CN213113678U

CN213113678U - Fiber bundle reinforced composite structure

Info

Publication number: CN213113678U
Application number: CN202020705138.2U
Authority: CN
Inventors: 阮芳涛; 夏成龙; 岳阳; 周佳玲; 金灿灿
Original assignee: Anhui Polytechnic University
Current assignee: Anhui Polytechnic University
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-05-04
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a tow reinforcing composite construction, its characterized in that: the yarn fixing device comprises a core yarn arranged in the middle and a fixing yarn wound on the outer side of the core yarn, wherein a decorative yarn is arranged between the core yarn and a contact surface of the fixing yarn. The utility model discloses tow reinforcing composite structure, simple structure can improve the interfacial force of combined material in tensile process to improve the whole mechanical properties of combined material, have stronger practicality and better application prospect.

Description

Fiber bundle reinforced composite structure

Technical Field

The utility model belongs to the technical field of the weaving, more specifically say, relate to a tow reinforcing composite construction.

Background

The fiber reinforced resin matrix composite material is compounded by a fiber reinforced body and polymer resin, the physical properties and chemical properties of a fiber reinforced phase and a polymer matrix are basically not changed, generally speaking, in the fiber reinforced resin matrix composite material, load is mainly born by fibers, and the surrounding polymer matrix can play a role in transmitting stress, so that the fiber reinforced phase can be fixed at a specific position in a certain orientation. The interface between the fiber and the resin is the "heart" of the composite material, and the structure and properties of the interface phase have a great influence on the overall properties of the composite material.

In the prior art, there are three main ways to improve the interfacial shear strength of fiber reinforced composites: one is to improve the strength of the resin or to improve the interfacial force between the resin and the fiber by modifying the resin; another way is to increase the activation energy by surface modification of the reinforcing fibers. However, the two methods have the following defects: the first mode has a limited effect of improving the compressive strength of the fiber reinforced composite material; in the second method, the fiber surface modification treatment is usually an activation modification treatment of the fiber by using chemical reagents, plasma, radiation modification, corona treatment, etc., which, besides the disadvantage of high cost, may cause some damage to the fiber body.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that prior art exists, provide a simple structure, can improve the interfacial force of combined material at tensile in-process to improve the tow reinforcing composite structure of the whole mechanical properties of combined material.

In order to realize the purpose, the utility model discloses the technical scheme who takes does: the provided fiber bundle reinforced composite structure is characterized in that: the yarn fixing device comprises a core yarn arranged in the middle and a fixing yarn wound on the outer side of the core yarn, wherein a decorative yarn is arranged between the core yarn and a contact surface of the fixing yarn.

In order to make the above technical solution more detailed and concrete, the present invention further provides the following preferable technical solution to obtain satisfactory practical effect:

the yarn fixing device comprises a positive yarn fixing device and a negative yarn fixing device, wherein the positive yarn fixing device and the negative yarn fixing device are wound in the positive direction and the negative direction respectively.

And the positive direction yarn fixing and the negative direction yarn fixing are wound on the core yarn at regular intervals.

The decorative yarns are aramid fibers, and the decorative yarns are arranged on two sides of the core yarns.

The middle part of the decorative yarn is pressed below the fixed yarn, and two ends of the decorative yarn extend out of the fixed yarn for a certain length.

The core yarn is a carbon fiber bundle composed of carbon fibers.

The solid yarn is wrapped outside the core yarn by adopting polyester fiber bidirectional winding.

Compared with the prior art, the utility model, have following advantage: the utility model discloses tow reinforcing composite structure, simple structure can improve the interfacial force of combined material in tensile process to improve the whole mechanical properties of combined material, have stronger practicality and better application prospect.

Drawings

The contents of the drawings and the reference numerals in the drawings of the present specification will be briefly described as follows:

FIG. 1 is a schematic view of the fiber bundle reinforced composite structure of the present invention;

labeled as: 1. core yarn, 2, positive direction yarn fixing, 3, reverse direction yarn fixing, 4 and decorative yarn.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.

