Quick-penetration type high-modulus triaxial fabric

Abstract

The utility model relates to the technical field of glass fiber fabrics, in particular to a quick-penetration type high-modulus triaxial fabric, which comprises warp layers arranged in parallel in the 0-degree direction, and weft layers arranged in parallel in the 0-degree direction, the first weft yarn layer and the warp yarn layer are stacked in parallel and are arranged in parallel in the first angle direction; the second weft yarn layer and the first weft yarn layer are stacked in parallel, and are arranged in parallel in a second angle direction; wherein the warp yarn layer, the first weft yarn layer and the second weft yarn layer are woven into a whole through polyester yarns in a warp flat weaving mode, the first angle is one of positive 45 degrees and negative 45 degrees, and the second angle is the other one of positive 45 degrees and negative 45 degrees. The angles of the first weft yarn layer and the second weft yarn layer are set, so that the included angle between the first weft yarn layer and the warp yarn layer and the included angle between the second weft yarn layer and the warp yarn layer are the same, the number of fabric pores is increased by increasing the number of stitches, and then the infiltration speed is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of glass fiber fabrics, in particular to a fast-transmitting high-modulus tri-axial fabric. Background Art

[0002] In the wind energy industry, glass fiber is mainly concentrated in the manufacture of wind turbine blades. Wind turbine blades are the core components of wind turbines, responsible for converting wind energy into mechanical energy and transmitting it to the generator to generate electricity. With the development of larger and lighter wind turbine blades, how to reduce the weight of the fabric and increase the penetration speed of the fabric becomes increasingly important.

[0003] In the prior art, in order to enhance the permeability of fabrics, it is often reflected in the fabric manufacturing process, such as pre-treating the glass fiber to remove surface oil and impurities to ensure better penetration of the resin; in the selection of resin, the prior art also adds a wetting agent or surfactant to the resin to improve its permeability; when the resin is infused, the vacuum infusion method is used to ensure that the resin is evenly distributed throughout the fabric. However, when the above-mentioned process has been popularized, how to further improve the permeability of the fabric has become a technical problem that needs to be solved urgently. Utility Model Content

[0004] In view of at least one of the above technical problems, the utility model provides a fast-permeable high-modulus tri-axial fabric, which adopts structural improvement to improve the permeability of the fabric.

[0005] According to a first aspect of the utility model, there is provided a fast-transmitting high modulus triaxial fabric, comprising:

[0006] A warp yarn layer, wherein the warp yarn layer is arranged in parallel in a 0° direction;

[0007] A first weft yarn layer is stacked parallel to the warp yarn layer and arranged in parallel at a first angle;

[0008] A second weft yarn layer is stacked in parallel with the first weft yarn layer and arranged in parallel at a second angle;

[0009] The warp yarn layer, the first weft yarn layer and the second weft yarn layer are woven into a whole by polyester yarn in a warp-plain weaving manner, the first angle is one of positive 45 degrees and negative 45 degrees, the second angle is the other of positive 45 degrees and negative 45 degrees, and the stitch density of the polyester yarn is not less than 10 ends / inch.

[0010] In some embodiments of the present invention, the mass per unit area of ​​the fast-transmitting high modulus tri-axial fabric is 885±3%g, and the mass of the warp yarn layer in the fast-transmitting high modulus tri-axial fabric accounts for 53%-54%.

[0011] In some embodiments of the present invention, the modulus of the glass fiber material of the fast-transmitting high modulus tri-axial fabric is not less than 89 GPa.

[0012] In some embodiments of the present invention, the raw material of the warp yarn layer is glass fiber of TM+468GS-1200 specification.

[0013] In some embodiments of the present invention, the mass per unit area of ​​the warp yarn layer is 473±3%g.

[0014] In some embodiments of the present invention, the raw materials of the first weft yarn layer and the second weft yarn layer are glass fibers of TM+468GS-300 specification.

