Ⅰ Izinhlobo zezikhwama zepulasitiki
Isikhwama sepulasitiki siyinto yokwenziwa kwe-polymer, selokhu yasungulwa, kancane kancane isiyingxenye ebalulekile yokuphila kwansuku zonke yabantu ngenxa yokusebenza kwayo okuhle kakhulu. Izidingo zabantu zansuku zonke, izinto zesikole nezomsebenzi nokunye konke kunomthunzi wepulasitiki. Hhayi kuphela ezidingweni zansuku zonke, ipulasitiki isetshenziswa kabanzi ezimbonini ezahlukahlukene ezifana nezokwelapha nezokwakha. Ikakhulukazi, izikhwama zepulasitiki, ezinesisindo esincane, ezinkulu ngomthamo futhi zingagcina izinto ezihlukahlukene, seziphenduke umsizi obalulekile nobalulekile ekuphileni kwabantu. Nazi ezinye zezigaba ezihlukahlukene zezikhwama ezenziwe ngepulasitiki.
1.Isikhwama se-Vest
Ngenxa yokuthi ukwakheka kwezinye izikhwama zepulasitiki nokuphila kwabantu kwansuku zonke ukugqoka i-undershirt kufana kakhulu, ngakho-ke abantu bazokubiza ngokuthi isikhwama se-undershirt, singabizwa nangokuthi isikhwama se-vesti. Lolu hlobo lwesikhwama ngokuvamile luzosebenzisa into ebizwa ngokuthi i-PO njengento eyinhloko yokukhiqiza. Ngoba inqubo yokukhiqiza isikhwama se-vest ilula futhi iguquguquka, ingasetshenziswa ezitolo ezinkulu, ezitolo ezinkulu, ezitolo ezithengisa izinto ezilula, izimakethe ezithengisa izinto ezithengiswayo nezinye izindawo, ngakho-ke kwaba enye yezinto ezibalulekile ekuphileni kwansuku zonke kwabantu. Kodwa-ke, ngenxa yenkinga yezikhwama ze-undershirt izinto zokusetshenziswa, okuholela ekungcolisweni kwemvelo okukhulu, ngemuva kokumiswa kokuvinjelwa kwepulasitiki, izwe laqala ukukhawulela nokuvimbela ukukhiqizwa nokukhiqizwa kwe-barbed enjalo.
2.Ukuphatha izikhwama
Lesi sikhwama sihlukile kunesikhwama sehembe langaphansi, senziwe ngento engenabuthi, engangcolisi, ephephile futhi ehlanzekile, ngeke kubangele ukungcola okukhulu. Ngaphezu kwalokho, isikhwama sokugqoka ngokuvamile sisetshenziswa ezingutsheni, izipho, izinto zokubhala nokunye okubukekayo, okupakishwayo okusemfashinini nokubukeka kahle, ukuphatheka kalula, okuthandwa abantu.
3.Izikhwama zokuzinamathisela
Izikhwama zokuzibamba zibizwa nangokuthi izikhwama ezinamathelayo, izikhwama zepulasitiki ezizibambayo, i-OPP, i-PE nezinye izinto zokukhiqiza izinto eziyinhloko. Ngenxa yomphumela omuhle wokuphrinta wezikhwama zokuzibamba, ungaphrinta amaphethini ahlukahlukene, ngakho-ke isitshalo sokukhiqiza nokucubungula bekulokhu ukupakishwa kwangaphandle kwemikhiqizo eminingi, njengokudla, ubucwebe, njll. Ngoba izikhwama zokuzibamba hhayi ukuqina okwanele ngokwanele, kulula ukudatshulwa, kodwa futhi kukhiqizwe futhi kucutshungulwe ezikhwameni eziningi zokupakisha ukudla, ekukhiqizeni izikhwama ezinjalo, ukusetshenziswa okujwayelekile kokuvalwa kokunamathisela.
Kunezinye izinhlobo eziningi zezikhwama zepulasitiki, kuye ngokuthi yiziphi izici zokuhlukaniswa.
