High-tear-resistance organic silicon leather

Abstract

The utility model provides high-tear-resistance organic silicon leather which comprises a first silica gel layer, a first film layer, a second silica gel layer, a second film layer and a third silica gel layer which are sequentially arranged and are sequentially adhered, and the first film layer and the second film layer are respectively one of PI films, carbon fibers or aramid paper. According to the high-tear-resistance organic silicon leather, the high-tear-resistance organic silicon leather can be provided.

Description

Technical Field

[0001] This utility model relates to the field of artificial leather technology, and in particular to a high tear-resistant silicone leather. Background Technology

[0002] A tensile-resistant silicone leather (CN119427868A) has been disclosed in the prior art. Its technical solution includes a tactile layer, a first silicone layer, a first substrate, a second silicone layer, and a second substrate arranged sequentially. The layers are bonded together by the adhesive properties of the first and second silicone layers. The first and second substrates are made of knitted fabric, woven fabric, or non-woven fabric. In some embodiments, a third silicone layer is added between the first silicone layer and the first substrate. The tensile strength of the silicone leather is improved through the multi-layer composite structure. The manufacturing process uses a process of coating liquid silicone with release paper, bonding the substrate, and setting the tactile layer after peeling off the release paper to achieve mass production. This silicone leather is mainly used in furniture sofa upholstery, automotive interiors, and mobile phone case films.

[0003] However, the aforementioned existing technologies still have the following technical problems: First, the intermediate substrate is only made of ordinary fabric materials, which have limited tear resistance (the tear resistance of conventional knitted fabric is ≤15N / mm), and the fabric is relatively thick, making it difficult to further reduce its thickness. This makes it difficult to meet the stringent requirements of high-end fields such as aerospace and electronic packaging for tear resistance, deformation resistance, and thinness. Long-term use can easily lead to substrate breakage, resulting in the overall failure of the leather. Second, the product has only one side of the outer surface as an organic silicone layer and the other side as a substrate layer. When the substrate layer is directly exposed or attached to the target object, it is easily corroded and aged by the external environment. Moreover, the surface properties of the two sides are inconsistent, which limits the adaptability of the product in multiple scenarios and cannot meet the usage requirements of high-end fields for double-sided protection and uniform stress distribution of materials. Summary of the Invention

[0004] The present invention aims to solve the above problems and provides a high tear-resistant silicone leather.

[0005] To achieve the above objectives, this utility model provides a high tear-resistant silicone leather, comprising a first silicone layer, a first film layer, a second silicone layer, a second film layer and a third silicone layer arranged sequentially, wherein the first silicone layer, the first film layer, the second silicone layer, the second film layer and the third silicone layer are bonded together in sequence, and the first film layer and the second film layer are respectively one of PI film, carbon fiber or aramid paper.

[0006] In this invention, compared to the silicone layer in the prior art, the silicone layer used in this invention is made with silicone as a base, retaining the inherent properties of silicone materials such as high and low temperature resistance, aging resistance, insulation, and environmental friendliness and non-toxicity. The selected PI film, carbon fiber, or aramid paper, compared to the fabric substrates such as knitted fabric, woven fabric, and non-woven fabric in the prior art, possesses superior tear resistance, higher dimensional stability, and is thinner and lighter. Simultaneously, the surface of these film / paper base materials is denser, resulting in better adhesion to the silicone layer and reducing the likelihood of adhesive penetration and bonding failure due to fiber gaps in the fabric substrate. Furthermore, PI film, carbon fiber, and aramid paper all possess excellent high and low temperature resistance and aging resistance, matching the performance characteristics of the silicone layer. This material provides synergistic weather protection, solving the problems of fabric substrates being susceptible to moisture, aging, and breakage during long-term use. Furthermore, it eliminates fiber fuzzing and shedding, resulting in superior surface smoothness. This meets the stringent requirements for surface texture and cleanliness in high-end applications such as precision wearables and electronic packaging. Its thin profile allows for overall product reduction, making it suitable for lightweight applications like aerospace. The symmetrical structure ensures uniform stress distribution, further enhancing structural stability and lifespan. The double-sided silicone layers provide bidirectional protection against impacts from different directions. The synergistic effect of the silicone layers and the high-tear-resistance reinforced substrate layer gives the product multiple properties, including high tear resistance and double-sided protection, resulting in significantly improved overall performance compared to existing technologies.

[0007] In the silicone leather involved in this utility model, optionally, the silicone components of the first silicone layer, the second silicone layer and the third silicone layer are silicone rubber.

[0008] Optionally, the silicone leather involved in this utility model may also include a first tactile layer disposed on the side of the first silicone layer away from the first film layer.

[0009] Optionally, the silicone leather involved in this invention may also include a second tactile layer disposed on the side of the third silicone layer away from the second film layer.

[0010] In the silicone leather involved in this utility model, optionally, the thickness of the PI film is 12.5 μm to 125 μm.

[0011] In the silicone leather of this invention, optionally, the thickness of the carbon fiber is 50 μm to 200 μm.

[0012] In the silicone leather involved in this utility model, optionally, the thickness of the aramid paper is 100μm to 200μm.

[0013] According to this invention, a high tear-resistant silicone leather can be provided. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the description are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural diagram of Example 1 of the high tear-resistant silicone leather of this utility model.

