1, Gabatarwar fim ɗin polyester

Polyester fim kuma ana kiransa fim ɗin polyester (PET) (fim ɗin haske, fim ɗin polyester, takarda mai mahimmanci, fim ɗin polyester, fim ɗin benzene tin, cellophane, fim ɗin saki), polyethylene terephthalate ne azaman albarkatun ƙasa, yin amfani da hanyar extrusion cikin fim mai kauri, sannan kuma mikewa bidirectional da aka yi da kayan fim.

Fim ɗin polyester na gida (fim ɗin polyester, fim ɗin kare muhalli, fim ɗin PET, fim ɗin opal da sauran bugu da bugu da ƙari), ana amfani da su sosai a cikin fiber gilashin ƙarfafa masana'antar filastik, masana'antar kayan gini, masana'antar bugu, magani da lafiya.

A halin yanzu, kasar Sin ta samu nasarar kera wani fim na PET mai murdawa, wanda ba shi da guba, mara launi, bayyananne, juriya da danshi, numfashi, taushi, mai karfi, mai mai acid-alkali da juriya, ba tare da tsoron zafi da zafi ba.Wani abu ne mara guba, mai sauƙin sake amfani da shi, galibi ana amfani dashi a cikin abubuwan sha iri-iri, ruwan ma'adinai da marufi na fim, a halin yanzu ana amfani da shi sosai a duniya ɗayan kayan tattarawa.

Fim ɗin Mylar wani nau'i ne na fim ɗin filastik na polymer, saboda kyawawan kyawawan kaddarorin sa kuma mafi yawan masu amfani sun fi son su.Kasancewar har yanzu matakin samar da fasaha na kasar Sin ba zai iya biyan bukatun kasuwa ba, har yanzu wasu na bukatar dogaro kan shigo da kayayyaki.

2, polyester film Properties

PET babban polymer ne, sakamakon rashin ruwa na ethylene terephthalate.Ana samun Glycol terephthalate ta hanyar esterification na terephthalic acid da glycol.PET farin madara ne ko rawaya mai haske, polymer crystalline sosai tare da santsi, ƙasa mai sheki.

PET yana da kyawawan kaddarorin (juriya mai zafi, juriya na sinadarai).Ƙarfin ƙarfi da ƙarfi, rufin lantarki, aminci, da dai sauransu), arha, don haka ana amfani da shi sosai azaman fiber, fim, robobin injiniya, kwalabe polyester da sauransu.

PET yana da kyawawan kaddarorin jiki da na injina a cikin kewayon zafin jiki mai faɗi, zafin amfani na dogon lokaci har zuwa 120 ℃, ingantaccen rufin lantarki, har ma a babban zafin jiki da mitar mita, kaddarorin wutar lantarki har yanzu suna da kyau, amma ƙarancin juriya na corona, anti-mai guba. , Juriya yanayi, sinadarai juriya kwanciyar hankali, creep, gajiya juriya, gogayya juriya, girma da kwanciyar hankali suna da kyau sosai.Rashin shayar da ruwa, juriya ga raunin acid da kaushi na halitta, amma ba zafi mai juriya ga nutsar da ruwa ba, ba juriya na alkali ba.

Yawancin lokaci PET ba shi da launi mai haske, fim mai ban sha'awa (ƙarar barbashi yanzu za a iya ƙara shi don sanya shi da launi), kyawawan kayan aikin injiniya, high rigidity, taurin da taurin, huda juriya, gogayya juriya, high zafin jiki da kuma low zazzabi juriya, sinadaran juriya, mai. juriya, tsananin iska da adana ƙamshi, yana ɗaya daga cikin abubuwan da aka saba amfani da su na hana shigar da fim ɗin, amma juriyar corona ba ta da kyau.