Dziwani zambiri za ma cellulose ethers

01. Kugwiritsa ntchito kwakukulu kwa cellulose ether HPMC?

HPMC chimagwiritsidwa ntchito mu zomangamanga matope, utoto madzi, utomoni kupanga, zoumba, mankhwala, chakudya, nsalu, zodzoladzola, fodya, ndi mafakitale ena. Iwo anawagawa kumanga kalasi, kalasi chakudya, kalasi mankhwala, PVC mafakitale kalasi ndi tsiku mankhwala kalasi.

02. Kodi magulu a cellulose ndi ati?

Ma cellulose wamba ndi MC, HPMC, MHEC, CMC, HEC, EC
Pakati pawo, HEC ndi CMC amagwiritsidwa ntchito kwambiri popaka madzi,
CMC itha kugwiritsidwanso ntchito muzoumba, mafuta, chakudya ndi madera ena
EC imagwiritsidwa ntchito kwambiri muzamankhwala, phala lasiliva lamagetsi ndi magawo ena
HPMC lagawidwa specifications zosiyanasiyana matope, mankhwala, chakudya, PVC makampani, tsiku mankhwala mankhwala ndi mafakitale ena.

03. Kodi pali kusiyana kotani pakati pa HPMC ndi MHEC pakugwiritsa ntchito?

Makhalidwe a mitundu iwiri ya cellulose ndi ofanana, koma kutentha kwakukulu kwa MHEC kumakhala bwino, makamaka m'chilimwe pamene kutentha kwa khoma kuli kwakukulu, ndipo ntchito yosungira madzi ya MHEC ndi yabwino kuposa ya HPMC pansi pa kutentha kwakukulu. .

04. Momwe mungangoweruze za khalidwe la HPMC?

1) Ngakhale kuti kuyera sikungadziwe ngati HPMC ndi yosavuta kugwiritsa ntchito, ndipo ngati zopangira zoyera zikuwonjezeredwa pakupanga, khalidweli lidzakhudzidwa, koma zinthu zambiri zabwino zimakhala ndi zoyera zabwino, zomwe zingathe kuweruzidwa molingana ndi maonekedwe.
2) Kupatsirana kowala: Mukatha kusungunula HPMC m'madzi kuti mupange colloid yowonekera, yang'anani kufalikira kwake. Ukadakhala kuti magetsi azitha kuyenda bwino, zinthu zomwe sizingasungunuke zimachepa, ndipo mtundu wake ndi wabwino.
Ngati mukufuna kuweruza molondola khalidwe la cellulose, njira yodalirika kwambiri ndiyo kugwiritsa ntchito zipangizo zamakono mu labotale yoyezetsa. Zizindikiro zazikulu zoyesera zimaphatikizapo kukhuthala, kuchuluka kwa madzi osungira, komanso phulusa.

05. Momwe mungayeserekukhuthala kwa cellulose ether?

Viscometer wamba pamsika wapanyumba wa cellulose ndi NDJ, koma pamsika wapadziko lonse lapansi, opanga osiyanasiyana nthawi zambiri amagwiritsa ntchito njira zosiyanasiyana zoyezera kukhuthala. Zomwe zimafala ndi Brookfeild RV, Hoppler, ndipo palinso njira zosiyana zodziwira, zomwe zimagawidwa mu 1% yankho ndi 2% yankho. Ma viscometer osiyanasiyana ndi njira zodziwira zosiyanasiyana nthawi zambiri zimabweretsa kusiyana kangapo kapena kangapo pazotsatira za viscosity.

06. Kodi pali kusiyana kotani pakati pa mtundu waposachedwa wa HPMC ndi mtundu wosungunuka wotentha?

HPMC a pompopompo mankhwala amanena za mankhwala mwamsanga kumwazikana m'madzi ozizira, koma tisaiwale kuti kubalalitsidwa sikutanthauza kuvunda. Zogulitsa pompopompo zimathandizidwa ndi glyoxal pamwamba ndikumwazika m'madzi ozizira, koma samayamba kusungunuka nthawi yomweyo. , kotero mamasukidwe akayendedwe samapangidwa atangobalalika. Kuchuluka kwa mankhwala amtundu wa glyoxal, kufalikira kwachangu, koma kuchedwetsa kukhuthala, kumachepetsa kuchuluka kwa glyoxal, ndi mosemphanitsa.

07. Ma cellulose ophatikizika ndi cellulose yosinthidwa
Tsopano pali zambiri zosinthidwa mapadi ndi mapadi mapadi pamsika, ndiye kusinthidwa ndi pawiri ndi chiyani?

Mtundu woterewu wa cellulose nthawi zambiri umakhala ndi zinthu zomwe cellulose yoyambirira ilibe kapena imapangitsanso zina mwazinthu zake, monga: anti-slip, kutsegulira nthawi yotseguka, kuchulukirachulukira kudera lopangira zomangamanga, etc. Komabe, ziyenera kudziwidwa kuti makampani ambiri. gwiritsaninso ntchito Ma cellulose otsika mtengo omwe amasokoneza kuti achepetse ndalama amatchedwa cellulose kapena cellulose yosinthidwa.