Ma cellulose ethers omwe amagwiritsidwa ntchito kawirikawiri amaphatikizapo HEC, HPMC, CMC, PAC, MHEC, etc. Nonionic madzi osungunuka a cellulose ether ali ndi cohesiveness, kukhazikika kwa dispersion ndi mphamvu yosungira madzi, ndipo ndi chowonjezera chothandizira pazinthu zomangira. HPMC, MC kapena EHEC ntchito ambiri simenti ofotokoza kapena gypsum ofotokoza zomangamanga, monga zomangamanga matope, simenti matope, ❖ kuyanika simenti, gypsum, cementitious osakaniza ndi yamkaka putty, etc., amene angathe kupititsa patsogolo kubalalitsidwa kwa simenti kapena mchenga ndi bwino kwambiri Adhesion, yomwe ndi yofunika kwambiri kwa pulasitala, matailosi simenti ndi putty. HEC imagwiritsidwa ntchito mu simenti, osati ngati cholepheretsa, komanso ngati chosungira madzi, ndipo HEHPC imagwiritsidwanso ntchito pankhaniyi. MC kapena HEC nthawi zambiri amagwiritsidwa ntchito limodzi ndi CMC ngati gawo lolimba lazithunzi. Medium-viscosity kapena high-viscosity cellulose ethers nthawi zambiri amagwiritsidwa ntchito pazithunzi zomangira zomangira.
Hydroxypropyl methylcelluloseMtengo wa HPMCamagwiritsidwa ntchito popanga mkati ndi kunja kwa khoma putty ufa ndi mamasukidwe akayendedwe mapanelo 100,000 mapadi, mu ufa youma matope, matope diatom ndi zinthu zina zomangira, mapadi ndi mamasukidwe akayendedwe a 200,000 amagwiritsidwa ntchito, ndi kudziletsa leveling ndi zina. matope apadera, mapadi okhala ndi mamasukidwe 400 amagwiritsidwa ntchito. Viscosity cellulose, mankhwalawa ali ndi zotsatira zabwino zosungira madzi, zotsatira zabwino za thickening komanso khalidwe lokhazikika. HPMC imagwiritsidwa ntchito kwambiri pamakampani opanga zida zomangira ndipo imagwiritsidwa ntchito mochulukirapo. Ma cellulose amatha kugwiritsidwa ntchito ngati retarder, chosungira madzi, thickener ndi binder. Ma cellulose ether amatenga gawo lofunikira mumatope osakanikirana owuma, matope akunja opaka khoma, matope odziyika okha, zomatira zomatira, zomatira zomata matailosi, ufa wa putty, mkati ndi kunja kwa khoma putty, matope osalowa madzi, zolumikizira zowonda, etc. ., ali ndi chikoka chofunikira pakusunga madzi, kufunikira kwa madzi, kulimba, kuchedwa ndi kutha ntchito kwa stucco system.
Mankhwala a Hydroxypropyl methylcellulose HPMC amaphatikiza zinthu zambiri zakuthupi ndi zamankhwala kuti akhale chinthu chapadera chokhala ndi ntchito zingapo. Makhalidwe osiyanasiyana ndi awa:
◆ Kusunga madzi: Ikhoza kusunga chinyezi pamtunda wa porous monga matabwa a simenti ndi njerwa.
◆Kupanga mafilimu: Ikhoza kupanga filimu yowonekera, yolimba komanso yofewa yokhala ndi mafuta abwino kwambiri.
◆ Organic Solubility: Mankhwalawa amatha kusungunuka muzitsulo zina za organic, monga ethanol / madzi, propanol / madzi, dichloroethane ndi zosungunulira zomwe zimakhala ndi zosungunulira ziwiri.
◆ Thermal gelation: Njira yamadzimadzi ya mankhwala idzapanga gel pamene itenthedwa, ndipo gel opangidwa adzakhala yankho kachiwiri pambuyo pozizira.
◆ Ntchito yapamwamba: Perekani ntchito zapamtunda mu yankho kuti mukwaniritse emulsification yofunikira ndi colloid yoteteza, komanso kukhazikika kwa gawo.
◆ Kuyimitsidwa: Hydroxypropyl methylcellulose ingalepheretse tinthu tating'ono kuti tisakhazikike, motero kulepheretsa mapangidwe a precipitates.
◆ Colloid yoteteza: Imateteza madontho ndi tinthu ting'onoting'ono kuti tisagwirizane kapena kuti tifanane.
◆Kumatira: Kugwiritsiridwa ntchito monga zomatira kaamba ka utoto, zinthu za fodya, ndi zopangidwa ndi mapepala, kuli ndi ntchito zabwino koposa.
◆ Kusungunuka kwa Madzi: Mankhwalawa amatha kusungunuka m'madzi mosiyanasiyana, ndipo ndende yake yaikulu imakhala yochepa ndi kukhuthala.
◆ Ionic inertness: Mankhwalawa ndi osakhala a ionic cellulose ether, omwe saphatikizana ndi mchere wachitsulo kapena ma ion ena kuti apange mpweya wosasunthika.
◆ Kukhazikika kwa acid-base: koyenera kugwiritsidwa ntchito mkati mwa PH3.0-11.0.
◆Zosakoma komanso zopanda fungo, zosakhudzidwa ndi metabolism; amagwiritsidwa ntchito monga zakudya ndi zowonjezera mankhwala, sizidzasungunuka mu chakudya, ndipo sizidzapereka kutentha.
Nthawi yotumiza: Dec-28-2022