1. Cov ntsiab lus
HydroxyPropy cellulose (HPMC) yog cov tsis muaj ionic cellulose ether ua los ntawm cov txheej txheem polymer - cellulose los ntawm cov txheej txheem polymer los ntawm cov txheej txheem cov tshuaj lom neeg. HydroxyPropyyl methylcellueculose (HPMC) yog cov tshuaj tsw qab, uas tsis muaj txiaj ntsig, ua yeeb yam, noo noo, noo noo khaws thiab tiv thaiv kev tiv thaiv kab mob coloid.
HydroxyPropyth Metylcellulose (HPMC) tuaj yeem siv rau hauv cov ntaub ntawv hauv tsev, cov khoom siv hluavtaws, cov tshuaj, cov ntawv ua liaj ua teb, tshuaj pleev ib puag ncig, tshuaj pleev ib ce, tshuaj pleev ib ce thiab haus luam yeeb
2,Cov khoom lag luam cov khoom lag luam thiab cov khoom sib cais tau muab faib ua cov dej txias s thiab zoo tib yam hom
Cov lus tshwj xeeb ntawm hydroxyprropy kasthyl cellulose
| khoom | MC | HPMC | ||||
| HE | HF | HJ | HK | |||
| Metoxy | Cov ntsiab lus (%) | 27.0 ~ 32.0 | 28.0 ~ 30.0 | 27.0 ~ 30.0 | 16.5 ~ 20.0 | 19.0 ~ 24.0 |
| Qib ntawm cov chaw nyob | 1.7 ~ 1.9 | 1.7 ~ 1.9 | 1.8 ~ 2.0 | 1.1 ~ 1.6 | 1.1 ~ 1.6 | |
| Hydroxyprropoxy | Cov ntsiab lus (%) | 7.0 ~ 12.0 | 4 ~ 7.5 | 23.0 ~ 32.0 | 4.0 ~ 12.0 | |
| Qib ntawm cov chaw nyob | 0.1 ~ 0.2 | 0.2 ~ 0.3 | 0.7 ~ 1.0 | 0.1 ~ 0.3 | ||
| Ya raws (wt%) | 50.0 | |||||
| Tshauv (wt%) | I≤1.0 | |||||
| Phv Khawv | 5.0 ~ 8.5 | |||||
| Sab nraum | Milky Dawb granule hmoov los yog dawb granule hmoov | |||||
| Ua ke | 80EAD | |||||
| Viscosity (mpa.s) | Saib viscosity specification | |||||
Viscosity specification
| Kev qhia tshwj xeeb | Viscosity ntau (Mpa.s) | Kev qhia tshwj xeeb | Viscosity ntau (Mpa.s) |
| 5 | 3 ~ 9 | 8000 | 7000 ~ 9000 |
| 15 | 10 ~ 20 | 10000 | 9000 ~ 11000 |
| 25 | 20 ~ 30 | 20000 | 15000 ~ 25000 |
| 50 | 40 ~ 60 | 000000000000 | 35000 ~ 45000 |
| 100 | 80 ~ 120 | 60000 | 46000 ~ 65000 |
| 400 | 300 ~ 500 | 80000 | 66000 ~ 84000 |
| 800 | 700 ~ 900 | 100000 | 85000 ~ 120000 |
| 1500 | 1200 ~ 2000 | 0000000000 | 130000 ~ 180000 |
| 4000 | 3500 ~ 4500 | 200000 | ≥180000 |
3,Khoom Xwm
Cov Khoom: Cov khoom no yog cov hmoov dawb lossis tawv dawb, tsw, tsis muaj qab hau thiabtsis-lom.
Dej solubility thiab thickening muaj peev xwm: Cov khoom no tuaj yeem yog cov dej txias kom tsim cov tshuaj pleev pob tshab.
Kev rhuav tshem hauv cov kuab tshuaj yeeb yaj kiab: vim tias nws muaj qee qhov ntau ntawm cov pab pawg hydroxyl pawg, thiab tuaj yeem tau yaj nyob rau hauv cov kuab tshuaj sib xyaw nrog dej thiab cov organic.
Cov ntsev tsis kam: Vim tias cov khoom no yog cov khoom tsis-ionic, nws yog qhov ruaj khov nyob rau hauv cov ntsev a aque ntawm cov hlau roj lossis organic electrolytes.
Cov haujlwm saum npoo av: Cov tshuaj noous ntawm cov khoom lag luam no muaj cov kev ua si saum npoo av, thiab muaj cov haujlwm xws li emulsification, tiv thaiv kev tiv thaiv thiab txheeb ze ruaj khov.
