Effects of fillers on interlaminar shear performance of carbon fiber-epoxy pultruded plate
Under the condition of the same carbon fiber content,the effects of the type,particle size and amount of fillers on the interlaminar shear properties of carbon fiber-epoxy pultruded plate were investigated.The results show that the addition of ground calcium carbonate,precipitated calcium carbonate,kaolin,aluminum hydroxide powder and talc powder could effectively improve the interlaminar shear properties of carbon plates besides polyethylene micro wax powder,among which aluminum hydroxide performs the best,increasing the interlaminar shear strength of carbon plate by nearly 13%.The most suitable mesh of fillers for pultruded carbon plates is 6.5-11.5 μm.The interlaminar shear strength of carbon plate is the largest of 66.51 MPa when the amount of the aluminum hydroxide powder is 4 phr whose particle size is 6.5 μm.In addition,the 0 ° tensile property of carbon plate decreases after adding aluminum hydroxide.
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