He aha te mea hanga mai i te ethylcellulose?

Ko te Ethyl cellulose he polymer waihanga i ahu mai i te cellulose taiao, he waahanga hanga noa o nga pakitara tipu tipu. Ko te hanga o te ethyl cellulose ko te whakarerekētanga matū o te cellulose māori mā te whakamahi i te ethyl chloride me te whakakōkī ki te whakaputa i te ethyl ether derivative o te cellulose.

Ka timata te mahi i te purenga o te cellulose mai i nga puna tipu, penei i te penupenu rakau, te miro ranei. Ka rewa te cellulose kua purea ki roto i te ranunga whakarewa, penei i te waihano me te wai, kia puta he wairewa viscous. Kātahi ka tāpirihia te Ethyl chloride ki te wairewa, me te whakakōkī, hei whakangāwari i te tauhohenga i waenga i te cellulose me te ethyl chloride.

I te wa o te tauhohenga, ka whakakapihia e te ngota ngota ethyl chloride etahi o nga roopu hydroxyl i runga i te mekameka cellulose, ka puta te hanga o te ethyl cellulose. Ko te tohu o te ethoxylation, te maha ranei o nga roopu ethyl e piri ana ki ia wae kuhuka i roto i te mekameka cellulose, ka taea te whakahaere i te wa o te tauhohenga ki te whakaputa ethyl cellulose me nga ahuatanga rereke me nga ahuatanga whakarewatanga.

Ka oti te tauhohenga, ka purea te ethyl cellulose ka whakamaroke ki te tango i nga toenga whakarewa, poke ranei. Ko te hua whakamutunga he paura ma, he kowhai kowhai ranei e memeha ana i roto i te whānuitanga o nga momo whakarewa pararopi, engari karekau ki te wai.

Ko te katoa, ko te ethyl cellulose he polymer waihanga i ahu mai i te cellulose taiao na roto i te tukanga whakarereke matū e uru ana ki te taapiri o nga roopu ethyl ki te mekameka cellulose.