(1) Txheej txheem cej luam ntawm instant hydroxypropyl methylcellulose
Instant hydroxypropyl methylcellulose (HPMC) yog ib qho uas tsis yog-ionic cellulose ether tau los ntawm kev hloov kho tshuaj ntawm ntuj cellulose thiab muaj cov yam ntxwv zoo solubility thiab viscosity. Nws cov qauv molecular muaj hydroxyl, methoxy thiab hydroxypropoxy pawg. Cov pab pawg ua haujlwm no muab nws lub cev thiab tshuaj lom neeg tshwj xeeb, ua rau nws tseem ceeb hauv ntau yam kev siv.
(2) Kev ua haujlwm ntawm HPMC hauv kev tsim cov nplaum
Nyob rau hauv kev tsim kho, HPMC yog ib qho tseem ceeb additive thiab yog dav siv nyob rau hauv ntau yam kev siv adhesives, xws li pobzeb adhesives, phab ntsa putties, qhuav mortar, thiab lwm yam.
1. Thickening nyhuv
HPMC tuaj yeem ua kom cov viscosity thiab sib xws ntawm cov nplaum tsim. Nws cov nyhuv thickening los ntawm nws cov khoom o nyob rau hauv dej thiab lub intermolecular hydrogen bond network qauv tsim. Tsim nyog viscosity tuaj yeem txhim kho kev ua haujlwm ntawm cov ntaub ntawv thaum tsim kho thiab tiv thaiv cov nplaum los ntawm sagging thaum siv rau ntawm qhov chaw ntsug, yog li ua kom muaj kev tsim kho zoo.
2. Dej tuav nyhuv
HPMC muaj cov khoom tuav dej zoo, uas tuaj yeem txo cov dej poob thaum tsim kho. Kev tuav dej yog ib qho tseem ceeb ntawm kev tsim cov nplaum nplaum. Tshwj xeeb tshaj yog nyob rau hauv cov cement-based thiab gypsum-based cov ntaub ntawv, cov dej tuav cov nyhuv ntawm HPMC tuaj yeem txuas ntxiv lub sijhawm qhib ntawm cov nplaum, muab kev hloov kho ntev dua thiab siv sijhawm ntev, tiv thaiv kev tawg thaum ntxov thiab txo lub zog.
3. Txhim kho kev ua haujlwm
HPMC tuaj yeem txhim kho kev ua haujlwm ntawm kev tsim kho cov nplaum nplaum, nrog rau cov dej ntws, kev tsim kho thiab kev ua kom zoo. Nws cov nyhuv lubricating ua rau cov nplaum yooj yim rau kev thov thiab khawb thaum lub sij hawm tsim kho, txhim kho kev tsim kho kom zoo thiab lub tiaj tus ntawm kev tsim kho nto, thiab ua kom cov kev tsim kho zaum kawg.
4. Txhim kho kev sib raug zoo
HPMC tuaj yeem txhim kho qhov adhesion ntawm cov nplaum thiab cov substrate thiab txhim kho lub zog sib txuas ntawm cov nplaum los ntawm kev tsim cov txheej txheem zoo thiab zoo. Qhov no yog qhov tseem ceeb rau kev ruaj ntseg ntawm lub tsev cov qauv xws li cov phab ntsa thiab cov plag tsev, thiab tuaj yeem tiv thaiv cov vuas, tig rau cov vuas, thiab lwm yam los ntawm kev poob.
5. Kev ua haujlwm tsis zoo
Hauv cov ntawv thov xws li cov nplais nplaum, HPMC tuaj yeem txhim kho cov khoom muaj peev xwm tiv thaiv plam. Qhov no yuav pab kom cov vuas tsau rau ntawm qhov chaw tsim kho ntsug, txo qhov zaus ntawm kev hloov kho thiab kev ua haujlwm, thiab yog li txhim kho kev tsim kho kom zoo.
(3) Cov ntawv thov tshwj xeeb ntawm HPMC hauv cov nplaum sib txawv
1. Cov nplaum nplaum
Hauv cov pobzeb nplaum, HPMC tsis tsuas yog ua lub luag haujlwm hauv kev ua kom tuab thiab khaws dej, tab sis kuj txhim kho cov kev ua haujlwm ntawm cov pobzeb nplaum, ua kom ruaj khov ntawm cov vuas thaum tsim kho. Nws cov khoom tshwj xeeb rheological ua rau cov nplaum nplaum kom muaj cov viscosity haum raws li kev tsim kho sib txawv, ua kom yooj yim kho thiab tsim kho.
