I-Cellulose ether luhlobo lwe-polymer compound efunyenwe ngokuguqulwa kweekhemikhali ze-cellulose yendalo, enokunyibilika kakuhle, ukuqina, ukugcinwa kwamanzi kunye neempawu zokwenza ifilimu. Iindidi eziqhelekileyo ze-cellulose ether ziqukai-hydroxypropyl methylcellulose (HPMC), i-methylcellulose (MC), i-hydroxyethyl cellulose (HEC), i-hydroxyethyl methylcellulose (HEMC), njl. Zisetyenziswa kakhulu kwizixhobo zokwakha, ingakumbi kwiinkqubo zedaka ezixutywe nodaka olomileyo.
1. Indlela yokusebenza kwe-cellulose ether kwi-mortar
Kwiifomyula zemortar zanamhlanje, i-cellulose ether, njengesongezo esibalulekileyo seekhemikhali, idlala indima kakhulu kwezi zinto zilandelayo:
1.1. Ukugcinwa kwamanzi okuphuculweyo
Iimolekyuli ze-cellulose ether zizityebi kumaqela athanda amanzi, anokufunxa amanzi aze awavale, alibazise ukuphuma kwamanzi emkhenkceni nasekungeneni kwamanzi, avumele amanzi ukuba athathe inxaxheba ngokupheleleyo kwimpendulo yokufunxa isamente, kwaye aphucule ukusebenza kakuhle kokwakheka kwamandla okuqala. Xa wakha phezu kwezinto ezifunxa amanzi ngamandla (ezifana nekhonkrithi evuthelweyo, izitena), i-cellulose ether inokuthintela ngempumelelo ukufunxa amanzi amaninzi kwaye iphephe ukuqhekeka kunye nokuqhekeka komgubo.
1.2. Ukuqinisa nokuphucula ukusebenza kolwakhiwo
I-cellulose ether inokuphucula kakhulu i-viscosity kunye ne-thixotropy ye-mortar, ukuze i-mortar ibonise ukugeleza okuhle kunye nokusebenza kakuhle kolwakhiwo xa ixutywa kwaye isetyenziswa, kodwa ineempawu zokunamathela eziphezulu kunye nokungatyibiliki kwimeko engaguqukiyo, ngaloo ndlela iphucula ukuguda kolwakhiwo kwaye inciphise ukugoba.
1.3. Ukuphucula amandla okubopha
Ngokuphucula ukuhlanganiswa kwe-mortar kunye nokusebenza kwe-interfacial bonding kunye ne-substrate, i-cellulose ether iphucula amandla e-bonding ye-mortar, ithintela iingxaki ezifana ne-delamination kunye ne-hollowing kwinqanaba lokugqibela, kwaye ifanelekile ngakumbi kwi-adhesives zethayile, ii-mortar ezizilinganisayo kunye neenkqubo zokufakelwa kwangaphandle.
1.4. Ukulibazisa ixesha lokuseta kunye nokuphucula ukusebenza
I-cellulose ether inokwandisa ngokufanelekileyo ixesha lokuvulwa kwe-mortar, ivumela abasebenzi ukuba babe nexesha elingakumbi lokulungisa nokulungisa ngexesha lokwakha, ngelixa bephepha iziphene zokwakha ezibangelwa kukomiswa kwangaphambi kwexesha.
2. Ukusetyenziswa kwe-cellulose ether kwiintlobo ezahlukeneyo zeemortars
2.1. Ukudibanisa isinyithi
Ukongeza i-cellulose ether kwi-plastering mortar kunokuphucula ukunamathelana phakathi kwe-mortar nodonga, kwaye kuthintele iingxaki ezinje "ngokuqhekeka nokuqhekeka". Ukugcinwa kwayo kakuhle kwamanzi kunokuqinisekisa ukoma okufanayo komaleko wothuthu kwaye kuphucule isiphumo sokugqiba.
2.2. Isincamathelisi sethayile
Izincamathelisi zethayile zineemfuneko eziphezulu zokugcina amanzi kunye neempawu zokungatyibiliki. I-Cellulose ether inokuphucula kakhulu amandla ayo okunamathela, ithintele iithayile ekutyibilikeni, kwaye iqinisekise impembelelo entle yokunamathela ngasemva kweethayile xa amanzi efunxa kancinci.
