Hajoale, ho na le mefuta e meraro ea mantlha ea mekhoa ea tlhahiso eaboka ba PE: ea pele, boka ba polyethylene bo entsoe ka karabelo ea oligomerization ea ethylene monomer, joalo ka mokhoa oa mahala oa oligomerization;Ea bobeli ke boka ba polyethylene e lokiselitsoeng ke ho senyeha ha li-polymers;Ea boraro ke sehlahisoa sa tlhahiso ea polyethylene, joalo ka boka ba polyethylene e fumanoeng ka ho arola sehlahisoa ka har'a polyethylene synthesis ea khatello e phahameng.

1. Ethylene polymerization mokhoa
Ho na le mekhoa e meraro ea mantlha ea ho hlahisa boka ba polyethylene ka polymerization ea ethylene.E 'ngoe ke ho polymerize ho sebelisa li-catalysts tsa mahala ka mocheso o phahameng le khatello;Ea bobeli ke ho polymerize tlas'a khatello e tlaase ho sebelisa li-catalysts tsa Ziegler;Ea boraro ke polymerization ea metallocene catalysts.
2. Polyethylene cracking mokhoa
Kabo ea boima ba molek'hule eaboka ba polyethylenee hlahisoang ke mokhoa oa polymerization e moqotetsane, 'me boholo ba boima ba limolek'hule bo ka laoloa ka letsoho, empa bo tlameha ho etsoa ka sesebelisoa se seholo se nang le matsete a phahameng.Baetsi ba malapeng ka kakaretso ba sebelisa mokhoa oa ho phunya ka mocheso oa polyethylene e boima ba molek'hule bakeng sa tlhahiso.Mokhoa ona o ka sebelisa resin ea polyethylene kapa polasetiki ea litšila ea polyethylene joalo ka lisebelisoa tse tala.Ea pele e hlahisa lihlahisoa tsa maemo a holimo, athe ea morao-rao e hlahisa lihlahisoa tsa boemo bo tlaase.Polyethylene e phahameng ea boima ba limolek'hule e ka phunyeletsoa ka mocheso ka har'a boka ba boima ba molek'hule ea polyethylene tlas'a maemo a ho itšehla thajana.Thepa e amanang le sebopeho sa boka ba polyethylene e lokiselitsoeng, e kang crystallinity, density, hardness, le melting point, kaofela li angoa ke ho phunyeha ha lihlahisoa tse tala.Mekhoa ea ts'ebetso ea ho senya e arotsoe ka mokhoa oa kettle ea ho senya le mokhoa oa extrusion.

Mokhoa oa ho senya kettle ke mokhoa oa ho sebetsa oa nakoana, o loketseng bahlahisi ba nang le palo e tlaase ea tlhahiso le bokhoni bo fokolang ba tlhahiso;Mokhoa oa extrusion ke mokhoa o tsoelang pele oa tlhahiso o loketseng likhoebo tse nang le lihlahisoa tse kholo tsa tlhahiso le matla a phahameng a tlhahiso.

Boka ba polyethylene bo ka lokisoa ka ho sebelisa tharollo ea polyethylene e nchafalitsoeng.Theknoloji ena e na le mohloli o ruileng le o theko e tlaase oa thepa e tala, mokhoa o batlang o le bonolo, le litšenyehelo tse tlaase tsa ho sebetsa.
3. Ho hloekisoa ha lihlahisoa tsa polyethylene
Karabelong ea ho hlahisa polyethylene ho tsoa ho ethylene polymerization, lihlahisoa tsa boka ba polyethylene li ka fumanoa ho tsoa motsoako oa likarolo tse tlase tsa boima ba limolek'hule le li-solvents tse fumanoeng e le lihlahisoa.Ka mor'a ho tlosa solvent le initiator ho tswa ho sehlahisoa sa semela sa polyethylene, kabo ea boima ba molek'hule ea sehlahisoa e ntse e pharaletse haholo, e fokotsang tšimo ea eona ea kopo mme e hloka tlhoekiso e eketsehileng ka ho arohana ha solvent.Sehlahisoa sena sa boka ba polyethylene hangata se na le limolek'hule tse nang le boima ba limolek'hule tse ka bang 1000, kahoo thepa ea eona ea 'mele joalo ka matla a mochini le ho hanyetsa mocheso li tlase ho feta tse hlahisoang ke polymerization ea ethylene.

4. Phetoho ea boka ba polyethylene
Polyethylene boka ke molek'hule e seng polar, 'me haeba lihlopha tsa polar li ka kenngoa ka har'a molek'hule, e tla atolosa haholo masimo a eona a kopo.Li-wax tsena tsa polyethylene tse sebetsang hantle li ka hlahisoa ke copolymerization ea ethylene e nang le monomers e nang le oksijene, kapa ka ho hlahisa lihlopha tsa carboxyl ka mekhoa ea lik'hemik'hale tse kang oxidation le grafting, ebe li fetoloa hape ka liphetoho tsa lik'hemik'hale tse kang esterification, amidation, le saponification.Li-wax tsena tsa polyethylene tse sebetsang hantle li ka fihlela litlhoko tsa lits'ebetso tse fapaneng.
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