HPMC mujasi risina mafuta

Kusviba kweHydroxypropyl methyl cellulose (HPMC) kweSkim coat?

– mhinduro: Skim coat yakanaka kazhinji HPMC 100000cps, imwe yakareba pane inodiwa mumota, inoda kugona kushandisa 150000cps. Uyezve, HPMC ndiyo basa rakakosha pakuchengetedza mvura, ichiteverwa nekukora. MuSkim coat, chero bedzi kuchengetedza mvura kwakanaka, viscosity yakaderera (7-80000), zvinogonekawo, zvechokwadi, viscosity yakakura, kuchengetedza mvura kuri nani, kana viscosity iri kupfuura 100, viscosity yekuchengetwa kwemvura haisi yakawanda.

Ndezvipi zviratidzo zvikuru zve hydroxypropyl methyl cellulose (HPMC)?

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.

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.

HPMC mujasi risina mafuta mukushandiswa, basa guru, kana makemikari?

Mhinduro: HPMC muSkim coat, kukora, mvura uye kuvaka mabasa matatu. Kukora: cellulose inogona kukora kusvika yamira, kuitira kuti mhinduro irambe yakafanana kumusoro nekudzika basa rekudzivirira kuyerera. Kuchengetwa kwemvura: ita kuti Skim coat iome zvishoma nezvishoma, calcium inobatsira mukuita kwekuita kwemvura. Kuvakwa: cellulose lubrication, inogona kuita kuti Skim coat ive nekuvakwa kwakanaka. HPMC haibatanidzi mune chero maitiro emakemikari, asi inongotamba basa rekutsigira. Skim coat nemvura, pamadziro, ikemikari reaction, nekuda kwekugadzirwa kwezvinhu zvitsva, madziro eSkim coat anodzika kubva pamadziro, oitwa upfu, uye ozoshandisa, kwete zvakanaka, nekuti agadzira chinhu chitsva (calcium carbonate). Zvikamu zvikuru zveupfu hwekarusiyamu yegrey ndeizvi: Ca(OH)2, CaO uye musanganiswa mudiki weCaCO3, CaO+H2O=Ca(OH)2 – Ca(OH)2+CO2=CaCO3↓+H2O grey calcium mumvura nemhepo pasi pekushanda kweCO2, kuumbwa kwecalcium carbonate, uye HPMC chete mvura, assistant grey calcium better reaction, yayo pachayo haina kutora chikamu mune chero reaction.

HPMC i-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.

Chii chinoenderana nekupisa kwe gelation kwehydroxypropyl methyl cellulose?

Mhinduro: Kupisa kwejeli kweHPMC kwakabatana nehuwandu hwemethoxyl. Kana huwandu hwemethoxyl hwakaderera, tembiricha yejeli yakakwira.

Upfu hwemajasi asina mafuta uye HPMC hapana hukama here?

Mhinduro: Upfu hwemadonhwe eganda rakachekwa uye hunhu hwecalcium yemumadota hune hukama hwakakura, uye HPMC haina hukama hwakakura. Kuderera kwecalcium mu grey calcium uye huwandu husina kukodzera hweCaO neCa(OH)2 mu grey calcium zvinokonzera kudonha kwehupfu. Kana paine hukama neHPMC, saka kuchengetwa kwemvura kweHPMC kuchaitawo kuti hupfu hurasikirwe.

Musiyano uripo pakati pehydroxypropyl methyl cellulose inonyungudika mumvura inotonhora nehydroxypropyl methyl cellulose inonyungudika inopisa pakugadzirwa kwayo ndeupi?

– 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.

Chii chinonhuhwirira pamusoro pehydroxypropyl methyl cellulose (HPMC)?

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

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

– mhinduro: svinai nekushandisa upfu hwemwana: chinodiwa hachina kunaka, viscosity 100000, zvakanaka, zvakakosha kuchengetedza mvura kuti ive pedyo. Kuisa mortar: zvinodiwa zvakanyanya, viscosity yakawanda, 150000 kuti ive nani. Kuisa guruu: kudiwa kwezvigadzirwa zvinokurumidza, viscosity yakawanda.

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 pakushandisa skim coat, chikonzero nei skim coat bubble iri?

Mhinduro: HPMC mu skim coat, kukora, mvura uye kuvaka kwemabasa matatu. Kusatora chikamu mune chero reaction. Zvinokonzera mabubbles: 1, mvura yakawandisa. 2, pasi harina kuoma, pamusoro pe scraping layer, zvakare nyore kuputira.

Rusvingo rwemukati nerwekunze. Fomura yejasi risina kusimba?

– mhinduro: madziro emukati jira remukati : calcium 800KG calcium grey 150KG (starch ether, pure green, peng runtu, citric acid, polyacrylamide inogona kuwedzerwa zvakakodzera)

Kumadziro ekunze Kupfeka kwakasviba: simende 350KG calcium 500KG jecha re quartz 150KG upfu hwe latex 8-12kg cellulose ether 3KG starch ether 0.5kg huni fiber 2KG

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 hydroxypropyl 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.

Chii chinofanira kutariswa mukushandiswa kwechinhu ichi nezvehukama huripo pakati pe viscosity netembiricha yeHPMC?

Mhinduro: KUVHUWA kweHPMC kunoenderana nekupisa, kureva kuti, kuvhuwa kunowedzera nekudzikira kwekupisa. Kana tichitaura nezvekuvhuwa kwechigadzirwa, tiri kutaura nezvekuvhuwa kwe2% 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

Kupenya kwakanyanya: HPMC 150000-200000 inonyanya kushandiswa pakugadzira glue powder material yepolystyrene particle insulation mortar 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 emota yakaoma, tichifunga nezvemutengo, anoshandisa viscosity yepakati nepakati yeHPMC cellulose (75000-100000) kutsiva viscosity yepakati nepasi yeHPMC cellulose (20000-40000) kuderedza huwandu hwekuwedzera.