Iyintoni indima ye-HPMC eguquliweyo ekwakheni i-mortar?

I-Hydroxypropyl Methylcellulose eguquliweyo (i-HPMC eguquliweyo)sisithako esibalulekileyo se-polymer kwizixhobo zokwakha, ingakumbi kwiinkqubo ze-mortar zokwakha. Iphucula ngakumbi ukusebenza kwe-HPMC ngeendlela ezibonakalayo okanye zeekhemikhali, ukuze ikwazi ukubonelela ngokusebenza ngcono kolwakhiwo, ukugcinwa kwamanzi, iimpawu zokungatyibiliki kunye nokunamathelana kwiiprojekthi zokwakha.

1. Indlela yokusebenza ye-HPMC eguquliweyo

I-HPMC eguquliweyo yi-non-ionic cellulose ether. Izinzile kwindawo ene-alkaline kwaye inokunyibilika kakuhle kwaye iyasasazeka ngokutshintshwa kwamaqela e-hydroxypropyl kunye ne-methyl kwi-skeleton ye-cellulose. Unyango lokuguqulwa ludla ngokuquka:

Unyango lomphezulu (umzekelo: ukusabela kwe-etherification, ukuphucula ukunyibilika kwangoko okanye ukusasazeka);

Impendulo yokudibanisa (ukuphucula ukuhambelana kunye nokugcinwa kwamanzi);

Utshintsho olubangelwa kukungathobeli amanzi (ukuphucula ukungathobeli nokuxhathisa amanzi);

Unyango lokusabela ngobushushu (ukulawula ubushushu bejeli ukuhlangabezana neemfuno zokwakha), njl.

Ngale ndlela yokuguqula, i-HPMC kulula ukuyisasaza kwi-mortar ukuze yenze isisombululo esifanayo se-colloidal, esinokulungisa ngokufanelekileyo iipropati ze-rheological, ukugcinwa kwamanzi kunye neepropati zokulwa nokuwa kwe-mortar.

2. Indima ephambili ye-HPMC eguquliweyo ekwakheni i-mortar

2.1. Ukuphucula ukugcinwa kwamanzi

I-HPMC eguquliweyo yenza ulwakhiwo lwenethiwekhi olunemilinganiselo emithathu kwi-mortar, nto leyo ethintela ngempumelelo ukulahleka kwamanzi. Olu phawu lubaluleke kakhulu kwinkqubo yokufunxa isamente, enokuqinisekisa ukuba isamente ifunxa ngokupheleleyo, inciphise umngcipheko wokushwabana nokuqhekeka, kwaye iphucule amandla ayo kamva. Ibaluleke kakhulu ekwakheni kwiindawo ezinobushushu obuphezulu nezomileyo.

2.2. Phucula ukusebenza kolwakhiwo

I-HPMC eguquliweyo inefuthe elihle kakhulu lokuthambisa kunye nokuqina, yenza kube lula ukuyisebenzisa nokuyikrwela emva kokuxuba, inciphisa ukumelana nezixhobo zokwakha kwaye iphucula ukusebenza kakuhle kokwakha. Ifanelekile ngokukodwa kwi-mortar yokutshiza ngomatshini, iphucula ukumpompa kunye nokulawula.

2.3. Ukuphucula ukusebenza kokungathobeki

Ukusebenza okuchasene nokugoba kubalulekile kwiinkqubo zokwakha i-facade ezifana nezincamathelisi zethayile kunye nee-plaster mortars. I-HPMC eguquliweyo inokuphucula i-viscosity kunye ne-thixotropy, ukuze i-mortar ibe nokuqina okuhle kwimeko engaguqukiyo, iphephe ukutyibilika emva kokusetyenziswa, kwaye iqinisekise umgangatho wokwakha.

2.4. Phucula ukunamathelana kunye nokuhambelana

I-HPMC eguquliweyo inokuphucula ukunamathelana phakathi kwesamente nezinto ezifana nesiseko kunye neethayile. Iimpawu zayo zokwenza ifilimu ziyenza ikwazi ukwenza umaleko wefilimu oguquguqukayo kumphezulu wesamente, nto leyo ephucula amandla okubopha phakathi kwesamente. Kwangaxeshanye, iphucula ukuhambelana kwayo yonke isamente ukuthintela ukuqhekeka kunye nokwahlukana.

