Izithasiselo ezintsha zezithasiselo zepulasitiki

I-PVC processing modifier YMs - imikhiqizo yochungechunge yinkampani ezoba ubuchwepheshe be-polymer synthesis obuphambili kanye nomnyango waseyunivesithi we-bai cheng chemical engineering laboratory yobuchwepheshe be-nano, inhlanganisela yocwaningo nentuthuko yohlobo olusha lwe-PVC yokucubungula i-AIDS, iyayisebenzisa ngokuphelele okwenziwe yi-nanometer kukhulu kunendawo engaphezulu, izici zamandla angaphezulu amakhulu zikhulu, ukunqoba insiza yokucubungula ye-PVC enesici sokusebenza kwepulasitiki ekushintshaneni kokushisa okuphansi. Enqubweni yokucubungula, ukungezwani okuqinile kwendawo yama-nanomaterial kuguqulwa kube ukungqubuzana kwangaphakathi nama-molecule e-PVC, ngoba lokhu kungqubuzana kwangaphakathi kukhuphuka ngokuncipha kwezinga lokushisa, okuthuthukisa inkinga yokuthi ukubakhona kwepulasitiki kwe-ACR yendabuko kwehla kakhulu ngokuncipha kwezinga lokushisa.
Uma kuqhathaniswa ne-ACR yendabuko, imikhiqizo yochungechunge lwe-HLN inezici ezilandelayo:
1) Ukuqina okungaguquki kungcono kunezinsiza zokucubungula zendabuko.
2) Lapho izinga lokushisa lishintsha, amandla we-shear ayashintsha ngokufanele, angenza ukuthi i-plasticization degree ye-PVC ingashintshi ngokuyisisekelo.
3) kungaba ngcono kakhulu ukusebenza ukucutshungulwa PVC, ngcono ebusweni sekugcineni imikhiqizo. Test1 Indlela yokuhlola
1) Ukuhlola okubonakalayo kokubukeka
2) Okuguquguqukayo kukalwe ngokuya nge-GB / T2914
3) Usayizi wezinhlayiyana ulinganiswe ngokwe-GB / 2916
4) Imishini ingalinganiswa nge-RM-200 torque rheometer, ijubane lingu-35rpm, izinga lokushisa lingu-165oC, nenani lokuphakela lingu-61g;
Ifomula yokuhlola ukusebenza: PVC, 100g; I-CaCO3, 5 g; I-TiO2, 4 g; PE, 0.15 g; I-Stearic acid, i-0.2g; Usawoti, 2.5g; Ukuhola kanzima, 1.5g; I-calcium eqinile, i-0.7g; I-CPE, 9 g; Icubungula usizo, 2g.
⒉2 Ukucubungula izakhiwo zokucubungula i-AIDS
Umsebenzi wokusebenza kwe-PVC ukukhulisa ama-molecule angaphakathi enhlanganisela nokungqubuzana phakathi kwenhlanganisela nesikulufu, indawo eyisilinda, ukuze kuthuthukiswe i-torque yamanje ne-torque yemishini yokucubungula i-PVC, i-PVC ekushiseni okushisa okuphansi kakhulu okungenzeka kufane uku-oda ukuthola izinga eliphansi kakhulu lokubola, ukubukeka nezakhiwo zemishini ye-PVC yemikhiqizo eqinile. Uma ukushisa kokucubungula kwe-PVC kuncishisiwe, kukhula inani eliyinsalela lokuzinza kumikhiqizo ye-PVC, lehla inani le-HCI esele, futhi ngcono ukuzinza noma ukumelana nesimo sezulu kwemikhiqizo! Futhi isimo sokucubungula okushisa okuphansi ukuqinisekisa ukuthi i-shear ephezulu, okungukuthi, kufanele iqinisekise ukuphakama kwamanje ne-torque ephezulu. Ngakho-ke, ukusebenza kwe-PVC yokucubungula i-AIDS kumele kuhlolwe nge-torque nangesikhathi samanje, futhi imishini yokuhlola engabonisa i-torque yi-torque rheometer, ngakho-ke inkampani enkombeni yekhwalithi ye-HLN - uchungechunge lwemikhiqizo, hhayi nge-viscosity kodwa nge-rheometer ukuveza ukusebenza kokucubungula ingculazi. Yonke imikhiqizo ihlolwa nge-rheometer ngaphambi kokushiya ifektri. Uma ama-rheometer curves ahlangana, ukusebenza kokucubungula amaqoqo amabili wemikhiqizo kuyefana, ukuze kuqinisekiswe ukuzinza kwamakhasimende enqubeni yokukhiqiza nokusetshenziswa.


Isikhathi Iposi: Jan-13-2021