Tshuaj tshwj xeeb thiab PPE
Zhengxiang lub tuam txhab kuj tseem npog ib feem ntawm cov tshuaj siv tshuaj xws li HPMC (Hydroxypropyl Methyl Cellulose), HPS (Hydroxypropyl Starch Ether) thiab RDP (Redispersible Polymer Power), thiab cov neeg ua hauj lwm cov khoom ntiag tug xws li lub tshuab ua pa.
Thaum peb lub peev xwm thev naus laus zis hloov mus rau cov khoom tiag, peb yuav muab ntau ntxiv rau peb cov neeg siv khoom.
SHANDONG ZHENGXIANG PETROLEUM TECHNOLOGY CO., LTD
Zhengxiang lub tuam txhab yog lub tuam txhab muaj peev xwm tshaj lij, nyob hauv nroog Dongying, lub nroog roj. Peb muaj cov kws tshaj lij kev lag luam thiab kev muag khoom uas muaj kev paub dhau los hauv kev lag luam tshuaj nrog rau ntau xyoo kev ua haujlwm hauv lub tuam txhab thoob ntiaj teb, thiab paub txog kev lag luam thoob ntiaj teb, kev lag luam thiab kev lag luam tshuaj hauv tsev.
Vim Li Cas Xaiv Peb
Kev pov hwm kev noj qab haus huv
Ua raws li MSDS thiab kev nyab xeeb hauv tsev & txawv teb chaws thiab kev tiv thaiv ib puag ncig thiab kev tswj hwm, thiab nquag siv HSE kev tswj hwm.
Yooj yim thiab ceev Logistic hom
Hiav txwv thiab av thauj mus los ("Tuam Tshoj Railway Express", lwm yam railways, tsheb thauj khoom), sib koom ua ke hiav txwv-thiab-rail tsheb thauj mus los. Hloov lossis ncaj qha. Ntau hom kev ntim khoom.
Txoj Kev Zoo Tshaj Plaws
Qhov kim tshaj plaws / pheej yig tshaj lossis zoo tshaj plaws tsis yog qhov zoo tshaj plaws rau txhua tus neeg siv khoom. Muab cov kev daws teeb meem zoo tshaj plaws rau cov neeg siv khoom sib txawv hauv ntau lub teb chaws thiab cheeb tsam.
Technology zoo heev
Ua raws li kev tshawb fawb ntawm tus kheej thiab kev txhim kho, thiab kev sib koom tes muaj zog nrog ntau lub tsev kawm ntawv qib siab / tshawb fawb lub koom haum / cov chaw ua haujlwm tshaj lij.
Kev pab cuam tom qab muag
Los ntawm kev muag khoom ua ntej mus rau tom qab-muag, peb cov kev pabcuam tshaj lij yog thoob plaws tag nrho cov txheej txheem.
Social Responsibility
Tiv thaiv cov cai ntawm cov tswv lag luam thiab cov neeg ua haujlwm, thiab koom nrog kev noj qab haus huv thiab kev ua haujlwm hauv zej zog.
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![Polycarboxylate Dej Reducer]()
Polycarboxylate Dej ReducerGeneral A dej-txo tus neeg sawv cev hu ua Polycarboxylate dej reducer ZX-SC-05 yog hom kev sib xyaw ua ke uas tuaj yeem txo cov dej siv los sib tov thaum tuav cov pob zeb ua pob zeb tsis hloov...Ntau -
![Dimethyl disulfide (dmds)]()
Dimethyl disulfide (dmds)Dimethyl Disulfide ZX-sc -06}}}, tseem hu ua dmds, yog cov kua tsis muaj xim nrog tus ntxhiab tsw ntxhiab tsw. Nws cov mis mis yog (ch3) 2s2 thiab nws lub cev hnyav yog 94.2 g \/ mol. Cov compound...Ntau -
![Binder rau luam ntawv inks thiab varnishes]()
Binder rau luam ntawv inks thiab varnishesZX-sc -04} muaj solubility zoo nyob rau hauv ethanol thiab zoo nitroocellulose compatibility, ceev forvent tso .Ntau -
![Hydroxypropyl Methyl Cellulose]()
Hydroxypropyl Methyl CelluloseZX-SC-01, hydroxypropyl methyl cellulose kuj xav tias yog ib hom non-ionic cellulose tov ether.Ntau -
![Hydroxypropyl Starch Ether]()
Hydroxypropyl Starch EtherZX-SC-02 yog hydroxypropyl starch ether (HPS) uas yog cov hmoov dawb dawb ua los ntawm cov nroj tsuag ntuj. Nws cov mis molecular yog (C6H10O5) n thiab ZX-SC -01 yog cov hmoov txhuv nplej siab...Ntau -
![Redispersible Polymer Hmoov]()
Redispersible Polymer HmoovZX-SC-03 yog cov khoom siv hluav taws xob hloov pauv tau yooj yim dua, uas tau muab faib ua ethylene / vinyl acetate copolymer, nrog polyvinyl cawv raws li kev tiv thaiv colloid, thiab cov hmoov...Ntau
Hydroxypropyl Methyl Cellulose yog dab tsi
Hydroxypropyl methyl cellulose (HPMC) yog semi-synthetic, inert, viscoelastic polymer muab los ntawm cellulose. Nws yog tsim los ntawm reacting methyl chloride thiab propylene oxide nrog cellulose nyob rau hauv lub xub ntiag ntawm sodium hydroxide. Cov tshuaj tiv thaiv no hloov cov pab pawg hydroxyl ntawm cov saw cellulose, qhia ob qho tib si methyl thiab hydroxypropyl substituents.
