M'matope osakanizika, osakanizika a hydroxypropyl methl celluluse HPMC ndi yotsika kwambiri, koma imatha kusintha kwambiri matope onyowa, omwe ndiowonjezera kwambiri omwe amakhudza matope a matope. Cellulose etrs ndi mafayilo osiyanasiyana ndikuwonjezera kuchuluka kwa zotsatira zabwino pakusintha kwa matope owuma. Pakadali pano, matope ambiri ndi matope okhala ndi madzi osasunga madzi osasunga madzi, ndipo kupatukana kwamadzi kumachitika pambuyo mphindi zochepa kuyimirira. Kusungidwa kwamadzi ndikofunikira pakugwiritsa ntchito methyl cellulose ether ether, ndipo ndi ntchito yomwe ambiri opanga matope, makamaka omwe ali m'malo opanga matope, makamaka omwe ali m'malo otentha kwambiri kumwera, samalani. Zinthu zomwe zikukhudza madzi kubwezeretsa matope zimaphatikizapo kuchuluka kwa HPMC yowonjezeredwa, mamasuwa a HPMC, kukometsa kwa tinthu tambiri ndi kutentha kwa malo omwe amagwiritsidwa ntchito.
1. Cellulose ether ndi zochokera ku cellulose yachilengedwe. Kupanga kwa cellulose ether ndi kosiyana ndi opanga ma polima. Zida zake zoyambirira ndizopenchera, kuphatikiza kwachilengedwe kwa polymer. Chifukwa cha kapangidwe kake ka cellulose, cellulose yomwe ilibe mphamvu yokhudzana ndi othandizira. Koma pambuyo potupa amathandizidwa, mahola olimba a hydrogen pakati pa unyolo wa ma molecular pakati pa unyolowowombedwa, ndipo kutulutsidwa kwa gulu la hydroxyl kumatembenuka mu cellulose. Pambuyo pa ntchito yoyesa kuchita, gulu la -oh limasinthidwa kukhala gulu la-kapena gulu. Pezani ether ether. Chikhalidwe cha cellulose ethel ether zimatengera mtundu, kuchuluka komanso kufalitsa m'malo. Kugawika kwa cellulose kumachitikanso pamitundu ya magantimiti, kuchuluka kwa chikondwerero, kusungunuka ndi ntchito zofananira. Malinga ndi mtundu wa magalamure pa ma molecular cheni, imatha kugawidwa mu monoether ndi osakaniza. The HPMC yomwe timagwiritsa ntchito imasakaniza ether. Hydroxypropyl me cellulose ether hy hpmc ndi chinthu chomwe gawo la ma hydroxyl pa unit amasinthidwa ndi gulu lina la hydroxypyl. HPMC imagwiritsidwa ntchito makamaka pomanga zida, zokutira za latex, mankhwala tsiku lililonse, ndi zina zogwiritsidwa ntchito ngati mtengo wa madzi, okhazikika, obalalika, ndi othandizira mafilimu.
2. Kusunga kwamadzi kwa etherse ya cellulose: Kupanga matope opanga, makamaka matope owuma, makamaka popanga matope apadera (matope osinthika), ndizofunikira. chigawo. Udindo wofunikira wa solweble pa cellulose ether pa matope ndi makamaka mbali zitatu. Limodzi ndi labwino kwambiri pamadzi osungitsa madzi, linalo ndiye chidwi pa kusasinthika ndi thixotropy ya matope, ndipo chachitatu ndi kulumikizana ndi simenti. Kusunga madzi ethel ethelu kumatengera mayamwidwe am'munsi, kapangidwe ka matope, makulidwe a matope, kufunafuna madzi kwa matope, ndi nthawi ya kukhazikitsa zida zam'madzi. Kusunga kwamadzi kwa ethel kumachokera ku sulubility ndi madzinjeme a cellulose soni.
Kukula ndi thixotropy ya ethel ether: gawo lachiwiri la cellulose ether-kukula kwa polymerizations a ethel ethel ethel ethel, yankho ndi zina. Mitundu yayikulu ya yankho ndi yosiyanasiyana ya cellulose komanso zotumphukira. Makhalidwe a nthochi amakhudzana ndi digiri ya zolowa m'malo mwake, yankho ndi zowonjezera.
Kutha kwa madzi abwino kumapangitsa simenti hydrate kukhala wathunthu, kumatha kukonza mawonekedwe onyowa a matope, onjezerani mphamvu ya matope, ndipo nthawi itha kusintha. Kuphatikiza kwa cellulose ether kwa makina kupopera matope amatha kusintha kupopera mbewu mankhwalawa kapena kupopera matope a matope, komanso nyonga yamphamvu. Chifukwa chake, ethel ether imagwiritsidwa ntchito kwambiri ngati zowonjezera zofunikira m'matope osakanikirana.
Post Nthawi: Disembala 16-2021