Kuchokera kumalingaliro amalingaliro:
PC (Polycarbonate): Ili ndi pulasitiki yopanda mtundu, yowoneka bwino yomwe ndi yokongola komanso yosalala. Chifukwa chosakhala ndi poizoni komanso wopanda fungo, komanso mawonekedwe ake abwino kwambiri otsekereza UV ndi kusunga chinyezi, PC imakhala ndi kutentha kwakukulu. Imakhalabe yosasweka pa -180 ° C ndipo ingagwiritsidwe ntchito kwa nthawi yaitali pa 130 ° C, ndikupangitsa kuti ikhale yabwino kwambiri yopangira chakudya.
PET (Polyethylene Terephthalate) : Ichi ndi zinthu zonyezimira kwambiri, zopanda mtundu, komanso zowonekera zomwe ndi zolimba kwambiri. Ili ndi mawonekedwe ngati galasi, ilibe fungo, ilibe kukoma, komanso yopanda poizoni. Imayaka, imatulutsa lawi lachikasu lokhala ndi m'mphepete mwa buluu ikatenthedwa, ndipo imakhala ndi zinthu zabwino zotchinga mpweya.
Kutengera mawonekedwe ndi magwiridwe antchito:
PC: Imakana kwambiri ndipo ndiyosavuta kuumba, kulola kuti ipangidwe kukhala mabotolo, mitsuko, ndi mawonekedwe osiyanasiyana a chidebe chopakira zakumwa monga zakumwa, mowa, ndi mkaka. Choyipa chachikulu cha PC ndikuchepetsa kupsinjika. Kuti muchepetse izi panthawi yopanga, zopangira zoyera kwambiri zimasankhidwa, ndipo zinthu zosiyanasiyana zogwirira ntchito zimayendetsedwa mosamalitsa. Kuphatikiza apo, kugwiritsa ntchito utomoni wokhala ndi kupsinjika pang'ono kwamkati, monga ma polyolefins ochepa, nayiloni, kapena poliyesitala kuti asungunuke, kumatha kukulitsa kukana kwake kupsinjika ndi kuyamwa kwamadzi.
PET: Ili ndi gawo lochepa la kukulitsa komanso kutsika kwapang'onopang'ono kwa 0.2% yokha, yomwe ndi gawo limodzi mwa magawo khumi a polyolefins ndi otsika kuposa PVC ndi nayiloni, zomwe zimapangitsa miyeso yokhazikika yazinthu. Mphamvu zake zamakina zimaonedwa kuti ndizabwino kwambiri, zokhala ndi zokulitsa zofanana ndi aluminiyumu. Mphamvu zamakanema zamakanema ake ndi kuwirikiza kasanu ndi kamodzi kuposa polyethylene ndi kuwirikiza katatu kuposa polycarbonate ndi nayiloni, pomwe mphamvu zake zimaposa katatu kapena kasanu kuposa zamafilimu wamba. Kuonjezera apo, mafilimu ake ali ndi zolepheretsa chinyezi komanso kusunga fungo. Komabe, mosasamala kanthu za ubwino umenewu, mafilimu a polyester ndi okwera mtengo, ovuta kutenthetsa chisindikizo, ndipo amatha kugwiritsira ntchito magetsi osasunthika, chifukwa chake sagwiritsidwa ntchito kawirikawiri; nthawi zambiri amaphatikizidwa ndi ma resin omwe amakhala ndi kutentha kwabwinoko kuti apange mafilimu ophatikizika.
Chifukwa chake, mabotolo a PET opangidwa pogwiritsa ntchito biaxial stretching blowing process amatha kugwiritsa ntchito bwino mawonekedwe a PET, kupereka kuwonekera bwino, gloss yapamwamba, komanso mawonekedwe ngati galasi, kuwapanga kukhala mabotolo apulasitiki oyenera kwambiri m'malo mwa mabotolo agalasi.
Nthawi yotumiza: Nov-04-2024