PET da PE iri ɗaya ne

Shin PET da PE iri ɗaya ne?

PET polyethylene terephthalate.

PE shine polyethylene.

PE: polyethylene
Yana daya daga cikin kayan aikin polymer da aka fi amfani dashi a rayuwar yau da kullun, kuma ana amfani dashi sosai wajen kera buhunan filastik, fina-finai na filastik, da bokitin madara.
Polyethylene yana da juriya ga nau'ikan kaushi na kwayoyin halitta da lalata nau'ikan acid da tushe daban-daban, amma ba ga acid oxidative kamar nitric acid ba.Polyethylene zai yi oxidize a cikin yanayi mai oxidizing.
Polyethylene za a iya la'akari da shi a fili a cikin yanayin fim, amma lokacin da ya kasance a cikin girma, zai zama maras kyau saboda hasken haske mai karfi saboda kasancewar adadin lu'ulu'u a ciki.Matsayin crystallization na polyethylene yana shafar yawan rassan rassan, kuma mafi yawan rassan, yana da wuya a yi kristal.Har ila yau, yanayin narkewar crystal na polyethylene yana shafar yawan rassan, wanda ke tsakanin digiri 90 na ma'aunin celcius zuwa digiri 130 a ma'aunin celcius.Yawancin rassan, ƙananan zafin jiki na narkewa.Polyethylene guda lu'ulu'u yawanci ana iya shirya ta ta hanyar narkar da HDPE a cikin xylene a yanayin zafi sama da digiri 130 na ma'aunin celcius.

PET: polyethylene terephthalate
Polymer na terephthalic acid da ethylene glycol.Gajartawar Ingilishi ita ce PET, wacce galibi ana amfani da ita wajen kera fiber polyethylene terephthalate.Sunan kasuwancin Sin polyester.Irin wannan fiber yana da ƙarfi mai ƙarfi da kyakkyawan aikin sawa na masana'anta.A halin yanzu shine nau'in zaruruwan roba mafi amfani.A cikin 1980, abin da aka fitar a duniya ya kai tan miliyan 5.1, wanda ya kai kashi 49 cikin 100 na jimillar fiber na roba a duniya.
Babban darajar sifa na tsarin kwayoyin halitta da rigidity na p-phenylene sarkar sa polymer yana da halaye na high crystallinity, high narkewa zafin jiki da kuma insoluble a general Organic kaushi.Yanayin narkewa shine 257-265 ° C;yawanta yana ƙaruwa tare da ƙimar crystallinity yana ƙaruwa, ƙarancin yanayin amorphous shine 1.33 g / cm ^ 3, kuma yawancin fiber shine 1.38-1.41 g / cm ^ 3 saboda karuwar crystallinity bayan mikewa.Daga binciken X-ray, an ƙididdige cewa cikakken ƙimar lu'ulu'u shine 1.463 g/cm^3.Gilashin canjin zafin jiki na amorphous polymer shine 67 ° C;kristal polymer ya kasance 81 ° C.Zafin fusion na polymer shine 113-122 J / g, ƙayyadaddun ƙarfin zafi shine 1.1-1.4 J / g.Kelvin, dielectric akai-akai shine 3.0-3.8, kuma takamaiman juriya shine 10 ^ 11 10 ^ 14 ohm.cm.PET ba shi da narkewa a cikin kaushi na gama-gari, kawai mai narkewa a cikin wasu kaushi masu kaushi na halitta kamar gaurayawan kaushi na phenol, o-chlorophenol, m-cresol, da trifluoroacetic acid.Filayen PET sun tsaya tsayin daka ga raunin acid da tushe.
Aikace-aikace Ana amfani dashi galibi azaman albarkatun ƙasa don zaruruwan roba.Za a iya haɗa gajerun zaruruwa tare da auduga, ulu, da hemp don yin suturar tufafi ko kayan ado na ciki;Za a iya amfani da filaments a matsayin yadudduka na tufafi ko yadudduka na masana'antu, irin su zanen tacewa, igiyoyin taya, parachutes, bel mai ɗaukar nauyi, bel na tsaro da dai sauransu. Ana iya amfani da fim din a matsayin tushe don fim ɗin hotuna da kuma tef mai jiwuwa.Za a iya amfani da sassan da aka ƙera allura azaman kwantena.

Injin tattara kayanmu na iya cika kwalaben PE da PET