1, yintoni eyona nto isetyenziswa kakhulu yi-hydroxypropyl methyl cellulose (HPMC)?
I-HPMC isetyenziswa kakhulu kwizixhobo zokwakha, ii-coating, ii-synthetic resins, ii-ceramics, amayeza, ukutya, amalaphu, ezolimo, izinto zokuthambisa, icuba kunye neminye imboni. I-HPMC inokwahlulwahlulwa ibe: umgangatho wokwakha, umgangatho wokutya kunye nomgangatho wezonyango ngokusetyenziswa. Okwangoku, uninzi lomgangatho wokwakha wasekhaya, kwinqanaba lokwakha, umthamo we-putty powder mkhulu, malunga ne-90% isetyenziselwa ukwenza i-putty powder, enye iseleyo isetyenziselwa ukwenza i-samente mortar kunye ne-glue.
2, i-hydroxypropyl methyl cellulose (HPMC) yahlulwe yaba ziindidi ezininzi, yintoni umahluko ekusetyenzisweni kwayo?
I-HPMC inokwahlulwahlulwa ibe luhlobo lwesisombululo esikhawulezileyo nesishushu, iimveliso ezikhawulezileyo, emanzini abandayo zisasazeka ngokukhawuleza, zinyamalale emanzini, ngeli xesha ulwelo alunazo ii-viscosity, kuba i-HPMC isasazeka nje emanzini, akukho kunyibilika kokwenyani. Malunga nemizuzu emi-2, i-viscosity yolwelo iyanda kancinci, yenze i-colloid ebonakalayo ethambileyo. Iimveliso ezinyibilikayo ezishushu, emanzini abandayo, zinokusasazeka ngokukhawuleza emanzini ashushu, zinyamalale emanzini ashushu, xa ubushushu buhla bufikelela kubushushu obuthile, i-viscosity ibonakala kancinci, de kube kusekwe i-colloid ebonakalayo ethambileyo. Isisombululo esishushu singasetyenziswa kuphela kwi-putty powder kunye ne-mortar, kwi-glue yolwelo kunye nepeyinti, kuya kubakho isiganeko seqela, asinakusetyenziswa. I-Instant Solution Model, Uluhlu lwesicelo lubanzi kakhulu, kwi-be dired by child powder kunye ne-mortar, nakwi-Liquid Glue kunye ne-coating, bonke banokusebenzisa, ngaphandle kokuphi na ukuchasana.
3, iindlela zokunyibilika ze-hydroxypropyl methyl cellulose (HPMC) zinazo ezo?
– A: Indlela yokunyibilikisa amanzi ashushu: kuba i-HPMC ayinyibiliki emanzini ashushu, ngoko ke i-HPMC yasekuqaleni ingasasazeka ngokulinganayo emanzini ashushu, ize inyibilike ngokukhawuleza xa iphola, iindlela ezimbini eziqhelekileyo zichazwa ngolu hlobo lulandelayo: 1), kwisikhongozeli ibe ngumlinganiselo wamanzi ashushu afunekayo, kwaye ifudunyezwe ukuya kuthi ga kwi-70℃. Yongeza kancinci kancinci i-hydroxypropyl methylcellulose phantsi kokuxubha kancinci, i-HPMC yaqala ukudada phezu kwamanzi, ize emva koko yenze i-slurry, phantsi kokuxubha ipholisa i-slurry. 2), yongeza ubungakanani obufunekayo be-1/3 okanye i-2/3 yamanzi kwisikhongozeli, kwaye ufudumale ukuya kuthi ga kwi-70℃, ngokwendlela ye-1), ukusasazeka kwe-HPMC, ukulungiswa kwe-slurry yamanzi ashushu; Emva koko yongeza ubungakanani obuseleyo bamanzi abandayo kwi-slurry eshushu, uxube kwaye upholise umxube. Indlela yokuxuba umgubo: Umgubo we-HPMC kunye nenani elikhulu lezinye izithako zezinto ezi-powdery, zixutywe kakuhle nge-blender, emva kokongeza amanzi ukuze anyibilike, emva koko i-HPMC inokunyibilika ngeli xesha, kodwa hayi ukudibana, kuba ikona nganye encinci, umgubo omncinci we-HPMC kuphela, amanzi aya kunyibilika ngoko nangoko. – Amashishini okuvelisa umgubo we-putty kunye nodaka asebenzisa le ndlela. I-Hydroxypropyl METHYL cellulose (HPMC) ISETYENZISWA NJENGE-arhente yokutyeba kunye ne-arhente yokugcina amanzi kwi-putty powder mortar.
