A tear resistant glass fiber coated mat

Abstract

This utility model discloses a tear-resistant glass fiber coated felt, relating to the field of coated felt technology. It includes a hardening layer, an intermediate layer fixedly connected to the bottom of the hardening layer, and a connecting layer fixedly connected to the bottom of the intermediate layer. The hardening layer, intermediate layer, and connecting layer constitute the body of the coated felt. It is composed of fibers, and the gaps inside the hardening felt are filled with hydraulic cementitious material powder. The hardening layer, intermediate layer, and connecting layer form a composite structure. This tear-resistant glass fiber coated felt, through a multi-layer composite structure design, consists of a hardening layer, an intermediate layer, and a connecting layer. The outermost hardening layer adopts a double-grid reinforcement structure, and the outer reinforcement layer forms a surface protective net, which can effectively disperse stress and prevent local cracking. The interior of the hardening felt is filled with hydraulic cementitious material powder, which can self-repair micro-cracks upon contact with water. The first structural layer has built-in grid-like reinforcing fibers, which can prevent crack propagation and significantly improve tear resistance.

Description

Technical Field

[0001] This utility model relates to the field of coated felt technology, specifically to a tear-resistant glass fiber coated felt. Background Technology

[0002] Fiberglass coated felt is a high-performance composite material made by coating an organic polymer material onto a fiberglass substrate through a special process. It combines the mechanical properties of fiberglass with the functionality of a coating. It is often used in conjunction with soft ceramics. The coated felt can enhance the stability of the substrate, while the soft ceramics cover the surface, forming a composite system that combines functionality and decoration.

[0003] Chinese patent (publication number: CN209339492U) discloses a fiberglass coated felt, comprising a bottom layer, the top end of which is fixedly connected to the bottom end of a first adhesive block, the top end of which is fixedly connected to the bottom end of a sound-absorbing board layer, the top end of which is fixedly connected to the bottom end of a second adhesive block, the top end of which is fixedly connected to the bottom end of a sound-insulating board layer, the top end of which is fixedly bonded to the bottom end of a third adhesive block, and the top end of which is fixedly bonded to the bottom end of a waterproof layer. The activated carbon fiber layer effectively absorbs odors from the air. The honeycomb holes, sound-absorbing board layer, and sound-insulating board layer work together to maximize sound insulation and avoid disturbing others. Several burrs on the bottom layer facilitate the bonding of the coated felt with other boards.

[0004] Existing glass fiber coated mats have insufficient impact resistance and temperature change resistance, are prone to penetrating cracks, have low interfacial bonding strength in traditional multilayer materials, pose a risk of interlayer delamination, and have a single reinforcement direction. Utility Model Content

[0005] The purpose of this invention is to provide a tear-resistant glass fiber coated felt to solve the problems in the background technology, such as insufficient impact resistance and temperature change resistance, easy generation of through cracks, low interfacial bonding strength of traditional multilayer materials, risk of interlayer delamination, and single reinforcement direction of glass fiber reinforced materials.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a tear-resistant glass fiber coated felt, comprising a hardened layer, an intermediate layer fixedly connected to the bottom of the hardened layer, and a connecting layer fixedly connected to the bottom of the intermediate layer, wherein the hardened layer, the intermediate layer and the connecting layer constitute the coated felt body;

[0007] The hardening layer consists of an outer reinforcement layer, a hardening felt, and a first structural layer. The hardening felt is made of fibers, and the gaps inside the hardening felt are filled with hydraulic cementitious material powder. The hardening layer, the intermediate layer, and the connecting layer form a composite structure.

[0008] Preferably, the outer reinforcement layer has a mesh structure, and the hardening felt is located between the outer reinforcement layer and the first structural layer. The first structural layer is composed of fibers, and a first reinforcing fiber with a mesh distribution is fixedly connected inside the first structural layer.

[0009] Preferably, the intermediate layer is composed of a first insulating layer, a fiberglass layer, and a second insulating layer, wherein the fiberglass layer is located between the first and second insulating layers, and the first and second insulating layers are made of waterproof materials.

