Starch ether, uas yog ib qho tseem ceeb ntawm kev hloov kho tshuaj, ua lub luag haujlwm tseem ceeb hauv cov khoom siv hauv tsev. Nws yog ib qho polymer tau los ntawm kev hloov kho cov hmoov txhuv nplej siab, uas tuaj yeem txhim kho kev ua tau zoo ntawm cov khoom siv hauv tsev.
1. Cov khoom tseem ceeb ntawm cov hmoov txhuv nplej siab ethers
Starch ether yog non-ionic, dej-soluble polymer compound nrog ntau hydroxyl thiab ether bonds hauv nws cov qauv molecular. Cov pab pawg tshuaj no muab cov hmoov txhuv nplej siab ethers zoo heev thickening, dej tuav, lubrication thiab cov khoom nplaum. Raws li kev hloov kho tshuaj sib txawv, cov hmoov txhuv nplej siab ethers tuaj yeem muab faib ua ntau hom xws li hydroxypropyl starch ether thiab hydroxyethyl starch ether. Ntau hom hmoov txhuv nplej siab ethers muaj cov khoom sib txawv thiab kev siv.
2. Lub luag haujlwm ntawm cov hmoov txhuv nplej siab ether hauv cov khoom siv hauv tsev
Thickening nyhuv:
Thaum cov hmoov txhuv nplej siab ether yaj hauv dej, nws tuaj yeem ua kom cov viscosity ntawm cov kua dej aqueous, uas ua rau nws siv dav hauv cov khoom siv hauv tsev. Nws cov khoom siv tseem ceeb suav nrog cov hmoov putty, coatings thiab mortars. Los ntawm kev ntxiv cov hmoov txhuv nplej siab ether, cov khoom siv hauv tsev tuaj yeem ua kom muaj thixotropy zoo dua thiab kev tsim kho, thiab zam dhau qhov dej ntws los yog kev sib haum xeeb ntawm cov ntaub ntawv thaum siv.
Cov nyhuv dej ruaj khov:
Cov hmoov txhuv nplej siab ether muaj cov khoom tuav dej zoo heev thiab tuaj yeem khaws cov dej noo hauv cov khoom siv hauv tsev. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog rau cov khoom siv cement, vim tias cov tshuaj tiv thaiv hydration ntawm cov cement yuav tsum muaj qee qhov kev txhawb nqa dej noo. Los ntawm kev ntxiv cov hmoov txhuv nplej siab ether, tus nqi evaporation ntawm cov dej tuaj yeem ua rau qeeb thiab cov cement tuaj yeem ua kom muaj dej txaus, yog li txhim kho lub zog thiab ruaj khov ntawm cov khoom siv hauv tsev.
Lubrication:
Starch ether kuj muaj cov nyhuv lubrication zoo hauv cov khoom siv hauv tsev thiab tuaj yeem txhim kho kev tsim kho ntawm cov ntaub ntawv. Tshwj xeeb tshaj yog thaum lub sij hawm tsim kho, hmoov txhuv nplej siab ether tuaj yeem txo qhov kev sib txhuam ntawm cov ntaub ntawv thiab cov cuab yeej siv, ua kom kev tsim kho smoother thiab txhim kho kev tsim kho.
Bonding muaj nuj nqi:
Raws li lub siab molecular polymer, hmoov txhuv nplej siab ether kuj muaj qee yam kev sib raug zoo thiab tuaj yeem txhim kho lub zog sib txuas ntawm cov khoom siv hauv tsev. Tom qab ntxiv cov hmoov txhuv nplej siab ether, lub zog sib txuas sab hauv thiab sab nraud ntawm cov khoom yuav raug txhim kho, yog li txhim kho tag nrho cov khoom siv hauv tsev.
3. Kev siv cov hmoov txhuv nplej siab ether hauv cov khoom siv hauv tsev
Putty hmoov:
Ntxiv cov hmoov txhuv nplej siab ether rau cov hmoov putty tuaj yeem txhim kho nws txoj kev tsim kho thiab ua kom du nto. Lub thickening thiab dej-retaining teebmeem ntawm starch ether ua rau cov hmoov putty tsis tshua muaj sag los yog tawg thaum lub sij hawm tsim kho, xyuas kom meej kev tsim kho.
Pobzeb nplaum:
Pobzeb nplaum yuav tsum muaj adhesion zoo thiab kev tsim kho. Qhov sib ntxiv ntawm cov hmoov txhuv nplej siab tuaj yeem txhim kho cov viscosity thiab dej tuav ntawm cov pobzeb nplaum, ua kom nws smoother thaum lub sij hawm tsim kho thiab muaj peev xwm ruaj khov rau cov vuas.