4, kulula kangakanani kwaye kulula kangakanani ukumisela umgangatho we-hydroxypropyl methyl cellulose (HPMC)?
– Impendulo: (1) ubumhlophe: nangona ubumhlophe bungenakukwazi ukumisela ukuba i-HPMC ilungile na ukuyisebenzisa, kwaye ukuba yongezwa kwinkqubo yokuvelisa i-agent yokwenza mhlophe, iya kuchaphazela umgangatho wayo. Nangona kunjalo, iimveliso ezilungileyo ikakhulu zimhlophe. (2) ubumhlophe: Ubumhlophe be-HPMC ngokubanzi bungama-80 mesh kunye ne-100 mesh, injongo ingaphantsi kwe-120, i-Hebei HPMC ikakhulu ingama-80 mesh, kokukhona ubumhlophe buncinci, ngokubanzi kokukhona kungcono. (3) ukudluliselwa: i-hydroxypropyl methyl cellulose (HPMC) emanzini, ukwakheka kwe-colloid ecacileyo, ukubona ukudluliselwa kwayo, kokukhona ukudluliselwa kukhulu, kokukhona kungcono, izinto ezinganyibiliki ngaphakathi. Ukuvuleka kwe-reactor ethe nkqo ngokubanzi kulungile, i-reactor ethe tye imbi, kodwa ayinakubonisa ukuba umgangatho wemveliso ye-reactor ethe nkqo ungcono kunowomveliso we-reactor ethe tye, umgangatho wemveliso umiselwa zizinto ezininzi. (4) ubunzima obuthile: kokukhona ubunzima obuthile bukhulu, kokukhona ubunzima bungcono. Kunokuba luncedo, ngokubanzi kuba umxholo we-hydroxypropyl uphezulu, umxholo we-hydroxypropyl uphezulu, ngoko ukugcinwa kwamanzi kungcono.
5, i-hydroxypropyl methyl cellulose (HPMC) kwinani le-putty powder?
– Impendulo: I-HPMC ekusetyenzisweni kwayo kanye, ngokwemeko-bume yemozulu, ubushushu, umgangatho we-calcium ash, ifomula ye-putty powder kunye “neemfuno zabathengi zomgangatho”, kwaye kukho ezahlukeneyo. Ngokubanzi, idosi ye-putty engangeni manzi kwi-4 kg – 5 kg phakathi. Umzekelo: i-Beijing putty powder, ikakhulu ibeka i-5 kg; E-Guizhou, uninzi lwayo luyi-5 kg ehlotyeni kunye ne-4.5 kg ebusika. Ubungakanani be-Yunnan buncinci, ngokubanzi yi-3 kg -4 kg njalo njalo. Kwaye idosi ye-HPMC kwi-821 putty ngokubanzi yi-2 ~ 3 kg.
6, i-hydroxypropyl methyl cellulose (HPMC) ingakanani i-viscosity efanelekileyo?
– Impendulo: KHAWULEZILE NGOMPHU WOMNTWANA NJALO 100 LAW Kulungile, IMFUNO KWI-MORTAR INDLELA EMDE, FUNA UKUSEBENZISA 150 LAW ALWIMI. Ngaphezu koko, eyona ndima ibalulekileyo ye-HPMC kukugcina amanzi, kulandele ukuqina. Kwi-putty powder, lo gama nje ukugcina amanzi kulungile, i-viscosity iphantsi (7-80 law), kunokwenzeka, ewe, i-viscosity inkulu, ukugcinwa kwamanzi kungcono, xa i-viscosity ingaphezulu kwe-100 law, i-viscosity ayinampembelelo ingako ekugcinweni kwamanzi.
7, i-hydroxypropyl methyl cellulose (HPMC) zeziphi izalathisi zobugcisa eziphambili?
