Lub luag haujlwm ntawm Hydroxypropyl Starch Ethereet (HPS) hauv coluture

Starch ether yog ib lo lus dav dav rau cov chav kawm hloov kho, tsis muaj siv rau hauv cov duab Starst, uas tau siv tshuaj txhua hnub, roj av thiab lwm yam kev lag luam. Niaj hnub no peb tseem piav qhia lub luag haujlwm ntawm cov hmoov txhuv nplej siab ether hauv cug.

Taw qhia rau Starch Ethere

Cov hmoov txhuv nplej siab ntau dua li cov hmoov txhuv nplej siab, thiab cov hmoov nplej pob kws xws li cov qos yaj ywm thiab cov hmoov txhuv nplej siab

Cov hmoov txhuv nplej siab yog polysaccharide macromolecular composed ntawm glucose. Muaj ob hom molecules, lineg thiab ceg, hu ua amylose (txog 20%) thiab amylopectin (li 80%). Txhawm rau txhim kho cov khoom ntawm cov ntses hnub qub siv hauv cov ntaub ntawv hauv tsev, siv lub cev thiab tshuaj siv rau cov khoom sib txawv ntawm cov ntaub ntawv hauv tsev.

Ethered cov hmoov txhuv nplej siab suav nrog ntau hom khoom. Xws li Carboxymethyl Starch Ethere (CMS), HPS), CARSIC Wydch ether (Hydrotic Starch Equently siv hydroxyprropyl starch ether.

Lub luag haujlwm ntawm hydroxypropyl hmoov ether hauv cug

1) Thicken lub tshuaj khib, nce cov kev tawm tsam sagging, tiv thaiv kev ua kom zoo nkauj thiab rheological cov khoom tshuaj

Piv txwv li, hauv kev tsim kho cov nplais nplaum, muab cov tshuaj khib nyiab, xws li yog qhov tshwj xeeb yog qhov siab, nws yog qhov tshwj xeeb tshaj plaws, nws yog qhov tshwj xeeb ether ether tuaj yeem ua rau qhov tsis muaj peev xwm no).
FLUY thiab SAG RESORANCE feem ntau cuam tshuam, thiab nce fundity yuav ua rau txo qis hauv sag tiv thaiv. Tshuaj khib nrog cov khoom siv hluav taws xob tuaj yeem kho tau cov kev tsis sib haum xeeb, ua kom muaj zog, thaum lub zog sab nraud, thiab thaum lub zog sab nraud, thiab thaum lub zog sab nraud, thiab thaum lub zog sab nraud, thiab thaum lub zog sab nraud, thiab thaum lub zog txawv txav thiab cov sagging tsis tau zoo dua.
Rau cov txheej txheem tam sim no ntawm thaj chaw nce ntxiv, ntxiv cov hmoov txhuv nplej siab ether tuaj yeem txhim kho lub pob zeb tsis kam ntawm cov nplais nplaum.
2) teev sijhawm txuas ntxiv
Rau cov nplaum nplaum, nws tuaj yeem ua tau raws li cov ntaub ntawv tshwj xeeb ntawm cov nplaum tshwj xeeb (chav kawm e, 20min txuas mus txog 30min mus txog 0.5mpa) uas txuas lub sijhawm qhib.

Txhim kho cov khoom saum npoo

Starch ether tuaj yeem ua rau ntawm gypsum base thiab cement Collu du, yooj yim mus thov, thiab muaj cov nyhuv zoo nkauj. Nws yog cov ntsiab lus zoo rau plastering collu thiab nyias txheej zoo nkauj xws li putty.
Mechanism ntawm kev ua ntawm hydroxyprropyl starch ether

Thaum cov hmoov txhuv nplej siab ether dissolves hauv dej, nws yuav tsis sib xws dispersed nyob rau hauv lub txiv neej cug cort system. Vim tias cov hmoov txhuv nplej siab ither Molecule muaj tus qauv network thiab ua rau cov kev hloov pauv ntawm cov txiv ntoo thiab ua rau cov nyhuv los ntawm kev tawm tsam.
Qhov sib txawv ntawm hydroxypropyl hmoov ether thiab cellulose ether

1. Cov hmoov txhuv nplej siab ether tuaj yeem txhim kho kev tiv thaiv zoo thiab tawm tsam cov yam ntxwv ntawm cug

Cellulose ether feem ntau tuaj yeem txhim kho viscosity thiab dej khaws cia ntawm lub system tab sis tsis tuaj yeem txhim kho cov khoom siv los ntawm kev tawm tsam thiab kev tawm tsam cov khoom uas tsis tiv thaiv.

2. Thickening thiab viscosity

Feem ntau, cov viscosity ntawm cellulose ntawm cov hmoov txhuv nplej siab ether yog ntau pua etle ether, thiab qhov ua kom tuab ntawm ob qho sib txawv.

3. Kev tawm tsam ib qho kev ua tau zoo

Piv nrog cov cellulose muaj kev muaj cai hais tias cov neeg muaj kev paub ua ke tuaj yeem nce thawj cov txiaj ntsig ntawm cov pobzeb, yog li kev txhim kho lawv cov khoom tawm tsam.

4. Cua-Entraining

Cellulose ether muaj cov cuab yeej huab cua muaj zog, thaum cov hmoov txhuv nplej siab ether tsis muaj cua khoom.

5. Molecular qauv ntawm cellulose ether

Txawm hais tias ob qho tib si hmoov txhuv nplej siab thiab cellulose yog tsim los ntawm cov piam thaj molecules, lawv txoj kev muaj pes tsawg leeg sib txawv. Qhov kev taw qhia ntawm txhua cov piam thaj hauv cov hmoov av hauv cov hmoov txhuv nplej siab yog tib yam, thiab cov kev taw qhia ntawm txhua qhov chaw nyob ze ib sab qab. Cov txheej txheem sib txawv no tseem txiav txim qhov sib txawv hauv cov yam ntxwv ntawm cellulose thiab hmoov txhuv nplej siab.