Izinto ezichaphazela ukugcinwa kwamanzi kwee-cellulose ethers

Ii-cellulose ethers ziluhlobo olubalulekileyo lwezinto zepolymer ezinyibilikayo emanzini, ezisetyenziswa kakhulu ekwakheni, kumayeza, ekutyeni, kwiikhemikhali zemihla ngemihla nakwamanye amashishini. Kwicandelo lokwakha (njenge-mortar exutywe nodaka, i-tile adhesive, i-putty powder, njl.njl.), yenye yezona mpawu zibalulekileyo zeii-ether ze-cellulosekukugcinwa kwamanzi kwayo, oko kukuthi, inokugcina amanzi kwinkqubo ngexesha lokusetyenziswa ukuthintela amanzi ukuba angatshi okanye afunxwe ngokukhawuleza, ngaloo ndlela iqinisekisa ukwakhiwa nokusebenza kokugqibela kwezinto. Zininzi izinto ezichaphazela ukugcinwa kwamanzi kwee-ethers ze-cellulose, ikakhulu kubandakanya ulwakhiwo lwayo lweekhemikhali, ubungakanani bokutshintshwa kwayo, i-viscosity, ubungakanani bokongeza, ubungakanani bamasuntswana, izinga lokunyibilika, kunye nezinto zangaphandle zokusingqongileyo.

1. Izinto ezibangela ii-cellulose ethers ngokwazo

Inqanaba lokuTshintsha (DS) kunye nokufana

Inqanaba lokutshintshwa libhekisa kwinani eliqhelekileyo lamaqela e-hydroxyl kwiimolekyuli ze-cellulose ezithatyathelwe indawo ngamaqela e-ether. Ngokubanzi, xa inqanaba lokutshintshwa liphezulu, kokukhona i-hydrophilicity ye-cellulose ethers iqina kwaye kokukhona amandla okugcina amanzi engcono. Nangona kunjalo, kukwakho nexabiso elithile elibalulekileyo. Ixabiso eliphezulu kakhulu liya kukhokelela ekunyibilikeni kakhulu kunye nokuthambisa okugqithisileyo, okuya kuchaphazela uzinzo lwesakhiwo sezinto.

Ukufana kokutshintshwa nako kubalulekile. Okukhona utshintsho lufana ngakumbi, kokukhona isakhiwo senethiwekhi esenziwe yi-cellulose ether emanzini sizinzile ngakumbi, kwaye kokukhona sinokugcina umswakama ngempumelelo.

Ukuqaqamba

Ubuninzi be-cellulose ether emanzini buchaphazela ngokuthe ngqo "amandla ayo okutywina" ukufuma. Ngokubanzi, ii-cellulose ethers ezine-viscosity ephezulu (ezifana ne-HPMC, i-HEMC, njl.njl.) zinokwenza isakhiwo senethiwekhi esinobukhulu obuthathu, zinciphise isantya sokufuduka kwamanzi, ngaloo ndlela ziphucule ukugcinwa kwamanzi. Nangona kunjalo, ubunzima obukhulu kakhulu buya kuchaphazela ukusebenza kwezinto, njengokwanda kobunzima bokwakha okanye ukungalingani kombala.

Ubunzima be-molecular kunye ne-degree ye-polymerization

Okukhona ubunzima bemolekyuli ye-cellulose ether bukhulu, kokukhona ukuxinana phakathi kwamacandelo eetyathanga kuqina, kokukhona isisombululo se-colloidal esibunjiweyo siqina ngakumbi, kwaye kokukhona ukugcinwa kwamanzi kuqina ngakumbi. Nangona kunjalo, kufuneka kubekho ulungelelwano phakathi kokugcinwa kwamanzi amaninzi kunye nokunyibilika okulula.

Ubungakanani beenxalenye kunye nokusasazeka kwazo

Ubungakanani besuntswana ye-cellulose ether powder eluhlaza buchaphazela izinga layo lokunyibilika kunye nokusasazeka kwayo emanzini. Okukhona ubukhulu besuntswana buncinci, kokukhona izinga lokunyibilika likhawuleza, kwaye kulula ukusasazwa ngokulinganayo kwizinto, ngaloo ndlela kudlala indima engcono ekugcineni amanzi. Nangona kunjalo, i-powder ecolekileyo kakhulu kulula ukufunxa umswakama kunye nokuhlangana ngexesha lokugcina nokuthuthwa, okuchaphazela ukusebenza.

2. Sebenzisa iifomyula kunye nezinto ezinxulumene nenkqubo

Isixa esongeziweyo

Ubungakanani be-cellulose ether eyongeziweyo kwifomyula buchaphazela ngokuthe ngqo ukusebenza kokugcinwa kwamanzi. Ngokwesiqhelo, njengoko inani lokongeza lisanda, ukugcinwa kwamanzi kuphucuka kakhulu, kodwa emva kokudlula uluhlu oluthile, isiphumo sokwanda siya kuthanda ukugcwala, kwaye kuya kuchaphazela neendleko kunye nokusebenza kolwakhiwo.

