PET ndi PE ndizofanana

Kodi PET ndi PE Ndizofanana?

PET polyethylene terephthalate.

PE ndi polyethylene.

PE: polyethylene
Ndi imodzi mwazinthu zomwe zimagwiritsidwa ntchito polima m'moyo watsiku ndi tsiku, ndipo zimagwiritsidwa ntchito kwambiri popanga matumba apulasitiki, mafilimu apulasitiki, ndi zidebe za mkaka.
Polyethylene ndi kugonjetsedwa ndi zosungunulira zosiyanasiyana organic ndi dzimbiri zosiyanasiyana zidulo ndi zapansi, koma osati okosijeni zidulo monga nitric asidi.Polyethylene imatulutsa okosijeni m'malo okhala ndi okosijeni.
Polyethylene ikhoza kuonedwa kuti ndi yowonekera mu filimuyi, koma ikakhala yochuluka, idzakhala yosamveka chifukwa cha kuwala kwamphamvu kubalalika chifukwa cha kukhalapo kwa makristasi ambiri mmenemo.Mlingo wa polyethylene crystallization amakhudzidwa ndi chiwerengero cha nthambi, ndipo nthambi zambiri, ndizovuta kwambiri crystallize.Kutentha kwa kristalo kusungunuka kwa polyethylene kumakhudzidwanso ndi kuchuluka kwa nthambi, kuyambira 90 digiri Celsius mpaka 130 digiri Celsius.Nthambi zambiri, m'pamenenso kutentha kumasungunuka.Makhiristo a polyethylene amodzi amatha kukonzedwa posungunula HDPE mu xylene pa kutentha kopitilira 130 digiri Celsius.

PET: polyethylene terephthalate
Polima wa terephthalic acid ndi ethylene glycol.Chidule cha Chingerezi ndi PET, chomwe chimagwiritsidwa ntchito kwambiri popanga polyethylene terephthalate fiber.Dzina la malonda aku China ndi polyester.Mtundu uwu wa fiber uli ndi mphamvu zambiri komanso kuvala bwino kwa nsalu yake.Pakali pano ndi mitundu yochuluka kwambiri ya ulusi wopangira.Mu 1980, kutulutsa kwapadziko lonse kunali pafupifupi matani 5.1 miliyoni, zomwe zidapangitsa 49% yazotulutsa zonse zapadziko lapansi.
Kuchuluka kwa ma symmetry a kapangidwe ka maselo ndi kukhazikika kwa unyolo wa p-phenylene kumapangitsa kuti polima akhale ndi mawonekedwe a crystallinity apamwamba, kutentha kwambiri kusungunuka komanso kusasungunuka konsekonse kosungunulira organic.Kutentha kosungunuka ndi 257-265 ° C;kuchuluka kwake kumawonjezeka ndi Mlingo wa crystallinity ukuwonjezeka, kachulukidwe ka amorphous state ndi 1.33 g / cm ^ 3, ndipo kachulukidwe ka fiber ndi 1.38-1.41 g / cm ^ 3 chifukwa cha kuwonjezeka kwa crystallinity pambuyo kutambasula.Kuchokera ku phunziro la X-ray, amawerengedwa kuti wathunthu Kachulukidwe ka makhiristo ndi 1.463 g/cm^3.Kutentha kwa kusintha kwa galasi kwa polima amorphous kunali 67 ° C;crystalline polima inali 81°C.Kutentha kwa maphatikizidwe a polima ndi 113-122 J/g, kutentha kwapadera ndi 1.1-1.4 J/g.Kelvin, dielectric constant ndi 3.0-3.8, ndipo kukana kwenikweni ndi 10 ^ 11 10 ^ 14 ohm.cm.PET sisungunuka mu zosungunulira wamba, zimasungunuka mu zosungunulira zina zowononga kwambiri monga phenol, o-chlorophenol, m-cresol, ndi trifluoroacetic acid.Ulusi wa PET ndi wokhazikika ku ma asidi ofooka ndi maziko.
Ntchito Imagwiritsidwa ntchito makamaka ngati zopangira zopangira ulusi.Ulusi waufupi ukhoza kusakanikirana ndi thonje, ubweya, ndi hemp kupanga zovala za zovala kapena nsalu zokongoletsera mkati;filaments angagwiritsidwe ntchito ngati ulusi zovala kapena ulusi mafakitale, monga nsalu fyuluta, zingwe tayala, parachuti, malamba conveyor, lamba chitetezo etc. filimu angagwiritsidwe ntchito ngati maziko a photosensitive filimu ndi matepi audio.Ziwalo zopangidwa ndi jakisoni zitha kugwiritsidwa ntchito ngati zotengera zoyikamo.

Makina athu onyamula amatha kudzaza mabotolo a PE ndi PET