HPMC tau siv dav hauv ntau yam kev lag luam thiab cov khoom siv vim nws cov khoom tshwj xeeb, uas suav nrog:
Tswj viscosity
HPMC cov kev daws teeb meem nthuav tawm ntau qib viscosity, nyob ntawm seb qhov kev hloov pauv thiab qhov hnyav molecular ntawm cov polymer. Cov cuab yeej no tso cai rau kev tswj hwm rheological hauv cov qauv.
Zaj duab xis tsim
HPMC tuaj yeem tsim cov yeeb yaj kiab hloov pauv thaum txias tom qab ua kom sov hauv cov tshuaj, uas muaj txiaj ntsig zoo hauv cov ntawv thov xws li ntim khoom noj thiab txheej txheej.
Kev tuav dej
Nws muaj peev xwm tuav dej zoo, uas ua rau nws tsim nyog siv rau hauv cov ntaub ntawv tsim kho, cov nplaum, thiab tshuaj pleev ib ce.
Thickening Agent
HPMC ua cov thickener thiab stabilizer hauv emulsions, tshuaj pleev, thiab lwm yam khoom siv tu tus kheej.
Binder
Nws ua hauj lwm raws li ib tug nplaum binder nyob rau hauv zus tau tej cov ceramics, detergents, thiab ua liaj ua teb films.
Tso Tus Neeg Saib Xyuas
HPMC yog siv los ua cov ntsiav tshuaj tso tawm tus neeg sawv cev hauv kev lag luam tshuaj los pab txhawb kev tawg ntawm cov ntsiav tshuaj hauv plab hnyuv.
Hydroxypropyl Cellulose ua dab tsi rau lub cev?
Hydroxypropyl cellulose (HPC) yog ib qho uas tsis yog-ionic cellulose ether uas feem ntau yog siv los ua viscosity modifier, binder, zaj duab xis qub, thiab emulsifier nyob rau hauv ntau yam lag luam, suav nrog tshuaj, tshuaj pleev ib ce, zaub mov, thiab kev tsim kho. Nyob rau hauv cov tshuaj, nws yog siv feem ntau raws li ib tug ntsiav tshuaj excipient los yog txheej neeg sawv cev.
Thaum noj lossis siv rau ntawm daim tawv nqaij, HPC tsis paub tias muaj kev cuam tshuam tseem ceeb rau lub cev. Nws yog suav hais tias yog physiologically inert, txhais tau tias nws tsis hnov mob nrog lub cev cov ntaub so ntswg los yog kua. Nws lub luag haujlwm tseem ceeb yog ua raws li lub cev ntxiv uas tuaj yeem txhim kho qhov kev ntxhib los mos, ruaj khov, lossis xa cov tshuaj lossis cov khoom kom zoo nkauj uas nws suav nrog.
Hauv kev siv tshuaj, HPC tuaj yeem siv los txhim kho cov dej ntws ntawm cov hmoov, los ua cov ntaub ntawv hauv cov ntsiav tshuaj, lossis tsim lub tsho tiv thaiv ib puag ncig cov ntsiav tshuaj los tswj kev tso tawm ntawm cov khoom xyaw nquag. Raws li cov khoom siv txheej txheej, nws yuav pab ua kom lub ntsej muag tsis zoo, tiv thaiv cov ntsiav tshuaj los ntawm ib puag ncig kev puas tsuaj, thiab hloov kho tus nqi tso tawm ntawm cov tshuaj.
