Ko te Hydroxypropyl Methyl Cellulose (HPMC), e mohiotia ana e te ingoa hokohoko hypromellose, he polymer waihanga i ahu mai i te cellulose taiao.Ko te puna tuatahi o te cellulose mo te hanga HPMC ko te nuinga o te rakau penupenu, te miro ranei.Ko te mahi whakangao ko te whakarereke matū i te cellulose na roto i te whakakaha, te whakauru i nga roopu hydroxypropyl me te methyl ki runga i te tuara cellulose.

Ko te hanga o te HPMC he maha nga waahanga:

1. Tangohanga Cellulose:
   • Ka riro mai te cellulose mai i nga puna tipu, te nuinga o te tupa rakau, te miro ranei.Ka tangohia te cellulose ka purea ki te hanga i te penupenu cellulose.
2. Whakamaaka:
   • Ka tukuna te penupenu cellulose ki te wairewa kawakore, te nuinga o te konutai hauwai (NaOH), hei whakahohe i nga roopu hydroxyl i runga i te mekameka cellulose.
3. Whakawera:
   • Ko te whakamaaramatanga te mahi matua mo te hanga HPMC.Ka tauhohehia te cellulose kawakore ki te propylene oxide (mo nga roopu hydroxypropyl) me te methyl chloride (mo nga roopu methyl) hei whakauru i enei roopu ether ki runga i te tuara cellulose.
4. Te whakakore me te horoi:
   • Ko te hua o te cellulose whakarerekē, ko Hydroxypropyl Methyl Cellulose ināianei, ka tukuna he tukanga whakakore hei tango i nga toenga kawakore.Katahi ka tino horoia hei whakakore i nga poke me nga hua o te taha.
5. Te whakamaroke me te mira:
   • Ka whakamarokehia te cellulose kua whakarereketia hei tango i te makuku, ka mira hei paura pai.Ko te rahi o te matūriki ka taea te whakahaere i runga i te tono e hiahiatia ana.

Ko te hua o te HPMC he paura ma, he ma-ma ranei me nga nekehanga rereke o te hydroxypropyl me te whakakapinga methyl.Ko nga ahuatanga motuhake o te HPMC, penei i te whakarewatanga, te viscosity, me etahi atu ahuatanga mahi, ka whakawhirinaki ki te tohu o te whakakapinga me te mahi hangahanga.

He mea nui kia mahara ko te HPMC he waerau hangarua, a ahakoa i ahu mai i te cellulose maori, he nui nga whakarereketanga matū i te wa o te mahi hangahanga kia tutuki ai ona ahuatanga e hiahiatia ana mo nga momo tono ahumahi.