I-Polyethylene Foam in Practice: Izakhiwo, Izinketho Zempahla, kanye Nezicelo

Igwebu le-polyethylene lingenye yezinto eziguquguqukayo nezisetshenziswa kakhulu embonini yegwebu, nokho ngokuvamile lithola ukuqashelwa okuncane kunezinto ezijwayeleke kakhulu njenge-polystyrene noma i-polyurethane. Abantu abaningi basheshe babone ukupakishwa'I-Styrofoam' eqinile noma ukugoba okuthambile okutholakala kugwebu le-upholstery, kodwa i-polyethylene isekela buthule inhlobonhlobo yemisebenzi ebalulekile. Ihlinzeka nge-flotation, imunca umthelela, ivamise izakhiwo, futhi ivikele imikhiqizo ebalulekile ngesikhathi sokuphatha nokuthutha. Kungakhathaliseki ukuthi liyabonakala noma cha, igwebu le-polyethylene lidlala indima ekuphileni kwansuku zonke kuzo zonke izindawo zezohwebo, zezimboni, nezindawo zokuhlala.

Isakhiwo Seseli Elivaliwe kanye Nezinzuzo Eziyinhloko Zokusebenza

Isici esichazayo se-polyethylene foam isakhiwo sayo samaseli avaliwe. Kunokuba kube namaseli axhumene avumela umoya nomswakama ukuba kudlule, igwebu le-polyethylene lihlanganisa izigidi zamangqamuzana avaliwe. Lesi sakhiwo sikhiqiza into evikela amanzi, enyakazayo, futhi ehlala isikhathi eside ngomshini, esisivumela ukuthi sisebenze ngokwethembeka ezindaweni ezidinga kakhulu. Ukumelana kwayo nomswakama, isikhunta, isikhutha, kanye namagciwane kuyenza ikufanelekele ukusetshenziswa olwandle, ukupakishwa isikhathi eside, nokugcinwa okuhlanzekile. Ngaphezu kwalokho, ukumelana kwe-polyethylene kuzincibilikisi eziningi, izinto zokubasa, nezinto ezisekelwe ku-petroleum kwandisa ukusetshenziswa kwayo ezimbonini.

Nakuba iqinile uma iqhathaniswa namanye amagwebu, i-polyethylene isanikeza ukuqina okuhle kakhulu. Impahla iyaminyanisa lapho ilayishwa kodwa ibuyela esimweni sayo sasekuqaleni uma ingcindezi isisusiwe. Leli khono lokumunca umthelela ngenkathi kugcinwa ubuqotho besakhiwo lenza igwebu le-polyethylene liphumelele ekuvikeleni umkhiqizo, ukusekela umthwalo, kanye nezinhlelo zokusebenza ezibandakanya ukushaqeka okuphindaphindiwe noma ukudlidliza.

Ukuthuthukisa Ukusebenza Ngezithasiselo Zezinto Ezibalulekile

Igwebu le-polyethylene likhiqizwa ngokufudumeza amakhompiyutha e-polymer kanye nokwethula ama-agent afuthayo akha isakhiwo sayo samaseli avaliwe. Ngesikhathi sokukhiqiza, izithasiselo zingaxutshwa ngokuqondile ezintweni ukuze kuzuzwe izici zokusebenza ezikhethekile. Isibonelo, i-anti-static polyethylene foam yakhelwe ukuqeda amashaji e-electrostatic, iyenze ifaneleke ukupakishwa, ukuthutha, nokugcina izingxenye ze-elekthronikhi ezibucayi.

Ngenxa yokuthi lezi zengezo zihlanganiswa negwebu ngesikhathi sokukhiqiza esikhundleni sokusetshenziswa njengokwelashwa okungaphezulu, ukusebenza kwazo kuhlala kuvumelana kukho konke ukuphila kwezinto ezibonakalayo. Imibalabala ingase yethulwe ukuze isekele ukufaka uphawu noma amasistimu okuhlonza okubukwayo. Ngaphezu kwalokho, i-polyethylene foam itholakala ezinhlobonhlobo zokuminyana. Amabanga aminyana kakhulu ngokuvamile afaka izakhiwo zamaseli amancane, ukuqina okukhulu, namandla athuthukisiwe okuthwala umthwalo.

Amafomu, Amafomethi, kanye nokucushwa kwesakhiwo

Ukuguquguquka kwegwebu le-polyethylene kuba sobala nakakhulu ngezinhlobonhlobo zamafomethi lapho kukhiqizwa khona. Amashidi namapulangwe aphakathi kwamafomu asetshenziswa kakhulu, asekela izinhlelo zokusebenza ezifana nokufaka amaphakheji ezimbonini, izinto zangaphakathi zekesi lamathuluzi, izithiyo ezishisayo, nezinhlelo zokuthutha ezibamba ukushaqeka. Ukuqina kwazo kwesakhiwo kuvumela ukusika okuhlanzekile nokwakhiwa okunembile, okubalulekile lapho kukhiqizwa amaphakheji okuvikela angokwezifiso.