Txij li HPC tsis nqus mus rau hauv cov hlab ntsha, nws tsis ncaj qha cuam tshuam nrog cov kab mob lom lossis cov kabmob. Yog li ntawd, nws yog feem ntau suav hais tias muaj kev nyab xeeb rau kev siv hauv cov khoom uas tuaj yeem tiv nrog tib neeg lub cev. Txawm li cas los xij, zoo li txhua yam tshuaj, ib tus neeg rhiab heev lossis ua xua rau HPC tuaj yeem ua tau, txawm tias cov no tsis tshua muaj. Yog tias muaj keeb kwm ntawm hypersensitivity rau cellulose ethers, cov tib neeg yuav tsum tau ceev faj.
Hydroxypropyl Methyl Cellulose siv rau dab tsi?
Hydroxypropyl methyl cellulose (HPMC) yog ntau yam cellulose ether muab los ntawm methyl cellulose. Nws yog dav siv thoob plaws ntau qhov kev lag luam vim nws lub peev xwm los muab kev tswj hwm kev tso tawm ntawm cov tshuaj nquag, ua raws li cov ntawv khi, thickener, stabilizer, thiab zaj duab xis qub.
Hauv kev lag luam khoom noj khoom haus, HPMC ua haujlwm ua tus neeg ua kom tuab thiab emulsifying, txhim kho kev ntxhib los mos thiab qhov ncauj ntawm cov khoom noj. Nws kuj tseem siv tau los hloov cov rog thiab tuaj yeem pab txo cov calories hauv cov zaub mov.
Hauv kev lag luam kws tshuaj, HPMC yog siv los ua ib qho kev pabcuam ncaj qha, kev sib cais, kev sib khi, thiab ua cov txheej txheem rau cov ntsiav tshuaj. Raws li cov txheej txheem, nws tuaj yeem siv los tswj kev tso tawm cov khoom xyaw nquag, tiv thaiv cov ntsiav tshuaj los ntawm ib puag ncig yam, thiab txhim kho kev ua raws li tus neeg mob los ntawm kev npog qhov tsis kaj siab.
Kev tsim kho kev lag luam tso siab rau HPMC ua ib feem ntawm cov khoom siv ziab khaub ncaws, xws li cov nplaum, grouts, thiab tus kheej-leveling compounds. Nws txhim kho cov dej tuav thiab ua haujlwm ntawm cov khoom sib tov no yam tsis muaj kev cuam tshuam rau lawv lub sijhawm qhib lossis qhov chaw zaum kawg.
Tsis tas li ntawd, hauv kev kho kom zoo nkauj thiab kev saib xyuas tus kheej, HPMC ua tus neeg sawv cev gelling, muab cov creamy sib xws rau cov tshuaj pleev ib ce thiab tshuaj pleev. Nws kuj tuaj yeem siv los ua kom ruaj khov emulsions thiab tswj cov khoom rheological.
Vim nws qhov xwm txheej biodegradable thiab tsis muaj tshuaj lom, HPMC yog qhov kev xaiv zoo tshaj plaws rau kev siv ib puag ncig. Nws feem ntau lees paub tias muaj kev nyab xeeb (GRAS) los ntawm US Food and Drug Administration (FDA) rau nws txoj kev siv.
Puas yog Hydroxypropyl Cellulose muaj kev nyab xeeb hauv cov khoom ntxiv?
Hydroxypropyl cellulose (HPC) feem ntau lees paub tias muaj kev nyab xeeb (GRAS) los ntawm US Food and Drug Administration (FDA) siv los ua cov khoom noj tsis ncaj rau hauv cov khoom uas tiv tauj cov zaub mov. Thaum nws los txog rau cov khoom noj khoom haus, HPC tuaj yeem siv los ua cov viscosity enhancer, binder, los yog ntsiav tshuaj excipient.
Hauv cov tshuaj, HPC feem ntau yog siv rau nws cov gel-forming thiab film-forming zog, uas tuaj yeem txhim kho qhov kev ntxhib los mos ntawm cov hmoov los yog pab txhawb rau kev tsim cov ntsiav tshuaj-tso tawm. Raws li ib qho ntxiv excipient, nws yog suav hais tias muaj kev nyab xeeb thaum siv nyob rau hauv qhov kev siv tau txhua hnub txwv thiab raws li kev tsim khoom zoo.
