PETG ipurasitiki yePET yakagadziriswa. Ipurasitiki inopenya, copolyester isiri crystalline, PETG inowanzoshandiswa inonzi 1,4-cyclohexanedimethanol (CHDM), zita rayo rakazara ipolyethylene terephthalate-1,4-cyclohexanedimethanol. Kana tichienzanisa nePET, kune akawanda 1,4-cyclohexanedimethanol comonomers, uye kana tichienzanisa nePCT, kune akawanda ethylene glycol comonomers. Saka, mashandiro ePETG akasiyana zvikuru neaya ePET nePCT. Zvigadzirwa zvayo zvinopenya zvakanyanya uye zvine simba rekudzivirira, kunyanya zvakakodzera kugadzira zvigadzirwa zvinopenya zvine madziro akakora.
Sezvinhu zvekurongedza,PETGine zvakanakira zvinotevera:
1. Kujeka kwakanyanya, kutumirwa kwechiedza kusvika 90%, kunogona kusvika pakujeka kweplexiglass;
2. Ine kuomarara kwakasimba uye kuomarara, inodzivirira kukwenya kwakanaka, inodzivirira kukuvadzwa uye kuomarara;
3. Panyaya yekusagona kushandisa makemikari, kusagona kushandisa mafuta, kusagona kushandisa mamiriro ekunze (yero), simba remuchina, uye kusagona kushandisa oxygen nemhepo inopisa, PETG iri naniwo pane PET;
4. Haina chepfu, inoshanda zvakanaka uye ine hutsanana, inogona kushandiswa pakudya, mishonga nezvimwe zvinhu zvekurongedza, uye inogona kucheneswa nemwaranzi ye gamma;
5. Inosangana nezvinodiwa zvekuchengetedzwa kwezvakatipoteredza uye inogona kudzokororwazve nemutengo wakaderera uye zviri nyore. Kana marara apiswa, hapana zvinhu zvinokuvadza zvinoisa nharaunda panjodzi zvichagadzirwa.
Sezvinhu zvekurongedza,PETine zvakanakira zvinotevera:
1. Ine hunhu hwakanaka hwemakanika, simba rekukanda rakapetwa katatu kusvika kashanu pane mamwe mafirimu, inodzivirira kupeta zvakanaka, uye ichiri yakasimba pa -30°C;
2. Haipindi mafuta, mafuta, inonyungudutsa acid, inonyungudutsa alkali, uye zvinonyungudutsa zvakawanda;
3. Kupinda kwemhepo shoma nemhepo ine utsi, gasi rakanaka, mvura, mafuta uye kunhuhwirira;
4. Haina chepfu, haina kunaka, yakachena uye yakachengeteka, inogona kushandiswa zvakananga mumapakeji ezvekudya;
5. Mutengo wezvinhu zvakagadzirwa wakachipa pane PETG, uye chigadzirwa chapera chine huremu hwakareruka uye hachigoni kuputsika, izvo zviri nyore kuti vagadziri vaderedze mari yekugadzira nekutakura, uye mashandiro emutengo wese akakwira.
PETG iri nani pane PET yakajairika muzvinhu zvakaita sekugona kudhindwa uye kunamira. Kujeka kwePETG kwakafanana nePMMA. Kuomarara, kutsvedzerera, uye kugona kwePETG mushure mekugadzirisa kwakasimba kupfuura PET. Kana tichienzanisa nePET, kuipa kwePCTG kuri pachenawo, kureva kuti, mutengo wakakwira zvikuru, unova wakapetwa kaviri kusvika katatu kupfuura wePET. Parizvino, zvinhu zvakawanda zvemabhodhoro ekurongedza zviri pamusika zvinonyanya kuve zvinhu zvePET. Zvinhu zvePET zvine hunhu hwehuremu hwakareruka, kujeka kwakanyanya, kuramba kukanganiswa uye kusasimba.
Pfupiso: PETG ishanduro yakagadziridzwa yePET, ine kujeka kwakanyanya, kusimba kwakanyanya, kuramba kukanganiswa kuri nani, uye zvechokwadi mutengo wakakwira.
Nguva yekutumira: Chikunguru-21-2023
