Hydroxypropyl hmoov txhuv ether (HPS) yog ib qho tshuaj siv ntau hauv cov ntaub ntawv tsim kho thiab ua lub luag haujlwm tseem ceeb hauv cov mortars. Nws yog ib qho hmoov txhuv hloov kho uas txhim kho qhov solubility, viscosity thiab rheological ntawm cov hmoov txhuv los ntawm kev qhia cov pab pawg hydroxypropyl rau hauv cov saw hlau hmoov txhuv. Cov yam ntxwv no ua rau kev siv hydroxypropyl hmoov txhuv ether hauv mortar ntau qhov zoo.
1. Txhim kho kev khaws dej
Ib qho ntawm cov haujlwm tseem ceeb tshaj plaws ntawm hydroxypropyl hmoov txhuv nplej siab ether yog los txhim kho qhov khaws dej ntawm cov mortar. Ntxiv HPS rau cov mortar tuaj yeem txhim kho qhov muaj peev xwm khaws dej ntawm cov mortar. Cov cuab yeej no muaj cov txiaj ntsig tseem ceeb rau kev tsim kho thiab kev ua haujlwm ntawm cov khoom siv. Kev khaws dej ntau ntxiv pab:
Ntev lub sijhawm ua haujlwm (lub sijhawm qhib) ntawm cov tshuaj khib: Thaum lub sijhawm tsim kho, cov dej ua pa ntawm cov tshuaj khib sai dhau yuav ua rau cov tshuaj khib poob dej ntxov, yog li txo nws lub sijhawm ua haujlwm. HPS tswj cov dej noo kom zoo, xyuas kom cov neeg thov muaj sijhawm txaus los thov thiab kho.
Txo qhov tawg qhuav: Yog tias cov mortar poob dej sai dhau thaum lub sijhawm ua kom tawv, qhov tawg qhuav yuav yooj yim tshwm sim, cuam tshuam rau qhov zoo ntawm qhov chaw thiab lub zog ntawm cov qauv. Lub peev xwm khaws dej ntawm HPS tuaj yeem tiv thaiv qhov no kom tsis txhob tshwm sim.
2. Txhim kho kev ua haujlwm ntawm kev tsim kho
Hydroxypropyl hmoov txhuv nplej siab ether kuj tseem tuaj yeem txhim kho kev ua tau zoo ntawm cov mortar. Qhov no suav nrog cov yam ntxwv xws li cov khoom rheological, lubricity thiab viscosity tswj ntawm cov mortar. Qhov kev ua tau zoo tshwj xeeb yog:
Txhim kho qhov fluidity thiab sag tsis kam: HPS tuaj yeem ua rau kom cov mortar fluidity ntau ntxiv, ua rau nws yooj yim dua rau kev nthuav dav thaum lub sijhawm tsim kho. Tib lub sijhawm, vim nws tuaj yeem txhim kho qhov viscosity ntawm mortar, nws tuaj yeem tiv thaiv cov mortar kom tsis txhob sagging ntawm cov chaw ntsug thiab tswj tau qhov kis tau zoo thiab qhov chaw ntsug ruaj khov.
Txhim kho lubricity: Thaum lub sijhawm tsim kho, lubricity ntawm mortar pab txo qhov kev sib txhuam thaum lub sijhawm ua haujlwm tsim kho thiab ua rau daim ntawv thov du dua, yog li txo qhov nyuaj ntawm kev tsim kho thiab txhim kho kev ua haujlwm zoo.
Tswj viscosity: HPS tuaj yeem tswj tau qhov viscosity ntawm mortar, yog li nws muaj fluidity zoo thiab tuaj yeem khov sai tom qab kev tsim kho kom tsim tau cov qauv ruaj khov.
3. Txhim kho lub zog sib txuas
Kev txhim kho lub zog sib txuas ntawm cov mortar yog lwm yam tseem ceeb ntawm HPS. Los ntawm kev txhim kho cov khoom sib txuas ntawm cov mortar thiab substrate, HPS tuaj yeem:
Kev txhim kho lub zog sib txuas: Kev txhim kho kev sib txuas ntawm cov mortar thiab cov substrate tuaj yeem txhim kho lub zog thiab kev ruaj khov ntawm tag nrho lub cev. Tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej uas xav tau kev sib txuas siab, HPS tuaj yeem txhim kho qhov cuam tshuam ntawm cov mortar.
