1, polyester firimu sumo

Firimu repolyester rinonziwo polyester film (PET) (light film, polyester film, sensitive paper, polyester film, benzene tin film, cellophane, release film), inonzi polyethylene terephthalate sezvishandiso, kushandiswa kweextrusion nzira kuita gobvu firimu, uyezve bidirectional kutambanudza yakagadzirwa nefirimu zvinhu.

Domestic polyester firimu (polyester firimu, firimu rekuchengetedza kwezvakatipoteredza, PET firimu, opal firimu uye zvimwe kudhinda uye kurongedza zvinoshandiswa), rinoshandiswa zvakanyanya mugirazi fiber reinforced plastic industry, kuvaka indasitiri, indasitiri yekudhinda, mushonga uye hutano.

Parizvino, China yakabudirira kugadzira PET twist firimu, iyo isiri-chepfu, isina ruvara, yakajeka, inodzivirira kunyorova, inofema, yakapfava, yakasimba, acid-alkali girizi uye inonyungudutsa inodzivirira, uye isingatyi kutonhora kwepamusoro uye kwakaderera.Iyo isiri-chepfu, yakajeka inodzokororwa zvinhu, inonyanya kushandiswa mumhando dzakasiyana dzezvinwiwa, mvura yemaminerari uye firimu kurongedza, parizvino inoshandiswa zvakanyanya munyika imwe yemidziyo yekurongedza.

Mylar firimu imhando yepolymer epurasitiki firimu, nekuda kweakanakisa akazara zvivakwa uye zvakanyanya uye zvinofarirwa neruzhinji rwevatengi.Sezvo China kugadzirwa uye tekinoroji level haisati yakwanisa kuzadzisa zvinodiwa pamusika, vamwe vachiri kuda kuvimba nekutenga kunze kwenyika.

2, polyester firimu zvivakwa

PET imhando yepamusoro yepolymer, inokonzerwa nekuderera kwemvura ye ethylene terephthalate.Glycol terephthalate inowanikwa ne esterification ye terephthalic acid uye glycol.PET ichena yemukaka kana yero yakareruka, inonyatso crystalline polima ine nzvimbo yakatsetseka, inopenya.

PET ine yakanakisa zvivakwa (kupisa kusagadzikana, makemikari kuramba).Simba uye kuoma, magetsi ekudzivirira, kuchengetedza, nezvimwewo), zvakachipa, zvakashandiswa zvakanyanya sefiber, firimu, engineering mapurasitiki, mabhodhoro epolyester uye zvichingodaro.

PET ine yakanakisa yemuviri uye yemagetsi zvivakwa munzvimbo yakakura yekupisa, yenguva refu tembiricha inosvika 120 ℃, yakanakisa magetsi ekudzivirira, kunyangwe pakupisa kwakanyanya uye yakakwirira frequency, masimba ayo emagetsi achiri akanaka, asi kushomeka kwekona, anti-chepfu. , kupikisa kwemamiriro ekunze, kugadzikana kwemakemikari, kunyura, kuneta kuramba, kukwesha, kugadzikana kwedimensional kwakanaka kwazvo.Kunyura kwemvura yakaderera, kuramba kune isina simba acids uye organic zvinonyungudutsa, asi kwete kupisa kunopesana nekunyudzwa kwemvura, kwete alkali resistance.

Kazhinji PET haina ruvara yakajeka, firimu rinopenya (zvimedu zvekuwedzera zvino zvinogona kuwedzerwa kuita kuti ive neruvara), yakanakisa mekiniki zvivakwa, kusimba kwakanyanya, kuoma uye kuomarara, kushomeka kwepuncture, friction resistance, kupisa kwakanyanya uye kushomeka kwekushisa, makemikari kuramba, mafuta. kuramba, kusimba kwemhepo uye kuchengetedza kunhuhwirira, ndeimwe yeanowanzo shandiswa anti-penetration composite firimu substrates, asi iyo corona kuramba haina kunaka.