IHydroxypropyl methylcellulose, eyaziwa nangokuthi i-HPMC, i-nonionic cellulose ether etholakala kukotini ocolisisiwe, into engokwemvelo ye-polymer, ngochungechunge lwezinqubo zamakhemikhali.Impushana emhlophe noma ephuzi kancane encibilika kalula emanzini.Ake sikhulume ngendlela yokuchithwa kwe-hydroxypropyl methylcellulose.
1. I-Hydroxypropyl methylcellulose isetshenziswa kakhulu njengesithako se-putty powder, i-mortar kanye neglue.Yengezwe odakeni lukasimende, ingasetshenziswa njenge-ejenti yokugcina amanzi kanye ne-retardant ukwandisa ukudonsa;ingezwe ku-putty powder kanye ne-glue, ingasetshenziswa njenge-binder.Ukuze kuthuthukiswe ukusabalala nokwandisa isikhathi sokusebenza, sithatha i-Qingquan Cellulose njengesibonelo ukuchaza indlela yokuchithwa kwe-hydroxypropyl methylcellulose.
2. I-Hydroxypropyl methylcellulose evamile iqala inyakaziswa futhi ihlakazwe ngamanzi ashisayo, bese yengezwa ngamanzi abandayo, igoqwe futhi ipholiswe ukuze incibilike;
Ngokuqondile: thatha i-1/5-1/3 yenani elidingekayo lamanzi ashisayo, ugovuze kuze kube yilapho umkhiqizo owengeziwe uvuvukala ngokuphelele, bese ufaka ingxenye esele yamanzi ashisayo, okungaba amanzi abandayo noma iqhwa, bese ugoqa izinga lokushisa elifanele (10°C) lize lincibilike ngokuphelele.
3. Indlela yokumanzisa i-solvent ye-organic:
Hlakaza i-hydroxypropyl methylcellulose kusincibilikisi esiphilayo noma usimanzise ngesixazululi semvelo, bese wengeza noma wengeze amanzi abandayo ukuze uwancibilikise kahle.I-solvent ye-organic ingaba i-ethanol, i-ethylene glycol, njll.
4. Uma i-agglomeration noma ukugoqa kwenzeka ngesikhathi sokuchithwa, kungenxa yokuthi ukugoqa akwanele noma imodeli evamile yengezwa ngokuqondile emanzini abandayo.Kuleli qophelo, gxuma ngokushesha.
5. Uma ama-bubbles ekhiqizwa ngesikhathi sokuchithwa, angashiywa amahora angu-2-12 (isikhathi esiqondile sincike ekuhambisaneni kwesisombululo) noma asuswe ngokukhipha, ukucindezela, njll, noma ukwengeza inani elifanele le-ejenti yokukhipha amagwebu.
Izinyathelo zokuzivikela
IHydroxypropyl methylcellulose ihlukaniswe yaba izinhlobo ezincibilika kancane kanye nezincibilika ngokushesha.I-hydroxypropyl methylcellulose esheshayo ingancibilika ngokuqondile emanzini abandayo.
Isikhathi sokuthumela: Feb-06-2024