HydroxyPropyyl methylcellose-hpmc

HydroxyPropy cellulose, tseem hu ua hypromellose, cellulose hydroxypropyl me me li cov khoom siv ntshiab thiab tshwj xeeb hauv ob lub cev.
Suav Lub Npe
Hydroxypropyloosylcelleculose
Lub npe txawv teb chaws
HydroxyPropyyl Methyl cellulose
lub npe luv
HPMC Cellulose
Sab nraum
Cov hmoov dawb
Lus Askiv Alias
HPMC

Lub hom phiaj tseem ceeb

1. Kev lag luam kev tsim kho: raws li cov dej-khaws cia thiab retarder rau cov cement cug, nws ua rau cug col nqus. Siv los ua cov binder nyob rau hauv plastering paste, gypsum, putty hmoov lossis lwm yam khoom siv hauv tsev los txhim kho kev ua haujlwm thiab lub sijhawm ua haujlwm ntev. Nws yog siv los ua cov muab tshuaj txhuam rau cov pobzeb ceramic, thiab kho kom zoo nkauj, ua cov tshuaj pleev xim ntxiv, thiab nws kuj tuaj yeem txo cov cement. Cov dej khaws cia ntawm HPMC tuaj yeem tiv thaiv cov slurry los ntawm kev tawg vim kom qhuav sai tom qab daim ntawv thov, thiab txhim kho lub zog tom qab ua kom tawv.
2. Ceramic Raug: Siv Dav Ua Binder hauv kev tsim cov khoom lag luam Ceramic.
3. Txheej kev lag luam: Raws li cov tuab dua, dispersant thiab stabilizer nyob rau hauv txheej kev lag luam, nws muaj kev sib raug zoo hauv dej lossis cov kuab tshuaj organic. Raws li cov xim tshem tawm.
4. Ink Printing: Ua tuab, dispersant, dispersant thiab stabilizer nyob rau hauv Ink kev lag luam, nws muaj kev sib raug zoo hauv dej lossis cov kuab tshuaj organic.
5. Yas: Siv raws li cov neeg sawv cev tso tawm, cov muag muag, roj nplua nyeem, thiab lwm yam.
6. Cov tshuaj polyvinylinal: nws yog siv los ua cov ntawv tsis sib xws hauv kev tsim cov polyvinyl chloride, thiab nws yog lub ntsiab uckiliary Tus neeg saib xyuas rau kev ncua ntawm pvc los ntawm kev ncua qib polymerization.
7. Lwm tus: Cov khoom no tseem dav siv hauv tawv, cov khoom ntawv, txiv hmab txiv ntoo thiab cov zaub kom txuag tau cov khoom lag luam textile.
8. Tshuaj lag luam: cov khoom siv txheej; Cov ntaub ntawv zaj duab xis; Tus Nqi-Tswj-Cov Khoom Siv Polymer rau kev npaj ua kom tau txais; stabilizers; Cov neeg sawv cev tsis ncua; Ntsiav tshuaj txiag; khi tes

HydroxyPropyyl methylcellulose molecular qauv molecular
Soluble hauv dej thiab feem ntau polar c thiab cov dej uas tsim nyog ntawm ethanol / Dej, DICHOLD IN etheroethane, thiab lwm haiv neeg los mus rau hauv kev daws dej txias. Cov tshuaj aqueous muaj cov haujlwm saum npoo av, siab transparency thiab ruaj khov ua tau zoo. HPMC muaj cov cuab yeej ntawm thermal gelation. Cov tshuaj aqueous ntawm cov khoom yog rhuab los ua cov gel thiab nag lossis daus, thiab tom qab ntawd yaj tom qab txias. Lub gel kub ntawm cov khoom nrog cov sib txawv txawv yog txawv. Cov solubility hloov nrog viscosity. Qhov qis dua viscosity, muaj ntau dua cov solubility. Cov khoom ntawm HPMC ntawm cov sib txawv sib txawv yog qhov sib txawv. Kev sib cais ntawm HPMC hauv dej tsis cuam tshuam los ntawm tus nqi PH. Qhov loj me me: 100 Mesh Pass tus nqi yog ntau dua 98.5%. Bulk ntom: 0.25-0.70g / (feem ntau yog hais txog 0.4g /), tshwj xeeb nqus 1.26-1.31. Txawj Ntsia Kub: 180-200 ℃, carbonization kub: 280-300 ℃. Tus methoxy tus nqi yog 19.0% mus rau 30.0%, thiab hydroxypropyl nqi yog 4% rau 12%. Viscosity (22 ℃, 2%) 5 ~ 200000mpa.s. Gel kub (0.2%) 50-90 ℃. HPMC muaj cov yam ntxwv ntawm thickening muaj peev xwm, ua kom muaj zog, thiab cov yeeb yaj kiab zoo heev, qhov tsis txaus ntseeg, kev tawm tsam thiab cohesiveness.
