qhia:
Qhuav mix mortars yog nrov nyob rau hauv kev tsim kho kev lag luam vim lawv yooj yim ntawm kev siv, txhim kho zoo thiab lub sij hawm efficiency.Ntau yam additives ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua haujlwm ntawm cov tshuaj khib nyiab qhuav, thiab ib qho ntawm cov khoom siv paub zoo yog hydroxypropyl methylcellulose (HPMC).Qhov no ntau yam polymer yog dav siv nyob rau hauv qhuav mix mortars los pab txhim kho workability, adhesion thiab tag nrho cov mortar kev ua tau zoo.
Cov qauv tshuaj thiab cov khoom ntawm HPMC:
Hydroxypropylmethylcellulose yog ib tug derivative ntawm cellulose, ib tug natural polymer pom nyob rau hauv cov nroj tsuag cell phab ntsa.Cov qauv tshuaj ntawm HPMC yog tus cwj pwm los ntawm kev muaj hydroxypropyl thiab methyl pawg ntawm cov pob txha cellulose.Cov qauv tshwj xeeb no muab HPMC cov khoom tshwj xeeb, ua rau nws haum rau ntau yam kev siv hauv kev tsim kho kev lag luam.
Cov yam ntxwv tseem ceeb ntawm HPMC suav nrog:
Kev tuav dej:
HPMC muaj peev xwm tuav tau dej zoo heev, kom ntseeg tau tias cov mortar tseem siv tau ntev.Cov cuab yeej no yog qhov tseem ceeb los tiv thaiv cov mortar los ntawm kev ziab ntxov ntxov thiab tso cai rau kev siv zoo dua ntawm ntau qhov chaw.
Thickening peev xwm:
HPMC ua raws li cov thickener thiab pab txhim kho qhov sib xws thiab kev ua haujlwm ntawm cov mortar.Qhov no yog tshwj xeeb tshaj yog zoo nyob rau hauv ntsug daim ntaub ntawv uas lub mortar yuav tsum tau ua raws li qhov chaw tsis sagging.
Txhim kho adhesion:
Lub xub ntiag ntawm HPMC txhim kho qhov adhesion ntawm mortar rau ntau yam substrates, txhawb kev sib txuas zoo dua thiab ua haujlwm ntev ntawm cov qauv kawg.
Teem sijhawm tswj:
Los ntawm ua tib zoo kho hom thiab tus nqi ntawm HPMC nyob rau hauv daim ntawv qhia qhuav mix mortar, lub sij hawm teem ntawm lub mortar tuaj yeem tswj tau.Qhov no tso cai rau kev tsim kho tej yaam num kom hloov tau thiab hloov mus rau cov kev xav tau sib txawv thiab ib puag ncig.
Flexibility thiab tawg kuj:
HPMC muab kev yooj yim rau cov mortar, txo qhov kev pheej hmoo ntawm kev tawg thiab txhim kho tag nrho cov kav ntev.Qhov no yog qhov tseem ceeb tshwj xeeb hauv cov ntawv thov uas cov qauv raug cuam tshuam rau lub zog dynamic lossis kub hloov.
Daim ntawv thov ntawm HPMC nyob rau hauv qhuav mix mortar :
Pobzeb nplaum:
HPMC feem ntau siv rau hauv cov nplais nplaum los txhim kho adhesion, dej tuav thiab ua haujlwm.Cov polymer ua kom muaj kev sib raug zoo ntawm cov pobzeb thiab cov substrate, yog li ua kom lub neej ntev ntawm cov pobzeb nto.
Plastering mortar:
Nyob rau hauv plastering mortars, HPMC pab txhim kho kev ua hauj lwm thiab adhesion ntawm cov sib tov.Cov polymer pab ua kom tiav cov plaster nto du thiab zoo ib yam thaum txo qhov kev pheej hmoo ntawm cov kab nrib pleb.
Masonry mortar:
HPMC yog siv rau hauv masonry mortars los txhim kho dej tuav, ua hauj lwm thiab adhesion.Txhim kho cov khoom sib txuas ua rau cov qauv masonry muaj zog thiab ruaj khov dua.
Self-leveling compounds:
Cov dej tuav thiab thickening zog ntawm HPMC ua rau nws haum rau siv nyob rau hauv tus kheej-leveling compounds.Cov tebchaw no ua kom lub ntsej muag du thiab tuaj yeem siv rau ntau yam kev tsim kho.
Seam muab tub lim:
HPMC tau muab tso rau hauv caulk los txhim kho kev yooj yim thiab adhesion.Qhov no yog qhov tshwj xeeb tshaj yog rau cov pob qij txha uas tau txav mus los thiab thermal expansion.
Quality Control thiab Compatibility:
Ua kom ntseeg tau qhov zoo thiab kev sib raug zoo ntawm HPMC hauv cov tshuaj khib nyiab qhuav yog qhov tseem ceeb kom ua tiav qhov kev ua tau zoo.Kev tswj xyuas kev ua tau zoo suav nrog kev sim cov polymers rau qhov tsis xws li viscosity, noo noo cov ntsiab lus thiab particle loj faib.Kev tshawb fawb txog kev sib raug zoo yuav tsum tau ua los soj ntsuam kev sib cuam tshuam ntawm HPMC thiab lwm cov khoom xyaw hauv cov tshuaj mortar kom ntseeg tau tias muaj kev sib koom ua ke yam tsis muaj kev cuam tshuam tsis zoo.
Environmental xav txog:
HPMC raug suav hais tias yog ib puag ncig tus phooj ywg vim nws tau muab los ntawm cov peev txheej txuas ntxiv mus.Lub biodegradability ntawm HPMC ua kom ntseeg tau tias nws siv hauv kev tsim kho daim ntawv thov yuav tsis muaj kev cuam tshuam ntev rau ib puag ncig.
nyob rau hauv xaus:
Hydroxypropyl methylcellulose yog ib qho khoom siv ntau yam thiab muaj txiaj ntsig zoo nyob rau hauv cov khoom sib xyaw qhuav.Nws cov khoom sib xyaw tshwj xeeb, suav nrog kev tuav dej, muaj peev xwm thickening thiab txhim kho adhesion, ua rau nws yog ib qho tseem ceeb muaj nyob rau hauv ntau yam kev tsim kho.Raws li kev tsim kho kev lag luam txuas ntxiv mus ntxiv, lub luag haujlwm ntawm HPMC hauv kev txhim kho kev ua tau zoo thiab kev ruaj khov ntawm cov khoom sib xyaw qhuav yuav nce ntxiv, yog li ua rau muaj txiaj ntsig zoo dua thiab siv tau ntev.
Post lub sij hawm: Nov-30-2023