A: Ubungakanani beHydroxypropyl kunye ne-viscosity, nto leyo exhalabisa uninzi lwabasebenzisi. Ubungakanani beHydroxypropyl buphezulu, ukugcinwa kwamanzi ngokubanzi kungcono. Ubuninzi, ukugcinwa kwamanzi, ukuhambelana (kodwa kungekhona ngokupheleleyo) nako kungcono, kunye nobunzima, kwi-samente mortar kungcono ukusebenzisa ezinye.
8, i-hydroxypropyl methyl cellulose (HPMC) ziintoni izinto eziphambili ezisetyenziswa ekukhuleni?
– Impendulo: i-hydroxypropyl methyl cellulose (HPMC) yezinto eziphambili ezisetyenzisiweyo: umqhaphu ocoliweyo, i-chloromethane, i-propylene oxide, nezinye izinto ezisetyenzisiweyo, i-tablet alkali, i-asidi, i-toluene, i-isopropyl alcohol, njl.
9, HPMC ekusetyenzisweni komgubo we-putty, yintoni indima ephambili, nokuba yikhemistri?
I-HPMC kwi-putty powder, ukuqina, ukugcinwa kwamanzi kunye nokwakhiwa kweendima ezintathu. Ukuqina: I-Cellulose inokwenziwa ibe nkulu ukuze idlale i-suspension, ukuze isisombululo sigcine indima efanayo phezulu nasezantsi, sichasene nokuhamba kwamanzi. Ukugcinwa kwamanzi: yenza i-putty powder yome kancinci, i-assistant ash calcium reaction phantsi kwesenzo samanzi. Ukwakhiwa: I-Cellulose inefuthe lokuthambisa, inokwenza i-putty powder ibe nokwakhiwa okuhle. I-HPMC ayithathi nxaxheba kuyo nayiphi na i-chemical reactions, idlala indima yokuncedisa kuphela. I-putty powder eyongeziweyo ngamanzi, eludongeni, yi-chemical reaction, kuba kukho ukuveliswa kwezinto ezintsha, i-putty powder eludongeni isuka eludongeni, icolwe ibe yi-powder, ize isetyenziselwe, ayisekho, kuba yenze into entsha (i-calcium carbonate). Iinxalenye eziphambili ze-gray calcium powder zezi: Ca(OH)2, CaO kunye nomxube omncinci weCaCO3, CaO+H2O=Ca(OH)2 – Ca(OH)2+CO2=CaCO3↓+H2O calcium ash emanzini nasemoyeni phantsi kwesenzo seCO2, ukwakheka kwecalcium carbonate, kunye nokugcinwa kwamanzi kuphela kweHPMC, umphunga wecalcium oncedisayo ongcono, owayo awuzange uthathe inxaxheba kuyo nayiphi na impendulo.
10, i-HPMC non-ionic cellulose ether, ngoko ke yintoni i-non-ionic?
A: Ngokubanzi, i-nonionic yinto ekwimanzini engayi-ioniziyo. I-ionization yinkqubo apho i-electrolyte idityaniswe khona ibe yi-ion ezitshajiweyo ezihamba ngokukhululekileyo kwisinyibilikisi esithile, njengamanzi okanye utywala. Umzekelo, i-sodium chloride (NaCl), ityuwa esiyityayo yonke imihla, iyanyibilika emanzini kwaye i-ioniziyo ukuvelisa i-ion ze-sodium ezihamba ngokukhululekileyo (Na+) ezitshajiweyo kakuhle kunye ne-ion ze-chloride (Cl) ezitshajiweyo kakubi. Ngamanye amazwi, i-HPMC emanzini ayihlukani ibe yi-ion ezitshajiweyo, kodwa ikhona njengee-molecule.
11, ubushushu bejeli ye-hydroxypropyl methylcellulose kwaye yintoni enxulumene nayo?
– Impendulo: Ubushushu bejeli ye-HPMC bunxulumene nomxholo wayo we-methoxy. Okukhona umxholo we-methoxy uphantsi, kokukhona ubushushu bejeli buphezulu.