Txawm li cas los xij, nws yog ib qho tseem ceeb rau cov tuam txhab lag luam kom ua raws li cov txheej txheem tswj hwm thiab xyuas kom meej tias tag nrho cov khoom xyaw, suav nrog HPC, tau teev raug rau ntawm cov khoom lag luam. Cov neeg siv khoom yuav tsum sab laj nrog cov kws kho mob ua ntej pib noj cov tshuaj noj tshiab, tshwj xeeb tshaj yog tias muaj cov kab mob hauv qab los yog muaj peev xwm cuam tshuam nrog lwm cov tshuaj.
Hydroxypropyl methyl cellulose (HPMC) yog ib qho derivative ntawm cellulose nrog ntau yam kev siv hauv kev lag luam, suav nrog cov khoom siv hauv kev tsim kho. Cov kev qhia tseem ceeb uas txheeb xyuas qhov zoo thiab qhov tshwj xeeb ntawm HPMC suav nrog:
viscosity:Ntsuas hauv mPa·s (millipascal vib nas this), viscosity qhia qhov fluidity ntawm HPMC cov kev daws teeb meem. Cov qib sib txawv ntawm HPMC muaj qhov sib txawv viscosity, uas cuam tshuam rau cov khoom ntws thiab kev coj tus cwj pwm.
Cov ntsiab lus Methyl (M):Qhov kev ntsuas no qhia txog kev faib ua feem ntawm methyl ether pawg hauv HPMC molecule thiab cuam tshuam nws cov dej solubility thiab rhiab heev rau cov tshuaj alkaline.
Hydroxypropyl Cov ntsiab lus (H):Qhov no qhia txog tus nqi ntawm hydroxypropyl pawg hauv HPMC molecule thiab cuam tshuam rau cov khoom muaj peev xwm thickening thiab khov-thaw stability.
Loss ntawm ziab:Qhia tawm raws li feem pua, nws qhia txog cov ntsiab lus dej hauv HPMC, uas yuav tsum qis kom ntseeg tau cov khoom ruaj khov thiab sib xws.
Tus nqi PH:HPMC cov kev daws teeb meem yuav tsum muaj tus nqi pH nyob rau hauv ib qho chaw, feem ntau ze rau nruab nrab, kom ntseeg tau tias muaj kev sib raug zoo nrog ntau yam khoom siv.
Qhov tsos:HPMC yuav tsum muaj qhov zoo sib xws, feem ntau yog cov hmoov dawb dawb los yog cov granules.
Solubility:Zoo solubility hauv dej yog qhov tseem ceeb, nrog rau qib solubility nyob ntawm cov qauv molecular ntawm HPMC.
Heavy Hlau Cov ntsiab lus:Cov ntsiab lus ntawm cov hlau hnyav xws li txhuas, cadmium, mercury, thiab chromium yuav tsum muaj qis dua cov kev txwv kom ntseeg tau ib puag ncig thiab kev nyab xeeb.
Chloroform Extract:Qhov kev ntsuas no qhia txog cov dej tsis huv uas tsis yog dej soluble thiab yuav tsum tsawg heev.
Specific Optical Rotation:Qhov no yog ib qho kev ntsuas ntawm qhov sib xyaw ua ke purity thiab optical kev ua haujlwm.
Cov ntsiab lus tshauv:Cov inorganic residue tshuav tom qab incineration, qhia raws li ib feem pua; nws yuav tsum qis kom qhia tau tias muaj kev sib kis tsawg.
Sieve Analysis:Txiav txim siab qhov loj me me ntawm HPMC hmoov, ua kom nws ua tau raws li qhov yuav tsum tau ua kom yooj yim ntawm kev tuav thiab daim ntawv thov.
Cov ntsuas no yog qhov tseem ceeb rau kev qhia meej cov khoom ntawm HPMC thiab txiav txim siab nws qhov tsim nyog rau ntau daim ntawv thov hauv kev tsim kho, qhov twg nws ua haujlwm ua cov thickener, nplaum, lossis tus neeg saib xyuas-tso tawm, thiab lwm yam haujlwm. Cov neeg tsim khoom thiab cov neeg muag khoom feem ntau muab cov ntaub ntawv qhia ntxaws ntxaws uas qhia txog cov kev txwv no rau txhua qib ntawm HPMC muab.
