Zotsatira za methyl hydroxyethyl cellulose (MHEC) pa matope

Methyl hydroxyethyl cellulose (MHEC)ndi ether ya cellulose yosakhala ionic yomwe imagwiritsidwa ntchito kwambiri popanga makina a matope. Chifukwa cha kukhuthala kwake kwabwino, kusunga madzi, kugwira ntchito bwino komanso kugwirizana, MHEC yakhala imodzi mwa zowonjezera zofunika kwambiri mu matope osakanikirana ndi madzi, makamaka mu guluu wa matailosi, matope a pulasitala, matope apansi, matope odziyimira pawokha ndi zinthu zina.

1. Njira zogwirira ntchito za MHEC mumatope

MHEC, monga polima wosungunuka m'madzi, imatha kupanga yankho lamadzi lofanana kapena colloid mu matope. Ikawonjezeredwa ku matope osakanikirana ndi madzi ndikukhudzana ndi madzi, MHEC imanyowa mwachangu ndikusungunuka, motero imakhudza mawonekedwe a rheological a matope, njira yothira simenti, kusunga madzi ndi mawonekedwe ake. Njira yake yayikulu yogwirira ntchito imaphatikizapo mfundo izi:

Kukhuthala: MHEC imapanga njira yokhuthala kwambiri ikasungunuka m'madzi, zomwe zimatha kuwonjezera kukhuthala kwa dongosolo la matope, motero zimathandizira kuti kapangidwe kake kamveke bwino komanso kuti kasamayende bwino;

Mphamvu yosungira madzi: MHEC ili ndi mphamvu yabwino kwambiri yosungira madzi, zomwe zingachepetse kutayika kwa madzi osakaniza, kuonetsetsa kuti simenti, gypsum ndi zipangizo zina zosungira simenti zili ndi madzi okwanira, ndikuwonjezera kukula kwa mphamvu;

Kupaka mafuta ndi kukonza magwiridwe antchito a zomangamanga: Mamolekyu a cellulose ether amapereka mafuta enaake mu dongosolo la matope, zomwe zimathandiza kugwiritsa ntchito ndi kufalitsa matope ndikuwongolera magwiridwe antchito a zomangamanga;

Mphamvu yokhazikika kwa thovu: MHEC imatha kukhazikika thovu lina panthawi yosakaniza, ndipo kuchuluka koyenera kwa thovu laling'ono kungathandize kuti thovu likhale logwira ntchito bwino komanso kuti madzi asamalowe m'malo mwake;

Kutsekeka kwa magazi: MHEC imachedwetsa madzi a simenti, zomwe zimathandiza kuti nthawi yogwira ntchito ichedwe.

2. Kuwongolera kwapadera kwa ntchito ya matope ndi MHEC

2.1. Kugwira bwino ntchito yomanga

Kugwira ntchito kwa matope ndi chizindikiro chofunikira poyesa kugwiritsa ntchito mosavuta. MHEC imapangitsa kuti matope onyowa azigwira ntchito bwino komanso kuti azithira bwino, zomwe zimapangitsa kuti zikhale zosavuta kupanga. Makamaka mu matope omatira ndi matope omatira, imatha kuchepetsa kwambiri kugwa ndikuwongolera kufanana kwa ntchito.

2.2. Kugwira ntchito bwino kwa kusunga madzi

Kusunga madzi ndi chimodzi mwa zinthu zofunika kwambiri za MHEC. M'malo okhala ndi mabowo (monga njerwa ndi konkire) kapena malo ouma otentha kwambiri, madzi amayamwa mosavuta kapena kusungunuka mwachangu, zomwe zimakhudza momwe simenti imagwirira ntchito. MHEC imatseka chinyezi bwino mwa kupanga filimu yamadzi, kuchepetsa kutuluka kwa madzi ndi kufupika, komanso kukonza mphamvu ndi kumamatira kwa matope.

