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Lebitso la Sehlahiswa:polyethylene
Sebopeho sa molek'hule:nC2H4
Nomoro ea CAS:9002-88-4
Sebopeho sa limolek'hule tsa sehlahisoa:
Lintho tsa lik'hemik'hale le tsa 'mele li angoa haholo ke ho eketseha ha sekhahla, se angoang ke sebopeho le sebaka sa ketane ea limolek'hule. Lisebelisoa tse tlaase-tlaase li na le liketane tse nang le makala a mangata le tse arohaneng haholo, athe lisebelisoa tse phahameng li na le liketane tse otlolohileng le tse haufi-ufi. Polyethylene ea "low-density" (0.926–0.9409 g/cm3) e qhibiliha ka har'a metsoako ea tlhaho ka mocheso o fetang 200 ° F. Ha e qhibilihe mocheso oa kamore. Polyethylene ea boleng bo phahameng (0.041–0.965 g/cm3) e na le hydrophobic, e kenang ka har'a khase, 'me e na le matla a matla a ho hanyetsa motlakase.
Li-polyethylene tse boima ba molek'hule li na le matla a matla a ho hanyetsa motlakase le ho hanyetsa metsi le lik'hemik'hale tse ngata. Li-polymers tsa boima ba limolek'hule tse mahareng ke boka bo kopantsoeng le boka ba parafine, 'me li-polymer tsa polyethylene tseo boima ba tsona ba molek'hule bo fetang 10,000 ke li-resin tse tloaelehileng tse thata le tse matla tse tenyetsehang kapa tse thata. Ka ho fapanyetsana mokhoa oa ho susumetsa le mekhoa ea polymerization, thepa e kang density, crystallinity, boima ba molek'hule, le polydispersity e ka laoloa ka mefuta e mengata. Li-polymers tse nang le li-density ho tloha hoo e ka bang 0.910 ho ea ho 0.925 g / cm3 ke polyethylene e tlaase-tlaase; ba nang le density ho tloha ho 0.926 ho 0.940 g/cm3 ke polyethylene e nang le sekhahla se mahareng; 'me ba nang le density ho tloha 0.941 ho 0.965 g/cm3 le holimo ke polyethylene e phahameng haholo.
Polyethylene (PE) ke polymer ea thermoplastic e nang le liketane tse telele tsa hydrocarbon. PE e sebelisoa lits'ebetsong tse 'maloa tse kenyelletsang ho paka lifilimi tse feto-fetohang tse hlahisoang ke ts'ebetso ea filimi e fokang. Polyethylene e sebelisoa ho laola viscosity, thepa ea ho emisa, le botsitso bo akaretsang ho litlolo tsa litlolo. Lisebelisoa tse tloaelehileng li kenyelletsa likarolo tse entsoeng ka ente e khethehileng, masimong ana Polyethylene e na le mefuta e mengata ea ts'ebeliso:
Ente le ho puputla lintho tsa ho bapala tse bōpiloeng, lisebelisoa tsa ntlo le li-lids.
Litulo tsa koloi tse entsoeng ka ente, likarolo tsa mower le likotlolo.
Ente e entsoeng, e nang le mabota a masesaane le lisebelisoa tsa ntlo.
Sekoaelo se chesang sa ho qhibiliha bakeng sa pampiri, se tlatselletsang linthong tse entsoeng ka foranteng, likerese, li-inks tse thehiloeng ka oli le likhomaretsi tse qhibilihang.
Keketso ea li-polyester tse sa tsitsang, li-epoxide le li-polymer tse ling ho fana ka thepa e ikhethang ea UHMWPE. E sebelisoa likarolong tsa indasteri, ho roala le ho roala bokaholimo ho 10-40 wt. %.
Lisebelisoa tsa lifilimi tse nang le ts'ebetso e ntle le e thata.
Keketso ea ho lokolla hlobo, lubricant ts'ebetsong ea rabara, thuso ea extrusion le calendering bakeng sa PVC le thuso ea ho qhalakanya bakeng sa ho tsepamisa mohopolo oa mebala.
Li-bearings, likere, bushings le likarolo tse ling tse tsamaeang.
Li-tubing tsa laboratori; ha ho etsoa li-prostheses; ho kenya letsoho motlakase; thepa ea ho paka; kitchenware; lisebelisoa tsa tanka le liphaephe; liaparo tsa pampiri; textile stiffeners.
polyethylene e sebelisoa ho laola viscosity, thepa ea ho emisa, le botsitso bo akaretsang ho litlolo tsa litlolo. E tsoa khase ea petroleum kapa dehydration ea joala.
Chemwin e ka fana ka mefuta e mengata ea li-hydrocarbon tse ngata le li-solvents tsa lik'hemik'hale bakeng sa bareki ba indasteri.Pele ho moo, ka kopo bala lintlha tse latelang mabapi le ho etsa khoebo le rona:
1. Tshireletso
Tšireletseho ke eona ntho e tlang pele bophelong ba rona. Ntle le ho fa bareki tlhahisoleseling mabapi le ts'ebeliso e sireletsehileng le e baballang tikoloho ea lihlahisoa tsa rona, re boetse re ikemiselitse ho netefatsa hore likotsi tsa polokeho ea basebetsi le borakonteraka li fokotsoa ho ba bonyane bo utloahalang le bo ka khonehang. Ka hona, re hloka hore moreki a etse bonnete ba hore litekanyetso tse nepahetseng tsa ho laolla le ho boloka polokeho li fihlelleha pele ho tlisoa ha rona (ka kopo sheba sehlomathiso sa HSSE ho latela maemo le maemo a kakaretso a thekiso a ka tlase). Litsebi tsa rona tsa HSSE li ka fana ka tataiso mabapi le litekanyetso tsena.
2. Mokhoa oa ho fana
Bareki ba ka odara le ho fana ka lihlahisoa ho tsoa ho chemwin, kapa ba ka fumana lihlahisoa ho tsoa femeng ea rona ea tlhahiso. Mekhoa e teng ea lipalangoang e kenyelletsa lipalangoang tsa literaka, terene kapa mefuta e mengata (maemo a arohaneng a sebetsa).
Tabeng ea litlhoko tsa bareki, re ka hlakisa litlhoko tsa likepe kapa litanka mme ra sebelisa litekanyetso tse khethehileng tsa polokeho / tlhahlobo le litlhoko.
3. Palo e fokolang ea taelo
Haeba u reka lihlahisoa sebakeng sa rona sa marang-rang, palo e tlase ea odara ke lithane tse 30.
4.Tefo
Mokhoa o tloaelehileng oa ho lefa ke ho fokotsa ka kotloloho matsatsing a 30 ho tsoa ho invoice.
5. Litokomane tsa thomello
Litokomane tse latelang li fanoe ka thomello ka 'ngoe:
· Bill of Lading, CMR Waybill kapa tokomane e 'ngoe e amehang ea lipalangoang
· Setifikeiti sa Tlhahlobo kapa Tumellano (haeba ho hlokahala)
· Litokomane tse amanang le HSSE tumellanong le melaoana
· Litokomane tsa meetlo ho latela melaoana (haeba ho hlokahala)