CN215209844U

CN215209844U - Novel glass fiber prepreg cloth

Info

Publication number: CN215209844U
Application number: CN202121073171.9U
Authority: CN
Inventors: 杨胜; 熊雪兵
Original assignee: Xiamen Futong Composite Technology Co ltd
Current assignee: Xiamen Futong Composite Technology Co ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-12-17
Anticipated expiration: 2031-05-19

Abstract

The utility model relates to the technical field of glass fiber prepreg cloth, and discloses a novel glass fiber prepreg cloth, which comprises warp yarn bundles and weft yarn bundles, wherein the glass fiber prepreg cloth is formed by crisscross weaving of the warp yarn bundles and the weft yarn bundles to form a plain weave; the warp thread bundles and the weft thread bundles comprise reinforcing ribs and fiber bundles wound on the reinforcing ribs, and heat-resistant resin layers are arranged on the surfaces of the reinforcing ribs; the fiber bundle comprises a glass fiber bundle and toughening fibers, the glass fiber bundle and the toughening fibers are fixedly connected, and the glass fiber bundle is formed by twisting a plurality of strands of glass fibers. The utility model discloses have higher toughness and wearability, difficult fracture damage has prolonged the life of the fine preimpregnation cloth of glass greatly.

Description

Novel glass fiber prepreg cloth

Technical Field

The utility model relates to a fine preimpregnation cloth technical field of glass, concretely relates to novel fine preimpregnation cloth of glass.

Background

The glass fiber prepreg has the advantages of small density, large modulus, good corrosion resistance, excellent electrical property and the like, and in addition, the glass fiber prepreg has wide raw material source, simple and convenient processing and forming, high production efficiency and strong designability, and is an important composite material widely applied to national economy and national defense construction. However, because the glass fiber is very brittle, the fatigue strength and impact toughness of the existing glass fiber prepreg cloth are difficult to meet the product performance requirements, and the glass fiber prepreg cloth is easy to break under the condition of high impact force.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a novel fine preimpregnation cloth of glass has effectively improved the fatigue strength and the impact toughness of the fine preimpregnation cloth of current glass, can bear higher impact force, difficult breakage.

(II) technical scheme

In order to solve the technical problem, the utility model provides a following technical scheme: a novel glass fiber prepreg cloth comprises warp yarn bundles and weft yarn bundles;

the glass fiber prepreg is formed by weaving warp yarn bundles and weft yarn bundles in a crisscross manner to form a plain weave; the warp thread bundles and the weft thread bundles comprise reinforcing ribs and fiber bundles wound on the reinforcing ribs, and heat-resistant resin layers are arranged on the surfaces of the reinforcing ribs; the fiber bundle comprises a glass fiber bundle and toughening fibers, the glass fiber bundle and the toughening fibers are fixedly connected, and the glass fiber bundle is formed by twisting a plurality of strands of glass fibers.

Further, the glass fiber is high-strength glass fiber.

By the arrangement, the high-strength glass fiber is characterized by high strength and high modulus; the single fiber tensile strength of the glass fiber is 2800MPa, which is about 25 percent higher than that of the alkali-free glass fiber; the elastic modulus of the glass fiber prepreg is 86000MPa, the glass fiber prepreg is higher than the strength of E-glass fiber, the integral rigidity of the glass fiber prepreg can be improved, and the glass fiber prepreg can bear higher impact force and is not easy to break.

Further setting, the toughening fiber is polytetrafluoroethylene fiber.

Due to the arrangement, the polytetrafluoroethylene fiber has good mechanical toughness, can still maintain excellent mechanical property within a wide temperature range of-196-260 ℃, and can improve the impact toughness of the glass fiber prepreg cloth, so that the glass fiber prepreg cloth is not easy to break.

Further, the heat-resistant resin layer is a novolac epoxy resin layer.

So set up, novolac epoxy layer has excellent mechanical properties and high temperature resistance, and the viscosity is great, makes the heat-resisting resin layer can improve the mechanical properties and the heat resistance of glass fibre preimpregnation cloth greatly.

Further setting, the weaving density of the novel glass fiber prepreg cloth is 150-200 g/m 2.

So set up, the impact force can be cleared up fast to the fine preimpregnation cloth of glass of higher density of weaving, and is difficult for the breakage.

Further, the reinforcing rib material is carbon fiber or polyamide fiber.

So set up, carbon fiber and polyamide fiber homoenergetic improve the impact resistance of glass fiber prepreg cloth, make glass fiber prepreg cloth can bear higher impact force, be difficult for the breakage.

(III) advantageous effects

Compared with the prior art, the utility model provides a pair of novel fine preimpregnation cloth of glass possesses following beneficial effect:

1. the glass fiber prepreg is formed by weaving warp yarn bundles and weft yarn bundles, the warp yarn bundles and the weft yarn bundles comprise reinforcing ribs and fiber bundles wound on the reinforcing ribs, and the reinforcing ribs can improve the impact resistance of the glass fiber prepreg, so that the glass fiber prepreg can bear higher impact force, and the fatigue strength of the glass fiber prepreg is effectively improved;

2. the fiber bundle consists of glass fiber bundles and toughening fibers, and the toughening fibers can improve the impact toughness of the glass fiber bundles, so that the impact toughness and the fatigue strength of the glass fiber prepreg cloth are improved, and the glass fiber prepreg cloth is not easy to break;

3. the heat-resistant resin layer on the reinforcing ribs can be quickly impregnated into the fiber bundles, so that the overall rigidity of the glass fiber prepreg cloth is improved, and the fatigue strength of the glass fiber prepreg cloth is effectively improved.