Hydroxypropyl methyl cellulose (HPMC) yog ntau yam cellulose ether uas tau los ntawm cellulose los ntawm kev hloov ib nrab nrog methyl thiab hydroxypropyl pawg. HPMC yog cais raws li nws cov ntsiab lus methoxyl thiab hydroxypropoxyl, uas txiav txim siab nws cov solubility, viscosity, thiab daim ntawv thov haum.
Cov qeb tseem ceeb ntawm HPMC suav nrog:
HPMC E4 ** -Cov qib no muaj kev hloov pauv qis thiab yog qhov tseem ceeb tsis txaus ntseeg hauv dej txias tab sis swells mus rau qhov sib xws ntawm gel. Nws feem ntau yog siv rau hauv cov nplaum nplaum kub-kua nplaum, textile sizing, thiab ua cov thickener hauv cov ntawv thov zaub mov uas yuav tsum tau ua kom sov.
** HPMC E5 ** -Hom no yog me ntsis soluble nyob rau hauv dej txias thiab feem ntau yog siv nyob rau hauv kev tsim kho cov ntaub ntawv raws li ib tug dej-retaining tus neeg sawv cev nyob rau hauv mortar thiab pob zeb, raws li zoo raws li nyob rau hauv pharmaceuticals thiab tshuaj pleev ib ce.
HPMC E6
Qib no yog ntau soluble hauv dej txias thiab muaj viscosity nruab nrab. Nws yog dav siv nyob rau hauv cov xim thiab lub tsev kev lag luam raws li ib tug thickener thiab rheology modifier, nyob rau hauv adhesives, thiab nyob rau hauv cov khoom noj khoom haus kev lag luam.
HPMC E7
Hom no muaj ntau dua solubility thiab viscosity thiab yog siv nyob rau hauv tib daim ntaub ntawv raws li E6, tab sis feem ntau yuav tsum tau tsawg dua HPMC rau cov kev xav tau.
HPMC E8
Qhov no yog qib viscous heev uas yog soluble tag nrho hauv dej txias. Nws yog siv rau kev ua haujlwm siab, suav nrog hauv cov khoom siv hauv tsev siab, cov nplaum, thiab ua tus neeg sawv cev tso tawm rau cov txheej txheem txheej txheem.
Hydroxypropyl Starch Ether yog dab tsi
Hydroxypropyl starch ether yog cov hmoov txhuv nplej siab hloov pauv uas yog tsim los ntawm cov hmoov txhuv nplej siab reacting, uas yog polysaccharide uas muaj cov piam thaj, nrog propylene oxide nyob rau hauv alkaline tej yam kev mob. Qhov kev hloov kho qhia cov pab pawg hydroxypropyl (-CH2CHOH-CH3) rau hauv cov hmoov txhuv nplej siab, hloov nws cov khoom siv physicochemical.
Cov kev hloov kho no ua rau cov hmoov txhuv nplej siab nrog cov yam ntxwv zoo dua piv rau cov hmoov txhuv nplej siab, suav nrog:
● Enhanced Solubility: Hydroxypropyl starch ethers nyiam solubility zoo dua hauv dej txias piv rau cov hmoov txhuv nplej siab, uas feem ntau tsuas yog dej-soluble ntawm qhov kub siab dua.
●Altered Viscosity: Cov ethers no tuaj yeem tso saib cov viscosity sib txawv, uas tuaj yeem kho tau raws li qib kev hloov pauv thiab hom hmoov txhuv nplej siab siv los ua cov khoom siv hauv paus.
● Txhim khu kev ruaj ntseg: Cov pab pawg hydroxypropyl tuaj yeem txhim kho kev ruaj ntseg thiab txo qis retrogradation, uas yog qhov nyiam ntawm cov hmoov txhuv nplej siab rau recrystallize lub sij hawm thiab hloov kev ntxhib los mos.
● Ua kom muaj zog rau Enzymatic Hydrolysis: Kev hloov kho tshuaj ua rau cov hmoov txhuv nplej siab tsis tshua muaj zog rau cov enzymes xws li amylase, uas ua rau cov hmoov txhuv nplej siab ua suab thaj.
Hydroxypropyl starch ethers pom cov ntawv thov hauv ntau qhov kev lag luam, suav nrog:
● Khoom noj khoom haus kev lag luam: Raws li ib tug thickener, stabilizer, los yog texturizer nyob rau hauv cov kua ntses, hnav khaub ncaws, confectionery, thiab ci.
● Pharmaceutical Industry: Raws li kev sib khi, kev sib cais, lossis kev tswj-tso tus neeg sawv cev hauv cov tshuaj ntsiav tshuaj.
