Ma cellulose ethers ogwiritsidwa ntchito popanga matope ndi pulasitiki

Kugwiritsa ntchito ma cellulose ethers mu matope omangira ndi opaka pulasitala ndi chitukuko chofunikira kwambiri paukadaulo wamakono wa zipangizo zomangira. Sikuti kungowonjezera magwiridwe antchito omangira ndi maukonde a matope, komanso kumawonjezera kusunga madzi, kugwira ntchito bwino komanso mphamvu zoletsa kugwa, motero kumawonjezera kwambiri magwiridwe antchito omangira komanso ubwino wa nyumba.

1. Tanthauzo ndi mitundu ya ma ether a cellulose

Ma ether a cellulose ndi gulu la mankhwala a polymer omwe si a ionic kapena ionic omwe amapangidwa ndi kusintha kwa mankhwala a cellulose yachilengedwe. Ali ndi madzi abwino osungunuka komanso mphamvu zopangira filimu ndipo nthawi zambiri amagwiritsidwa ntchito popanga zinthu, mankhwala, chakudya, mankhwala a tsiku ndi tsiku ndi ntchito zina. Pomanga matope, ma ether a cellulose omwe amagwiritsidwa ntchito kwambiri ndi awa:

Hydroxypropyl methylcellulose (HPMC)

Methyl hydroxyethyl cellulose (MHEC)

Hydroxyethyl cellulose (HEC)

HPMC imagwiritsidwa ntchito kwambiri pa matope omangira ndi opaka pulasitala chifukwa cha kusunga bwino madzi, kukhazikika kwa kutentha komanso magwiridwe antchito abwino kwambiri omangira.

2. Udindo wa ether wa cellulose mu matope opangidwa ndi miyala

Dothi la miyala limagwiritsidwa ntchito polumikiza zipangizo za miyala monga njerwa ndi miyala. Zimafunika kuti dothi likhale lolimba bwino komanso kuti madzi asasungidwe bwino kuti chinyezi chisalowe mwachangu ndi njerwa panthawi yomanga, zomwe zimakhudza mphamvu ya mgwirizano.

Kuthandiza kusunga madzi bwino

Cellulose ether ili ndi mphamvu yabwino yosunga madzi ndipo imatha kupanga filimu yabwino mu matope kuti isunge chinyezi ndikuletsa chinyezi kuti chisalowe mwachangu panthawi yomanga. Izi zimathandiza simenti kuti iume mokwanira, motero imalimbitsa mphamvu ndi kumamatira kwa matope.

Sinthani magwiridwe antchito omanga

Pambuyo powonjezera cellulose ether, matope a masonry amakhala ofewa komanso osalala, okhala ndi mawonekedwe abwino omangira, ndipo amachepetsa mavuto abwino monga kuphulika kwa mabowo ndi ming'alu.

Limbikitsani ntchito yolumikizana

Kusunga bwino madzi ndi kukhuthala kumapangitsa kuti matope azigwira mosavuta pamwamba pa njerwa ndi miyala, sizingagwe mosavuta, komanso zimapangitsa kuti ntchito yomanga nyumba ikhale yolimba.

3. Udindo wa ether wa cellulose mu matope a pulasitala

Dothi la pulasitala limagwiritsidwa ntchito makamaka polinganiza ndi kukongoletsa makoma a nyumba, ndipo lili ndi zofunikira zapamwamba pakugwira ntchito bwino kwa nyumbayo komanso ubwino wake pamwamba pake.

Sinthani kuchuluka kwa madzi m'simenti

Mu matope a plaster, cellulose ether imatha kuchedwetsa kutayika kwa madzi ndikupangitsa kuti simenti ikhale yokwanira, motero imawonjezera mphamvu ndikuchepetsa ming'alu.

Pewani kugwa ndikuwongolera magwiridwe antchito a nyumba ya facade

Chifukwa cha kukhuthala kwabwino kwa ether ya cellulose, imatha kuletsa matope a pulasitala kuti asagwedezeke akamapangidwa pamwamba pawo, zomwe zimapangitsa kuti ntchito igwire bwino.

Kupititsa patsogolo kugwira ntchito bwino

Cellulose ether imapangitsa kuti matope a pulasitala azisalala bwino komanso kumalizidwa mosavuta, imapangitsa kuti ntchito yomanga ikhale yogwira mtima komanso yabwino, komanso imapangitsa kuti pamwamba pake pakhale posalala komanso pofewa.

Kukaniza ming'alu bwino

Kusunga madzi bwino komanso kusinthasintha kumathandiza kulimbitsa kukana kwa ming'alu ya pulasitala ndikuchepetsa chiopsezo cha ming'alu ndi kugwa.

4. Zinthu zomwe zimakhudza magwiridwe antchito a efa ya cellulose

Kagwiridwe ka ntchito ka ether ya cellulose kamagwirizana kwambiri ndi kapangidwe kake ka mankhwala, kuchuluka kwa cholowa m'malo (DS), kukhuthala, kukula kwa tinthu ndi zina. Makamaka:

Mlingo wa kusintha:zimakhudza kusungunuka kwa madzi ake komanso kuchuluka kwa kusungunuka kwake. Kawirikawiri, kusintha pakati pa 1.4 ndi 1.9 ndikoyenera kwambiri pa ntchito yomanga.

Kukhuthala:imatsimikiza mphamvu yake yokhuthala mu matope, ndipo kuchuluka kwa kukhuthala komwe kumagwiritsidwa ntchito kwambiri ndi 400 ~ 100,000 mPa·s.

Kukula kwa tinthu:zimakhudza kufalikira kwake ndi kuchuluka kwake kosungunuka. Tinthu tating'onoting'ono tikakhala tating'ono, timasungunuka mofulumira.

5. Mlingo woyenera komanso njira zodzitetezera

Mu matope opangidwa ndi miyala ndi pulasitala, kuchuluka kwa ether ya cellulose nthawi zambiri kumayendetsedwa pa 0.1% ~ 0.4% (kutengera kulemera kwa simenti kapena zinthu zomangira simenti). Mukamagwiritsa ntchito, muyenera kusamala kwambiri:

Sakanizani bwino mofanana kuti mupewe kusonkhana;

Samalani kutentha kwa kusungunuka ndi nthawi ya efa ya cellulose;

Kagwiridwe ka ntchito ka ma ether a cellulose a mitundu yosiyanasiyana ndi ma grade a viscosity ndi kosiyana kwambiri, ndipo chiŵerengero chabwino kwambiri chiyenera kudziwika kudzera mu zoyeserera.

Monga chowonjezera chokhala ndi magwiridwe antchito abwino kwambiri,ether ya celluloseyasintha kwambiri magwiridwe antchito a matope omangira ndi opaka pulasitala, zomwe zapangitsa kuti zomangamanga zikhale zogwira mtima komanso zabwino kwambiri. Ndi chitukuko cha zipangizo zomangira zobiriwira, kufunikira kwa ma ether a cellulose omwe ndi ochezeka komanso ogwira ntchito bwino kudzapitirira kukula. Mu ntchito zothandiza, kusankha mtundu woyenera ndi chitsanzo cha ether ya cellulose komanso kuwongolera mwasayansi mlingo wake ndiye chinsinsi chowonetsetsa kuti magwiridwe antchito a matopewa akukwaniritsa miyezo.