu chikuru chinowanikwa muupfu hwekarusiyamu yegrey musanganiswa weCa(OH)2,CaO uye huwandu hushoma hweCaCO3,CaO+H2O=Ca(OH)2 — Ca(OH)2+CO2=CaCO3↓+H2O Karusiyamu yegrey mumvura nemhepo pasi pekushanda kweCO2, calcium carbonate, uye HPMC chete mvura, inobatsira grey calcium kuita zviri nani, yayo pachayo haina kutora chikamu mune chero reaction.

9.HPMC non-ionic cellulose ether, saka chii chinonzi non-ionic?

A: Kazhinji, ma non-ion zvinhu zvisingaite ioni mumvura. Ionization kupatsanurwa kwe electrolyte kuita ma free-moving charged ions mune chimwe chinhu chinonyungudutsa, senge mvura kana doro. Semuenzaniso, munyu watinodya zuva nezuva — sodium chloride (NaCl) inonyungudika mumvura uye inoite ionis kugadzira free-moving sodium ions (Na+) ine positive charge uye chloride ions (Cl) ine negative charge. Kureva kuti, HPMC mumvura haiparadzike kuita ma charged ions, asi iripo semamorekuru.

10. Chii chine chekuita nekupisa kwegel kwehydroxypropyl methyl cellulose?

– Mhinduro: Kupisa kwejeliHPMCine chekuita nehuwandu hwemethoxyl, kana huwandu hwemethoxyl hwakaderera ↓, tembiricha yegel yakakwira.

11, putty powder powder neHPMC hapana hukama?

Mhinduro: putty powder drop powder kunyanya uye ash calcium quality zvine hukama hwakakura, uye HPMC haina hukama hwakakura zvakanyanya. Kuderera kwecalcium mu grey calcium uye huwandu husina kukodzera hweCaO neCa(OH)2 mu grey calcium zvinokonzera kudonha kwehupfu. Kana paine hukama hushoma neHPMC, saka kuchengetwa kwemvura kweHPMC kwakashata, kunokonzerawo hupfu.

12, hydroxypropyl methyl cellulose inonyungudika mumvura inotonhora uye inopisa inonyungudika mukugadzirwa kwechinhu, musiyano uripi?

– Mhinduro: Rudzi rwemushonga wemvura inotonhora weHPMC inokurumidza kugadziriswa mushure mekugadzirisa pamusoro pemvura inotonhora, inoiswa mumvura inotonhora inopararira nekukurumidza, asi haina kunyungudika chaizvo, viscosity yakakwira, inonyungudika. Rudzi rwemushonga unonyungudika hauna kugadziriswa pamusoro ne glyoxal. Huwandu hwe glyoxal hwakakura, kupararira kwacho kunokurumidza, asi viscosity inononoka, huwandu hwacho hushoma, zvakasiyana.

13, kunhuhwirira kwehydroxypropyl methyl cellulose (HPMC) kuri sei?

– Mhinduro: HPMC inogadzirwa nenzira yekunyungudutsa inogadzirwa netoluene neisopropyl alcohol. Kana kusukwa kwayo kusina kunaka, pachava nekunaka kwasara.

14, mashandisirwo akasiyana, ungasarudza sei hydroxypropyl methyl cellulose (HPMC) yakakodzera?

– mhinduro: bhoikana nekushandisa upfu hwemwana: chinodiwa hachina kunaka, viscosity inosvika zviuru zana, zvakanaka, zvakakosha kuchengetedza mvura kuti ive pedyo. Kuisa mortar: zvinodiwa zvakanyanya, viscosity yakawanda, zviuru zana nemakumi mashanu kuti ive nani. Kuisa guruu: kudiwa kwezvigadzirwa zvinokurumidza, viscosity yakawanda.

15. Chii chinonzi zita rekuti 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 pakushandisa putty powder, putty powder bubble chikonzero chei?

