Ngokuvamile, ukuphuzi kwemikhiqizo yepulasitiki kubangelwa ukuguga noma ukuwohloka kwezinto.Ngokuvamile,PPkubangelwa ukuguga (ukuwohloka).Ngenxa yokuba khona kwamaqembu aseceleni ku-polypropylene, ukuzinza kwayo akukuhle, ikakhulukazi esimweni sokukhanya.Ngokuvamile, i-stabilizer yokukhanya iyengezwa.NgokwePE, njengoba singekho isisekelo esiseceleni, azikho izimo eziningi zokuphuzi ekucutshungulweni okujwayelekile noma ukusetshenziswa kwangaphambi kwesikhathi.I-PVCizophenduka ibe phuzi, ehlobene eduze nefomula yomkhiqizo.Ukukubeka ngokusobala, i-oxidation.Ingaphezulu lamanye ama-masterbatches kulula uku-oxidized, ngakho-ke kuyadingeka ukwenza ukwelashwa okungaphezulu kuma-masterbatches.
Ngaphezu kwezithasiselo ezimbi nokungcola ohlelweni, ngicabanga ukuthi kubangelwa ukuguga.Ukwengeza amasistimu e-antioxidant afanelekile kanye nama-anti ultraviolet ejenti angathuthukisa ukuphuzi kwe-PE ne-PP, kodwa amasistimu amaningi avimbele i-phenolic antioxidant ngokwawo azoletha ukuphuzi okuncane.Ngaphezu kwalokho, ezinye izinhlelo ze-antioxidant nama-anti ultraviolet agents zinemiphumela yokumelana, ngakho-ke qaphela lapho uzisebenzisa.I-polymer lubricant yengezwa ukwenza ifilimu ye-polymer fluoropolymer egelezayo odongeni lomshini, ithuthukise ukusebenza kwe-extrusion processing, ingcindezi ye-extrusion kanye nezinga lokushisa lokucubungula le-polyolefin resin, ithuthukise ikhwalithi yomkhiqizo kanye nokukhiqiza, ukunciphisa izindleko zokukhiqiza, ukunciphisa noma ukuqeda ukuphuka kwe-ncibilika, futhi kunciphise izinsalela. isilinganiso.
1. Kukhona impahla eluhlaza ebizwa nge-plasticizer emikhiqizweni yepulasitiki, edlala indima enkulu yokuguga, kepha izoshintshashintsha emoyeni, ngakho-ke lapho i-plasticizer incishisiwe, umbala uzofiphala, futhi ukunwebeka kwepulasitiki nakho kuzokwehla. , okuzokwenza kube brittle futhi kubephuzi.
2. Ukuphuzi kwamabhokisi epulasitiki ngemva kokukhiqizwa noma ukusetshenziswa isikhathi eside kungenxa yokuguga kwezinto ezisetshenziswayo, noma kungase kukhiqizwe ngemva kokuwohloka.Into ebaluleke kakhulu amabhokisi epulasitiki amhlophe, njengamabhokisi emali amhlophe nemiphongolo yepulasitiki.
3. Isizathu esivamile ukuguga kwemikhiqizo yepulasitiki.Isizathu siwukuthi i-polypropylene inokuhlasela ohlangothini oluphezulu.Ukuzinza kwayo akukuhle kakhulu, ikakhulukazi endabeni yokomisa isikhathi eside.
4. Ngakho-ke, ukwenza amapulasitiki amhlophe ahlale isikhathi eside, zama ukugwema ukukhanya okuqinile.Uma ihlobene nokudla, zama ukusebenzisa amapulasitiki asobala futhi angenambala.Uma ufuna ukuqeda lesi simo, ungangeza inani elithile le-stabilizer ebushelelezi.
Isikhathi sokuthumela: Sep-09-2022