Hydroxypropyl methylcellulose (HPMC) yog ib qho cellulose ether uas tau siv dav hauv ntau yam khoom siv hauv tsev. Lub versatility ntawm HPMC nyob rau hauv nws lub peev xwm los sib txawv zog xws li viscosity, dej tuav thiab dispersion, adhesion, bonding zog thiab film-forming muaj peev xwm.
1. Cement mortar
Hauv kev tsim kho kev lag luam, HPMC tau siv dav hauv cov cement mortars rau ntau lub hom phiaj xws li txo cov dej haus, ncua sij hawm teem sijhawm thiab txhim kho cov khoom sib xws. Ntxiv HPMC rau cov cement mortar txhim kho nws lub zog sib txuas thiab tuaj yeem siv tau yooj yim rau cov chaw sib txawv yam tsis muaj kev tawg.
2. Cov nplaum nplaum
HPMC yog cov khoom tseem ceeb hauv cov nplaum nplaum. Nws txhim kho cov khoom sib txuas ntawm cov pobzeb nplaum thiab txhim kho cov dej tuav, cia cov nplaum nplaum nplaum thaum cov vuas raug muab tso. HPMC kuj tseem txhim kho kev ua haujlwm ntawm cov nplais nplaum thiab muab lub sijhawm qhib zoo dua, uas yog qhov tseem ceeb hauv kev ua kom cov nplaum nplaum tseem siv tau rau lub sijhawm ntev.
3. Cov khoom siv gypsum
HPMC yog siv rau hauv gypsum plaster, caulks thiab lwm yam khoom siv gypsum. Qhov sib ntxiv ntawm HPMC txhim kho cov dej tuav thiab kev tawg ntawm cov khoom siv gypsum, ua rau txo qis, txhim kho nto tiav, thiab txhim kho kev ua haujlwm. HPMC kuj pab txo qhov tawg thiab txhim kho cov khoom siv gypsum.
4. Sab nrauv rwb thaiv tsev thiab Finishing Systems (EIFS)
EIFS yog nrov nyob rau hauv Teb chaws Europe thiab North America ua ib qho kev txuag hluav taws xob rau cov tsev. HPMC yog ib qho tseem ceeb ntawm EIFS raws li nws txhim khu primer adhesion rau phab ntsa thiab muab ib tug du nto tiav. HPMC yog sib xws nrog cov nplaum sib txawv siv hauv EIFS, xws li acrylic, cement thiab yas.
5. Self-leveling compounds
HPMC feem ntau yog siv rau hauv tus kheej-leveling compounds los muab kev sib xws thiab txhim kho cov khoom ntws. Nws muaj peev xwm ua kom sib sib zog nqus sib npaug hauv dej tso cai rau kev sib xyaw zoo dua thiab tawg ntawm lwm cov khoom ntxiv xws li cov cement, xuab zeb thiab aggregates. HPMC tseem tuaj yeem ua kom muaj zog ntawm daim ntawv cog lus thiab txo cov viscosity ntawm tus kheej-leveling compounds, uas ua rau cov khoom tiav zoo ib yam. Self-leveling tebchaw yog siv rau theem tsis sib xws cov pob zeb hauv pem teb ua ntej cov khoom siv hauv pem teb raug teeb tsa. Ntxiv HPMC rau cov tebchaw no txhim kho lawv txoj haujlwm ua haujlwm, qib thiab muaj peev xwm tuav dej. HPMC tseem tuaj yeem txhim kho qhov pom ntawm cov khoom sib txuas no los ntawm kev txo cov npuas npuas thiab tawg
6. Cov ntaub ntawv rwb thaiv tsev
HPMC yog siv los ua cov nplaum rau hauv cov ntaub ntawv rwb thaiv tsev xws li fiberglass thiab pob zeb wool. Nws txhim kho adhesion, txhim kho dej tsis kam, thiab ua kom lub zog tensile thiab flexural zog ntawm rwb thaiv tsev. HPMC tseem xyuas kom meej tias cov khoom khaws nws cov duab thiab muab cov khoom sib txuas zoo rau cov substrates sib txawv.
