1, yintoni eyona nto isetyenziswa kakhulu yi-hydroxypropyl methyl cellulose (HPMC)?
I-HPMCIsetyenziswa kakhulu kwizixhobo zokwakha, iipeyinti, iiresini zokwenziwa, iiseramikhi, amayeza, ukutya, ilaphu, 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 neglue.
2, i-hydroxypropyl methyl cellulose (HPMC) yahlulwe yaba ziindidi ezininzi, yintoni umahluko ekusetyenzisweni kwayo?
I-HPMC inokwahlulwahlulwa ibe ziimveliso zohlobo lwesisombululo esikhawulezileyo kunye nohlobo lwesisombululo esishushu, iimveliso zohlobo lwesisombululo esikhawulezileyo, ezisasazeka ngokukhawuleza emanzini abandayo, zinyamalale emanzini, ngeli xesha ulwelo aluna-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 NGOMPHU WOMNTWANA NOMQAQA, KWAYE KWI-LIQUID GLUE NE-COATING, BONKE BANGASEBENZISA, NGAPHANDLE KWEZINTO EZICHASAYO.
3, iindlela zokunyibilika ze-hydroxypropyl methyl cellulose (HPMC) zinazo ezo?
Indlela yokunyibilikisa amanzi ashushu: Ngenxa yokuba i-HPMC ayinyibiliki emanzini ashushu, ngoko ke i-HPMC yakuqala ingasasazeka ngokulinganayo emanzini ashushu, ize inyibilike ngokukhawuleza xa ipholile, iindlela ezimbini eziqhelekileyo zichazwa ngolu hlobo lulandelayo:
1) Faka amanzi ashushu afunekayo kwisitya uze uwafudumeze ukuya kuthi ga kwi-70℃. Yongeza kancinci kancinci i-hydroxypropyl methylcellulose xa uvuselela kancinci, i-HPMC yaqala ukudada phezu kwamanzi, ize emva koko yenze i-slurry kancinci, phantsi kokuvuselela ipholisa i-slurry.
2), yongeza umlinganiselo ofunekayo we-1/3 okanye i-2/3 yamanzi kwisitya, uze ufudumale uye kuma-70℃, ngokwendlela ye-1), ukusasazwa kwe-HPMC, ukulungiswa kwe-slurry yamanzi ashushu; Emva koko yongeza umlinganiselo oseleyo wamanzi abandayo kwi-slurry eshushu, uvuselele kwaye upholise umxube.
Indlela yokuxuba umgubo: Umgubo we-HPMC kunye nenani elikhulu lezinye izithako ze-powdery, zidityaniswe kakuhle ne-blender, emva kokongeza amanzi ukuze anyibilike, emva koko i-HPMC inokunyibilika ngeli xesha, kodwa kungekhona ukuhlangana, 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-agent yokutyebisa kunye ne-arhente yokugcina amanzi kwi-putty powder mortar.
4, kulula kangakanani kwaye kulula kangakanani ukumisela umgangatho we-hydroxypropyl methyl cellulose (HPMC)?
(1) ubumhlophe: nangona ubumhlophe bungenakukwazi ukumisela ukuba kulula na ukusebenzisa i-HPMC, kwaye ukuba yongezwa kwinkqubo yokuvelisa i-arhente yokwenza mhlophe, iya kuchaphazela umgangatho wayo. Nangona kunjalo, iimveliso ezilungileyo ikakhulu zimhlophe.
(2) ubunono: Ubunono be-HPMC ngokubanzi buyi-80 mesh kunye ne-100 mesh, injongo ingaphantsi nge-120, i-Hebei HPMC ikakhulu yi-80 mesh, okukhona ubunono buncinci, kokukhona bungcono.
(3) ukudluliselwa: i-hydroxypropyl methyl cellulose (HPMC) emanzini, ukwakheka kwe-colloid ecacileyo, jonga ukudluliselwa kwayo, okukhona ukudluliselwa kukhulu, kokukhona kungcono, izinto ezinganyibiliki kangako ngaphakathi. Ukungena kwe-reactor ethe nkqo ngokubanzi kulungile, i-reactor ethe tye imbi kakhulu, kodwa ayinakubonisa ukuba umgangatho wemveliso ye-reactor ethe nkqo ungcono kunowomveliso we-reactor ethe tye, umgangatho wemveliso umiselwa zizinto ezininzi.
