I-PET PA PP ephezulu ye-polymer encibilikisiwe idinga ukuhlungwa ngaphambi kokuba i-chemical fibre spinning ukuze isuse ukungcola kanye nezinhlayiya zejeli ezifakwe ekuncibilikeni ukuze kuvinjelwe ukuxhunywa kwembobo ye-spinneret;lapho i-polymer encibilikayo igeleza kusendlalelo sesikrini se-spin pack, ukumelana kuyakhiqizwa, ukuze i-Friction encibilikayo ikhiqize ukushisa, izinga lokushisa liyakhuphuka, futhi izici ze-rheological zokuncibilika ziyathuthukiswa.Ngesikhathi esifanayo, ukuncibilika kuhlanganiswe ngokugcwele ukuvimbela umehluko we-viscosity phakathi kokuncibilika;ukuncibilika kusakazwa ngokulinganayo emgodini ngamunye omncane we-spinneret;ngokwanda kwesikhathi sokusetshenziswa kwesihlungi se-spin pack, ukungcola okusengqimbeni lesihlungi se-mesh pack kuzokwanda, futhi ukucindezela komhlangano kuzokhula kancane kancane.Isivinini sokwanda kwengcindezi siyashesha, futhi impilo yesevisi yomhlangano imfushane.Lapho umhlangano ukhuphukela ekucindezelweni okuthile, kuyadingeka ukufaka esikhundleni somhlangano ngesikhathi, ngaphandle kwalokho, ipompo yemitha iyachotshozwa, noma i-spinneret ikhubazekile, noma ukuvuza kwenzeka.
Ukukhethwa kwezingxenye zokuhlunga ezifanele kubaluleke kakhulu ekuphotheni, futhi imidiya yokuhlunga izinhlayiyana efanelekile ibaluleke kakhulu.Enqubweni yokuthuthukiswa kokuphotha, futhi kuyinqubo yokuthola indawo yokuhlunga ye-shear ekahle.Izinto eziningi zokuhlunga ezaziwayo zifaka isihlabathi sasolwandle, ukushefa kwensimbi, ubuhlalu bengilazi, amapuleti ensimbi anezimbotshana ezinezimbotshana, kanye nezinhlayiya zensimbi ezimise ngendlela engavamile.
Ngaphezu kokungabizi, indawo yokuhlunga efanelekile kufanele ibe futhi kufanele igcine i-porosity ephezulu ezingcindezini ezihlangatshezwana nazo ngesikhathi sokuncibilika kwe-polymer.Ukuze kugcinwe i-porosity ephezulu, umbhede wezinhlayiya zama-polymers amaningi ashisayo uwumkhuba wokwenza ijeli eqoqana futhi inciphise ukusebenza kahle kokuhlunga kwemidiya yokuhlunga.Ngakho-ke, izinto zokuhlunga zensimbi akumele zifake isandla ekwakhekeni kwejeli.
Itholakala kakhulu ukuze uthole isihlabathi sasolwandle, kodwa i-brittle ngokwedlulele ngomphumela wokuthi ukuthuthukiswa kwezinhlayiya ezinhle kuvame ukuvimbela ama-capillaries kuma-spinnerets.Ukwengeza, indawo ethize yesihlabathi sasolwandle iyancipha kakhulu futhi ingaphansi kwephesenti le-porosity yanoma iyiphi ivolumu yesihlungi sephakethe, ngakho-ke ukucindezela kwephakethe kuzokhuphuka kakhulu.Impushana yensimbi engagqwali elungiswa ngaphansi kwezimo ezithile ibonisa indawo engavamile ngokwedlulele ethi ngokufanele ukuminyana okusobala okuphansi, ivame ukuthuthukisa ukusebenza kahle kokuhlunga kwayo;ngaphansi kwengcindezi yokusebenza, ikhombisa kokubili ukuminyana okusobala futhi ithuthukise ukumelana nokucindezelwa ukuze kusebenze kahle ukuhlunga ngokuguquguquka okuncane noma okungekho nhlobo kwezinhlayiyana kanye nokuwa.
Isikhathi sokuthumela: Aug-29-2018