Umkhiqizo wenziwe ngeindwangu engalukiwe. Yisizukulwane esisha sezinto ezinobungani nemvelo. Ayinawo umswakama, iyaphefumula, iyaguquguquka, ilula, ayishisi, kulula ukubola, ayinaboli futhi ayicasuli, inombala ocebile, intengo iphansi futhi ingaphinde isetshenziswe.
Izinto zingabola ngokwemvelo ngemva kokubekwa ngaphandle izinsuku ezingama-90. Zisebenza iminyaka efinyelela kwemi-5. Azinabo ubuthi, azinaphunga futhi azinazo izinto ezisele uma zishiswa, ngakho azingcolisi imvelo futhi ziqashelwa emhlabeni wonke njengomkhiqizo onobungani nemvelo ovikela imvelo yomhlaba.
Izinzuzo:
1. Isisindo esincane: I-polypropylene resin iyinto eyinhloko yokukhiqiza. Amandla adonsela phansi angu-0.9 kuphela, izingxenye ezintathu kwezinhlanu kuphela zekotini, ethambile futhi ezwakala kahle.
2. Akunabo ubuthi, akucasuli: Umkhiqizo ukhiqizwa ngokuhambisana nezinto zokusetshenziswa zokudla zezinga le-FDA, awunazo ezinye izingxenye zamakhemikhali, usebenza kahle, awunabo ubuthi, awunaphunga, futhi awucasuli isikhumba.
3. Izinto ezilwa namagciwane kanye namakhemikhali: I-Polypropylene iyinto ethambile ngamakhemikhali, engawuvimbi umzimba, futhi ingahlukanisa amabhaktheriya nezinambuzane oketshezini. Ukugqwala kwama-antibacterial, i-alkali, kanye nemikhiqizo eqediwe akuthinti amandla ngenxa yokuguguleka.
4. Izakhiwo ezinhle zomzimba: Yenziwa ngokuphotha i-polypropylene ngqo ibe yi-mesh, futhi amandla omkhiqizo angcono kunalawo emikhiqizo evamile ye-staple fiber, amandla awaqondi, futhi amandla e-longitudinal kanye ne-crossover afana.
5. Ngokuphathelene nokuvikelwa kwemvelo, izinto zokusetshenziswa zezindwangu eziningi ezingezona ezilukiwe ezisetshenziswayo yi-polypropylene, kanti izinto zokusetshenziswa zezikhwama zepulasitiki yi-polyethylene. Nakuba lezi zinto ezimbili zinamagama afanayo, zinezakhiwo zamakhemikhali ezihlukene kakhulu. Isakhiwo sama-molecule amakhemikhali se-polyethylene sinokuzinza okukhulu futhi kunzima kakhulu ukusonakalisa. Ngakho-ke, kuthatha iminyaka engama-300 ukuthi isikhwama sepulasitiki sibole. Isakhiwo samakhemikhali se-polypropylene asiqinile, futhi uchungechunge lwama-molecule lungaphulwa kalula, ukuze lonakale ngempumelelo. Futhi ngendlela engeyona enobuthi emjikelezweni olandelayo wemvelo,isikhwama sokuthenga esingalukiweingabola ngokuphelele zingakapheli izinsuku ezingama-90. Ngaphezu kwalokho, isikhwama sokuthenga esingalukiwe singasetshenziswa kabusha izikhathi ezingaphezu kweziyi-10, kanti izinga lokungcoliswa kwemvelo ngemva kokulahlwa liyi-10% kuphela yesikhwama sepulasitiki.
Isikhathi sokuthunyelwe: Julayi-30-2019