litaba

Polymer e Matlafalitsoeng ea Fiberglass (GFRP)ke thepa e sebetsang hantle e kopantsoeng le likhoele tsa khalase e le sesebelisoa sa ho matlafatsa le resin ea polymer e le matrix, ho sebelisoa mekhoa e itseng. Sebopeho sa eona sa mantlha se entsoe ka likhoele tsa khalase (tse kangKhalase ea elektronike, Khalase ea S, kapa khalase ea AR e matla haholo) e nang le bophara ba 5∼25μm le matrices ea thermosetting joalo ka epoxy resin, polyester resin, kapa vinyl ester, ka karolo ea bophahamo ba faeba e atisang ho fihla ho 30%∼70% [1-3]. GFRP e bonts'a thepa e ntle haholo joalo ka matla a itseng a fetang 500 MPa/(g/cm3) le modulus e itseng e fetang 25 GPa/(g/cm3), ha e ntse e na le litšobotsi tse kang ho hanyetsa mafome, ho hanyetsa mokhathala, coefficient e tlase ea katoloso ea mocheso [(7∼12)×10−6 °C−1], le ponaletso ea motlakase.

Lefapheng la lifofane, ts'ebeliso ea GFRP e qalile lilemong tsa bo-1950 'me joale e se e le thepa ea bohlokoa bakeng sa ho fokotsa boima ba sebopeho le ho ntlafatsa ts'ebeliso e ntle ea mafura. Ha re nka Boeing 787 e le mohlala, GFRP e ikarabella bakeng sa 15% ea meaho ea eona e seng ea mantlha e jarang mojaro, e sebelisoang likarolong tse kang li-fairings le li-winglets, e fihlella phokotso ea boima ba 20% ~ 30% ha e bapisoa le li-alloy tsa aluminium tsa setso. Kamora hore mahlakore a fatše a kabati a Airbus A320 a nkeloe sebaka ke GFRP, boima ba karolo e le 'ngoe bo fokotsehile ka 40%, 'me ts'ebetso ea eona libakeng tse mongobo e ntlafetse haholo. Lefapheng la helikopthara, liphanele tsa kahare tsa kabati ea Sikorsky S-92 li sebelisa sebopeho sa sandwich sa mahe a linotši sa GFRP, ho fihlella tekano lipakeng tsa ho hanyetsa tšusumetso le ho lieha ha mollo (ho latela maemo a FAR 25.853). Ha ho bapisoa le Carbon Fiber Reinforced Polymer (CFRP), litšenyehelo tsa thepa e tala tsa GFRP li fokotsehile ka 50% ~ 70%, e leng se fanang ka monyetla o moholo oa moruo likarolong tse seng tsa mantlha tse jarang mojaro. Hona joale, GFRP e theha sistimi ea ts'ebeliso ea gradient ea thepa e nang le fiber ea carbon, e khothalletsang nts'etsopele e pheta-phetoang ea lisebelisoa tsa lifofane ho ea ho bobebe, bophelo bo bolelele le litšenyehelo tse tlase.

Ho ya ka pono ya thepa ya mmele,GFRPe boetse e na le melemo e ikhethang mabapi le ho bebofatsa, thepa ea mocheso, ho hanyetsa ho bola, le ts'ebetso. Mabapi le ho bebofatsa, boima ba faeba 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 ho tsofala tsa mocheso o phahameng, sekhahla sa ho boloka matla se fetile 85% kamora lihora tse 1,000 ho 180 °C. Ho feta moo, GFRP e qoelitsoeng ka tharollong ea NaCl ea 3.5% ka selemo se le seng e bontšitse tahlehelo ea matla e ka tlase ho 5%, ha tšepe ea Q235 e bile le tahlehelo ea boima ba ho bola ea 12%. Khanyetso ea eona ea asiti e hlahelletse, ka sekhahla sa phetoho ea boima se tlase ho 0.3% le sekhahla sa katoloso ea bophahamo se tlase ho 0.15% kamora matsatsi a 30 tharollong ea HCl ea 10%. Lisampole tsa GFRP tse phekotsoeng ka silane li bolokile sekhahla sa ho boloka matla a kobehileng 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 thepa ea mantlha ea sefofane e sebetsang hantle moralong le tlhahisong ea lifofane, e nang le bohlokoa bo boholo ba maano indastering ea lifofane tsa sejoale-joale le nts'etsopele ea theknoloji.