HPMC yog cov khoom muaj nyob hauv ntau yam khoom siv hauv tsev. Nws muaj peev xwm hloov kho cov khoom sib txawv xws li viscosity, dej tuav thiab dispersion, adhesion, kev sib txuas lub zog thiab kev ua yeeb yaj kiab ua rau nws muaj txiaj ntsig ntxiv rau cov khoom siv sib txawv. HPMC yuav txuas ntxiv ua lub luag haujlwm tseem ceeb hauv kev tsim kho kev lag luam hauv xyoo tom ntej vim nws qhov kev cuam tshuam zoo rau kev ua haujlwm, ua haujlwm ntev thiab ua haujlwm ntawm cov khoom siv hauv tsev.
Kev siv HPMC hauv cov khoom siv hauv tsev:
1. Mortar thiab plaster:
Cov mortars thiab plasters yog cov cement-raws li cov khoom sib xyaw siv rau kev sib txuas, kho thiab npog phab ntsa thiab qab nthab. Ntxiv HPMC rau cov khoom sib tov no txhim kho lawv cov kev ua haujlwm, kev nplaum, thiab kev tuav dej. HPMC tseem tuaj yeem txhim kho qhov ua haujlwm ntev ntawm cov ntaub ntawv no los ntawm kev txo qhov tawg ntawm qhov chaw thiab shrinkage.
2. Cement-based waterproof txheej:
Cement waterproofing coatings yog siv los tiv thaiv cov vaj tse ntawm cov dej puas. Qhov sib ntxiv ntawm HPMC rau cov txheej txheem no txhim kho lawv cov kav ntev, dej tsis kam thiab tawg tsis kam. HPMC kuj tseem txhim kho cov txheej txheem ntawm cov txheej txheem no los ntawm kev txhim kho lawv cov dej ntws thiab adhesion.
Cov khoom muaj txiaj ntsig ntawm HPMC hauv cov khoom siv hauv tsev:
1. Kev tuav dej:
HPMC muaj cov khoom tuav dej zoo heev thiab txhim kho cov dej tuav cov khoom siv hauv tsev. Cov cuab yeej no muaj txiaj ntsig tshwj xeeb hauv cov cement-raws li kev sib xyaw uas cov dej tuav yog qhov tseem ceeb rau kev kho kom zoo thiab kev sib txuas.
2. Kev ua tau zoo:
HPMC txhim kho cov txheej txheem ntawm cov khoom siv hauv tsev los ntawm kev txo cov viscosity thiab nce flowability. Cov cuab yeej no muaj txiaj ntsig zoo hauv kev siv xws li mortars, plasters thiab tus kheej-leveling tebchaw, qhov twg cov khoom sib xws yog qhov tseem ceeb rau kev thov kom raug.
3. Adhesion:
HPMC txhim kho cov khoom sib txuas ntawm cov khoom siv hauv tsev los ntawm kev ua kom thaj chaw sib txuas ntawm cov khoom siv hauv tsev thiab cov substrate. Cov cuab yeej no muaj txiaj ntsig zoo hauv cov ntawv thov xws li cov nplais nplaum uas qhov adhesion tsim nyog yog qhov tseem ceeb rau kev tuav lub neej ntev thiab ruaj khov ntawm kev teeb tsa.
4. Durability:
HPMC ua kom cov khoom siv hauv tsev ua kom muaj zog los ntawm kev ua kom lawv tiv taus kev tawg, shrinkage thiab dej puas. Cov cuab yeej no muaj txiaj ntsig zoo hauv cov ntawv thov xws li cementitious waterproof coatings, qhov kev tiv thaiv rau cov dej puas yog qhov tseem ceeb rau kev ncaj ncees.
Hydroxypropylmethylcellulose (HPMC) yog ib qho khoom siv polymer nrog ntau yam kev siv hauv kev tsim kho kev lag luam. Nws yog dav siv los ua cov khoom siv ua haujlwm los txhim kho kev ua haujlwm ntawm cov khoom siv hauv tsev. Nws cov khoom muaj txiaj ntsig zoo xws li dej tuav, ua haujlwm tau zoo, adhesion thiab durability ua rau nws zoo tagnrho rau kev siv cov khoom siv xws li mortars thiab plasters, pobzeb adhesives, cementitious waterproof coatings thiab self-leveling compounds. Qhov kev thov loj zuj zus rau cov khoom siv hauv tsev thiab kev ruaj ntseg tau ua rau HPMC yog ib qho tseem ceeb hauv kev tsim cov khoom siv hauv tsev thiab kev ua tiav ntawm kev tsim kho kev lag luam.
Post lub sij hawm: Oct-25-2023