2.3. I-mortar ezenzela umlinganiselo
I-Cellulose ether inika ukuhambelana okufunekayo kunye nokugcinwa kwamanzi kwi-mortar elungelelanisayo ukuqinisekisa ukuba ifakwa ngokulinganayo ngaphandle kweengxaki zomgangatho ezifana nokopha kunye nokuqhekeka. Iindidi ze-cellulose ether ezine-viscosity ephantsi zifanelekile ngokukodwa kwiindlela ezinjalo.
2.4. Udaka lokuvala i-insulation (inkqubo ye-EIFS)
Kwinkqubo yokukhusela udonga lwangaphandle, i-cellulose ether yongezwa kwi-bonding mortar kunye ne-anti-cracking mortar ukuphucula ukumelana nee-crack, ukomeleza amandla e-bonding, kunye nokuphucula ukuqina kunye nokuzinza kwenkqubo iyonke.
2.5. Udaka lokwakha oluxutywe nodaka olomileyo
Udaka oluxutywe nodaka oluxutywe nodaka ludla ngokusetyenziswa ekwakheni udonga lwezitena. I-cellulose ether inokuphucula ukufunxwa kwayo, ukugcinwa kwamanzi kunye nokungawi, yenze udonga lufane kwaye luzele, kwaye iphucule uxinano kunye namandla okucinezelwa kodonga.
3. Izinto ezichaphazela ukusebenza
Ukusebenza kwe-cellulose ether kunempembelelo enkulu ekusebenzeni kokugqibela kwe-mortar, ikakhulu kubandakanya ezi zinto zilandelayo:
Udidi lwe-Viscosity: I-ether ye-cellulose e-viscosity ephezulu ifanelekile kwiimortars ezifuna iipropati eziphezulu zokungatyibiliki, ngelixa i-viscosity ephantsi ifanelekile kwiimveliso ezizilinganisayo.
Inqanaba lokutshintshwa (DS) kunye nokutshintshwa kwe-molar (MS): Ezi parameter zimbini zimisela ukunyibilika, ukugcinwa kwamanzi kunye nokuzinza kwe-cellulose ether.
Ubungakanani bamasuntswana: Umgubo ocolekileyo kulula ukuwusasaza kwi-mortar, nto leyo ephucula ukufana kwawo xa ewonke.
Izinga lokunyibilika: I-cellulose ether enyibilika ngokukhawuleza inceda ukuphucula ukusebenza kakuhle kwemveliso kunye nokusebenza kakuhle kokuxuba.
4. Iingcebiso zokusetyenziswa kunye neendlela zokuzikhusela
Khetha i-viscosity efanelekileyo kunye nohlobo lwe-cellulose ether ukuze ihambelane neemfuno ezithile zenkqubo ye-mortar.
Inkqubo yokuxuba kufuneka iqinisekise ukuba i-cellulose ether isasazeke ngokulinganayo ukuze kuthintelwe ukuba i-agglomeration yendawo ichaphazele ukusebenza.
Lawula ubungakanani bokongeza, ngokubanzi yi-0.1%-0.5% yobunzima besamente. Ukuba ininzi kakhulu kunokuchaphazela amandla kunye nexesha lokomisa.
Xa kusetyenziswa nezinye izongezo (ezifana nomgubo welatex ophinda unyibilike, iarhente yokunciphisa amanzi, njl.njl.), kufuneka kuqwalaselwe uvavanyo lokuhambelana.
Njengenye yezona zinto ziphambili ezisetyenziswa kwi-mortar yanamhlanje exutywe nodaka,I-cellulose ether idlala indima engenakutshintshwa ekusebenzeni kolwakhiwo, iipropati zoomatshini kunye nokuqina. Ngophuhliso lwezakhiwo eziluhlaza kunye nezakhiwo ezenziwe ngaphambili, imfuno yodaka olusebenza kakuhle iyaqhubeka nokukhula, kwaye iintlobo kunye nobuchwepheshe be-cellulose ether nazo zihlala ziphuculwa. Ukukhethwa okufanelekileyo kunye nokusetyenziswa kwesayensi kwe-cellulose ether kuya kuphucula kakhulu umgangatho weemveliso zodaka kunye nokusebenza kakuhle kokwakha, nto leyo ebaluleke kakhulu kuphuhliso lwangoku lwezixhobo zokwakha.
Ixesha leposi: Julayi-10-2025