● Paper Kev Lag Luam: Ua tus neeg sawv cev sizing los txhim kho daim ntawv tiv thaiv dej thiab number case.
● Kev Lag Luam Textile: Ua ib feem ntawm cov neeg ua haujlwm sizing rau cov xov paj lossis ua tus neeg sawv cev rau cov ntaub.
Kev nyab xeeb thiab tsim nyog ntawm hydroxypropyl starch ethers hauv cov ntawv thov tshwj xeeb yuav tsum ua raws li cov kev cai thiab cov qauv tsim los ntawm cov tub ceev xwm, xws li FDA rau cov khoom noj thiab tshuaj hauv Tebchaws Meskas. Cov neeg tsim khoom yuav tsum xyuas kom meej tias cov hmoov txhuv nplej siab hloov tau raws li kev nyab xeeb thiab tau sau npe zoo thaum siv hauv cov khoom siv.
Hydroxypropyl Starch Ether siv rau dab tsi?
Hydroxypropyl starch ether (HPS) yog cov hmoov txhuv nplej siab hloov kho uas tau siv dav rau nws cov khoom tshwj xeeb physicochemical. Nws yog tsim los ntawm kev hloov qee pawg hydroxyl hauv cov hmoov txhuv nplej siab nrog hydroxypropyl pawg. Kev hloov kho txhim kho cov solubility, stability, thiab thickening zog ntawm starch.
HPS muaj cov ntawv thov hauv ntau qhov kev lag luam:
Kev lag luam zaub mov:HPS yog siv los ua cov thickener, stabilizer, thiab emulsifier hauv cov khoom noj. Nws lub peev xwm los tsim ib qho kev daws teeb meem tsis muaj turbidity ua rau nws tsim nyog siv rau hauv dej haus, jellies, kua ntses, thiab khoom noj khoom haus.
Pharmaceutical Industry:Hauv kev lag luam kws kho mob, HPS ua haujlwm raws li kev sib khi, tus neeg sawv cev disintegrating, thiab muab tso rau hauv cov ntsiav tshuaj formulations. Nws cov khoom hloov kho txhim khu cov flowability thiab compressibility ntawm hmoov.
Ua Ntawv:HPS yog siv los ua tus neeg sawv cev hauv kev tsim cov ntawv los txhim kho cov khoom saum npoo ntawm daim ntawv thiab txo cov number case nkag mus, pab txhawb kev luam ntawv zoo dua.
Kev lag luam Textile:Nws ua raws li tus neeg saib xyuas dej tuav hauv kev ua textile, pab qhov loj ntawm cov xov paj thiab txhim kho tag nrho cov ntaub zoo.
Kev tsim kho kev lag luam:Hydroxypropyl hmoov txhuv nplej siab ether tuaj yeem siv los ua cov dej txo qis hauv cov pob zeb, txhim kho kev ua haujlwm tsis muaj dej ntxiv, uas tuaj yeem ua rau muaj zog thiab ruaj khov.
Tshuaj pleev ib ce:Hauv cov tshuaj pleev ib ce, HPS ua haujlwm ua cov viscosity enhancer thiab stabilizer nyob rau hauv cov tshuaj pleev ib ce, cream, thiab lwm yam khoom tu tus kheej.
Vim nws muaj ntau yam xwm txheej, HPS muaj nuj nqis rau nws cov yam ntxwv ua haujlwm hauv ntau daim ntawv thov kev lag luam, muab kev ua kom zoo dua qub thiab cov khoom zoo. Txawm li cas los xij, zoo li txhua yam khoom siv ntxiv, kev siv HPS raug tswj hwm, thiab cov tuam txhab tsim khoom yuav tsum ua raws li cov qauv kev nyab xeeb thiab cov ntawv sau npe.
Hydroxypropyl yog dab tsi los ntawm?
Hydroxypropyl pawg tau nkag mus rau hauv ntau yam ntaub ntawv los ntawm kev hloov kho tshuaj. Piv txwv li, nyob rau hauv cov ntsiab lus ntawm hydroxypropyl cellulose (HPC) thiab hydroxypropyl starch ether, cov hydroxypropyl pawg tau ntxiv rau cov cellulose los yog starch polymers los ntawm cov txheej txheem uas muaj propylene oxide.
Nyob rau hauv cov ntaub ntawv ntawm hydroxypropyl cellulose:
● Native cellulose, tau los ntawm cov phab ntsa ntawm cov nroj tsuag los yog ntoo, yog reacted nrog sodium hydroxide los tsim alkali cellulose.
