Hydroxypruppropyl methylcellosechinhu chaicho chinoitika cellulose ether, chisiri chakaipa kumuviri wemunhu. Nekudaro, zvigadzirwa zvezvinyorwa zvekotoni uye Hpmc zvakashandiswa mufekitori zvese zviri kutarisana, nekuti izvi zvichave nemhedzisiro yeguruva, uye vamwe havana kukuvadza.
Hydroxypruppropyl methylcellose haina-yepfu. Cellulose inoonekwa seyakakodzera uye inogadziriswa nekushandisa zvisikwa zvinoitika kubva kuAlkali Fusion, yekupa mhinduro, kugeza, kuomesa uye mamwe maitiro. Haingagumi hutano hwevanhu.
HydroxyPropyl methyl cellel Cellelose uye cellulose hydroxpropyl Ethyl Ether, inogadzirwa nekushandisa yakanyanya kuchena cellulose
Iyo synthesis ye hydroxyprupyl methylcellose: Iyo cotton celllose inobatwa neLyoka pahafu yeawa, iyo cellylose, uye kuchembera kunoitwa ku 35 ℃ kuita iyo alkali fiber yakafanana polenti. Mukati meiyo inodiwa renji. Isa iyo alkali fiber muEthery Kettle, wedzera profylexe oxide uye methyl chloride mukuteerana, uye ℃ for 50-80 ℃ for 5h, nekumusoro kwekumusoro ndeye 1.8mpa. Wobva wawedzera huwandu hwakakodzera hwe hydrochloric acid uye oxalic acid kuti ugeze zvinhu mumvura inopisa pa 90 ° c kuwedzera saizi uye vhoriyamu. Dehydrate ne centrifugation. Swash yekumusanganisa. Kana izvo zvemvura mune zvinyorwa zvacho zvisingasviki 60%, chiomesa nerwizi rwemhepo inopisa pa13 ° C kusvika kune yakaderera pane 5%.
Iyo HPMC yakagadzirwa neiyo solvent nzira inoshandisa toluene uye isopropanol seiyo solvent. Kana ikashambwa yakaipa kwazvo, ichave nekunhuhwirira kushoma kwasara. Iri idambudziko rekusuka maitiro, risingakanganise kushandiswa kana chero dambudziko.
Hyplemllose yakanatswa machira anokonzerwa nemvura kuti awane alkaline Celleose, uyezve vatorikeya vechikadzi, toluene uye ishepropanol yekuchinja, uye inoshambwa, yaoma, uye yakapwanywa kuti awane zvigadzirwa zvapera. Zvakashata uye zvinonhuwira, saka vashandisi vanogona kuishandisa mune yakagadzikana mamiriro.
Hydroxypruppropyl methylcellose inofanira kuteerera kune zvinotevera zvinhu muchishandiswa:
Mukuita kwematope poda, hydroxyprupyl methylcellose chete anotsigira mhedzisiro, uye haipindirani mune chero yemakemikari maitiro. Iyo poda poda inowedzerwa nemvura uye inoisa pamadziro, inoitwa nemakemikari. Nekuda kwekuumbwa kwezvinhu zvitsva, iyo dope poda pamadziro inobviswa kubva pamadziro uye pasi kuita hupfu kuti ugadzire zvinhu zvitsva. HydroxyPropyl methylcellose chete chete inochengetedza mvura uye inobatsira grey calcium kuti uve nemhinduro iri nani, asi haina kutora chikamu mune chero mhinduro.
HydroxyPropyl methyl cellel cellulose hpmc haipindiri mune chero maitiro emakemikari, asi anobatsira chete. Wedzera mvura kune iyo matope poda uye uiise pamadziro, iko kwemakemikari maitiro. Nekuda kwekuumbwa kwezvinhu zvitsva, iwo matope emadziro ari pamadziro anobviswa kubva pamadziro uye pasi muupfu, uye ipapo hazvigoneke, nekuti zvinhu zvitsva zvakaumbwa ns. Izvo Zvikuru zveGrey Crey Calcium POWDER IZVO: CA (OH) 2, musanganiswa weCAO uye chidiki cheCaco3, Cao
H2O = CA (Ah) 2-CA (OH) 2 CO2 = CACO3 ↓ H2O
Grey Calcium inoburitsa zvimwe zvinhu pasi pemhedzisiro yemvura uye co2 mumhepo, nepo HPMC chete inochengetedza mvura uye inobatsira grey calcium kuti uve nemhinduro iri nani. Izvo hazvipindirani mune chero mhinduro.
