Disadvantages ntawm Fiberglass

Tsawg elastic modulus
Lub elastic modulus ntawm FRP yog ob zaug loj dua ntoo, tab sis 10 npaug me dua li hlau (E=2.1 × 105). Yog li ntawd, lub rigidity feem ntau tsis txaus nyob rau hauv cov khoom qauv thiab nws yog ib qho yooj yim mus deform.
Nws tuaj yeem ua rau lub plhaub nyias nyias lossis cov qauv sandwich, los yog nws tuaj yeem raug them los ntawm cov khoom siv fiber ntau los yog cov khoom siv ntxiv.
Tsis zoo rau lub sij hawm ntev kub tsis kam
Feem ntau, FRP tsis tuaj yeem siv rau lub sijhawm ntev ntawm qhov kub thiab txias. Lub zog ntawm cov hom phiaj polyester FRP poob qis dua 50 degree, thiab feem ntau tsuas yog siv qis dua 100 degree. Lub zog ntawm lub hom phiaj dav dav epoxy FRP poob qis dua 60 degree. Txawm li cas los xij, qhov kub-resistant resin tuaj yeem raug xaiv los ua haujlwm ntev ntawm 200 thiab 300 degree.
Kev laus tshwm sim
Kev laus yog qhov tsis xws luag ntawm cov yas, thiab FRP tsis muaj qhov tshwj xeeb. Nws tuaj yeem yooj yim ua rau kev ua haujlwm tsis zoo nyob rau hauv qhov kev txiav txim ntawm ultraviolet rays, cua, xuab zeb, nag, daus, tshuaj lom neeg, kev ntxhov siab, thiab lwm yam.
Tsawg shear zog
Lub zog interlaminar shear lub zog yog yug los ntawm cov cob, yog li nws tsawg heev. Lub interlayer adhesion tuaj yeem txhim kho los ntawm kev xaiv cov txheej txheem, siv cov coupling agents, thiab lwm yam. Qhov tseem ceeb tshaj plaws yog kom tsis txhob shearing ntawm txheej thaum lub sij hawm tsim khoom.