I-Polythene ingenye yepulasitiki ethandwa kakhulu emhlabeni. Kuyi-polymer eguquguqukayo elungele ukusetshenziswa okubanzi, kusukela kumafilimu okuvimbela umswakama osindayo ukuze kwakhiwe okusha kuya kwezikhwama ezingasindi, eziguquguqukayo namafilimu.

Izinhlobo ezimbili eziyinhloko ze-PE zisetshenziselwa ifilimu kanye nomkhakha wokupakisha oguquguqukayo - i-LDPE (i-low density), evame ukusetshenziselwa ama-pallets namafilimu esindayo afana nezikhwama zesikhathi eside namasaka, imigudu ye-polyethylene, amafilimu okuzivikela, izikhwama zokudla, njll.I-HDPE (ukuminyana okuphezulu), Kuningi lama-totes anegeji elincanyana, izikhwama zomkhiqizo omusha, namabhodlela namakepisi.

Kukhona ezinye izinhlobo zalezi zinhlobo ezimbili eziyinhloko. Yonke imikhiqizo inomhwamuko omuhle noma izakhiwo zokuvimbela umswakama futhi ayisebenzi ngamakhemikhali.

Ngokushintsha ukwakheka kwe-polyethylene kanye nokucaciswa, abakhiqizi/abaprosesa bangakwazi ukulungisa umthelela kanye nokumelana nokukhala; ukucaca kanye nomuzwa; ukuguquguquka, ukwakheka, kanye nekhono lokuhlanganisa/laminating/ukuphrinta. I-PE ingagaywa kabusha, futhi izikhwama eziningi zikadoti, amafilimu ezolimo, nemikhiqizo yesikhathi eside njengamabhentshi epaki, ama-bollards, namabhokisi kadoti asebenzisa i-polyethylene egaywe kabusha. Ngenxa yenani layo eliphezulu le-calorifikhi,I-PE inikezaukubuyisela amandla okuhle kakhulu ngokushiswa okuhlanzekile.

Ufuna ukuthenga i-HDPE?

isicelo
Imiphongolo yamakhemikhali, izimbiza zepulasitiki, amabhodlela engilazi, amathoyizi, izitsha zepikiniki, izinto zasendlini nezasekhishini, ukuvala amakhebula, izikhwama zokugqoka, izinto zokupakisha ukudla.

isici
Iguquguqukayo, iguquguqukayo/i-waxy, imelana nesimo sezulu, izinga lokushisa eliphansi eliqinile (kuya ku-60′C), kulula ukulicubungula ngezindlela eziningi, izindleko eziphansi, ukumelana namakhemikhali okuhle.

izakhiwo zomzimba
Amandla okuqina 0.20 – 0.40 N/mm²
Amandla omthelela anonothiwe ngaphandle kwekhefu Kj/m²
I-Coefficient of Thermal Expansion 100 – 220 x 10-6
Izinga lokushisa eliphezulu lokusebenzisa okuqhubekayo ngu-65 oC
Ukuminyana 0.944 – 0.965 g/cm3

ukumelana kwamakhemikhali
Nciphisa i-asidi****
Isisekelo esixutshiwe ****
Gcoba ** Iyaguquguquka
I-aliphatic hydrocarbons *
I-aromatics *
Ama-halogenated hydrocarbons *
Utshwala****

Okubalulekile * Kumpofu ** Kuphakathi *** Kuhle **** Kuhle Kakhulu

Izibonelo zamanje

Iziqukathi zasengadini ezenziwe nge-high-density polyethylene. Izindleko eziphansi, ukuqina okuphezulu kanye nokulula kokubumba igalelo kwenza le nto ibe yinto engokwemvelo yokukhetha ifenisha yasengadini.

Ibhodlela lepulasitiki le-HDPE
Amabhodlela epulasitiki ane-high-density polyethylene (HDPE) ayinketho ethandwayo yokupakisha ezimakethe zobisi nezimakethe zejusi. E-UK, isibonelo, cishe amabhodlela okuphakelayo e-HDPE ayizigidi eziyizinkulungwane ezine akhiqizwa futhi athengwe unyaka ngamunye.

I-HDPE inikeza izinzuzo eziningi kubakhiqizi, abathengisi nabathengi.

Izinzuzo zamabhodlela e-HDPE
Angase asetshenziswe kabusha: Amabhodlela e-HDPE angaphinda agaywe kabusha ngo-100%, ngakho okokusebenza kungasetshenziswa kabusha

Okusimeme: I-HDPE inikeza ithuba lokuhlanganisa kabusha izinto ezigaywe kabusha ochungechungeni lokunikezela

I-Easy Lightweighting: Amabhodlela e-HDPE Anikeza Amathuba Abalulekile Okukhanya

Okuguquguqukayo kakhulu: okuwukuphela kwebhodlela lepulasitiki elingasetshenziswa njenge-monolayer yobisi oluxutshwe ne-pasteurized, noma njenge-UHT noma ibhodlela elifakwe inzalo lokuvimbela ubisi

Ukusebenzisa kalula: Okuwukuphela kohlobo lokupakisha oluvumela izibambo ezididiyelwe futhi zithulule izimbobo zokubamba okulawulwayo nokuthululwa.

Iphephile futhi ivikelekile: Uhlobo lwephakeji okuwukuphela kwalo olungaba nesivalo esibonakalayo sangaphandle noma isivalo sokushisa esingeniswayo ukuze kuvinjwe ukuvuza, silondoloze ubusha bomkhiqizo, futhi sibonise ubufakazi bokuphamba.

Ezentengiso: Amabhodlela e-HDPE anikeza uhla olugcwele lwamathuba okumaketha, njengokuphrinta ngokuqondile kumpahla, ukuphrinta ngokuqondile kumkhono noma ilebula, kanye nekhono lokuguqula isimo ukuze sigqame eshalofini.

I-Innovation: Ikhono lokusunduza imingcele futhi uzuze izingqopha-mlando ezintsha ngokusetshenziswa okusha kwemishini yokubumba i-blow.

amaqiniso emvelo
Amabhodlela ezingane e-HDPE angenye yezinto ezipakishwa kabusha ezisetshenziswa kabanzi e-UK, nedatha evela kwa-Recoup ebonisa ukuthi cishe u-79% wamabhodlela ezingane e-HDPE asetshenziswa kabusha.
Ngokwesilinganiso,HDPE amabhodlelae-UK manje alula ngo-15% kunalokho ayenjalo eminyakeni emithathu edlule

Kodwa-ke, imiklamo emisha efana nebhodlela le-Infini eliwine umklomelo lisho ukuthi manje kungenzeka ukunciphisa isisindo samabhodlela ajwayelekile kufika ku-25% (kuya ngosayizi)

Ngokwesilinganiso, amabhodlela e-HDPE e-UK aqukethe kufika ku-15% izinto ezigaywe kabusha

Kodwa-ke, ukuthuthuka kwezobuchwepheshe kanye nemiklamo emisha yemikhiqizo kusho ukuthi impumelelo entsha isingenzeka. Isibonelo, ngo-2013, i-Nampak yengeze amaphesenti angu-30 asetshenziswe kabusha i-HDPE emabhodleleni ayo obisi e-Infini, umhlaba wokuqala-iminyaka emibili ngaphambi kokuhlosiwe kwemboni.