Tshuaj Tshuaj Muaj Zog
1. Pom: Dawb lossis tawv nqaij dawb.
2. Paus taus loj me; 100 Mesh Pass tus nqi yog ntau dua 98.5%; 80 Mesh Pass tus nqi yog 100%. Lub particle loj ntawm cov kev tshwj xeeb tshwj xeeb yog 40-60 mesh.
3. Cov pa roj cua kub: 280-300 ℃

Hydroxypropyloosylcelleculose
4. Pom meej ntom ntom: 0.25-0.70g / cm (feem ntau nyob ib ncig ntawm 0.5g / cm), tshwj xeeb lub ntiajteb txawj nqus 1.26-1.31.
5. Xim hloov ntsuas kub: 190-200 ℃
6. Sab nro: 2% tshuaj aque yog 42-56dyn / cm.
7. Solubility: soluble hauv dej thiab qee cov kuab tshuaj, xws li ethanol / dej, propanol / dej, thiab lwm yam. Cov kev daws teeb meem yog cov nquag ua haujlwm. Siab transparency thiab ruaj khov ua tau zoo. Cov khoom sib txawv ntawm cov khoom muaj ntau qhov chaw kub sib txawv, thiab solubility hloov nrog viscosity. Qhov qis dua viscosity, muaj ntau dua cov solubility. Cov kev sib txawv ntawm HPMC muaj cov khoom sib txawv. Kev sib cais ntawm HPMC hauv dej tsis cuam tshuam los ntawm PH tus nqi.
8. Nrog qhov txo qis ntawm methoxy pab pawg muaj txiaj ntsig, dej solubility txo qis, thiab cov kev ua si ntawm HPMC txo qis.
9. HPMC kuj muaj cov yam ntxwv ntawm thickening muaj peev xwm, cov hmoov tshauv uas tsis muaj tseeb, ua kom muaj kev ruaj khov, dej ua yeeb yam, qhov tsis txaus ntseeg, kev tawm tsam thiab cohesiveness.
Cov Qauv Piav Qhia
1. Txhua tus qauv tuaj yeem raug ntxiv rau cov khoom siv los ntawm kev sib xyaw qhuav;
2. Thaum nws yuav tsum tau ncaj qha ntxiv rau qhov ntsuas kub qub, nws yog qhov zoo tshaj plaws los siv cov dej dej ntws txias. Tom qab ntxiv, feem ntau nws yuav siv 10-90 feeb los ua tuab;
3. Cov qauv zoo tib yam tuaj yeem yaj los ntawm stirring thiab dispersing nrog dej kub ua ntej, tom qab ntawd ntxiv dej txias, nplawm thiab txias;
4. Yog tias muaj agglomeration thiab qhwv thaum lub sij hawm yaj, nws yog vim tias lub stirring tsis txaus los yog tus qauv zoo tib yam tau ntxiv rau cov dej txias. Lub sijhawm no, nws yuav tsum tau ua sai sai.
5. Yog tias npuas yog tsim tawm thaum xaus, nws tuaj yeem raug txiav txim siab rau 2-12 teev (lub sijhawm tshwj xeeb tau txiav txim siab los ntawm kev sib txuas, thiab lwm yam, lossis ntxiv tus nqi tsim nyog ntawm defojing tus neeg sawv cev.
