Focus on Cellulose ethers

Usetyenziso olwahlukileyo lwezongezo zodaka ezomileyo zomgubo!

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
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