Mhinduro: HPMC muupfu hweputty, kukora, mvura uye kuvaka kwemabasa matatu. Kusatora chikamu mune chero reaction. Zvinokonzera mabubbles: 1, mvura yakawandisa. 2, pasi harina kuoma, pamusoro pechikamu chekukwenya, zvakare nyore kuputira.

17. Musiyano uripo pakati peHPMC neMC ndeupi?

– Mhinduro: MC imethyl cellulose, inogadzirwa ne cellulose ether kuburikidza nekuita kwakasiyana-siyana ne methane chloride se etherifying agent mushure mekunge donje rakanatswa ragadziriswa ne alkali. Kazhinji, mwero wekutsiva i1.6~2.0, uye kunyunguduka kunosiyana zvichienderana nemwero wekutsiva. Inoshanda kune nonionic cellulose ether.

(1) Kuchengetwa kwemvura kwemethyl cellulose kunoenderana nehuwandu hwayo hwekuwedzera, viscosity, kupfava kwezvikamu uye mwero wekunyungudika. Kazhinji kuwedzera huwandu hwakawanda, kupfava kudiki, viscosity, mwero wekuchengetedza mvura wakakwira. Pakati pazvo, huwandu hwekuwedzera hune simba guru pakuchengetwa kwemvura, uye viscosity haina kuenzana nekuchengetwa kwemvura. Mwero wekunyungudika unonyanya kuenderana nedanho rekuchinja kwepamusoro uye kupfava kwezvikamu zve cellulose. Mune mamwe ma cellulose ethers ataurwa pamusoro apa, methyl cellulose uye hydroxypropyl methyl cellulose mwero wekuchengetedza mvura wakakwira.

(2) Methyl cellulose inonyungudika mumvura inotonhora, iyo inonetsa kunyungudika mumvura inopisa. Mvura yayo inogadzikana mukati me pH=3~12. Inoenderana zvakanaka ne starch, guanidine gum uye ma surfactants akawanda. Gelation inoitika kana tembiricha yasvika pa gelation tembiricha.

(3) Kuchinja kwetembiricha kuchakanganisa zvakanyanya mwero wekuchengetedza mvura yemethyl cellulose. Kazhinji, tembiricha yakakwira, kuchengetedza mvura kwakaipa. Kana tembiricha yemortar ikapfuura 40℃, kuchengetedza mvura yemethyl cellulose kuchanyanya kuipa, izvo zvinokanganisa zvakanyanya kugadzirwa kwemortar.

(4) Methyl cellulose ine simba riri pachena pakuvaka nekunamatira kwedhaka. "Kunamatira" pano zvinoreva kubatana kunoitwa nemushandi pakati pechishandiso nemadziro, kureva kuramba kunamatira kwedhaka. Kunamatira kwakakura, kuramba kunamatira kwedhaka kwakakura, simba rinodiwa nevashandi pakushandisa rakakurawo, uye kuvaka dhaka kwakashata. Muzvigadzirwa zve cellulose ether, kubatana kwemethyl cellulose kuri padanho riri pakati nepakati.

HPMC yehydroxypropyl methyl cellulose, inonatswa nedonje mushure mekugadziriswa kwealkali, nepropylene oxide nechloromethane semushonga we ether, kuburikidza nematanho akasiyana-siyana uye inogadzirwa ne non-ionic cellulose mixed ether. Dhigirii rekutsiva rinowanzova 1.2 ~ 2.0. Hunhu hwayo hunosiyana zvichienderana nehuwandu hwe methoxy ne hydroxypropyl.

(1) Hydroxypropyl methyl cellulose inonyungudika nyore nyore mumvura inotonhora, iyo inonetsa kunyungudika mumvura inopisa. Zvisinei, tembiricha yayo ye gelation mumvura inopisa yakakwira zviri pachena kupfuura yemethyl cellulose. Kunyungudika kwemethyl cellulose mumvura inotonhora kwakavandudzikawo zvakanyanya.