Txhim kho kev nplaum: Thaum siv cov tshuaj khib, HPS tuaj yeem pab cov tshuaj khib lo rau ntawm qhov chaw ntawm cov khoom siv hauv paus, txo qhov delamination thiab shedding ntawm cov tshuaj khib, thiab xyuas kom meej qhov zoo ntawm qhov project.
4. Txhim kho kev tiv thaiv khov-thaw
Hydroxypropyl hmoov txhuv nplej siab ether kuj muaj qhov zoo tseem ceeb hauv kev tiv thaiv huab cua ntawm cov mortar. Nws tuaj yeem txhim kho qhov tsis kam ntawm cov mortar khov thiab yaj, tshwj xeeb tshaj yog raws li hauv qab no:
Txo kev puas tsuaj los ntawm lub voj voog khov-thaw: Cov dej noo hauv cov mortar yuav nthuav dav thiab cog lus ntau zaus thaum lub voj voog khov-thaw, ua rau puas tsuaj rau cov qauv ntawm cov mortar. Kev khaws dej thiab lubricity ntawm HPS tuaj yeem txo qhov kev puas tsuaj ntawm dej rau cov qauv mortar thaum lub sijhawm khov thiab txhim kho qhov kev tiv thaiv khov-thaw ntawm cov mortar.
Txhim kho kev ruaj khov: Los ntawm kev txo qhov kev puas tsuaj ntawm kev khov-thaw, HPS pab txhim kho kev ruaj khov mus sij hawm ntev ntawm cov mortar, uas ua rau nws tswj tau qhov kev ua tau zoo hauv ntau qhov chaw nyuaj.
5. Muab kev ua haujlwm zoo rau kev tsim kho
Kev siv HPS hauv cov mortar kuj coj kev ua haujlwm zoo dua. Qhov no feem ntau pom hauv:
Yooj yim rau do thiab sib tov: Qhov ntxiv ntawm HPS ua rau cov mortar sib xws ntau dua thaum lub sijhawm sib tov, txo qhov sib sau ua ke ntawm cov npuas thiab cov khoom me me hauv cov mortar, yog li txhim kho qhov sib xws ntawm kev sib tov.
Txo qhov los ntshav: Qhov los ntshav hauv cov pob zeb yuav ua rau muaj ib daim dej tshwm sim rau ntawm qhov chaw ntawm cov pob zeb, yog li cuam tshuam rau qhov zoo ntawm kev tsim kho. HPS tuaj yeem tiv thaiv qhov los ntshav thiab tswj tau qhov sib xws thiab ruaj khov ntawm cov pob zeb.
6. Kev tiv thaiv ib puag ncig thiab kev nyab xeeb
Ua ib qho khoom siv ntxiv rau ib puag ncig, hydroxypropyl hmoov txhuv nplej siab ether yog nrov heev hauv cov ntaub ntawv siv niaj hnub no. Nws cov khoom muaj kev nyab xeeb thiab tsis muaj tshuaj lom ua rau nws siv dav hauv ntau yam kev siv hauv kev tsim kho, ua raws li qhov xav tau siab tam sim no rau kev tiv thaiv ib puag ncig thiab kev nyab xeeb hauv kev lag luam tsim kho.
Lub luag haujlwm ntawm hydroxypropyl hmoov txhuv nplej siab ether hauv mortar tsis yog tsuas yog txhim kho qhov kev khaws cia dej, kev ua haujlwm ntawm kev tsim kho thiab lub zog sib txuas ntawm cov mortar, tab sis kuj txhim kho qhov khov-thaw tsis kam ntawm cov mortar, muab kev ua haujlwm zoo ntawm kev tsim kho, thiab ua raws li kev tiv thaiv ib puag ncig thiab cov qauv kev nyab xeeb. . Cov yam ntxwv no ua rau HPS yog qhov tseem ceeb thiab tseem ceeb ntxiv rau cov ntaub ntawv tsim kho niaj hnub, muab kev txhawb nqa zoo rau kev txhim kho kev tsim kho thiab cov khoom siv zoo.
Lub sijhawm tshaj tawm: Lub Xya Hli-03-2024