[0016] Figure 2 This is a structural diagram of Example 2 of the high tear-resistant silicone leather of this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this 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 this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Figure 1 This is a structural diagram of Example 1 of the high tear-resistant silicone leather of this utility model.

[0019] Reference Figure 1 This utility model provides a high tear-resistant silicone leather (hereinafter sometimes simply referred to as silicone leather).

[0020] The silicone leather may comprise a first silicone layer 1, a first film layer 2, a second silicone layer 3, a second film layer 4, and a third silicone layer 5, arranged sequentially. The first silicone layer 1, the first film layer 2, the second silicone layer 3, the second film layer 4, and the third silicone layer 5 are bonded together sequentially. Each silicone layer is made of silicone.

[0021] In some examples, the first film layer 2 and the second film layer 4 can be one of PI film (polyimide), carbon fiber, or aramid paper, respectively. Specifically, the first film layer 2 can be one of PI film, carbon fiber, or aramid paper. The second film layer 4 can be one of PI film, carbon fiber, or aramid paper. The materials of the first film layer 2 and the second film layer 4 can be the same.

[0022] In some examples, the first film layer 2 and the second film layer 4 may also be referred to as high tear-resistant reinforced substrate layers.

[0023] In some examples, the tear resistance of the silicone layer can be improved by increasing the molecular weight of the base adhesive. The tear resistance of the silicone layer can also be improved by increasing the viscosity of the silicone (e.g., by adding MQ silicone resin for reinforcement).

[0024] In some examples, the silicone layers (first silicone layer 1, second silicone layer 3, and third silicone layer 5) can be made into foamed silicone layers through a foaming process. In this case, although the tear resistance is somewhat reduced after foaming, it can at the same time improve the elasticity, cushioning and shock absorption properties of the silicone leather, making it suitable for use in scenarios involving frequent bending and impact, and meeting the needs of precision wearables, medical devices and other fields for material softness and fit.

[0025] In some examples, the silicone layers can be manufactured as a first foamed silicone layer, a second foamed silicone layer, and a third foamed silicone layer using a localized foaming process. These three foamed silicone layers can also be referred to as a first locally foamed silicone layer, a second locally foamed silicone layer, and a third locally foamed silicone layer. This allows for the retention of the advantages of all the aforementioned foamed silicone layers without significantly reducing tear resistance.

[0026] In some examples, the silicone components of the first silicone layer 1, the second silicone layer 3, and the third silicone layer 5 may be silicone rubber. In some examples, the silicone components of the first silicone layer 1, the second silicone layer 3, and the third silicone layer 5 may also be silicone resin. In some examples, the silicone components of the first silicone layer 1, the second silicone layer 3, and the third silicone layer 5 may also be a mixture of silicone rubber and silicone resin.

[0027] The thickness of the first silicone layer 1, the second silicone layer 3, and the third silicone layer 5 can be adjusted according to the application requirements. For example, the first silicone layer 1, the second silicone layer 3, and the third silicone layer 5 can be configured as a single layer or a multi-layer structure.

[0028] This novel high-tear-resistant silicone leather, with its comprehensive advantages such as high tear resistance, high and low temperature resistance, and double-sided protection, can be widely used in high-end fields such as aerospace, medical devices, electronic packaging, and precision wearables.

[0029] In some examples, adhesive materials such as silicone adhesive can be further coated on both sides of the first film layer 2 and the second film layer 4. This further enhances the adhesion between the first film layer 2 and the second film layer 4 and each silicone layer.

[0030] Figure 2 This is a structural diagram of Example 2 of the high tear-resistant silicone leather of this utility model.

[0031] Reference Figure 2 In some examples, the high tear-resistant silicone leather may also include a first tactile layer 6 disposed on the side of the first silicone layer 1 away from the first film layer 2.

[0032] In some examples, the high tear-resistant silicone leather may also include a second tactile layer 7 disposed on the side of the third silicone layer 5 away from the second film layer 4.

[0033] In some examples, the first tactile layer 6 and the second tactile layer 7 can be silicone elastic layers with a matte, skin-friendly texture.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high tear-resistant silicone leather, characterized in that, It includes a first silicone layer, a first film layer, a second silicone layer, a second film layer and a third silicone layer arranged in sequence, wherein the first silicone layer, the first film layer, the second silicone layer, the second film layer and the third silicone layer are bonded together in sequence, and the first film layer and the second film layer are respectively one of PI film, carbon fiber or aramid paper.

2. The high tear-resistant silicone leather according to claim 1, characterized in that, The silicone components of the first silicone layer, the second silicone layer, and the third silicone layer are silicone rubber.

3. The high tear-resistant silicone leather according to claim 1, characterized in that, It also includes a first tactile layer disposed on the side of the first silicone layer away from the first film layer.

4. The high tear-resistant silicone leather according to claim 1, characterized in that, It also includes a second tactile layer disposed on the side of the third silicone layer away from the second film layer.

5. The high tear-resistant silicone leather according to claim 1, characterized in that, The thickness of the PI film is 12.5 μm to 125 μm.

6. The high tear-resistant silicone leather according to claim 1, characterized in that, The thickness of the carbon fiber is 50 μm to 200 μm.

7. The high tear-resistant silicone leather according to claim 1, characterized in that, The thickness of the aramid paper is 100 μm to 200 μm.

Images