Parizvino, kune marudzi matatu makuru ekugadzira nzira dzePE wakisi: chekutanga, polyethylene wax inogadzirwa ne oligomerization reaction ye ethylene monomer, senge yemahara radical oligomerization nzira;Yechipiri i polyethylene wax yakagadzirwa nekuora kwema polymers;Yetatu ndeye byproduct mukugadzirwa kwe polyethylene, senge polyethylene wax inowanikwa nekuparadzanisa byproduct mu high-pressure polyethylene synthesis.

1. Ethylene polymerization nzira
Pane nzira nhatu huru dzekugadzira polyethylene wakisi kuburikidza ne ethylene polymerization.Imwe ndeye polymerize uchishandisa mahara radical catalysts pakupisa kwakanyanya uye kudzvanywa;Chechipiri ndechekuita polymerize pasi pekumanikidzwa kwakaderera uchishandisa Ziegler catalysts;Yechitatu ndeye polymerization ye metallocene catalysts.
2. Polyethylene kuputika nzira
The molecular weight distribution ofwakisi ye polyethyleneinogadzirwa ne polymerization nzira yakamanikana, uye huremu hwemamorekuru huremu hunogona kudzorwa nemaoko, asi hunofanirwa kuitwa pachigadzirwa chikuru chine mari yakawanda.Vagadziri vemumba vanowanzo shandisa iyo inopisa yekupwanya nzira yeyakakwira molecular uremu polyethylene yekugadzira.Iyi nzira inogona kushandisa kana polyethylene resin kana polyethylene tsvina yepurasitiki seyakagadzirwa.Iyo yekutanga inogadzira zvigadzirwa zvegiredhi repamusoro, nepo yekupedzisira ichigadzira yakaderera giredhi zvigadzirwa.High molecular uremu polyethylene inogona thermally akatsemuka kuva yakaderera molecular uremu polyethylene wakisi pasi pemhepo kuparadzaniswa mamiriro.Zvimiro zvine chekuita nechimiro chewakisi yakagadzirwa yepolyethylene, senge crystallinity, density, kuoma, uye nzvimbo yekunyungudika, zvese zvinokanganiswa nekutsemuka mbishi.Nzira dzekugadzirisa dzekugadzirisa dzakakamurwa kuva nzira yekucheka kettle uye extrusion nzira.

Nzira yekupwanya kettle inzira inopindirana yekugadzirisa, inokodzera vagadziri vane vhoriyamu yakaderera yekugadzira uye diki diki yekugadzira;Iyo extrusion nzira inoramba ichiita kugadzirwa kwakakodzera kumabhizinesi ane mavhoriyamu makuru ekugadzira uye yakakwirira yekugadzira.

Polyethylene wakisi inogona kugadzirwa nekushandisa recycled polyethylene cracking solution.Iyi tekinoroji ine hupfumi uye isingadhure sosi yezvigadzirwa, maitiro ari nyore, uye mutengo wakaderera wekushandisa.
3. Kucheneswa kwepolyethylene ne-zvigadzirwa
Mukuita kwekugadzira polyethylene kubva kuethylene polymerization, zvigadzirwa zve polyethylene wakisi zvinogona kudzoserwa kubva musanganiswa weyakaderera mamorekuru uremu zvikamu uye zvinonyungudutsa zvinowanikwa sezvigadzirwa.Mushure mekubvisa chinonyungudutsa uye chinovamba kubva kune-chigadzirwa chepolyethylene chirimwa, mamolecular uremu kugoverwa kwechigadzirwa kuchiri kwakakura kwazvo, izvo zvinoganhurira nzvimbo yayo yekushandisa uye inoda kumwe kucheneswa kuburikidza nekuparadzaniswa kwemunyungudutsa.Iyi byproduct ye polyethylene wakisi inowanzo sanganisira mamorekuru ane huremu hwema molecular huremu hunosvika 1000, saka hunhu hwayo senge mechanical simba uye kupisa kuramba kwakadzikira pane izvo zvinogadzirwa ne ethylene polymerization.

4. Kugadziriswa kwe polyethylene wax
Polyethylene wakisi isiri-polar molecule, uye kana mapoka epolar achigona kuiswa mumorekuru, inozowedzera zvakanyanya minda yayo yekushandisa.Aya mawakisi anoshanda epolyethylene anogona kugadzirwa necopolymerization yeethylene ine okisijeni-ine monomers, kana nekuunza mapoka ecarboxyl kuburikidza nenzira dzemakemikari senge oxidation uye grafting, uyezve kugadziridzwa kuburikidza nekuita kwemakemikari senge esterification, amidation, uye saponification.Aya mawakisi anoshanda e polyethylene anogona kusangana nezvinodiwa zvekushandisa kwakasiyana.
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