1. Umgubo welatex ophinda uhlakazwe
Lo mbandela wokunkcenkceshela umlomo yipolymer ekhethekileyo ephezulu yemolekyuli, eyenziwa ibe ngumgubo emva kokutshiza kokumisa. Emva kokunxibelelana namanzi, le powder ingaba yi-emulsion kwakhona, kwaye ineempawu ezifanayo njenge-emulsion. Emva kokuba amanzi aphuke, angenza ifilimu. Ifilimu inokuguquguquka okuphezulu, ukumelana nemozulu ephezulu, kwaye ibonisa ukunamathela okuphezulu kwii-substrates ezahlukeneyo.
Ke ngoko, yinto eyimfuneko ekrwada kudaka oluxutyiweyo, olunokuphucula ukusebenza, ukwandisa amandla, ukuphucula ukunamathela kodaka olomileyo lodaka kwii-substrates ezahlukeneyo, ukuphucula ukuguquguquka, amandla oxinzelelo, kunye nokumelana nodaka lodaka olomileyo. Ukongeza, ukuba ixutywe kunye ne-hydrophobic latex powder, inokwenza udaka olomileyo lungabi namanzi.
2. Iselulosi
I-Cellulose ene-viscosities eyahlukeneyo ineendlela ezahlukeneyo zokusetyenziswa. I-Cellulose ingasetyenziselwa kwi-low-grade putty powder kwiindonga zangaphakathi, ezinokutyebisa ukugcinwa kwamanzi kunye nokunyusa umgangatho. Izinzile ngokwekhemikhali, inokuthintela ukubola, inesiphumo esihle sokugcina amanzi, kwaye ayichatshazelwa lutshintsho kwixabiso le-pH. Ingasetyenziswa ukusuka kwi-50,000 ukuya kwi-200,000 viscosities. Amandla ebhondi ahambelana ngokungafaniyo, i-viscosity iphezulu, kodwa amandla amancinci, ngokubanzi phakathi kwe-50,000 kunye ne-100,000. Ikakhulu kukunyusa umgangatho kunye nokwakhiwa kodaka lomgubo olomileyo, kunye nokunciphisa ngokufanelekileyo umthamo wesamente.
Ukongeza, udaka lwesamente lunexesha lokuqina. Ngexesha lokuqiniswa, ukugcinwa kwezandla kuyafuneka ukuze kugcinwe kumanzi. Ngenxa yokugcinwa kwamanzi kwi-cellulose, umswakama ofunekayo ekuqinisweni komdaka unokufumaneka ekugcinweni kwamanzi e-cellulose, ngoko unokuqiniswa ngaphandle kokugcinwa okukhethekileyo.
3. Lignin
Indima ye-lignin kwi-powder mortar eyomileyo kukumelana nokuqhekeka. Xa i-lignin ihlakazwa emanzini, ikhona ngendlela yeefiber ezimfutshane. Ngokomzekelo, xa ukwakhiwa kweendonga ngomhlaba kwiindawo zasekhaya, iindiza zengqolowa kunye ne-rice straw zongezwa ukukhusela ukuqhekeka. Xa usebenzisa i-lignin, kungcono ukhethe izinto ezicocekileyo ngaphandle kokungcola. Xa uchonga i-lignin, unokujika i-lignin ukuze ubone ukuba kukho uthuli olusele. Ubuninzi be powder, bubi kakhulu umgangatho. Okanye ubeke i-lignin encinci emanzini kwaye ukhangele, ngcono ukusabalalisa, bhetele umgangatho, oku kuthetha ukuba ukuba yongezwa kwi-powder mortar, kulula ukusabalalisa kwaye ayiyi kwenza ibhola.
4. Inorganic bonding imathiriyeli
I-Ash calcium powder yi-calcium hydroxide, into esetyenziswa ngokuqhelekileyo kwi-inorganic bonding. Ikakhulu idlala indima edibeneyo kwi-putty powder ukufezekisa imiphumo yokungangeni kwamanzi kunye nokumelana namanzi. Kukho iindawo ezininzi ezivelisa i-limestone e-China, ngoko ke ukuveliswa kwe-lime calcium powder kuqhelekileyo. Nangona kunjalo, kwezinye iindawo, i-putty mortar eyenziwe nge-lime calcium powder eveliswayo inokutshisa ulusu lwezandla ngexesha lokwakhiwa. Ukusabela kwe-exothermic, ngoko idrafti ye-ash calcium powder ine-alkaline kakhulu. Idrafti enkulu, ingazinzi ngakumbi, kwaye kulula ukuyiqhekeza xa ikrwela eludongeni. Sijonge izinto eziphathekayo ezinothuli oluzinzile lwe-calcium ash powder, ene-drafti encinci, ubumhlophe obuhle, kwaye ayiguquli izandla.
Ixesha lokuposa: Apr-11-2023