1. Kunezinhlobo ezimbalwa ze-hydroxypropyl methylcellulose HPMC, futhi yini umehluko phakathi kokusetshenziswa kwazo?
Impendulo: I-Hydroxypropyl methylcellulose HPMC ingahlukaniswa ngohlobo olusheshayo kanye nohlobo lwe-hot-melt.Imikhiqizo yohlobo olusheshayo ihlakazeka ngokushesha emanzini abandayo bese inyamalala emanzini.Ngalesi sikhathi, uketshezi alunayo i-viscosity, ngoba i-HPMC ihlakazekile emanzini kuphela, akukho ukuncibilika kwangempela.Ngemuva kwemizuzu emi-2, i-viscosity yoketshezi yanda kancane kancane, yakha i-viscous colloid esobala.Imikhiqizo encibilikayo eshisayo, lapho ihlangana namanzi abandayo, ingahlakazeka ngokushesha emanzini ashisayo futhi inyamalale emanzini ashisayo.Lapho izinga lokushisa lehla lifinyelela ezingeni elithile lokushisa, i-viscosity ibonakala kancane kuze kube yilapho kwakheka i-viscous colloid esobala.Uhlobo lwe-hot-melt lungasetshenziswa kuphela ku-putty powder nodaka.Ku-glue ewuketshezi nopende, i-clumping phenomenon izokwenzeka futhi ayikwazi ukusetshenziswa.Uhlobo olusheshayo lunohlu olubanzi lwezinhlelo zokusebenza.Ingasetshenziswa ku-putty powder nodaka, kanye ne-glue ewuketshezi nopende, ngaphandle kokuphikisana.
2. Iyini inhloso enkulu ye-hydroxypropyl methylcellulose (HPMC)?
A: I-HPMC isetshenziswa kabanzi ezintweni zokwakha, okokuhlanganisa, ama-synthetic resin, izitsha zobumba, imithi, ukudla, izindwangu, ezolimo, izimonyo, ugwayi nezinye izimboni.I-HPMC ingahlukaniswa: Ibanga lokwakha, ibanga lokudla kanye nebanga lezemithi ngokwenhloso.Njengamanje, iningi lemikhiqizo yasekhaya isezingeni lokwakha.Ebangeni lokwakha, inani le-putty powder likhulu kakhulu, cishe i-90% isetshenziselwa i-putty powder, kanti enye isetshenziselwa udaka lukasimende neglue.
3. Yiziphi izindlela zokuncibilika ze-hydroxypropyl methylcellulose HPMC?
Impendulo: Indlela yokuchithwa kwamanzi ashisayo: Njengoba i-HPMC ingancibilikisiwe emanzini ashisayo, i-HPMC ingahlakazwa ngokufanayo emanzini ashisayo esigabeni sokuqala, bese ihlakazwa ngokushesha lapho isipholile.Izindlela ezimbili ezijwayelekile zichazwa kanje:
1), engeza i-1/3 noma i-2/3 yenani elidingekayo lamanzi esitsheni, futhi uyishise ibe ngu-70 ° C, ngokwendlela ye-1), uhlakaze i-HPMC, ulungise amanzi ashisayo slurry;bese ufaka inani elisele lamanzi abandayo emanzini ashisayo Ku-slurry, ingxube ipholile ngemva kokugqugquzela.
Indlela yokuxuba umpuphu: Xuba i-HPMC powder nenani elikhulu lezinye izinto eziyimpuphu, xuba kahle ne-mixer, bese ufaka amanzi ukuze uncibilike, bese i-HPMC ingancibilika ngalesi sikhathi ngaphandle kokuhlangana ndawonye, ngoba kune-HPMC encane kuphela kuzo zonke. ikona elincane elincane.I-powder izoncibilika ngokushesha lapho ihlangana namanzi.——Le ndlela isetshenziswa abakhiqizi be-putty powder kanye nodaka.[I-Hydroxypropyl methylcellulose (HPMC) isetshenziswa njenge-thickener kanye ne-ejenti egcina amanzi ku-putty powder mortar.
