Kuyini i-PE? Kungakanani okwaziyo ngephepha elimbozwe nge-PE?

Wonke umuntu kufanele ajwayelene nephepha. Ngoba singabona zonke izinhlobo zemikhiqizo yephepha ezigcawini eziningi empilweni yansuku zonke. Isibonelo, sijwayelene nezinkomishi zephepha, izitsha zephepha, amapuleti ephepha kanye namabhokisi okudla okusheshayo. Sonke siyazi ukuthi iphepha liyi-hygroscopic (limunca kalula umswakama) futhi linamandla amancane okuqhuma. Kodwa uma uqaphela, uzothola ukuthi la maphepha anefilimu yokuthinta ecacile, ecwebezelayo, ebushelelezi ngaphakathi. Leyo ifilimu ye-PE, ebonakala ifaka ijazi elimangalisayo ephepheni, elilinika amandla amakhulu okungesabi amanzi namafutha. Ake sembule imfihlakalo yephepha elimboziwe ndawonye!

Okuqukethwe

1. Kuyini i-PE?
2. Ukuhlukaniswa kwe-PE.
3. Ukusatshalaliswa kwamandla okukhiqiza e-PE ngezwe.
4. Liyini iphepha elimbozwe nge-PE? Lisetshenziselwani?
5, Ukuhlukaniswa kwephepha elimbozwe nge-PE.
6. Ukusetshenziswa kwephepha elimbozwe nge-PE.

Kuyini i-PE?

Ngaphambi kokuqonda iphepha elimbozwe nge-PE, ake sixoxe ngezinto zalo eziyinhloko zokusetshenziswa - i-polyethylene. I-Polyethylene isifinyezo se-PE, okuyi-resin ye-thermoplastic eyenziwe nge-polymer evela ku-ethylene. Ukubukeka kwe-polyethylene kuyizinhlayiya ezimhlophe ezifana ne-wax, ezingenambitheki, ezingenaphunga, ezingenabuthi futhi ezizwakala njenge-wax. Isici esiyinhloko se-polyethylene sishibhile, esinokumelana okuhle kakhulu nokubanda, ukuzinza kwamakhemikhali, ukufakelwa kukagesi nezinye izici. Ngakho-ke inezinhlobo eziningi zezicelo. Isetshenziswa kakhulu ekwenziweni kwamafilimu, izinto zokupakisha, izitsha, amapayipi, izintambo kanye nezintambo, izidingo zansuku zonke, njll. Ngaphezu kwalokho, ingasetshenziswa njengezinto zokuvimbela imvamisa ephezulu yamathelevishini, ama-radar, njll. Kusukela yasetshenziswa ngo-1922, i-polyethylene isithuthuke yaba yi-resin yokwenziwa enkulu kunazo zonke emhlabeni kanye nokusetshenziswa okukhulu kakhulu kwezinto zokupakisha zepulasitiki. Ithatha isikhundla esibalulekile embonini yepulasitiki.

Ukuhlukaniswa kwe-PE
Ngenxa yezinqubo ezahlukene ze-polymerization ze-polyethylene, isakhiwo sayo sihlukile, futhi izakhiwo zomkhiqizo ezihambisanayo nazo zihlukile kakhulu. Ngokuyinhloko zingahlukaniswa zibe: I-Polyethylene Ephansi (LDPE), I-Polyethylene Ephansi Eqondile (LLDPE), I-Polyethylene Ephakeme (HDPE).
I-LDPE: Isetshenziswa kakhulu ephepheni lokwenziwa, ifilimu yezolimo, ifilimu yokupakisha yezimboni, ucingo, njll.;
I-LLDPE: Isetshenziswa kakhulu ezintanjeni nasezintanjeni, amapayipi, izidingo zansuku zonke, njll.;
I-HDPE: Isetshenziswa kakhulu kuma-ligature, izintambo, amanetha okudoba, njll.