2.5. Lungisa ukuhambelana kunye nokuguquguquka

Iinkqubo ezahlukeneyo zokwakha zineemfuno ezahlukeneyo zokuqina kwesamente. I-HPMC eguquliweyo ine-thixotropy ethile, evumela isamente ukuba ihlale ithambile phantsi koxinzelelo kwaye ibuyisele ngokukhawuleza ukuqina kwayo xa ingashukumi, ihlangabezana neemfuno ezahlukeneyo zokwakha ezifana nokuplasta, ukulinganisa, kunye nokugquma.

3. Izicelo ezithile kwiimortar zokwakha ezahlukeneyo

3.1. Idaka yokuncamathelisa iithayile

I-HPMC eguquliweyo inokuphucula ukungatyibiliki kunye nokugcinwa kwamanzi kwezincamathelisi zeethayile kwaye iphucule amandla okunamathela kweethayile ezinkulu. Ingakumbi kulwakhiwo oluncinci, iqinisekisa ukuba ulwakhiwo lulula kwaye luqinile.

3.2. Ukudibanisa isinyithi

Kwi-plastering mortar, i-HPMC eguquliweyo iphucula ukusebenza kakuhle, inciphisa iingxaki zokuqhekeka nokuqhekeka okubangelwa kukufuma kwamanzi ngokukhawuleza, kwaye iqinisekisa ukuba umphezulu uthambile kwaye uthambile. Ikwafanelekile kwi-mortar yokutshiza ngomatshini ukuphucula ukusebenza kakuhle kokupompa.

3.3. I-mortar yomgangatho kunye ne-mortar yokuzilinganisa

Ukuzilinganisa kuneemfuneko eziphezulu zokunyibilika. I-HPMC eguquliweyo ibonelela ngokunyibilika okufanelekileyo ngaphandle kokulahlekelwa ngamandla, ngelixa ilawula ukwahlukana kwamanzi kwaye iphucula umgangatho womphezulu kunye nokuba tyaba emva kokubekwa.

3.4. Ukulungisa i-mortar

Kwimiqhekezo emincinci kunye nokulungiswa komaleko omncinci, i-HPMC eguquliweyo inokuphucula amandla okubopha phakathi komaleko kunye nomaleko osisiseko, inciphise umngcipheko wokwahlulwa kunye nokugutywa komgubo kwinqanaba lokugqibela, kwaye ifanelekile ekwakheni iindonga, iibhulorho, njl.njl.

4. Iingcebiso zokukhetha kunye nedosi ye-HPMC eguquliweyo

Kwiifomyula zokwenyani, isixa se-HPMC eguquliweyo esongeziweyo ngokubanzi yi-0.2% ~ 0.6% (ngokusekelwe kubunzima obupheleleyo bomgubo owomileyo), kwaye isixa esithile kufuneka simiselwe ngokohlobo lodaka, imeko yokwakha kunye neemfuno zokusebenza.

Iimfuno zokugcina amanzi eziphezulu: khetha i-HPMC eguquliweyo enezinga eliphezulu lokutshintsha kunye namasuntswana amancinci;

I-anti-sagging ephezulu: khetha i-viscosity ephezulu, i-HPMC eguqulweyo ye-thixotropic;

Inkqubo yokuzilinganisa okanye yomgangatho: khetha i-viscosity ephantsi, uhlobo oluhambayo oluphezulu oluguqulweyo lwe-HPMC;

Iimfuneko zokunyibilika ngoko nangoko (i-mortar exutywe kwangaphambili): i-HPMC ekhethiweyo ephathwa ngoko nangoko eguqulweyo.

I-HPMC eguquliweyo idlala indima ebalulekileyo kwimisebenzi emininzi ekwakheni i-mortar, ingakumbi ekuphuculeni ukugcinwa kwamanzi, ukusebenza kolwakhiwo, ukunamathela kunye nokusebenza okuchasene nokuwa. Ayigcini nje ngokuphucula iimpawu zoomatshini kunye nemiphumo yokwakha yesamente, kodwa ikwabonelela ngesiseko esiqinileyo sezinto zobugcisa bokwakha banamhlanje (ezifana nokutshiza ngoomatshini, ukwakhiwa kwefilimu encinci, kunye nokujika okuzilinganiselayo). Kwixesha elizayo, ngokuphuhliswa kwezixhobo zokwakha eziluhlaza kunye nezixhobo zokwakha ezisebenza kakhulu, ukusetyenziswa kwe-HPMC eguquliweyo kwicandelo lesamente yokwakha kuya kuba kubanzi kwaye kusebenze kakuhle.