Sezvo maitiro ehydroxypropyl methylcellulose akafanana nemamwe ether-soluble ethers, inogona kushandiswa mu emulsion coatings uye mvura-soluble resin coating components semugadziri wefirimu, thickener, emulsifier uye stabilizer, nezvimwewo, izvo zvinopa firimu rekuputira. zvakanaka abrasion resistance. Homogeneous coating uye adhesion, uye yakagadziridzwa kusawirirana kwepamusoro, kugadzikana kune acids uye zvigadziko, uye kuenderana nesimbi pigment.
Sezvo HPMC ine yakakwira gel point pane MC, zvakare inoshingirira kurwiswa kwebhakitiriya pane mamwe cellulose ethers, uye nekudaro inogona kushandiswa seyakakora mumiriri weaqueous emulsion coatings. HPMC ine yakanaka viscosity yekuchengetedza kugadzikana uye kwayo kwakanakisa dispersibility, saka HPMC inonyanya kukodzera seanoparadzira mune emulsion coatings.
Iko kushandiswa kwehydroxypropyl methyl cellulose muindasitiri yekuputira kunotevera.
1.various viscosity HPMC configuration pendi kupfeka kuramba, yakakwirira tembiricha kuramba, anti-bhakitiriya tsananguro, kugeza kuramba uye kugadzikana kuti acids uye zvigadziko zviri nani; inogonawo kushandiswa sependi stripper ine methanol, ethanol, propanol, isopropyl doro, ethylene glycol, acetone, methyl ethyl ketone kana diketone doro thickener; HPMC yakagadzirwa emulsified coatings ine yakanakisa kunyorova abrasion; HPMC kupfuura HEC uye EHEC uye CMC sezvo HPMC ine mhedzisiro iri nani pane HEC neEHEC neCMC seanokora pendi.
2.Yakanyanya kutsiva hydroxypropyl methyl cellulose ine kurwisa kuri nani kukurwisa kwebhakitiriya pane kutsiva yakaderera, uye ine zvirinani viscosity kugadzikana mu polyvinyl acetate thickeners. Mamwe ma cellulose ethers ari mukuchengetedza nekuda kwekuparara kweketani ye cellulose ether uye kuita kuti iyo coating viscosity ideredzwe.
3.paint stripper inogona kunyungudika nemvura HPMC (apo methoxy iri 28% kusvika 32%, hydroxypropoxy iri 7% kusvika 12%), dioxymethane, toluene, paraffin, ethanol, methanol configuration, ichaiswa panzvimbo yakatwasuka, pamwe chete. iyo inodiwa viscosity uye volatility. Pendi stripper iyi inobvisa pendi dzakajairwa dzekupfapfaidza, mavarnish, enamels, nemamwe maepoxy esters, epoxy amides, catalyzed epoxy amides, acrylates, etc. Pendi dzakawanda dzinogona kupepetwa mumasekonzi mashoma, mamwe pendi anoda 10~15min kana kudarika, izvi. pendi stripper inonyanya kukodzera nzvimbo dzehuni.
4.Water emulsion pendi inogona kuumbwa nezvikamu zana zveinorganic kana organic pigment, 0.5 ~ 20 zvikamu zvemvura-soluble alkyl cellulose kana hydroxyalkyl cellulose uye 0.01 ~ 5 zvikamu zve polyoxyethylene ether kana ether ester. Semuenzaniso, iyo colorant inowanikwa nekusanganisa 1.5 zvikamu zveHPMC, 0.05 zvikamu zve polyethylene glycol alkyl phenyl ether, 99.7 zvikamu zvetitanium dioxide uye 0.3 zvikamu zvekabhoni nhema. Musanganiswa wacho unozomutswa nezvikamu zana zve 50% yakasimba polyvinyl acetate kuti iwane iyo yekuputira, uye hapana mutsauko pakati peiyo yakaoma coating firimu inoumbwa nekuiisa pabepa gobvu nekuipuruzira zvishoma nebhurasho.
Nguva yekutumira: May-20-2022