Hlobo luni lwepulasitiki?
I-PE (polyethylene, i-polyethylene) ingenye ye-thermoplastics evame kakhulu esetshenziswa embonini yamakhemikhali. Kusetshenziswa kabanzi emikhakheni ehlukahlukene futhi sekuyinto ekhethwayo ezimbonini eziningi ngenxa yezakhiwo zayo ezinhle kakhulu nomnotho. Kulesi sihloko, sizohlaziya ngokuningiliziwe izinhlobo zamapulasitiki we-PE, izakhiwo zawo kanye nezicelo zazo eziphambili ukukusiza uqonde kangcono le nto ebalulekile yepulasitiki.
Ukubuka konke okuyisisekelo kwamapulasitiki we-PE
I-PE Plastic Plastic (Polyethylene) iyisitayela se-polymer esikhiqizwa yi-polymerication of ethylene monomer. Kuya ngengcindezi kanye nokushisa ngesikhathi senqubo ye-polymerisation, amapulasitiki e-PE angahlukaniswa ezinhlotsheni ezimbalwa eziphambili njenge-polyethylene (LDPE), i-polsethylene (HDPE) ne-linear low density polyethylene (LLDPE). Uhlobo ngalunye lwepulasitiki lwe-PE lunesakhiwo salo esiyingqayizivele nezakhiwo zezindawo ezihlukile zohlelo lokusebenza.
Izinhlobo zamapulasitiki we-PE kanye nezakhiwo zawo
I-Low Density PolyethLene (LDPE)
I-LDPE ikhiqizwa nge-polymerication ephezulu ye-ethyleritation ye-ethylene, equkethe amaketanga afakwe ama-crystallinis. Ngakho-ke ibonisa izinga eliphansi le-crystallinity.lldpe libonakaliswa ngokuthamba kwalo, ubulukhuni, ukucaca kanye nokumelana nomthelela, futhi kuvame ukusetshenziswa ekukhiqizweni kwe Amafilimu, izikhwama zepulasitiki nokupakishwa kokudla. Naphezu kwamandla abo aphansi nobulukhuni, ukucubungula okuhle kwe-LDPE nezindleko eziphansi kwenza kubalulekile ezintweni zokupakisha.

I-Polyethylene ephezulu (HDPE)
I-HDPE ine-polymerised ngaphansi kwengcindezi ephansi futhi inesakhiwo esiphansi ngokwengeziwe, okuholela ekutheni i-crystaltaltity ephezulu kanye nobunzima Lezi zakhiwo zenza i-HDPE isetshenziswe kabanzi ekwenziweni kwamapayipi, iziqukathi, amabhodlela kanye nezinto ezimelana namakhemikhali, phakathi kwabanye.

I-Linear Low Density PolyethLene (LLDPE)
I-LLDPE yenziwa yi-polymering polyethylene enamanani amancane ama-monolymer monomer (isib. UButene, Henene) ngokucindezela okuphansi. Kuhlanganisa ukuguquguquka kwe-LDPE ngamandla we-HDPE, ngenkathi kukhombisa ukumelana nomthelela omkhulu kanye nokwelula.lldpe kuvame ukusetshenziswa ukwenza amafilimu anamandla aphezulu, njengamafilimu ezolimo, njll.

Izindawo eziphambili zezicelo zamapulasitiki we-PE
Ngenxa yezinhlobonhlobo kanye nokusebenza okuphezulu kwamapulasitiki we-PE, izindawo zawo zohlelo lokusebenza zibanzi kakhulu. Embonini yokufaka, amapulasitiki e-PE ajwayele ukusetshenziselwa ukwenza izinhlobo ezahlukahlukene zamafilimu epulasitiki, izikhwama neziqukathi zokupakisha. Ensimini yamapayipi, i-HDPE isetshenziswa kakhulu ekukhiqizweni kwamanzi okuhlinzekwa kwamanzi kanye namapayipi amanzi, amapayipi egesi, njll. Ngenxa yokumelana kwayo okuhle kwamakhemikhali kanye nezakhiwo zemishini. Emikhiqizweni yasendlini, amapulasitiki e-PE asetshenziswa kabanzi ukukhiqiza amabhodlela, iziqukathi neminye imikhiqizo yepulasitiki. Ensimini yezolimo, i-Lldpe ne-LDPE kusetshenziswa kabanzi ukwenza amafilimu ezolimo ahlinzeke ukuvikela kwezitshalo nendawo yenhlabathi.
Ukufingqa
Yini ipulasitiki ye-PE? Kuyi-thermoplastic eguquguqukayo, ezomnotho futhi esetshenziswe kabanzi. Ngokuqonda izinhlobo ezahlukene zepulasitiki we-PE kanye nezakhiwo zazo, amabhizinisi nabathengi bangakwazi ukukhetha kangcono izinto ezifanele ngezidingo zabo. Ukusuka ekupakisheni kanye neshubhu emikhiqizweni yasendlini, i-PE Plastic idlala indima ebalulekile empilweni yanamuhla ngezinzuzo zayo ezihlukile. Uma udidekile lapho ukhetha izinto zepulasitiki, sethemba ukuthi le ndatshana ingakunikeza imininingwane ebalulekile yereferensi.