12. Ngaba kukho ulwalamano phakathi komgubo we-putty kunye ne-HPMC?
– Impendulo: umgubo we-putty powder kunye nomgangatho we-calcium zinobudlelwane obuhle, kwaye i-HPMC ayinabudlelwane buninzi. Umxholo ophantsi we-calcium we-calcium kunye nomlinganiselo we-CaO, i-Ca(OH)2 kwi-calcium ash akufanelekanga, kuya kubangela ukuhla komgubo. Ukuba inento yokwenza ne-HPMC, ngoko ukugcinwa kwamanzi kwe-HPMC kuphantsi, kuya kubangela nokuhla komgubo. Ngezizathu ezithile, nceda ujonge umbuzo 9.
13, uhlobo olunyibilikayo lwamanzi abandayo lwe-hydroxypropyl methylcellulose kunye nohlobo olunyibilikayo olushushu kwinkqubo yemveliso, yintoni umahluko?
– Uhlobo lwe:HPMC olunyibilikayo emanzini abandayo lusetyenziswa emva konyango lomphezulu we-glyoxal, lufakwa emanzini abandayo lusasazeka ngokukhawuleza, kodwa alunyibiliki ngokwenene, i-viscosity inyuke, iyanyibilika. Uhlobo olunyibilikayo kubushushu aluzange luphathwe nge-glyoxal kumphezulu. Umthamo we-glyoxal mkhulu, ukusasazeka kwawo kuyakhawuleza, kodwa i-viscosity icotha, umthamo umncinci, ngokuchaseneyo.
14, i-hydroxypropyl methyl cellulose (HPMC) inevumba lokuba kwenzeka ntoni?
– Impendulo: I-HPMC eveliswa ngendlela yesinyibilikisi yenziwe nge-toluene kunye ne-isopropyl alcohol njengesinyibilikisi. Ukuba ukuhlamba akukuhle kakhulu, kuya kubakho incasa eseleyo.
15, iindlela ezahlukeneyo zokusetyenziswa, indlela yokukhetha i-hydroxypropyl methyl cellulose (HPMC) efanelekileyo?
– Impendulo: Ukusetyenziswa komgubo we-putty: imfuneko iphantsi, i-viscosity yi-100 lamawaka, kulungile, into ebalulekileyo kukugcina amanzi engcono. Ukusetyenziswa kodaka: imfuneko iphezulu, imfuneko yi-viscosity ephezulu, i-150 lamawaka kufuneka ibe ngcono. Ukusetyenziswa kweglue: kufuneka iimveliso ezikhawulezileyo, i-viscosity ephezulu.
16, i-hydroxypropyl methylcellulose yintoni igama elingelolakho?
A: I-Hydroxypropyl Methyl Cellulose, isiNgesi: Isifinyezo se-Hydroxypropyl Methyl Cellulose: HPMC okanye igama elingelolakhe le-MHPC: I-Hydroxypropyl Methyl Cellulose; I-Cellulose hydroxypropyl methyl ether; I-Cellulose Hypromellose, i-2-hydroxypropyl methyl I-Cellulose ether. I-Cellulose hydroxypropyl Methyl ether Hyprolose.
17, HPMC ekusetyenzisweni komgubo we-putty, i-putty powder bubble yintoni isizathu?
I-HPMC kwi-putty powder, ukuqina, ukugcinwa kwamanzi kunye nokwakhiwa kweendima ezintathu. Ayithathi nxaxheba kuyo nayiphi na impendulo. Isizathu samaqamza: 1, amanzi abekwe kakhulu. 2, ezantsi awomileyo, phezulu kwaye akhuhle umaleko, kulula nokuwaqamza.
18. Ifomula ye-putty powder yeendonga zangaphakathi nezangaphandle?
– Impendulo: umgubo we-putty ongangeni manzi wodonga lwangaphakathi: 750~ 850KG ye-calcium enzima, 150~ 250KG ye-calcium engwevu, 4~ 5KG ye-cellulose ether, kunye ne-1~ 2KG ye-polyvinyl alcohol powder zingongezwa ngokufanelekileyo; Umgubo we-putty wodonga lwangaphandle: isamente emhlophe 350KG, i-calcium enzima 500-550kg, i-calcium engwevu 100-150kg, umgubo we-latex 8-12kg, i-cellulose ether 5KG, i-wood fiber 3KG.
