Ukugcinwa kwamanzi kwe-hydroxypropyl methylcellulose ether
Ukugcinwa kwamanzi odaka lomxube owomileyo kubhekiselele kubuchule bodaka ukubamba kunye nokutshixa amanzi.Okukhona iphezulu i-viscosity ye-hydroxypropyl methylcellulose ether, kokukhona kungcono ukugcinwa kwamanzi.Ngenxa yokuba isakhiwo se-cellulose sine-hydroxyl kunye neebhondi ze-ether, ii-athomu ze-oksijini kwi-hydroxyl kunye namaqela e-ether bond adibanisa ne-molecule zamanzi ukwenza iibhondi ze-hydrogen, ukuze amanzi akhululekile abe ngamanzi abophekileyo kwaye adibanise amanzi, ngaloo ndlela edlala indima yokugcina amanzi.
Ukunyibilika kweHydroxypropyl Methyl Cellulose Etere
1. I-ether ye-particle cellulose e-coarse kulula ukusabalalisa emanzini ngaphandle kwe-agglomeration, kodwa izinga lokuchithwa licotha kakhulu.I-ether ye-cellulose engaphantsi kwe-60 mesh inyibilika emanzini malunga nemizuzu engama-60.
2. I-fine particle cellulose ether kulula ukusabalalisa emanzini ngaphandle kwe-agglomeration, kwaye izinga lokuchithwa liphakathi.I-ether ye-cellulose ngaphezu kwe-80 mesh inyibilika emanzini malunga nemizuzu emi-3.
3. I-ultra-fine particle cellulose ether isasazeka ngokukhawuleza emanzini, inyibilika ngokukhawuleza, kwaye yenza i-viscosity ngokukhawuleza.I-ether ye-cellulose ngaphezu kwe-120 mesh inyibilika emanzini malunga ne-10-30 imizuzwana.
Ukugqwesa kwamasuntswana e-hydroxypropyl methylcellulose ether, kungcono ukugcinwa kwamanzi.Umphezulu we-coarse-grained cellulose ether unyibilika ngokukhawuleza emva kokudibana namanzi kwaye wenze i-gel phenomenon.I-glue igubungela izinto zokuthintela iimolekyuli zamanzi ukuba zingaqhubeki nokungena.Ngamanye amaxesha ayinakuchithwa ngokulinganayo kwaye inyibilikiswe nasemva kwexesha elide, ukwenza isisombululo esinamafu okanye i-agglomeration.Iinqununu ezintle zichithakala kwaye zichithe ngokukhawuleza emva kokudibanisa namanzi ukwenza i-viscosity efanayo.
Ixabiso le-PH le-hydroxypropyl methylcellulose ether (ukubuyisela umva okanye umphumo wamandla kwangethuba)
Ixabiso le-pH labenzi be-ether ye-hydroxypropyl methylcellulose ekhaya nakwamanye amazwe ilawulwa ngokusisiseko malunga ne-7, ekwimeko ye-acidic.Ngenxa yokuba kusekho inani elikhulu lezakhiwo zendandatho ye-anhydroglucose kwisakhiwo se-molecular ye-cellulose ether, i-anhydroglucose ring liqela eliphambili elibangela ukuchithwa kwe-cement.Iringi ye-anhydroglucose inokwenza i-calcium ion kwisisombululo se-cement hydration ivelise i-sugar-calcium i-molecular compounds, ukunciphisa i-calcium ion concentration ngexesha lokungeniswa kwe-cement hydration, ithintele ukwakheka kunye nemvula ye-calcium hydroxide kunye neekristale zetyuwa ye-calcium, kunye nokulibazisa ukugeleza kwamanzi. isamente.inkqubo.Ukuba ixabiso le-PH likwimeko yealkaline, udaka luya kuvela kwimeko yamandla-kwangoko.Ngoku uninzi lweefektri zisebenzisa i-sodium carbonate ukulungisa ixabiso le-pH.I-Sodium carbonate luhlobo lwe-agent ekhawulezayo yokubeka.I-carbonate ye-sodium iphucula ukusebenza kwendawo yeengqungquthela zesamente, ikhuthaza ukubambisana phakathi kweengqungquthela, kwaye iphucula ngakumbi i-viscosity yodaka.Ngelo xesha, i-sodium carbonate idibanisa ngokukhawuleza kunye ne-calcium ions kwi-mortar ukukhuthaza ukubunjwa kwe-ettringite, kwaye i-samente idibanisa ngokukhawuleza.Ngoko ke, ixabiso le-pH kufuneka lihlengahlengiswe ngokuhambelana nabathengi abahlukeneyo kwinkqubo yokuvelisa ngokwenene.
IiPropati zokuQinisekisa komoya zeHydroxypropyl Methyl Cellulose Ether
Impembelelo yokungenisa umoya ye-hydroxypropyl methylcellulose ether ikakhulu kungenxa yokuba i-cellulose ether ikwaluhlobo lwe-surfactant.Umsebenzi we-interfacial we-cellulose ether wenziwa ikakhulu kwi-gas-liquid-solid interface.Okokuqala, ukuqaliswa kwamaqamza omoya, kulandelwa yi-dispersion kunye ne-Wetting effect.I-Cellulose ether iqulethe amaqela e-alkyl, anciphisa ngokubonakalayo ukuxinana komphezulu kunye namandla okudibanisa ubuso bamanzi, okwenza kube lula ukuvelisa amaqamza amancinci amaninzi avaliweyo ngexesha lenkqubo yokuvuselela isisombululo samanzi.
Iipropati zeGel zeHydroxypropyl Methyl Cellulose Ether
Emva kokuba i-hydroxypropyl methylcellulose ether ichithwe kumdaka, i-methoxyl kunye namaqela e-hydroxypropyl kwikhonkco le-molecular iya kusabela kunye ne-calcium ion kunye ne-aluminium ion kwi-slurry ukwenza i-gel viscous kwaye igcwalise i-cement mortar void., ukuphucula ukunyanzeliswa komdaka, udlale indima yokuzaliswa okuguquguqukayo kunye nokuqiniswa.Nangona kunjalo, xa i-matrix edibeneyo iphantsi koxinzelelo, i-polymer ayikwazi ukudlala indima exhasayo eqinile, ngoko ke amandla kunye nomlinganiselo wokusonga we-mortar uyancipha.
Ukwenziwa kweFilimu yeHydroxypropyl Methyl Cellulose Ether
Emva kokuba i-hydroxypropyl methyl cellulose ether yongezwa kwi-hydration, ifilimu encinci yefilimu ye-latex yenziwa phakathi kweengqungquthela zesamente.Le filimu inesiphumo sokutywinwa kwaye iphucula ukomisa komphezulu wodaka.Ngenxa yokugcinwa kakuhle kwamanzi kwe-hydroxypropyl methylcellulose ether, iimolekyuli zamanzi ezaneleyo zigcinwa ngaphakathi kodaka, ngaloo ndlela ziqinisekisa ukuqina kwe-samente kunye nophuhliso olupheleleyo lwamandla, ukuphucula amandla okudibanisa udaka, kwaye ngexesha elifanayo iphucula ukudityaniswa kodaka, yenza ukuba udaka lube neplastiki elungileyo kunye nokuguquguquka, kwaye kunciphisa ukuncipha kunye nokuguqulwa kodaka.
Ixesha lokuposa: May-23-2023