Eyona nto ibalulekileyo kwi-cellulose ether kukugcinwa kwamanzi kwayo kwizinto zokwakha. Ngaphandle kokongezwa kwe-cellulose ether, umaleko omncinci we-mortar entsha uyoma ngokukhawuleza kangangokuba isamente ayinakukwazi ukufuma ngendlela eqhelekileyo kwaye i-mortar ayinakuqina kwaye ifikelele ekuhlanganeni okuhle. Kwangaxeshanye, ukongezwa kwe-cellulose ether kwenza i-mortar ibe ne-plasticity elungileyo kunye nokuguquguquka, kwaye kuphucula amandla okubopha kwe-mortar. Makhe sithethe ngempembelelo ekusetyenzisweni kwe-mortar exutywe nomileyo ekusebenzeni kwemveliso ye-cellulose ether.
1. Ubunzima be-cellulose ether
Ubunzima be-cellulose ether buchaphazela ukunyibilika kwayo. Umzekelo, xa ubunzima be-cellulose ether buphantsi, kokukhona inyibilika ngokukhawuleza emanzini kwaye kuphuculwe ukusebenza kokugcinwa kwamanzi. Ke ngoko, ubunzima be-cellulose ether kufuneka bufakwe njengenye yeempawu zayo zophando. Ngokubanzi, intsalela yesihluzo se-cellulose ether enobunzima obungaphezulu kwe-0.212mm akufuneki idlule kwi-8.0%.
2. Izinga lokunciphisa umzimba lokomisa
Izinga lokulahleka kobunzima bokomisa libhekisa kwipesenti yobunzima bezinto ezilahlekileyo kubunzima besampulu yokuqala xa i-cellulose ether yomiswa kubushushu obuthile. Kumgangatho othile we-cellulose ether, izinga lokulahleka kobunzima bokomisa liphezulu kakhulu, nto leyo eya kunciphisa umxholo wezithako ezisebenzayo kwi-cellulose ether, ichaphazele isiphumo sokusetyenziswa kwamashishini asezantsi, kwaye yonyuse iindleko zokuthenga. Ngokwesiqhelo, ukulahleka kobunzima xa komiswa i-cellulose ether akudluli kwi-6.0%.
3. Umxholo wothuthu lwe-sulfate kwi-cellulose ether
Ngomgangatho othile we-cellulose ether, umxholo wothuthu uphezulu kakhulu, nto leyo eya kunciphisa umxholo wezithako ezisebenzayo kwi-cellulose ether kwaye ichaphazele isiphumo sokusebenza kwamashishini asezantsi. Umxholo wothuthu lwe-sulfate we-cellulose ether luphawu olubalulekileyo lokusebenza kwayo. Xa idibene nemeko yangoku yemveliso yabavelisi be-cellulose ether abakhoyo kwilizwe lam, ngokuqhelekileyo umxholo wothuthu we-MC, HPMC, HEMC akufuneki udlule kwi-2.5%, kwaye umxholo wothuthu we-HEC cellulose ether akufuneki udlule kwi-10.0%.
4. Ukuqina kwe-cellulose ether
Ukugcinwa kwamanzi kunye nefuthe lokutyeba kwe-cellulose ether kuxhomekeke kakhulu kwi-viscosity kunye nomthamo we-cellulose ether ngokwayo eyongezwe kwi-slurry yesamente.
5. Ixabiso le-pH le-cellulose ether
Ubuninzi beemveliso ze-cellulose ether buya kuncipha kancinci emva kokuba zigcinwe kubushushu obuphezulu okanye ixesha elide, ingakumbi kwiimveliso ezine-viscosity ephezulu, ngoko ke kuyimfuneko ukunciphisa i-pH. Ngokubanzi, kuyacetyiswa ukulawula uluhlu lwe-pH ye-cellulose ether ukuya kwi-5-9.
6. Ukuhanjiswa kokukhanya kwe-cellulose ether
Ukuhanjiswa kokukhanya kwe-cellulose ether kuchaphazela ngokuthe ngqo isiphumo sayo sokusebenza kwizixhobo zokwakha. Izinto eziphambili ezichaphazela ukuhanjiswa kokukhanya kwe-cellulose ether zezi: (1) umgangatho wezinto ezikrwada; (2) isiphumo se-alkalization; (3) umlinganiselo wenkqubo; (4) umlinganiselo we-solvent; (5) isiphumo sokungaguquguquki.
Ngokwesiphumo sokusetyenziswa, ukuhanjiswa kokukhanya kwe-cellulose ether akufuneki kube ngaphantsi kwe-80%.
7. Ubushushu bejeli ye-cellulose ether
I-Cellulose ether isetyenziswa kakhulu njenge-viscosifier, i-plasticizer kunye ne-arhente yokugcina amanzi kwiimveliso zesamente, ngoko ke i-viscosifier kunye nobushushu bejeli zizinto ezibalulekileyo zokulinganisa umgangatho we-cellulose ether. Ubushushu bejeli busetyenziselwa ukumisela uhlobo lwe-cellulose ether, oluhambelana nomgangatho wokutshintshwa kwe-cellulose ether. Ukongeza, ityuwa kunye nokungcola kunokuchaphazela ubushushu bejeli. Xa ubushushu besisombululo bunyuka, i-cellulose polymer ilahlekelwa ngamanzi kancinci kancinci, kwaye i-viscosity yesisombululo iyancipha. Xa i-gel point ifikelelwa, i-polymer iyaphelelwa ngamanzi ngokupheleleyo kwaye yenze ijeli. Ke ngoko, kwiimveliso zesamente, ubushushu buhlala bulawulwa ngaphantsi kobushushu bokuqala bejeli. Phantsi kwale meko, okukhona ubushushu buphantsi, kokukhona i-viscosity iphakama, kwaye kokukhona isiphumo sokutyeba kunye nokugcinwa kwamanzi sicacile.
Ixesha lokuthumela: Epreli-28-2023