Hydroxypropyl methylcellseni ibintu bisanzwe bibaho ether, bidafite ingaruka kumubiri wumuntu. Ariko, ibikoresho fatizo byimbeba na HPMC bakoresha muruganda bose barahura, kuko ibi bizagira ingaruka zumukungugu, nabandi ntibangiza.
HydroxyPropyl Methylcellse ntabwo ari uburozi. Cellulose ifatwa nkibikorwa ukoresheje fibre isanzwe binyuze muri Alkali Fusion, igisubizo cyo gushinga, gukaraba, gusya, gusya nibindi bikorwa. Ntabwo bizahungabanya ubuzima bwabantu.
HydroxyPropyl Methyl Cellulose, uzwi kandi nka hypromellose na hydroxypropyl methyl, ikozwe ukoresheje selile nziza cyane hamwe nibikoresho byibanze muburyo bwa alkaline.
Synthesis ya hydroxypropyl methylcellse: Ipamba inoze ivurwa na Lye kuri 35-40 ℃ ku isaha yamenetse, kandi igezenaho, kandi gusaza fibre ya alkali. Mu ntera isabwa. Shira fibre ya alkali muri kattle yabayeho, ongeraho ibyatsi bya proplene na methyl chloride ikurikiranye, kandi bikarushaho kumurika kuri 50-80 ℃ kuri 5h, nigitutu cyo hejuru ni hafi 1.8Ma. Noneho ongeramo umubare wa Hydrochloric Acide na Acide oxalic kugirango woge ibikoresho mumazi ashyushye kuri 90 ° C kugirango wongere ingano nubunini. Kutagira umwuma. Swish kutabogama. Iyo amazi akubiye mubikoresho ari munsi ya 60%, akama hamwe numugezi wumuyaga ushyushye kuri 130 ° C kugera kubiri munsi ya 5%.
HPMC yakozwe nuburyo bworoshye bukoresha toluene na isopropanol nkigisubizo. Niba byogejwe cyane, bizaba bifite impumuro ntoya. Iki nikibazo cyo gukaraba, kidahindura imikoreshereze cyangwa ikibazo icyo aricyo cyose.
Hypromellose ni ipamba itunganijwe idakunze guterwa n'amazi kugira ngo abone selile ya alkaline, hanyuma itaboroga, yogejwe, yumye, kandi yamenetse kugira ngo abone ibicuruzwa byarangiye. Bibi cyane kandi binuka, bityo abakoresha barashobora kuyikoresha muburyo buhamye.
HydroxyPropyl Methylcellse igomba kwitondera ibintu bikurikira muri porogaramu:
Mugihe cyifu yifu, hydroxypropyl methylcellse gusa igira ingaruka zishyigikira, kandi ntabwo yitabira imiti iyo ari yo yose. Ifu yo guswera yongeyeho n'amazi ashyire kurukuta, nikintu cyimiti. Kubera imiterere yibintu bishya, ifu yivunzu kurukuta ikurwa kurukuta no hasi muri ifu kugirango ikore ibintu bishya. HydroxyPropyl Methylcellse gusa igumana amazi kandi ifasha graycium kumvikane neza, ariko ntabwo yitabira igisubizo icyo ari cyo cyose.
HydroxyPropyl Methyl Celllose HPMC ntabwo yitabira imiti iyo ari yo yose, ahubwo ifasha gusa. Ongeraho amazi kuri Lowder ifu hanyuma ubishyire kurukuta, ni reaction yimiti. Kubera imiterere yibintu bishya, ifu ya mud kurukuta ikurwa kurukuta no hasi mu ifu, hanyuma ntibishoboka, kuko ibintu bishya byashizweho ns. Ibice byingenzi byifu ya GrayAl
H2O = ca (oh) 2-ca (OH) 2 CO2 = Caco3 ↓ H2O
Calcium yimbeba itanga ibindi bintu munsi yamazi na CO2 mu kirere, mugihe HPMC igumana amazi kandi ifasha amazi gusa kandi ifasha gradicium kugirango habeho igisubizo cyiza. Ntabwo yitabira igisubizo icyo ari cyo cyose.
