Fiber-reinforced net-clamping cloth structure

Abstract

The utility model relates to the technical field of textile composite materials, in particular to a fiber-reinforced netted cloth structure. The fiber-reinforced netted cloth structure comprises a first TPU (thermoplastic polyurethane) layer, a first primer layer, a reinforcing layer, a second primer layer and a second TPU layer which are sequentially arranged from top to bottom, the TPU layer is connected with the primer layers in a curtain coating or hot fitting manner, and the primer layers are connected to the two sides of the reinforcing layer in a dip-coating manner; the reinforcing layer is a warp yarn and weft yarn plain weave fabric layer, and the warp yarn and the weft yarn are both yarns in the following configuration sequence: ultra-high molecular weight polyethylene filaments A, wrap yarns C, doubling and twisting yarns D, polyester filaments B, doubling and twisting yarns D, wrap yarns C and ultra-high molecular weight polyethylene filaments A; and the first primer layer and the second primer layer are three-dimensional crimped polyester staple fiber composite primer layers. According to the fiber-reinforced netted sandwich cloth structure, the problem of insufficient adhesion strength of a coating in the prior art is well solved while the overall stretching and tearing properties of the netted sandwich cloth are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to textile composite material technical field especially, it relates to a kind of fiber reinforced net sandwich cloth structure. BACKGROUND

[0002] Fiber reinforced net sandwich cloth is widely used in various industrial cloths and special protective materials, with excellent strength, wear resistance and protective performance. However, the traditional net sandwich cloth has deficiencies in coating adhesion strength, and the phenomenon of coating peeling or falling off easily occurs, affecting the service life and reliability of the material.

[0003] Currently, the traditional net sandwich cloth generally uses double-component polyurethane primer, which has low peeling strength between ultra-high molecular weight polyethylene fibers and high peeling strength between polyester. Therefore, using single ultra-high molecular weight polyethylene fabric as the middle layer, the prepared net sandwich cloth material has insufficient peeling strength, and when improving the ultra-high molecular weight polyethylene and polyester into a hybrid fabric and then compounding with the double-component polyurethane primer, the peeling strength at the junction of the two yarns will also have a significant peeling strength cliff, which is not durable and still difficult to meet the use requirements.

[0004] Therefore, how to improve the adhesion strength of the net sandwich cloth primer coating while maintaining the strength and durability of the material is a technical problem that needs to be solved at present. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a kind of fiber reinforced net sandwich cloth structure, while improving the overall tensile, tear performance of net sandwich cloth, overcome the defects that the coating adhesion strength of prior art is insufficient, and the durability is poor, solve the problems existing in prior art.

[0006] In order to achieve the above purpose, the technical scheme adopted by the utility model is:

[0007] A kind of fiber reinforced net sandwich cloth structure, including first TPU layer, first primer layer, reinforcing layer, second primer layer, second TPU layer arranged in sequence from top to bottom;TPU layer and primer layer are connected by casting or hot bonding, and the primer layer is connected to the two sides of the reinforcing layer by immersion coating;

[0008] The reinforcing layer is a plain weave fabric layer of warp yarn and weft yarn, and the warp yarn and weft yarn are yarns arranged in the following order: ultra-high molecular weight polyethylene filament A-coated yarn C-cabled yarn D-polyester filament B-cabled yarn D-coated yarn C-ultra-high molecular weight polyethylene filament A.

[0009] The first and second primer layers are both three-dimensional crimped polyester staple fiber composite primer layers.

[0010] Further, the primer layer is connected to the two sides of the reinforcing layer by immersion coating through an immersion coating device.

[0011] Further, the wrap yarn C is a wrap yarn prepared by taking an ultra-high molecular weight polyethylene filament as a core yarn and taking a polyester filament as a surface yarn, and the twist yarn D is a twist yarn formed by twist processing of the ultra-high molecular weight polyethylene filament and the polyester.

[0012] Further, the twist yarn D is a twist yarn formed by 1:1 twist processing of the ultra-high molecular weight polyethylene and the polyester.