Therefore, the utility model discloses effectively improved the fatigue strength and the impact toughness of the fine preimpregnation cloth of current glass, made fine preimpregnation cloth of glass can bear higher impact force, be difficult for breakage.

Drawings

FIG. 1 is a schematic view of the weaving structure of warp and weft bundles;

FIG. 2 is a schematic view showing a connection structure of reinforcing ribs and fiber bundles;

figure 3 is a cross-sectional view of a reinforcing bar.

Reference numerals: 1. a warp beam; 2. a weft yarn bundle; 3. reinforcing ribs; 31. a heat-resistant resin layer; 4. a fiber bundle; 41. a glass fiber bundle; 42. toughening fiber.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, 2 and 3, fig. 1 is a schematic view showing a weaving structure of warp and weft strands, fig. 2 is a schematic view showing a connection structure of reinforcing ribs and fiber bundles, and fig. 3 is a cross-sectional view of the reinforcing ribs.

The utility model provides a pair of novel fine preimpregnation cloth of glass, including warp beam 1 and weft bundle 2.

The glass fiber prepreg is formed by weaving warp bundles 1 and weft bundles 2 in a crisscross manner to form a plain weave; the warp wire harness 1 and the weft wire harness 2 both comprise reinforcing ribs 3 and fiber bundles 4 wound on the reinforcing ribs 3, and the reinforcing ribs 3 can improve the impact resistance of the glass fiber prepreg cloth, so that the glass fiber prepreg cloth can bear higher impact force, and the fatigue strength of the glass fiber prepreg cloth is effectively improved;

the surface of the reinforcing rib 3 is coated with the heat-resistant resin layer 31, and the heat-resistant resin layer 31 is quickly impregnated on the fiber bundle 4, so that the integral rigidity of the glass fiber prepreg cloth is improved, and the fatigue strength of the glass fiber prepreg cloth is effectively improved;

the fiber bundle 4 comprises a glass fiber bundle 41 and toughening fibers 42, the glass fiber bundle 41 is bonded with the toughening fibers 42, the glass fiber bundle 41 is formed by twisting a plurality of strands of glass fibers, and therefore the toughening fibers 42 can effectively improve the impact toughness of the glass fiber bundle 41, so that the impact toughness and fatigue strength of the glass fiber prepreg cloth are improved, and the glass fiber prepreg cloth is not easy to break.

The glass fiber is high-strength glass fiber which is characterized by high strength and high modulus; the single fiber tensile strength of the glass fiber is 2800MPa, which is about 25 percent higher than that of the alkali-free glass fiber; the elastic modulus of the glass fiber prepreg is 86000MPa, the glass fiber prepreg is higher than the strength of E-glass fiber, the integral rigidity of the glass fiber prepreg can be improved, and the glass fiber prepreg can bear higher impact force and is not easy to break.

The toughening fibers 42 are polytetrafluoroethylene fibers which have good mechanical toughness, can still maintain excellent mechanical properties within a wide temperature range of-196-260 ℃, and can improve the impact toughness of the glass fiber prepreg cloth, so that the glass fiber prepreg cloth is not easy to break.

The heat-resistant resin layer 31 is a novolac epoxy resin layer which has excellent mechanical property and high temperature resistance and high viscosity, so that the heat-resistant resin layer 31 can greatly improve the mechanical property and the heat resistance of the glass fiber prepreg cloth.

The weaving density of the novel glass fiber prepreg cloth is 150-200 g/m2, so that the impact force can be rapidly cleared up by the high weaving density, and the novel glass fiber prepreg cloth is not easy to break.

The reinforcing ribs 3 are made of carbon fibers or polyamide fibers, and the carbon fibers and the polyamide fibers can improve the impact resistance of the glass fiber prepreg cloth, so that the glass fiber prepreg cloth can bear higher impact force and is not easy to break.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The novel glass fiber prepreg cloth is characterized by comprising warp bundles (1) and weft bundles (2), wherein the glass fiber prepreg cloth is formed by crisscross weaving of the warp bundles (1) and the weft bundles (2) to form a plain weave;

the warp thread bundle (1) and the weft thread bundle (2) both comprise reinforcing ribs (3) and fiber bundles (4) wound on the reinforcing ribs (3), and heat-resistant resin layers (31) are arranged on the surfaces of the reinforcing ribs (3); the fiber bundle (4) comprises a glass fiber bundle (41) and toughening fibers (42), the toughening fibers (42) are fixedly connected with the glass fiber bundle (41), and the glass fiber bundle (41) is formed by twisting a plurality of strands of glass fibers.

2. The novel fiberglass prepreg of claim 1, wherein the glass fibers are high strength glass fibers.

3. The new fiberglass prepreg cloth according to claim 2, characterized in that the toughening fibers (42) are polytetrafluoroethylene fibers.

4. The novel fiberglass prepreg according to claim 3, characterized in that the heat-resistant resin layer (31) is a novolac epoxy resin layer.

5. The novel glass fiber prepreg according to claim 1, wherein the weaving density of the novel glass fiber prepreg is 150-200 g/m 2.

6. The novel glass fiber prepreg according to claim 1, characterized in that the material of the reinforcing ribs (3) is carbon fiber or polyamide fiber.