[0015] In some embodiments of the present invention, the mass per unit area of ​​the first weft yarn layer and the second weft yarn layer are both 201±3%g.

[0016] In some embodiments of the present invention, the linear density of the polyester yarn is 75D.

[0017] In some embodiments of the present invention, the mass per unit area of ​​the polyester yarn is 12g.

[0018] In some embodiments of the present invention, the stitch length of the polyester yarn is 2.7-3.3 mm.

[0019] The beneficial effects of the utility model are as follows: the utility model sets the angle of the first weft yarn layer and the second weft yarn layer so that the first weft yarn layer and the second weft yarn layer are in a vertical state, and arranges the warp yarn layer in the 0° direction so that the angle between the first weft yarn layer and the warp yarn layer and the angle between the second weft yarn layer and the warp yarn layer are the same, and increases the number of fabric pores by increasing the number of stitches, thereby achieving an increase in the penetration speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1This is a schematic structural diagram of a fast-transmitting high-modulus tri-axial fabric in an embodiment of the utility model;

[0022] Figure 2 This is another structural schematic diagram of the fast-transmitting high-modulus tri-axial fabric in the embodiment of the utility model. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] like Figure 1 to Figure 2 The fast-transmitting high modulus triaxial fabric shown in the figure comprises a warp yarn layer 1, a first weft yarn layer 2 and a second weft yarn layer 3, as shown in FIG. Figure 1 As shown in , the warp yarn layer 1 is arranged in parallel in the 0° direction; the first weft yarn layer 2 is arranged in parallel with the warp yarn layer 1, and is arranged in parallel in the first angle direction; the second weft yarn layer 3 is arranged in parallel with the first weft yarn layer 2, and is arranged in parallel in the second angle direction; wherein the warp yarn layer 1, the first weft yarn layer 2 and the second weft yarn layer 3 are woven into a whole by polyester yarn in a warp plain weaving manner, the first angle is one of positive 45 degrees and negative 45 degrees, and the second angle is the other of positive 45 degrees and negative 45 degrees. That is, Figure 1 As shown in , if the first weft yarn layer 2 is positive 45 degrees, the second weft yarn layer 3 is negative 45 degrees, such as Figure 2As shown in , if the first weft yarn layer 2 is minus 45 degrees, the second weft yarn layer 3 is plus 45 degrees. The stitch density of polyester yarn is not less than 10ends / inch. It should be pointed out here that 10ends / inch means that there are 10 fibers per inch of fabric width. In addition, it should be pointed out here that warp plain weaving means that the warp yarns pass through the fabric of the loom in a parallel manner to form the main structure of the fabric, that is, each warp yarn passes through the entire width of the fabric and is parallel to the length direction of the fabric.

[0027] In the above embodiment, the first weft yarn layer 2 and the second weft yarn layer 3 are arranged at an angle such that the first weft yarn layer 2 and the second weft yarn layer 3 are in a vertical state, and the warp yarn layer 1 is arranged in the 0° direction such that the angle between the first weft yarn layer 2 and the warp yarn layer 1 and the angle between the second weft yarn layer 3 and the warp yarn layer 1 are the same. The number of fabric pores is increased by increasing the number of stitches, thereby achieving an increase in the penetration speed.

[0028] In the following part of the embodiment of the utility model, the specific arrangement of the warp yarn layer 1, the first weft yarn layer 2 and the second weft yarn layer 3 is introduced in detail. The mass per unit area of ​​the fast-transmitting high modulus tri-axial fabric is 885±3%g, and the mass of the warp yarn layer 1 in the fast-transmitting high modulus tri-axial fabric accounts for 53%-54%. The modulus of the glass fiber material of the fast-transmitting high modulus tri-axial fabric is not less than 89GPa. The raw material of the warp yarn layer 1 is glass fiber of TM+468GS-1200 specification. The mass per unit area of ​​the warp yarn layer 1 is 473±3%g. The mass per unit area here refers to the mass per square meter. According to actual calculations, the modulus of the above-mentioned fabric at 0° tensile performance and 0° compression performance can reach 30GPa-32Gpa. Through the setting of high modulus glass fiber material, the fabric has excellent strength, stiffness and fatigue resistance.

