xov xwm

Hydroxypropyl methyl cellulose yog dab tsi?

Hydroxypropyl methyl cellulose (HPMC), tseem hu ua hydroxypropyl methylcellulose, cellulose hydroxypropyl methyl ether, cellulose, 2-hydroxypropylmethyl ether, PROPYLENE GLYCOL ETHER OF METHYLCELLULOSE, CAS No. HPMC tuaj yeem muab faib ua qib tsev, qib zaub mov thiab qib tshuaj raws li nws siv. Nws yog dav siv hauv kev tsim kho, khoom noj khoom haus, tshuaj thiab tshuaj pleev ib ce, tshuaj niaj hnub thiab lwm yam lag luam.

Kev siv HPMC yog dab tsi?

Kev tsim kho kev lag luam

1. Masonry mortar
Txhim kho qhov adhesion rau lub masonry nto tuaj yeem txhim kho cov dej tuav, yog li txhim kho lub zog ntawm mortar, thiab txhim kho lubricity thiab plasticity los pab kev tsim kho. Kev tsim kho yooj yim txuag lub sijhawm thiab txhim kho kev siv nyiaj.
2. Gypsum khoom
Nws tuaj yeem ua kom ntev lub sijhawm ua haujlwm ntawm mortar thiab tsim kom muaj zog dua txhua yam thaum lub sij hawm solidification. Cov txheej txheej zoo yog tsim los ntawm kev tswj xyuas qhov sib xws ntawm mortar.
3. Cov xim pleev xim dej thiab cov xim tshem tawm
Nws tuaj yeem ncua lub txee lub neej los ntawm kev tiv thaiv cov nag lossis daus, thiab muaj kev sib raug zoo heev thiab kev ruaj ntseg lom. Nws qhov kev sib cais yog ceev thiab tsis yooj yim rau agglomerate, uas yuav pab tau kom yooj yim rau kev sib tov. Tsim cov yam ntxwv zoo, nrog rau qhov tsis tshua muaj tawg thiab zoo leveling, xyuas kom meej ntog zoo, thiab tiv thaiv cov xim sagging. Txhim kho cov viscosity ntawm cov xim pleev xim rau dej thiab cov organic hnyav xim tshem tawm, kom cov xim tshem tawm yuav tsis ntws tawm ntawm qhov chaw ua haujlwm.
4. Ceramic pobzeb nplaum
Cov khoom xyaw qhuav qhuav yog ib qho yooj yim sib tov thiab tsis agglomerate, txuag lub sij hawm ua hauj lwm vim hais tias lawv tau thov sai thiab zoo dua, txhim kho processability thiab txo nqi. Txhim kho tiling efficiency thiab muab cov adhesion zoo los ntawm kev ncua lub sijhawm txias.
5. Cov khoom siv hauv pem teb ntawm tus kheej
Nws muab viscosity thiab tuaj yeem siv los ua cov tshuaj tiv thaiv kab mob los pab txhim kho kev ua haujlwm ntawm flooring. Kev tswj dej tuav tuaj yeem txo cov kab nrib pleb thiab shrinkage.
6. Kev tsim cov pob zeb ua pob zeb
Nws txhim kho cov txheej txheem ntawm cov khoom extruded, muaj kev sib txuas siab zog thiab lubricity, thiab txhim kho lub zog ntub thiab adhesion ntawm cov ntawv extruded.
7. Phaj sib koom ua ke
Hydroxypropyl methyl cellulose muaj cov dej tuav tau zoo, tuaj yeem txuas ntxiv lub sijhawm txias, thiab nws cov roj nplua nyeem ua rau daim ntawv thov ntau dua. Nws zoo txhim kho qhov zoo ntawm qhov chaw, muab kev ntxhib los mos thiab kev ntxhib los mos, thiab ua rau cov khoom sib txuas ruaj khov dua.
8. Cement raws li gypsum
Nws muaj kev tuav dej siab, ua kom ntev lub sijhawm ua haujlwm ntawm mortar, thiab tseem tuaj yeem tswj cov huab cua nkag mus, yog li tshem tawm cov kab nrib pleb ntawm cov txheej txheej thiab ua kom lub ntsej muag du.

Kev lag luam zaub mov

1. Cov kaus poom citrus: txhawm rau tiv thaiv kom tawv nqaij dawb thiab ua kom tsis zoo vim yog qhov decomposition ntawm citrus glycosides thaum lub sij hawm cia, thiaj li ua tiav cov nyhuv tshiab.
2. Cov txiv hmab txiv ntoo txias: ntxiv rau cov kua txiv hmab txiv ntoo thiab dej khov ua kom saj zoo dua.
3. Sauce: siv los ua emulsion stabilizer los yog thickener ntawm ntses thiab txiv lws suav muab tshuaj txhuam.
4. Cov dej txias txheej thiab polishing: siv rau cov ntses khov cia kom tsis txhob muaj xim tsis zoo thiab degradation. Tom qab txheej thiab polishing nrog methyl cellulose los yog hydroxypropyl methyl cellulose aqueous tov, khov rau ntawm cov dej khov txheej.
5. Adhesive rau cov ntsiav tshuaj: Raws li molding nplaum rau cov ntsiav tshuaj thiab granules, nws muaj zoo "simultaneous vau" (yuav sai sai, tawg thiab dispersion thaum noj).

