Kaipupuri Whakamaero Hydroxypropyl Methyl Cellulose Etera HPMC
Viscosity TeiteiHPMChydroxypropyl methyl celluloseWhakamatotoruMo te paura putty:
1) Te ahua:HPMChe ether cellulose nonionic, he paura hina-ma-maama ranei, he kowhatu, he kakara me te kore kakara, he wairewa ki te wai matao, waikawa acetic glacial, ewaro, methanol me te propylene glycol, he memeha noa ki te acetone i runga i te tohu o te whakakapinga, karekau e rewa ki te wai wera. , ethylene glycol me te toluene.Ka rewa te HPMC ki te ranunga o te 10% methanol me te 90% methylene chloride hei hanga wairewa colloidal.
2) Ko te otinga o te HPMC he mahi mata, he maamaa teitei, he mahi pumau.Ina whakamahana i etahi paanga, ka pouri te wairewa, ka hangai ranei he reera karekau.Heoi, ka marama ano te otinga i muri i te whakamatao.Ko nga momo rereke o te HPMC he rereke te pāmahana wai.He rereke te whakarewatanga ki te pokey.Ko te iti o te pokey, ka teitei ake te whakarewatanga.He rereke nga momo momo HPMC ki etahi o nga taonga, a, ko te wairewatanga ki te wai kaore e pa ki te pH.
3) Te rahi o te matūriki: 100% te tere haere i roto i te 80 mata.
4) Kiato kitea: 0.25-0.70 g/mL (te nuinga o te 0.5 g/mL), kiato motuhake 1.26-1.31mL.
5) Te pāmahana huringa tae: 190-200 ° C;Te wera warowai: 280-300°C.
6) Te mata o te mata: 42-56 dyn/cm (2% wairewa wai).
7) Ko te teitei ake o te methoxy i roto i te HPMC, te iti iho o te mahana o te wai, me te teitei ake o te wairewa i roto i te wai me te mahi mata.
8) Ko etahi atu ahuatanga o te HPMC, hei tauira, te whakakaha rawa, te pumau o te pH, te pupuri i te wai, te pai o te hanga kiriata, te pai o te marara me te kaha adhesion.
2) Ko te otinga o te HPMC he mahi mata, he maamaa teitei, he mahi pumau.Ina whakamahana i etahi paanga, ka pouri te wairewa, ka hangai ranei he reera karekau.Heoi, ka marama ano te otinga i muri i te whakamatao.Ko nga momo rereke o te HPMC he rereke te pāmahana wai.He rereke te whakarewatanga ki te pokey.Ko te iti o te pokey, ka teitei ake te whakarewatanga.He rereke nga momo momo HPMC ki etahi o nga taonga, a, ko te wairewatanga ki te wai kaore e pa ki te pH.
3) Te rahi o te matūriki: 100% te tere haere i roto i te 80 mata.
4) Kiato kitea: 0.25-0.70 g/mL (te nuinga o te 0.5 g/mL), kiato motuhake 1.26-1.31mL.
5) Te pāmahana huringa tae: 190-200 ° C;Te wera warowai: 280-300°C.
6) Te mata o te mata: 42-56 dyn/cm (2% wairewa wai).
7) Ko te teitei ake o te methoxy i roto i te HPMC, te iti iho o te mahana o te wai, me te teitei ake o te wairewa i roto i te wai me te mahi mata.
8) Ko etahi atu ahuatanga o te HPMC, hei tauira, te whakakaha rawa, te pumau o te pH, te pupuri i te wai, te pai o te hanga kiriata, te pai o te marara me te kaha adhesion.
Kei roto i nga hua Youngcel nga momo hua wai katoa penei i te horoi o te papa, te horoi horoi me nga hua horoi rihi me te pH i waenga.6- 8
Taiohicelka taea te whakamahi hei kaitao ki te whakatika i te rheology o nga hopi wai, whakatika ki te ahua e hiahiatia ana me te riterite pai.
Taiohicel ka taea e nga tauira viscous me nga kai horoi kiri te whai hua ake, me te pai ake, na te meaTaiohicelka waiho nga kai horoi kiri ki runga i te mata ka mahi mo te wa roa, no reira ka pai ake te horoi.
- Nga hua whakamatao
- Te whakatikatika i te riterite
- Te hototahi ki nga surfactants katote
- Nga otinga o te tino marama