[0013] Further, the three-dimensional crimped polyester short fiber composite primer layer is prepared by mixing the polyester short fiber and the double-component polyurethane primer glue solution at a mass ratio of 0.3-0.7:1.

[0014] Further, the three-dimensional crimped polyester short fiber composite primer layer is prepared by mixing the polyester short fiber and the double-component polyurethane primer glue solution at a mass ratio of 0.3-0.7:1.

[0015] Further, the three-dimensional crimped polyester short fiber composite primer layer is prepared by mixing the polyester short fiber and the double-component polyurethane primer glue solution at a mass ratio of 0.3-0.7:1.

[0016] The utility model discloses the beneficial effect of:

[0017] The utility model discloses a fiber reinforced screen cloth structure adopts the three -dimensional crimped polyester short fiber in the double -component polyurethane primer, and the three -dimensional crimped polyester short fiber can be used as rivet to increase the adhesion between the fabric layer and primer layer and the adhesion between the primer layer and TPU layer on one hand, and the polyester short fiber tail is attached to the fabric layer surface, can increase the tear strength of the screen cloth after forming. In the fabric layer (i.e. the reinforcing layer of the utility model), by increasing 2 kinds of transition yarn between the ultra-high molecular weight polyethylene and the polyester, the sudden change of the peeling strength between the adjacent yarns is slowed down, which is beneficial to the improvement of the overall peeling strength after the connection of the fabric layer and the primer layer, fully plays the high peeling strength of the polyester and the double-component polyurethane primer and the high strength characteristics of the ultra-high molecular weight polyethylene, and improves the durability of the screen cloth. ACCURACY OF DRAWINGS

[0018] Figure 1 It is the structural exploded view of the fiber reinforced screen cloth of the utility model;

[0019] Figure 2 It is the longitudinal section structure schematic view of the fiber reinforced screen cloth of the utility model;

[0020] Figure 3 It is Figure 2 The structure schematic view of the middle primer layer;

[0021] Figure 4 It is Figure 1 The structure schematic view of the middle reinforcing layer;

[0022] Figure 5 The dipping station of the reinforcing layer is provided with a schematic diagram.

[0023] Wherein, 1 first TPU layer, 2 first bottom glue layer, 2-1 three-dimensional crimped polyester staple fiber, 3 reinforcing layer, 3-1 ultra-high molecular weight polyethylene filament A, 3-2 covered yarn C, 3-3 cabled yarn, 3-4 polyester filament B, 4 second bottom glue layer, 5 second TPU layer; 6 non-dipped reinforcing layer fabric, 7 pressure roller, 8 guide roller, 9 air flow device, 10 bottom glue solution containing polyester staple fiber, 11 dipping roller, 12 glue tank, 13 reinforcing layer after dipping bottom glue. DETAILED DESCRIPTION

[0024] In order to clearly illustrate the technical features of the present application, the present application will be described in detail below with specific embodiments, combined with the accompanying drawings.

[0025] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] As shown in Figures 1-4 The fiber-reinforced mesh fabric structure includes 5 layers arranged in order from top to bottom: a first TPU layer 1 (coating layer), a first bottom glue layer 2, a reinforcing layer 3 (fabric layer), a second bottom glue layer 4, and a second TPU layer 5. The TPU layer and the bottom glue layer are connected by casting or hot bonding. The bottom glue layer is connected to both sides of the reinforcing layer by dipping.

[0027] The reinforcing layer 3 is a warp and weft plain fabric layer, as shown in Figure 4 The warp and weft are yarns arranged in the following order: 3-1, 3-2, 3-3, 3-4, i.e., ultra-high molecular weight polyethylene filament A - covered yarn C - cabled yarn D - polyester filament B - cabled yarn D - covered yarn C - ultra-high molecular weight polyethylene filament A. The covered yarn C is a covered yarn made of ultra-high molecular weight polyethylene filament A as core yarn and polyester filament B as surface yarn. The cabled yarn D is a cabled yarn formed by 1:1 cabling of ultra-high molecular weight polyethylene filament and polyester. The warp and weft are woven with the same arrangement order and the same yarn density.

