Hydroxypropymethylcellulose (hpmc) ndi gawo lomwe limagwiritsidwa ntchito lomwe limagwiritsidwa ntchito m'mafakitale osiyanasiyana, kuphatikizapo kupanga ma varnisas. Mu varnishes, hpmc imagwiritsidwa ntchito ngati thickier ndi rheology yosintha. Zimathandizira kuwonjezera mamasukidwe ndi kukhazikika kwa varnish, ndikupangitsa kuti ikhale yosavuta kuigwiritsa ntchito ndikulimbitsa magwiridwe ake.
HPMC ndi mankhwala opaka pa cellulose omwe achokera ku nkhuni kapena ulusi wa thonje. Ndiwosungunuka madzi ndikupanga njira yomveka bwino, yopanda utoto ikasakanikirana ndi madzi. M'malo a varniss amabweretsa zinthu zotsatirazi:
Kuwongolera Visccence: HPMC imathandizira kuwongolera makulidwe kapena mafayilo a varnish, kuonetsetsa kuti ili ndi kusasinthika koyenera kuti mugwiritse ntchito.
Mapangidwe a filimu: Amathandizira kupanga yunifolomu, kalimika yosalala pagawo lapansi, ndikuteteza komanso zokongoletsera.
Zotsatsa: hpmc imawonjezera chipilala cha varnish pamwamba, kulimbikitsa chotsatsa bwino komanso kulimba.
Kuchepetsa Spatter: Malo opindika a HPMC amachepetsa zokolola panthawi ya ntchito, zomwe zimapangitsa kuti zigwirizane.
Kukhazikika: Zimathandizira kukhazikika kwa mitundu ya varkish, kuletsa kupatukana kwa tinthu kapena kukhazikika.
Mukamagwiritsa ntchito HPMC mu varnissus, ndikofunikira kuganizira zofunikira zomwe mukufuna komanso zomwe mukufuna. Kukhazikika kwa HPMC, komanso zosakaniza zina, zimatha kusokoneza magwiridwe ake a varnish.
Moyenera, hpmc imagwiritsidwa ntchito kwambiri m'makampani monga mankhwala, chakudya, ndi zomanga chifukwa cha malo omwe amakhala ngati wokhazikika ngati wokhazikika.
Post Nthawi: Feb-19-2025