(4) ubunzima obuthile: okukhona ubunzima obuthile bukhulu, kokukhona ubunzima bungcono. Kunokuba bukhulu, ngokubanzi kuba umxholo we-hydroxypropyl uphezulu, umxholo we-hydroxypropyl uphezulu, ngoko ke ukugcinwa kwamanzi kungcono.
5, i-hydroxypropyl methyl cellulose (HPMC) kwinani le-putty powder?
I-HPMC ekusetyenzisweni kwayo kanye, ngokwemeko-bume yemozulu, ubushushu, umgangatho we-calcium ash, ifomula ye-putty powder kunye "neemfuno zabathengi zomgangatho", kwaye zahlukile. Ngokubanzi, phakathi kweekhilogram ezine ukuya kwezintlanu. Umzekelo: i-Beijing putty powder, ikakhulu ibeka iikhilogram ezi-5; EGuizhou, uninzi lwazo luyi-5 kg ehlotyeni kunye ne-4.5 kg ebusika. Ubungakanani beYunnan buncinci, ngokubanzi yi-3 kg -4 kg njalo njalo.
6, i-hydroxypropyl methyl cellulose (HPMC) ingakanani i-viscosity efanelekileyo?
KHAWULEZIWE NGUMPHU WOMNTWANA NGOKUBANZI 100 LAW Kulungile, IMFUNO KWI-MORTAR INDLELA EMDE, UFUNA UKUSEBENZISA 150 LAW ALWIMI. Ngaphezu koko, eyona ndima ibalulekileyo ye-HPMC kukugcinwa kwamanzi, kulandele ukuqina. Kwi-putty powder, lo gama nje ukugcinwa kwamanzi 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?
Ubungakanani beHydroxypropyl kunye ne-viscosity, uninzi lwabasebenzisi luxhalabile ngezi index zimbini. Ubungakanani beHydroxypropyl buphezulu, ukugcinwa kwamanzi ngokubanzi kungcono. Ubuninzi, ukugcinwa kwamanzi, isihlobo (kodwa kungekhona ngokupheleleyo) nako kungcono, kunye nobunzima, kwi-samente mortar kungcono ukusebenzisa ezinye.
8, i-hydroxypropyl methyl cellulose (HPMC) ziintoni izinto eziphambili ezisetyenziswa ekukhuleni?
IHydroxypropyl methyl cellulose (HPMC) zizinto eziphambili ezisetyenziswa ekutyeni: umqhaphu ocoliweyo, ichloromethane, ipropylene oxide, ezinye izinto ezisetyenziswa ekutyeni, iipilisi zealkali, iasidi, itoluene, i-isopropyl alcohol njalo njalo.
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?
Ngokubanzi, i-nonionic yinto engayi-ionizi emanzini. 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-ionizing 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?
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?
Umgubo weputty powder kunye nomgangatho wecalcium zinobudlelwane obuhle, kwaye iHPMC ayinabudlelwane buninzi. Umxholo ophantsi wecalcium wecalcium kunye nomlinganiselo weCaO, iCa(OH)2 kwi-calcium ash akufanelekanga, kuya kubangela ukuhla komgubo. Ukuba inento yokwenza neHPMC, ngoko ukugcinwa kwamanzi kweHPMC 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 olunyibilikayo emanzini abandayo lwe-HPMC luvela emva konyango lomphezulu we-glyoxal, emanzini abandayo lusasazeka ngokukhawuleza, kodwa alunyibiliki ngokwenene, i-viscosity inyuka, iyanyibilika. Uhlobo olunyibilikayo kubushushu aluzange luphathwe nge-glyoxal kumphezulu. Umthamo we-glyoxal mkhulu, ukusasazeka kuyakhawuleza, kodwa i-viscosity icotha, umthamo mncinci, ngokuchaseneyo.
