Ii-ether ze-cellulose zokwenza udongwe kunye nodaka lokuplasta

Ukusetyenziswa kwee-cellulose ethers kwi-masonry kunye ne-plastering mortar luphuhliso olubalulekileyo kubuchwepheshe bezixhobo zokwakha zanamhlanje. Ayinakuphucula kuphela ukusebenza kolwakhiwo kunye nokusebenza kwe-bonding ye-mortar, kodwa ikwaphucula nokugcinwa kwamanzi, ukusebenza kakuhle kunye neempawu zayo zokulwa nokuwa, ngaloo ndlela iphucula kakhulu ukusebenza kakuhle kolwakhiwo kunye nomgangatho wesakhiwo.

1. Inkcazo kunye neentlobo zee-ether ze-cellulose

Ii-cellulose ethers ziluhlobo lwee-non-ionic okanye ii-ionic polymer compounds ezenziwe ngokuguqulwa kweekhemikhali ze-cellulose yendalo. Zineempawu zokunyibilika kwamanzi kakuhle kunye nokwenza ifilimu kwaye zihlala zisetyenziswa ekwakheni, kumayeza, ekutyeni, kwiikhemikhali zemihla ngemihla nakwezinye iindawo. Kwi-mortar yokwakha, ii-cellulose ethers ezisetyenziswa kakhulu zezi:

I-Hydroxypropyl methylcellulose (HPMC)

I-Methyl hydroxyethyl cellulose (MHEC)

I-Hydroxyethyl cellulose (HEC)

I-HPMC isetyenziswa kakhulu kwi-masonry kunye ne-plastering mortar ngenxa yokugcina kwayo amanzi kakuhle, ukuzinza okuphezulu kobushushu kunye nokusebenza kakuhle kolwakhiwo.

2. Indima ye-cellulose ether kwi-masonry mortar

Udaka lwemasonry lusetyenziselwa ukudibanisa izinto zokwakha ezifana nezitena namatye. Lufuna ukuba udaka lube nokunamathelana okuhle kunye nokugcinwa kwamanzi ukuthintela ukufuma ukuba kungangeni ngokukhawuleza zizitena ngexesha lokwakha, nto leyo echaphazela isiphumo sokubopha.

Ukuphucula ukugcinwa kwamanzi

I-Cellulose ether inomthamo olungileyo wokugcina amanzi kwaye inokwenza ifilimu entle kwi-mortar ukuze ivale umswakama kwaye ithintele umswakama ukuba ungangeni ngokukhawuleza ngexesha lenkqubo yokwakha. Oku kunceda isamente ukuba ifume ngokupheleleyo, ngaloo ndlela iphucula amandla kunye nokunamathela kwe-mortar.

Phucula ukusebenza kolwakhiwo

Emva kokongeza i-cellulose ether, i-masonry mortar iyathambisa kwaye igudile, inomvakalelo wokwakha olungileyo, kwaye inciphisa iingxaki zomgangatho ezifana nokuqhekeka kwemigodi kunye neentanda.

Ukuphucula ukusebenza kokubopha

Ukugcinwa kakuhle kwamanzi kunye nokuqina kwenza ukuba udaka lube lula ukunamathela kumphezulu wezitena namatye, kungabi lula ukuwa, kwaye kuphucula ukusebenza kakuhle kokwakha.

3. Indima ye-cellulose ether kwi-plaster mortar

Udaka lweplasta lusetyenziswa kakhulu ekulinganiseni nasekuhombiseni iindonga zesakhiwo, kwaye luneemfuneko eziphezulu zokusebenza kolwakhiwo kunye nomgangatho womphezulu.

Lawula izinga lokufunxwa kwesamente

Kwi-plaster mortar, i-cellulose ether inokulibazisa ukulahleka kwamanzi kwaye yenze i-samente inyibilike ngakumbi, ngaloo ndlela yonyusa amandla kwaye inciphise ukuqhekeka.

Thintela ukugoba kwaye uphucule ukusebenza kolwakhiwo lwefacade

Ngenxa yesiphumo esihle sokutyeba kwe-cellulose ether, inokuthintela ukuba i-plaster mortar ingatyibiliki xa yakhiwe phezu komphezulu othe nkqo, nto leyo ephucula ukusebenza kwayo.

Phucula ukusebenza kakuhle

I-Cellulose ether yenza kube lula ukuyigudisa nokuyigqiba i-plaster mortar, iphucula ukusebenza kakuhle kolwakhiwo kunye nomgangatho womphezulu, kwaye yenza umphezulu ube bushelelezi kwaye ube buthathaka ngakumbi.

Ukumelana nokuqhekeka okwandisiweyo

Ukuphuculwa kokugcinwa kwamanzi kunye nokuguquguquka kunceda ukonyusa ukumelana nokuqhekeka komaleko weplasta kunye nokunciphisa umngcipheko wokuqhekeka nokuwa.

4. Izinto ezichaphazela ukusebenza kwe-cellulose ether

Ukusebenza kwe-cellulose ether kunxulumene kakhulu nolwakhiwo lwayo lweekhemikhali, iqondo lokutshintshwa (DS), i-viscosity, ubungakanani bamasuntswana kunye nezinye izinto. Ngokukodwa:

Umgangatho wokutshintsha:Ichaphazela ukunyibilika kwamanzi kunye nesantya sokunyibilika kwawo. Ngokubanzi, inqanaba lokutshintsha phakathi kwe-1.4 kunye ne-1.9 lilungele ngakumbi iinjongo zokwakha.

Ukuxinana:imisela isiphumo sayo sokutyeba kwi-mortar, kwaye uluhlu lwe-viscosity olusetyenziswa rhoqo yi-400~100,000 mPa·s.

Ubungakanani bamasuntswana:ichaphazela ukusasazeka kwayo kunye nesantya sokunyibilika kwayo. Okukhona ubukhulu bayo buncinci, kokukhona inyibilika ngokukhawuleza.

5. Idosi esebenzayo kunye neendlela zokuzikhusela

Kwi-masonry kunye ne-plastering mortar, ubungakanani bokongeza be-cellulose ether bulawulwa ngokubanzi kwi-0.1% ~ 0.4% (ngokusekelwe kubunzima besamente okanye izinto ezisetyenziswa ngesamente). Xa usebenzisa, kufuneka kuqwalaselwe oku kulandelayo:

Xuba ngokupheleleyo ngokulinganayo ukuze uphephe ukuhlangana;

Nika ingqalelo kubushushu bokunyibilika kunye nexesha le-cellulose ether;

Ukusebenza kwee-ether ze-cellulose zeempawu ezahlukeneyo kunye neeklasi ze-viscosity kwahluke kakhulu, kwaye umlinganiselo ongcono kufuneka umiselwe ngokusebenzisa iimvavanyo.

Njengesongezelelo esisebenza kakuhle kakhulu,i-cellulose etheriphucule kakhulu ukusebenza okubanzi kwe-masonry kunye ne-plastering mortar, yenza ulwakhiwo lube ngcono kwaye umgangatho uthembeke ngakumbi. Ngophuhliso lwezixhobo zokwakha eziluhlaza, imfuno yee-cellulose ethers ezinobuhlobo nokusingqongileyo kunye nokusebenza okuphezulu iya kuqhubeka ikhula. Kwizicelo ezisebenzayo, ukukhetha uhlobo olufanelekileyo kunye nemodeli ye-cellulose ether kunye nokulawula ngokwesayensi idosi yayo zizinto ezibalulekileyo ekuqinisekiseni ukuba ukusebenza kwe-mortar kuyahlangabezana nemigangatho.