Glass fiber building membrane base cloth and preparation method

Abstract

The application provides a glass fiber building film base cloth and a preparation method, and belongs to the technical field of new materials. The glass fiber building film base cloth solves the problem of poor stability in the prior art. The glass fiber building film base cloth comprises a middle layer of a mesh cloth, a plurality of glass fiber short bundles are arranged at corresponding middle layers, and both sides of the middle layer are coated with coating parts for covering the middle layer, namely coating part one and coating part two. The lower end of the glass fiber short bundle is covered in the coating part one, and the upper end of the glass fiber short bundle extends out of the coating part two. The glass fiber building film base cloth has good combination with other functional layers, and the preparation method has high operation efficiency.

Description

Technical Field

[0001] This invention belongs to the field of new materials technology and relates to a glass fiber architectural membrane base fabric and its preparation method. Background Technology

[0002] Fiberglass architectural membrane material base fabric is a semi-finished material used to make membrane structures.

[0003] The base fabric needs to be lightweight, high-strength, and weather-resistant, and is widely used in membrane structure buildings such as buildings, stadiums, and exhibition halls.

[0004] After connecting the corresponding functional layers to the membrane base fabric, the resulting finished product has good waterproof, stain-proof, or UV-proof functions.

[0005] However, existing membrane base fabrics are usually of a single structure, which results in poor bonding at the connection points when they are connected to other functional layers, leading to poor stability. Summary of the Invention

[0006] The first objective of this invention is to address the aforementioned problems in the prior art by providing a glass fiber architectural membrane base fabric with good bonding and a compact structure.

[0007] A second objective of this invention is to provide a method for preparing the aforementioned glass fiber architectural membrane substrate.

[0008] The objective of this invention can be achieved through the following technical solutions:

[0009] A glass fiber architectural membrane base fabric, characterized in that it includes a mesh fabric intermediate layer, a plurality of glass fiber short bundles are inserted at corresponding intermediate layers, and both sides of the intermediate layer are coated with coating portions covering the intermediate layer: coating portion one and coating portion two, the lower ends of the glass fiber short bundles are covered in coating portion one, and the upper ends of the glass fiber short bundles extend out of coating portion two.

[0010] This fiberglass architectural membrane base fabric innovatively features a coating section 1 and a coating section 2 on both sides of the intermediate layer. Coating section 1 covers the lower end of the short fiberglass bundles, while coating section 2 covers the middle portion of the short fiberglass bundles. Simultaneously, the upper ends of the short fiberglass bundles extend beyond coating section 2. Because the upper ends of the short fiberglass bundles can store a suitable amount of adhesive, the upper part of this base fabric can be stably connected to other functional layers through the upper ends of the short fiberglass bundles.

[0011] In the aforementioned glass fiber architectural membrane base fabric, the lower end of the short bundle of glass fiber is wound with a joint, the joint is locked at the lower part of the intermediate layer, and the coating part covers the joint.

[0012] The function of the connector is to prevent the lower end of the short fiberglass bundle from crossing the intermediate layer, thus acting as a limit.

[0013] In the aforementioned glass fiber architectural membrane base fabric, the end of the glass fiber short bundle extending out of the coating part two has a joint portion that disperses and loosens several bundles.

[0014] Because the strands at the joint are spread out, a suitable amount of adhesive can be stably stored at the joint, thus ensuring the bonding stability between the base fabric and other functional layers.

[0015] In the aforementioned glass fiber architectural membrane base fabric, the coating part one and the coating part two have the same thickness, and the thickness of the intermediate layer is 1 / 3 to 1 / 2 of the thickness of the coating part one.

[0016] In the aforementioned glass fiber architectural membrane base fabric, the length of the upper end of the glass fiber short bundle extending out of the coating part two is 2 to 3 times the thickness of the coating part two.

[0017] The second objective of this invention is achieved through the following technical solution:

[0018] A method for preparing a glass fiber architectural membrane base fabric, characterized in that the preparation method includes the following steps:

[0019] A. Preparation: Select a flat and wrinkle-free mesh fabric, and clean the mesh fabric to obtain the middle layer;

[0020] B. Pre-connection: Connect the fiberglass bundle to the needle of the sewing machine;

[0021] Place a blocking sheet on the upper part of the intermediate layer. After the intermediate layer and the blocking sheet are in contact and stacked, place them on the sewing platform of the sewing machine. After the sewing machine finishes sewing, sew the fiberglass bundle to the intermediate layer and the blocking sheet.

