Indlela yokuchithwa kwe-hydroxypropyl methylcellulose (HPMC)

Indlela yokuchithwa kwe-hydroxypropyl methylcellulose (HPMC)

IHydroxypropyl methylcellulose (HPMC) isetyenziswa kakhulu kwizinto zokwakha, iingubo, iintlaka zokwenziwa, iiseramikhi, amayeza, ukutya, amalaphu, ezolimo, izithambiso, icuba kunye namanye amashishini. I-Hydroxypropyl methylcellulose (HPMC) yi-ether ye-cellulose engeyiyo ionic eyenziwe kwi-cellulose yezinto ze-polymer yendalo ngokusebenzisa uchungechunge lweenkqubo zemichiza. I-Hydroxypropylmethylcellulose (HPMC) yimpuphu emhlophe engenavumba, engenancasa, engenatyhefu enokuthi inyibilikiswe emanzini abandayo ukuze yenze isisombululo se-viscous esicacileyo. Ineempawu zokuqina, ukubopha, ukusabalalisa, i-emulsifying, ifilimu-ifom, ukumisa, i-adsorbing, i-gelling, i-surface esebenzayo, ukugcina umswakama kunye nokukhusela i-colloid.

Indlela yokuphelisa i-hydroxypropyl methylcellulose (HPMC):

Le mveliso iyadumba kwaye isasazeke kumanzi ashushu angaphezu kwama-85 ° C, kwaye idla ngokunyibilikiswa ngezi ndlela zilandelayo:

1. Thatha i-1/3 yomthamo ofunekayo wamanzi ashushu, ugxobhoze ukunyibilikisa ngokupheleleyo imveliso eyongeziweyo, kwaye emva koko wongeze amanye amanzi ashushu, anokuba ngamanzi abandayo, okanye amanzi omkhenkce, kwaye ugxobhoze kude kube ngubushushu obufanelekileyo (20). °C), emva koko iya kunyibilika ngokupheleleyo. i

2. Ukudibanisa okomileyo kunye nokuxuba:

Kwimeko yokuxuba kunye nezinye iipowder, kufuneka zixutywe ngokupheleleyo kunye neepowders ngaphambi kokuba ungeze amanzi, ngoko unokuchithwa ngokukhawuleza ngaphandle kwe-agglomeration. i

3. Indlela yokumanzisa isinyibilikisi se-organic:

Qala usasaze imveliso kwi-solvent ephilayo okanye uyimanzise nge-solvent ye-organic, uze uyifake emanzini abandayo ukuyinyibilikisa kakuhle.