PET uye PE zvakafanana

PET uye PE zvakafanana here?

PET polyethylene terephthalate.

PE inonzi polyethylene.

PE: polyethylene
Ndiyo imwe yeanonyanya kushandiswa polymer zvinhu muhupenyu hwezuva nezuva, uye anoshandiswa zvakanyanya mukugadzira mabhegi epurasitiki, epurasitiki mafirimu, uye mukaka migomo.
Polyethylene inoshingirira kune dzakasiyana siyana organic zvinonyungudutsa uye ngura yemaasidhi akasiyana-siyana uye mabhesi, asi kwete kune oxidative acids senge nitric acid.Polyethylene ichaita oxidize munzvimbo ine oxidizing.
Polyethylene inogona kuonekwa seyakajeka muhurumende yefirimu, asi kana iripo yakawanda, inenge isina kujeka nekuda kwekupararira kwechiedza chakasimba nekuda kwekuvapo kwenhamba yakawanda yemakristasi mairi.Iyo dhigirii ye polyethylene crystallization inobatwa nenhamba yematavi, uye iyo yakawanda matavi, iyo yakanyanya kuoma iyo crystallize.Iyo tembiricha yekunyungudika kwekristaro ye polyethylene inobatwawo nehuwandu hwematavi, kubva pa90 degrees Celsius kusvika 130 degrees Celsius.Kuwanda kwematavi, kunoderedza tembiricha yekunyungudika.Polyethylene single crystals inowanzo gadzirirwa nekunyungudutsa HDPE muxylene patembiricha iri pamusoro pe130 degrees Celsius.

PET: polyethylene terephthalate
Iyo polymer ye terephthalic acid uye ethylene glycol.Chirevo cheChirungu chinonzi PET, chinonyanya kushandiswa mukugadzira polyethylene terephthalate fiber.Zita rekutengeserana reChinese ndiro polyester.Rudzi urwu rwefiber rine simba rakawanda uye kuita kwakanaka kwekupfeka kwejira rayo.Parizvino ndiyo inonyanya kugadzirwa zvakasiyana-siyana zvesynthetic fibers.Muna 1980, goho repasi rose rakasvika matani 5.1 miriyoni, zvichiverengera makumi mana nepfumbamwe muzana epasi rose rekugadzira faibha kubuda.
Iyo yakakwirira ye symmetry yechimiro chemolecular uye kusimba kwep-phenylene chain inoita kuti iyo polymer ive nehunhu hwehupamhi hwekristaro, tembiricha yekunyungudika uye isinganyungudika mune zvakajairika organic solvents.Tembiricha yekunyunguduka i257-265 °C;kuwanda kwayo kunowedzera neChiyero chekristallini chinowedzera, huwandu hweamorphous state ndeye 1.33 g / cm ^ 3, uye huwandu hwefiber ndeye 1.38-1.41 g / cm ^ 3 nekuda kwekuwedzera kwekristallinity mushure mekutambanudza.Kubva pakudzidza kwe-X-ray, inotarwa kuti yakakwana Iyo density yemakristasi ndeye 1.463 g / cm ^ 3.Tembiricha yekuchinja kwegirazi yeamorphous polymer yaive 67°C;iyo crystalline polymer yaive 81°C.Kupisa kwekusanganiswa kwepolymer ndeye 113-122 J/g, iyo chaiyo yekupisa inokwana 1.1-1.4 J/g.Kelvin, iyo dielectric constant is 3.0-3.8, uye yakananga kushorwa ndeye 10 ^ 11 10 ^ 14 ohm.cm.PET haina kunyungudika muzvinonyungudutsa zvakajairika, inonyungudika mune zvimwe zvinonyungudutsa zvakanyanya senge zvakasanganiswa zvinonyungudutsa zve phenol, o-chlorophenol, m-cresol, uye trifluoroacetic acid.PET fibers yakagadzikana kune isina simba acids uye mabhesi.
Kushandisa Inonyanya kushandiswa seyakagadzirwa zvinhu zvekugadzira fibers.Mahombe mapfupi anogona kusanganiswa nedonje, makushe, uye hemp kugadzira zvipfeko zvembatya kana machira ekushongedza mukati;filaments inogona kushandiswa seshinda dzembatya kana shinda dzemaindasitiri, semachira esefa, tambo dzetai, parachuti, mabhandi ekutakura, bhandi rekuchengetedza etc. Iyo firimu inogona kushandiswa sehwaro hwemafotosensitive firimu uye tepi yekuteerera.Majekiseni akaumbwa zvikamu zvinogona kushandiswa semidziyo yekurongedza.

Michina yedu yekurongedza inogona kuzadza PE uye PET mabhodhoro