I-viscosity ye-cellulose ether ichaphazela njani ukusebenza kwe-gypsum mortar?

I-cellulose ethers isetyenziswa ngokuqhelekileyo njengezongezo kwizinto zokwakha ngenxa yokukwazi ukuguqula iimpawu ze-rheological kunye ne-mechanical of the material.Ngokukodwa, zihlala zifakwe kwi-gypsum mortars ukuphucula i-fluidity, ukusebenza kunye nokubambelela.Nangona kunjalo, umphumo othile we-cellulose ether viscosity ekusebenzeni kwe-gypsum mortar ayikacaciswa.Eli phepha liphonononga iincwadi ezikhoyo kwesi sihloko kwaye lixubusha impembelelo enokubakho ye-cellulose ether viscosity kwiipropati ze-gypsum mortars.

I-cellulose ethers ziipolymers ezinyibilikayo zamanzi ezivela kwi-cellulose, i-polymer yendalo efumaneka kwiindonga zeeseli zezityalo.Ngokuqhelekileyo zisetyenziswa njengezinto ezityebileyo, izibophelelo kunye nezizinzisi kwiintlobo ngeentlobo zezicelo zamashishini ezibandakanya ukutya, izithambiso, amayeza kunye nezinto zokwakha.Ekwakhiweni, zivame ukufakwa kwiidaka ukuphucula ukusebenza, ukubambelela kunye nokuqina.

I-Gypsum yiminerali yendalo eyenziwe nge-calcium sulfate dihydrate.Isetyenziswa ngokubanzi ekwakhiweni kweempawu zayo ezichasene nomlilo kunye nesandi kunye neempawu zokufakelwa kwe-thermal.Udaka lweGypsum luqhele ukusetyenziswa njenge-primer yeendonga ze-stucco kunye neesilingi, kunye nomsebenzi wokugqiba wokwakhiwa kwe-drywall.

Xa i-cellulose ether yongezwa kwi-gypsum mortar, inokutshintsha iimpawu ze-rheological zomxube.I-Rheology kuphononongo lokuguqulwa kunye nokuhamba kwezinto eziphantsi koxinzelelo.Ukuziphatha okuhambayo kwe-gypsum mortar kunokubonakaliswa yi-viscosity yayo, eyona milinganiselo yokuchasana kwayo ukuhamba.I-viscosity yomdaka iphenjelelwa zizinto ezininzi, kubandakanywa uhlobo kunye noxinzelelo lwe-cellulose ether, ubungakanani beqhekeza kunye nokusabalalisa i-gypsum, kunye nomlinganiselo wamanzi kwi-samente.

I-viscosity ephezulu ye-cellulose ethers ithande ukuba nempembelelo enkulu kwindlela yokuziphatha kwe-gypsum mortar kuneethers ezisezantsi ze-viscosity.Ngokomzekelo, uphando lubonise ukuba ukongeza i-high-viscosity hydroxypropylmethylcellulose (HPMC) kwi-gypsum mortar inokunyusa i-viscosity yomxube kunye nokuphucula ukusebenza kwayo, ngelixa i-HPMC ephantsi-i-viscosity inefuthe elincinci kwindlela yokuziphatha yomdaka.Oku kubonisa ukuba ukusebenza kwe-gypsum mortar kuxhomekeke kuhlobo oluthile kunye ne-viscosity ye-cellulose ether esetyenzisiweyo.

Enye yeenzuzo eziphambili zokubandakanya i-cellulose ether kwi-gypsum mortar kukuba iphucula ukusebenza komxube.Ukuqhubekeka kubhekisa kukulula ekunokuxutywa, kubekwe kunye nokudityaniswa kwesixhobo.I-gypsum mortars esebenzayo kakhulu ingasetyenziswa kwiindawo ngokulula, okukhokelela ekugqityweni okugudileyo, okufanayo.I-cellulose ethers inokuphucula ukusebenza komxube ngokunciphisa iziganeko zokwahlula kunye nokuphuma kwegazi, okwenzekayo xa amaqhekeza anzima kumdaka ahlala ngaphandle komxube ngexesha lokwakha.

Ukongeza kokuchaphazela ukusebenza, i-viscosity ye-cellulose ether iya kuchaphazela nokusebenza kwe-adhesive ye-gypsum mortar.I-Adhesion bubuchule bezinto ezidibanisa enye indawo.Ubukho be-cellulose ether kwi-gypsum mortar inokuphucula ukubambelela kwayo kwiindawo ngokunyusa indawo yokudibanisa kunye nokunciphisa ubuninzi bomoya obanjwe phakathi kweendawo.I-high-viscosity cellulose ethers zisebenza ngakumbi kuneethers ze-viscosity ephantsi ekuphuculeni ukunamathela kuba zenza umanyano olomeleleyo phakathi kwemiphezulu.

Enye ipropati ebalulekileyo ye-gypsum mortar yithuba layo lokumisela, ixesha elithathayo ukuba umxube uqine kwaye uphuhlise amandla.Ixesha lokumisela le-gypsum mortar lingatshintshwa ngokufaka i-cellulose ether, enokuchaphazela inkqubo ye-hydration ye-particle gypsum.I-Hydration yindlela yokusabela kweekhemikhali eyenzeka xa amanzi efakwe kwi-gypsum, okukhokelela ekubunjweni kwe-calcium sulfate dihydrate crystals.

I-viscosity ye-cellulose ether inempembelelo ebalulekileyo ekusebenzeni kwe-gypsum mortar.I-viscosity cellulose ethers ephezulu inokuphucula ukuqhutyelwa phambili, iimpawu zokubambelela kunye nexesha lokubeka umxube, ngelixa i-ethers ye-viscosity ephantsi inokuba nefuthe elincinci kwezi zakhiwo.Impembelelo ethile ye-cellulose ether viscosity ixhomekeke kwizinto ezininzi, kubandakanywa uhlobo kunye nokugxilwa kwe-ether, ubungakanani be-particle kunye nokusabalalisa kwe-gypsum, kunye nomlinganiselo wamanzi kwi-samente.Uphando olongezelelweyo lufunekayo ukuqonda ngokupheleleyo ubudlelwane phakathi kwe-cellulose ether viscosity kunye nezakhiwo ze-gypsum mortar, kodwa uncwadi olukhoyo lubonisa ukuba le nto ibalulekileyo ekufuneka iqwalaselwe xa kusenziwa izinto zokwakha.