Lub teeb pob zeb Additives | High-Performance Foaming Agents rau Cellular Concrete
Koj puas tau ntsia ib technical cov ntaub ntawv rau RDP hmoov thiab muaj kev ntxhov siab ntau dua li thaum koj pib? Koj tsis nyob ib leeg. Cov lej rau iav hloov kub, yam tsawg kawg nkaus zaj duab xis-forming kub, thiab tensile adhesion lub zog tuaj yeem zoo li hom lus txawv teb chaws. Kev nyeem ntawv tsis raug ntawm no txhais tau hais tias ua tsis tiav batch ntawm pobzeb nplaum lossis tawg nws tus kheej-leveling underlayment. Qhov ntawd raug nqi nyiaj. Nws raug nqi sijhawm. Nws ua rau koj lub koob npe nrov.
Kuv tau siv ntau tshaj ob xyoo lawm hauv kev lag luam no. Kuv tau pom master formulators ntshai tshaj ib feem pua ntawm cov tshuaj. Kuv kuj tau pom cov neeg pib nyeem cov ntaub ntawv kom raug ntawm lawv thawj zaug sim thiab tsim ib lub mortar zoo meej. Phau ntawv qhia no yog rau koj. Peb yuav taug kev los ntawm txhua txoj kab tseem ceeb ntawm RDP hmoov manufacturers technical data sheet, kauj ruam los ntawm kauj ruam. Thaum kawg, koj yuav ua kom ntseeg siab, paub cov kev txiav txim siab rau koj cov qauv.
Dab tsi yog RDP Powder thiab Vim Li Cas Nws Cov Ntaub Ntawv Tseem Ceeb?
Redispersible polymer hmoov (RDP) yog cov khoom siv zais cia hauv niaj hnub qhuav-mix mortars. Nws yog thermoplastic polymer cob, kev lig kev cai vinyl acetate ethylene (KOOB). Cov chaw tsim tshuaj paus-dries nws mus rau hauv ib tug zoo hmoov. Thaum koj sib tov nws nrog dej hauv koj lub mortar, nws 're-disperses’ rov qab rau hauv latex. Qhov no latex zaj duab xis ntxiv dag zog rau koj mortar, txhim kho adhesion rau nyuaj substrates, thiab ua kom yooj.
Cov ntaub ntawv qhia txuj ci yog cov neeg tsim khoom cog lus txog cov hmoov tshwj xeeb yuav ua li cas. Tsis quav ntsej nws zoo li ya lub dav hlau tsis muaj cuab yeej. Cia peb kawm nyeem lawv.
1. Pib nrog Basics: Polymer hom thiab lub cev daim ntawv
Kauj ruam 1: Txheeb xyuas qhov polymer qaum. Saib rau tsev neeg tshuaj. Feem ntau RDPs yog VAE (Vinyl Acetate Ethylene). Qee tus siv Acrylics lossis Vinyl Versatate (Koj paub). Hom polymer dictates lub hauv paus zog. VAE muaj qhov sib npaug zoo ntawm adhesion thiab yooj rau kev tsim kho. Acrylics muab kev tiv thaiv UV zoo rau cov txheej txheem sab nrauv. Daim ntawv teev cov ntaub ntawv yuav ib txwm hais qhov no hauv 'Product Description’ ntu.
Kauj ruam 2: Tshawb xyuas lub cev. Nws yuav tsum hais tias 'dawb mus rau dawb dawb-ntws hmoov.’ Yog hais tias 'lom’ los yog 'nrog agglomerates,’ uas yog tus chij liab rau cov khoom tsis zoo los yog cov khoom puas. Cov qhov ntom ntom feem ntau yog nruab nrab ntawm 400 thiab 600 g/l. Tus lej no tseem ceeb heev rau kev tsim khoom thiab ntim khoom. Cov hmoov hmoov qis dua yuav siv ntau lub ntim hauv koj lub tov khoom.
| Khoom | Tus nqi | Vim Li Cas Nws Tseem Ceeb |
|---|---|---|
| Qhov tshwm sim | Dawb mus rau dawb hmoov | Visual quality check |
| Kev ceev ceev | 400 - 600 g/l | Kev cuam tshuam lub hnab ntim ntim thiab kev coj cwj pwm sib xyaw |
| Cov ntsiab lus | 98 - 99% | Siab txhais tau tias tsawg dua inert fillers; kev ua tau zoo dua ib gram |
2. Decipher Thermal Properties: Tg thiab MFFT
Cov no yog ob tus lej nkag siab tsis zoo tshaj plaws ntawm RDP hmoov chaw tsim khoom cov ntaub ntawv cov ntaub ntawv. Tau txais lawv txoj cai, thiab koj lub mortar coj zoo nkauj. Tau lawv yuam kev, thiab koj cov khoom ua tsis tiav hauv daim teb.
