PVC resin inowanikwa kubva ku polymerization haina kugadzikana zvakanyanya nekuda kwekudzika kwayo kwekushisa kugadzikana & yakakwirira kunyungudika viscosity.Inoda kugadziridzwa isati yagadziriswa kuita zvigadzirwa zvapera.Zvimiro zvaro zvinogona kukwidziridzwa / kugadziridzwa nekuwedzera akati wandei ekuwedzera, senge kupisa stabilizers, UV stabilizers, plasticizers, kukanganisa modifiers, fillers, flame retardants, pigments, nezvimwe.
Kusarudzwa kweizvi zvinowedzera kuwedzera zvivakwa zvepolymer zvinoenderana nekupera kwechinodiwa chekushandisa.Semuyenzaniso:
1.Plasticizers (Phthalates, Adipates, Trimellitate, etc.) inoshandiswa seanonyorovesa vamiririri kuti vawedzere rheological pamwe ne mechanical performance (kuoma, simba) zvevinyl zvigadzirwa nekusimudza tembiricha.Zvinhu zvinokanganisa kusarudzwa kweplasticizers yevinyl polymer ndezvi:Polymer kugarisana; yakaderera Volatility; mutengo.
2.PVC ine kugadzikana kwekushisa kwakanyanya uye kugadzikana kunobatsira kudzivirira kuparara kwepolymer panguva yekugadzirisa kana kutarisana nechiedza.Kana yaiswa mukupisa, mavhinyl compounds anotanga kuzvi-accelerating dehydrochlorination reaction uye izvi zvinogadzika zvinoderedza iyo HCl inogadzirwa inosimudzira hupenyu hwepolymer.Zvinhu zvinofanirwa kutariswa paunenge uchisarudza kupisa stabilizer ndezvi: technical zvinodiwa; regulatory Kubvumirwa; mutengo.
3.Mafiritsi anowedzerwa muPVC mishonga nokuda kwezvikonzero zvakasiyana-siyana.Nhasi, kuzadza kunogona kuve kwechokwadi kwekuwedzera kwekuita nekuunza kukosha munzira nyowani uye dzinonakidza pamutengo wakaderera wekugadzira.Ivo vanobatsira ku: kuwedzera kuomarara uye simba, kuvandudza maitiro ekuita, kuwedzera ruvara, opacity uye conductivity nezvimwe.
Calcium carbonate, titanium dioxide, ivhu rakakamurwa, girazi, talc nezvimwe ndiwo marudzi akajairika emafiza anoshandiswa muPVC.
4.External lubricant inoshandiswa kubatsira mutsetse wakatsetseka wePVC kunyunguduka kuburikidza nemichina yekugadzirisa.nepo mafuta emukati anoderedza kunyunguduka viscosity, kudzivirira kupisa uye kuve nechokwadi chemavara akanaka echigadzirwa.
5.Zvimwe zvinowedzera sezviyamuro zvekugadzirisa, zvinogadzirisa zvinogadzirisa, zvinowedzerwa kuti zviwedzere mechanical pamwe nepamusoro pePVC.
Nguva yekutumira: Zvita-13-2022