Ipulasitiki ayikwazi ukuthatha indawo yezinto zensimbi, kodwa izakhiwo eziningi zepulasitiki ziye zadlula ama-alloys.Futhi ukusetshenziswa kwepulasitiki kudlule inani lensimbi, ipulasitiki kungathiwa ihlobene eduze nempilo yethu.Umndeni wepulasitiki ungaba ocebile futhi ojwayelekile izinhlobo eziyisithupha zamapulasitiki, masiziqonde.
1. Izinto ze-PC
I-PC inokucaca okuhle kanye nokuzinza okujwayelekile kokushisa.Okubi ukuthi akuzizwa kahle, ikakhulukazi ngemva kwesikhathi sokusetshenziswa, ukubukeka kubukeka "kungcolile", futhi kuyipulasitiki yobunjiniyela, okungukuthi, i-plexiglass, njenge-polymethyl methacrylate.i-polycarbonate, njll.
I-PC yinto esetshenziswa kakhulu, njengamakesi omakhalekhukhwini, ama-laptops, njll., ikakhulukazi ukwakhiwa kwamabhodlela obisi, izinkomishi zasemkhathini, nokunye okunjalo.Amabhodlela ezingane abe yimpikiswano eminyakeni yamuva nje ngoba aqukethe i-BPA.I-bisphenol A eyinsalela ku-PC, izinga lokushisa liphezulu, likhishwa kakhulu futhi liyashesha isivinini.Ngakho-ke, amabhodlela amanzi e-PC akufanele asetshenziselwe ukubamba amanzi ashisayo.
2. PP impahla
Ipulasitiki ye-PP i-crystallization ye-isotactic futhi inokuqina okuhle kokushisa, kodwa impahla iyaphuka futhi kulula ukuphuka, ikakhulukazi i-polypropylene material.Ibhokisi lesidlo sasemini le-microwave lenziwe ngale nto, elimelana nezinga lokushisa eliphakeme elingu-130°C futhi lingacaceli kahle.Leli ukuphela kwebhokisi lepulasitiki elingafakwa kuhhavini we-microwave futhi lingasetshenziswa kabusha ngemva kokuhlanza ngokucophelela.
Kumele kuqashelwe ukuthi, kwamanye amabhokisi okudla kwasemini e-microwave, umzimba webhokisi wenziwe ngo-No. 05 PP, kodwa isembozo senziwe nge-No. 06 PS (polystyrene).Ukucaca kwe-PS kuyisilinganiso, kodwa akumelani nokushisa okuphezulu, ngakho-ke akukwazi ukuhlanganiswa nomzimba webhokisi.Faka kuhhavini ye-microwave.Ukuze ube ohlangothini oluphephile, susa isivalo ngaphambi kokufaka isitsha kuhhavini ye-microwave.
3. PVC impahla
I-PVC, eyaziwa nangokuthi i-PVC, i-polyvinyl chloride resin, evame ukusetshenziselwa ukwenza amaphrofayili wobunjiniyela kanye nemikhiqizo yepulasitiki yokuphila kwansuku zonke, njengama-raincoats, izinto zokwakha, amafilimu epulasitiki, amabhokisi epulasitiki, njll. Ipulasitiki enhle kakhulu kanye nenani eliphansi.Kodwa ingamelana kuphela nezinga lokushisa eliphakeme elingu-81 ℃.
Izinto ezinobuthi neziyingozi ezivame ukukhiqiza imikhiqizo yepulasitiki yale nto zivela ezicini ezimbili, enye i-monomolecular vinyl chloride engenziwanga i-polymer ngokugcwele ngesikhathi sokukhiqiza, kanti enye yizinto eziyingozi ku-plasticizer.Lezi zinto ezimbili kulula ukuzithola uma uhlangabezana nezinga lokushisa eliphezulu kanye namafutha.Ngemva kokuba izinto ezinobuthi zingena emzimbeni womuntu nokudla, kulula ukudala umdlavuza.Njengamanje, iziqukathi zalolu lwazi bezingavamile ukusetshenziselwa ukupakisha ukudla.Futhi, ungakuvumeli kushise.
4. PE impahla
I-PE iyi-polyethylene.Ifilimu yokudla, ifilimu yepulasitiki, njll. zonke lezi zinto.Ukumelana nokushisa akunamandla.Ngokuvamile, ukugoqa kwepulasitiki okufanelekayo kwe-PE kuzoba nomthelela oshisayo wokuncibilika lapho izinga lokushisa lidlula i-110 ° C, lishiya amanye amalungiselelo epulasitiki angakwazi ukubola umzimba womuntu.
Ngaphezu kwalokho, lapho ukudla kufudunyezwa ngokugoqa ipulasitiki, amafutha ekudleni angakwazi ukuncibilikisa kalula izinto eziyingozi eziseplastikini.Ngakho-ke, lapho ukudla kufakwa kuhhavini we-microwave, ukugoqa kwepulasitiki okugoqiwe kufanele kukhishwe kuqala.
5. PET impahla
I-PET, okungukuthi, i-polyethylene terephthalate, amabhodlela amanzi amaminerali namabhodlela esiphuzo se-carbonated konke kwenziwa ngale nto.Amabhodlela esiphuzo awakwazi ukugaywa kabusha ukuze abambe amanzi ashisayo.Le nto ayizwani nokushisa kufika ku-70°C futhi ifaneleka kuphela iziphuzo ezifudumele noma eziqandisiwe.Kulula ukuwohloka uma kugcwele uketshezi olushisa kakhulu noma kushisa, futhi kukhona izinto eziyingozi emzimbeni womuntu.
6. Impahla ye-PMMA
I-PMMA, okungukuthi, i-polymethyl methacrylate, eyaziwa nangokuthi i-acrylic, i-acrylic noma i-plexiglass, ibizwa ngokuthi amandla okucindezela e-Taiwan, futhi ngokuvamile ibizwa ngokuthi i-agaric glue e-Hong Kong.Inokucaca okuphezulu, intengo ephansi, kanye nokwenza kalula.nezinye izinzuzo, kuyinto evame ukusetshenziswa ingilazi esikhundleni impahla.Kodwa ukumelana nokushisa kwayo akuphakeme, akunabuthi.Isetshenziswa kabanzi embonini yokukhiqiza ilogo yokukhangisa.