19. Yintoni umahluko phakathi kwe-HPMC kunye ne-MC?
– I-MC ye-methyl cellulose, yikotoni ecociweyo emva konyango lwe-alkali, ene-methane chloride njenge-etherification agent, ngokusebenzisa uthotho lweempendulo kunye ne-cellulose ether. Ngokubanzi, inqanaba lokutshintshwa yi-1.6 ~ 2.0, kwaye ukunyibilika kuyahluka ngokwenqanaba lokutshintshwa. Yi-non-ionic cellulose ether.
(1) Ukugcinwa kwamanzi kwe-methyl cellulose kuxhomekeke kubungakanani bayo bokongeza, ukuxinana, ukucoleka kwamasuntswana kunye nesantya sokunyibilika. Ngokubanzi yongeza ubungakanani obukhulu, ukucoleka okuncinci, ukucoleka, izinga eliphezulu lokugcinwa kwamanzi. Phakathi kwazo, ubungakanani bokongeza kwizinga lokugcinwa kwamanzi bunempembelelo enkulu, ukucoleka kunye nenqanaba lezinga lokugcinwa kwamanzi alilingani nobudlelwane. Izinga lokunyibilika lixhomekeke kakhulu kwinqanaba lokuguqulwa komphezulu kunye nokucoleka kwamasuntswana e-cellulose. Kwi-cellulose ether engentla, izinga lokugcinwa kwamanzi le-methyl cellulose kunye ne-hydroxypropyl methyl cellulose liphezulu.
(2) I-Methyl cellulose inokunyibilika emanzini abandayo, amanzi ashushu anyibilikisiweyo aya kudibana nobunzima, isisombululo sayo samanzi esikuluhlu lwe-pH=3~12 sizinzile kakhulu. Ihambelana kakuhle nesitatshi, i-guanidine gum kunye nezinye izinto ezininzi ezibangela ukubola. Ukubola kwenzeka xa ubushushu bufikelela kubushushu bokubola.
(3) Utshintsho lobushushu luya kuchaphazela kakhulu izinga lokugcina amanzi le-methyl cellulose. Ngokubanzi, xa ubushushu buphezulu, kokukhona ukugcinwa kwamanzi kuba kubi. Ukuba ubushushu be-mortar budlula i-40℃, ukugcinwa kwamanzi kwe-methyl cellulose kuya kuba kubi kakhulu, nto leyo echaphazela kakhulu ukwakhiwa kwe-mortar.
(4) I-Methyl cellulose inempembelelo ecacileyo ekwakhiweni nasekunamatheleni kwe-mortar. Apha, "ukunamathela" kubhekisa kumandla okunamathela avakalayo phakathi kwesixhobo sokusebenzisa somsebenzi kunye ne-substrate yodonga, oko kukuthi, ukumelana nokucheba kwe-mortar. Ipropati yokuncamathelisa inkulu, ukumelana nokucheba kwe-mortar mkhulu, kwaye amandla afunekayo kubasebenzi kwinkqubo yokusebenzisa nawo makhulu, ngoko ke ipropati yokwakha ye-mortar ayilunganga.
Kwiimveliso ze-cellulose ether, i-methyl cellulose adhesion ikwinqanaba eliphakathi. I-HPMC ye-hydroxypropyl methyl cellulose, yenziwe ngekotoni ecociweyo emva konyango lwe-alkalization, kunye ne-propylene oxide kunye ne-chloromethane njenge-etherifying agent, ngokusebenzisa uthotho lweempendulo kwaye yenziwe nge-non-ionic cellulose mixed ether. Iqondo lokutshintshwa ngokubanzi yi-1.2 ~ 2.0. Iimpawu zayo zichaphazeleka yimilinganiselo yomxholo we-methoxy kunye nomxholo we-hydroxypropyl.
(1) i-hydroxypropyl methyl cellulose enyibilikayo emanzini abandayo, amanzi ashushu anyibilikisiweyo aya kujongana nobunzima. Kodwa ubushushu bayo be-gelation emanzini ashushu buphezulu kakhulu kunobo be-methyl cellulose. Ukunyibilika kwe-methyl cellulose emanzini abandayo nako kuphuculwe kakhulu.
