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Igoa o oloa:polyethylene
fa'asologa mole:nC2H4
Numera CAS:9002-88-4
Fua mole mole oloa:
O vaila'au ma mea fa'aletino e matua a'afia lava i le fa'ateleina o le mamafa, lea e a'afia i foliga ma le va o le filifili mole. O mea e maualalo le mafiafia o lo'o i ai filifili e tele lala ma lautele avanoa, ae o mea maualuluga e iai filifili sa'o ma vavalalata. O le polyethylene e maualalo le malosi (0.926–0.9409 g/cm3) e mafai ona solu i so'o so'o ile vevela e maualuga atu ile 200°F. E le mafai ona soloia i le vevela o le potu. O le polyethylene maualuga (0.041–0.965 g/cm3) o le hydrophobic, fa'afefe i le kesi, ma e maualuga le malosi o le eletise.
O polyethylenes maualalo mole mole mamafa e sili atu le malosi o le eletise ma le tetee i le vai ma le tele o vailaʻau. O polymers mole mole mamafa ole waxes e fefiloi ma le paraffin wax, ma polyethylene polymers e maualuga atu i le 10,000 o latou mamafa mole mole e sili atu i le 10,000, o resini ma'a'a masani ia e fetuutuunai pe malo. E ala i le fesuisuiai o le faʻamalosi ma metotia o le polymerization, o mea totino e pei o le mamafa, tioata, mamafa mole, ma polydispersity e mafai ona faʻatonutonuina i luga o laina lautele. O polymers ma density e amata mai i le 0.910 i le 0.925 g/cm3 o polyethylenes maualalo; oi latou e iai le mamafa e amata mai i le 0.926 i le 0.940 g/cm3 o polyethylenes medium-density; ma oi latou e iai densities e amata mai i le 0.941 i le 0.965 g/cm3 ma maualuga atu o polyethylenes maualuga.
Polyethylene (PE) o se polymer thermoplastic e aofia ai filifili hydrocarbon umi. O lo'o fa'aogaina le PE i le tele o talosaga e aofia ai le afifiina o ata fe'avea'i na gaosia e le fa'agasologa o ata tifaga. Polyethylene e faʻaaogaina e faʻatonutonu ai le viscosity, mea faʻamalolo, ma le mautu lautele i mea teuteu. O talosaga masani e aofia ai vaega faʻapipiʻi faʻapitoa, i totonu o nei fanua Polyethylene ei ai le tele o faʻaoga:
tui ma feula meataalo, meafale ma tapuni.
nofoa ta'avale fa'asu'i tui, vaega moava ma fata.
Koneteina tui, puipui manifinifi ma meafale.
Fa'apipi'i fa'afefete vevela mo pepa, fa'aopoopo i mea fa'ameamea, moliga'o, vaitusi fa'avae suau'u ma mea fa'apipi'i vevela.
Faʻaopoopo i polyesters unsaturated, epoxides ma isi polymers e tuʻuina atu mea uiga ese o le UHMWPE. Fa'aaogaina i vaega tau alamanuia, fa'alavalava ma fa'alavalava i luga ole 10-40 wt. %.
Ata fa'aoga e lelei le toso i lalo ma le faigata.
Fa'apipi'i fa'amatu'u mold, lubricant i le fa'agaioiina o pa'u, fa'aulu ma fa'akalena fesoasoani mo PVC ma fa'asalalau fesoasoani mo fa'aputu lanu.
Bearings, gears, bushings ma isi vaega gaoioi.
paipa falesuesue; i le faia o polotini; eletise eletise; mea fa'apipi'i; mea umukuka; tane ma paipa; faʻapipiʻi pepa; mea fa'amalo ie.
polyethylene o loʻo faʻaaogaina e faʻatonutonu ai le viscosity, faʻamalologa meatotino, ma le mautu lautele i mea teuteu teuteu. E maua mai le kesi suau'u po'o le fa'amama o le ava malosi.
E mafai e Chemwin ona tuʻuina atu le tele o vailaʻau hydrocarbons ma vailaʻau vailaʻau mo tagata faʻatau pisinisi.Aʻo leʻi faia lena mea, faʻamolemole faitau faʻamatalaga autu nei e uiga i le faia o pisinisi ma matou:
1. Puipuiga
O le saogalemu o la tatou faamuamua sili. I le faaopoopo atu i le tuʻuina atu i tagata faʻatau faʻamatalaga e uiga i le saogalemu ma le faʻaogaina o le siosiomaga oa matou oloa, matou te tuuto atu foi i le faʻamautinoaina o le saogalemu o lamatiaga o tagata faigaluega ma konekarate e faʻaitiitia i se tulaga talafeagai ma mafai. O le mea lea, matou te manaʻomia le tagata faʻatau e faʻamautinoa ua ausia tulaga talafeagai o le laʻuina ma le teuina o le saogalemu aʻo leʻi tuʻuina atu (faʻamolemole vaʻai i le faʻaopoopoga HSSE i aiaiga lautele ma aiaiga o faʻatau i lalo). O matou tagata tomai faapitoa i le HSSE e mafai ona tuʻuina atu taʻiala i nei tulaga.
2. Tuuina atu auala
E mafai e tagata fa'atau oloa ona fa'atonu ma tu'uina atu oloa mai le chemwin, pe mafai fo'i ona latou maua oloa mai le matou fale gaosi oloa. O auala o felauaiga o lo'o avanoa e aofia ai loli, nofoaafi po'o felauaiga tele (tulaga eseese e fa'atatau).
I le tulaga o manaoga o tagata faatau, e mafai ona matou faʻamaonia manaʻoga o vaʻa poʻo vaʻa ma faʻaoga tulaga faʻapitoa mo le saogalemu / iloiloga ma manaʻoga.
3. Fa'atonuga maualalo
Afai e te faʻatau oloa mai la matou upega tafaʻilagi, o le aofaʻi aupito maualalo ole oka ole 30 tone.
4. Totogi
Ole auala masani ole totogi ole toesega tuusao ile 30 aso mai le pili.
5. Tuuina atu pepa
O pepa nei o lo'o tu'uina atu i fa'asalalauga ta'itasi:
· Bill of Lading, CMR Waybill po'o isi pepa felauaiga talafeagai
· Tusi Faamaonia o Suʻesuʻega poʻo Faʻatatau (pe a manaʻomia)
· Fa'amaumauga e feso'ota'i i le HSSE e tusa ai ma tulafono fa'atonutonu
· Fa'amaumauga a le Ofisa o Tiute e tusa ai ma tulafono fa'atonutonu (pe a mana'omia)