Momwe mungasankhire cellulose yoyenera

(1) Hydroxypropyl methylcellulose (HPMC) imagawidwa mu mtundu wamba (mtundu wosungunuka wotentha) ndi mtundu wamadzi ozizira nthawi yomweyo:

Wamba mtundu, clumps m'madzi ozizira, koma mwamsanga kumwazikana m'madzi otentha ndi kutha m'madzi otentha. Kutentha kumatsika mpaka kutentha kwina, kukhuthala kumawonekera pang'onopang'ono mpaka kumapanga mawonekedwe a viscous colloid. Chifukwa cha kukumana ndi madzi ozizira ndi: ufa wakunja wa cellulose umakumana ndi madzi ozizira, nthawi yomweyo umakhala wowoneka bwino, umakhuthala kukhala colloid yowonekera, ndipo cellulose mkati mwake imazunguliridwa ndi colloid isanakhudze madzi, ndipo ikadali ufa. mawonekedwe. , koma pang'onopang'ono amasungunuka. Zogulitsa wamba siziyenera kugwiritsa ntchito madzi otentha pazogwiritsa ntchito, chifukwa ufa wa putty kapena matope ndi ufa wolimba. Pambuyo pa kusakaniza kouma, cellulose imasiyanitsidwa ndi zipangizo zina. Ikakumana ndi madzi, nthawi yomweyo imakhala viscous ndipo sipanga gulu.

Mankhwalawa amabalalika mwamsanga akakumana ndi madzi ozizira ndipo amatha m'madzi. Panthawi imeneyi, madzi alibe mamasukidwe akayendedwe, chifukwa HPMC kokha omwazika m'madzi popanda kuvunda kwenikweni. Kuyambira pafupifupi mphindi 2, kukhuthala kwamadzimadzi kumawonjezeka pang'onopang'ono, ndikupanga mawonekedwe a viscous colloid.

(2) Kukula kwa kugwiritsa ntchito mtundu wamba ndi mtundu wanthawi yomweyo: mtundu waposachedwa umagwiritsidwa ntchito makamaka mu guluu wamadzimadzi, zodzoladzola, ndi zotsukira zovala. Chifukwa pamwamba pa cellulose pompopompo adathandizidwa ndi dialdehyde, kusunga madzi ndi kukhazikika sikuli bwino ngati zinthu wamba. Choncho, mu ufa wouma monga putty ufa ndi matope, timalimbikitsa mankhwala wamba.

Momwe mungasankhire mamasukidwe oyenera a cellulose:

1. Choyamba, tiyenera kumvetsa udindo wa cellulose ether: kusunga madzi ndi thickening.
2. Makampani amatha kunena kuti 100,000 viscosity, 150,000 viscosity, ndi 200,000 viscosity. Kodi miyeso iyi ikutanthauza chiyani? Kodi mayunitsi osiyanasiyana a muyeso amakhudza bwanji chinthu?

(1) Kusunga madzi
Kusungidwa kwa madzi kumawonjezeka ndikuwonjezeka kwa viscosity, koma malinga ndi momwe msika umakhalira, kukhuthala kwa cellulose kupitilira 100,000, kusungirako madzi kumawonjezeka ndi mamasukidwe akayendedwe.

(2) Kunenepa
Nthawi zambiri, zomwe zili zogwira mtima zili bwino, chiwongola dzanja chikakhala chokulirapo, chimapangitsa kuti chiwonjezeke bwino. Ndiko kunena kuti, kukhuthala kwakukulu kumafuna madzi ambiri, ndipo kuchuluka kwa madzi osungirako sikumasintha kwambiri.

3. Makampani ambiri amagwiritsira ntchito ma ratioti osiyanitsidwa, ndiko kuti, matope osiyanasiyana ndi mafotokozedwe a cellulose ether ndi osiyana, koma kwa mafakitale ang'onoang'ono, adzawonjezera mtengo. Mafakitale ang'onoang'ono ambiri amangogwiritsa ntchito fiber pulasitiki etha imodzi kuti agwiritse ntchito, ndiye kuti, mlingo wake ndi wosiyana. ! Nthawi zambiri, mayunitsi 100,000 ndi omwe amagwiritsidwa ntchito kwambiri.

4. Nthawi zambiri 200,000 viscosity amagwiritsidwa ntchito pomanga matope, ndipo 100,000 amagwiritsidwanso ntchito podzipangira okha, 100,000 kudzipangira okha, ndi 80,000 popaka pulasitala. Inde, zimatsimikiziridwa makamaka ndi khalidwe la kusunga madzi. Sitikupangira makasitomala kugwiritsa ntchito mamasukidwe apamwamba. Mwachitsanzo, pa mayunitsi 200,000, kukwezera kukhuthala kwa cellulose ether, kumakhala kosakhazikika, ndipo pali zinthu zambiri zabodza. Makasitomala ena amati chinthu chenicheni cha 20W ndichomamatira kwambiri ndipo kapangidwe kake sikwabwino kwambiri.

5. Kusungirako madzi kwa cellulose ether yomwe imagwiritsidwa ntchito mumatope ndi yosiyana ndi kusungirako madzi kwa cellulose ether poyesera. Ngakhale kusungidwa kwa madzi a cellulose ether palokha kuli kwabwino, sizitanthauza kuti zotsatira zake mumatope ndizotsimikizika, zimatsimikiziridwa makamaka ndi magwiridwe antchito a zotsalira zotsalira mu chilinganizo, kuchuluka kwa kuwonjezera, ndi kusakanikirana kwa zida youma ufa matope. Ndibwino kuti mugwiritse ntchito pakhoma kuti muwone zotsatira zake. Ichi ndi chowonadi!