Ukugcinwa kwamanzi kwe-hydroxypropyl methylcellulose ether
Ukugcinwa kwamanzi komxube owomileyo kubhekisa kubuchule bomxube wokubamba nokuvalela amanzi. Okukhona i-hydroxypropyl methylcellulose ether iphezulu, kokukhona ukugcinwa kwamanzi kuphezulu. Ngenxa yokuba isakhiwo se-cellulose sineebhondi ze-hydroxyl kunye ne-ether, ii-athomu ze-oksijini kumaqela ebhondi ye-hydroxyl kunye ne-ether zidibana neemolekyuli zamanzi ukwenza iibhondi ze-hydrogen, ukuze amanzi akhululekileyo abe ngamanzi abotshelelweyo aze abambe amanzi, ngaloo ndlela edlala indima ekugcinweni kwamanzi.
Ukunyibilika kwe-Hydroxypropyl Methyl Cellulose Ether
1. I-ether ye-cellulose ether ecoarse particle kulula ukuyisasaza emanzini ngaphandle kokudibana, kodwa izinga lokunyibilika licotha kakhulu. I-ether ye-cellulose engaphantsi kwe-60 mesh inyibilika emanzini kangangemizuzu engama-60.
2. I-ether ye-cellulose encinci kulula ukuyisasaza emanzini ngaphandle kokudibana, kwaye izinga lokunyibilika liphakathi. I-ether ye-cellulose engaphezulu kwe-80 mesh inyibilika emanzini kangangemizuzu emi-3.
3. I-ether ye-cellulose ethambileyo kakhulu isasazeka ngokukhawuleza emanzini, inyibilike ngokukhawuleza, kwaye yenze i-viscosity ngokukhawuleza. I-ether ye-cellulose engaphezulu kwe-120 mesh inyibilika emanzini kangangemizuzwana eli-10-30.
Okukhona amasuntswana e-hydroxypropyl methylcellulose ether ecolekileyo, kokukhona ukugcinwa kwamanzi kuphucuka. Umphezulu we-coarse-grained cellulose ether uyanyibilika kwangoko emva kokudibana namanzi kwaye wenze i-gel phenomenon. Iglue isonga izinto ukuze kuthintelwe ukuba iimolekyuli zamanzi zingaqhubeki zingena. Ngamanye amaxesha ayinakusasazwa ngokulinganayo kwaye ichithwe nasemva kokuxutywa ixesha elide, yenze isisombululo esinamafu okanye i-agglomeration. Amasuntswana amancinci ayasasazeka kwaye anyibilike kwangoko emva kokudibana namanzi ukuze enze i-viscosity efanayo.
Ixabiso le-PH le-hydroxypropyl methylcellulose ether (isiphumo sokulibaziseka okanye amandla okuqala)
Ixabiso le-pH labavelisi be-hydroxypropyl methylcellulose ether ekhaya nakwamanye amazwe lilawulwa ngokusisiseko malunga ne-7, ekwimeko ye-acidic. Ngenxa yokuba kusekho inani elikhulu lezakhiwo ze-anhydroglucose ring kwisakhiwo se-molecular se-cellulose ether, i-anhydroglucose ring yeyona qela liphambili elibangela ukulibaziseka kwesamente. I-anhydroglucose ring ingenza ii-calcium ions kwisisombululo se-samente hydration zivelise ii-molecule ze-sugar-calcium, zinciphise uxinzelelo lwe-calcium ion ngexesha lokungeniswa kwe-samente hydration, zithintele ukwakheka kunye nokuna kwe-calcium hydroxide kunye neekristale zetyuwa ye-calcium, kwaye zilibazise inkqubo ye-hydration yesamente. Ukuba ixabiso le-PH likwimeko ye-alkaline, i-mortar iya kuvela kwimeko yamandla okuqala. Ngoku uninzi lweefektri zisebenzisa i-sodium carbonate ukulungisa ixabiso le-pH. I-Sodium carbonate luhlobo lwe-agent ekhawulezayo yokuseta. I-Sodium carbonate iphucula ukusebenza komphezulu wee-particles zesamente, ikhuthaza ukudibana phakathi kwee-particles, kwaye iphucula ngakumbi i-viscosity ye-mortar. Kwangaxeshanye, i-sodium carbonate idibana ngokukhawuleza nee-calcium ions kwi-mortar ukukhuthaza ukwakheka kwe-ettringite, kwaye i-samente iyaqina ngokukhawuleza. Ngoko ke, ixabiso le-pH kufuneka lilungiswe ngokweemfuno zabathengi abahlukeneyo kwinkqubo yokuvelisa.
Iipropati zokungenisa umoya zeHydroxypropyl Methyl Cellulose Ether
Isiphumo sokungenisa umoya se-hydroxypropyl methylcellulose ether ngokuyintloko kungenxa yokuba i-cellulose ether nayo iluhlobo lwe-surfactant. Umsebenzi we-interfacial we-cellulose ether uvela kakhulu kwi-interface ye-gas-liquid-solid. Okokuqala, ukungeniswa kwamaqamza omoya, kulandele i-dispersion kunye ne-Wetting effect. I-Cellulose ether iqulethe amaqela e-alkyl, anciphisa kakhulu uxinzelelo lomphezulu kunye namandla e-interfacial wamanzi, okwenza kube lula ukuvelisa amaqamza amancinci amaninzi avaliweyo ngexesha lenkqubo yokuxuba isisombululo samanzi.
Iipropati zeGel zeHydroxypropyl Methyl Cellulose Ether
Emva kokuba i-hydroxypropyl methylcellulose ether inyibilikisiwe kwi-mortar, amaqela e-methoxyl kunye ne-hydroxypropyl kwi-molecular chain aya kusabela kunye ne-calcium ions kunye ne-aluminium ions kwi-slurry ukuze enze i-viscous gel kwaye azalise i-samente mortar void. , phucula ubuncinci be-mortar, idlale indima yokuzalisa okuguquguqukayo kunye nokuqinisa. Nangona kunjalo, xa i-composite matrix iphantsi koxinzelelo, i-polymer ayinakudlala indima yokuxhasa eqinileyo, ngoko ke amandla kunye nomlinganiselo wokugoba we-mortar uyancipha.
Ukwenziwa kweFilimu yeHydroxypropyl Methyl Cellulose Ether
Emva kokuba i-hydroxypropyl methyl cellulose ether yongezwe ukuze ifume, kwakheka umaleko omncinci wefilimu ye-latex phakathi kwamasuntswana esamente. Le filimu inefuthe lokutywina kwaye iphucula ukoma komphezulu we-mortar. Ngenxa yokugcina amanzi kakuhle kwe-hydroxypropyl methylcellulose ether, iimolekyuli zamanzi ezaneleyo zigcinwa ngaphakathi kwe-mortar, ngaloo ndlela kuqinisekiswa ukuqina kwe-mortar yesamente kunye nophuhliso olupheleleyo lwamandla, kuphucula amandla okubopha kwe-mortar, kwaye kwangaxeshanye iphucula ukuhlangana kwe-mortar, yenza i-mortar ibe ne-plasticity elungileyo kunye nokuguquguquka, kwaye inciphisa ukushwabana kunye nokuguqulwa kwe-mortar.
Ixesha lokuthumela: Meyi-23-2023