Iyintoni i-viscosity efanelekileyo ye-hydroxypropyl methylcellulose (HPMC)?
Umgubo wePutty ngokubanzi yi-100,000 yuan, kwaye iimfuno ze-mortar ziphezulu, kwaye i-150,000 yuan iyafuneka ukuze kube lula ukuyisebenzisa. Ngaphezu koko, owona msebenzi ubalulekileyo we-HPMC kukugcina amanzi, kulandele ukuqina. Kwi-putty powder, ukuba nje ukugcinwa kwamanzi kulungile kwaye i-viscosity iphantsi (70,000-80,000), kunokwenzeka. Kakade ke, xa i-viscosity iphezulu, kokukhona i-viscosity iphezulu, kokukhona i-viscosity ingaphezulu kwe-100,000, i-viscosity iya kuchaphazela ukugcinwa kwamanzi. Akusekho kakhulu.
Ziziphi iindlela zokunyibilikisa i-hydroxypropyl methylcellulose (HPMC)?
(1) Ubumhlophe: Nangona iBaidu ingenakukwazi ukumisela ukuba kulula na ukuyisebenzisa i-HPMC, kwaye ukuba kongezwa ii-agents zokwenza mhlophe ngexesha lenkqubo yemveliso, umgangatho wayo uya kuchaphazeleka. Nangona kunjalo, uninzi lweemveliso ezilungileyo zimhlophe kakuhle.
(2) Ubunzima: Ubunzima be-HPMC bune-mesh engama-80 kunye ne-100 mesh, kwaye i-120 mesh incinci. Uninzi lwe-HPMC oluveliswa eHebei lune-mesh engama-80. Okukhona ubuncwane buncinci, ngokubanzi, kokukhona bungcono.
(3) Ukuhanjiswa kokukhanya: faka i-hydroxypropyl methylcellulose (HPMC) emanzini ukuze wenze i-colloid ecacileyo, kwaye ujonge ukuhanjiswa kokukhanya kwayo. Okukhona ukuhanjiswa kokukhanya kukhulu, kokukhona kungcono, okubonisa ukuba akukho zinto zinganyibilikiyo kangako kuyo. . Ukuvuleka kwee-reactors ezithe nkqo ngokubanzi kulungile, kwaye oko kwee-reactors ezithe nkqo kubi, kodwa akuthethi ukuba umgangatho wee-reactors ezithe nkqo ungcono kunowee-reactors ezithe nkqo, kwaye umgangatho wemveliso umiselwa zizinto ezininzi. (4) Ubunzima obuthile: Okukhona ubunzima obuthile bukhulu, kokukhona ubunzima bungcono. Ubunzulu bukhulu, ngokubanzi kuba umxholo weqela le-hydroxypropyl kuyo uphezulu, kwaye umxholo weqela le-hydroxypropyl uphezulu, ukugcinwa kwamanzi kungcono.
Yintoni umsebenzi ophambili wokusetyenziswa kwe-HPMC kwi-putty powder, kwaye ngaba kwenzeka ngokweekhemikhali?
Kwi-putty powder, i-HPMC idlala indima ezintathu zokwandisa ukuqina, ukugcina amanzi kunye nokwakha.
Ukuqina: I-Cellulose ingenziwa ibe nkulu ukuze ixhonywe kwaye igcine isisombululo sihambelana phezulu nasezantsi, kwaye singavumeli ukugoba.
Ukugcinwa kwamanzi: yenza umgubo we-putty wome kancinci, kwaye uncede i-ash calcium ukuba isabele phantsi kwentshukumo yamanzi.
Ulwakhiwo: I-Cellulose inefuthe lokuthambisa, elinokwenza umgubo we-putty ube nolwakhiwo oluhle. I-HPMC ayithathi nxaxheba kuyo nayiphi na i-chemical reactions, kodwa idlala indima yokuncedisa kuphela. Ukongeza amanzi kumgubo we-putty uze uwubeke eludongeni yindlela ye-chemical reaction, kuba izinto ezintsha ziyavela. Ukuba ususa umgubo we-putty eludongeni, uwugaye ube ngumgubo, uze uwusebenzise kwakhona, awuyi kusebenza kuba izinto ezintsha (i-calcium carbonate) zenziwe.
Izinto eziphambili ze-ash calcium powder zezi: umxube we-Ca(OH)2, i-CaO kunye ne-CaCO3 encinci, i-CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O i-ash calcium emanzini nasemoyeni Phantsi kwesenzo se-CO2, i-calcium carbonate iveliswa, ngelixa i-HPMC igcina amanzi kuphela, inceda ukusabela ngcono kwe-ash calcium, kwaye ayithathi nxaxheba kuyo nayiphi na impendulo ngokwayo.
Ubudlelwane phakathi kwe-viscosity kunye nobushushu be-HPMC, yintoni ekufuneka iqwalaselwe xa isetyenziswa?
Ubunzima be-HPMC buhambelana ngokuphambeneyo nobushushu, oko kukuthi, ubunzima buyanda njengoko ubushushu buncipha. Ubunzima bemveliso esihlala sibhekisela kuyo bubhekisa kwisiphumo sovavanyo lwesisombululo sayo samanzi esiyi-2% kubushushu obuyi-20 degrees Celsius.
Kwimisebenzi ebonakalayo, kufuneka kuqatshelwe ukuba kwiindawo ezinomahluko omkhulu kubushushu phakathi kwehlobo nobusika, kucetyiswa ukusebenzisa i-viscosity ephantsi ebusika, nto leyo elungele ukwakhiwa. Ngaphandle koko, xa ubushushu buphantsi, i-viscosity ye-cellulose iya kwanda, kwaye imvakalelo yesandla iya kuba nzima xa ikrwelwa.
I-viscosity ephakathi: 75000-100000 isetyenziselwa ikakhulu i-putty
Isizathu: ukugcina amanzi kakuhle
I-viscosity ephezulu: 150000-200000 isetyenziswa kakhulu kwi-polystyrene particle insulation mortar kunye ne-vitrified microbead insulation mortar.
Isizathu: i-viscosity ephezulu, i-mortar ayilula ukuyiwa, iyawa, nto leyo ephucula ulwakhiwo.
Ixesha lokuthumela: Meyi-18-2023