2.3. Kulimbitsa mphamvu yolumikizana

MHEC imawongolera kufanana ndi kunyowa kwa matope, ndikupanga mawonekedwe okhazikika pakati pa matope ndi zinthu zapansi ndi pamwamba (monga matailosi), zomwe zimathandiza kulimbitsa mphamvu yolumikizirana. Makamaka mu zomatira za matailosi zogwira ntchito bwino, MHEC imatha kugwira ntchito mogwirizana ndi ma polymer emulsions (monga ufa wa latex wosungunukanso).

2.4. Kuwongolera magwiridwe antchito oletsa kugwa

Pakumanga facade, matope amatha kugwa chifukwa cha mphamvu yokoka, zomwe zimakhudza kuwongolera makulidwe ndi kukongola. MHEC imapereka mphamvu yabwino kwambiri yoletsa kugwa, zomwe zimathandiza kuti matopewo asunge mawonekedwe ake pakhoma, zomwe ndizofunikira kwambiri pamatailosi akuluakulu komanso zigawo zokhuthala.

2.5. Kupititsa patsogolo kukhazikika kwa malo osungiramo zinthu komanso kusinthasintha kwa ufa wouma

MHEC yapamwamba kwambiri imakhala ndi ufa wouma wosungunuka bwino komanso wosakanikirana bwino, sikophweka kusonkhana pamodzi, ndipo imalola kuti zinthu za matope zikhale zokhazikika komanso zosungidwa kwa nthawi yayitali.

3. Makhalidwe a MHEC ogwiritsira ntchito m'makina osiyanasiyana a matope

Matailosi Omatira

MHEC imapangitsa kuti ntchito yomanga ikhale yabwino, isamaterereke komanso kuti nthawi yotsegulira ikhale yogwira ntchito, komanso imapangitsa kuti matailosi azigwira ntchito bwino.

Mtondo wa pulasitala

Kukonza kusalala kwa kukanda, kukonza kusunga madzi, komanso kupewa ufa ndi ming'alu.

Pansi pa Mtondo

Sinthani kusinthasintha kwa madzi ndi magwiridwe antchito kuti muwonetsetse kuti makulidwe a malo ogona ndi ofanana.

Mtondo Wodziyimira Wokha

Lamulirani kusinthasintha kwa madzi, pewani kulekanitsa, ndipo onetsetsani kuti pamwamba pake pali posalala.

Chotetezera Kutentha

Mu makina opepuka otetezera kutentha, MHEC imatsimikizira kufalikira kofanana kwa matope, imathandizira kulumikiza ndi kusunga madzi.

4. Malangizo Ogwiritsira Ntchito

Kuwongolera kuchuluka kowonjezera: Kuchuluka kowonjezera kwa MHEC nthawi zambiri kumakhala 0.2% ~ 0.5%, komwe kuyenera kusinthidwa malinga ndi fomula ndi zofunikira pakupanga;

Zofunikira pakubalalitsa: Kuti ntchito yake igwire bwino ntchito, MHEC imafunika kufalikira mofanana panthawi yosakaniza;

Kugwirizana ndi zowonjezera zina: Chisamaliro chiyenera kuperekedwa pa mgwirizano wa MHEC ndi ufa wa latex, retarder, defoamer ndi zowonjezera zina kuti tipewe kukhudzana.

Methyl hydroxyethyl cellulose, monga cellulose ether yokhala ndi magwiridwe antchito apamwamba, imasonyeza kufunika kwabwino kwambiri mu dongosolo la matope. Sikuti imangowonjezera magwiridwe antchito omanga, kukhazikika kwa thupi komanso mphamvu yomaliza ya matope, komanso imagwira ntchito yofunika kwambiri pakulimbikitsa mafakitale ndi kubiriwira kwa zinthu zouma zosakaniza matope. Pamene zipangizo zomangira zikukula kuti zikhale zogwira ntchito bwino komanso kuteteza chilengedwe,Kugwiritsa ntchito MHEC kudzakhala kwakukulu komanso kozama.