1. Ziziphi iindlela zokuchithwa kwe-hydroxypropyl methylcellulose HPMC?
Impendulo: Indlela yokuchithwa kwamanzi ashushu: Ekubeni i-HPMC inganyibiliki emanzini ashushu, i-HPMC inokusasazwa ngokulinganayo emanzini ashushu kwinqanaba lokuqala, kwaye emva koko inyibilike ngokukhawuleza xa ipholile.Iindlela ezimbini eziqhelekileyo zichazwa ngolu hlobo lulandelayo:
1), yongeza i-1/3 okanye i-2/3 yomthamo ofunekayo wamanzi kwisitya, kwaye ushushu ukuya kwi-70 ° C, usasaze i-HPMC ngokwendlela ye-1), kwaye ulungiselele udaka lwamanzi ashushu;uze udibanise umlinganiselo oseleyo wamanzi abandayo kwi-slurry yamanzi ashushu, umxube wapholiswa emva kokuvuselela.
Indlela yokuxuba umgubo: xuba i-HPMC yomgubo kunye nesixa esikhulu sezinye izinto ezinomgubo, xuba ngokucokisekileyo kunye nomxube, emva koko wongeze amanzi ukuze unyibilike, emva koko i-HPMC inokunyibilika ngeli xesha ngaphandle kokudityaniswa, kuba kukho i-HPMC encinci kuyo yonke incinci. ikona Powder, iya kunyibilika ngokukhawuleza xa udibana namanzi.——Umgubo weputty kunye nabavelisi bodaka basebenzisa le ndlela.[I-Hydroxypropyl methylcellulose (HPMC) isetyenziswa njenge-thickener kunye ne-arhente yokugcina amanzi kwi-putty powder mortar.
2) Beka umlinganiselo ofunekayo wamanzi ashushu kwisikhongozeli kwaye ufudumale ukuya kuma-70°C.I-hydroxypropyl methylcellulose yongezwa ngokuthe ngcembe phantsi kokuvuselela okucothayo, ekuqaleni i-HPMC yadada phezu kwamanzi, kwaye ngokuthe ngcembe yenze i-slurry, eyapholiswa phantsi kokuvuselela.
2. Kukho iindidi ezininzi ze-hydroxypropyl methylcellulose HPMC.Yintoni umahluko kusetyenziso lwabo?
Impendulo: I-Hydroxypropyl methylcellulose HPMC inokwahlulwa ibe luhlobo olukhawulezayo kunye nohlobo olushushu lokuchithwa.Iimveliso zohlobo lwe-Instant zisasazeka ngokukhawuleza emanzini abandayo kwaye zinyamalale emanzini.Ngeli xesha, i-liquid ayinayo i-viscosity, kuba i-HPMC ihlakazekile kuphela emanzini, akukho ukunyibilika kwangempela.Malunga nemizuzu emi-2, i-viscosity yolwelo iyanda ngokuthe ngcembe, yenze i-colloid ebonakalayo ebonakalayo.Iimveliso ze-Hot-melt, xa zidibene namanzi abandayo, ziyakwazi ukusabalalisa ngokukhawuleza emanzini ashushu kwaye zinyamalale emanzini ashushu.Xa iqondo lobushushu lehla ukuya kwiqondo elithile lobushushu, i-viscosity iya kubonakala kancinane ide yenze i-colloid ebonakalayo ebonakalayo.Uhlobo lwe-hot-melt lunokusetyenziswa kuphela kwi-putty powder kunye nodaka.Kwiglue yolwelo kunye nepeyinti, kuya kubakho i-grouping phenomenon kwaye ayinakusetyenziswa.Uhlobo olukhawulezileyo lunoluhlu olubanzi lwezicelo.Ingasetyenziselwa kwi-putty powder kunye nodaka, kunye neglue yamanzi kunye nepeyinti, ngaphandle kokuchasana.
3. Yintoni eyona nto isetyenziswayo ye-hydroxypropyl methylcellulose (HPMC)?
Impendulo: I-HPMC isetyenziswa kakhulu kwizinto zokwakha, iingubo, iireyini zokwenziwa, iiseramikhi, amayeza, ukutya, amalaphu, ezolimo, izithambiso, icuba kunye namanye amashishini.I-HPMC inokohlulwa ibe: ibakala lokwakha, ibakala lokutya kunye nebakala lamayeza ngokokusetyenziswa.Okwangoku, uninzi lweemveliso zasekhaya zikumgangatho wokwakha.Kwibakala lokwakha, i-putty powder isetyenziswe kwisixa esikhulu, malunga ne-90% isetyenziselwa i-putty powder, kwaye intsalela isetyenziselwa udaka lwesamente kunye neglue.
