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Carbon fiber winding reinforcing slice and manufacturing method thereof

A technology of carbon fiber and reinforcement sheet, applied in the field of reinforcement sheet and its preparation, can solve the problems of poor reinforcement effect of reinforcement materials, etc., and achieve long storage period, good reinforcement effect and good fiber continuity

Active Publication Date: 2010-12-22
HARBIN FRP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of poor reinforcing effect of existing reinforcing materials, and to provide a carbon fiber winding reinforcing sheet and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0011] Specific Embodiment 1: In this embodiment, the carbon fiber winding reinforcing sheet is made of 65-74 parts by weight of carbon fiber and 26-35 parts of matrix resin. The matrix resin is epoxy resin glue, and the ring Oxygen resin glue is composed of 1 part of solid epoxy resin solution, 0.35 to 0.40 parts of liquid epoxy resin and 0.13 to 0.16 parts of amine curing agent according to the ratio of parts by mass; the solid epoxy resin solution consists of solid Epoxy resin and acetone are mixed according to the mass ratio of 1:1.4-1.8.

specific Embodiment approach 2

[0012] Embodiment 2: This embodiment is different from Embodiment 1 in that the carbon fiber winding reinforcing sheet is made of 70 parts by weight of carbon fiber and 30 parts of matrix resin. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0013] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the amine curing agent is m-phenylenediamine, p-diaminodiphenylmethane or a mixture of the two. Others are the same as those in the first or second embodiment.

[0014] In this embodiment, when the amine curing agent is a mixture of m-phenylenediamine and p-diaminodiphenylmethane, the ratio of each component is arbitrary.

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Abstract

The invention relates to a carbon fiber winding reinforcing slice and a manufacturing method thereof, relating to a reinforcing slice and a manufacturing method thereof. The invention solves the problem that the reinforcing effect of the existing reinforcing material is inferior. The carbon fiber winding reinforcing slice is made of carbon fiber and base resin. The method comprises the steps of weighting raw materials and annularly winding continuous fibers so as to form the carbon fiber winding reinforcing slice. The reinforcing slice of the invention is molded through pre-casting process, has proper hardness and can be stored for a long time. When in use, a user only needs to take the slice out from an ice tank, take off a de-molding slice and pave the slice on an end socket of a carbon fiber winding shell. The use method is simple. Compared with the existing reinforcing material, the reinforcing slice of the invention has better reinforcing effect.

Description

technical field [0001] The invention belongs to the field of composite materials, and relates to a reinforcing sheet and a preparation method thereof. Background technique [0002] Since the modulus of carbon fiber / epoxy composites is larger than that of glass fiber and aramid fiber composites, for carbon fiber wound shells, the discontinuity of the interface area at the edge of the pole mouth is more sensitive. When the shell is under pressure, the connection between the shell and the metal joint forms a high-stress area, and early failure often occurs. In order to prevent premature structural failure and reduce the performance of the shell, local reinforcement is necessary. The strengthening of the head will reduce the local stress concentration of the head, increase the strength of the head, and reduce the weight of the entire shell. Therefore, reinforcement measures should be taken for the upper head of the shell. The commonly used head reinforcement methods include c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K7/06C08K3/04C08G59/50B29C53/56
Inventor 田晶高巨龙赵洪斌张淑萍周晏云张振龙王威力
Owner HARBIN FRP INST
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