Cellulose ether, inozivikanwawo semethylcellulose/hydroxypropylmethylcellulose (HPMC/MHEC), ipolmer inonyungudika nemvura inoshandiswa zvakanyanya mukuvaka zvikumbiro.Iine zvinhu zvakati wandei zvakakosha zvinoita kuti ive yakakosha mbichana pakugadzira dhaka nesamende.Yakasarudzika zvimiro zve cellulose ethers zvinosanganisira kuchengetedza mvura, kunamatira kwakanaka, uye kugona kuita semakobvu.
Cellulose ethers inowedzera kusimba kwechisungo chedhaka nekupa kuchinjika uye elasticity kumusanganiswa wedhaka.Somugumisiro, zvinhu zvinova nyore kushanda nazvo uye chigadzirwa chekupedzisira chinowedzera kusimba.Ichi chinyorwa chichaongorora kuti cellulose ethers (HPMC/MHEC) inokanganisa sei kusimba kwechisungo chematope.
Mhedzisiro ye cellulose ether padhaka
Cellulose ethers zvinhu zvakakosha mumidziyo yakawanda yekuvaka, kusanganisira dhaka nesimende.Kana yakashandiswa mudhaka, cellulose ether inoshanda sebhainda, inobatsira kusunga musanganiswa pamwe chete uye kuwedzera kushanda kwechinhu chacho.Mvura inochengetedza mvura ye cellulose ethers inopa mamiriro akanaka ekurapa kwakakodzera kwematope nemasimende, nepo kunamatira kwakanaka kunobatsira kuumba chisungo chakasimba pakati pezvikamu zvakasiyana.
Dhaka chinhu chakakosha chekuvakisa chinoshandiswa kunama zvidhinha kana mabhuroko pamwechete.Unhu hwechisungo hunokanganisa kusimba uye kusimba kwechimiro.Pamusoro pezvo, kusimba kwechisungo chinhu chakakosha kuona kuti chivakwa chinogona kumira nemamiriro ese aanoiswa.Kusimba kwechisungo chedhaka kwakakosha zvikuru nokuti chimiro chiri pasi pekunetseka kupi zvako kana mutoro unobva zvakanyanya pahutano hwechisungo chedhaka.Kana simba rezvisungo risina kukwana, chimiro chinowanzosangana nezvinetso zvakakura zvakadai sekuputika kana kukundikana, zvichikonzera njodzi dzisingatarisirwi, kuwedzerwa mari yekuchengetedza uye njodzi dzekuchengetedza.
Mechanism yekuita kwe cellulose ethers
Cellulose ether i polymer inonyungudika mumvura inoshandiswa kuvandudza zvimiro zvedhaka.Maitiro ekuita kwe cellulose ether mudhaka ndiko kupararira kwezvinowedzera, izvo zvinonyanya kukodzera mapolymer anonyungudika nemvura, uye inosimudzira kusimba kwemidziyo nekudzikisa kusimba kwepasi kwezvinhu.Izvi zvinoreva kuti kana cellulose ether yawedzerwa mudhaka, inoparadzirwa zvakaenzana mukati memusanganiswa, kudzivirira kuumbwa kwemapundu anogona kukonzera kushaya simba mubhandi redhaka.
Cellulose ether inoshandawo senge inokora mudhaka, ichigadzira musanganiswa wakawanda we viscous unoibvumira kuomerera zvakanyanya kune zvidhinha kana kuvhara iyo iri kushandiswa.Mukuwedzera, inovandudza huwandu hwemhepo uye inowedzera kushanda kwedhaka kuti iwedzere kushanda uye kuwedzera nyore kwekushandisa.Iyo cellulose ethers inowedzerwa mudhaka inoderedza mwero wekuti mvura yemusanganiswa inoputika, zvichiita kuti dhaka rive nyore kuisa uye kubatanidza zvikamu pamwechete zvakasimba.
Zvakanakira zve cellulose ether padhaka
Kuwedzerwa kwe cellulose ethers (HPMC/MHEC) kumadhaka kune akawanda mabhenefiti anosanganisira akavandudzwa bond simba.Kusimba kwechisungo chepamusoro kunowedzera kusimba kwenguva refu kwechimiro, kudzivisa kugadzirisa kunodhura.
Cellulose ethers inopawo kushanda kuri nani kudhaka, zvichiita kuti zvive nyore kuvaka uye kuderedza nguva inodiwa pakushandisa zvakanyanya kushanda.Uku kushanda kwakagadziridzwa kunobatsira kuwedzera kukurumidza uye kushanda nesimba, nekudaro kuwedzera kubereka muindasitiri yekuvaka.
Cellulose ether inogonawo kuvandudza mashandiro ekuchengetedza mvura kwedhaka uye kuve nechokwadi chenguva yakakwana yekupora kwakadzikama.Izvi zvinowedzera kusungirirwa kwezvinhu zvinoshandiswa pakuvaka, zvichiita kuti pave nechimiro chakasimba.
Cellulose ether additive mortars zviri nyore kuchenesa, uye kubvisa zvinhu zvakanyanyisa kubva muchivako chakapedzwa hakusi kwakaoma.Kuwedzera kunamatira kwedhaka kune chivakwa chekuvaka kunoreva kushomeka kwemarara nekuti musanganiswa hauzopunzika kana kusunungura kubva pachimiro panguva yekuenzanisa.
mukupedzisa
Kuwedzerwa kwe cellulose ethers (HPMC/MHEC) kumadhaka kunoita basa rakakosha pakuvandudza kusimba kwechisungo chematope ekushandisa kuvaka.Cellulose ethers inopa kuchengetedza kwemvura, inovandudza kushanda kwedhaka, uye inobvumira kunonoka kwehuwandu hwekubuda kwemhepo kuitira kuti zvinhu zvibatane zviri nani.Kuwedzerwa kwesimba rebhondi kunovimbisa kusimba kwechimiro, kuderedza zvisingatarisirwi zvekuchengetedza nyaya, kuvandudza kuchengetedza uye kuderedza mari yekuvaka.Tichifunga nezvese zvakanakira izvi, zviri pachena kuti kushandiswa kwema cellulose ethers kunofanirwa kugamuchirwa zvakanyanya muindasitiri yekuvaka kune zvemhando yepamusoro uye yakasimba mapurojekiti ekuvaka.
Nguva yekutumira: Sep-01-2023