Wheketere Hopara Raw Materials cellulose Ahumahi matū HPMC cellulose ether Hydroxypropyl methyl cellulose

1) Te ahua: Ko te HPMC he etera cellulose nonionic, he paura ma-hinahina-ma, he kirikiri ranei, he hongi me te kore kakara, he wairewa ki roto.

te wai matao, te waikawa acetic glacial, te waihano, te methanol me te propylene glycol, he iti te wairewa i roto i te acetone i runga i te tohu o te

he whakakapinga, kare e rewa ki te wai wera, ethylene glycol me te toluene. Ka rewa te HPMC ki te ranunga o te 10% mewaro

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 pāmahana

ka pouri te wairewa, ka hangai ranei he reera karekau. Heoi, ka marama ano te otinga i muri i te whakamatao. Nga momo rereke

He rereke nga pāmahana whakawhanaunga a HPMC. He rereke te whakarewatanga ki te pokey. Ko te iti o te pokey, ka teitei ake te whakarewatanga

kei a ia. He rereke nga momo momo HPMC i etahi o nga taonga, a, ko te wairewatanga i roto i te wai kaore e pa ki te pH.
3) Te rahi o te matūriki: 100% 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 pāmahana waro: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) Kei a HPMC etahi atu ahuatanga, hei tauira, te whakakaha i nga rawa, te pumau o te pH, te pupuri wai, te hanga kiriata pai.

taonga, pai marara me te kaha adhesion.