1, Zvinhu zvitatu zvikuru zvinokanganisa kushanda kweCPE
Chekutanga, imhando yeCPE inoshandiswa. CPE yakawanikwa kubva kune yakakwira molecular uremu polyethylene ine yakakwira viscosity uye kusimba kusimba, asi kunamatira pakati peCPE iyi nePVC resin kwakadzikira. CPE yakawanikwa kubva ku low molecular weight polyethylene ine low viscosity uye tensile simba, uye CPE inowanikwa kubva kune yakakwirira-density polyethylene ine yakanaka yekupisa.
Chechipiri, ukuru hwezvimedu zvenyama. Kana iyo particle size idiki zvakanyanya, zviri nyore kugadzira jelly kana clumpy CPE, uye kana saizi yechikamu yakawandisa, kugoverwa kweklorini hakuna kuenzana.
Zvakare, ndiyo nhanho yeCPE chlorination. Kana iyo chlorine yemukati iri pasi pe25%, haina kuenderana nePVC uye haigone kushandiswa sechigadziriso; Kana iyo chlorine yemukati yakakura kupfuura 40%, ine kugarisana kwakanaka nePVC uye inogona kushandiswa seyakasimba plasticizer, isingakodzeri seyakagadziriswa shanduko; CPE ine chlorine inokwana 36-38% ine elasticity yakanaka uye kuenderana nePVC, zvichiita kuti ishandiswe zvakanyanya sechinhu chinogadzirisa chePVC. Parizvino, CPE ine chlorine content ye35% inowanzoshandiswa. CPE ine chlorine yemukati inosvika 35% ine yakaderera crystallinity uye girazi shanduko tembiricha, yakanaka rabha elasticity, uye kuenderana kwakakodzera nePVC. Inoshandiswa zvakanyanya senge inogadzirisa gadziriso yePVC yakaoma zvigadzirwa.
2, Mhedzisiro yeCPE Kuwedzera paPVC
Kana huwandu hwekuwedzera huri pasi pemaminitsi e10, simba rekuita rePVC rinowedzera nokukurumidza nekuwedzera kweCPE, asi kuwedzera kuwedzera kuwanda kweCPE kunoguma nekuvandudzika kuduku musimba rekukanganisa kwePVC. Naizvozvo, sechinhu chinopikisa mumiririri, huwandu hwakakodzera hweCPE huchawedzerwa 8-10 zvikamu. Sezvo CPE ichiwedzera, simba rekusimba rePVC musanganiswa rinoramba richidzikira, nepo kureba panguva yekuzorora kunowedzera. Kana kuomarara kuchiratidzwa sechigadzirwa chekusimba kwesimba uye kureba panguva yekuzorora, zviri pachena kuti kuoma kwePVC kuchawedzera zvakanyanya nekuwedzera kweCPE yekuwedzera.
Nguva yekutumira: Aug-01-2023
