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 kweresin 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, kwi-compound dispersion system ye-PVA kunye ne-HPC, kokukhona iqondo le-alcoholsis le-PVA liphezulu, kokukhona ukuxinana komphezulu wesisombululo samanzi kuya kuba namandla kwaye kuya kuba namandla okukhusela, ngelixa i-concentration ethile ye-hydroxypropyl methylcellulose inesiphumo 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, kwi-compound dispersion system ye-PVA kunye ne-HPC, kokukhona iqondo le-alcoholsis le-PVA liphezulu, kokukhona ukuxinana komphezulu wesisombululo samanzi kuya kuba namandla kwaye kuya kuba namandla okukhusela, ngelixa i-concentration ethile ye-hydroxypropyl methylcellulose inesiphumo esihle sokusasazeka.
Ixesha lokuposa: Mar-17-2022