Ukufunxwa kwamanzi kwezinye izinto ezikrwada

Ukufunxwa kwamanzi kwezinto ezikrwada ezifana nesamente, igypsum, isanti, njl.njl. kuya kuchaphazela nokugcinwa kwamanzi. Izinto ezifunxwayo ngamandla ziya kufunxwa ngokukhawuleza amanzi kwinkqubo, zikhawulezise ukoma, kwaye zenze isiphumo sokugcinwa kwamanzi se-cellulose ether sibe sibaluleke ngakumbi. Ke ngoko, kolu hlobo lwenkqubo, kufuneka i-cellulose ether ene-viscosity ephezulu okanye ubuninzi bokongeza.

Umlinganiselo wamanzi nesamente (W/C)

Kwizinto zokwakha, utshintsho kumlinganiselo wamanzi nesamente luchaphazela nokugcinwa kwamanzi kwe-cellulose ether. Xa umlinganiselo wamanzi nesamente uphantsi, kukho amanzi amancinci kwinkqubo, kwaye uxinzelelo lokugcinwa kwamanzi lwe-cellulose ether lukhulu; xa umlinganiselo wamanzi nesamente uphezulu, kukho amanzi aneleyo kwinkqubo, kwaye i-cellulose ether inokulibazisa ukulahleka kwamanzi ngempumelelo.

3. Izinto ezisingqongileyo

Ubushushu

Ukunyuka kwamaqondo obushushu kuya kukhawulezisa izinga lokuphuma kwamanzi emkhenkceni, kwaye kubeke phambili iimfuno eziphezulu zokugcina amanzi kwi-cellulose ether. Ingakumbi kwiindawo ezishushu nezomileyo, ukuba ukusebenza kokugcina amanzi kwi-cellulose ether kuphantsi, kulula ukubangela ukuba i-mortar, i-putty kunye nezinye izinto zokwakha ziqhekeke, zibe ngumgubo kwaye zingabi namandla aneleyo.

Kufuneka kuqatshelwe ukuba ukunyibilika kwe-cellulose ether kubushushu obuphezulu nako kuya kutshintsha, kwaye ezinye iintlobo ziya kuba yijeli, nto leyo echaphazela umsebenzi wayo wokulawula ukufuma.

Umswakama kunye nesantya somoya

Xa umswakama womoya uphantsi kwaye isantya somoya siphezulu, ukufuma kwamanzi kuyakhawuleza, kwaye inkqubo inokuba sengozini yokulahlekelwa ngamanzi, nto leyo efuna iarhente yokugcina amanzi esebenza kakuhle ukuze ijongane nawo. Kwimeko enomswakama ophezulu, amanzi akulula ukuwalahla, kwaye uxinzelelo lokugcinwa kwamanzi lwe-cellulose ether luncinci kakhulu.

4. Izinto zokwakha

Ubukhulu bokugquma kunye nendlela yokusebenza

Ukwambathisa umaleko omncinci kunokwenzeka ukuba kulahleke amanzi kunokuba kwambathisa ubuninzi, ngoko ke ukwakhiwa komaleko omncinci kuxhomekeke kakhulu kwi-cellulose ether enokugcinwa kwamanzi okuphezulu. Kwangaxeshanye, ukufana kokuxuba, indlela yokugquma (yoomatshini okanye yesandla), izinga lokufunxwa kwamanzi kwi-substrate, njl.njl. kuya kuchaphazela ukusebenza kwenyani kokusebenza kokugcinwa kwamanzi.

Ukufunxwa kwamanzi kwe-substrate

Umzekelo, ukufunxwa kwamanzi kwezinto ezifana nezitena, ikhonkrithi, kunye neebhodi zegypsum kwahlukile, nto leyo eya kuchaphazela amandla e-cellulose ether okugcina amanzi. Okukhona i-substrate ifunxwa kakhulu, kokukhona iya kufunxwa ngokukhawuleza amanzi kwi-mortar, kwaye i-cellulose ether kufuneka yenze ngokukhawuleza umqobo wokugcina amanzi.

IIpropati yokugcina amanzi ye-cellulose etheryipropati emiselwa zizinto ezininzi. Ulwakhiwo lwayo (njengobungakanani bokutshintshwa, i-viscosity, ubungakanani bamasuntswana), indawo yokusetyenziswa (ubushushu, ukufuma, isantya somoya) kunye nefomyula yokwakha (ubungakanani bokongeza, umlinganiselo wamanzi nesamente, iimpawu zezinto eziluhlaza) ziya kuba nefuthe elikhulu ekusebenzeni kwayo. Ke ngoko, ekusetyenzisweni kwayo, uhlobo kunye nobungakanani be-cellulose ether kufuneka zikhethwe ngokufanelekileyo ngokwemeko ethile yokusetyenziswa kunye noyilo lwefomyula ukuze kufezekiswe isiphumo esingcono sokugcina amanzi kunye nokusebenza kokwakhiwa.