Double-sandwich wear-resistant glass fiber gridding cloth

Abstract

The utility model discloses double-sandwich wear-resistant glass fiber gridding cloth which comprises a gridding cloth body, the gridding cloth body comprises a first gridding cloth layer, sandwich layers and a second gridding cloth layer, the sandwich layers are arranged on the two sides of the first gridding cloth layer, and the second gridding cloth layer is arranged on the sides, away from the first gridding cloth layer, of the sandwich layers; the first gridding cloth layer is formed by interweaving glass fiber yarns; and the second gridding cloth layer is formed by interweaving flame-retardant wear-resistant yarns. Based on the double-sandwich wear-resistant glass fiber gridding cloth, the second gridding cloth layer is used as the outermost layer of the gridding cloth main body, so that the wear-resistant and cutting-resistant performance of the gridding cloth main body can be obviously improved, and the gridding cloth main body is endowed with certain flame-retardant performance; compared with common gridding cloth, the tensile strength and the modulus of the gridding cloth body can be improved by 50% or above, the bending strength and the modulus are improved by 70% or above, the impact strength is improved by 50% or above, and the mechanical property is remarkably improved.

Description

Technical Field

[0001] This utility model relates to a fiberglass mesh fabric, specifically a double-core wear-resistant fiberglass mesh fabric. Background Technology

[0002] Fiberglass mesh is made of woven fiberglass fabric as the base material, coated with a polymer anti-emulsion. It possesses excellent alkali resistance, flexibility, and high tensile strength in both warp and weft directions, and is widely used in building interior and exterior wall insulation, waterproofing, and crack resistance. However, with the development of the construction industry and other related industrial sectors, higher performance requirements have been placed on fiberglass mesh, and traditional fiberglass mesh has some limitations.

[0003] In building exterior wall insulation systems, it is desirable not only for the mesh fabric to enhance the wall's crack resistance, but also for it to have better abrasion resistance to resist erosion from external environmental factors and friction damage during construction. Therefore, it is necessary to provide a double-core abrasion-resistant fiberglass mesh fabric. Utility Model Content

[0004] The purpose of this invention is to provide a double-core wear-resistant fiberglass mesh fabric, which is designed to have higher impact strength and better wear resistance than ordinary fiberglass mesh fabric.

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: a double-core wear-resistant fiberglass mesh fabric, comprising: a mesh fabric body, the mesh fabric body including a first mesh fabric layer, a core layer and a second mesh fabric layer, the core layer being disposed on both sides of the first mesh fabric layer, and the second mesh fabric layer being disposed on the side of the core layer away from the first mesh fabric layer; the first mesh fabric layer is woven from fiberglass yarn; the second mesh fabric layer is woven from flame-retardant and wear-resistant yarn.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the first mesh fabric layer, the core layer and the second mesh fabric layer are composited by hot pressing.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the core layer is a continuous fiberglass mat.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the flame-retardant and wear-resistant yarn is a basalt-based composite yarn.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the basalt-based composite yarn includes a core yarn, a covering yarn, and a covering fiber; the core yarn is a 10tex continuous basalt filament; the covering yarn is an aramid yarn, which includes S-twist and Z-twist; and the covering fiber is a flame-retardant viscose fiber.

[0010] The beneficial effects of this utility model are as follows: Based on the double-core wear-resistant fiberglass mesh fabric of this utility model, the second mesh fabric layer formed by the interlacing of basalt-based composite yarns serves as the outermost layer of the mesh fabric body, which can significantly improve the wear resistance and cut resistance of the mesh fabric body and impart certain flame-retardant properties to the mesh fabric body; the mesh fabric body formed by hot-pressing the first mesh fabric layer, the core layer, and the second mesh fabric layer can improve tensile strength and modulus by more than 50%, flexural strength and modulus by more than 70%, and impact strength by more than 50% compared with ordinary mesh fabric, resulting in significantly improved mechanical properties. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the double-core wear-resistant fiberglass mesh fabric involved in this utility model;

[0012] In the diagram: 1-first mesh fabric layer, 2-core layer, 3-second mesh fabric layer. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0014] Combination Figure 1 This embodiment will be described in detail. A double-core wear-resistant fiberglass mesh fabric includes: a mesh fabric body, the mesh fabric body including a first mesh fabric layer, a core layer and a second mesh fabric layer, the core layer being disposed on both sides of the first mesh fabric layer, and the second mesh fabric layer being disposed on the side of the core layer away from the first mesh fabric layer; the first mesh fabric layer is woven from fiberglass yarn; the second mesh fabric layer is woven from flame-retardant and wear-resistant yarn.

