Yintoni umahluko HPMC kunye okanye ngaphandle S?

1. I-HPMC yahlulwe ngokohlobo olukhawulezileyo kunye nohlobo lokusasazwa ngokukhawuleza

Uhlobo lwe-HPMC lokusasazwa ngokukhawuleza lufakwe unobumba S, kwaye i-glyoxal kufuneka yongezwe ngexesha lenkqubo yemveliso.

Uhlobo olukhawulezileyo lwe-HPMC alongezi naziphi na iileta, ezinje ngo “100000″ uthetha “100000 viscosity fast dispersion type HPMC”.

2. Ngaphandle okanye ngaphandle kwe-S, iimpawu zihlukile

I-HPMC esasazeke ngokukhawuleza isasazeka ngokukhawuleza xa idibana namanzi abandayo kwaye ilahleka emanzini.Ngeli xesha, i-liquid ayinayo i-viscosity, kuba i-HPMC ihlakazekile kuphela emanzini ngaphandle kokuchithwa kwangempela.Emva kwemizuzu emibini, i-viscosity yolwelo ikhula ngokuthe ngcembe, isenza i-viscous ecacileyo ye-colloid.

I-HPMC ekhawulezileyo inokusasazwa ngokukhawuleza emanzini ashushu malunga nama-70°C.Xa ubushushu buhla kwiqondo elithile lobushushu, i-viscosity iya kubonakala ngokukhawuleza de i-viscous colloid ecacileyo yenziwe.

3. Nge okanye ngaphandle kwe-S, injongo yahlukile

I-HPMC ekhawulezileyo ingasetyenziswa kuphela kwi-putty powder kunye nodaka.Kwiglue yolwelo, ipeyinti kunye neemveliso zokuhlamba, kuya kubakho i-grouping phenomenon kwaye ayinakusetyenziswa.

I-HPMC esasazeke ngokukhawuleza inoluhlu olubanzi lwezicelo kwaye ingasetyenziswa kwi-putty powder, udaka, iglue elulwelo, ipeyinti, kunye neemveliso zokuhlamba ngaphandle kokuchasana.

Indlela yokunyibilika

1. Thatha umlinganiselo ofunekayo wamanzi atshisayo, uyifake kwisitya kwaye uyitshise ngaphezu kwe-80 ° C, kwaye ngokuthe ngcembe udibanise le mveliso phantsi kokuvuselela ngokukhawuleza.I-cellulose idada kumphezulu wamanzi ekuqaleni, kodwa ngokuthe ngcembe isasazwa ukwenza udaka olufanayo.Isisombululo sapholiswa ngelixa sishukumisa.

2. Ngaphandle koko, ukutshisa i-1/3 okanye i-2/3 yamanzi ashushu ukuya ngaphezu kwe-85 ° C, yongeza i-cellulose ukuze ufumane i-slurry yamanzi ashushu, uze ungeze inani eliseleyo lamanzi abandayo, qhubeka uvuselela, kwaye upholise umxube obangelwayo.

3. I-mesh ye-cellulose ilungile, kwaye ikhona njengamaqhekeza amancinci amancinci kwi-powder edibeneyo, kwaye iyancibilika ngokukhawuleza xa idibana namanzi ukwenza i-viscosity efunekayo.

4. Kancinci kwaye udibanise i-cellulose kwiqondo lokushisa, uqhube ngokuqhubekayo de kube isisombululo esicacileyo senziwe.

Ziziphi izinto ezichaphazela ukugcinwa kwamanzi kwi-hydroxypropyl methylcellulose?

Ukugcinwa kwamanzi kwe-hydroxypropyl methylcellulose HPMC imveliso ngokwayo ihlala ichatshazelwa zezi zinto zilandelayo:

1. Ukufana kwe-cellulose ether HPMC

I-HPMC esabela ngokulinganayo, i-methoxyl kunye ne-hydroxypropoxyl zisasazwa ngokulinganayo, kwaye izinga lokugcinwa kwamanzi liphezulu.

2. Ubushushu be-Thermal gelation ye-cellulose ether HPMC

Ukuphakama kobushushu bejeli ye-thermal, kuphezulu izinga lokugcinwa kwamanzi;kungenjalo, isantya esezantsi yokugcina amanzi.

3. Iselulosi ether HPMC viscosity

Xa i-viscosity ye-HPMC inyuka, izinga lokugcinwa kwamanzi liyenyuka;xa i-viscosity ifikelela kwinqanaba elithile, ukunyuka kwesantya sokugcinwa kwamanzi kudla ukuba kucaba.

Isixa esongezelelweyo se-cellulose ether HPMC

Okukhona ubuninzi be-cellulose ether HPMC eyongeziweyo, iphezulu izinga lokugcinwa kwamanzi kwaye ngcono isiphumo sokugcina amanzi.

Kuluhlu lwe-0.25-0.6% yokongezwa, izinga lokugcinwa kwamanzi landa ngokukhawuleza ngokunyuka kwexabiso elongezelelweyo;xa isixa-mali esongeziweyo sinyuka ngakumbi, ukunyuka kwezinga lokugcinwa kwamanzi kuyehla.