● Propylene oxide ces siv los qhia cov pab pawg hydroxypropyl mus rau alkali cellulose.
● Lub degree ntawm kev hloov pauv (tus naj npawb ntawm hydroxypropyl pawg ntxiv rau ib chav tsev piam thaj hauv cov pob txha cellulose) tuaj yeem hloov kho kom ua tiav cov khoom xav tau.
Rau hydroxypropyl starch ether:
● Cov hmoov txhuv nplej siab, uas yog ib qho polysaccharide tsim los ntawm cov piam thaj hauv cov dej, tau tawg mus rau hauv dej.
● Ib qho alkaline catalyst, xws li sodium hydroxide, yog ntxiv rau cov hmoov txhuv nplej siab kom o cov granules thiab ua rau cov pab pawg hydroxyl reactive.
●Tom qab ntawd propylene oxide ntxiv rau cov tshuaj tiv thaiv nrog cov pab pawg hydroxyl ntawm cov hmoov txhuv nplej siab, tsim cov pab pawg hydroxypropyl.
● Cov tshuaj tiv thaiv kab mob, xws li lub sij hawm, qhov kub thiab txias, thiab molar ratio ntawm reagents, yog ua tib zoo tswj kom optimize lub degree ntawm hloov thiab cov yam ntxwv ntawm cov hmoov txhuv nplej siab hloov.
Ob qho tib si hydroxypropyl cellulose thiab hydroxypropyl starch ether yog cov piv txwv ntawm yuav ua li cas hydroxypropyl pawg tuaj yeem raug tshuaj grafted mus rau ib txwm tshwm sim polymers los tsim cov ntaub ntawv nrog cov khoom zoo tsim nyog rau ntau yam kev siv hauv kev lag luam.
Taw qhia rau Starch Ether
Qhov ntau thiab feem ntau siv yog qos yaj ywm starch, tapioca starch, pob kws hmoov txhuv nplej siab, nplej hmoov nplej, thiab lwm yam. Piv nrog cereal starches nrog cov roj ntau dua thiab cov ntsiab lus protein, cov hmoov txhuv nplej siab ntawm cov qoob loo xws li qos yaj ywm thiab tapioca starch yog purer.
Starch yog polysaccharide polymer compound uas muaj cov piam thaj. Muaj ob hom molecules, linear thiab branched, hu ua amylose (cov ntsiab lus txog 20%) thiab amylopectin (cov ntsiab lus txog 80%). Txhawm rau txhim kho cov hmoov txhuv nplej siab siv hauv cov khoom siv hauv tsev, cov txheej txheem ntawm lub cev thiab tshuaj siv tau los hloov kho kom nws cov khoom tsim nyog rau cov kev xav tau ntawm cov khoom siv hauv tsev rau ntau lub hom phiaj.
Etherified starch suav nrog ntau hom khoom, xws li carboxymethyl starch ether (CMS), hydroxypropyl starch ether (HPS), hydroxyethyl starch ether (HES), cationic starch ether, thiab lwm yam. Feem ntau siv hydroxypropyl starch ether.
Lub luag haujlwm ntawm Starch Ether hauv mortar
Thicken lub mortar, nce sag resistance, sag resistance, thiab rheology ntawm mortar
Piv txwv li, nyob rau hauv kev tsim kho ntawm cov pobzeb nplaum, putty, thiab plastering mortar, tshwj xeeb tshaj yog tam sim no hais tias cov neeg kho tshuab txau yuav tsum muaj fluidity siab, piv txwv li, nws yog ib qho tseem ceeb nyob rau hauv ib tug gypsum-raws li mortar (machine sprayed gypsum xav tau high fluidity tab sis yuav ua rau hnyav sagging. Starch ether tuaj yeem ua rau qhov tsis xws luag).
Liquidity thiab sag resistance feem ntau contradictory, thiab qhov nce ntawm fluidity yuav ua rau poob ntawm sag resistance. Cov tshuaj khib nyiab nrog cov khoom siv rheological tuaj yeem daws qhov tsis sib haum xeeb tias thaum siv lub zog sab nraud, qhov viscosity yuav txo qis, thiab kev ua haujlwm tau zoo thiab cov twj tso kua mis yuav txhim kho. Thaum lub zog sab nraud raug tshem tawm, lub viscosity yuav nce thiab txhim kho lub sag resistance.
