Kune marudzi maviri ematomu anoshandiswa kugadzira macomposites: thermoset uye thermoplastic. Thermoset resins ndiwo anonyanya kuzivikanwa resin, asi thermoplastic resins ari kuwana kufarira patsva nekuda kwekuwedzera kwekushandiswa kwecomposites.
Thermoset resins inoomesa nekuda kwemaitiro ekurapa, ayo anoshandisa kupisa kuumba yakanyanya kuyambuka-yakabatana mapolymer ane isinganyunguke kana infusible rigid bond isinganyunguduke kana yapiswa. Thermoplastic resins, kune rumwe rutivi, matavi kana cheni dzemamonomers anopfava kana apisa uye anoomesa kana atonhodzwa, maitiro anodzoreredzwa asingade makemikari kubatana. Muchidimbu, iwe unogona kudzoreredza nekugadzirisa thermoplastic resins, asi kwete thermoset resins.
Kufarira thermoplastic composite kuri kukura, kunyanya muindasitiri yemotokari.
Zvakanakira zveThermosetting Resins
Thermoset resins senge epoxy kana polyester inofarirwa mukugadzirwa kwemusanganiswa nekuda kwekushomeka kwadzo uye kupinza kwakanyanya mufiber network. Saka zvinokwanisika kushandisa mamwe mafibhi uye kuwedzera simba rezvakapedzwa zvakaumbwa zvinhu.
Chizvarwa chemazuva ano chendege chinowanzo sanganisira zvinopfuura 50 muzana zvinoumba zvikamu.
Munguva yepultrusion, fiber inonyudzwa mu thermoset resin uye inoiswa muhutu hunopisa. Kuvhiya uku kunomutsa kuita kwekurapa kunoshandura iyo yakaderera-molecular-huremu resin kuita yakasimba-dimensional matatu network chimiro umo mafiber anovharirwa mune iyi ichangobva kuumbwa network. Sezvo maitiro mazhinji ekurapa ari exothermic, maitiro aya anoenderera sengetani, zvichigonesa kugadzirwa kwakakura. Kana resin yangogadzika, chimiro chetatu-dimensional chinovhara mafiber panzvimbo uye inopa simba nekuoma kune inoumbwa.
Nguva yekutumira: Oct-19-2022