14, i-hydroxypropyl methyl cellulose (HPMC) inevumba lokuba kwenzeka ntoni?
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?
UKUSETYENZISWA KWE-putty powder: imfuneko iphantsi, i-viscosity yi-100 lamawaka, kulungile, into ebalulekileyo kukugcina amanzi engcono. Ukusetyenziswa kwe-mortar: 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?
IHydroxypropyl Methyl Cellulose, isiNgesi: Isifinyezo seHydroxypropyl Methyl Cellulose: HPMC okanye igama elingelolakhe leMHPC: Hydroxypropyl Methyl Cellulose; Cellulose hydroxypropyl methyl ether; Cellulose hydroxypropyl Methyl ether Hypromellose, 2-hydroxypropylmethyl Cellulose ether. 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?
Umgubo wePutty wodonga lwangaphakathi: I-800KG yecalcium enzima kunye ne-150KG yecalcium engwevu (i-starch ether, uhlaza olucocekileyo, umhlaba we-peng, i-citric acid kunye ne-polyacrylamide zingongezwa ngokufanelekileyo)
Umgubo weputty wodonga lwangaphandle: isamente 350KG icalcium enzima 500KG isanti ye-quartz 150KG umgubo welatex 8-12kg i-cellulose ether 3KG i-starch ether 0.5kg ifayibha yomthi 2KG
19. Yintoni umahluko phakathi kwe-HPMC kunye ne-MC?
I-MC yi-methyl cellulose, umqhaphu ocociweyo emva konyango lwe-alkali, kunye ne-methane chloride njenge-etherification agent, ngokusebenzisa uthotho lweempendulo zokwenza i-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 inkulu, kwaye amandla afunekayo ngabasebenzi kwinkqubo yokusetyenziswa nawo makhulu, ngoko ke ipropati yokwakha ye-mortar ayilunganga. Kwiimveliso ze-cellulose ether, ukunamathela kwe-methyl cellulose kukwinqanaba eliphakathi.
I-HPMC ye-hydroxypropyl methyl cellulose, yenziwe ngekotoni ecociweyo emva konyango lwe-alkalization, kunye ne-propylene oxide kunye ne-chloromethane njenge-etherifying, ngokusebenzisa uthotho lweempendulo kwaye yenziwe nge-non-ionic cellulose mixed ether. Iqondo lokutshintshwa ngokubanzi liyi-1.2 ~ 2.0. Iimpawu zayo zichaphazeleka ngumlinganiselo womxholo 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.
Yintoni ekufuneka iqwalaselwe xa kusetyenzwa ngokoqobo ubudlelwane phakathi kwe-viscosity kunye nobushushu be-HPMC?
Ubunzima be-HPMC buhambelana nobushushu ngendlela echaseneyo, oko kukuthi, ubunzima buyanda xa ubushushu buhla. Xa sithetha ngobunzima bemveliso, sithetha isiphumo sokulinganisa isisombululo sayo samanzi se-2% kubushushu obungama-20 degrees Celsius.
Xa kusenziwa izinto ezibonakalayo, kwiindawo ezinomahluko omkhulu kubushushu phakathi kwehlobo nobusika, kufuneka kuqwalaselwe ingcebiso yokusebenzisa i-viscosity ephantsi ebusika, nto leyo elungele ukwakhiwa. Ngaphandle koko, xa ubushushu buphantsi, i-viscosity ye-cellulose iya kwanda, xa ikrwelwa, imvakalelo iya kuba nzima.
I-viscosity ephakathi: 75000-100000 isetyenziselwa ikakhulu i-putty
Isizathu: ukugcina amanzi kakuhle
I-viscosity ephezulu:150000-200000 isetyenziswa kakhulu kwi-polystyrene particles, i-thermal insulation mortar powder kunye nee-glass beads thermal insulation mortar.
Isizathu: i-viscosity ephezulu, i-mortar ayilula ukuyilahla, i-flow hanging, iphucula 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: Septemba-14-2022