[0029] In the embodiment of the utility model, the raw material of the first weft yarn layer 2 and the second weft yarn layer 3 is glass fiber of TM+468GS-300 specification. The unit area mass of the first weft yarn layer 2 and the second weft yarn layer 3 is 201±3%g. By setting the material specifications and gram weight of the first weft yarn layer 2 and the second weft yarn layer 3 to the same structural form, on the one hand, it is convenient for processing and manufacturing, and on the other hand, it is also conducive to improving the stability of the fabric.

[0030] In some embodiments of the present invention, the linear density of the polyester yarn is 75D. The mass per unit area of ​​the polyester yarn is 12g. The stitch length of the polyester yarn is 2.7-3.3mm. It should be pointed out here that 75D means that the weight of the silk thread per 9000 meters is 75g, the gram weight of the polyester yarn is 12g, which means that the mass per square meter is 12g, and the stitch length refers to the length of each stitch. In the embodiments of the present invention, the penetration speed is improved by increasing the number of stitches of the fabric and thus increasing the number of pores. Please refer to Table 1 below, which is a comparison table of the flow rate time required for the fast-permeable high modulus tri-axial fabric in this application and other fabrics of the same type.

[0031]

[0032] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A fast-transmitting high modulus triaxial fabric, characterized in that: include: A warp yarn layer, wherein the warp yarn layer is arranged in parallel in a 0° direction; A first weft yarn layer is stacked parallel to the warp yarn layer and arranged in parallel at a first angle; A second weft yarn layer is stacked in parallel with the first weft yarn layer and arranged in parallel at a second angle; The warp yarn layer, the first weft yarn layer and the second weft yarn layer are woven into a whole by polyester yarn in a warp-plain weaving manner, the first angle is one of positive 45 degrees and negative 45 degrees, the second angle is the other of positive 45 degrees and negative 45 degrees, and the stitch density of the polyester yarn is not less than 10 ends / inch.

2. The fast-transmitting high modulus triaxial fabric according to claim 1, characterized in that: The mass per unit area of ​​the fast-transmitting high modulus tri-axial fabric is 885±3%g, and the mass of the warp yarn layer in the fast-transmitting high modulus tri-axial fabric accounts for 53%-54%.

3. The fast-transmitting high modulus triaxial fabric according to claim 1, characterized in that: The modulus of the glass fiber material of the fast-transmitting high modulus tri-axial fabric is not less than 89 GPa.

4. The fast-transmitting high modulus triaxial fabric according to claim 1, characterized in that: The raw material of the warp yarn layer is glass fiber with the specification of TM+468GS-1200.

5. The fast-transmitting high modulus triaxial fabric according to claim 1, characterized in that: The mass per unit area of ​​the warp yarn layer is 473±3% g.

6. The fast-transmitting high modulus triaxial fabric according to claim 1, characterized in that: The raw materials of the first weft yarn layer and the second weft yarn layer are glass fibers of TM+468GS-300 specification.

7. The fast-transmitting high modulus triaxial fabric according to claim 1, characterized in that: The mass per unit area of ​​the first weft yarn layer and the second weft yarn layer is both 201±3%g.

8. The fast-transmitting high modulus triaxial fabric according to claim 1, characterized in that: The linear density of the polyester yarn is 75D.

9. The fast-transmitting high modulus triaxial fabric according to claim 1, characterized in that: The mass per unit area of ​​the polyester yarn is 12g.

10. The fast-transmitting high modulus triaxial fabric according to claim 1, characterized in that: The stitch length of the polyester yarn is 2.7-3.3 mm.

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