Hydroxypropyl methylcellulose (HPMC kwenguva pfupi) inokosha yakasanganiswa ether, iyo isiri-ionic mvura-soluble polymer, uye inoshandiswa zvakanyanya muzvokudya, mishonga, indasitiri yemakemikari yemazuva ose, kuvhara, kuita kwepolymerization uye kuvaka sekusimudzira kupararira, kuwedzera, emulsifying, stabilizing uye adhesives, nezvimwewo, uye pane gaka rakakura mumusika wepamba.
Nekuti HPMC ine zvakanakisa zvivakwa zvakaita sekukora, emulsification, kugadzira firimu, inodzivirira colloid, kuchengetedzwa kwemwando, kunamatira, enzyme kuramba uye metabolic inertness, inoshandiswa zvakanyanya mukupfeka, polymerization maitiro, zvekuvaka, kugadzirwa kwemafuta, machira, chikafu, mushonga, Daily-kushandisa Ceramics, zvigadzirwa zvemagetsi nembeu dzekurima nemamwe madhipatimendi.
Building materials
Muzvivakwa zvekuvaka, HPMC kana MC inowanzowedzerwa kune simende, dhaka, uye dhaka kuvandudza kuvaka uye kuchengetedza mvura.
HPMC inogona kushandiswa pa:
1).Adhesive uye caulking agent ye gypsum-based adhesive tepi;
2).Kusungirirwa kwezvidhinha, matairi uye nheyo;
3).Plasterboard-based stucco;
4).Cement-based structural plaster;
5).Muchigadziro chepende uye kubvisa pendi.
Adhesive for ceramic tiles
HPMC 15.3 zvikamu
Perlite 19.1 zvikamu
Mafuta amides uye cyclic thio anosanganisa 2.0 zvikamu
Clay 95.4 zvikamu
Silika yekudyara (22μ) 420 zvikamu
450.4 zvikamu zvemvura
Inoshandiswa musimende yakasungwa nezvidhinha, mataira, matombo kana simende:
HPMC (dhigirii rekupararira 1.3) 0.3 zvikamu
Cattelan simende 100 zvikamu
Silika jecha 50 zvikamu
50 zvikamu zvemvura
Inoshandiswa seyepamusoro-yakasimba simende yekuvaka zvinhu zvekuwedzera:
Cattelan simende 100 zvikamu
Asbestos 5 zvikamu
Polyvinyl doro kugadzirisa 1 chikamu
Calcium silicate 15 zvikamu
Clay 0.5 zvikamu
32 zvikamu zvemvura
HPMC 0.8 zvikamu
Indasitiri yependi
Muindasitiri yependi, HPMC inonyanya kushandiswa mulatex pendi uye mvura-inonyungudika resin pendi zvikamu semugadziri wekugadzira firimu, thickener, emulsifier uye stabilizer.
Kumiswa Polymerization yePVC
Munda une kushandiswa kukuru kwezvigadzirwa zveHPMC munyika yangu ndeyekumiswa kwepolymerization yevinyl chloride.Mukumiswa kwepolymerization yevinyl chloride, iyo dispersion system inokanganisa zvakananga kunaka kwechigadzirwa PVC resin uye kugadzirisa kwayo uye zvigadzirwa;inogona kuvandudza kugadzikana kwekupisa kweresin uye kutonga kugovera saizi yechikamu (kureva, gadzirisa density yePVC).Huwandu hweHPMC hunoita 0.025% ~ 0.03% yePVC yakabuda.
Iyo PVC resin yakagadzirwa nepamusoro-mhando HPMC, pamusoro pekuona kuti mashandiro acho anosangana neyakajairwa yenyika, zvakare ine yakanaka zvimiro zvemuviri, yakanakisa particle maitiro uye yakanakisa kunyungudutsa rheological maitiro.
Oindasitiri
Mamwe maindasitiri anonyanya kusanganisira zvekuzora, kugadzirwa kweoiri, zvekugezesa, zvidhori zvemba uye mamwe maindasitiri.
Water soluble
HPMC ndeimwe yemapolima anonyungudika nemvura, uye kunyungudika kwayo kwemvura kune hukama nezviri muboka remethoxyl.Kana izvo zviri muboka remethoxyl zvakaderera, zvinogona kunyungudutswa mune yakasimba alkali uye isina thermodynamic gelation point.Nekuwedzera kwemethoxyl yemukati, inonyanya kunzwisiswa nekuzvimba kwemvura uye inonyungudika mu dilute alkali uye isina simba alkali.Kana iyo methoxyl yemukati iri> 38C, inogona kunyungudika mumvura, uye inogona zvakare kunyungudika mumahalogenated hydrocarbons.Kana periodic acid yakawedzerwa kuHPMC, HPMC inokurumidza kupararira mumvura pasina kubudisa zvinhu zvisinganyunguriki keke.Izvi zvinonyanya kukonzerwa nenyaya yekuti periodic acid ine dihydroxyl mapoka munzvimbo ye ortho pane yakapararira glycogen.
Nguva yekutumira: Zvita-07-2022