Kune mhando mbiri dzemaresini anoshandiswa kugadzira zvinhu zvinosanganisa: thermoset nethermoplastic. Maresini ethermoset ndiwo anonyanya kushandiswa, asi maresini ethermoplastic ari kuwedzera kufarirwa nekuda kwekuwedzera kuri kuita kushandiswa kwezvinhu zvinosanganisa.
Maresini eThermoset anooma nekuda kwemaitiro ekupisa, ayo anoshandisa kupisa kugadzira mapolymer akabatana zvakanyanya ane zvisungo zvakasimba zvisinganyunguduke kana zvisinganyunguduke kana zvapiswa. Maresini eThermoplastic, kune rumwe rutivi, matavi kana cheni dzemamonomer anonyorova kana apiswa uye anosimba kana atonhodzwa, maitiro anodzokororwa asingade kubatana kwemakemikari. Muchidimbu, unogona kunyungudutsa nekugadzirisa maresini eThermoplastic, asi kwete maresini eThermoset.
Kufarira zvinhu zvinogadzirwa nethermoplastic kuri kuwedzera, kunyanya muindasitiri yemotokari.
Mabhenefiti eThermosetting Resins
Ma resins e thermoset akadai se epoxy kana polyester anodiwa mukugadzira zvinhu zvakasanganiswa nekuda kwekusasimba kwawo uye kupinda zvakanaka mu fiber network. Saka zvinokwanisika kushandisa fiber dzakawanda uye kuwedzera simba re composite yakagadzirwa.
Chizvarwa chendege chazvino chinowanzo sanganisira zvinhu zvinosanganisa zvinopfuura 50 muzana.
Munguva ye pultrusion, fibers dzinonyikwa mu thermoset resin dzoiswa mumold inopisa. Kushanda uku kunotanga kuporesa kunoshandura resin ine uremu hushoma kuita network yakasimba ine mativi matatu umo fibers dzinovharirwa mune iyi network itsva. Sezvo maitiro mazhinji ekuporesa ari exothermic, maitiro aya anoramba ari cheni, zvichiita kuti kugadzirwa kukuru kuitwe. Kana resin yangogadzika, chimiro chetatu-dimensional chinosunga fibers panzvimbo yacho uye chinopa simba nekuomarara kune composite.
Nguva yekutumira: Gumiguru-19-2022