[0010] Preferably, the glass fiber layer is composed of longitudinally laid glass fibers, and transversely laid plastic fibers are added inside the glass fiber layer. The glass fiber accounts for 85% to 95%, and the plastic fiber accounts for 5% to 15%.

[0011] Preferably, the connecting layer consists of a second structural layer and an inner reinforcing layer, wherein the inner reinforcing layer has a mesh structure, and the second structural layer and the intermediate layer are interconnected.

[0012] Preferably, the inner reinforcement layer and the outer reinforcement layer constitute the outer layer of the coated felt body, and the inner reinforcement layer is fixedly connected to the wall or the outer side of the soft porcelain, while the outer reinforcement layer is in direct contact with the outside.

[0013] Preferably, the second structural layer has a mesh-like distribution of second reinforcing fibers inside, and the second structural layer has uniformly distributed through holes inside.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This tear-resistant glass fiber coated felt features a multi-layer composite structure consisting of a hardening layer, an intermediate layer, and a connecting layer. The outermost hardening layer employs a double-grid reinforcement structure, forming a surface protective net that effectively disperses stress and prevents localized cracking. The hardening felt is filled with hydraulic cementitious material powder, which can self-repair micro-cracks upon contact with water. The first structural layer incorporates grid-like reinforcing fibers, which can prevent crack propagation and significantly improve tear resistance.

[0016] The intermediate layer adopts a composite design of longitudinally laid glass fiber and transverse plastic fiber, which ensures both longitudinal tensile strength and enhances transverse toughness. At the same time, it is tightly wrapped by a double-layer waterproof isolation layer to effectively block water penetration and protect the internal structure. The connecting layer, through the through-hole design and the mesh inner reinforcement layer, allows the adhesive to fully penetrate and form a mechanical bond, which greatly improves the bonding strength. The built-in second reinforcing fiber mesh further strengthens the connecting layer and prevents tearing and damage during construction or use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the external reinforcement layer structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the glass fiber layer structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the second structural layer of this utility model.

[0023] In the figure: 1. Hardened layer; 2. Intermediate layer; 3. Connecting layer; 4. Outer reinforcing layer; 5. Hardened felt; 6. First structural layer; 7. First reinforcing fiber; 8. First isolation layer; 9. Glass fiber layer; 10. Second isolation layer; 11. Second structural layer; 12. Inner reinforcing layer; 13. Through hole; 14. Second reinforcing fiber. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figure 1 - Figure 6This utility model provides the following technical solution: a tear-resistant glass fiber coated felt, comprising a hardened layer 1, an intermediate layer 2 fixedly connected to the bottom of the hardened layer 1, and a connecting layer 3 fixedly connected to the bottom of the intermediate layer 2, the hardened layer 1, the intermediate layer 2, and the connecting layer 3 constituting the coated felt body; the hardened layer 1 is composed of an outer reinforcing layer 4, a hardened felt 5, and a first structural layer 6, the hardened felt 5 being made of fiber, and the gaps inside the hardened felt 5 being filled with hydraulic cementitious material powder, and the hardened layer 1, the intermediate layer 2, and the connecting layer 3 forming a composite structure; the outer reinforcing layer 4 is a mesh structure, and the hardened felt 5 is located between the outer reinforcing layer 4 and the first structural layer 6, the first structural layer 6 being made of fiber, and the first reinforcing fiber 7 being fixedly connected in a mesh-like distribution inside the first structural layer 6; the intermediate layer 2 is composed of a first insulating layer 8, a glass fiber layer 9, and a second insulating layer 10, the glass fiber... The fiber layer 9 is located between the first isolation layer 8 and the second isolation layer 10, and the first isolation layer 8 and the second isolation layer 10 are made of waterproof material; the glass fiber layer 9 is composed of longitudinally laid glass fibers, and transversely laid plastic fibers are added inside the glass fiber layer 9. The glass fiber accounts for 85% to 95%, and the plastic fiber accounts for 5% to 15%; the connecting layer 3 is composed of the second structural layer 11 and the inner reinforcing layer 12. The inner reinforcing layer 12 has a mesh structure, and the second structural layer 11 and the intermediate layer 2 are connected to each other; the inner reinforcing layer 12 and the outer reinforcing layer 4 constitute the outer layer of the coated felt body, and the inner reinforcing layer 12 is fixedly connected to the wall or the outer side of the soft porcelain, and the outer reinforcing layer 4 is in direct contact with the outside; the second structural layer 11 has a mesh-like distribution of second reinforcing fibers 14 inside, and the second structural layer 11 has uniformly distributed through holes 13 inside.

