Kodi kupanga ndi kapangidwe ka mu cellulose ndi chiyani?

Cellulose ether ndi polymer compound ndi mawonekedwe a ethel opangidwa ndi cellulose. Mphete iliyonse ya glucosyl mu cellulose macromelecule imakhala ndi magulu a hydroxyl a atomu wachisanu ndi chimodzi, ndipo haidrogen mu gulu la hydrocborbon yopanga ma cellulose ethel ether.

Kugwiritsa ntchito cellulose ether

1. Womanga Stade Cellulose ether

Cellulose ether imadziwika kuti "mafakitale monodium glutate". Chifukwa cha kukula kwake kwamphamvu, kusungitsa madzi ndikubwezera katundu, kumagwiritsidwa ntchito kwambiri pokonza matope osakanikirana, kupanga matope osakanizika, utoto wa latex, matope ena opangira mankhwala. Chifukwa cha kusintha kwa kuchuluka kwa dziko langa la dziko langa, kukula kwa makampani omanga nyumba, mosasinthasintha kwa chitetezo cha zomangamanga, komanso zomwe zimachitika zachilengedwe zomwe ogula amafunikira kwambiri pa celluse yomanga.

2.

Cellulose eder amagwiritsidwa ntchito kwambiri zophatikizira filimu, mafilimu, mafuta opangira, mafuta, masamba a masamba, kukonzekera kumasulira komanso kuwongolera kwa mankhwala ndi magawo ena a mankhwala. Monga fungulo, cellulose ether ili ndi ntchito zopitilira muyeso wa mankhwala nthawi ndi kulimbikitsa kumwa mankhwala obalalitsidwa ndi kusungunuka; Monga kapisozi ndi makulidwe, imatha kupewa kuwonongeka ndi kulumikizidwa ndi kulumikiza ndi kuchiritsa, ndipo ndi chinthu chofunikira chopangira ma prosecceutical. Ukadaulo wa pulogalamu ya mankhwala am'madzi a cellulose ether akukhwima m'maiko otukuka.

3. Chakudya cham'mlengalenga cha Ether

Ma ether-greele ether ether ndi chakudya chokwanira chowonjezera. Itha kugwiritsidwa ntchito ngati chakudya chopanda chakudya, wokhazikika komanso wotetezedwa kudzutsa, kusunga madzi, ndikusintha. Amagwiritsidwa ntchito kwambiri m'maiko otukuka, makamaka chifukwa chophika zakudya zophika, zonona zonona, zonona za zipatso, zipatso za mapuloteni, zakudya zina zopangira mapuloteni, ndi zina zokazinga.

Cellulose emether

1. Hydroxyethyl methylcelulose

Njira yokonzekera ya hydroxyethyl methylcelulose, njira ndikugwiritsa ntchito thonje loyenga ndi ma ethylene oxide ngati njira yokonzekeretsa hydroxenulose. Magawo olemera opangira ma hydroxyethyl methy celyl ndi madera 70-80 a oxyl chloride, 16-19 magawo a acetic acid; Masitepe azomwe ali:

Gawo loyamba, ku ketot, onjezani choluene ndi isoppanol osakaniza, madzi, ndi sodium hydroxide, kutentha mpaka 60-80 ° C, pitirizani kutentha 2040;

Gawo lachiwiri, kuyamwa: Kuziziritsa zomwe zili pamwambazi kwa 30-50 ° C, onjezani thonje la toloene ndi isopropanol ya 3. Alkalinization, mikhalidwe ya alkirization ndi: Nthawi ya ma alkishilization ndi maola 2, kutentha kwa ma fl 50 ℃ 50 ℃;

Gawo lachitatu, kuyeretsedwa: Pambuyo pa kupemberera kwatsirizidwa, riyakitalayo imathamangitsidwa ku 0.05-0.07MPA, ndi ethylene oxide ndi methyl chloride imawonjezeredwa kwa mphindi 30-5l. Gawo loyamba la kuyeretsedwa: 40-60 ° C, 1.0-2,0 maola, zovuta zimayang'aniridwa pakati pa 0.150.3mA; Gawo lachiwiri la chikondwerero: 60 ~ 90 ℃, 2.0 ~ maola 2.5, kupanikizika kumayendetsedwa pakati pa 0,40.8.MPA;

Gawo lachinayi, netrazilization: Onjezani acetic acetic actic atch tomtunda, limbikitsani kutentha kwa ereserization, kwezani mtengo wa 102 Thumba la defololict limadzaza ndi 90 ℃ ~ ~ ℃ ℃ Bow Madzi omwe amathandizidwa ndi chipangizo chosinthidwe osmosis;

Gawo Lachisanu, Kutsuka kwa centrifugal: Nkhani mu gawo lachinayi ndi centrifugal kudzera pa centerrifuge ya centerrifuge, ndipo zida zopatulidwa zimasamutsidwa ku thanki yodzala ndi madzi otentha pasadakhale;

Gawo Lachisanu ndi Chimodzi, Kuyanika kwa Centrifugal: Zinthu zosambitsidwa zimafotokozedwa mu chowuma kudzera pa centerrifuge, ndipo zinthuzo zimawuma pa 150-170 ° C, ndipo zinthu zouma zimaphwanyidwa ndikuyikidwa.

Poyerekeza ndi ma cellulose omwe alipo kale, zomwe zimayambitsa nthawi zambiri zimagwiritsa ntchito ethylene oxide ngati ma hydroxyethyl ma celyl, omwe ali ndi mitundu ya hydroxyethyll. Ili ndi mawonekedwe abwino a Visccection ndi kukana minofu pakusungidwa kwa nthawi yayitali. Itha kugwiritsidwa ntchito m'malo mwa ma cellulose ena.

2. Hydroxypropyll Methylcelulose

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. Kulemera kwa maselo ochokera ku 10,000 mpaka 1 500 000.