Nhanganyaya yeHydroxypropyl Methylcellulose (HPMC)
Hydroxypropyl methylcellulose, inowanzo zivikanwa seHPMC, ndeye cellulose derivative yakagadziridzwa kubva kune yakasikwa cellulose.Inoshandiswa zvakanyanya mukuvaka, mishonga, chikafu uye mamwe maindasitiri, kunyanya muPVC indasitiri.Mushonga wakachena, upfu husina kunhuhwirira hune kunyungudika kwemvura kwakanakisa uye huwandu hwezvinhu zvemuviri nemakemikari zvinoita kuti ive yakakodzera kune dzakasiyana siyana.
Kuvandudza rheological properties:
Imwe yemipiro mikuru yeHPMC kuindasitiri yePVC kukanganisa kwayo pane rheological zvivakwa.Iyo inoshanda seye rheology modifier, inokanganisa kuyerera uye deformation yePVC makomisheni panguva yekugadzirisa.Izvi zvinonyanya kukosha mune extrusion uye jekiseni molding maitiro.
Wedzera PVC adhesion:
HPMC inozivikanwa nekugona kwayo kugadzirisa adhesion, iyo muPVC indasitiri inoreva zvirinani kubatana pakati pePVC makomisheni nezvimwe zvinhu.Izvi zvinonyanya kukosha mukugadzirwa kwePVC composites uye blends, uko kusimba kwakasimba kwekubatana kunokosha pakushanda kwakakwana.
Kuchengeta mvura uye kugadzikana:
MuPVC magadzirirwo, zvakakosha kuchengetedza zvemukati zvemvura pamazinga chaiwo panguva yekugadziriswa.HPMC inoshanda sechinhu chekuchengetedza mvura, kudzivirira kuoma nguva isati yakwana uye kuve nechokwadi chekuenderana kwemvura.Izvi zvinonyanya kukosha mumashandisirwo apo iyo hydration state yePVC compound inokanganisa maitiro echigadzirwa chekupedzisira.
Inodzorwa kuburitsa zvikumbiro:
HPMC inowanzoshandiswa pamwe chete nePVC mune inodzorwa kuburitsa mafomati.Izvi zvinowanzoitika mumashandisirwo ekurima uko maPVC masisitimu anoshandiswa kudzora kuburitswa kwefetereza kana mishonga yezvipembenene.Iyo inotsigirwa uye inofungidzira kuparara maitiro eHPMC inofambisa inodzorwa kuburitswa.
Impact pane PVC film properties:
Kuwedzera HPMC kune PVC maumbirwo anogona kukanganisa zvimiro zvemugumisiro firimu.Izvi zvinosanganisira zvinhu zvakaita sekuchinjika, kujeka uye simba remagetsi.Zvichienderana nezvinodiwa zvechigadzirwa chekupedzisira, HPMC inogona kugadzirwa kuti ipe iyo PVC firimu iyo inodiwa zvivakwa.
Tembiricha uye UV kuramba:
Zvigadzirwa zvePVC zvinowanzodiwa kuti zvimire zvakasiyana-siyana zvemamiriro ekunze.HPMC inovandudza kuita kwese kwePVC nekuwedzera kuramba kwayo kushanduka kwekushisa uye nemwaranzi yeUV.Izvi zvinonyanya kukosha mumashandisirwo ekunze uko PVC inoratidzwa kune chiedza chezuva uye mamiriro ekunze.
Binders uye suspending agents:
HPMC inoshandiswa sebhainda muPVC maumbirwo, ichibatsira mukubatana kwechidimbu uye kukurudzira kuumbwa kweyunifomu clumps.Pamusoro pezvo, inoshanda senge inomisa mumiriri, ichidzivirira zvimedu kubva pakugadzirisa uye kuve nechokwadi chekugovera yunifomu mukati mePVC matrix.
Optimize recipe ratio:
Kushanda kweHPMC muPVC maapplication kazhinji kunoenderana nekuumbwa reshiyo.Kuenzanisa kusungirirwa kweHPMC nezvimwe zvinowedzera uye PVC resin kwakakosha kuti uwane izvo zvinodiwa zvechigadzirwa chekupedzisira.
Kuenderana nezvimwe zvinowedzera:
Kuenderana nezvimwe zvinowedzera, plasticizers uye stabilizers chinhu chakakosha chekubatanidza HPMC muPVC maumbirwo.Kuve nechokwadi chekuti HPMC inodyidzana pamwe chete nezvimwe zvikamu zvakakosha kuchengetedza kuita kwese uye kugadzikana kwePVC komputa.
Processing conditions:
Mamiriro ekugadzirisa, kusanganisira tembiricha uye kudzvanywa panguva yekuwedzeredza kana kuumbwa, inogona kukanganisa kushanda kweHPMC.Kunzwisisa kugadzikana kwemafuta uye kugadzirisa zvinodiwa zveHPMC kwakakosha pakugadzirisa maitiro ekugadzira.
mukupedzisa
Muchidimbu, hydroxypropyl methylcellulose inobata basa rakasiyana-siyana muindasitiri yePVC, inobatsira kuvandudza maitiro ekugadzirisa, kunamatira, kuchengetedza mvura uye kushanda kwese kwePVC-based products.Sezvo indasitiri iri kuramba ichishanduka, HPMC yakasarudzika zvivakwa ingangoramba ichishandiswa mukuvandudza maapplication uye kufambira mberi muPVC tekinoroji.Sezvo vaongorori nevagadziri vanoongorora zvakadzika mukubatana pakati peHPMC nePVC, mukana wekugadzira kutsva uye yakagadziridzwa zvigadzirwa zvePVC zvakakura.
Nguva yekutumira: Zvita-12-2023