Ukusetshenziswa okuyinhloko kwe-hydroxypropyl methylcellulose

1. Iyini ukusetshenziswa okuyinhloko kwe-hydroxypropyl methylcellulose (HPMC)?

I-HPMC isetshenziswa kabanzi ezintweni zokwakha, ezinengilazi, izinsalela zokwenziwa, izitsha zobumba, imithi, ukudla, izindwangu, ezolimo, izimonyo, ugwayi nezinye izimboni.I-HPMC ingahlukaniswa ngebanga lokwakha, ibanga lokudla kanye nebanga lezemithi ngokwenhloso.Njengamanje, iningi lemikhiqizo yasekhaya isezingeni lokwakha.Ebangeni lokwakha, i-putty powder isetshenziswa ngenani elikhulu, cishe i-90% isetshenziselwa i-putty powder, kanti enye isetshenziselwa udaka lukasimende neglue.

2. Kunezinhlobo ezimbalwa ze-hydroxypropyl methylcellulose (HPMC), futhi yimuphi umehluko ekusetshenzisweni kwazo?

I-HPMC ingahlukaniswa ngohlobo olusheshayo kanye nohlobo lokuqedwa okushisayo.Umkhiqizo wohlobo olusheshayo uhlakazeka ngokushesha emanzini abandayo bese unyamalala emanzini.Ngalesi sikhathi, uketshezi alunayo i-viscosity ngoba i-HPMC ihlakazekile emanzini ngaphandle kokuhlakazeka kwangempela.Cishe imizuzu emi-2, i-viscosity yoketshezi iyanda kancane kancane, yakha i-viscous colloid esobala.Imikhiqizo encibilikayo eshisayo, lapho ihlangene namanzi abandayo, ingahlakazeka ngokushesha emanzini ashisayo futhi inyamalale emanzini ashisayo.Lapho izinga lokushisa lehlela ezingeni elithile lokushisa, i-viscosity izovela kancane kancane ize yakhe i-viscous colloid ebonakalayo.Uhlobo lwe-hot-melt lungasetshenziswa kuphela ku-putty powder nodaka.Ku-glue ewuketshezi nopende, kuzoba khona umcimbi wokuqoqa futhi awukwazi ukusetshenziswa.Uhlobo olusheshayo lunohlu olubanzi lwezinhlelo zokusebenza.Ingasetshenziswa ku-putty powder nodaka, kanye ne-glue ewuketshezi nopende, ngaphandle kokuphikisana.

3. Yiziphi izindlela zokuchithwa kwe-hydroxypropyl methylcellulose (HPMC)?

Indlela yokuchithwa kwamanzi ashisayo: Njengoba i-HPMC ingancibiliki emanzini ashisayo, i-HPMC ingahlakazwa ngokulinganayo emanzini ashisayo esigabeni sokuqala, bese incibilika ngokushesha lapho isipholile.Izindlela ezimbili ezijwayelekile zichazwa kanje:

1) Faka inani elidingekayo lamanzi ashisayo esitsheni bese ushisa kuze kufike ku-70°C.I-hydroxypropyl methylcellulose yengezwa kancane kancane ngaphansi kokunyakaziswa kancane, ekuqaleni i-HPMC yantanta phezu kwamanzi, bese kancane kancane yakha i-slurry, eyapholiswa ngaphansi kokunyakaziswa.

2), engeza i-1/3 noma i-2/3 yenani elidingekayo lamanzi esitsheni, bese ushisisa ku-70 ° C, uhlakaze i-HPMC ngokwendlela ye-1), futhi ulungise udaka lwamanzi ashisayo;bese ufaka inani elisele lamanzi abandayo emanzini ashisayo ashisayo, ingxube ipholile ngemva kokugqugquzela.

Indlela yokuxuba uphuphu: hlanganisa i-HPMC powder nenani elikhulu lezinye izinto eziyimpuphu, xuba kahle ne-mixer, bese ufaka amanzi ukuze uncibilike, khona-ke i-HPMC ingancibilika ngalesi sikhathi ngaphandle kokuhlanganiswa, ngoba kune-HPMC encane kuphela kuwo wonke amancanyana. I-corner Powder, izoncibilika ngokushesha lapho ihlangana namanzi.——Abakhiqizi bempuphu nodaka basebenzisa le ndlela.[I-Hydroxypropyl methylcellulose (HPMC) isetshenziswa njenge-thickener kanye ne-ejenti yokugcina amanzi kudaka lwe-putty powder.]

4. Indlela yokwahlulela ikhwalithi ye-hydroxypropyl methylcellulose (HPMC) kalula nangendlela enembile?

(1) Ubumhlophe: Nakuba ubumhlophe bungakwazi ukunquma ukuthi i-HPMC kulula ukuyisebenzisa yini, futhi uma ama-ejenti amhlophe engezwa phakathi nenqubo yokukhiqiza, izothinta ikhwalithi yayo.Nokho, iningi lemikhiqizo emihle inobumhlophe obuhle.

(2) Ubuhle: Ubucwebe be-HPMC ngokuvamile buba ne-80 mesh kanye ne-100 mesh, kanye ne-120 mesh mincane.Iningi le-HPMC elikhiqizwe e-Hebei linezikhala ezingama-80.Ubuhle obuhle, uma sikhuluma nje, kuba ngcono.

(3) Ukudlulisa ukukhanya: faka i-hydroxypropyl methylcellulose (HPMC) emanzini ukuze wenze i-colloid ekhanyelayo, bese ubheka ukudlulisa ukukhanya kwayo.Ukudlulisa ukukhanya okukhulu, kungcono, okubonisa ukuthi kukhona okuncane okungancibiliki kuwo..Ukungeneka kwama-reactor aqondile ngokuvamile kuhle, futhi lokho kwama-reactor avundlile kubi kakhulu, kodwa akusho ukuthi ikhwalithi yama-reactor aqondile ingcono kunaleyo yama-reactor avundlile, futhi ikhwalithi yomkhiqizo inqunywa izici eziningi.

(4) Amandla adonsela phansi athize: Uma umkhulu amandla adonsela phansi athile, uyasinda kakhulu.Ukucaciswa kukhulu, ngokuvamile ngoba okuqukethwe kweqembu le-hydroxypropyl kulo kuphezulu, futhi okuqukethwe kweqembu le-hydroxypropyl kuphezulu, ukugcinwa kwamanzi kungcono.