1. Iingxaki eziqhelekileyo kwi-putty powder
Yoma ngokukhawuleza. Oku kubangelwa ubukhulu becala ubuninzi be-ash calcium powder eyongeziweyo (inkulu kakhulu, isixa se-ash calcium powder esisetyenziswe kwi-putty formula sinokuncitshiswa ngokufanelekileyo) sinxulumene nesantya sokugcinwa kwamanzi kwifayibha, kwaye inxulumene nokoma kodonga.
Peel kwaye uqengqe. Oku kuhambelana nesantya sokugcinwa kwamanzi, okulula ukwenzeka xa i-viscosity ye-cellulose iphantsi okanye inani lokongezwa lincinci.
I-De-powdering yodonga lwangaphakathi lwe-putty powder. Oku kuhambelana nomthamo we-ash calcium powder eyongeziweyo (ubungakanani be-ash calcium powder kwi-putty formula incinci kakhulu okanye ukucoceka kwe-ash calcium powder kuphantsi kakhulu, kunye nomthamo we-ash calcium powder kwi-putty powder formula kufuneka inyuswe ngokufanelekileyo), kwaye inxulumene nokongezwa kweselulosi. Kukho ubudlelwane phakathi kobuninzi kunye nomgangatho, obonakaliswa kwizinga lokugcinwa kwamanzi kwimveliso. Izinga lokugcinwa kwamanzi liphantsi, kwaye i-ash calcium powder (i-calcium oxide kwi-ash calcium powder ayiguqulwanga ngokupheleleyo kwi-calcium hydroxide ye-hydration) ixesha alanele, elibangelwa.
bubbly. Oku kuhambelana nokufuma okomileyo kunye nokunyuka kodonga, kwaye kunxulumene nokwakhiwa.
Amanqaku ayavela. Oku kuhambelana ne-cellulose, eneempawu ezimbi zokwenza ifilimu. Ngelo xesha, ukungcola kwi-cellulose kusabela kancinci nge-ash calcium. Ukuba ukusabela kubukhali, i-putty powder iya kubonakala kwimeko yentsalela yebhontshisi. Ayinakubekwa eludongeni, kwaye ayinayo amandla adibeneyo ngexesha elifanayo. Ukongeza, le meko iyenzeka nakwiimveliso ezifana ne-carboxymethyl exutywe neselulosi.
Iicraters kunye nemingxuma yokuqhafaza ziyavela. Ngokucacileyo oku kunxulumene nokuxinana komphezulu wamanzi we-hydroxypropyl methylcellulose isisombululo samanzi. Uxinzelelo lwetafile yamanzi kwisisombululo samanzi se-hydroxyethyl ayicacanga. Kuya kulunga ukwenza unyango lokugqiba.
Emva kokuba iputty yomile, kulula ukuqhekeka kwaye ijike ibe tyheli. Oku kuhambelana nokongezwa komthamo omkhulu we-ash-calcium powder. Ukuba inani le-ash-calcium powder liyongezwa kakhulu, ubunzima be-putty powder buya kwanda emva kokumisa. Ukuba i-putty powder ayinakho ukuguquguquka, iya kuqhekeka ngokulula, ngakumbi xa iphantsi kwamandla angaphandle. Kwakhona kuhambelana nomxholo ophezulu we-calcium oxide kwi-ash calcium powder.
2. Kutheni le nto i-putty powder iba ncinane emva kokufaka amanzi?
I-Cellulose isetyenziswa njenge-thickener kunye ne-agent egcina amanzi kwi-putty. Ngenxa ye-thixotropy ye-cellulose ngokwayo, ukongezwa kwe-cellulose kwi-putty powder kukhokelela kwi-thixotropy emva kokuba amanzi afakwe kwi-putty. Le thixotropy ibangelwa ukutshatyalaliswa kwesakhiwo esidibeneyo samacandelo kwi-putty powder. Esi sakhiwo sivela ekuphumleni kwaye siphule phantsi koxinzelelo. Oko kukuthi, i-viscosity iyancipha phantsi kokuvuselela, kwaye i-viscosity iphinda ibuyele xa imile.
3. Sisiphi isizathu sokuba i-putty ibe nzima kakhulu kwinkqubo yokukhuhla?
Kule meko, i-viscosity ye-cellulose esetyenziswa ngokubanzi iphezulu kakhulu. Abanye abavelisi basebenzisa i-200,000 yeselulosi ukwenza i-putty. I-putty eveliswe ngolu hlobo ine-viscosity ephezulu, ngoko ivakalelwa kakhulu xa ikhuhla. Isixa esicetyiswayo se-putty kwiindonga zangaphakathi yi-3-5 kg, kwaye i-viscosity yi-80,000-100,000.
4. Kutheni i-cellulose ye-viscosity efanayo ivakalelwa ngokwahlukileyo ebusika nasehlotyeni?
Ngenxa ye-thermal gelation yemveliso, i-viscosity ye-putty kunye nomdaka iya kuncipha ngokuthe ngcembe ngokunyuka kweqondo lokushisa. Xa iqondo lokushisa lidlula ukushisa kwe-gel yemveliso, imveliso iya kuhlanjululwa emanzini kwaye ilahlekelwe yi-viscosity yayo. Ukushisa kwegumbi ehlotyeni ngokuqhelekileyo kungaphezulu kwama-30 degrees, okuhluke kakhulu kwiqondo lokushisa ebusika, ngoko i-viscosity iphantsi. Kunconywa ukuba ukhethe imveliso ene-viscosity ephezulu xa usebenzisa imveliso ehlobo, okanye ukwandisa inani le-cellulose, kwaye ukhethe imveliso enobushushu obuphezulu be-gel. Zama ukungasebenzisi i-methyl cellulose ehlotyeni. Ubushushu bejeli buphakathi kwe-Around 55 degrees, ukuba iqondo lokushisa liphezulu kancinci, i-viscosity yayo iya kuchaphazeleka kakhulu.
Ixesha lokuposa: Mar-22-2023