[0026] The fiberglass coated mat is a multi-layered composite structure consisting of a hardened layer 1, an intermediate layer 2, and a connecting layer 3. Through the synergistic effect of each functional layer, it can cope with different external stresses and environmental factors, improve tear resistance, structural stability, and water resistance, and has a strong interfacial bonding ability.

[0027] The outermost hardened layer 1 resists direct external physical impact, friction, and harsh weather erosion. It consists of an outer reinforcing layer 4, a hardened felt 5, and a first structural layer 6. The outer reinforcing layer 4 uses a mesh structure to form a protective net on the surface of the hardened layer 1. When external forces are applied to the surface of the coated felt, this can disperse concentrated stress and prevent excessive stress concentration from causing local cracking.

[0028] The hardening felt 5 is made of fibers, and its internal gaps are pre-filled with hydraulic cementitious material powder. The fiber matrix of the hardening felt 5 provides basic support and toughness. When the powder partially dissolves or reacts with water due to micro-cracks or environmental moisture on the surface of the felt, the hydraulic cementitious material can harden and crystallize at the cracks or in the fiber gaps, achieving self-repair or local reinforcement effects, timely sealing of damage paths, and improving the durability and corrosion resistance of the coating.

[0029] The first structural layer 6 is also composed of dense fibers, which serve as the inner skeleton of the hardened layer. The first reinforcing fibers 7 distributed in a mesh pattern inside enhance the tear resistance. The first reinforcing fibers 7 are arranged in a mesh pattern, which can effectively prevent the expansion of the initial crack. When local stress attempts to tear the first structural layer 6, the first reinforcing fibers 7, like a steel mesh, bear and redistribute the tensile force, limiting the expansion of the crack to the smallest mesh unit, thereby greatly improving the overall tear resistance and dimensional stability of the hardened layer.

[0030] The intermediate layer 2 is located between the hardened layer 1 and the connecting layer 3, providing tensile strength and rigidity, isolating moisture penetration, and buffering stress transmission between layers. The intermediate layer 2 is a three-layer composite structure consisting of the first isolation layer 8, the glass fiber layer 9, and the second isolation layer 10.

[0031] The glass fiber layer 9 is composed of a large number of longitudinally laid glass fibers. The fibers are mainly arranged along the length of the coating felt, supporting the entire coating felt against the huge tensile stress caused by overall stretching, bending or hanging, and preventing the overall structure from deforming or breaking.

[0032] The transversely laid plastic fibers increase the transverse strength of the glass fiber layer. Its good plasticity and toughness can absorb the impact energy, shear stress and small deformations transmitted between layers from the transverse direction, effectively suppressing the risk of cracking of the glass fiber main yarn under transverse load, and significantly improving the toughness, impact resistance and delamination tear resistance of the entire intermediate layer.

[0033] The first isolation layer 8 and the second isolation layer 10, which are wrapped around the outside of the fiberglass layer 9, are both made of waterproof material. They tightly seal the highly hygroscopic fiberglass layer in the core, preventing external moisture, water or water vapor from penetrating further into the interior through the hardened layer 1. At the same time, they prevent moisture from the base layer from eroding the intermediate layer through the connecting layer 3. This protects the fiberglass and internal structure from moisture erosion that could lead to a decrease in strength, mold growth or internal expansion, ensuring the structural integrity and performance stability of the coated felt during long-term use.