2), faka inani elidingekayo lamanzi ashisayo esitsheni, bese ushisa kuze kufike ku-70 ℃.I-hydroxypropyl methylcellulose yengezwa kancane kancane ngokunyakaziswa kancane, ekuqaleni i-HPMC yantanta phezu kwamanzi, bese kancane kancane yakha udaka, olwapholiswa ngokushukumisa.
4. Indlela yokwahlulela ikhwalithi ye-hydroxypropyl methylcellulose (HPMC) kalula nangendlela enembile?
Impendulo: (1) Amandla adonsela phansi aqondile: uma mkhulu amandla adonsela phansi athile, esindayo angcono kakhulu.ezinkulu, ngokuvamile ngoba
(2) Ubumhlophe: Nakuba ubumhlophe bunganqumi ukuthi i-HPMC kulula ukuyisebenzisa yini, futhi uma i-ejenti emhlophe yengezwa kunqubo yokukhiqiza, izothinta ikhwalithi yayo.Nokho, iningi lemikhiqizo emihle inobumhlophe obuhle.
(3) Ubuhle: Ubucwebe be-HPMC ngokuvamile buba yi-80 mesh kanye ne-100 mesh, kanye ne-120 mesh mincane.Iningi le-HPMC elikhiqizwe e-Hebei linezikhala ezingama-80.Ubuhle obuhle, bungcono ngokujwayelekile.
(4) Ukudluliselwa: Faka i-hydroxypropyl methylcellulose (HPMC) emanzini ukuze wenze i-colloid esobala, futhi uhlole ukudluliswa kwayo.Uma ukudluliselwa kuphezulu, kungcono, okubonisa ukuthi kunezinto ezincane ezingancibiliki ku-.Ukungeneka kwama-reactor aqondile ngokuvamile kuhle, futhi lokho kwama-reactor avundlile kubi kakhulu, kodwa ngeke kushiwo ukuthi ikhwalithi yama-reactor aqondile ingcono kunaleyo yama-reactor avundlile, futhi kunezici eziningi ezinquma ikhwalithi yemikhiqizo.Okuqukethwe kwe-hydroxypropyl kuyo kuphezulu, futhi okuqukethwe kwe-hydroxypropyl kuphezulu, ukugcinwa kwamanzi kungcono.
5. Yiziphi izinkomba zobuchwepheshe eziyinhloko ze-hydroxypropyl methylcellulose (HPMC)?
Impendulo: Okuqukethwe kwe-Hydroxypropyl kanye ne-viscosity, abasebenzisi abaningi banendaba nalezi zinkomba ezimbili.Ukuphakama kokuqukethwe kwe-hydroxypropyl, kuba ngcono ukugcinwa kwamanzi.Viscous, ukubamba amanzi, ngokuqhathaniswa (esikhundleni sokuthi
6. Iyiphi i-viscosity efanele ye-hydroxypropyl methylcellulose (HPMC)?
Impendulo: I-putty powder ngokuvamile i-yuan engu-100,000, futhi udaka ludinga kakhulu, futhi kulula ukuyisebenzisa ku-yuan engu-150,000.Ngaphezu kwalokho, indima ebaluleke kakhulu ye-HPMC ukugcina amanzi, okulandelwa ukujiya.Ku-putty powder, inqobo nje uma ukugcinwa kwamanzi kuhle futhi i-viscosity iphansi (70,000-80,000), kungenzeka futhi.Yiqiniso, uma i-viscosity iphakeme, ukugcinwa kwamanzi okuhlobene kungcono.Lapho i-viscosity idlula i-100,000, umphumela we-viscosity ekugcinweni kwamanzi awuningi.Ngokuphelele) futhi kungcono, futhi i-viscosity iphezulu, futhi kungcono ukuyisebenzisa odakeni lukasimende.
7. Yiziphi izinto zokusetshenziswa eziyinhloko ze-hydroxypropyl methylcellulose (HPMC)?
Impendulo: Izinto zokusetshenziswa eziyinhloko ze-hydroxypropyl methylcellulose (HPMC): ukotini ocolile, i-methyl chloride, i-propylene oxide, ezinye izinto zokusetshenziswa zihlanganisa i-flake alkali, i-asidi, i-toluene, i-isopropanol, njll.
Isikhathi sokuthumela: Feb-05-2024