Cellulose ether bvunzo mhinduro

Kuburikidza nekuongororwa uye pfupiso ye cellulose ether bvunzo zvinoitika muzvitsauko zvitatu, mhedzisiro huru ndeye inotevera:

5.1 Mhedziso

1. Cellulose ether kubviswa kubva pakurima zvigadzirwa

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uye bagasasti yekubvisa cellulose, uye maitiro eCellulose Exction akagadziridzwa. Pasi pekugadzirisa mamiriro ezvinhu, the

Kuchena kweLignocellose, gorosi Straw Cellulose uye Bagasse Cellalose vaive vese vari pamusoro 90%, uye goho ravo raive zvese pamusoro pe40%.

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Pa1510 cm-1 (Skeletal vibration ye benzene mhete) uye kutenderera 1730 cm-1 (kutambanudza vibration yekunyudza carbonyl c carbonyl c = o)

Pakanga pasina mapundu, achiratidza kuti lignin uye hemicellose chigadzirwa chakabviswa chaive chakabviswa, uye iyo cellulose yaive yakanyanya kuchena. nepepuru

Inogona kuoneka kubva kune yekunze kwekunyora iyo iyo yehukama yeLignin inoderedza nguva pfupi mushure medanho rega rega rekurapa, uye iyo UV yekudzora kweiyo yakawanikwa cellulose inoderera.

Iyo yakawanikwa yekuona yaive pedyo neiyo ultraviolet yekunyudza kwekutarisa kweiyo block potasasium permananate, zvichiratidza kuti iyo yakawanikwa cellulose yaive yakachena. na x

X-ray file ongororo yakaratidza kuti hama yekristuru yeiyo yakawanikwa yechigadzirwa cellulose yakavandudzwa zvikuru.

2. Kugadzirira kwe cellulose ana

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Orthogonal kuyedza uye imwe-factor kuedza kwakaitwa kugadzirira kweCMC, hec uye Hecmc kubva pine Wood Alkali Cellalose Cellose, zvichiteerana.

Optimization. Pasi peiyo yakarongedzwa gadziriro yekugadzirira, CMC ine DS kusvika 1.237, hec ine ms kusvika ku1.657 yakawanikwa.

uye hecmc ine ds ye 0.869. .

MuCellulose etera hec, iyo hydroxyl boka rakabudirira zvakabudirira; MuCellulose ether hecmc, iyo hydroxyl boka rakabudirira kubatanidzwa

Carboxymethyl uye hydroxytembersl mapoka.

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molen degree rekutsiva.

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Iyo crystal mafomu ese akachinja kusvika kuCellulose Type II, uye Crystallinity yakaderera zvakanyanya.

3. Kushandiswa kwe cellulose ether paste

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Iyo pseudoplasticastion yeiyo matatu cellulose ana vana ari nani pane yeSa, uye ichienzaniswa naSa, ine kukosha kwepasi kwePVI, iyo yakakodzera kudhinda panhau dzakanaka.

Ruva; Kurongeka kweiyo paste fomu yekuumbwa kweiyo mana pastes ndeye: Sa> cmc> hecmc> hec; mvura inobata kugona kweCMC yekutanga paste,

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Kuwirirana kweUrea neAnti-Staining munyu weS saizi yakafanana neSa, uye kugadzikana kwekuchengetera kweCMC yekutanga paste iri nani pane sa, asi

Kuwirirana kwehyoze yehasha kwakaipisisa kwakaipa kupfuura kweSa;

Kuwirirana uye kuchengetedza kugadzikana kwesodium bicarbonate kwakaipa kupfuura sa;

S yakafanana, asi mvura ikabata mukana, kuwirirana neSodium bicarbonate uye kuchengetedza kugadzikana kweeicmc mbichana paste yakaderera pane sa. .

uye mwero wekumusoro weCMC iri nani pane iyo yeSA; Rwiyo rwekunyorwa uye kudhinda kunzwa kwehimwe hec zvakafanana neSA, asi kutaridzika kwehasha kuri nani pane kweSa.

Ruvara ruvara, kubvumirana uye kurira kwemavara kuti ubvise zvakadzikira pane sa; Hecmc kudhinda kunzwa, kurira kwemarara kukurumidza kumabvi zvakafanana neSA;

Iyo Paste Ratio yakakwira kupfuura sa, asi iyo inoonekwa ruvara rukova uye kuchengetedza kugadzikana kweHecmc yakaderera pane sa.

5.2 Kurudziro

Kubva pakushandiswa kwekushandisa kwe5.1 cellulose ether paste inogona kuwanikwa, cellulose ther paste inogona kushandiswa mukushanda

Dhayi kudhinda pastes, kunyanya anonic cellulose ana vana. Nekuda kwekutanga kweiyo hydrophilic group carboxymethyl, iyo matanhatu-yakazvarwa

Kuitika kweiyo yekutanga hydroxyl boka pamusoro peiyo mhete, uye iyo isina mhosva mushure meIionsiazation panguva imwe chete, inogona kusimudzira dhayi yemichero ine mafuro ezviitiko. Nekudaro, pane zvese,

Mhedzisiro yekushandiswa kweCellulose etter kudhinda Paste isina kunaka, kunyanya nekuda kweiyo degree rekutsiva kana kutsiviwa kwemheremello enter.

Nekuda kweiyo yakaderera degree rekutsiva, kugadzirira kwema cellulose ana vana neakakwirira subgraid dhigirii kana yakakwira molar kutsiviwa dhajeti dzinoda kuenderera mberi nekuwedzera kudzidza.