Kev daws teeb meem
1. Kho cov paj rwb cellulose reced nrog alkali daws ntawm 35-40 ℃ Rau ib nrab ntawm cov mov, thiab hais tias qhov nruab nrab ntawm cov alkali fiber ntau nyob hauv cov neeg uas yuav tsum tau ua. Tso cov alkali mus rau hauv lub hwj txwv ethermicification, ntxiv rau lub epylene oxide thiab Ethyl cettide nyob rau lem, thiab Equath0 ℃ rau 5h, qhov siab tshaj plaws yog li 1.8MPA. Tom qab ntawd ntxiv qhov tsim nyog ntawm hydrochloric acid thiab oxalic acid rau cov dej kub ntawm 90 ° C kom ntxuav cov khoom kom nthuav cov ntim. Lub cev qhuav dej nrog ib qho centrifuge. Ntxuav kom txog thaum nruab nrab, thaum cov ntsiab lus dej hauv cov khoom siv tsawg dua 60%, qhuav nws nrog cov huab cua kub kub ntawm 130 ° C kom tsawg dua 5%.
Txoj kev xeem
Txoj Kev Siv Lub Npe: Hypromellose-hypromellose-hydroxyproproxyl Pawg-txiav txim siab ntawm hydroxyprropoxyl pawg
Cov tau txais daim ntawv thov: Cov txheej txheem no tau txais cov kev txiav txim siab los txiav txim siab los txiav txim siab cov ntsiab lus ntawm hydroxyprropeSpoToxy hauv Hypromellose.
Txoj kev no yog siv rau hypromellose.
Txoj kev cai: suav cov ntsiab lus ntawm hydroxypropoxy pab pawg raws li cov pab pawg hydroxypropoxy txoj kev txiav txim siab.
Reagent: 1. 30% (g / g) chromium trioxide daws
2. Sodium hydroxide titrant (0.02mol / l)
3. Phenolphhatale kev daws teeb meem
4. Sodium Bicarbonate
5. Dilute sulfuric acid
6. Poov tshuaj iodide
7. Sodium thiosulfate cov kev daws teeb meem kaum (0.02mol / l)
8. Cov hmoov txhuv nplej siab
Khoom siv:
Qauv Kev Npaj: 1. Sodium Hydroxide Cov Txuj Ci (0.02Mol / L)
Kev npaj: coj 5.6m ntawm ntshiab sole sodium hydium tov, ntxiv freshly boiled dej txias kom 1000ml.
Kev ntsuas hluav taws xob: Siv li ntawm 6G ntawm Ringassium hydrogen phthalate kom hnyav rau ntawm 105 ℃, qhov hnyav, co kom yaj ntau li ntau tau; Ntxiv 2 tee phenolphhatein qhov ntsuas pom tseeb, siv cov laj thawj no. Thaum mus txog qhov kawg taw tes, cov poov tshuaj hydrogen phthalate yuav tsum tau yaj, thiab kev daws yuav tsum muaj cov xim liab. Txhua 1ml ntawm sodium hydroxide tenttration daws (1Mol / l) yog sib npaug rau 20.42mg ntawm poov tshuaj hydrogen phthalate. Xam cov concentration ntawm cov tshuaj no raws li kev siv ntawm cov tshuaj no thiab tus nqi ntawm potassium hydrogen phthalate. Quaititately diluted 5 zaug los ua kom qhov siab 0.02Mol / l.
Cia: Muab tso rau hauv cov polyethylene yas lub raj mis thiab khaws cia nws tau sib khi; Muaj 2 lub qhov nyob rau hauv lub nres tsheb, thiab khob khob iav tso rau hauv txhua lub qhov.
2. Phenolphhatale kev daws teeb meem
Nqa 1g ntawm phenolphhatalein, ntxiv 100ml ntawm ethanol kom yaj
3. Sodium thiosulfate cov kev daws teeb meem tunch (0.02Mol / L)
Kev npaj: Nqa 26G ntawm sodium thiosulfate thiab 0.20g ntawm anhydrod dej txias rau hauv 1000mL, co zoo, thiab lim tom qab sawv rau 1 lub hlis.
Kev ntsuas hluav taws xob: Siv 0.15g ntawm Renchidmark Dichromate qhuav ntawm 12ML ntawm dilute sulfuric acid, co zoo thiab muab nws kaw kom nruj; Tom qab 10 feeb nyob rau hauv qhov tsaus ntuj, ntxiv 250 ml ntawm cov dej kom dilute, thaum lub tog zaum mus txog thaum lub ntsej muag tsw qab thaum muaj qhov tshwm sim yog qhov tsis muaj qab. . Txhua 1ml ntawm sodium thiosulfate (0.1mol / l) yog sib npaug rau 4.903g ntawm poov tshuaj dichromate. Xam cov concentration ntawm cov tshuaj no raws li kev siv ntawm cov tshuaj no thiab tus nqi ntawm potassium dichromate coj. Quaititately diluted 5 zaug los ua kom qhov siab 0.02Mol / l.