Ⅱ Izinhlobo ezijwayelekile zezinto
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Izikhwama zepulasitiki, izikhwama zokupakisha zepulasitiki seziphenduke izinto ezibalulekile empilweni yabantu yokukhiqiza, izikhwama zepulasitiki zamanje, izikhwama ze-PVC, izikhwama eziyinhlanganisela, izikhwama ze-vacuum, izikhwama zokupakisha ze-PVC, ifilimu yepulasitiki nezinye izinhlobo zokufunwa kwemakethe yemikhiqizo yepulasitiki evame ukusetshenziswa, ngakho umthamo wokukhiqiza. nayo inkulu kakhulu, ekukhiqizeni nasekukhiqizeni izikhwama zokupakisha zepulasitiki, izimboni zepulasitiki ngokuvamile zizokhetha ukuthi yiziphi izinto ezisetshenziswa kakhulu?
Okokuqala, i-polyethylene yisamba esikhulu kunazo zonke sezikhwama zepulasitiki, imikhiqizo yepulasitiki, into ebaluleke kakhulu, okwamanje iyimpahla yesikhwama sokuthintana ekahle kunazo zonke emhlabeni, imakethe yezikhwama zokupakisha ukudla ngokuvamile zenziwe ngezinto ezibonakalayo. I-polyethylene ekhanyayo futhi esobala, inobufakazi obufanele bomswakama, ukumelana komoya-mpilo, ukumelana ne-asidi, ukumelana ne-alkali, ukuvala ukushisa nezinye izinzuzo, futhi okungewona ubuthi, okunganambitheki, nokunganuki, ngokuhambisana nezindinganiso zempilo zokupakishwa kokudla.
Okwesibili, i-polyvinyl chloride / PVC, okwamanje iwuhlobo lwepulasitiki lwesibili ngobukhulu emhlabeni ngemuva kwe-polyethylene, iyisinqumo esihle sezikhwama zokupakisha zepulasitiki, izikhwama ze-PVC, izikhwama eziyinhlanganisela, izikhwama ze-vacuum, zingasetshenziselwa izincwadi, amafolda, amathikithi nezinye izembozo. ukupakisha nokuhlobisa, njll.
Okwesithathu, i-polyethylene ene-low density iyinani elikhulu kunawo wonke embonini yokuphrinta yokupakisha epulasitiki emazweni ahlukahlukene, ilungele indlela yokubumba yokucubungula ibe amafilimu ashubhu, alungele ukupakishwa kokudla, ukupakishwa kwemikhiqizo yamakhemikhali nsuku zonke, ukupakishwa kwemikhiqizo yefiber, njll.
Okwesine, i-polyethylene ephezulu, ukumelana nokushisa nokushisa, ukumelana nokubanda nokuqandisa, umswakama, igesi, ukusebenza kwe-insulation, futhi akulula ukuphuka, amandla e-polyethylene ephansi izikhathi ezimbili, yinto evamile yezikhwama zepulasitiki.
Okwesihlanu, ifilimu ye-polypropylene egxile ku-biaxially, amandla ayo emishini, amandla okugoqa, ukuminyana komoya, umgoqo womswakama ongcono kunefilimu yepulasitiki evamile, ngenxa yokungafihli kwaleli filimu yepulasitiki muhle kakhulu, umbala owenziwe kabusha ngemuva kokuphrinta ogqamile futhi muhle kakhulu, uyinto ebalulekile. ukuze kufakwe inhlanganisela yepulasitiki eguquguqukayo.
Okwesithupha, ifilimu ye-shrink iphinde ibe i-substrate evamile yezikhwama zokupakisha zepulasitiki, ezisetshenziswa ukwelashwa komoya oshisayo noma imisebe ye-infrared izoncipha, ngemva kokwelashwa kokushisa kuhlanganiswe ngokuqinile ezimpahleni ezipakishiwe, amandla okunciphisa afinyelela umkhawulo wawo esigabeni sokupholisa, futhi angakwazi agcinwe isikhathi eside.
Lezi yizikhwama zepulasitiki, izikhwama zepulasitiki, izikhwama eziyinhlanganisela, izikhwama ze-vacuum nezinye izinto ezivamile zemikhiqizo yepulasitiki, ngokuthuthukiswa kobuchwepheshe kanye nenqubekela phambili eqhubekayo, imvelo enobungani, izikhwama zepulasitiki eziluhlaza okotshani, imikhiqizo yepulasitiki izoba isiqondiso esizayo sentuthuko. kanye nezitayela.
Isiphetho
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Isikhathi sokuthumela: Apr-14-2022