 

Ukusatshalaliswa kwamandla okukhiqiza e-PE ngezwe
Kusukela ngo-Ephreli 2022, amandla okukhiqiza i-PE eShayina asefinyelele cishe amathani ayizigidi ezingama-29.18, okwenza u-21% wamandla okukhiqiza i-PE emhlabeni wonke. Kungabonakala kudatha ukuthi amandla okukhiqiza i-PE emhlabeni wonke agxile kakhulu eShayina, e-United States naseSaudi Arabia. IShayina njengamanje iyizwe elinamandla okukhiqiza i-polyethylene amakhulu kunawo wonke emhlabeni.

 

 

Liyini iphepha elimbozwe nge-PE?

Sesivele sinokuqonda okujulile nge-PE ngenhla, ngakho-ke liyini iphepha elimbozwe yi-PE? Kalula nje, iphepha elimbozwe yi-PE liyizinto ezihlanganisiwe ezenziwe ngephepha njengezinto eziyisisekelo futhi zimbozwe ngesendlalelo sefilimu ye-polyethylene ephepheni eliyisisekelo, okungukuthi, izinhlayiya zepulasitiki zimbozwe ebusweni bephepha ngomshini wokubumba. Iphepha kulula ukulimanzisa, kodwa ngemva kokuhlanganiswa kahle ne-polyethylene, iphepha elimbozwe lingafinyelela imiphumela yokumelana nokungangeni manzi, ukumelana namafutha kanye nokushisa okuphezulu.

Ukuhlukaniswa kwephepha elimbozwe nge-PE

Ngokusho komehluko phakathi kwenani lefilimu embozwe nge-coated, ingahlukaniswa ibe yiphepha elimbozwe nge-PE elilodwa, iphepha elimbozwe nge-PE elinamacala amabili, kanye nephepha elimbozwe nge-PE eliphakathi kwezingqimba.

1. Iphepha elimbozwe nge-PE elilodwa
Iphepha elimbozwe nge-PE elinohlangothi olulodwa limbozwe ngefilimu ye-PE ohlangothini olulodwa lwephepha eliyisisekelo. Lisetshenziswa ezinkomishini zephepha lokuphuza ezishisayo, ephepheni le-hamburger, njll.
2. Iphepha elimbozwe nge-PE elinamacala amabili
Iphepha elimbozwe nge-PE elinamacala amabili limbozwe nge-PE ezinhlangothini zombili zephepha eliyisisekelo. Lisetshenziswa ezinkomishini zephepha lokuphuza ezibandayo.
Iphepha elimbozwe ngezingqimba ezimbili

Iphepha elimbozwe ngesangweji liwukufaka i-PE coating phakathi kwamaphepha amabili ayisisekelo ukuze kuhlanganiswe iphepha elilodwa ukuze kuthuthukiswe ukuguquguquka kwephepha.
Ivame ukusetshenziswa: ekupakisheni kwe-desiccant, ezikhwameni zokupakisha ukudla, njll.
Ngokwezinhlobo ezahlukene zokumboza, ingahlukaniswa ngezinhlobo ezimbili: ifilimu ekhanyayo kanye nefilimu engaphansi.
Ifilimu ekhanyayo iyifilimu ye-polyethylene esobala enamacala amabili enobuso obukhanyayo nesandla esibushelelezi. Ifilimu ekhanyayo iyifilimu ye-polyethylene engabonakali enefilimu engabonakali enobuso obunenkungu.
Ama-sequin anencazelo ephezulu futhi okuphrintiwe kunemibala eminingi. Amafilimu acwebezelayo anombala othule kakhulu.
Ukusetshenziswa kwephepha elimboziwe
Iphepha elimboziwe lihlobene kakhulu nokuphila kwethu kwansuku zonke futhi linokusetshenziswa okubanzi, okusetshenziselwa kakhulu ukupakisha, ukudla, ezokwelapha, izinto zikagesi, ihadiwe, ukusika ngodayi, njll.

Ububanzi bokusetshenziswa kwephepha elimboziwe:

Ububanzi bokusetshenziswa kwephepha elimboziwe
1. Amakhemikhali: ukupakishwa kwe-desiccant, amabhola e-mothball, i-washing powder, izithasiselo.
2. Ukudla: ama-noodle bundles, ukupakishwa kwe-ayisikhilimu, ubisi.