4. Indlela yokugweba umgangatho we-hydroxypropyl methylcellulose (HPMC) ngokulula kunye ne-intuitively?
Impendulo: (1) Umxhuzulane okhethekileyo: Okukhona umkhulu umxhuzulane othile, kokukhona unzima ngakumbi.Umlinganiselo mkhulu, ngokubanzi ngenxa yokuba
(2) Ubumhlophe: Nangona ubumhlophe bungenako ukugqiba ukuba i-HPMC ilula ukuyisebenzisa, kwaye ukuba i-agent emhlophe yongezwa ngexesha lenkqubo yokuvelisa, iya kuchaphazela umgangatho wayo.Nangona kunjalo, uninzi lweemveliso ezilungileyo zinobumhlophe obuhle.
(3) Ukulunga: Ukulunga kwe-HPMC ngokubanzi kune-80 mesh kunye ne-100 mesh, kunye ne-120 mesh ingaphantsi.Uninzi lwe-HPMC eveliswe eHebei yi-80 mesh.Okukhona ukucoleka, kokukhona kungcono ngokubanzi.
(4) Ukuhanjiswa kokukhanya: faka i-hydroxypropyl methylcellulose (HPMC) emanzini ukwenza i-colloid ebonakalayo, kwaye ukhangele ukukhanya kwayo.Ukuphakama kokuhanjiswa kokukhanya, kungcono, kubonisa ukuba kukho i-insolubles encinci kuyo..Ukungeneka kwereactor ethe nkqo ngokuqhelekileyo kulungile, kwaye okwereactor ethe tye kubi, kodwa ayithethi ukuba umgangatho wereactor eme nkqo ungcono kunalowo wereactor ethe tye, kwaye kukho izinto ezininzi zokumisela umgangatho wemveliso. .Umxholo weqela le-hydroxypropyl kuwo liphezulu, kwaye umxholo weqela le-hydroxypropyl liphezulu, kwaye ukugcinwa kwamanzi kungcono.
5. Ziziphi iimpawu eziphambili zezobugcisa ze-hydroxypropyl methylcellulose (HPMC)?
Impendulo: Umxholo we-Hydroxypropyl kunye ne-viscosity, abaninzi abasebenzisi banenkxalabo malunga nezi zikhombisi zimbini.Abo banomxholo ophezulu we-hydroxypropyl ngokubanzi banokugcinwa kwamanzi okungcono.I-viscosity ephezulu, ukugcinwa kwamanzi, ngokulinganayo (kunokuba
6. Yintoni i-viscosity efanelekileyo ye-hydroxypropyl methylcellulose (HPMC)?
Impendulo: I-putty powder ngokuqhelekileyo yi-yuan eyi-100,000, kwaye iimfuno zodaka ziphezulu, kwaye kulula ukusebenzisa i-yuan eyi-150,000.Ngaphezu koko, owona msebenzi ubalulekileyo we-HPMC kukugcina amanzi, kulandelwa kukuqina.Kwi-putty powder, ngokude nje ukugcinwa kwamanzi kulungile kwaye i-viscosity iphantsi (i-70,000-80,000), nayo inokwenzeka.Ngokuqinisekileyo, ukuphakama kwe-viscosity, ngcono ukugcinwa kwamanzi okuhambelanayo.Xa i-viscosity idlula i-100,000, i-viscosity iya kuchaphazela ukugcinwa kwamanzi.Akusekho kakhulu.Ngokuqinisekileyo) kungcono, kwaye i-viscosity iphezulu, kwaye kungcono ukuyisebenzisa kwi-samente yodaka.
7. Ziziphi ezona zixhobo ziphambili ze-hydroxypropyl methylcellulose (HPMC)?
Impendulo: Izinto eziphambili ze-hydroxypropyl methylcellulose (HPMC): i-cotton ecocekileyo, i-methyl chloride, i-propylene oxide, kunye nezinye izinto eziluhlaza, i-caustic soda, i-asidi, i-toluene, i-isopropanol, njl.
