litaba

Fiberglass Reinforced Polymer (GFRP)ke lisebelisoa tse phahameng tsa ts'ebetso tse kopantsoeng ho tloha likhoele tsa khalase e le ntho e matlafatsang le resin ea polymer e le matrix, ho sebelisa mekhoa e itseng. Sebopeho sa eona sa mantlha se na le likhoele tsa khalase (joalo kaKhalase ea E, S-glass, kapa high-power AR-glass) e nang le bophara ba 5∼25μm le matrices a thermosetting joaloka epoxy resin, polyester resin, kapa vinyl ester, e nang le karoloana ea fiber volume e atisang ho fihla ho 30% ~ 70% [1-3]. GFRP e bonts'a thepa e ntle haholo joalo ka matla a ikhethileng a fetang 500 MPa / (g / cm3) le modulus e ikhethang e fetang 25 GPa / (g / cm3), ha e ntse e e-na le litšobotsi tse kang ho hanyetsa kutu, ho hanyetsa mokhathala, "coefficient" e fokolang ea ho atolosa mocheso [(7-12) × 10−6 pare, magnetic −1 le electromagnetic.

Lefapheng la lifofane, ts'ebeliso ea GFRP e qalile lilemong tsa bo-1950 'me joale e se e le lisebelisoa tsa bohlokoa bakeng sa ho fokotsa boima ba sebopeho le ho ntlafatsa ts'ebetso ea mafura. Ha re nka Boeing 787 e le mohlala, GFRP e nka karolo ea 15% ea meaho ea eona e se nang moroalo oa mantlha, e sebelisoang likarolong tse kang li-fairing le mapheo, ho finyella ho fokotsa boima ba 20% ~ 30% ha ho bapisoa le li-alloys tsa setso tsa aluminium. Kamora hore maballo a mokatong oa khabin ea Airbus A320 a nkeloe sebaka ke GFRP, boima ba karolo e le 'ngoe bo theohile ka 40%, mme ts'ebetso ea eona libakeng tse mongobo e ile ea ntlafala haholo. Lefapheng la helikopta, liphanele tsa ka hare tsa ntlo ea Sikorsky S-92 li sebelisa sebopeho sa sandwich ea khekhe ea linotši ea GFRP, ho fihlela ho leka-lekana pakeng tsa ho hanyetsa tšusumetso le ho lieha ha lelakabe (ho lumellana le FAR 25.853 standard). Ha ho bapisoa le Carbon Fiber Reinforced Polymer (CFRP), theko ea thepa e tala ea GFRP e fokotsehile ka 50% ~ 70%, e fana ka molemo o moholo oa moruo likarolong tse sa tšoaneng tsa ho jara. Hajoale, GFRP e etsa sistimi ea ts'ebeliso ea gradient e nang le fiber ea khabone, e khothaletsang nts'etsopele ea nako e telele ea lisebelisoa tsa sepakapaka ho isa boima bo bobebe, bophelo bo bolelele, le litšenyehelo tse tlase.

Ho ea ka pono ea thepa ea 'mele,GFRPe boetse e na le melemo e ikhethang mabapi le ho bobebe, thepa ea mocheso, ho hanyetsa kutu, le ts'ebetso. Mabapi le boima bo bobebe, boholo ba fiber ea khalase bo tloha ho 1.8∼2.1 g/cm3, e leng 1/4 feela ea tšepe le 2/3 ea alloy ea aluminium. Litekong tsa botsofali ba mocheso o phahameng, sekhahla sa ho boloka matla se feta 85% kamora lihora tse 1,000 ho 180 ° C. Ho feta moo, GFRP e qoelisoa ka tharollo ea 3.5% ea NaCl bakeng sa selemo se le seng e bontšitse tahlehelo ea matla e ka tlaase ho 5%, ha tšepe ea Q235 e ne e e-na le tahlehelo ea boima ba 'mele ea 12%. Ho hanyetsa ha asiti ea eona ho hlahelletse, ka sekhahla sa phetoho e kholo e tlase ho 0.3% le sekhahla sa katoloso ea molumo se tlase ho 0.15% kamora matsatsi a 30 ka tharollo ea 10% ea HCl. Mehlala ea GFRP ea Silane e bolokile sekhahla sa ho boloka matla a kobehang se fetang 90% kamora lihora tse 3,000.

Ka bokhutšoanyane, ka lebaka la motsoako oa eona o ikhethang oa thepa, GFRP e sebelisoa haholo e le sesebelisoa sa sepakapaka se sebetsang hantle haholo ha ho etsoa moralo le ho etsoa ha lifofane, e nang le bohlokoa ba maano indastering ea sejoale-joale ea sefofane le nts'etsopele ea mahlale.