I-Hydroxypropyl Methylcellulose njengee-agent ezahlulayo, iimveliso ezifunyenweyo zineengqungquthela ezicwangcisiweyo kunye nezikhululekileyo, ubuninzi obubonakalayo obufanelekileyo kunye nokusebenza kakuhle kokusebenza. Nangona kunjalo, ukusetyenziswa kweHydroxypropyl Methylcellulose yodwa kunokuba negalelo ekungaguqukiyo okuhle kwe-resin nangona kunjalo. Ukusebenza ngokubanzi kwe-resin kubi. Ukusetyenziswa kwekhompawundi ye-hydroxypropyl methylcellulose kunye nedigri ye-alcoholic eyahlukeneyo eyahlukeneyo yepolyvinyl yotywala inokwenza ukusebenza kweemveliso kube ngcono, umgangatho ulula ukulawula kwaye kwangaxeshanye unokunciphisa iindleko. I-arhente yokusabalalisa iyona nto iphambili echaphazela i-particle shape of polyvinyl chloride resin. Okuncinci ukunyanzeliswa komphezulu wesisombululo esinamanzi se-agent echithachithayo ngokubanzi kunye ne-interfacial tension kunye ne-Vinyl chloride monomer kukuba, i-droplets ye-VCM ingcono kakhulu inokusasazwa. Kwaye ke i-particle diameter ye-PVC resin iya kuba ncinane. Okona kunamandla amandla okukhusela e-arhente yokusabalalisa, ngokusondeleyo i-PVC efunyenweyo i-resin particles iya kuba kwaye incinci i-porosity iya kuba. Kwaye i-intergranular coalescence nayo inzima ngakumbi, ngoko kulula ukwenza i-resins.
Umzekelo, kwinkqubo yokusasazwa kwe-compound ye-PVA kunye ne-HPC, kokukhona inqanaba le-alcoalysis ye-PVA liphezulu, kokukhona ukuxinana komphezulu wesisombululo samanzi kuya kuba namandla kwaye kuya kuba namandla amandla okukhusela, ngelixa i-concentration ethile ye-hydroxypropyl methylcellulose isiphumo esihle sokusasazeka. Ke ngoko, ukusebenzisa i-PVA eneqondo eliphezulu le-alcoholsis njengeyona nto iphambili
i-arhente yokusasaza, kunye nokudibanisa a
isixa esithile se-hydroxypropyl methylcellulose
njenge-arhente yokusabalalisa i-polymerization yokumiswa, kulula ukulungiselela i-resin ye-PVC enokuthi ihlangabezane neemfuno ze-particle morphology. Umzekelo, kwinkqubo yokusasazwa kwe-compound ye-PVA kunye ne-HPC, kokukhona inqanaba le-alcoalysis ye-PVA liphezulu, kokukhona ukuxinana komphezulu wesisombululo samanzi kuya kuba namandla kwaye kuya kuba namandla amandla okukhusela, ngelixa i-concentration ethile ye-hydroxypropyl methylcellulose isiphumo esihle sokusasazeka.
Ixesha lokuposa: Mar-17-2022