Hydroxyprirpropyl methyl cellelose ine huwandu hwakawanda hwekushandisa. Muhupenyu hwezuva nezuva, zvigadzirwa zvakawanda hazviratidzike kubva pakugadzira maitiro. Zvadaro, mune maindasitiri akasiyana, mhedzisiro yehydroxyprupropropyl methylcellose, ini ndichakutsanangurira iwe, kuti iwe ugone kudzivirira kushandiswa zvisirizvo uchiwana zivo.
Chekutanga pane zvese, mune yekuvaka indasitiri, inogona kutariswa seyedzorwe uye inochengetedza mvura-yekuchengetedza mumiririri. Iyo motsi dhiraivhi inorima, saka ese akaoma akaoma atinoshandisa ane kutora chikamu chayo. Mukuwedzera, mune zvekuvaka zvakadai sechibharo, uye poda poda, inogona kushandiswa seyakagadzirwa, iyo isingori nguva yekuvhiya, asi zvakare inoita kuti pendi inyore. Mune marble, anoshambidza mataira emapurasitiki ekushongedza, inogona kushandiswa seyakavhiringidza enhancal, etc. inogona kutaurwa kuti hydroxyprosll methyl cellows ndiyo yakakurumbira kuwanda mukuvaka kwayo.
Mune mamwe maindasitiri, senge porcelain uye kugadzira pottery, inogona kushandiswa sekunamatira kwekugadzira porcelain uye zvigadzirwa zve pottery; Muindasitiri yeLafquer uye ink kudhinda, inogona kushandiswa seyakasununguka powder, stabilizer, uye inogona kushandiswa seyekupenda seyekutanga mugadziri yemanyorerwe emanyoreti emapuranga , pamwe chete nevanopfava, kuumbwa kwakaburitswa, maLubriants, nezvimwewo.; Muchigadzirwa chePolyvinyl chloride, chinoonekwa sechinhu chakasununguka.
Zvigadzirwa zvakagadzirwa nehydroxyprupyl methylcellose inoshandiswa zvakanyanya mukutsva kwechibereko chemichero nemiriwo, mushonga, maindasitiri emhuka uye maindasitiri emhuka. Yakachengeteka uye isina chepfu, isingatsamwisi kuimba yemuviri yemuviri mucous membudzi uye matehwe, uye inogona kushandiswa seyakawedzera chikafu. Nekudaro, mumamiriro ezvinhu epanhamba enyaya, guruva rayo rinogona kukonzera kusvibiswa kwemhepo, uye hakubatsiri pakugadziriswa kweganda kuti vazviparadzanise kubva mumoto kuti udzivise kuputika.
Kuchengeta mvura
Iyo yakakosha hydroxyropropyl methylcellose yekuvakwa inodzivirira kushandiswa kwakanyanya neiyo substrate, uye mvura inofanira kuchengetwa muplaster yakawanda sezvinobvira panguva iyo gypsum yakaiswa chose. Iyi yakakosha midziyo inonzi kuchengetwa kwemvura uye yakananga kuenderana neiyo viscosity yeiyo hydroxypropyl methylcellose solution inoshandiswa pakuvaka muplaster. Iyo yepamusoro iyo yekugadzirisa viscossity, yakakwira chiitiko chemvura chichengeteke.
Anti-sagging
Iyo motwe ine zvakakosha zvivakwa zveAnti-sagging inogona kuiswa pamwe neyekukanda kubhururuka pasina kusekerera, izvo zvinoreva zvakare kuti dhaka harizoshandure kuvaka murume wayo, neimwe nzira ichatsvedza kana kuvakwa kwatanga.
Deredza viscosity uye kufambisa kuvakwa
Mushure mekuwedzera kwakasiyana-siyana hydroxypruppropyl methylcellulose zvigadzirwa, girini gypsum plaster ine zvinyoro-nyoro viscous mafungiro anogona kugadzirwa. Kana ichinge yavezwa yakakodzera uye yakaderera-vcosity grade yekuvaka-yakananga hydroxyprupproproproplesellcellose inoshandiswa, iyo degree re viscosity yakaderedzwa uye kuvakwa kunova nyore. Nekudaro, kuchengetwa kwemvura kwehydroxypropropyl methylcellose yekuvaka yakaderera-viscosslity yekuvaka haina kusimba, uye inodikanwa kuwedzera huwandu hwekuwedzera.
Mari yepurasitiki yakaunganidzwa
Kune huwandu hwakatemerwa hwakaoma, hupfumi hwakawanda kuburitsa yakakwira yakanyorova ruzha rukuru, runogona kuwanikwa nekuwedzera mvura shoma uye mabhuru. Nekudaro, kana huwandu hwemvura uye mabhubhu akareba, simba rikasvibiswa.
Kutumira Nguva: Kubvumbi 26-2024