Ndi ma resins ati omwe amagwiritsidwa ntchito mu zokutira za ufa wa thermoplastic

Pali ma resin atatu oyambira omwe amagwiritsidwa ntchito kupaka thermoplastic ufa, vinyls, nayiloni ndi polyesters. Zidazi zimagwiritsidwa ntchito pokhudzana ndi zakudya, zida zabwalo lamasewera, ngolo zogulira, mashelufu akuchipatala ndi zina.

Ma thermoplastics ochepa amakhala ndi mawonekedwe osiyanasiyana, magwiridwe antchito komanso kukhazikika komwe kumafunikira pamapulogalamu omwe amagwiritsa ntchito ufa wa thermoset.

Mafuta a Thermoplastic ndi zinthu zolemera kwambiri zomwe zimafunikira kutentha kwambiri kuti zisungunuke ndikuyenda. Amagwiritsidwa ntchito kwambiri ndi bedi lamadzimadzi ndipo mbali zake zonse zimatenthedwa komanso zimatenthedwa.

Zambiri mwa zokutira za ufa wa thermoplastic zimakhala ndi zomatira m'mphepete mwa nyanja kotero kuti gawo lapansi liyenera kuphulika ndi kukonzedwa musanagwiritse ntchito.

Thermoplastic ufa ndi fusible kosatha. Izi zikutanthauza kuti, zikatenthedwa, zimatha kutenthedwa nthawi zonse ndikusinthidwanso kukhala mawonekedwe osiyanasiyana monga momwe wosuta amafunira. Mosiyana ndi izi, ufa wa thermoset, ukatenthedwa ndikuwumbidwa m'mawonekedwe enieni, sungathe kutenthedwanso popanda kuwotcha kapena kusweka. Kufotokozera kwamankhwala kwamtunduwu ndikuti mamolekyu mu thermoplastics amakopeka wina ndi mnzake pomwe mu thermoset amalumikizidwa ndi unyolo.

Mphamvu za Van der Waals zimakopa ndikugwirizanitsa mamolekyu. Popeza kuti thermoplastics amafotokozedwa ndi mphamvu zofooka za van der Waals, maunyolo a molekyulu omwe amapanga thermoplastics amawathandiza kukula ndi kusinthasintha. Kumbali ina, mafuta a thermosetting akatenthedwa, amatha kuchitapo kanthu, ndipo mawonekedwe atsopanowa amadziwika ndi mphamvu zamphamvu za van der Waals. M'malo mopanga maunyolo aatali, amapanga mamolekyu okhala ndi crystalline m'chilengedwe, zomwe zimapangitsa kuti mankhwalawa akhale ovuta kukonzanso kapena kusungunula atachiritsidwa.