8. Yintoni umsebenzi oyintloko wokusetyenziswa kwe-HPMC kwi-putty powder, kwaye ngaba kwenzeka ngamakhemikhali?
Impendulo: Kwi-putty powder, i-HPMC idlala iindima ezintathu zokuqina, ukugcinwa kwamanzi kunye nokwakhiwa.Ukutyebisa: Iselulosi inokujiya ukuze inqunyanyiswe kwaye igcine iyunifomu yesisombululo inyuka naphantsi, kwaye imelane nokudodobala.Ukugcinwa kwamanzi: yenza i-putty powder yome kancinci, kwaye uncedise i-calcium yothuthu ukuba isabele phantsi kwesenzo samanzi.Ukwakhiwa: I-Cellulose inefuthe lokuthambisa, elinokwenza ukuba i-putty powder ibe nokwakhiwa kakuhle.I-HPMC ayithathi nxaxheba kuyo nayiphi na intshukumo yeekhemikhali, kodwa idlala indima encedisayo kuphela.Ukongeza amanzi kwi-putty powder kunye nokuyibeka eludongeni kukusabela kweekhemikhali, kuba izinto ezintsha zenziwe.Ukuba ususa i-putty powder eludongeni eludongeni, ugaye ube ngumgubo, kwaye uyisebenzise kwakhona, ayiyi kusebenza ngenxa yokuba izinto ezintsha (i-calcium carbonate) zenziwe.) nayo.Amalungu aphambili omgubo we-ash calcium zezi: umxube weCa(OH)2, iCaO kunye nentwana yeCaCO3, CaO+H2O=Ca(OH)2—Ca(OH)2+CO2=CaCO3↓+H2O Ash calcium isemanzini nasemoyeni Ngaphantsi kwesenzo se-CO2, i-calcium carbonate yenziwe, ngelixa i-HPMC igcina amanzi kuphela, incedisa ukusabela okungcono kwe-ash calcium, kwaye ayithathi nxaxheba kuyo nayiphi na impendulo ngokwayo.
9. I-HPMC yi-ether ye-cellulose engekho i-ionic, ngoko ke yintoni i-non-ionic?
Impendulo: Ngokwemigaqo ye-layman, i-non-ion yinto engayi ku-ayoni emanzini.Ionization ibhekisela kwinkqubo apho i-electrolyte idityaniswe kwii-ion ezihlawulisiweyo ezinokuhamba ngokukhululekile kwi-solvent ethile (njengamanzi, utywala).Umzekelo, i-sodium chloride (i-NaCl), ityuwa esiyidla yonke imihla, inyibilika emanzini kwaye i-ionizes ukuvelisa i-ion ze-sodium ezihamba ngokukhululekileyo (Na +) ezihlawuliswa kakuhle kunye ne-chloride ion (Cl) ehlawuliswa kakubi.Oko kukuthi, xa i-HPMC ifakwe emanzini, ayiyi kuhlukana kwii-ion ezihlawuliswayo, kodwa zikhona ngendlela yeemolekyuli.
10. Ngaba kukho ubudlelwane phakathi kokuhla kwe-putty powder kunye ne-HPMC?
Impendulo: Ukulahlekelwa ngumgubo we-putty powder kuhambelana ikakhulu nomgangatho we-ash calcium, kwaye ayinanto encinci ne-HPMC.Umxholo ophantsi we-calcium we-gray calcium kunye nomlinganiselo ongafanelekanga we-CaO kunye ne-Ca (OH) i-2 kwi-gray calcium iya kubangela ukulahleka kwepowder.Ukuba inento yokwenza ne-HPMC, ngoko ukuba i-HPMC inokugcinwa kwamanzi okungahambi kakuhle, kuya kubangela ukulahlekelwa ngumgubo.
11. Yintoni ubushushu bejeli ye-hydroxypropyl methylcellulose enxulumene nayo?
Impendulo: Ubushushu bejeli ye-HPMC inxulumene nomxholo wayo we-methoxy, i-methoxy content↓ iphantsi, iqondo lokushisa eliphezulu le-gel.
