Imibuzo emi-4 mayelana ne-HPMC

1. Yiziphi ukusetshenziswa okuyinhloko kwe-hydroxypropyl methylcellulose (HPMC)?
I-HPMC isetshenziswa kabanzi ezintweni zokwakha, okokugqoka, izinsalela zokwenziwa, izitsha zobumba, ezemithi, ukudla, izindwangu, ezolimo, izimonyo, ugwayi nezinye izimboni. I-HPMC ingahlukaniswa ngebanga lokwakha, ibanga lokudla kanye nebanga lezemithi ngokuya ngokusetshenziswa kwayo. Njengamanje, ukukhiqizwa okuningi kwasekhaya kwamaShayina kusezingeni lokwakha. Ezingeni lokwakha, i-putty powder isetshenziswa ngobuningi, cishe i-90% i-putty powder kanti enye isetshenziselwa udaka lukasimende kanye nokunamathela kwamathayela.

2. Yiziphi izimbangela ze-blistering ku-putty powder ngesikhathi sokusetshenziswa kwe-HPMC ku-putty powder?
I-HPMC isebenza njengokuqina, ukugcinwa kwamanzi nomakhi kuma-putty powders. Alibandakanyeki kunoma yikuphi ukusabela.

Izimbangela zamabhamuza: 1. Amanzi amaningi. 2. Ungqimba olungezansi alomile, vele usule ungqimba phezu koqweqwe olungaphezulu, olubuye lube namabhamuza kalula.

I-HPMC

3. Zingaki izinhlobo ze-hydroxypropyl methylcellulose (HPMC) ezikhona? Uyini umehluko phakathi kwabo?
I-HPMC ingahlukaniswa ibe yi-soluble esheshayo neshisayo. Imikhiqizo encibilikayo ngokushesha, ihlakazeke ngokushesha futhi inyamalale emanzini emanzini abandayo. Kuleli qophelo, uketshezi alunayo i-viscosity njengoba i-HPMC imane ihlakazeke emanzini futhi ingancibiliki. Ngemuva kwemizuzu emi-2, i-viscosity ye-liquid ikhula kancane kancane, yakha ijeli ecacile ye-viscous. Umkhiqizo oshisayo oncibilikayo ungahlakazeka ngokushesha emanzini ashisayo futhi unyamalale emanzini ashisayo. Njengoba izinga lokushisa lehlela ezingeni elithile lokushisa, i-viscosity ibonakala kancane kancane kuze kube yilapho kwakhiwa ijeli ecacile ye-viscous.

Uhlobo lwe-hot melt lungasetshenziswa kuphela kuma-putty powders nodaka. Ku-glues oketshezi namapende, i-caking iyenzeka futhi ayikwazi ukusetshenziswa. Uhlobo olusheshayo lunohlelo olubanzi lwezinhlelo zokusebenza futhi lungasetshenziswa kuma-putty powders nama-mortars kanye namaglue awuketshezi nopende.

4. Inganqunywa kanjani ikhwalithi ye-hydroxypropyl methylcellulose (HPMC) kalula nangokubonakalayo?
(1) Amandla adonsela phansi athile: Lapho iphezulu amandla adonsela phansi athile, iba ngcono nekhwalithi.
(2) Ubumhlophe: Imikhiqizo eminingi yekhwalithi inobumhlophe obuhle. Ngaphandle kwalabo abanama-ejenti amhlophe angeziwe. Ama-ejenti amhlophe angathinta ikhwalithi.
(3) Ukulunga: Uma kucoliseka, kuba ngcono nakakhulu. Ubuhle be-HPMC yethu kuvame ukuba yi-80 mesh kanye ne-100 mesh, i-120 mesh iyatholakala.
(4) Ukudlulisela: Faka i-HPMC emanzini ukuze wenze ijeli ebonisa ngale futhi ubheke ukudluliselwa kwayo. Uma ukudlulisa kukhulu, kuba nempahla engancibiliki kancane. Ama-reactor aqondile ngokuvamile anokudlulisela okungcono futhi ama-reactor avundlile awadluliseli kahle, kodwa lokhu akusho ukuthi izinga lokukhiqiza lama-reactor aqondile lingcono kunezinye izindlela zokukhiqiza. Kunezici eziningi ezinquma ikhwalithi yomkhiqizo kuma-reactors avundlile, anokuqukethwe okuphezulu kwe-hydroxypropyl kanye nokuqukethwe okuphezulu kwe-hydroxypropyl, okungcono kakhulu ekugcineni amanzi.