Uhlobo luni lwepulasitiki i-PE?
I-PE (i-Polyethylene, i-Polyethylene) ingenye ye-thermoplastics evamile esetshenziswa embonini yamakhemikhali. Isetshenziswa kabanzi emikhakheni ehlukahlukene futhi isiphenduke into ekhethwayo ezimbonini eziningi ngenxa yezakhiwo zayo ezinhle kakhulu zomzimba kanye nomnotho. Kulesi sihloko, sizohlaziya ngokuningiliziwe izinhlobo zepulasitiki ze-PE, izakhiwo zazo kanye nezicelo zazo eziyinhloko ukukusiza ukuthi uqonde kangcono le nto ebalulekile yepulasitiki.
Uhlolojikelele Oluyisisekelo lwePlastiki ye-PE
Ipulasitiki ye-PE (i-polyethylene) iyimpahla ye-polymer ekhiqizwa i-polymerization ye-ethylene monomer. Ngokuya ngengcindezi kanye nezinga lokushisa ngesikhathi senqubo ye-polymerisation, amapulasitiki e-PE angahlukaniswa ngezinhlobo ezimbalwa eziyinhloko ezifana ne-low density polyethylene (LDPE), i-high density polyethylene (HDPE) kanye ne-linear low density polyethylene (LLDPE). Uhlobo ngalunye lwepulasitiki ye-PE lunesakhiwo salo esiyingqayizivele kanye nezakhiwo zezimo ezihlukene zohlelo lokusebenza.
Izinhlobo zamapulasitiki e-PE kanye nezakhiwo zawo
I-Low Density Polyethylene (LDPE)
I-LDPE ikhiqizwa i-polymerisation ephezulu ye-high-pressure ye-ethylene, equkethe amaketanga amaningi e-branched esakhiweni sayo futhi ngakho-ke ibonisa izinga eliphansi le-crystallinity.LDPE ibonakala ngokuthambile kwayo, ukuqina, ukucaca kanye nokumelana nomthelela, futhi ivame ukusetshenziswa ekukhiqizeni amafilimu, izikhwama zepulasitiki kanye nokupakishwa kokudla. Naphezu kwamandla aphansi kanye nobulukhuni bayo, ukucutshungulwa okuhle kwe-LDPE kanye nezindleko eziphansi kuyenza ibaluleke ezintweni zokupakisha.

I-High Density Polyethylene (HDPE)
I-HDPE i-polymerised ngaphansi kwengcindezi ephansi futhi inokwakheka kwamangqamuzana aqondile, okuholela ekukhanyeni okuphezulu nokuminyana.Izinzuzo ze-HDPE ukumelana kwayo kwamakhemikhali okuhle kakhulu, ukumelana nemihuzuko namandla aqinile, kuyilapho futhi ikwazi ukungena kancane. Lezi zakhiwo zenza i-HDPE isetshenziswe kabanzi ekwenzeni amapayipi, iziqukathi, amabhodlela kanye nezingxenye eziphikisana namakhemikhali, phakathi kokunye.

I-Linear Low Density Polyethylene (LLDPE)
I-LLDPE yenziwa nge-co-polymerising polyethylene enamanani amancane e-copolymer monomers (isb. i-butene, i-hexene) ngengcindezi ephansi. Ihlanganisa ukuguquguquka kwe-LDPE namandla e-HDPE, kuyilapho ibonisa ukumelana nomthelela ophezulu kanye nokunwebeka.I-LLDPE ijwayele ukusetshenziselwa ukwenza amafilimu anamandla amakhulu, njengamafilimu alula, amafilimu ezolimo, njll.

Izindawo ezisetshenziswa kakhulu zamapulasitiki e-PE
Ngenxa yokuhlukahluka nokusebenza okuphakeme kwamapulasitiki e-PE, izindawo zokusetshenziswa kwawo zibanzi kakhulu. Embonini yokupakisha, amapulasitiki e-PE avame ukusetshenziselwa ukwenza izinhlobo ezahlukene zamafilimu epulasitiki, izikhwama kanye neziqukathi zokupakisha. Emkhakheni wamapayipi, i-HDPE ivame ukusetshenziswa ekukhiqizeni amapayipi amanzi kanye nokukhipha amanzi, amapayipi egesi, njll ngenxa yokumelana kwayo kwamakhemikhali okuhle kakhulu kanye nezakhiwo zemishini. Emikhiqizweni yasendlini, amapulasitiki e-PE asetshenziswa kabanzi ukukhiqiza amabhodlela, iziqukathi neminye imikhiqizo yepulasitiki. Emkhakheni wezolimo, i-LLDPE kanye ne-LDPE zisetshenziswa kakhulu ukwenza amafilimu ezolimo ukuhlinzeka ngokuvikelwa kwezitshalo nokumboza umhlabathi.
Ukufingqa
Iyini ipulasitiki ye-PE? I-thermoplastic eguquguqukayo, eyonga futhi esetshenziswa kabanzi. Ngokuqonda izinhlobo ezahlukene zepulasitiki ye-PE kanye nezakhiwo zabo, amabhizinisi nabathengi bangakwazi ukukhetha kangcono izinto ezifanele izidingo zabo. Kusukela ekupakishweni nasekufakeni amashubhu emikhiqizweni yasendlini, ipulasitiki ye-PE idlala indima ebalulekile empilweni yesimanje ngezinzuzo zayo ezihlukile. Uma udidekile lapho ukhetha izinto zepulasitiki, sithemba ukuthi lesi sihloko singakunikeza ulwazi olubalulekile lwereferensi.