nkhani

Pali mitundu iwiri ya utomoni womwe umagwiritsidwa ntchito popanga kompositi: thermoset ndi thermoplastic.Ma resins a Thermoset ndi omwe amapezeka kwambiri, koma ma resins a thermoplastic akupeza chidwi chifukwa chakukula kwa ma composites.
Ma resin a Thermoset amauma chifukwa cha machiritso, omwe amagwiritsa ntchito kutentha kupanga ma polima olumikizana kwambiri omwe amakhala ndi zomangira zosasungunuka kapena zosasunthika zomwe sizisungunuka zikatenthedwa.Komano, ma resins a thermoplastic ndi nthambi kapena maunyolo a monomers omwe amafewetsa akatenthedwa ndikukhazikika atakhazikika, njira yosinthika yomwe sifunikira kulumikizana ndi mankhwala.Mwachidule, mutha kukonzanso ndikusinthanso ma resins a thermoplastic, koma osati ma resins a thermoset.

Chidwi cha ma composites a thermoplastic chikukula, makamaka m'makampani opanga magalimoto.

Ubwino wa Thermosetting Resins
Ma resins a Thermoset monga epoxy kapena poliyesitala amakondedwa pakupanga kompositi chifukwa cha kuchepekedwa kwawo komanso kulowera kwabwino mu network ya fiber.Chifukwa chake ndizotheka kugwiritsa ntchito ulusi wambiri ndikuwonjezera mphamvu yazinthu zomalizidwa.

Mbadwo waposachedwa wa ndege nthawi zambiri umakhala ndi zigawo zopitilira 50 peresenti.

Pa pultrusion, ulusi umaviikidwa mu thermoset resin ndikuyikidwa mu nkhungu yotentha.Opaleshoniyi imayambitsa kuchiritsa komwe kumasintha utomoni wocheperako wa mamolekyulu kukhala mawonekedwe olimba amitundu itatu momwe maulusi amatsekeredwa mu netiweki yatsopanoyi.Popeza machiritso ambiri amakhala owopsa, izi zimapitilirabe ngati unyolo, zomwe zimapangitsa kupanga kwakukulu.Utotowo ukangokhazikika, mawonekedwe a mbali zitatu amatseka ulusiwo m'malo mwake ndipo amapereka mphamvu ndi kuuma kwa gululo.