[0015] Specifically, the surface of the first mesh fabric layer is coated with an alkali-resistant and waterproof material, which has the characteristics of stable structure, high strength, good alkali resistance, corrosion resistance, and crack resistance.

[0016] Furthermore, the first mesh fabric layer, the sandwich layer, and the second mesh fabric layer are composited by hot pressing.

[0017] Furthermore, the core layer is a continuous fiberglass felt.

[0018] Specifically, the areal density of the first mesh fabric layer is 400 g / m², and the areal density of the continuous fiberglass mat is 600 g / m², both formed by random spun and needle-punched continuous fibers. Polypropylene resin, additives, and compatibilizer MPP are uniformly mixed in a metered ratio and then extruded on a twin-screw extruder to form a polypropylene film matrix modified with compatibilizer MPP. After drying the first mesh fabric layer, the core layer, and the second mesh fabric layer at 105°C for 2 hours, they are layered together with the polypropylene film and melt-impregnated using a twin-belt press to obtain the mesh fabric body. The continuous fiberglass mat, as the core layer, improves the bending performance of the mesh fabric body, while the first and second mesh fabric layers improve the tensile modulus of the mesh fabric body. The first mesh layer is centrally located, with the core layer sandwiched between the first and second mesh layers. On one hand, the core layer restrains crack propagation in the first mesh layer, creating a synergistic effect on loads and increasing tensile and impact load capacity. This simultaneously enhances the rigidity and toughness of the mesh fabric. On the other hand, the second mesh layer, located on the outer side, allows its oriented fiber bundles to fully resist fiber tension during bending loads. The mesh fabric exhibits a fiber tension-dominated failure mode, significantly improving bending performance. Therefore, compared to ordinary mesh fabrics, the mesh fabric formed by hot-pressing the first mesh layer, core layer, and second mesh layer exhibits significantly improved mechanical properties, with tensile strength and modulus increased by over 50%, bending strength and modulus increased by over 70%, and impact strength increased by over 50%.

[0019] Furthermore, the flame-retardant and wear-resistant yarn is a basalt-based composite yarn.

[0020] Furthermore, the basalt-based composite yarn includes a core yarn, a covering yarn, and a covering fiber; the core yarn is a 10tex continuous basalt filament; the covering yarn is an aramid yarn, which includes S-twist and Z-twist; and the covering fiber is a flame-retardant viscose fiber.

[0021] Specifically, a coating spinning technique is employed, using 10tex basalt continuous yarn as the core yarn. Coated yarns with different twist directions are prepared by high-speed rotation of upper and lower hollow spindles. The coated yarns are S-twist and Z-twist aramid yarns. The hollow spindle speed is a constant 7000 r / min, and the twist is 600 twists / m. Friction spinning technology is then used to impart a layer of flame-retardant viscose fiber to the surface of the coated yarns. This basalt-based composite yarn exhibits a breaking strength of 197.66 N, a cut resistance index of 2.51, and a limiting oxygen index of 35.45%, exceeding 27%, classifying it as a flame-retardant yarn with significant flame retardant effect. Its rapid degradation temperature is 541.3℃, demonstrating excellent thermal stability. The second mesh layer formed by the interwoven basalt-based composite yarns serves as the outermost layer of the mesh fabric, significantly improving its abrasion resistance and cut resistance, while also imparting a certain degree of flame retardancy.

[0022] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A double-core wear-resistant fiberglass mesh fabric, characterized in that, include: The mesh fabric body includes a first mesh fabric layer (1), a core layer (2), and a second mesh fabric layer (3). The core layer (2) is disposed on both sides of the first mesh fabric layer (1), and the second mesh fabric layer (3) is disposed on the side of the core layer (2) away from the first mesh fabric layer (1). The first mesh fabric layer (1) is woven from glass fiber yarn. The second mesh fabric layer (3) is woven from flame-retardant and wear-resistant yarn.

2. The double-core wear-resistant fiberglass mesh fabric according to claim 1, characterized in that, The first mesh fabric layer (1), the core layer (2), and the second mesh fabric layer (3) are composited by hot pressing.

3. The double-core wear-resistant fiberglass mesh fabric according to claim 1, characterized in that, The core layer (2) is a continuous fiberglass felt.

4. The double-core wear-resistant fiberglass mesh fabric according to claim 1, characterized in that, The flame-retardant and wear-resistant yarn is a basalt-based composite yarn.

5. The double-core wear-resistant fiberglass mesh fabric according to claim 4, characterized in that, The basalt-based composite yarn comprises a core yarn, a covered yarn, and a covered fiber; the core yarn is a 10tex continuous basalt filament. The covered yarn is aramid yarn, which includes S-twist and Z-twist; the covered fiber is flame-retardant viscose fiber.

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