(2) Kuwanda kwe hydroxypropyl methyl cellulose kwakabatana nehuremu hwayo hwemamorekuru, uye huremu hwemamorekuru hwakakwira, ndiko kuwedzera kwehuremu. Tembiricha inokanganisawo kusimba. Kusimba kunoderera sezvo tembiricha ichiwedzera. Asi kusimba kwayo kusimba kwekupisa kwakanyanya kwakaderera pane kwe methyl cellulose. Mhinduro yacho inogara yakagadzikana kana yakachengetwa patembiricha yemumba.

(3) Hydroxypropyl methyl cellulose inogara yakasimba kusvika kune acid nebase, uye mvura yayo inogadzikana zvakanyanya pakati pe pH = 2 ~ 12. Caustic soda nemvura ye lime hazvina zvazvinobatsira pahunhu hwayo, asi alkali inogona kukurumidzisa kunyungudika kwayo uye kuwedzera viscosity. Hydroxypropyl methyl cellulose inogara yakasimba kusvika kune general salts, asi kana huwandu hwemunyu hwakakwira, viscosity ye hydroxypropyl methyl cellulose solution inowanzo kuwedzera.

(4) Kuchengetwa kwemvura kwehydroxypropyl methyl cellulose kunoenderana nechiyero chayo uye viscosity, uye chiyero chekuchengetedza mvura chehydroxypropyl methyl cellulose chakakwira kupfuura chemethyl cellulose pachiyero chimwe chete.

(5) Hydroxypropyl methyl cellulose inogona kusanganiswa nepolymer inonyungudika mumvura kuti ive mhinduro yakafanana, ine viscosity yakawanda. Zvakadai sepolyvinyl alcohol, starch ether, vegetable glue nezvimwewo.

(6) Kubatana kwehydroxypropyl methyl cellulose mukugadzirwa kwemortar kwakakwirira kupfuura kwemethyl cellulose.

(7) Hydroxypropyl methyl cellulose ine simba riri nani rekudzivirira ma enzymes kupfuura methyl cellulose, uye mukana wayo wekuparadza ma enzymes wakaderera pane we methyl cellulose.

18. Chii chinofanira kutariswa pakushandisa hukama huripo pakati pekusimba kwemuviri nekupisa kweHPMC?

Mhinduro: KUVHUMBUKA kweHPMCinoenderana zvakanyanya netembiricha, kureva kuti, viscosity inowedzera nekudzikira kwetembiricha. Patinotaura nezve viscosity yechigadzirwa, tiri kutaura nezve viscosity ye2% yechigadzirwa mumvura pa20 degrees Celsius.

Mukushanda kwayo, munzvimbo dzine musiyano mukuru wekupisa pakati pezhizha nechando, zvinofanira kucherechedzwa kuti zvinokurudzirwa kushandisa viscosity yakaderera munguva yechando, izvo zvinonyanya kubatsira pakuvaka. Zvikasadaro, kana tembiricha yakaderera, viscosity ye cellulose ichawedzera, uye kana ichikweshwa, kunzwa kwayo kuchave kwakasimba.

Viscosity yepakati: 75000-100000 inonyanya kushandiswa pakuisa putty.

Chikonzero: Kuchengeta mvura zvakanaka.

Viscosity yakakura:150000-200000 inonyanya kushandiswa pa polystyrene particle insulation mortar rabha upfu uye vitrified beads insulation mortar.

Chikonzero: kusviba kwakanyanya, dhaka harisi nyore kudonhedza, kuyerera kwaro kunorembera, kuvandudza kuvaka.

Asi kazhinji, kana viscosity yakakwira, kuchengetedza mvura kuri nani, saka mafekitori mazhinji edry mortar, tichifunga nezvemutengo, anoshandisa medium viscosity cellulose (75000-100000) kutsiva medium ne low viscosity cellulose (20000-40000) kuderedza huwandu hwekuwedzera.