2. Phab ntsa putty
HPMC feem ntau ua lub luag haujlwm hauv kev khaws dej thiab ua kom tuab hauv phab ntsa putty, ua kom cov putty ua haujlwm tau zoo dua thiab muaj qhov du tom qab ziab. Nws cov dej tuav tuaj yeem txo qhov tawg thiab shrinkage ntawm putty txheej thaum lub sij hawm tsim kho, thiab txhim kho qhov zoo ntawm txheej txheej kawg.
3. Qhuav mortar
Hauv cov tshuaj khib nyiab qhuav, lub luag haujlwm tseem ceeb ntawm HPMC yog khaws cov dej noo thiab tiv thaiv kev poob dej thaum ntxov, yog li txhim kho kev ua haujlwm thiab adhesion ntawm mortar. Nws kuj tseem tuaj yeem kho qhov sib xws ntawm mortar kom nws haum rau cov xwm txheej sib txawv, xws li masonry mortar, plastering mortar, thiab lwm yam.
4. Lub tsev sealant
HPMC feem ntau yog siv rau hauv lub tsev sealants los txhim kho lub fluidity thiab workability ntawm colloid, thiaj li hais tias nws muaj peev xwm sib npaug ntawm cov pob qij txha thaum thov thiab tuav zoo elasticity thiab adhesion. Nws cov dej tuav kuj tuaj yeem tiv thaiv cov sealant los ntawm kev poob dej sai heev thiab txhim kho kev tsim kho kom zoo.
(4) Qhov zoo ntawm HPMC hauv kev tsim cov nplaum
Kev tiv thaiv ib puag ncig: HPMC yog muab los ntawm cov cellulose ntuj, muaj cov tshuaj lom neeg ruaj khov, tsis tso cov khoom tsis zoo thaum siv, thiab ua phooj ywg rau ib puag ncig thiab tib neeg lub cev.
Kev ruaj ntseg: HPMC muaj kev ruaj ntseg tshuaj zoo thiab tsis yooj yim cuam tshuam los ntawm ib puag ncig yam xws li kub thiab pH, thiab tuaj yeem tswj nws qhov kev ua tau zoo rau lub sijhawm ntev.
Compatibility: HPMC yog sib xws nrog ntau yam khoom siv hauv tsev thiab tuaj yeem ua ke zoo nrog cov ntaub ntawv xws li cement, gypsum, thiab mortar kom nws cov thickening thiab dej tuav dej.
(5) Kev txhim kho yav tom ntej
Nrog rau kev txhim kho ntawm kev tsim kho tshuab, daim ntawv thov kev cia siab ntawm HPMC hauv kev tsim cov nplaum yog dav. Tej zaum cov lus qhia kev txhim kho yav tom ntej muaj xws li:
Kev Txhim Kho Kev Ua Haujlwm: Txhim kho qhov ntau yam ntawm HPMC los ntawm kev hloov kho tshuaj lom neeg lossis kev sib xyaw nrog lwm cov tshuaj ntxiv kom tau raws li qhov xav tau ntawm kev tsim kho sib txawv.
Environmentally friendly products: Tsim kom muaj ib puag ncig tus phooj ywg thiab degradable HPMC cov khoom kom txo tau qhov cuam tshuam rau ib puag ncig.
Cov ntaub ntawv ntse: Tshawb nrhiav kev siv HPMC hauv cov khoom siv hauv tsev ntse, xws li cov nplaum kho tus kheej, cov khoom siv kub, thiab lwm yam, txhawm rau txhim kho qib kev txawj ntse ntawm cov khoom siv hauv tsev.
Instant hydroxypropyl methylcellulose, ua ib qho tseem ceeb ntxiv rau lub tsev adhesives, plays lub luag haujlwm tseem ceeb hauv kev txhim kho cov viscosity, dej tuav, thiab kev tsim cov khoom ntawm cov nplaum. Nws daim ntawv thov nyob rau hauv pobzeb nplaum, phab ntsa putty, qhuav mortar thiab lwm yam teb tau ho txhim kho kev tsim kho zoo thiab efficiency. Nyob rau hauv lub neej yav tom ntej, los ntawm kev nruam technology innovation thiab kev txhim kho ntawm ib puag ncig kev paub, daim ntawv thov ntawm HPMC nyob rau hauv lub tsev adhesives yuav coj mus rau hauv ib tug dav txoj kev loj hlob qhov chaw.
Post lub sij hawm: Jun-14-2024