Hanyar rushewar Hydroxypropyl methylcellulose HPMC

Hydroxypropyl methylcellulose, wanda kuma aka sani da HPMC, shine nonionic cellulose ether wanda aka samo daga auduga mai ladabi, kayan polymer na halitta, ta hanyar tsarin sinadarai. Fari ne ko launin rawaya mai ɗanɗano wanda ke saurin narkewa cikin ruwa. Bari muyi magana game da hanyar rushewar hydroxypropyl methylcellulose.

1. Hydroxypropyl methylcellulose ne yafi amfani a matsayin ƙari ga putty foda, turmi da kuma manne. Ƙara zuwa turmi siminti, ana iya amfani da shi azaman wakili mai riƙe da ruwa da retardant don ƙara yawan famfo; ƙara zuwa putty foda da manne, ana iya amfani dashi azaman ɗaure. Domin inganta yadawa da tsawaita lokacin aiki, mun ɗauki Qingquan Cellulose a matsayin misali don bayyana hanyar rushewar hydroxypropyl methylcellulose.

2. An fara motsa hydroxypropyl methylcellulose na al'ada kuma an yayyafa shi da ruwan zafi, sa'an nan kuma ƙara da ruwan sanyi, motsawa kuma a sanyaya don narkewa;

Musamman: Ɗauki 1 / 5-1 / 3 na adadin da ake buƙata na ruwan zafi, motsawa har sai samfurin da aka kara ya kumbura gaba daya, sannan a ƙara sauran ɓangaren ruwan zafi, wanda zai iya zama ruwan sanyi ko ma ruwan ƙanƙara, sannan a motsa. zafin da ya dace (10 ° C) har sai an narkar da shi gaba daya.

3. Hanyar jika da sauran ƙarfi:

A watsa hydroxypropyl methylcellulose a cikin wani kaushi na halitta ko kuma a jika shi da wani kaushi na halitta, sannan a ƙara ko ƙara ruwan sanyi don narkar da shi da kyau. Maganin kwayoyin halitta na iya zama ethanol, ethylene glycol, da dai sauransu.

4. Idan agglomeration ko wrapping faruwa a lokacin narkar da, shi ne saboda stirring bai isa ba ko talakawa model an kara kai tsaye zuwa ruwan sanyi. A wannan gaba, motsawa da sauri.

5. Idan an haifar da kumfa a lokacin rushewa, ana iya barin su tsawon sa'o'i 2-12 (ƙayyadaddun lokaci ya dogara da daidaito na maganin) ko cirewa ta hanyar vacuuming, pressurizing, da dai sauransu, ko ƙara adadin da ya dace na defoaming wakili.

Matakan kariya

Hydroxypropyl methylcellulose an raba shi zuwa jinkirin narkewa da nau'ikan narkarwar nan take. Ana iya narkar da hydroxypropyl methylcellulose nan take cikin ruwan sanyi.