[0022] C. First cut: Cut the suture segment at the bottom of the middle layer, apply glue to the end of the suture segment and tie the end of the suture segment. After the glue solidifies, a semi-finished product is obtained.

[0023] D. First coating: The liquid raw material is evenly coated on the lower part of the first semi-finished product. During the coating process, it is ensured that the coating layer one covers the knot at the lower end of the suture segment. After the coating layer one solidifies, the second semi-finished product is obtained.

[0024] E. Secondary coating: Apply external force to separate the barrier sheet from the intermediate layer in the secondary semi-finished product, and uniformly fill the liquid raw material of the second coating layer between the barrier sheet and the intermediate layer. After the second coating layer solidifies, the third semi-finished product is obtained.

[0025] F: Separation and secondary cutting: Apply external force to separate the blocking sheet from the coating layer, cut off the seam segment protruding from the coating layer, and obtain the finished base fabric.

[0026] After the intermediate layer and the barrier sheet are stacked, the fiberglass bundle is connected to the sewing machine as a thread. After the sewing machine finishes its operation, the fiberglass bundle is stably sewn onto the intermediate layer and the barrier sheet.

[0027] After the first cut, the lower end of the sewing line is knotted and then glued. Once the glue has solidified, it will ensure that the knot does not come loose.

[0028] After secondary cutting, several independent glass fiber bundles can be formed on the upper part of the barrier sheet.

[0029] After one or two coats, coating layer one and coating layer two can be stably formed on both sides of the intermediate layer.

[0030] After the barrier glass is removed, the final product base fabric is obtained.

[0031] In the above-mentioned method for preparing glass fiber architectural membrane base fabric, the blocking sheet in step B includes an upper and lower overlapping and fixed layer one and a layer two, wherein the upper and lower layers one is cardboard and the upper and lower layers two is a PVC coating uniformly coated on the surface of the upper layers one.

[0032] The second layer of PVC material has a smooth surface, which allows the barrier sheet to be stably separated from the second coating layer.

[0033] The first layer of the cardboard is easily damaged under external force, which facilitates the separation of the blocking sheet from the second coating layer.

[0034] In the above-mentioned method for preparing glass fiber architectural membrane base fabric, the knots of the stitching segments in step C are located between the bottom of the intermediate layers and have gaps.

[0035] The aforementioned gap serves two purposes:

[0036] Firstly, avoid the glue at the knots adhering to the lower part of the middle layer;

[0037] Secondly, the glass fiber bundle has an upward displacement distance, ensuring that the glass fiber bundle extends stably out of the second coating layer.

[0038] In the above-mentioned method for preparing glass fiber building membrane base fabric, the coating layer in step D is a polyurethane material or an acrylic material.

[0039] In the above-mentioned method for preparing glass fiber building membrane base fabric, the second coating layer in step E is a polyurethane material or an acrylic material.

[0040] In the above-mentioned method for preparing glass fiber architectural membrane base fabric, step F involves using a cutter to cut and destroy the blocking sheet.

[0041] Compared with existing technologies, this glass fiber architectural membrane base fabric has better bonding and higher stability because several short bundles of glass fibers are stably connected to the intermediate layer, and the open joints at the upper ends of the short bundles of glass fibers enable other functional layers to be stably connected to the base fabric.

[0042] Meanwhile, the preparation method of the glass fiber architectural membrane base fabric adopts the placement of stitch stitching to stably sew short bundles of glass fibers onto the intermediate layer. After the above stitching is orderly cut once and twice, several independent short bundles of glass fibers are obtained. The whole preparation method is fast and has a high yield, and has high practical value. Attached Figure Description

[0043] Figure 1 This is a cross-sectional structural diagram of the base fabric of this fiberglass architectural membrane material.

[0044] In the figure, 1 is the intermediate layer; 2 is the first coating layer; 3 is the second coating layer; 4 is the short bundle of glass fiber; 4a is the knot; and 4b is the joint. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0048] Example 1

[0049] like Figure 1As shown, the base fabric of this glass fiber architectural membrane includes a mesh fabric intermediate layer, and several short glass fiber bundles are inserted into the corresponding intermediate layer. Both sides of the intermediate layer are coated with coating portions that cover the intermediate layer: coating portion one and coating portion two. The lower ends of the aforementioned short glass fiber bundles are covered in coating portion one, and the upper ends of the aforementioned short glass fiber bundles extend out of coating portion two.

