I-HPMC :HPMC 400 isetyenziswa kakhulu kwi-mortar yokuzilungisa, kodwa ngokubanzi ingeniswa kwamanye amazwe.
Isizathu: I-viscosity iphantsi, nangona ukugcinwa kwamanzi kuphantsi, kodwa i-leveling ilungile, kwaye uxinano lwe-mortar luphezulu.
Ubukhulu obuphakathi nobuphantsi:i-hydroxypropyl methylcelluloseI-HPMC 20000-40000 isetyenziswa kakhulu kwi-tile adhesive, i-caulking agent, i-anti-cracking mortar, i-thermal insulation bonding mortar, njl.
Isizathu: ukusebenza kakuhle, ukongezwa kwamanzi kancinci, ukuxinana okukhulu kwesamente.
1. Yintoni injongo ephambili ye-hydroxypropyl methylcellulose (HPMC)?
——A: I-HPMC isetyenziswa kakhulu kwizixhobo zokwakha, kwiingubo, kwiiresini zokwenziwa, kwiiseramikhi, kumayeza, ekutyeni, kwimpahla, kwezolimo, kwizinto zokuthambisa, kwicuba nakwamanye amashishini. I-HPMC inokwahlulwa ibe: umgangatho wokwakha, umgangatho wokutya kunye nomgangatho wamayeza ngokwenjongo. Okwangoku, uninzi lweemveliso zasekhaya zikumgangatho wokwakha. Kwinqanaba lokwakha, ubungakanani bomgubo we-putty bukhulu kakhulu, malunga ne-90% isetyenziselwa umgubo we-putty, kwaye okuseleyo kusetyenziselwa udoti wesamente kunye neglu.
2. Kukho iintlobo ezahlukeneyo ze-hydroxypropyl methylcellulose (HPMC), kwaye yintoni umahluko kwindlela ezisetyenziswa ngayo?
——Impendulo: I-HPMC inokwahlulwahlulwa ibe yi-instant type kunye ne-hot-melt type. Iimveliso ze-instant type ziyasasazeka ngokukhawuleza emanzini abandayo kwaye zinyamalale emanzini. Ngeli xesha, ulwelo aluna-viscosity, kuba i-HPMC isasazeka kuphela emanzini kwaye ayinakunyibilika ngokwenene. Emva kwemizuzu emi-2, i-viscosity yolwelo yanda kancinci kancinci, yenza i-colloid ebonakalayo ethambileyo. Iimveliso ezinyibilikisa ubushushu, xa zidibana namanzi abandayo, zinokusasazeka ngokukhawuleza emanzini ashushu, kwaye zinyamalale emanzini ashushu. Xa ubushushu buhla buye kubushushu obuthile (imveliso yenkampani yethu yi-65 degrees Celsius), i-viscosity ibonakala kancinci ide yenze i-viscous ebonakalayo ethambileyo. Uhlobo lwe-hot-melt lungasetyenziswa kuphela kwi-putty powder kunye ne-mortar. Kwi-liquid glue kunye nepeyinti, kuya kwenzeka into yokuxinana kwaye ayinakusetyenziswa. Uhlobo lwe-instant lunoluhlu olubanzi lwezicelo. Lungasetyenziswa kwi-putty powder kunye ne-mortar, kunye ne-liquid glue kunye nepeyinti, ngaphandle kokuchasana.
3. Ziziphi iindlela zokunyibilikisa i-hydroxypropyl methylcellulose (HPMC)?
——Impendulo: 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 zichazwa ngolu hlobo lulandelayo:
1) Faka amanzi ashushu afunekayo kwisitya uze uwafudumeze ukuya kuthi ga kwi-70°C. I-hydroxypropyl methylcellulose yongezwa kancinci kancinci ngokuxukuxa kancinci, ekuqaleni i-HPMC yadada phezu kwamanzi, yaza yakha i-slurry kancinci kancinci, eyapholiswa ngokuxukuxa.
2), yongeza i-1/3 okanye i-2/3 yobungakanani bamanzi obufunekayo kwisikhongozeli, uze uyifudumeze ukuya kuma-70 ° C, ngokwendlela ye-1), chitha i-HPMC, lungisa i-slurry yamanzi ashushu; uze wongeze amanzi abandayo aseleyo emanzini ashushu. Kwi-slurry, umxube upholiswe emva kokuxutywa.
Indlela yokuxuba umgubo: Xuba umgubo we-HPMC kunye nezinye izinto ezininzi ezinjengomgubo, xuba kakuhle ngomxube, uze wongeze amanzi ukuze unyibilike, emva koko i-HPMC inokunyibilika ngeli xesha ngaphandle kokudibana, kuba kukho i-HPMC encinci kuphela kwikona nganye encinci. Umgubo uya kunyibilika ngoko nangoko xa udibana namanzi. ——Le ndlela isetyenziswa ngabavelisi be-putty powder kunye ne-mortar. [I-Hydroxypropyl methylcellulose (HPMC) isetyenziswa njengesithambisi kunye ne-arhente yokugcina amanzi kwi-putty powder mortar.]