Dry mix mortar:
Ntxiv cov hmoov txhuv nplej siab ether rau cov khoom sib xyaw qhuav tuaj yeem txhim kho cov sag tsis kam thiab dej tuav ntawm lub mortar, thiab txhim kho nws cov kev sib raug zoo thiab ua haujlwm ntev. Qhov no yog ib qho tseem ceeb tshwj xeeb rau kev siv xws li sab nrauv phab ntsa rwb thaiv tsev thiab hauv pem teb cua sov systems.
txheej:
Kev siv cov hmoov txhuv nplej siab ether hauv cov txheej txheej yog feem ntau yog cov thickener thiab cov dej tuav cov neeg sawv cev los txhim kho cov txheej txheem rheology thiab kev ua haujlwm ntawm cov txheej txheej thiab ua rau cov txheej txheem ntau dua thiab zoo nkauj. Nyob rau tib lub sijhawm, cov hmoov txhuv nplej siab ether tuaj yeem txhim kho cov kev ua haujlwm tiv thaiv kev ua haujlwm ntawm cov txheej txheem thiab tiv thaiv cov txheej txheem ntawm sagging thaum lub sijhawm tsim kho.
4. Qhov zoo ntawm cov hmoov txhuv nplej siab ether
Kev tiv thaiv ib puag ncig:
Cov hmoov txhuv nplej siab ethers yog muab los ntawm cov hmoov txhuv nplej siab ntuj, yog rov ua dua tshiab, biodegradable, thiab environmentally friendly. Qhov no muab cov hmoov txhuv nplej siab ether hauv cov khoom siv hauv tsev kom pom tseeb ib puag ncig zoo thiab ua tau raws li cov kev cai ntawm cov vaj tsev ntsuab.
kev nyab xeeb:
Starch ether tsis muaj tshuaj lom thiab tsis muaj mob thiab yuav tsis muaj kev cuam tshuam rau tib neeg kev noj qab haus huv. Nws daim ntawv thov txheej txheem muaj kev nyab xeeb thiab txhim khu kev qha, thiab nws tsim nyog rau ntau qhov chaw tsim kho.
Nqi-effectiveness:
Piv nrog rau lwm cov tshuaj hloov pauv, cov hmoov txhuv nplej siab ether muaj ntau yam khoom siv raw thiab nws cov nqi kuj tsawg. Nws daim ntawv thov tuaj yeem tsis tsuas yog txhim kho kev ua haujlwm ntawm cov khoom siv hauv tsev, tab sis kuj txo cov nqi tag nrho thiab txhim kho cov txiaj ntsig kev lag luam.
5. Txoj kev loj hlob yav tom ntej
Raws li cov ntsiab lus ntawm lub tsev ntsuab thiab kev txhim kho kom ruaj khov txuas ntxiv mus, cov hmoov txhuv nplej siab ethers muaj kev cia siab dav rau kev siv hauv cov khoom siv hauv tsev. Nyob rau yav tom ntej, nrog rau kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis, kev ua haujlwm thiab kev siv cov hmoov txhuv nplej siab ether yuav nthuav dav ntxiv. Piv txwv li, los ntawm kev ua kom zoo dua cov qauv molecular ntawm cov hmoov txhuv nplej siab ethers, kev hloov kho kom zoo tuaj yeem tsim kom tau raws li qhov xav tau ntawm cov khoom siv sib txawv. Tsis tas li ntawd, kev siv cov hmoov txhuv nplej siab ethers hauv cov khoom siv hauv tsev ntse thiab cov khoom siv hauv tsev kuj tseem yuav dhau los ua qhov kev tshawb fawb hotspot, coj ntau yam tshiab thiab kev loj hlob rau kev tsim kho kev lag luam.
Raws li ib qho tseem ceeb hauv tsev hloov khoom siv, hmoov txhuv nplej siab ether plays lub luag haujlwm tseem ceeb hauv cov khoom siv hauv tsev vim nws cov thickening zoo heev, dej tuav, lubrication thiab kev sib txuas cov khoom. Nrog rau kev nce qib ntawm kev siv thev naus laus zis tas li, kev siv cov hmoov txhuv nplej siab ether yuav nthuav dav, pab kev tsim kho kev lag luam ua tiav kev txhim kho kom ruaj khov.
Post lub sij hawm: Lub Xya hli ntuj-17-2024