Fa'avasegaina o le Polyethylene

Faavasegaina o polyethylene

Ua vaevaeina le polyethylene i polyethylene maualuga (HDPE), polyethylene maualalo (LDPE) ma le laina maualalo polyethylene (LLDPE) e tusa ai ma le auala polymerization, mamafa mole ma le fausaga filifili.

LDPE

Meatotino: leai se tofo, leai se manogi, leai se mea oona, mata lemu, susu pa'epa'e pa'epa'e vaega waxy, mamafa e tusa ma le 0.920 g/cm3, liusuavai 130 ℃ ~ 145 ℃. Le mafai ona solu i le vai, soluble teisi i hydrocarbons, ma isi. E mafai ona tatalia le tafia o le tele o acids ma alkalis, e maualalo vai absorption, e mafai lava ona faatumauina le fetuutuunai i le maualalo o le vevela, ma e maualuga le insulation eletise.

Gaosiga o Gaosiga:

E masani lava e lua ituaiga o auala paipa maualuga-omiga ma auala ulo. Ina ia faʻaitiitia le vevela tali ma le mamafa, o le gene tubular processrally faʻaaogaina se faʻauluuluga o le gaioioiga maualuga-maualalo e amata ai le faiga o le polymerization, o le ethylene mama maualuga o loʻo faʻaaogaina e avea ma mea autu, propylene, propane, ma isi. O le polymerization na faia i lalo o tulaga o le 330 ° C ma le 150-300MPa. O le polymer uʻamea lea e amataina le polymerization i le reactor e tatau ona faʻamafanafana ma vavae ese i le maualuga o le mamafa, le mamafa o le mamafa ma le maualalo. A uma ona tuueseeseina, e auina atu i le inlet o le maualuga-oomi (30 MPa) compressor, a o le maualalo-oomi solo kesi e malulu ma vavae ese ma auina atu i le maualalo-oomi (0.5 MPa) compressor mo le toe faʻaaogaina, ae o le polyethylene liusuavai. e auina atu i le granulator pe a uma le vaeluaga o le mamafa ma le maualalo. Mo le faʻapipiʻiina i totonu o le vai, i le taimi o le faʻapipiʻiina, e mafai e pisinisi ona faʻaopoopo mea faʻaopoopo talafeagai e tusa ai ma fanua faʻaoga eseese, ma o loʻo faʻapipiʻiina ma lafoina ia granules.

faʻaoga:

E mafai ona fa'aoga auala e fa'agaoio ai e pei ole tui tui, fa'apipi'i, ma le feula. E masani ona faʻaaogaina e pei o agricultural ata tifaga, ata faʻapipiʻi fale gaosi oloa, vailaʻau ma meaʻai faʻapipiʻi ata, vaega faʻainisinia, mea e manaʻomia i aso taʻitasi, mea faufale, uaea, faʻapipiʻi uaea, ufiufi ma pepa faʻapipiʻi.

LLDPE

Meatotino: Talu ai o fausaga mole o le LLDPE ma le LDPE e manino lava e eseese, o meatotino e ese foi. A fa'atusatusa i le LDPE, o le LLDPE e sili ona lelei le fa'amamafa o le si'osi'omaga ma le fa'a'ese'ese eletise, maualuga atu le vevela, tete'e a'afiaga ma tete'e tu'i.

Gaosiga o Gaosiga:

O le resini LLDPE e masani ona gaosia e masini polyethylene atoa, ma o le gaosiga o sui o le Innovene process ma le UCC's Unipol process.

faʻaoga:

E ala i le tui tui, extrusion, feula ma isi auala faʻapipiʻi, le gaosiga o ata tifaga, mea e manaʻomia i aso uma, paipa, uaea ma uaea, ma isi.

HDPE

Meatotino: Natural, cylindrical poʻo le oblate vaega, vaega lamolemole, vaega laiti e tatau ona 2 mm ~ 5 mm i soʻo se itu, leai ni masini faʻaleagaina, vevela. O le pauta o le pauta paʻepaʻe, ma o le oloa faʻamaonia e faʻatagaina e iai sina samasama lanu. E le mafai ona solu i solu masani i le vevela o le potu, ae mafai ona fulafula i aliphatic hydrocarbons, hydrocarbons aromatic ma halogenated hydrocarbons pe a faʻafesoʻotaʻi mo se taimi umi, ma e mafai ona soluble i toluene ma acetic acid i le vevela i luga aʻe o le 70 °C. Oxidation e tupu pe a vevela ile ea ma lalo ole aafiaga ole la. E tetee atu i le tele o eleele tafia ma le alkali. E maualalo le vai, e mafai lava ona faʻatumauina le fetuutuunai i le maualalo o le vevela, ma e maualuga le eletise eletise.

Gaosiga o Gaosiga:

E lua fa'agasologa o le gaosiga o lo'o fa'aaogaina: auala kesi ma le slurry metotia.

faʻaoga:

Faʻaaogaina o tui, faʻafefe, faʻapipiʻiina, rotomolding ma isi auala faʻapipiʻi e gaosia ai ata tifaga, mea e manaʻomia i aso taʻitasi ma faʻaaogaina fale gaosi oloa eseese tele o koneteina gaogao, paipa, kalena faʻamau ma nonoa lipine mo afifiina, maea, upega fagota ma filo faʻapipiʻi, Uaea ma uaea etc.

Fa'avasegaina o le Polyethylene