4. Ungawugweba njani umgangatho we-hydroxypropyl methylcellulose (HPMC) ngokulula nangokuqondakalayo?
——Impendulo: (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, uninzi lweemveliso ezilungileyo zinobumhlophe obuhle. (2) Ubumhlophe: Ubumhlophe be-HPMC ngokubanzi buyi-80 mesh kunye ne-100 mesh, kwaye i-120 mesh incinci. Uninzi lwe-HPMC eveliswa eHebei yi-80 mesh. Okukhona ubumhlophe buncinci, kokukhona bungcono. (3) Ukudluliselwa: Beka i-hydroxypropyl methylcellulose (HPMC) emanzini ukwenza i-colloid ecacileyo, kwaye ujonge ukudluliselwa kwayo. Okukhona ukudluliselwa kuphezulu, kokukhona kungcono, okubonisa ukuba kukho izinto ezinganyibilikiyo kangako kuyo. Ukungena kwe-reactor ethe nkqo ngokubanzi kulungile, kwaye i-reactor ethe tye imbi, kodwa akunakuthiwa umgangatho we-reactor ethe tye ungcono kunowe-reactor ethe tye, kwaye kukho izinto ezininzi ezimisela umgangatho wemveliso. (4) Ubumhlophe obuthile: okukhona ububunzima obukhulu, kokukhona ubunzima buya kuba ngcono. Ubunzima obuthile bukhulu, ngokubanzi kuba umxholo we-hydroxypropyl okuyo uphezulu, kwaye umxholo we-hydroxypropyl uphezulu, ukugcinwa kwamanzi kungcono.
5. Ubungakanani be-hydroxypropyl methylcellulose (HPMC) kumgubo we-putty?
——Impendulo: Ubungakanani be-HPMC obusetyenziswayo kwiindlela ezisebenzayo buyahluka 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, uninzi lwe-putty powder eBeijing yi-5 kg; uninzi lwe-putty powder eGuizhou yi-5 kg ehlotyeni kunye ne-4.5 kg ebusika;
6. Ithini i-viscosity efanelekileyo ye-hydroxypropyl methylcellulose (HPMC)?
——Impendulo: Umgubo wePutty ngokubanzi yi-100,000 yuan, kwaye umdaka ufuna kakhulu, kwaye kulula ukuwusebenzisa kwi-150,000 yuan. Ngaphezu koko, eyona ndima ibalulekileyo ye-HPMC kukugcina amanzi, kulandele ukuqina. Kwi-putty powder, lo gama nje ukugcinwa kwamanzi kulungile kwaye ubuninzi buphantsi (70,000-80,000), kunokwenzeka. Kakade ke, ubuninzi buphezulu, kwaye ukugcinwa kwamanzi kungcono. Xa ubuninzi budlula i-100,000, isiphumo sobuninzi buphezulu ekugcinweni kwamanzi asibi sikhulu kangako.
7. Ziziphi izalathisi eziphambili zobugcisa ze-hydroxypropyl methylcellulose (HPMC)?
——Impendulo: Ubungakanani be-hydroxypropyl kunye ne-viscosity, uninzi lwabasebenzisi lukhathalele ezi mpawu zimbini. Okukhona umxholo we-hydroxypropyl uphezulu, kokukhona ukugcinwa kwamanzi kuphezulu. I-viscosity ephezulu, ukugcinwa kwamanzi, ngcono kakhulu (kunokuba yinto epheleleyo), kunye ne-viscosity ephezulu, ukusetyenziswa ngcono kwi-samente mortar.
8. Zeziphi izinto eziphambili ze-hydroxypropyl methylcellulose (HPMC)?
—— A: Izinto eziphambili ze-hydroxypropyl methylcellulose (HPMC): umqhaphu ocoliweyo, i-methyl chloride, i-propylene oxide, ezinye izinto ezikrwada ziquka i-flake alkali, i-asidi, i-toluene, i-isopropanol, njl.
9. Yintoni indima ephambili ye-HPMC ekusetyenzisweni komgubo we-putty, kwaye ngaba ikho na ikhemistri?
——Impendulo: I-HPMC inemisebenzi emithathu yokutyeba, ukugcinwa kwamanzi kunye nokwakhiwa kwi-putty powder. Ukutyeba: I-Cellulose ingenziwa ibe nkulu ukuze imiswe, igcine isisombululo sifana kwaye sihambelana, kwaye imelane nokugoba. Ukugcinwa kwamanzi: Yenza i-putty powder yome kancinci, kwaye incede ukusabela kwe-calcium yomlotha phantsi kwesenzo samanzi. Ukwakhiwa: I-Cellulose inefuthe lokuthambisa, elinokwenza i-putty powder isebenze kakuhle. I-HPMC ayithathi nxaxheba kuyo nayiphi na i-chemical reaction kwaye idlala indima yokuncedisa kuphela. Ukongeza amanzi kwi-putty powder kwaye uyibeke eludongeni yi-chemical reaction. Ngenxa yokwenziwa kwezinto ezintsha, thabatha i-putty powder eludongeni eludongeni, uyigaye ibe yi-powder, kwaye uyisebenzise kwakhona. Ayizukusebenza, kuba izinto ezintsha (i-calcium carbonate) zenziwe. ) phezulu. 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 kwaye inceda ukusabela okungcono kwe-ash calcium, kwaye ayithathi nxaxheba kuyo nayiphi na impendulo ngokwayo.
10. I-HPMC yi-non-ionic cellulose ether, ngoko ke yintoni i-non-ionic?
- Impendulo: Ngokwendlela eqhelekileyo, ii-non-ions zizinto ezingayiyo i-ion emanzini. I-ionization ibhekisa kwinkqubo apho i-electrolyte idityaniswe khona ibe zii-ion ezitshajiweyo ezihamba ngokukhululekileyo kwisinyibilikisi esithile (njengamanzi, utywala). Umzekelo, i-sodium chloride (NaCl), ityuwa etyiwayo yonke imihla, iyanyibilika emanzini kwaye i-ionized ukuvelisa ii-ion ze-sodium ezihamba ngokukhululekileyo (Na+) ezitshajiweyo kakuhle kunye nee-ion ze-chloride (Cl) ezitshajiweyo kakubi. Oko kukuthi, xa i-HPMC ifakwa emanzini, ayihlukani ibe zii-ion ezitshajiweyo, kodwa ikhona ngendlela yee-molecule.
Ixesha lokuthumela: Okthobha-17-2022