[0050] The lower end of the short bundle of glass fiber is wound with a connector, which is stuck at the lower part of the intermediate layer, and the coating part covers the connector.

[0051] The end of the glass fiber short bundle extending out of the coating part two has a joint portion that disperses and separates several bundles.

[0052] The coating part one and coating part two have the same thickness, and the thickness of the intermediate layer is 1 / 3 of the thickness of coating part one.

[0053] The length of the glass fiber bundle extending beyond the coating section 2 is twice the thickness of the coating section 2.

[0054] The preparation method of the base fabric for this glass fiber architectural membrane includes the following steps:

[0055] A. Preparation: Select a flat and wrinkle-free mesh fabric, and clean the mesh fabric to obtain the middle layer;

[0056] B. Pre-connection: Connect the fiberglass bundle to the needle of the sewing machine;

[0057] Place a blocking sheet on the upper part of the intermediate layer. After the intermediate layer and the blocking sheet are in contact and stacked, place them on the sewing platform of the sewing machine. After the sewing machine finishes sewing, sew the fiberglass bundle to the intermediate layer and the blocking sheet.

[0058] The blocking sheet in step B includes two layers that are overlapped and fixed together, one layer being a cardboard and the other layer being a PVC coating uniformly coated on the surface of the first layer.

[0059] C. First cut: Cut the suture segment at the bottom of the middle layer, apply glue to the end of the suture segment and tie the end of the suture segment. After the glue solidifies, a semi-finished product is obtained.

[0060] In step C, the knots of the suture segments are placed between the bottom layers of the middle layer with gaps.

[0061] D. First coating: The liquid raw material is evenly coated on the lower part of the first semi-finished product. During the coating process, it is ensured that the coating layer one covers the knot at the lower end of the suture segment. After the coating layer one solidifies, the second semi-finished product is obtained.

[0062] The coating layer in step D is either a polyurethane material or an acrylic material.

[0063] E. Secondary coating: Apply external force to separate the barrier sheet from the intermediate layer in the secondary semi-finished product, and uniformly fill the liquid raw material of the second coating layer between the barrier sheet and the intermediate layer. After the second coating layer solidifies, the third semi-finished product is obtained.

[0064] The second coating layer in step E is a polyurethane material or an acrylic material.

[0065] F: Separation and secondary cutting: Apply external force to separate the blocking sheet from the coating layer, cut off the seam segment protruding from the coating layer, and obtain the finished base fabric.

[0066] In step F, a cutter is used to cut and destroy the blocking piece.

[0067] This fiberglass architectural membrane base fabric innovatively features a coating section 1 and a coating section 2 on both sides of the intermediate layer. Coating section 1 covers the lower end of the short fiberglass bundles, while coating section 2 covers the middle portion of the short fiberglass bundles. Simultaneously, the upper ends of the short fiberglass bundles extend beyond coating section 2. Because the upper ends of the short fiberglass bundles can store a suitable amount of adhesive, the upper part of this base fabric can be stably connected to other functional layers through the upper ends of the short fiberglass bundles.

[0068] After the intermediate layer and the barrier sheet are stacked, the fiberglass bundle is connected to the sewing machine as a thread. After the sewing machine finishes its operation, the fiberglass bundle is stably sewn onto the intermediate layer and the barrier sheet.

[0069] After the first cut, the lower end of the sewing line is knotted and then glued. Once the glue has solidified, it will ensure that the knot does not come loose.

[0070] After secondary cutting, several independent glass fiber bundles can be formed on the upper part of the barrier sheet.

[0071] After one or two coats, coating layer one and coating layer two can be stably formed on both sides of the intermediate layer.

[0072] After the barrier glass is removed, the final product base fabric is obtained.

[0073] Example 2

[0074] like Figure 1 As shown, the base fabric of this glass fiber architectural membrane includes a mesh fabric intermediate layer, and several short glass fiber bundles are inserted into the corresponding intermediate layer. Both sides of the intermediate layer are coated with coating portions that cover the intermediate layer: coating portion one and coating portion two. The lower ends of the aforementioned short glass fiber bundles are covered in coating portion one, and the upper ends of the aforementioned short glass fiber bundles extend out of coating portion two.

[0075] The lower end of the short bundle of glass fiber is wound with a connector, which is stuck at the lower part of the intermediate layer, and the coating part covers the connector.

[0076] The end of the glass fiber short bundle extending out of the coating part two has a joint portion that disperses and separates several bundles.