(2) i-viscosity ye-hydroxypropyl methyl cellulose inxulumene nobunzima bayo beemolekyuli, kwaye ubunzima obukhulu beemolekyuli yi-viscosity ephezulu. Ubushushu buya kuchaphazela i-viscosity yayo, ubushushu buyanyuka, i-viscosity iyancipha. Nangona kunjalo, i-viscosity yobushushu obuphezulu iphantsi kuneye-methyl cellulose. Isisombululo sizinzile xa sigcinwe kubushushu begumbi.
(3) i-hydroxypropyl methyl cellulose izinzile kwi-asidi kunye ne-alkali, kwaye isisombululo sayo samanzi sizinzile kakhulu kuluhlu lwe-pH=2~12. I-caustic soda kunye namanzi ekalika azinampembelelo ingako kwiipropati zayo, kodwa i-alkali inokukhawulezisa izinga layo lokunyibilika kwaye iphucule i-viscosity ye-pin. I-Hydroxypropyl methyl cellulose izinzile kwi-salts ngokubanzi, kodwa xa uxinzelelo lwe-salty solution luphezulu, i-viscosity ye-hydroxypropyl methyl cellulose solution idla ngokwanda.
(4) Ukugcinwa kwamanzi kwe-hydroxypropyl methyl cellulose kuxhomekeke kubungakanani bayo obongeziweyo, i-viscosity, njl.njl., inani elifanayo lokugcinwa kwamanzi liphezulu kune-methyl cellulose.
(5) i-hydroxypropyl methyl cellulose ingaxutywa nee-polymer compounds ezinyibilikayo emanzini ukuze ibe sisisombululo esifanayo nesinoburhabaxa. Ezifana ne-polyvinyl alcohol, i-starch ether, i-plant gum njalo njalo.
(6) Ukunamathela kwe-hydroxypropyl methyl cellulose kulwakhiwo lwe-mortar kuphezulu kunoko kwe-methyl cellulose.
(7) i-hydroxypropyl methyl cellulose inokumelana okungcono kwe-enzymatic kune-methyl cellulose, kwaye amathuba okuwohloka kwe-enzymatic kwesisombululo sayo aphantsi kune-methyl cellulose.
20, ubudlelwane phakathi kwe-viscosity kunye nobushushu be-HPMC, ekufuneka buqwalaselwe xa busetyenziswa?
– Impendulo: I-viscosity ye-HPMC ihambelana ngokuphambeneyo nobushushu, oko kukuthi, i-viscosity iyanda ngokuncipha kobushushu. Xa sithetha nge-viscosity yemveliso, sithetha isiphumo sokulinganisa isisombululo sayo samanzi se-2% kubushushu obungama-20 degrees Celsius. Kwindlela yokusebenza, kwiindawo ezinomahluko omkhulu wobushushu phakathi kwehlobo nobusika, kufuneka kunikwe ingqalelo kwingcebiso yokusebenzisa i-viscosity ephantsi ebusika, elungele ngakumbi ukwakhiwa. Ngaphandle koko, xa ubushushu buphantsi, i-viscosity ye-cellulose iya kwanda, xa kukhuhlwa, ukuziva kuya kuba nzima. I-viscosity ephakathi: 75000-100000 isetyenziswa ikakhulu ngenxa yesizathu se-putty: ukugcinwa kwamanzi okuhle i-viscosity ephezulu: 150000-200000 isetyenziswa ikakhulu kwi-polystyrene particles thermal insulation mortar glue powder material kunye nee-glass beads thermal insulation mortar. Isizathu: i-viscosity ephezulu, i-mortar ayilula ukuyilahla i-ash kunye ne-flow hanging, iphucule ulwakhiwo. Kodwa ngokubanzi, okukhona i-viscosity iphezulu, kokukhona ukugcinwa kwamanzi kuya kuba ngcono, ngoko ke iifektri ezininzi ze-dry mortar zijonga ixabiso, kunye ne-medium viscosity cellulose (75,000-100000) ukuze ithathe indawo ye-low viscosity cellulose (20,000-40000) ukunciphisa ubungakanani bokongeza.
Ixesha lokuthumela: Feb-05-2024