Yog tias chav sov nyob qis dua 25 ° C, cov tshuaj tiv thaiv kev daws teeb meem thiab cov dej yuav tsum txias txog 20 ° C.
4. Cov hmoov txhuv nplej siab
Noj 0.5 g ntawm soluble starch, ntxiv 5 ml ntawm dej thiab sib tov zoo, maj mam muab rhaub rau 2 feeb, cia nws txias, thiab nchuav tawm supernatant. Txoj kev daws teeb meem no yuav tsum tau siv nyob rau hauv lub system tshiab.
Cov kauj ruam ua haujlwm: Noj 0.1 g ntawm cov khoom no, muab tso rau hauv cov flascle flask d, thiab ntxiv 10 mL ntawm 30% (g / g) cadmium trichhloride tov. Tso dej rau hauv chav tsim tawm cov yeeb nkab b rau qhov sib koom ua ke, thiab txuas cov khoom siv distillation. Raus B thiab D nyob rau hauv cov roj da dej (nws tuaj yeem yog cov roj dej ua ke nrog cov kua dej txias hauv lub raj mis Cov roj da dej tau rhaub rau 155 ° C nyob rau hauv 30 feeb, thiab qhov kub tau tswj kom txog thaum 50 m ntawm distillate tau sau. Lub condenser raug tshem tawm los ntawm cov lus fraction, yaug nrog dej, ntxuav thiab 3 tee ntawm phenolphatin ntsuas tau ntxiv. Titratal Bicarbon, sau cov ntsaws dej khov, kaw cov ntsaws rau hauv ib qho tsaus ntuj, Kev daws, muaj lub npe rau qhov kawg taw tes nrog sodium thiosulfate cov kev daws teeb meem tseem ceeb (0.02Mol / l), thiab sau cov ntim ntim v2 (ml). Lwm qhov kev xeem tsis tau ua, thiab vb) ntawm kev siv cov kua dej siab (0.02Mol / l) tau sau tseg tau. Xam cov ntsiab lus hydroxyprropoxy.
Nco tseg: "precision hnyav" txhais tau tias qhov hnyav yuav tsum yog qhov tseeb rau ib txhiab ntawm qhov hnyav.
Kev Nyab Xeeb Kev Nyab Xeeb
Kev Noj Qab Haus Huv
Cov khoom no muaj kev nyab xeeb thiab tsis muaj tshuaj lom, tuaj yeem siv los ua khoom noj ntxiv, tsis muaj cua sov, thiab tsis yog ua kom sov rau daim tawv nqaij thiab cov ntaub nyias nyias nyias. Feem ntau suav tias yuav muaj kev nyab xeeb (FDA1985), qhov pub rau txhua hnub txhua hnub yog 25mg / kg (FAO / uas tau txhaj tshuaj yuav tsum hnav thaum lub sijhawm ua haujlwm.
Cuam tshuam ib puag ncig
Txav deb ntawm kev ua kom tawg ua rau cov hmoov av ya thiab ua rau muaj pa ua pa.
Kev phom sij rau lub cev thiab tshuaj: Zam kev sib cuag nrog cov chaw tua hluav taws, thiab zam kev tsim kom muaj plua plav loj hauv ib puag ncig kom tiv thaiv kev phom sij tawg.
Tsheb thauj mus los thiab chaw khaws khoom
Ua tib zoo saib xyuas cov tshuaj pleev thaiv hnub, dej nag, noo noo, zam kev tshav ntuj ncaj qha, thiab khaws cia rau hauv qhov chaw qhuav.

Daim Ntawv Thov Teb
Kev Tsim Kho Kev Tsim Kho
1. Cug Cug: Txhim kho qhov tsis sib xyaw ntawm cov caas-xuab zeb, zoo heev txhim kho cov volute thiab zoo tiv thaiv cov kab nrib pleb thiab txhim kho lub zog ntawm xis mas.
2. Pobzeb Maas: txhim kho cov yas thiab dej tuav ntawm cov kab hlau khib nyiab, txhim kho txoj kev sib raug zoo ntawm cov vuas, thiab tiv thaiv kev siv hluav taws xob.