Nkag siab txog iav Hloov Kub Kub (Tg)
Kauj ruam 2.1: Nrhiav tus nqi Tg. Qhov no yog qhov kub ntawm lub polymer hloov ntawm ib qho nyuaj, glassy xeev mus rau ib tug mos mos, roj hmab xeev. Nws ntsuas hauv ° C. High Tg (e.g., +20°C) txhais tau tias tawv, tawv zaj duab xis ntawm chav tsev kub. A low Tg (e.g., -10°C) txhais tau tias hloov tau yooj yim heev, mos zaj duab xis.
Kauj ruam 2.2: Match Tg rau koj daim ntawv thov. Rau cov pobzeb nplaum rau ntawm lub sam thiaj uas pom lub caij ntuj no khov, koj xav tau cov hmoov Tg qis (ntawm -5 ° C rau -15 ° C). Rau tus kheej-leveling underlayment sab hauv tsev, ib tg (0° C rau + 10 ° C) feem ntau txaus. Daim ntawv teev cov ntaub ntawv 'Application’ ntu yuav coj koj, tab sis tam sim no koj paub vim li cas.
Mastering Yam tsawg kawg nkaus zaj duab xis-Forming Temperature (MFFT)
Kauj ruam 2.3: Nrhiav tus nqi MFFT. Tus lej no feem ntau ze rau Tg tab sis tuaj yeem siab dua me ntsis. MFFT yog qhov kub qis tshaj plaws uas cov khoom siv polymer yuav coalesce rau hauv cov yeeb yaj kiab tas mus li. Yog tias koj qhov chaw ua haujlwm kub qis dua MFFT, cov polymer yuav tsis tsim ib zaj duab xis. Koj mortar yuav chalky thiab tsis muaj zog.
Kauj ruam 2.4: Ua qhov kev sib txuas ua ke. Yog tias koj cov ntaub ntawv hais tias MFFT = 5 ° C, koj yuav tsum tsis txhob siv cov mortar thaum lub substrate lossis huab cua kub qis dua 5 ° C. Tag nrho nres. Qhov no tsis yog kev sib tham rau kev ua haujlwm. Ntau qhov ua tsis tiav los ntawm kev tsis quav ntsej tus lej no.
3. Performance Parameters: Yam Dabtsi Tiag Tiag
Tam sim no peb nkag mus rau hauv tus cwj pwm tiag tiag. Txhua RDP hmoov cov chaw tsim khoom cov ntaub ntawv qhia txog cov khoom siv kho tshuab. Ntawm no yog yuav ua li cas nyeem lawv yam tsis tau twv.
Tensile Adhesion Lub zog (Nyob rau hauv cov ntsiab lus ntawm Mortar)
Kauj ruam 3.1: Nrhiav tus txheej txheem xeem. Nws yuav yog ib qho 'tshiab’ xeem, ib 'aged’ xeem (kub laus), los yog 'dej’ xeem (dej immersion). Tus nqi tseem ceeb tshaj plaws rau cov nplais nplaum yog qhov adhesion tom qab immersion dej. Ib lub hom phiaj zoo RDP yuav qhia cov txiaj ntsig adhesion ntawm 0.5 rau 1.0 N / mm² tom qab 7 hnub qhuav thiab 14 niaj hnub immersion.
Kauj ruam 3.2: Sib piv cov nqi thoob plaws manufacturers. Chaw tsim tshuaj paus A thov 0.8 N / mm². Chaw tsim tshuaj paus B thov 0.6 N / mm². Tab sis xyuas cov kev xeem. Puas yog lawv siv tib lub tshuaj khib nyiab? Tib hom cement? Cov ntaub ntawv yuav tsum siv tus qauv zoo li EN 12004 los yog ISO 13007. Yog tsis yog, nug vim li cas.
Flexural Strength thiab Abrasion Resistance
Rau self-leveling underlayments, flexural zog yog huab tais. Nrhiav qhov tseem ceeb saum toj no 2.0 N / mm² rau cov chaw lag luam loj. Rau industrial floors, abrasion kuj tseem ceeb heev. Cov ntaub ntawv tuaj yeem tshaj tawm nws li 'poob hauv grams’ tom qab lub voj voog sim. Tsawg loj poob sib npaug zoo dua durability.