Kev lag luam kws tshuaj

1. Encapsulation: Tus neeg sawv cev encapsulation yog tsim los rau hauv cov kuab tshuaj organic los yog cov tshuaj aqueous rau kev tswj xyuas cov ntsiav tshuaj, tshwj xeeb tshaj yog rau cov tshuaj tsuag encapsulation ntawm cov khoom npaj.
2. Retarding tus neeg saib xyuas: 2-3 grams tauj ib hnub, 1-2G ib zaug, rau 4-5 hnub.
3. Ophthalmic tshuaj: Txij li thaum osmotic siab ntawm methyl cellulose aqueous kua yog tib yam li cov kua muag, nws tsis tshua khaus qhov muag. Nws tau ntxiv rau hauv cov tshuaj ophthalmic ua cov roj nplua nyeem rau kev sib cuag nrog lub qhov muag lens.
4. Jelly: Nws yog siv los ua cov khoom siv ntawm jelly zoo li cov tshuaj sab nraud lossis tshuaj pleev.
5. Impregnating tus neeg saib xyuas: siv los ua thickener thiab dej tuav tus neeg saib xyuas.

Kev lag luam tshuaj pleev ib ce

1. Cov tshuaj zawv plaub hau: Txhim kho cov viscosity thiab npuas stability ntawm cov tshuaj zawv plaub hau, tshuaj ntxuav thiab tshuaj ntxuav tes.
2. Cov tshuaj txhuam hniav: txhim kho qhov fluidity ntawm cov tshuaj txhuam hniav.

Kiln kev lag luam

1. Cov khoom siv hluav taws xob: raws li cov xovxwm tsim cov nplaum ntawm ceramic electric compactor thiab ferrite bauxite hlau nplaum, nws tuaj yeem siv ua ke nrog 1.2-propanediol.
2. Glaze tshuaj: siv los ua glaze tshuaj ntawm ceramics thiab ua ke nrog enamel xim, uas tuaj yeem txhim kho kev sib raug zoo thiab kev ua haujlwm.
3. Refractory mortar: Nws tuaj yeem muab ntxiv rau refractory cib mortar lossis cam khwb cia cov khoom siv los txhim kho plasticity thiab dej tuav.

Lwm yam kev lag luam

HPMC kuj tau siv dav hauv cov khoom siv hluavtaws, petrochemical, ceramics, ntawv ua, tawv, dej-raws li number case, luam yeeb thiab lwm yam lag luam. Nws yog siv los ua thickener, dispersant, binder, emulsifier thiab stabilizer hauv kev lag luam textile.

Yuav ua li cas pom qhov zoo ntawm hydroxypropyl methyl cellulose (HPMC)?

1. Chromaticity: txawm hais tias nws tsis tuaj yeem txheeb xyuas ncaj qha seb HPMC puas siv tau yooj yim, thiab yog tias tus neeg sawv cev ntxuav hniav dawb ntxiv rau hauv kev tsim khoom, nws qhov zoo yuav raug cuam tshuam. Txawm li cas los xij, cov khoom lag luam zoo yog tab tom yuav yuav.
2. Fineness: HPMC muaj 80 meshes thiab 100 meshes feem ntau, thiab 120 meshes tsawg dua. Feem ntau HPMCs muaj 80 meshes. Feem ntau hais lus, offside fineness yog zoo dua.
3. Lub teeb kis: muab hydroxypropyl methyl cellulose (HPMC) rau hauv dej los tsim cov pob tshab colloid, thiab tom qab ntawd pom nws lub teeb transmittance. Qhov loj dua lub teeb transmittance, qhov zoo dua, qhia tias muaj tsawg insoluble teeb meem nyob rau hauv nws.
4. Lub ntiajteb txawj nqus tshwj xeeb: Qhov hnyav dua qhov tshwj xeeb lub ntiajteb txawj nqus, qhov zoo dua. Qhov piv yog qhov tseem ceeb, feem ntau vim tias cov ntsiab lus ntawm hydroxypropyl yog siab. Yog tias cov ntsiab lus ntawm hydroxypropyl yog siab, cov dej tuav tau zoo dua.
Hydroxypropyl methyl cellulose yog ruaj khov rau cov kua qaub thiab cov hauv paus, thiab nws cov tshuaj aqueous yog ruaj khov nyob rau hauv thaj tsam ntawm pH = 2 ~ 12. Peb yog cov chaw tsim khoom tshaj lij. Yog tias koj xav tau cov khoom no, koj tuaj yeem tiv tauj peb. Qhov ntawd yog txhua yam rau kev sib koom ntawm HPMC hauv qhov teeb meem no. Kuv vam tias nws tuaj yeem pab koj nkag siab HPMC.