Hydroxypropyl methyl selile ifite uburyo butandukanye. Mubuzima bwa buri munsi, ibicuruzwa byinshi ntibitandukanijwe nibikorwa byo gukora. Noneho, mu nganda zitandukanye, ni izihe ngaruka za hydroxypropyl methylcellse, nzagusobanurira, kugirango ubashe kubuza nabi ikoresha nabi mugihe wunguka ubumenyi.
Mbere ya byose, mu nganda zubwubatsi, irashobora gufatwa nkumuti ucika hamwe numukozi ugumana amazi. Mortar Mortar irasobanutse, rero linter yose yumye dukoresha ifite uruhare. Byongeye kandi, mu bikoresho by'ubwubatsi nka gypsum mbisi, plaster, hamwe n'ifu y'ivunzu, irashobora gukoreshwa nka binder, itagura igihe cyo kubagwa, ahubwo ikangira igihe cyo gusiga gusa, ahubwo ituma irangi rikomeye. Muri marble, ibihangano bya ceramic, imitako ya plastike ya plastike, irashobora gukoreshwa nkigikoresho cyongereye, nibindi birashobora kuvugwa ko hydroxypropyl methyl methyl methys yacyo mubikoresho byo kubaka.
Mu zindi nganda, nk'inyamanswa no gukora ibibuga by'ibumba, birashobora gukoreshwa nk'ahantu ho gukora ibicuruzwa by'inyamanswa n'amashanyarazi; Mu nganda za Lacquer hamwe no gucapa ink, birashobora gukoreshwa nkifu irekuye, Thickener, Stabilizer, ndetse niyo ishobora guhuzwa na sociere cyangwa amazi meza mu gukora ibishushanyo mbonera bya plastike ya moleculand , kimwe na softeners, abakozi ba Mold barekuye, lubriring, nibindi .; Mu gukora chloride ya polyviny, ifatwa nkifu irekuye.
Ibicuruzwa bikozwe muri hydroxyPropyl methylcellse bikoreshwa cyane mubyiza byimbuto n'imboga, imiti, uruhu rwinyamanswa ninganda. Nibyiza kandi bidafite uburozi, ntibikazakara cyane kumubiri wurubuga rwabantu inkamu no kuruhu, kandi birashobora no gukoreshwa nkibiribwa. Ariko, mubihe nyabyo, umukungugu wacyo urashobora gutera umwanda mu kirere, kandi bitagirira akamaro kubungabunga uruhu kubitandukanya kuva mu muriro kugirango wirinde guturika.
kugumana amazi
HydroxyPropyl Methylcellse yo kubaka yirinda gukoresha amazi menshi kurenga, kandi amazi agomba kubikwa muri plaster bishoboka mugihe cyigihe gypsim yashizweho rwose. Uyu mutungo wihariye witwa Gusupa amazi kandi ugereranyije neza viscosiya rya hydroxypropyl methylcelliulose igisubizo cyakoreshejwe muri plaster. Isumbabyorono yo gukemura, uburambe bwo kugumana amazi.
Kurwanya
MISARER hamwe nibintu byihariye byo kurwanya ubudacogora birashobora gukoreshwa hamwe no guhiga hamwe no kunyeganyega, bisobanura ko Myiriza ubwayo idahindura igitsina cyayo, bitabaye ibyo bizanyerera mugihe iyubakwa ritangiye.
Mugabanye viccosity no koroshya kubaka
Nyuma yo kongeramo ibiryo bitandukanye byubaka-byihariye bya methylcellse ibicuruzwa, Green GPSum Plaster hamwe nimyumvire ya virusire yoroheje. Iyo bifatwa nkicyiciro cyo hasi kandi cyoroshye cyamazi yamashanyarazi-hydroxypropyl methylcellse ikoreshwa, urwego rwabasura rugabanuka kandi kubaka biroroshye. Ariko, kugumana amazi ya hydroxyPropyl methylcellse kugirango ubwubatsi buke-bwo kubaka intege nke, kandi birakenewe kongera amafaranga yo kwiyongera.
Igipimo cya Plastiki
Kubwinshi bwa minisiteri yumye, birakomeye mubukungu kugirango utange ubunini bwa minisiteri, bushobora kugerwaho wongeyeho amazi make nibituba. Ariko, niba umubare w'amazi n'ibituba ari maremare, imbaraga zirahungabana.
Igihe cyo kohereza: APR-26-2024