4. Kev noj tshuaj: Qhov Zoo Tshaj Plaws ntawm Kev Ua Haujlwm thiab Tus Nqi
Txhua daim ntawv teev cov ntaub ntawv muab ib qho 'Recommended Dosage’ ntau. Qhov no yog qhov yuam kev tshaj plaws rau cov neeg tsim khoom tshiab. Koj xav tias 'ntau dua yog muaj zog.’ Qee zaum muaj tseeb. Feem ntau, yog nkim nyiaj xwb.
Kauj ruam 4.1: Pib hauv nruab nrab ntawm qhov ntau. Yog daim ntawv hais tias 2% rau 5% los ntawm qhov hnyav ntawm cement, pib ntawm 3.5%. Sib tov ib qho kev xeem batch.
Kauj ruam 4.3: Txo cov koob tshuaj kom siab tshaj plaws. Cov ntsiab lus polymer siab dua tuaj yeem ua rau qis zog compressive. Rau ib txheej hnav, koj yuav nqes mus 2% ua kom lub ntsej muag hardness siab. Daim ntawv teev cov ntaub ntawv yuav qhia ib daim duab ntawm 'adhesion vs. koob tshuaj’ los yog 'flexural zog vs. koob tshuaj’ yog koj ua tib zoo saib. Siv daim duab ntawd.
| Daim ntawv thov | Hom RDP Dosage (% ntawm Cement) | Cov txiaj ntsig tseem ceeb |
|---|---|---|
| Ceramic Pobzeb Adhesive | 3 - 5% | Adhesion thiab yooj |
| Self-Leveling Underlayment | 2 - 4% | Flow thiab tawg kuj |
| EIFS Base Coat | 4 - 6% | Impact resistance thiab weatherproofing |
| Sab nrauv Plaster / Stucco | 1.5 - 3% | Water repellency thiab yooj |
5. Sib tov, Dispersion, thiab Re-Dispersibility
RDP hmoov cov chaw tsim khoom cov ntaub ntawv cov ntaub ntawv yuav tsum suav nrog cov txheej txheem sib xyaw. Ua raws nraim li lawv. Tsis txhob muab cov hmoov pov tseg rau hauv dej xwb.
Kauj ruam 5.1: Cov txheej txheem dispersion. Ib txwm ntxiv cov hmoov RDP rau hauv lwm cov khoom xyaw qhuav ua ntej. Sib tov kom huv si kom tsawg 30 vib nas this. Ces ntxiv cov dej. Qhov no tiv thaiv cov polymer los ntawm 'pob tuaj’ los yog 'ntsej muag.’
Kauj ruam 5.2: Txheeb xyuas qhov sib piv ntawm dej-rau-hmoov. Daim ntawv yuav muab ib tug ntau yam (e.g., 0.22:1 rau 0.26:1 los ntawm qhov hnyav). Pib qis. Ntxiv dej maj mam. RDP nce qhov xav tau thickener, yog li koj yuav xav tau dej ntau dua li hauv qhov tsis hloov pauv.
Kauj ruam 5.3: Qhov kev xeem rov dispersibility. Daim ntawv teev cov ntaub ntawv yuav qhia txog 'sib tsoo seem’ los yog 'screen residue’ tus nqi. Qhov no yog tus nqi ntawm cov khoom uas tsis rov disperse. RDP zoo muaj tsawg dua 1% residue ntawm 200-micron screen. High residue txhais tau tias tsis zoo zaj duab xis tsim thiab tsis muaj zog mortar.
6. Cia, Txee lub neej, thiab kev nyab xeeb
Kev tsis saib xyuas cov xwm txheej khaws cia yog txoj hauv kev ceev tshaj plaws los rhuav tshem lub nruas kim ntawm hmoov.
Kauj ruam 6.1: Kub txwv. Cov ntaub ntawv yuav hais tias 'Khoom hauv qhov txias, qhov chaw qhuav’ thiab feem ntau qhov kub siab tshaj plaws (e.g., 30° C los yog 40 ° C). Tsis txhob khaws cov hmoov RDP rau hauv tshav ntuj ncaj qha lossis ze ntawm lub qhov cub. Qhov kub thiab txias tuaj yeem ua rau lub sijhawm ua ntej ntawm lub hnab ntim khoom.
Kauj ruam 6.2: Moisture yog tus yeeb ncuab. Cov hmoov yog hygroscopic. Daim ntawv teev cov ntaub ntawv yuav ceeb toom txog kev khaws nws kaw. Ib lub hnab qhib sab laug hauv qhov chaw ntub dej yuav clump. Thaum nws clumps, nws dispersibility poob dramatically.
