PETG ndi pulasitiki ya PET yosinthidwa. Ndi pulasitiki yowonekera bwino, copolyester yosakhala ya kristalo, PETG yomwe imagwiritsidwa ntchito kwambiri ndi 1,4-cyclohexanedimethanol (CHDM), dzina lonse ndi polyethylene terephthalate-1,4-cyclohexanedimethanol. Poyerekeza ndi PET, pali ma comonomers ambiri a 1,4-cyclohexanedimethanol, ndipo poyerekeza ndi PCT, pali ma ethylene glycol coonomers ambiri. Chifukwa chake, magwiridwe antchito a PETG ndi osiyana kwambiri ndi a PET ndi PCT. Zogulitsa zake ndizowonekera bwino kwambiri ndipo zimakhala ndi kukana kwakukulu kwa mphamvu, makamaka zoyenera kupanga zinthu zowonekera bwino zokhala ndi makoma olimba.
Monga zinthu zomangira,PETGili ndi ubwino wotsatira:
1. Kuwonekera bwino kwambiri, kutumiza kuwala mpaka 90%, kumatha kufika powonekera bwino ngati plexiglass;
2. Ili ndi kulimba komanso kulimba kwamphamvu, kukana kukanda bwino, kukana kugwedezeka ndi kulimba;
3. Ponena za kukana mankhwala, kukana mafuta, kukana chikasu (kutentha kwa nyengo), mphamvu ya makina, ndi kukana mpweya ndi nthunzi ya madzi, PETG ndi yabwino kuposa PET;
4. Sili ndi poizoni komanso limagwira ntchito bwino monga ukhondo, lingagwiritsidwe ntchito pa chakudya, mankhwala ndi ma phukusi ena, ndipo likhoza kutsukidwa ndi ma gamma rays;
5. Zimakwaniritsa zofunikira pa kuteteza chilengedwe ndipo zimatha kubwezeretsedwanso pamtengo wotsika komanso mosavuta. Zinyalala zikawotchedwa, palibe zinthu zovulaza zomwe zingawononge chilengedwe zomwe zidzapangidwe.
Monga zinthu zomangira,PETili ndi ubwino wotsatira:
1. Ili ndi mphamvu zabwino zamakina, mphamvu yake yokhudza ndi yoposa nthawi 3-5 kuposa mafilimu ena, imapirira bwino kupindika, ndipo imakhalabe yolimba pa -30°C;
2. Yolimba ku mafuta, mafuta, asidi wochepa, alkali wochepa, ndi zosungunulira zambiri;
3. Kuchepa kwa mpweya ndi nthunzi ya madzi, kukana mpweya wabwino, madzi, mafuta ndi fungo;
4. Sizowopsa, zopanda kukoma, zaukhondo komanso zotetezeka, zitha kugwiritsidwa ntchito mwachindunji m'maphukusi azakudya;
5. Mtengo wa zipangizo zopangira ndi wotsika mtengo kuposa PETG, ndipo chinthu chomalizidwacho ndi chopepuka komanso chosasweka, zomwe zimathandiza opanga kuchepetsa ndalama zopangira ndi zoyendera, ndipo mtengo wonse ndi wokwera.
PETG ndi yabwino kuposa PET wamba pa zinthu monga kusindikiza ndi kumatira. Kuwonekera bwino kwa PETG kuli kofanana ndi PMMA. Kulimba, kusalala, ndi kuthekera kokonza zinthu pambuyo pa PET ndi kwamphamvu kuposa PET. Poyerekeza ndi PET, kulephera kwa PCTG nakonso n'kodziwikiratu, ndiko kuti, mtengo wake ndi wokwera kwambiri, womwe ndi nthawi 2-3 kuposa wa PET. Pakadali pano, zinthu zambiri zomangira mabotolo zomwe zili pamsika makamaka ndi zinthu za PET. Zipangizo za PET zili ndi mawonekedwe opepuka, owonekera bwino, osagwirizana ndi kugwedezeka komanso osafooka.
Chidule: PETG ndi mtundu watsopano wa PET, wokhala ndi mawonekedwe owonekera bwino, kulimba kwambiri, kukana kugwedezeka bwino, komanso mtengo wake ndi wokwera.
Nthawi yotumizira: Julayi-21-2023
