Hydroxypropyl Methyl Cellulose 9004-65-3 Nrog Kev Ua Haujlwm Siab Hauv Dej

HPMC los yogHydroxypropyl methylcellulose(INN lub npe: Hypromellose), kuj yooj yim ua hydroxypropyl methylcellulose (HPMC), yog ib hom non-ionic cellulose sib xyaw ether. Nws yog ib qho semi-synthetic, inactive, viscoelastic polymer. Hydroxypropyl methylcellulose yog siv dav hauv kev tsim kho, khoom noj, tshuaj, thiab lwm yam lag luam.

HPMC CAS No.: 9004-65-3

HPMC Cov Qauv:

HPMC HS CODE: 3912390000

Cov khoom siv tshuaj lom neeg:

Tsos: Dawb los yog zoo sib xws hmoov dawb.

Qhov loj ntawm cov khoom me me; 100 mesh dhau tus nqi yog ntau dua 98.5%; 80 mesh dhau tus nqi yog 100%. Qhov loj ntawm cov khoom me me ntawm cov lus qhia tshwj xeeb yog txij li 40 txog 60 mesh.

Qhov pom kev ceev: 0.25-0.70g/cm (feem ntau yog li 0.5g/cm), qhov hnyav tshwj xeeb 1.26-1.31.

Kev yaj: Yaj tau hauv dej thiab qee cov kuab tshuaj, xws li qhov sib piv ntawm ethanol/dej, propanol/dej, thiab lwm yam. Cov kua dej muaj kev ua haujlwm ntawm qhov chaw. Nrog kev pom tseeb siab thiab kev ua haujlwm ruaj khov, qhov kub ntawm cov gel ntawm cov lus qhia sib txawv yog txawv, qhov yaj hloov pauv nrog viscosity, qhov viscosity qis dua thiab qhov yaj ntau dua. Kev ua tau zoo ntawm HPMC nrog cov lus qhia sib txawv muaj qee qhov sib txawv. Kev yaj ntawm HPMC hauv dej tsis cuam tshuam los ntawm tus nqi PH.

HPMC tsim los ntawm Longou:

Longou tsim thiab muab ntau hom HPMC thiab HEMC (MODCELL®) rau ntau daim ntawv thov. Feem ntau, Longou HPMC muaj ob series HPMC, ib series ntawm HEMC thiab cov khoom hloov kho.

Cov hom txheem:

HPMC LK

HPMC LE

HEMC LH

Cov hom hloov kho: 

HEMC HP

HPMC KV

Hydroxypropyl methylcellulose (HPMC) yog cov cellulose ethers uas muaj cov pab pawg hydroxyl ntawm cov saw cellulose hloov rau pab pawg methoxy lossis hydroxypropyl.It yog ua los ntawm kev sib xyaw tshwj xeeb ntawm cov paj rwb cellulose ntshiab heev nyob rau hauv alkaline tej yam kev mob. Nyob rau hauv xyoo tas los no, HPMC, ua ib qho kev sib xyaw ua haujlwm, feem ntau ua lub luag haujlwmshauv kev khaws dej thiab thickening hauv kev lag luam kev tsim kho thiab siv dav hauvcov tshuaj khib nyiab qhuav, zoo li cov nplaum pobzeb, cov grouts, plastering, phab ntsa putty, tus kheej leveling, cov tshuaj khib nyiab rwb thaiv tsev thiab lwm yam.

Feem ntau, rau cov hmoov putty, qhov viscosity ntawmHPMCtxaus ntawm li ntawm 70,000 txog 80,000. Lub ntsiab lus tseem ceeb yog nws qhov kev ua tau zoo ntawm kev khaws dej, thaum qhov cuam tshuam ntawm kev tuab yog qhov me me. Rau cov mortar, qhov yuav tsum tau ua rauHPMCyog siab dua, thiab qhov viscosity yuav tsum nyob ib puag ncig 150,000, uas tuaj yeem ua kom nws ua haujlwm zoo dua hauv cov cement mortar. Tau kawg, hauv cov hmoov putty, tsuav yog qhov kev ua tau zoo ntawm HPMC zoo, txawm tias qhov viscosity qis (70,000 txog 80,000), nws yog qhov txais tau. Txawm li cas los xij, hauv cov cement mortar, nws yog qhov zoo dua los xaiv HPMC nrog viscosity loj dua (ntau dua 100,000), vim tias nws cov dej khaws cia tseem ceeb dua hauv qhov xwm txheej no.

Qhov teeb meem ntawm kev tshem tawm cov hmoov putty feem ntau nyob ntawm qhov zoo ntawm calcium hydroxide thiab tsis muaj feem cuam tshuam nrog HPMC. Yog tias cov calcium hydroxide hauv calcium hydroxide tsawg lossis qhov piv ntawm CaO thiab Ca (OH) 2 tsis tsim nyog, nws yuav ua rau cov hmoov putty poob. Hais txog qhov cuam tshuam ntawm HPMC, nws feem ntau pom hauv nws cov dej tuav. Yog tias HPMC tsis muaj dej tuav, nws kuj tseem yuav muaj qee qhov cuam tshuam rau kev tshem cov hmoov putty.

Cov kev cai rau kev siv cov hmoov putty yog qhov tsawg heev. Qhov viscosity ntawm 100,000 txaus. Qhov tseem ceeb yog kom muaj cov khoom khaws cia dej zoo. Hais txog cov mortar, qhov yuav tsum tau ua yog siab heev thiab xav tau viscosity siab dua, thiab cov khoom 150,000 muaj txiaj ntsig zoo dua.

(1) Kev lag luam kev tsim kho: Ua tus neeg sawv cev khaws dej thiab retarder ntawm cement mortar, nws ua rau cov mortar twj tau. Siv plaster, gypsum, putty hmoov lossis lwm yam khoom siv hauv tsev ua cov nplaum los txhim kho kev siv thiab ntev lub sijhawm ua haujlwm. Nws tuaj yeem siv los nplaum cov vuas ceramic, marble, yas kho kom zoo nkauj, nplaum cov neeg sawv cev txhawb nqa, thiab txo cov cement. Cov khoom khaws dej ntawm HPMC tiv thaiv cov slurry los ntawm kev tawg vim qhuav sai dhau tom qab smearing thiab txhim kho lub zog.

(2) Kev lag luam tsim khoom siv ua los ntawm cov khoom siv ceramic: siv dav ua cov nplaum hauv kev tsim cov khoom siv ceramic. tom qab ua kom tawv.

(3) Kev lag luam txheej: Ua ib qho thickener, dispersant thiab stabilizer hauv kev lag luam txheej, nws muaj solubility zoo hauv dej lossis cov kuab tshuaj organic.

(4) Kev luam ntawv number case: Ua ib qho thickener, dispersant thiab stabilizer hauv kev lag luam number case, nws muaj solubility zoo hauv dej lossis cov organic solvents.

(5) Yas: ua tus neeg sawv cev tso tawm, tshuaj ua kom mos, roj nplua nyeem, thiab lwm yam.

(6) Polyvinyl chloride: Raws li dispersant hauv kev tsim cov polyvinyl chloride, nws yog tus pabcuam tseem ceeb hauv kev npaj PVC los ntawm kev ncua polymerization.

(7) Lwm tus: Cov khoom no kuj siv dav hauv tawv, cov khoom ntawv, txiv hmab txiv ntoo thiab zaub khaws cia, thiab kev lag luam textile.