Rau qhov tam sim no ntawm cov pobzeb nce ntxiv, ntxiv cov hmoov txhuv nplej siab ether tuaj yeem txhim kho cov pobzeb nplaum nplaum ua haujlwm.
Txuas lub sijhawm qhib
Nws tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm cov pobzeb tshwj xeeb rau cov nplais nplaum nrog cov sijhawm qhib txuas ntxiv (Class E, txuas ntxiv ntawm 20min mus txog 30min mus txog 0.5MPa).
Txhim kho cov khoom nto
Cov hmoov txhuv nplej siab ether tuaj yeem ua rau saum npoo ntawm gypsum-based thiab cement mortar smooth, yooj yim rau kev thov, thiab muaj qhov zoo nkauj zoo nkauj. Nws yog ib qho tseem ceeb rau plastering mortars thiab nyias-txheej mortars zoo li putty.
Lub Mechanism of Action ntawm Starch Ether
Thaum cov hmoov txhuv nplej siab ether yaj hauv dej, nws yuav sib npaug sib npaug hauv cov cement mortar system. Vim tias cov hmoov txhuv nplej siab ether molecules muaj cov qauv sib txuas thiab raug them tsis zoo, lawv yuav adsorb zoo them cov cement hais. Raws li tus choj hloov pauv, cov cement tuaj yeem txuas nrog muab cov slurry muaj txiaj ntsig ntau dua, txhim kho cov nyhuv los tiv thaiv sagging.
Qhov txawv ntawm Starch Ether thiab Cellulose Ether
Cov hmoov txhuv nplej siab ether tuaj yeem txhim kho cov khoom tiv thaiv sagging thiab tiv thaiv plam ntawm mortar.Txawm li cas los xij, cellulose ethers feem ntau tsuas yog ua kom cov viscosity thiab dej tuav ntawm lub cev, tab sis tsis yog cov khoom tiv thaiv sagging thiab tiv thaiv plam.
Thickening thiab viscosity: feem ntau, viscosity ntawm cellulose ether yog txog kaum tawm txhiab, thaum lub viscosity ntawm starch ether yog ob peb puas mus rau txhiab, tab sis qhov no tsis txhais hais tias starch ether tsis tuab li cellulose ether nyob rau hauv thickening mortar. Lub thickening mechanism ntawm ob yog txawv.
Piv nrog rau cellulose ether, hmoov txhuv nplej siab ether tuaj yeem nce qhov txiaj ntsig ntawm cov pobzeb nplaum, yog li txhim kho nws cov kev ua haujlwm tsis zoo.
Cua-entraining: cellulose ether muaj zog cua-entraining zog, thaum starch ether tsis muaj huab cua-entraining zog.
Molecular qauv ntawm cellulose ether. Txawm hais tias ob qho tib si hmoov txhuv nplej siab thiab cellulose muaj cov piam thaj molecules, lawv cov muaj pes tsawg leeg sib txawv. Kev taw qhia ntawm tag nrho cov piam thaj molecules hauv cov hmoov txhuv nplej siab yog tib yam, thaum cellulose tsuas yog qhov sib txawv, uas yog, kev taw qhia ntawm txhua cov piam thaj uas nyob ib sab yog qhov sib txawv. Qhov sib txawv ntawm cov qauv no kuj txiav txim siab qhov sib txawv ntawm cov khoom ntawm cellulose thiab starch.
Peb lub Hoobkas
Cov neeg ua haujlwm tseem ceeb ntawm peb lub tuam txhab muaj kev paub dhau los hauv kev lag luam tshuaj lom neeg thiab ntau tshaj 20 xyoo ntawm kev ua haujlwm hauv ntiaj teb cov tuam txhab thoob ntiaj teb, thiab paub txog kev lag luam thoob ntiaj teb, kev cai lag luam thiab kev lag luam tshuaj hauv tsev.Our lag luam tau koom nrog ntau lub teb chaws, dav muag hauv Middle East, Central thiab Western Asia, Indonesia, Is Nrias teb, Bangladesh, Russia, thiab lwm lub tebchaws.
FAQ
Raws li ib qho ntawm cov kws tshaj lij tshwj xeeb tshuaj thiab ppe tuam ntxhab thiab cov muag khoom hauv Suav teb, peb tau tshwj xeeb los ntawm cov khoom zoo thiab cov nqi sib tw. Thov so assured mus yuav customized tshwj xeeb tshuaj thiab ppe los ntawm peb lub hoobkas.