[0034] The innermost connecting layer 3 is responsible for bonding and fixing to the building base or soft ceramic substrate, and ensuring the uniformity and breathability of the bonding. The connecting layer 3 consists of the second structural layer 11 and the inner reinforcing layer 12.

[0035] The second structural layer 11 is filled with a matrix fiber material, forming the basic structure for connection. It has uniformly distributed through holes 13 inside. When the coated felt is bonded to the base surface using adhesive, mortar or specific adhesive material, the through holes 13 allow some adhesive to penetrate into the interior of the second structural layer, and even reach the interface of the intermediate layer 2, which enhances the mechanical interlocking force of the bond and improves the shear strength and peel strength of the adhesive layer.

[0036] The inner reinforcing layer 12 also adopts a mesh structure, located on the innermost side of the coated felt and in direct contact with the adhesive and the substrate. This inner reinforcing layer 12 is embedded in the concrete, which greatly enhances the overall tensile and shear resistance of the bonding layer and improves the structural strength of the bond between the coated felt and the substrate. The mesh structure of the inner reinforcing layer 12 has excellent porosity, providing sufficient penetration and anchoring space for the adhesive, significantly increasing the effective bonding area and mechanical interlocking effect, and ensuring the long-term stability of the bonding alloy.

[0037] The second reinforcing fibers 14, arranged in a grid pattern inside the second structural layer 11, further strengthen the structure of the connecting layer. The second grid formed by the second reinforcing fibers 14 effectively enhances the tear resistance of the second structural layer itself, especially during construction, local impact, or local peeling stress, preventing the connecting layer from tearing and breaking, thereby ensuring the integrity of the connection with the base surface.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tear-resistant glass fiber coated felt, comprising a hardened layer (1), an intermediate layer (2) fixedly connected to the bottom of the hardened layer (1), and a connecting layer (3) fixedly connected to the bottom of the intermediate layer (2), wherein the hardened layer (1), the intermediate layer (2) and the connecting layer (3) constitute the coated felt body; Its features are: The hardening layer (1) is composed of an outer reinforcing layer (4), a hardening felt (5) and a first structural layer (6). The hardening felt (5) is made of fiber, and the gaps inside the hardening felt (5) are filled with hydraulic cementitious material powder. The hardening layer (1), the intermediate layer (2) and the connecting layer (3) form a composite structure.

2. The tear-resistant glass fiber coated felt according to claim 1, characterized in that: The outer reinforcement layer (4) has a mesh structure, and the hardening felt (5) is located between the outer reinforcement layer (4) and the first structural layer (6). The first structural layer (6) is made of fibers, and the first reinforcing fibers (7) are fixedly connected in a mesh pattern inside the first structural layer (6).

3. The tear-resistant glass fiber coated felt according to claim 2, characterized in that: The intermediate layer (2) is composed of a first isolation layer (8), a glass fiber layer (9) and a second isolation layer (10). The glass fiber layer (9) is located between the first isolation layer (8) and the second isolation layer (10), and the first isolation layer (8) and the second isolation layer (10) are made of waterproof material.

4. The tear-resistant glass fiber coated felt according to claim 3, characterized in that: The glass fiber layer (9) is composed of longitudinally laid glass fibers, and transversely laid plastic fibers are added inside the glass fiber layer (9).

5. The tear-resistant glass fiber coated felt according to claim 1, characterized in that: The connecting layer (3) is composed of a second structural layer (11) and an inner reinforcing layer (12). The inner reinforcing layer (12) is a mesh structure. The second structural layer (11) and the intermediate layer (2) are interconnected.

6. The tear-resistant glass fiber coated felt according to claim 5, characterized in that: The inner reinforcement layer (12) and the outer reinforcement layer (4) constitute the outer layer of the coating felt body, and the inner reinforcement layer (12) is fixedly connected to the wall or the outer side of the soft porcelain, while the outer reinforcement layer (4) is in direct contact with the outside.

7. The tear-resistant glass fiber coated felt according to claim 6, characterized in that: The second structural layer (11) has a mesh-like distribution of second reinforcing fibers (14) inside, and the second structural layer (11) has uniformly distributed through holes (13) inside.

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