3. Txheej ntawm cov ntaub ntawv refractory xws li asbestos: raws li kev ncua cov neeg sawv cev, tsis muaj kev xav txog kev ua kom zoo nkauj, thiab tseem yuav txhim kho kev sib raug zoo rau lub substrate.
4. Gypsum coagulation slurry: Txhim kho cov dej tuav dej thiab cov txheej txheem, thiab txhim kho adchesion mus rau substrate.
5. Kev ua raws Maas: ntxiv rau cov cement rau Gypsum Board los txhim kho kom muaj kev nyab xeeb.
6. Cov PuTex Putty: Txhim Kho Lub Kua Muag thiab Dej Tuav Tseg ntawm Putty Raws Li Resin Lowx.
7. Stucco: Raws li muab tshuaj txhuam cov khoom siv ntuj, nws tuaj yeem txhim kho cov dej khaws cia thiab txhim kho txoj kev sib raug zoo nrog lub substrate.
8. TXHEEJ TXHEEM: Raws li lub tshuab yas yas rau cov txheej txheem Latx, nws muaj lub luag haujlwm txhim kho kev ua haujlwm ua haujlwm thiab fluish ntawm cov hmoov.
9. Txau Txheej: Nws muaj cov txiaj ntsig zoo ntawm kev tiv thaiv kev ua kom cov movent-raws li cov khoom siv cov khoom siv los ntawm tog thiab kho kom huv thiab tshuaj tsuag cov qauv.
10. Cov khoom qub ntawm cov cement thiab gypsum: nws yog siv los ua cov khoom siv hydraulic thiab muaj cov khoom siv hluav taws xob zoo nkauj.
11. Cov ntsa fiber: Nws yog qhov ua tau zoo li cov phau ntawv rau cov phab ntsa xuab zeb vim nws cov kab mob tawm tsam thiab cov kab mob tawm tsam.
12. Lwm tus: nws tuaj yeem siv ua npuas dua li cov txiv neej khib nyiab rau cov tshuaj khib nyiab me thiab cov neeg siv lub tshuab ua haujlwm (PC version).
Tshuaj Kev Lag Luam
1. Polymerization ntawm Vinyl chloride thiab Vinylidene: Raws li kev ncua me me, nws tuaj yeem siv ua ke nrog cov cellulropal (HPC) los tswj cov kab cellulropyl
2. Cov nplaum: raws li cov nplaum ntawm cov ntawv, nws feem ntau tuaj yeem siv ua ke nrog cov xim yas acetate hloov cov hmoov txhuv nplej siab.
3. Tshuaj tua kab: thaum ntxiv rau tshuaj tua kab thiab tshuaj tua kab, nws tuaj yeem txhim kho cov nplaum nplaum thaum nqus.
4. Cov lock: txhim kho cov emulsion stabilizer ntawm asphalt alphalt growx, thiab cov tuab tuab ntawm cov roj hmab styrene-butadiene roj hmab (SBR).
5. Binder: Siv ua cov nplaum molding rau xaum thiab xaum xaum.
Tshuaj pleev ib ce
1. Zawv plaub hau: Txhim kho cov viscosity ntawm tsuaj zawv plaub hau, tshuaj ntxuav thiab tshuaj ntxuav thiab ruaj khov ntawm cov pa npuas.
2. Tshuaj txhuam hniav: txhim kho cov tshuaj txhuam hniav ntawm cov tshuaj txhuam hniav.
Kev Lag Luam Khoom Noj
1. Cov kaus poom kaus poom: txhawm rau tiv thaiv kom dawb huv thiab tsis zoo vim yog cov decomposition ntawm citrus glycosides thaum lub sijhawm khaws cia ntawm kev khaws cia.
2. Cov zaub mov txias cov khoom noj: ntxiv rau Sherbet, dej khov, thiab lwm yam kom tus saj zoo dua.
3. Sau rau cov ntses: raws li emulsifieding stabilizer lossis thickening tus neeg sawv cev rau cov kua thiab ketchup.
4. Txheej thiab glazing nyob rau hauv dej txias: nws yog siv rau khov ntses cia, uas tuaj yeem tiv thaiv kev tsis sib haum xeeb thiab tsis zoo ntawm kev ua tau zoo. Tom qab txheej thiab glazing nrog methyl cellulose lossis hydrothpropyl cellulose aqueous kua, nws yog tom qab khov ntawm dej khov.