1. Yintoni eyona njongo iphambili ye-HPMC?
Le mveliso isetyenziswa njengesithambisi-mafutha, isinyibilikisi-mafutha, isihlanganisi-mafutha, isithambisi-mafutha, isithambisi-mafutha kunye nesiqinisi-mafutha kwishishini lempahla. Ikwasetyenziswa kakhulu kwi-synthetic resin, i-petrochemical, i-ceramic, iphepha, isikhumba, amayeza, ukutya kunye nemizi-mveliso yezithambiso.
2. Yintoni indimaI-HPMCkwi-putty powder yodonga lwangaphakathi?
I-HPMC inemisebenzi emithathu: umgubo we-putty wodonga lwangaphakathi, ukuqina, ukuvalela amanzi kunye nokwakhiwa. Uxinzelelo: I-Methyl cellulose inokuxutywa ngesisombululo esintantayo okanye samanzi ukugcina imisebenzi efanayo nehambelanayo kunye nokuthintela ukugeleza nokuxhoma. Amanzi okutshixa: Umgubo wodonga lwangaphakathi woma kancinci, kwaye i-calcium yelayimu eyongeziweyo ibonakala ekusebenziseni amanzi. Ulwakhiwo lobunjineli: I-Methyl cellulose inomsebenzi wokumanzisa, onokwenza umgubo we-putty wodonga lwangaphakathi ube nesakhiwo esihle sobunjineli. I-HPMC ayithathi nxaxheba ekutshintsheni zonke iikhemikhali, kodwa ithatha inxaxheba kuphela ekuzaliseni. Umgubo we-putty wodonga lwangaphakathi, eludongeni, lutshintsho lweekhemikhali, kuba kukho ukuguqulwa kweekhemikhali ezintsha, umgubo we-putty wodonga lwangaphakathi uyasuswa eludongeni, ucolwe, kwaye usetyenziswe kwakhona, Ngenxa yokuba kuye kwaveliswa into entsha yeekhemikhali (i-calcium bicarbonate). Izinto eziphambili ze-gray 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-gray calcium emanzini nasemoyeni Phantsi kwesenzo se-CO2, i-calcium carbonate iyenziwa, ngelixa i-HPMC igcina amanzi kuphela kwaye inceda impendulo engcono ye-gray calcium, kwaye ayithathi nxaxheba kuyo nayiphi na impendulo ngokwayo.
3. Indlela yokugweba umgangatho weI-HPMCngokulula nangokuqondakalayo?
(1) Ubumhlophe: Nangona ubumhlophe bungenakukwazi ukumisela ukuba kulula na ukusebenzisa i-HPMC, kwaye ukuba kongezwa isixhobo sokukhanyisa kwinkqubo yokuvelisa, kuya kuchaphazela umgangatho wayo. Nangona kunjalo, iimveliso ezilungileyo zinobumhlophe obuhle. (2) Ubumhlophe: Ubumhlophe be-HPMC ngokubanzi buyi-80 mesh kunye ne-100 mesh, i-120 mesh incinci, kwaye uninzi lwe-HPMC oluveliswa eHebei luyi-80 mesh. Okukhona ubumhlophe buncinci, kokukhona kungcono ngokubanzi. (3) Ukudluliselwa: Beka i-hydroxypropyl methylcellulose (HPMC) emanzini ukwenza i-colloid ecacileyo, kwaye ujonge ukudluliselwa kwayo. Okukhona ukudluliselwa kukhulu, kokukhona kungcono, okubonisa ukuba akukho zinto zinganyibilikiyo ngaphakathi. . Ukungena kwe-reactor ethe nkqo ngokubanzi kulungile, kwaye i-reactor ethe tye imbi, kodwa akuthethi ukuba umgangatho we-reactor ethe nkqo ungcono kunowe-reactor ethe tye. Umgangatho wemveliso usamiselwa zizinto ezininzi. (4) Ubungakanani: Okukhona umlinganiselo umkhulu, kokukhona ubunzima bungcono. Ubuninzi obuphezulu bubangelwa yinxalenye ephezulu ye-hydroxypropyl kuyo, kwaye okukhona iphezulu i-hydroxypropyl, kokukhona ukugcinwa kwamanzi kungcono.