[0077] The coating part one and coating part two have the same thickness, and the thickness of the intermediate layer is 1 / 2 of the thickness of coating part one.

[0078] The length of the glass fiber bundle extending beyond the coating section 2 is 3 times the thickness of the coating section 2.

[0079] The preparation method of the base fabric for this glass fiber architectural membrane includes the following steps:

[0080] A. Preparation: Select a flat and wrinkle-free mesh fabric, and clean the mesh fabric to obtain the middle layer;

[0081] B. Pre-connection: Connect the fiberglass bundle to the needle of the sewing machine;

[0082] Place a blocking sheet on the upper part of the intermediate layer. After the intermediate layer and the blocking sheet are in contact and stacked, place them on the sewing platform of the sewing machine. After the sewing machine finishes sewing, sew the fiberglass bundle to the intermediate layer and the blocking sheet.

[0083] The blocking sheet in step B includes two layers that are overlapped and fixed together, one layer being a cardboard and the other layer being a PVC coating uniformly coated on the surface of the first layer.

[0084] C. First cut: Cut the suture segment at the bottom of the middle layer, apply glue to the end of the suture segment and tie the end of the suture segment. After the glue solidifies, a semi-finished product is obtained.

[0085] In step C, the knots of the suture segments are placed between the bottom layers of the middle layer with gaps.

[0086] D. First coating: The liquid raw material is evenly coated on the lower part of the first semi-finished product. During the coating process, it is ensured that the coating layer one covers the knot at the lower end of the suture segment. After the coating layer one solidifies, the second semi-finished product is obtained.

[0087] The coating layer in step D is either a polyurethane material or an acrylic material.

[0088] E. Secondary coating: Apply external force to separate the barrier sheet from the intermediate layer in the secondary semi-finished product, and uniformly fill the liquid raw material of the second coating layer between the barrier sheet and the intermediate layer. After the second coating layer solidifies, the third semi-finished product is obtained.

[0089] The second coating layer in step E is a polyurethane material or an acrylic material.

[0090] F: Separation and secondary cutting: Apply external force to separate the blocking sheet from the coating layer, cut off the seam segment protruding from the coating layer, and obtain the finished base fabric.

[0091] In step F, a cutter is used to cut and destroy the blocking piece.

[0092] This fiberglass architectural membrane base fabric innovatively features a coating section 1 and a coating section 2 on both sides of the intermediate layer. Coating section 1 covers the lower end of the short fiberglass bundles, while coating section 2 covers the middle portion of the short fiberglass bundles. Simultaneously, the upper ends of the short fiberglass bundles extend beyond coating section 2. Because the upper ends of the short fiberglass bundles can store a suitable amount of adhesive, the upper part of this base fabric can be stably connected to other functional layers through the upper ends of the short fiberglass bundles.

[0093] After the intermediate layer and the barrier sheet are stacked, the fiberglass bundle is connected to the sewing machine as a thread. After the sewing machine finishes its operation, the fiberglass bundle is stably sewn onto the intermediate layer and the barrier sheet.

[0094] After the first cut, the lower end of the sewing line is knotted and then glued. Once the glue has solidified, it will ensure that the knot does not come loose.

[0095] After secondary cutting, several independent glass fiber bundles can be formed on the upper part of the barrier sheet.

[0096] After one or two coats, coating layer one and coating layer two can be stably formed on both sides of the intermediate layer.

[0097] After the barrier glass is removed, the final product base fabric is obtained.

[0098] Example 3

[0099] like Figure 1 As shown, the base fabric of this glass fiber architectural membrane includes a mesh fabric intermediate layer, and several short glass fiber bundles are inserted into the corresponding intermediate layer. Both sides of the intermediate layer are coated with coating portions that cover the intermediate layer: coating portion one and coating portion two. The lower ends of the aforementioned short glass fiber bundles are covered in coating portion one, and the upper ends of the aforementioned short glass fiber bundles extend out of coating portion two.

[0100] The lower end of the short bundle of glass fiber is wound with a connector, which is stuck at the lower part of the intermediate layer, and the coating part covers the connector.

[0101] The end of the glass fiber short bundle extending out of the coating part two has a joint portion that disperses and separates several bundles.

[0102] The coating part one and coating part two have the same thickness, and the thickness of the intermediate layer is 1 / 3 of the thickness of coating part one.

[0103] The length of the glass fiber bundle extending beyond the coating section 2 is 3 times the thickness of the coating section 2.

