HydroxyPropyl Starch Ethere (HPS)thiabCellulose etheryog ob qho kev siv cov khoom siv sib xyaw ua ke, xws li kab cug, muaj cov khoom sib txawv ntawm cov khoom siv raw, thiab lwm yam , daim ntawv thov, thiab nqi.
1. Raw Khoom Siv Khoom Siv thiab Cov Qauv Tshuaj
HydroxyPropyl Starch Ethere (HPS)
HPS raws li cov hmoov txhuv nplej siab thiab tau txais los ntawm etherification kev hloov tshuaj tiv thaiv. Nws lub ntsiab raw khoom yog pob kws, nplej, qos yaj ywm thiab lwm yam nroj tsuag. Cov hmoov txhuv nplej siab lwg me me tau tsim cov khoom noj qab zib sib txuas los ntawm α-1,4-glycosidic bonds thiab ib qho me me ntawm α-1,6-glycosidic bonds. Tom qab hydroxyprore, hydrophilic hydroxyprodyl group yog qhia rau HPS cov qauv molecular, muab nws kom paub txog cov dej ua kom huv thiab hloov kho.
Cellulose ether
Cellulose muaj kev hais ua tau yog muab tau los ntawm cov ntaub ntawv ntuj ntuj, xws li paj rwb lossis ntoo. Cellulose yog suav nrog cov dej qab zib ua ke los ntawm β-1,4-glycosidic bonds. Cov neeg muaj kev hais ua ke ntawm cov neeg uas muaj kev hais txog hydroxypropylulose (HECCC), thiab lwm yam tshuaj lom neeg thiab muaj cov tshuaj ruaj khov thiab cov khoom muaj zog.
2. Lub zog lub cev
Cov yam ntxwv ntawm HPS
Thickening: HPS muaj cov nyhuv zoo heev, tab sis piv nrog cellulose ether, nws lub peev xwm thickened yog me ntsis tsis muaj zog.
Dej khaws cia: HPS muaj kev tswj kav dej me me thiab yog haum rau cov khoom siv hauv ib nrab.
Kev Ua Haujlwm: HPS tuaj yeem txhim kho qhov ua haujlwm ntawm cug thiab txo sagging thaum tsim kev tsim kho.
Qhov kub kub kuj: HPS yog rhiab heev rau qhov kub thiab txias thiab muaj kev cuam tshuam loj heev los ntawm qhov kub kub.
Cov yam ntxwv ntawm cov kws ua haujlwm cellulose
Thickening: cellulose ether muaj cov nyhuv tuab tuab thiab tuaj yeem nce cov viscosity ntawm cug cais lossis ua kom huv.
Dej khaws cia: Cellulose ether muaj cov dej zoo heev, tshwj xeeb tshaj yog nyob rau lub sij hawm qhib ntawm lub tshuaj khib thiab tiv thaiv cov dej ntau dhau.
Kev ua haujlwm ether yog zoo tshaj plaws hauv kev txhim kho lub zog ua haujlwm thiab tuaj yeem txo cov teeb meem xws li kev tawg thiab hmoov.
Kub Kuj: Cellulose ether muaj muaj zog hloov kho rau qhov kub hloov thiab muaj peev xwm ua tau zoo.
3. Daim ntawv thov cuam tshuam
Daim ntawv thov cov nyhuv ntawmTus dab tom hu dabtsi
Hauv cov cug qhuav, HPS feem ntau ua lub luag haujlwm ntawm kev txhim kho lub zog ua haujlwm, txhim kho cov dej tuav cia, thiab txo kev tawm tsam thiab cais. Nws muaj kev lag luam thiab haum rau siv hauv cov xwm txheej nrog kev tswj hwm siab yuav tsum muaj, xws li txheej txheem sab hauv Putty, pem teb kho kab sib xyaw, thiab lwm yam.
Daim ntawv thov cov nyhuv ntawm cellulose ether
Neeg muaj neeg ua haujlwmtau siv dav hauv kev ua yeeb yam siab, cov nplaum nplaum, gypsum-based cov ntaub ntawv thiab sab nrauv phab ntsa rwb thaiv tsev tshuab. Nws cov khoom siv tuab zoo tshaj plaws thiab cov dej tsis yeem tsim kho tau rau cov haujlwm uas muaj cov khoom lag luam zoo ntawm kev tsim kho thiab cov khoom tiav.
4. Nqi thiab kev tiv thaiv ib puag ncig
Nqi:
HPS muaj tus nqi qis dua thiab haum rau siv cov lag luam nqi nqi. Cellulose muaj kev hais ua ke yog kim kim, tab sis muaj kev ua tau zoo thiab raug nqi rau cov haujlwm uas xav tau.
Kev tiv thaiv ib puag ncig:
Ob qho tib si yog muab tau los ntawm cov ntaub ntawv ntuj thiab muaj cov khoom lag luam zoo. Txawm li cas los xij, vim tias cov tshuaj reagents tsawg dua yog noj hauv cov txheej txheem ntau lawm, nws lub nra hnyav yuav qis dua.
5. Xaiv lub hauv paus
Tej Kev Yuav Tsum Ua Tau Zoo Yuav Tsum Tau: Yog tias koj muaj cov dej num siab rau thickening thiab dej khaws cia, koj yuav tsum xaiv cellulose ether; Rau cov ntaub ntawv uas raug nqi-rhiab tab sis yuav tsum tau qee yam kev txhim kho hauv kev ua haujlwm, koj tuaj yeem txiav txim siab siv hps.
Kev Siv Cov Xwm Txheej: Kev Tsim Kho Hluav Taws Xob, Sab Nrauv Ntsa Rwb Thaiv Tsev, cov khoom siv nplaum uas xav tau rau cellulose ntau; Txog kev sib raug zoo sab hauv phab ntsa putty lossis pib cort, hps tuaj yeem muab kev lag luam thiab cov kev daws teeb meem.
HydroxyPropyl Starch etherthiabCellulose ether Txhua tus muaj lawv tus kheej zoo thiab lawv ua si sib txawv hauv cov ntaub ntawv tsim tsev. Cov kev xaiv yuav tsum muaj kev txiav txim siab raws li kev xav tau ntawm cov kev xav tau ua tau zoo, kev tsim kho ib puag ncig, kev tsim kho ib puag ncig ntawm txoj haujlwm tshwj xeeb kom ua tiav cov nyhuv zoo tshaj plaws.
Lub Sijhawm Post: Nov-21-2024