Thermal gelation: Thaum cov tshuaj aqueous ntawm cov khoom no yog rhuab rau qee qhov kub thiab txias, nws yuav ua rau muaj qhov (poly) flocculation xeev, yog li cov kev daws teeb meem tau ploj mus. Tab sis tom qab txias, nws yuav tig mus ua cov thawj kev daws teeb meem dua. Qhov kub ntawm uas gelation tshwm sim yog nyob ntawm cov khoom lag luam, cov concentration ntawm cov tshuaj thiab tus nqi ntawm cua sov.
PH kev ruaj khov: qhov viscosity ntawm cov kua aqueous ntawm cov khoom no yog ruaj khov nyob rau hauv ntau ntawm PH3.0-11.0.
Cov nyhuv dej-khaws cia: Vim tias cov khoom no yog hydrophilic, nws tuaj yeem txuas ntxiv rau cug, gypsum, pleev xim, thiab lwm yam kom tswj tau cov nyhuv hauv cov khoom.
Cov duab tas: Piv nrog lwm cov dej-soluble polymers, cov kua aqueous ntawm cov khoom no muaj cov khoom tshwj xeeb tshaj plaws. Nws ntxiv muaj peev xwm ua kom cov duab ntawm cov khoom lag luam sib xyaw ua ke.
Lubricity: Ntxiv cov khoom no tuaj yeem txo cov kev txhuamricicient thiab txhim kho lubricity coefficient thiab txhim kho lubricity cov khoom lag luam thiab cov khoom noj MAAs.
Zaj duab xis-tsim cov khoom: Cov khoom no tuaj yeem tsim qhov hloov tau yooj yim, cov yeeb yaj kiab pob tshab nrog cov khoom siv kho tau zoo, thiab muaj roj tsis zoo
4Cov. Lub cev thiab tshuaj
Qhov loj me me: 100 Mesh Pass tus nqi yog ntau dua 98.5%, 80 tus nqi dhau yog 100%
Carbonancy Kub: 280 ~ 300 ℃
Pom meej ceev: 0.25 ~ 0.70 / cm tshwj xeeb lub ntiajteb txawj nqus 1.26 ~ 1.31
Discoloration kub: 190 ~ 200 ℃
Sab nro: 2% kev daws teeb meem yog 42 ~ 56Dyn / CM
Solubility: soluble hauv dej thiab qee cov kuab tshuaj, cov kua aqueous muaj cov dej num nto. Siab pob tshab. Kev ruaj khov ua tau zoo, solubility hloov nrog viscosity, qhov qis dua viscosity, muaj ntau dua cov solubility.
HPMC kuj muaj cov yam ntxwv ntawm thickening muaj peev xwm, ntsev tiv taus, thiab ntau zaj duab xis tsis kam, dispersibility thiab cohesiveness.
Tsib, lub hom phiaj tseem ceeb
Muaj Qib HPMC feem ntau yog siv los ua ib qho kev tsis txaus siab hauv kev tsim cov polyvinyl chloride, thiab yog lub ntsiab oomxiliary Tus neeg sawv cev rau npaj PVC los ntawm Kev Ncua Ntawv Polymerization. Ib qho ntxiv, nws tuaj yeem siv los ua cov ntaub pua plag, ua kom cov khoom siv xim, cov duab kos, duab kos duab, tshuaj pleev ib ce, duab kos duab, tshuaj pleev ib ce, thiab cov yeeb yaj kiab cov khoom siv muaj cov yam ntxwv muaj cov yam ntxwv tsis tu ncua thiab xoob xoob, Haum kom tsim nyog lub ntiajteb txawj nqus thiab kev ua tau zoo heev, yog li tau hloov cov dej cawv thiab polyvinylylash li dispers.
Rau cov kev sib cais:
(1). Noj cov dej kub uas yuav tsum tau ntawm cov dej kub, muab tso rau hauv ib lub thawv thiab ua kom sov rau siab dua 80 ° C, thiab maj mam ntxiv cov khoom no nyob rau qeeb qeeb. Lub cellulose floats nyob rau hauv dej saum npoo thaum xub thawj, tab sis yog maj dispersed los ua ib tug uniform slurry. Cov kev daws teeb meem tau txias thaum ua kom nplawm.
(2). Hloov chaw, kub 1/3/3 lossis 2/3 ntawm cov dej kub kom tau ntau dua ntawm dej txias, tom qab ntawd stirring, thiab txias lub txiaj ntsig.
(3). Lub ntxig ntawm cellulose yog qhov zoo li qub, thiab nws muaj raws li cov hmoov me me hauv lub puab tusyees ua kom sai thaum nws ntsib dej kom tau viscosity.
(4). Maj mam thiab tusyees ntxiv cellulose ntawm chav tsev kub, nplawm tsis tu ncua kom txog rau thaum muaj kev daws teeb meem.
Lub Sijhawm Post: Feb-14-2025