Uyini umehluko phakathi kwe-HPMC nge noma ngaphandle s?

1. I-HPMC ihlukaniswe ngohlobo olusheshayo nohlobo lokuhlakazeka okusheshayo.

Uhlobo lwe-HPMC Rapid Dispacerion lunezinhlamvu njengezinhlamvu njengezinhlamvu. I-GYLOXAL kufanele ingezwe ngesikhathi sokukhiqiza.

Uhlobo lwe-HPMC olusheshayo oludelelayo alufaki noma yiziphi izinhlamvu, ezifana ne- "100000" zisho ukuthi "i-100000 vitcosity ehlakazayo i-HPMC".

2. Nge noma ngaphandle s, izici zihlukile

Ukusabalalisa ngokushesha i-HPMC ehlakazeka ngokushesha emanzini abandayo futhi inyamalala emanzini. Uketshezi alunakubonakala ngalesi sikhathi ngoba i-HPMC ihlakazeka emanzini kuphela futhi ayichithwa ngempela. Ngemuva kwemizuzu engaba mibili, i-viscosity yoketshezi inyuka kancane kancane, yakha uketshezi olusobala lwe-viscous. Colloid obukhulu.

I-HPMC esheshayo ingahlakazeka ngokushesha emanzini ashisayo cishe ngo-70 ° C. Lapho amazinga okushisa ehla emazingeni okushisa athile, i-viscosity avele kancane kuze kube kwakhiwa i-colloid esobala.

3. Nge noma ngaphandle s, inhloso yehlukile

I-HPMC esheshayo ingasetshenziswa kuphela ku-putty powder nodaka. Ku-liquid glues, upende kanye nokuhlanza izinto, ama-clumps kungenzeka avele angasebenziseki.

I-HPMC esakaza ngokushesha inezinhlobonhlobo zezicelo. Ingasetshenziselwa i-putty powder, udaka, i-glue key, ukupenda nokuhlanza izinto ngaphandle kokuphikiswa.

indlela yokuchithwa

1. Thatha inani elidingekayo lamanzi ashisayo, ulifake esitsheni bese usishisa ngenhla kwe-80 ℃, bese ubeka kancane kancane lo mkhiqizo ngokuvusa kancane. I-cellulose intanta endaweni yamanzi ekuqaleni, kepha kancane kancane isabalalisa ukwakha i-slurry efanayo. Pholisa ikhambi ngenkathi uvusa.

2. Noma ukushisa 1/3 noma 2/3 kwamanzi ashisayo kungaphezulu kwama-85 ° C, engeza i-cellulose ukuthola i-slurry yamanzi eshisayo, bese ufaka inani elisele lamanzi abandayo, uvuse ngokuqhubekayo, futhi upholise inhlanganisela ephumelelayo.

I-3. I-cellulose inosayizi omuhle we-mesh usayizi futhi ikhona njengezinhlayiya ezincane ezizodwa ku-powder evuselelwa ngokufanayo. Incibilikisa ngokushesha lapho ivezwa ngamanzi ukwakha i-viscosity edingekayo.

4. Ngeza i-cellulose kancane futhi ngokulinganayo emazingeni okushisa asekamelweni, ivuse ngokuqhubekayo kuze kube yilapho isixazululo esicacile size sizuze.

Iziphi izici ezithinta ukugcinwa kwamanzi kwe-hydroxypropylylyll methylcellulose?

Ukugcinwa kwamanzi kwemikhiqizo ye-hydroxypropyllylylylyly hpmc ngokwayo kuvame ukuthintwa yizinto ezilandelayo:

1. I-homogeneity of cellulose ether hpmc

Amaqembu asabela ngendlela efanayo ne-HPMC Methoxy kanye ne-Hydroxypropopoxy asatshalaliswa ngokulinganayo futhi anokugcinwa kwamanzi okuphezulu.

2. I-cellulose ether hpmc Thermal gel lokushisa le-gel

Ukushisa okuphezulu kwe-gel ye-thermal ethwala, kukhuphuka inani lokugcinwa kwamanzi; Ngakolunye uhlangothi, kwehlisa izinga lokugcina amanzi.

3. Ukuvunywa kwe-cellulose ether hpmc

Lapho i-viscosity ye-HPMC inyuka, inani lokugcina amanzi liyanda; Lapho i-viscosity ifinyelela ezingeni elithile, ukwanda kwamazinga okugcina amanzi kuvame ukuba mnene.

Inani lezengezo le-cellulose ether hpmc

Lapho inani elikhulu kakhulu le-cellulose ether hpmc elingezwe, liphezulu inani lokugcina amanzi kanye ne-NEP ENDLELA YOKUQHAWULA KWAMANZI.

Ebangeni le-0.25-0.6%, inani lokugcina amanzi likhuphuka ngokushesha njengoba imali yokungezwa inyuka; Lapho inani lokungeza liyanda, ukukhuphuka kwenani lokugcinwa kwamanzi lincibilika.