I-Hydroxypropyl Methyl Cellulose (i-HPMC) yimveliso yeekhemikhali ezininzi ezisetyenziswa kakhulu kwizinto zokwakha, ngakumbi kwimveliso kunye nokusetyenziswa kwe-putty powder. I-putty powder yinto esetyenziselwa ukwakha unyango olungaphezulu. Umsebenzi wayo oyintloko kukugcwalisa ukungalingani kwendawo yodonga kunye nokubonelela ngesiseko esiluqilima kunye nesifanayo, esibonelela ngesiseko esihle seenkqubo zokugquma okanye zokuhombisa ezilandelayo.
Iimpawu eziphambili zeHPMC
I-HPMC yi-ether ye-cellulose engeyo-ionic efunyenwe ngokuguqula iikhemikhali zeselulosi. Inokunyibilika kakuhle kwamanzi kwaye inokunyibilika ngokukhawuleza emanzini abandayo ukwenza isisombululo se-colloidal esicacileyo okanye esiguquguqukayo. I-HPMC iqulethe i-hydroxyl kunye namaqela e-methyl kwisakhiwo sayo se-molecular, ngoko ke inokuqina okulungileyo, ukumiswa, ukusabalalisa, i-emulsification, i-bonding, ukwakheka kwefilimu, kunye nemisebenzi yokukhusela i-colloid. Ukongeza, ikwanokugcinwa kwamanzi okugqwesileyo kunye nokuzinza, kwaye ayichaphazeli lula ubushushu kunye notshintsho lwe-pH.
Indima ye-HPMC kwi-putty
I-Thickener kunye ne-agent yokumisa: I-HPMC inokunyusa i-viscosity ye-putty slurry, yenza kube lula ukuyifaka kunye nokumila ngexesha lokwakha, ngelixa ikhusela ukuchithwa kwee-pigments kunye nezihlungi ngexesha lokugcina kunye nokwakhiwa.
I-ejenti yokugcina amanzi: I-HPMC ineempawu ezintle zokugcina amanzi, ezinokunciphisa ukulahlekelwa kwamanzi ngexesha lokwakha, ukwandisa ixesha elivulekileyo le-putty, kwaye uqinisekise ukufana kunye nokuzinza kwe-putty ngexesha lokumisa. Oku kunokuthintela ngokufanelekileyo iintanda ze-shrinkage kwi-putty layer kunye nokuphucula umgangatho wokwakha.
Isiphumo sokuthambisa: I-HPMC inokuphucula i-lubricity ye-putty, iyenze ibe lula ngexesha lokwakha, ukunciphisa ubunzima bokwakha, ukunciphisa umsebenzi wabaqhubi, kunye nokuphucula ukusebenza kakuhle.
Isibophelelo: I-HPMC inokwandisa amandla okudibanisa phakathi kwe-putty kunye ne-substrate, yenza umaleko we-putty uncanyathiselwe ngokuqinileyo kumphezulu wodonga kwaye uthintele ukuba ungawi.
Ukuphucula ukusebenza kolwakhiwo: I-HPMC inokuphucula ukusebenza kwe-putty, ikwenze kube lula ukusasazeka kunye nokugudiswa xa ufaka isicelo kunye nokukhuhla, ukunciphisa iimpawu zokwakha, kunye nokuqinisekisa ukuguda kunye nobuhle bodonga.
Uyisebenzisa njani iHPMC
Ngethuba lenkqubo yokuvelisa i-putty, i-HPMC idla ngokudibaniswa kumxube owomileyo ngendlela yomgubo. Isixa esongezelelweyo siyahluka ngokuxhomekeke kuhlobo lwe-putty kunye neemfuno zokusebenza. Ngokuqhelekileyo, isixa se-HPMC silawulwa malunga ne-0.2% ~ 0.5% yexabiso lilonke le-putty. Ukuze kuqinisekiswe ukuba i-HPMC inokudlala indima yayo ngokupheleleyo, ngokuqhelekileyo kuyimfuneko yokongeza ngokucothayo ngexesha lenkqubo yokuxuba kwaye uyigcine ixutywe ngokulinganayo.
Izinto eziluncedo kunye nezingeloncedo ze-HPMC kwi-putty
Izinto eziluncedo:
Ukhuseleko olulungileyo lokusingqongileyo: I-HPMC ayinabungozi kwaye ayinabungozi, ayiqulathanga isinyithi esinzima kunye nezinto eziyingozi, iyahlangabezana neemfuno zokhuseleko lokusingqongileyo, kwaye inobuhlobo kubasebenzi bokwakha kunye nokusingqongileyo.
Ukusebenza okuzinzile: I-HPMC inamandla okuguquguquka kweemeko zokusingqongileyo ezifana nobushushu kunye ne-pH, ukusebenza okuzinzileyo, kwaye akulula ukuwohloka.
Ukusebenziseka okubanzi: I-HPMC ifanelekile kwii-substrates ezahlukeneyo kunye neenkqubo zokugquma, kwaye zinokuhlangabezana neemfuno ezahlukeneyo zokwakha.
Izinto ezingeloncedo:
Iindleko eziphezulu: Xa kuthelekiswa nezinye izinto zemveli, i-HPMC inexabiso eliphezulu, elinokunyusa ixabiso lemveliso yeemveliso zeputty.
Ubuthathaka kumgangatho wamanzi: I-HPMC ineemfuno eziphezulu zomgangatho wamanzi, kwaye umahluko kumgangatho wamanzi unokuchaphazela ukunyibilika kunye nokusebenza kwawo.
Ukusetyenziswa kwe-HPMC kwi-putty kunenzuzo ebalulekileyo. Ayiphuculi nje kuphela ukusebenza kokwakhiwa kwe-putty, kodwa iphinda iphucule iimpawu zomzimba kunye neekhemikhali ze-putty. Nangona ixabiso layo liphezulu ngokwentelekiso, uphuculo lomgangatho kunye nolwakhiwo olulula oluzisayo luyenza isetyenziswe ngokubanzi kwiiprojekthi zokwakha ezikumgangatho ophezulu. Ngokuqhubela phambili okuqhubekayo kobuchwepheshe bezinto zokwakha, amathuba okusetyenziswa kwe-HPMC kwi-putty kunye nezinye izinto zokwakha ziya kuba banzi.
Ixesha lokuposa: Aug-09-2024