Yiziphi izinto zokwakha zemikhiqizo yepulasitiki?
Imikhiqizo yepulasitiki ihlukaniswe ikakhulukazi izinhlobo ezimbili ze-thermoplastic kanye ne-thermosetting, okulandelayo yisingeniso esiningiliziwe, ngithemba ukusiza.
1. I-Thermoplastic
I-Thermoplastics, eyaziwa nangokuthi ama-thermoplastic resins, yisigaba esiyinhloko samapulasitiki.Zenziwe ngezinto zokwenziwa ze-polymer ezingageleza komunye nomunye ngokuncibilika ngokushisa futhi zikwazi ukuphulukisa futhi.Lezi zinto ngokuvamile zinesisindo samangqamuzana aphezulu futhi zinesakhiwo seketango lamangqamuzana eliphindaphindayo.I-Thermoplastics ingacutshungulwa ngokubunjwa komjovo, i-extrusion, i-blow molding, i-calendering nezinye izinqubo ukwenza izingxenye nemikhiqizo yobumo nobukhulu obuhlukahlukene.
(1) I-Polyethylene (PE) : I-PE ingenye yepulasitiki evamile, esetshenziselwa kakhulu ukupakisha, amapayipi, ama-insulators ocingo nezinye izinhloso.Ngokwesakhiwo sayo samangqamuzana nokuminyana, i-PE ingahlukaniswa ibe yi-polyethylene ephezulu (HDPE), i-polyethylene ephansi (LDPE) kanye ne-linear low density polyethylene (LLDPE).
I-Polypropylene (PP) : I-PP iphinde ibe ipulasitiki evamile, evame ukusetshenziswa ezitsheni, amabhodlela, namadivayisi wezokwelapha.I-PP iyipulasitiki elingana nekristalu, ngakho iqinile futhi isobala kakhulu kune-PE.
(3) I-Polyvinyl chloride (PVC) : I-PVC ingenye yokukhiqiza okuphezulu kakhulu kwamapulasitiki emhlabeni, asetshenziswa kakhulu ezintweni zokwakha, izinsimbi zokufaka ucingo, ukupakisha kanye nemishini yezokwelapha neminye imikhakha.I-PVC ingaba nombala futhi imelana namakhemikhali amaningi.
(4) I-Polystyrene (PS) : I-PS ivame ukusetshenziselwa ukwenza izinto zokupakisha ezingasindi, ezibonisa ngale, njengeziqukathi zokudla namabhokisi okugcina.I-PS nayo isetshenziswa kabanzi ukwenza igwebu, njengegwebu le-EPS.
I-Acrylonitrile-butadiene-styrene copolymer (ABS) : I-ABS iyipulasitiki eqinile, engathinteki evame ukusetshenziswa ukwenza izibambo zamathuluzi, izindlu zikagesi, nezingxenye zezimoto.
(6) Abanye: Ngaphezu kwalokho, kunezinye izinhlobo eziningi ze-thermoplastics, njenge-polyamide (PA), i-polycarbonate (PC), i-polyformaldehyde (POM), i-polytetrafluoroethylene (PTFE) njalonjalo.
2, ipulasitiki ye-thermosetting
Amaplastiki e-thermosetting ayikilasi elikhethekile lamapulasitiki, ahlukile kuma-thermoplastics.Lezi zinto azithambisi futhi azigelezi lapho kushisa, kodwa zelashwa ukushisa.Amapulasitiki e-thermosetting ngokuvamile anamandla aphezulu nobulukhuni futhi afanele izinhlelo zokusebenza ezidinga ukuqina namandla amakhulu.
I-Epoxy resin (EP) : I-Epoxy resin iyipulasitiki eqinile ye-thermosetting esetshenziswa kakhulu embonini yokwakha, kagesi kanye nezimoto.Izinhlayiya ze-epoxy zingasabela ngamakhemikhali nezinye izinto ukuze zenze izinto ezinamathelayo ezinamandla kanye nezingubo.
(2) I-Polyimide (PI) : I-Polyimide iyipulasitiki ekwazi ukumelana nokushisa engagcina izici zayo emazingeni okushisa aphezulu.Isetshenziswa kakhulu ezimbonini ze-aerospace, electronics kanye nezimoto ukwenza izingxenye ezimelana nezinga lokushisa eliphezulu kanye nama-coatings.
(3) Abanye: Ngaphezu kwalokho, kunezinye izinhlobo eziningi zepulasitiki ezishisayo, njenge-phenolic resin, i-furan resin, i-polyester engasetshenzisiwe nokunye.
Isikhathi sokuthumela: Dec-07-2023