4. Yintoni ekufuneka iqwalaselwe xa kusetyenziswa i-viscosity kunye nobushushu be-HPMC?
Ubunzima be-HPMC buhambelana ngokuphambeneyo nobushushu, oko kukuthi, ubunzima buyanda njengoko ubushushu buncipha. Sihlala sithi ubunzima bemveliso bubhekisela kwisiphumo sokuvavanya isisombululo sayo samanzi se-2% kubushushu obungama-20 degrees Celsius. Kwiindlela ezisebenzayo, kwiindawo ezinomahluko omkhulu kubushushu phakathi kwehlobo nobusika, kufuneka kuqatshelwe ukuba kucetyiswa ukusebenzisa ubunzima obuphantsi ebusika, obulungele ngakumbi ukwakhiwa. Ngaphandle koko, xa ubushushu buphantsi, ubunzima be-cellulose buya kwanda, kwaye isandla siya kuziva sinzima xa sikrwelwa.
5. Ziziphi iindlela zokunyibilikisa i-HPMC?
Indlela yokunyibilikisa amanzi ashushu: Ekubeni i-HPMC inganyibiliki emanzini ashushu, i-HPMC ingasasazeka ngokulinganayo emanzini ashushu kwinqanaba lokuqala, ize inyibilike ngokukhawuleza xa ipholile. Iindlela ezimbini eziqhelekileyo zichazwe ngolu hlobo lulandelayo: 1). Ubungakanani bamanzi ashushu kwaye ufudumale ukuya kuthi ga kwi-70°C. Yongeza kancinci kancinci i-hydroxypropyl methylcellulose ngokuxubha kancinci, qala i-HPMC intante phezu kwamanzi, uze emva koko wenze i-slurry kancinci, uze upholise i-slurry ngokuxubha. 2). Yongeza i-1/3 okanye i-2/3 yesixa samanzi esifunekayo kwisikhongozeli kwaye uyifudumale ukuya kuthi ga kwi-70°C. Ngokwendlela yoku-1), chitha i-HPMC ukulungiselela i-slurry yamanzi ashushu; uze wongeze isixa esiseleyo samanzi abandayo emanzini ashushu. Kwi-slurry, pholisa umxube emva kokuxubha. Indlela yokuxuba umgubo: xuba umgubo we-HPMC kunye nezinye izinto ezininzi ezinjengomgubo, xuba kakuhle nge-blender, uze wongeze amanzi ukuze unyibilike, emva koko i-HPMC inokunyibilika ngeli xesha ngaphandle kokuhlangana nokuxinana, kuba ikona nganye encinci, kukho intwana encinci ye-HPMC. Umgubo uya kunyibilika ngoko nangoko xa udibana namanzi. -Abavelisi be-putty powder kunye ne-mortar basebenzisa le ndlela. [I-Hydroxypropyl methyl cellulose (HPMC) isetyenziswa njengesithambisi kunye ne-arhente yokugcina amanzi kwi-putty powder mortar.]
6. Ingakanani idosi ye-HPMC eyongezwa kwi-putty powder?
Isixa seI-HPMCIsetyenziswa kwiindlela zokwenyani iyahluka ngokuxhomekeke kwimozulu, ubushushu, umgangatho we-calcium yomlotha wendawo, ifomula ye-putty powder, kunye "nomgangatho ofunekayo kubathengi". Ngokubanzi, iphakathi kwe-4 kg kunye ne-5 kg. Umzekelo, i-putty powder ekuhombiseni'>Beijing uninzi lwayo yi-5 kg; i-putty powder eGuizhou uninzi lwayo yi-5 kg ehlotyeni kunye ne-4.5 kg ebusika; isixa se-Yunnan sokongeza sincinci, ngokubanzi yi-3 kg-4 kg njalo njalo.
Ixesha leposi: Epreli-26-2024