[0028] The first and second bottom glue layers are both three-dimensional crimped polyester staple fiber composite bottom glue layers. Specifically, they are composite bottom glue layers made by mixing three-dimensional crimped polyester staple fiber and double-component polyurethane bottom glue solution in a mass ratio of 0.5:1.

[0029] Referring to Figure 5 The present application provides a dipping manufacturing process of the reinforcing layer 3 of the fiber-reinforced mesh fabric, so as to facilitate a clearer understanding of the structure and composition thereof. As mentioned above, the reinforcing layer is an ultrahigh molecular weight polyethylene / polyester mixed mesh fabric reinforcing layer. In the specific manufacturing process, the yarn density and mesh size can be adjusted according to the application requirements, but the configuration sequence and yarn density of the corresponding reinforcing layer remain consistent when the warp and weft arrangement and weaving are performed.

[0030] The working process of the reinforcing layer dipping station: the un-dipped reinforcing layer fabric 6 is pressed by the front pressing roller 7, and is pulled into the glue tank 12 by the front guide roller 8 and the dipping roller 11. The polyester short fibers in the bottom glue layer adhered to the surface of the reinforcing layer fabric can penetrate the three layers of the fabric reinforcing layer and the bottom glue layers on both sides thereof under the airflow blowing of the airflow device 9 arranged on both sides of the rear guide roller 8, and form a good fixed connection. The reinforcing layer that has completed the dipping process through the rear pressing roller 7 can be used for subsequent hot compounding of the TPU layer.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0032] The above specific embodiments cannot be regarded as a limitation on the protection scope of the present application. Any alternative improvement or transformation made by those skilled in the art to the embodiments of the present application falls within the protection scope of the present application.

[0033] The details not described in the present application are well-known to those skilled in the art.

Claims

1. A fiber-reinforced spacer fabric structure, characterized by, The first TPU layer, the first bottom adhesive layer, the reinforcing layer, the second bottom adhesive layer and the second TPU layer are sequentially arranged from top to bottom; the TPU layer and the bottom adhesive layer are connected by casting or hot bonding; and the bottom adhesive layer is connected to the two sides of the reinforcing layer by dip coating; The reinforcing layer is a layer of plain fabric of warp yarns and weft yarns, and the warp yarns and the weft yarns are yarns arranged in the following order: super high molecular weight polyethylene filament A-covering yarn C-twisted yarn D-polyester filament B-twisted yarn D-covering yarn C-super high molecular weight polyethylene filament A. The first and second bottom adhesive layers are both three-dimensional crimped polyester staple fiber composite bottom adhesive layers.

2. The fiber reinforced screen structure according to claim 1, wherein, The covering yarn C is a covering yarn prepared by taking super high molecular weight polyethylene as core yarn and polyester filament as surface yarn, and the twisted yarn D is a twisted yarn formed by twisting super high molecular weight polyethylene filament and polyester.

3. The fiber reinforced mesh fabric structure of claim 2, wherein, The twisted yarn D is a twisted yarn formed by twisting super high molecular weight polyethylene filament and polyester at a ratio of 1:

1.

4. The fiber reinforced screen structure of claim 1, wherein, The three-dimensional crimped polyester staple fiber composite bottom adhesive layer is a composite bottom adhesive layer prepared by taking polyester staple fiber and double-component polyurethane bottom adhesive glue solution as raw materials and arranging them at a mass ratio of 0.3-0.7:

1.

5. The fiber reinforced screen structure of claim 4, wherein, The three-dimensional crimped polyester staple fiber composite bottom adhesive layer is a composite bottom adhesive layer prepared by taking polyester staple fiber and double-component polyurethane bottom adhesive as raw materials and arranging them at a mass ratio of 0.4-0.6:1.

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