Impahla yokwelapha ngaphambi kokwelapha

Izinto eziningi ezisetshenziswa ekubumbeni ipulasitiki ziyimpushana noma izinto eziyimbudumbudu. Ngenxa yokuthunyelwa kwe-resin noma ezinye izizathu, izinto ezingavuthiwe zingase zixutshwe nokungcola kwemishini, umswakama, njll. Izinga lezinto ezingavuthiwe lithinta ngqo ikhwalithi nokusebenza kahle kokukhiqizwa kwemikhiqizo yepulasitiki. Uma okuqukethwe ukungcola ezintweni zokusetshenziswa kukhulu, ngeke nje kuthinte izinga lokubukeka kwemikhiqizo, kodwa futhi kuthinte kakhulu izakhiwo zemishini kanye nezakhiwo zikagesi zemikhiqizo. Kulula ukukhiqiza ngokungcola ngesikhathi sokusetshenziswa. Ukuqhekeka, njll.; umswakama owedlulele wamapulasitiki ane-hygroscopic ngeke nje kubangele ubunzima ekubumbeni nasekucutshungulweni kwezinto, kodwa futhi wenze imikhiqizo ithambekele kumabhamuza, izimpawu zamanzi, njll., okuthinta ukusebenza kanye nekhwalithi yokubukeka kwemikhiqizo. Izinto ze-polyester Ukusabela kwe-hydrolysis yokushisa okuphezulu kungase kwenzeke, kubangele ukungakwazi ukucubungula nokuma. Ukuze kuqinisekiswe ukuphepha komkhiqizo futhi kuthuthukiswe ikhwalithi yomkhiqizo, izinto zokusetshenziswa zepulasitiki ngokuvamile zidinga ukucutshungulwa ngokohlobo lwempahla nenjongo ngaphambi kokubunjwa nokucubungula, bese zixutshwa, zenziwe ngepulasitiki futhi zibunjwe njengoba kudingeka.

Lokhu okubizwa ngokuthi ukwelapha kuqala kubhekiselwa ekuhlolweni, ukuhluzwa, ukushisa kuqala, ukomiswa kanye nokugaya izinto zokusetshenziswa zepulasitiki. Imishini yokwelapha kusengaphambili ibhekisela kumathuluzi namathuluzi asetshenziselwa ukulungisa kuqala izinto zokusetshenziswa zepulasitiki, ikakhulukazi okuhlanganisa okokuhlola nokokuhlunga, okokusebenza kwangaphambili nokomisa, nezinto zokugaya.