不同经编织物对预成型体定型工艺性及渗透特性的影响

doi:10.7527/S1000-6893.2017.421238

Abstract

Abstract:

In the paper,uniaxial,biaxial and quadriaxial warp knitted fabrics made of domestic T300 carbon fibers-plain were studied,and tests on the settting effect,compressibility and permeability of the preforms were carried out to show the influence of different warp knitted fabrics on setting processability and permeability with the same setting process and amount of tackifer.It is found that during tests on springback of C-shape and thickness,the springback of the thickness of the quadriaxial fabric is about 1.2% and the springback of the C-shape of the quadriaxial fabric is 6°,quadriaxial fabric's shape-fixing performance is the best with the same mass fraction.Besides,the forming results changes with fiber beam width and beam spacing.The test of preform compressibility shows that the quadriaxial fabric is the best.The test of permeability of the preform in-plane shows that quadriaxial preform's in-plane permeability increases by about 15% after the scatteration of the resin.It is confirmed that the quadriaxial fabric has the best RTM process performance and shape-fixing performance after the same amount of resin is scattered on the warp knitted fabric.

Key words: warp knitted fabrics, RTM, tackifier, preform, composites

CLC Number:

V258⁺.3

WU Kaiwen, YANG Jin, LI Long, ZHAO Xiaoran, LIU Gang, LI Shaoliang, ZHAO Yan. Influence of different warp knitted fabrics on processability and permeability of preform[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2017, 38(10): 421238-421238.

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Influence of different warp knitted fabrics on processability and permeability of preform

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