Fibre reinforced composites

Fibre reinforced composites

  • CN 103,476,840 B
  • Filed: 08/31/2011
  • Issued: 02/05/2019
  • Est. Priority Date: 04/14/2011
  • Status: Active Grant
First Claim
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1. a kind of fibre reinforced composites, include:

  • Fibre length is the reinforcing fiber of 5mm to 100mm;

    AndThermoplastic resin,Wherein, in the fibre reinforced composites, reinforcing fiber percentage by volume (Vf) in the range of 5% to 80%,AndIn the tan δ

    '"'"' for indicating viscoelasticity characteristic defined in formula (1) and (2), -25 DEG C of fusing point of matrix resin to+In the range of 25 DEG C, the average value of the tan δ

    '"'"' meets formula (3);

    Tan δ

    =G "/G '"'"' (1)Tan δ

    '"'"'=Vf ×

    tan δ

    /(100-Vf) (2)0.01≤

    tanδ





    0.2 (3)Wherein G '"'"' indicates the storage modulus of the fibre reinforced composites as unit of Pa, and G " indicates the institute as unit of PaThe loss modulus of fibre reinforced composites is stated, and Vf indicates the body of reinforcing fiber described in the fibre reinforced compositesProduct percentage.

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