The utility model discloses this kind of fibre bundle reinforcing composite construction, as shown in figure 1, including the core yarn 1 who locates the middle part, and the solid yarn of winding in the core yarn 1 outside, be equipped with between core yarn 2 and the solid yarn contact surface and decorate yarn 4. The utility model discloses fibre bundle reinforcing composite construction improves the interface adhesive force between reinforcing fibre bundle and resin through the effective area of contact who increases decorations yarn and resin matrix for reinforcing composite's interface shearing strength improves 10-15% than former reinforcing fibre bundle, and this simple structure provides a new way for adopting simple method to obtain high performance fiber reinforcement composite.

The utility model discloses in, the solid yarn is including respectively along two positive and negative direction winding forward solid yarn 2 and reverse solid yarn 3 to further increase structural strength. The forward direction fixing yarns 2 and the reverse direction fixing yarns 3 are wound around the core yarn 1 at regular intervals as shown in fig. 1.

In the utility model, the core yarn 1 is a carbon fiber bundle composed of carbon fibers. The fixed yarn is wrapped outside the core yarn 1 by adopting polyester fiber bidirectional winding. The decorative yarn 4 is aramid fiber, and the decorative yarn 4 is arranged on two sides of the core yarn 1. The middle part of the decorative yarn 4 is pressed under the fixing yarn, and both ends of the decorative yarn extend out of the fixing yarn by a certain length to form high interfacial adhesion with the resin, as shown in fig. 1.

The utility model discloses fibre bundle reinforcing composite construction includes the imitative fancy spinning fibre bundle that core yarn 1, decoration yarn 4 and solid yarn made up. The high-performance fiber-reinforced resin-based composite material prepared by adopting the fiber bundle-reinforced composite structure has the advantages of light weight, high strength, strong impact resistance, good corrosion resistance and the like, and is an ideal material for lightening structural materials. The fiber bundle reinforcement is structurally designed, carbon fibers are used as core yarns 1, aramid fibers are used as decorative yarns 4, polyester fibers are used as solid yarns, feather-like carbon fibers with different structures are designed and prepared to improve the interface performance between the carbon fibers and resin, then the carbon fiber composite material is prepared by a hot pressing method, evaluation tests can be carried out, and the influence of the feather-like structure on the stretching, bending and impact properties of the composite material is researched.

The utility model discloses tow reinforcing composite structure, simple structure can improve the interfacial force of combined material in tensile process to improve the whole mechanical properties of combined material, have stronger practicality and better application prospect.

The present invention has been described above with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, and various insubstantial improvements or direct applications to other applications can be achieved by using the method and technical solution of the present invention, which all fall within the protection scope of the present invention.

Claims

1. A fiber bundle reinforced composite structure characterized by: the yarn fixing device comprises a core yarn arranged in the middle and a fixing yarn wound on the outer side of the core yarn, wherein a decorative yarn is arranged between the contact surface of the core yarn and the fixing yarn; the decorative yarns are aramid fibers, the decorative yarns are arranged on two sides of the core yarns, the middle parts of the decorative yarns are in compression joint below the fixed yarns, and two ends of the decorative yarns extend out of the fixed yarns for a certain length.

2. The fiber bundle reinforced composite structure of claim 1, wherein: the yarn fixing device comprises a positive yarn fixing device and a negative yarn fixing device, wherein the positive yarn fixing device and the negative yarn fixing device are wound in the positive direction and the negative direction respectively.

3. The fiber bundle reinforced composite structure of claim 2 wherein: and the positive direction yarn fixing and the negative direction yarn fixing are wound on the core yarn at regular intervals.

4. The fiber bundle reinforced composite structure according to any one of claims 1 to 3, wherein: the core yarn is a carbon fiber bundle composed of carbon fibers.

5. The fiber bundle reinforced composite structure of claim 4 wherein: the solid yarn is wrapped outside the core yarn by adopting polyester fiber bidirectional winding.