Na PET le PE li Tšoanang

Na PET le PE li Tšoanang?

PET polyethylene terephthalate.

PE ke polyethylene.

PE: polyethylene
Ke e 'ngoe ea lisebelisoa tsa polymer tse sebelisoang haholo bophelong ba letsatsi le letsatsi,' me e sebelisoa haholo ha ho etsoa mekotla ea polasetiki, lifilimi tsa polasetiki le linkho tsa lebese.
Polyethylene e hanyetsana le lihlapolli tse fapaneng tsa tlhaho le kutu ea li-acid tse fapaneng le metheo, empa eseng ho li-oxidative acid tse kang nitric acid.Polyethylene e tla oxidize tikolohong ea oxidizing.
Polyethylene e ka nkoa e le pepeneneng sebakeng sa filimi, empa ha e le teng ka bongata, e tla ba opaque ka lebaka la ho hasana ha leseli le matla ka lebaka la ho ba teng ha palo e kholo ea likristale ho eona.Tekanyo ea crystallization ea polyethylene e angoa ke palo ea makala, 'me ha makala a ntse a eketseha, ho thata le ho feta ho kristale.Mocheso o qhibilihang oa kristale oa polyethylene o boetse o angoa ke palo ea makala, ho tloha ho likhato tse 90 ho isa ho tse 130 tsa Celsius.Ha makala a ntse a eketseha, mocheso o qhibilihang o tlase.Polyethylene single crystals hangata e ka lokisoa ka ho qhaqha HDPE ka xylene mochesong o ka holimo ho likhato tse 130 tsa Celsius.

PET: polyethylene terephthalate
Polymer ea terephthalic acid le ethylene glycol.Kgutsufatso ea Senyesemane ke PET, e sebelisoang haholo ha ho etsoa fiber ea polyethylene terephthalate.Lebitso la khoebo la Chaena ke polyester.Mofuta ona oa fiber o na le matla a phahameng le ts'ebetso e ntle ea ho apara lesela la eona.Hajoale ke mofuta o hlahisang litholoana haholo oa likhoele tsa maiketsetso.Ka 1980, tlhahiso ea lefats'e e ne e ka ba lithane tse limilione tse 5.1, e leng karolo ea 49% ea kakaretso ea fiber ea maiketsetso lefatšeng.
Tekanyo e phahameng ea symmetry ea sebopeho sa limolek'hule le ho tiea ha ketane ea p-phenylene ho etsa hore polymer e be le litšoaneleho tsa crystallinity e phahameng, mocheso o phahameng oa ho qhibiliha le ho se qhibilihe ka kakaretso ka lihlahisoa tsa tlhaho.Mocheso o qhibilihang ke 257-265 °C;boima ba eona bo eketseha ka Tekanyo ea crystallinity e eketseha, boima ba boemo ba amorphous ke 1.33 g / cm ^ 3, 'me boima ba fiber ke 1.38-1.41 g / cm ^ 3 ka lebaka la ho eketseha ha kristale ka mor'a ho otlolla.Ho tsoa thutong ea X-ray, ho baloa hore e feletseng Boima ba likristale ke 1.463 g / cm^3.Thempereichara ea phetoho ea khalase ea polymer ea amorphous e ne e le 67 ° C;polymer ea kristale e ne e le 81°C.Mocheso oa motsoako oa polymer ke 113-122 J / g, mocheso o khethehileng oa mocheso ke 1.1-1.4 J / g.Kelvin, kamehla dielectric ke 3.0-3.8, 'me khanyetso e khethehileng ke 10^11 10^14 ohm.cm.PET ha e qhibilihe ka har'a lihlapolli tse tloaelehileng, 'me e qhibiliha feela ka har'a metsoako ea lintho tse phelang tse senyang haholo tse kang metsoako e tsoakiloeng ea phenol, o-chlorophenol, m-cresol, le trifluoroacetic acid.Li-fiber tsa PET li tsitsitse ho li-acid tse fokolang le metheo.
Kopo E sebelisoa haholo-holo e le lisebelisoa tse tala bakeng sa likhoele tsa maiketsetso.Likhoele tse khutšoane li ka kopanngoa le k'hothone, boea le hemp ho etsa masela a liaparo kapa masela a mekhabiso ea kahare;likhoele li ka sebelisoa e le likhoele tsa liaparo kapa likhoele tsa indasteri, joalo ka masela a sefang, lithapo tsa thaere, liparachute, mabanta a conveyor, lebanta la polokeho joalo-joalo.Likarolo tse entsoeng ka ente li ka sebelisoa e le lijana tsa ho paka.

Mechini ea rona ea ho paka e ka tlatsa libotlolo tsa PE le PET