Kauj ruam 6.3: Txee lub neej. Feem ntau manufacturers guarantee 6 rau 12 lub hlis txij li hnub tsim khoom. Lub 'Manufacturing Date’ los yog 'Zoo Ua Ntej’ kab ntawm daim ntawv teev cov ntaub ntawv yog koj tus phooj ywg. Hloov koj cov Tshuag. qub RDP tseem tuaj yeem ua haujlwm, tab sis nws qhov kev ua tau zoo tuaj yeem txo qis.
Kauj ruam 6.4: Kev nyab xeeb ua ntej. Txhua RDP hmoov cov chaw tsim khoom cov ntaub ntawv cov ntaub ntawv yuav tsum siv cov ntaub ntawv Kev Nyab Xeeb Khoom Siv (MSDS). Fine polymer plua plav yog ua pa ua pa thiab tuaj yeem ua rau cov plua plav tawg. Ib txwm siv lub ntsej muag plua plav thiab xyuas kom muaj cua. Cov ntaub ntawv yuav hais txog PPE tsim nyog (Cov cuab yeej tiv thaiv tus kheej).
7. Kev sib haum xeeb: Ua Nws Ua Haujlwm Nrog Koj Lwm Cov Khoom Siv
RDP tsis ua haujlwm ib leeg. Nws cuam tshuam nrog cov cement, fillers, thiab lwm yam additives, tshwj xeeb tshaj yog cellulose ethers (HPMC, HEMC).
Kauj ruam 7.1: Cement compatibility. Feem ntau RDPs tau sib xws nrog Ordinary Portland Cement (OPC), dawb cement, thiab calcium aluminate cement. Txawm li cas los, Yog tias koj siv high-alumina cement lossis pozzolans tshwj xeeb, xyuas cov ntaub ntawv. Qee cov polymers hydrolyze nyob rau hauv high-pH ib puag ncig.
Kauj ruam 7.2: Kev sib cuam tshuam nrog cellulose ethers. Cellulose ethers txhim kho dej tuav. RDP txhim kho adhesion. Lawv yog synergistic, tab sis lawv kuj sib tw dej. Yog tias koj daim ntawv qhia pom tias nplaum dhau los yog 'gummy,’ Koj qhov koob tshuaj RDP yuav siab dhau rau koj tus HPMC. Daim ntawv teev cov ntaub ntawv yuav tsis qhia koj daim ntawv qhia, tab sis nws yuav muab koj lub ballpark ntau rau cov tshuab tau zoo.
Koj Cov kauj ruam tom ntej: Sib piv, Kuaj, thiab Ua tiav
Tam sim no koj muaj kev paub los nyeem cov ntaub ntawv RDP hmoov cov chaw tsim khoom nrog kev ntseeg siab. Tsis tsuas yog nyeem ib daim ntawv ntawm cov chaw tsim khoom. Sau peb lossis plaub. Muab lawv tso rau ntawm ib sab. Sib piv Tg, MFFT, adhesion nqi, thiab tej yam kev mob cia.
Khiav qhov kev sim yooj yim. Siv ib daim ntawv qhia mortar. Hloov tsuas yog RDP. Ntsuas qhov ua haujlwm ntawm tes. Kuaj qhov adhesion ntawm ib pobzeb. Saib qhov txawv rau koj tus kheej. Cov ntaub ntawv yog daim ntawv qhia. Koj yog tus tshawb nrhiav. Cia siab rau koj ob txhais tes thiab koj ob lub qhov muag, coj los ntawm daim ntawv no.
Koj muaj qhov no. Pib nyeem cov ntawv teev lus niaj hnub no nrog kev pom tshiab. Koj cov mortar tom ntej no yuav yog koj qhov zoo tshaj plaws.
Tus neeg muab khoom
ConcreteAndMore yog ib qho kev ntseeg siab thoob ntiaj teb cov khoom lag luam ntawm cov khoom siv ua haujlwm siab thiab cov tshuaj siv tsim kho.. Nrog xyoo ntawm kev lag luam kev txawj ntse, peb tshwj xeeb hauv kev muab cov kev daws teeb meem tshiab suav nrog polycarboxylate superplasticizers, pob zeb fibers, defoamers, foaming agents, thiab advanced airgel thermal rwb thaiv tsev cov khoom. Yog tias koj txaus siab rau kev sib xyaw ua ke, thov koj xav tiv tauj peb!