Hydroxypropyl Methylcellulose ua cov neeg ua haujlwm sib cais, cov khoom tau txais muaj cov txheej txheem thiab cov khoom xoob, tsim kom pom tseeb thiab ua haujlwm zoo heev.Txawm li cas los xij, kev siv Hydroxypropyl Methylcellulose ib leeg tuaj yeem ua rau muaj qhov sib txawv ntawm cov resin zoo.Kev ua haujlwm tag nrho ntawm cov resin tsis zoo.Kev sib xyaw siv ntawm hydroxypropyl methylcellulose thiab ntau qhov sib txawv alcoholysis degree ntawm polyvinyl cawv tuaj yeem ua rau kev ua haujlwm ntawm cov khoom zoo dua, kev tswj tau yooj yim thiab tib lub sijhawm tuaj yeem txo tus nqi.Tus neeg sawv cev dispersing yog qhov tseem ceeb tshaj plaws uas cuam tshuam cov duab ntawm polyvinyl chloride resin.Qhov me me ntawm qhov nro ntawm cov tshuaj aqueous ntawm cov neeg ua hauj lwm dispersing thiab interfacial nro nrog Vinyl chloride monomer yog, qhov finer lub VCM droplets yuav dispersed.Thiab yog li qhov particle txoj kab uas hla ntawm PVC resin yuav me dua.Qhov muaj zog tiv thaiv muaj peev xwm ntawm tus neeg sawv cev dispersing yog, qhov ze dua qhov tau txais PVC resin hais yuav thiab qhov me dua qhov porosity yuav.Thiab intergranular coalescence kuj nyuaj dua, yog li nws yooj yim los tsim cov resins.
Piv txwv li, nyob rau hauv lub compound dispersion system ntawm PVA thiab HPC, qhov siab dua ntawm alcoholysis degree ntawm PVA yog, qhov ntau dua qhov nro ntawm cov aqueous tov yuav muaj zog thiab muaj zog tiv thaiv muaj peev xwm, thaum ib co concentration ntawm hydroxypropyl methylcellulose muaj. ib tug zoo dispersing nyhuv.Yog li ntawd, siv PVA nrog qib siab alcoholysis ua thawj
dispersing agent, thiab compounding a
Qee qhov nyiaj ntawm hydroxypropyl methylcellulose
Raws li tus neeg sawv cev dispersing rau ncua kev kawm ntawv polymerization, nws yooj yim dua los npaj cov PVC resin uas yuav ua tau raws li qhov yuav tsum tau ntawm particle morphology.Piv txwv li, nyob rau hauv lub compound dispersion system ntawm PVA thiab HPC, qhov siab dua ntawm alcoholysis degree ntawm PVA yog, qhov ntau dua qhov nro ntawm cov aqueous tov yuav muaj zog thiab muaj zog tiv thaiv muaj peev xwm, thaum ib co concentration ntawm hydroxypropyl methylcellulose muaj. ib tug zoo dispersing nyhuv.
Lub sij hawm xa tuaj: Mar-17-2022