12. Indlela yokukhetha i-hydroxypropyl methylcellulose (HPMC) efanelekileyo ngeenjongo ezahlukeneyo?
Impendulo: Ukusetyenziswa kwe-putty powder: iimfuno zincinci, kwaye i-viscosity yi-100,000, eyaneleyo.Into ebalulekileyo kukugcina amanzi kakuhle.Ukusetyenziswa komdaka: iimfuno eziphezulu, i-viscosity ephezulu, i-150,000 ingcono.Ukusetyenziswa kweglue: iimveliso ezikhawulezayo ezine-viscosity ephezulu ziyafuneka.
13. Uthini umahluko phakathi kohlobo olukhawulezayo lwamanzi abandayo kunye nohlobo olunonyibiliko olushushu lwe-hydroxypropyl methylcellulose kwinkqubo yokuvelisa?
Impendulo: Uhlobo olukhawulezayo lwamanzi abandayo lwe-HPMC luphathwe nge-glyoxal, kwaye lusasazeka ngokukhawuleza emanzini abandayo, kodwa alunyibiliki ngokwenene.Ichithwa kuphela xa i-viscosity inyuka.Iintlobo ezishushu ezinyibilikayo aziphathwa ngomphezulu nge-glyoxal.Ukuba inani le-glyoxal likhulu, ukusabalalisa kuya kukhawuleza, kodwa i-viscosity iya kwanda ngokukhawuleza, kwaye ukuba isixa sincinci, okuchaseneyo kuya kuba yinyani.
14. Yintoni ivumba le-hydroxypropyl methylcellulose (HPMC)?
Impendulo: I-HPMC eveliswa yindlela ye-solvent isebenzisa i-toluene kunye ne-isopropanol njenge-solvents.Ukuba ukuhlamba akulunganga kakhulu, kuya kubakho ivumba elishiyekileyo.
15. Leliphi elinye igama le-hydroxypropyl methylcellulose?
Impendulo: Hydroxypropyl Methyl Cellulose, IsiNgesi: Hydroxypropyl Methyl Cellulose Isifinyezo: HPMC okanye MHPC Alias: Hypromellose;i-cellulose hydroxypropyl methyl ether;I-Hypromellose, iSelulosi, i-2-hydroxypropyl methyl Cellulose ether.I-Cellulose hydroxypropyl methyl ether Hyprolose.
16. Yintoni ekufuneka iqwalaselwe kwisicelo sokwenene sobudlelwane phakathi kwe-viscosity kunye nobushushu be-HPMC?
Impendulo: I-viscosity ye-HPMC ihambelana ngokungafaniyo neqondo lokushisa, oko kukuthi, i-viscosity iyanda njengoko iqondo lokushisa liyancipha.I-viscosity yemveliso esidla ngokubhekisela kuyo ibhekiselele kwisiphumo sovavanyo lwesisombululo sayo se-aqueous ye-2% kwiqondo lokushisa lama-20 degrees Celsius.
Kwizicelo eziphathekayo, kufuneka kuqatshelwe ukuba kwiindawo ezinomahluko omkhulu weqondo lokushisa phakathi kwehlobo nobusika, kucetyiswa ukuba kusetyenziswe i-viscosity ephantsi kakhulu ebusika, ehambelana nokwakhiwa.Ngaphandle koko, xa iqondo lokushisa liphantsi, i-viscosity ye-cellulose iya kwanda, kwaye ukuvakalelwa kwesandla kuya kuba nzima xa kukhuhla.I-viscosity ephakathi: 75000-100000 Isetyenziswa kakhulu kwi-putty.Isizathu: ukugcinwa kakuhle kwamanzi.I-viscosity ephezulu: 150000-200000 Ikakhulu isetyenziselwa i-polystyrene particle thermal insulation mortar glue powder and vitrified microbead thermal insulation mortar.Isizathu: i-viscosity ephezulu, udaka alulula ukulahla, ukuxhoma, kunye nokuphucula ukwakhiwa.
17. Ukusetyenziswa kwe-HPMC kwi-putty powder, yintoni isizathu se-bubbles kwi-putty powder?
Impendulo: Kwi-putty powder, i-HPMC idlala iindima ezintathu zokuqina, ukugcinwa kwamanzi kunye nokwakhiwa.Musa ukuthatha inxaxheba kuzo naziphi na iimpendulo.Izizathu zamaqamza: 1. Beka amanzi amaninzi kakhulu.2. Umaleko ongezantsi awusomile, vele ukhuphe enye ingqimba phezulu, kwaye kulula ukuphosa amagwebu.
Ixesha lokuposa: Jan-13-2023