Kuzinhlelo zokusebenza ezidinga ukujiya okwengeziwe, amashidi angahlanganiswa ndawonye ukuze akhe izingxenye ezinkulu, eziqinile. Lezi zakhiwo ezinama-laminated zivame ukusetshenziswa kumadivayisi we-flotation, i-heavy-duty padding, nezakhi zefenisha ezikhethekile. Ukumelana kwemvelo kwe-polyethylene kumswakama nakho kuyenza isebenze njengesithiyo esishisayo nesishunqayo, ikakhulukazi ekwakhiweni nasekusetshenzisweni kwezakhiwo.

Amaroli, Amasilinda, kanye Nezicelo Zezimboni Ezikhethekile

Uma ikhiqizwa ngamageji amancane, igwebu le-polyethylene lingenziwa ngemiqulu engasindi, eguquguqukayo. Le miqulu ijwayele ukusetshenziselwa ukufakwa kwamapayipi, izithiyo zomswakama ongaphansi, ukuvala isisekelo, nokugoqa okuyisivikelo. Ngenxa yokuthi bahlinzeka ngokufaka ukuvikela nokuvikela ngaphandle kokwengeza inqwaba enkulu, banikeza isixazululo esisebenzayo nesingabizi kakhulu sokwakha nokuphatha izinto.

Izinhlobo ze-cylindrical ze-polyethylene nazo ziyaziwa kabanzi, ngokuvamile zibonwa njengama-noodle echibini. Ngaphandle kokusetshenziswa kokuzijabulisa, nokho, lawa masilinda asebenza imisebenzi ebalulekile yobungcweti njengama-bolster, izisekelo ze-flotation, kanye nama-padding okuvikela kukho kokubili okokusebenza kwezimboni nezokungcebeleka. Ngesilinganiso esincane, igwebu le-polyethylene likhishwa libe yishubhu elincane elaziwa ngokuthi i-backer rod, elisetshenziswa kakhulu emajoyini okunweba kakhonkolo. I-Backer rod isiza ukulawula ukujula kwe-sealant, inciphisa ukusetshenziswa kwezinto, futhi ivumela izakhiwo ukuthi zinwebe futhi zinciphe ngendlela efanele njengoba amazinga okushisa eshintsha.

-Cross-Linked Polyethylene Izinhlobonhlobo ze

Igwebu le-polyethylene litholakala kuzo zombili izinhlobo ezixhumene ngokomzimba namakhemikhali. I-polyethylene exhunywe ngamakhemikhali ikhiqizwa ngokubopha okwenzeka ngaphansi kokushisa okulawulwayo noma ingcindezi, kudala into enokuqina okuthuthukisiwe, ukwakheka kwamaseli okufana kakhudlwana, nokumelana okuqinile nokucindezelwa.

I-polyethylene exhumene ngokomzimba yenza izibopho zayo ngokucubungula okusekelwe emisebeni, okunikeza ukungaguquguquki okuhle kwesakhiwo ngenkathi ivumela ukuguquguquka okukhulu ngesikhathi sokukhiqiza. Nakuba ngokuvamile iqinile kancane kunegwebu elixhumene namakhemikhali, ihlala ifaneleka ezinhlelweni eziningi zokusebenza zokugudluza nokwakha.Ukwehluka ngakunye okuxhunywe kunikeza izinzuzo ezihlukile, futhi ukukhetha okufanele kuncike ezidingweni zokusebenza nemibandela yohlelo lokusebenza lokugcina.

I-Material Enamandla Okusebenza Okubanzi

Uhlu olubanzi lokuhlukahluka kwegwebu le-polyethylene-kuhlanganiswe nokuqina kwalo, ukumelana nezimo zemvelo, namandla okwenziwa ngezifiso-kuyenza ibe enye yezinto eziguquguqukayo zegwebu ezisetshenziswa namuhla. Kusukela emaphaketheni okuvikela kanye nokuntanta kuya ekwakhiweni, okokufaka, nokuvikelwa kwemboni, igwebu le-polyethylene lisebenza ngokungaguquki ezindaweni lapho ukwethembeka nokuphila isikhathi eside kubalulekile. Kungakhathaliseki ukuthi isetshenziswa kumaphrojekthi womuntu siqu, ukukhiqizwa kwezentengiselwano, noma imisebenzi emikhulu yezimboni, kunokwakheka kwe-polyethylene eklanyelwe ukuhlangabezana nezidingo zokusebenza ezinzima.