[0104] The preparation method of the base fabric for this glass fiber architectural membrane includes the following steps:

[0105] A. Preparation: Select a flat and wrinkle-free mesh fabric, and clean the mesh fabric to obtain the middle layer;

[0106] B. Pre-connection: Connect the fiberglass bundle to the needle of the sewing machine;

[0107] Place a blocking sheet on the upper part of the intermediate layer. After the intermediate layer and the blocking sheet are in contact and stacked, place them on the sewing platform of the sewing machine. After the sewing machine finishes sewing, sew the fiberglass bundle to the intermediate layer and the blocking sheet.

[0108] The blocking sheet in step B includes two layers that are overlapped and fixed together, one layer being a cardboard and the other layer being a PVC coating uniformly coated on the surface of the first layer.

[0109] C. First cut: Cut the suture segment at the bottom of the middle layer, apply glue to the end of the suture segment and tie the end of the suture segment. After the glue solidifies, a semi-finished product is obtained.

[0110] In step C, the knots of the suture segments are placed between the bottom layers of the middle layer with gaps.

[0111] D. First coating: The liquid raw material is evenly coated on the lower part of the first semi-finished product. During the coating process, it is ensured that the coating layer one covers the knot at the lower end of the suture segment. After the coating layer one solidifies, the second semi-finished product is obtained.

[0112] The coating layer in step D is either a polyurethane material or an acrylic material.

[0113] E. Secondary coating: Apply external force to separate the barrier sheet from the intermediate layer in the secondary semi-finished product, and uniformly fill the liquid raw material of the second coating layer between the barrier sheet and the intermediate layer. After the second coating layer solidifies, the third semi-finished product is obtained.

[0114] The second coating layer in step E is a polyurethane material or an acrylic material.

[0115] F: Separation and secondary cutting: Apply external force to separate the blocking sheet from the coating layer, cut off the seam segment protruding from the coating layer, and obtain the finished base fabric.

[0116] In step F, a cutter is used to cut and destroy the blocking piece.

[0117] This fiberglass architectural membrane base fabric innovatively features a coating section 1 and a coating section 2 on both sides of the intermediate layer. Coating section 1 covers the lower end of the short fiberglass bundles, while coating section 2 covers the middle portion of the short fiberglass bundles. Simultaneously, the upper ends of the short fiberglass bundles extend beyond coating section 2. Because the upper ends of the short fiberglass bundles can store a suitable amount of adhesive, the upper part of this base fabric can be stably connected to other functional layers through the upper ends of the short fiberglass bundles.

[0118] After the intermediate layer and the barrier sheet are stacked, the fiberglass bundle is connected to the sewing machine as a thread. After the sewing machine finishes its operation, the fiberglass bundle is stably sewn onto the intermediate layer and the barrier sheet.

[0119] After the first cut, the lower end of the sewing line is knotted and then glued. Once the glue has solidified, it will ensure that the knot does not come loose.

[0120] After secondary cutting, several independent glass fiber bundles can be formed on the upper part of the barrier sheet.

[0121] After one or two coats, coating layer one and coating layer two can be stably formed on both sides of the intermediate layer.

[0122] After the barrier glass is removed, the final product base fabric is obtained.

[0123] The technical features of the above-described embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0124] Those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any appropriate changes and variations made to the above embodiments within the essential spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A method for preparing a glass fiber architectural membrane base fabric, characterized in that, The preparation method includes the following steps: A. Preparation: Select a flat and wrinkle-free mesh fabric, and clean the mesh fabric to obtain the middle layer; B. Pre-connection: Connect the fiberglass bundle to the needle of the sewing machine; Place a blocking sheet on the upper part of the intermediate layer. After the intermediate layer and the blocking sheet are in contact and stacked, place them on the sewing platform of the sewing machine. After the sewing machine finishes sewing, sew the fiberglass bundle to the intermediate layer and the blocking sheet. C. First cut: Cut the suture segment at the bottom of the middle layer, apply glue to the end of the suture segment and tie the end of the suture segment. After the glue solidifies, a semi-finished product is obtained. D. First coating: The liquid raw material is evenly coated on the lower part of the first semi-finished product. During the coating process, it is ensured that the coating layer one covers the knot at the lower end of the suture segment. After the coating layer one solidifies, the second semi-finished product is obtained. E. Secondary coating: Apply external force to separate the barrier sheet from the intermediate layer in the secondary semi-finished product, and uniformly fill the liquid raw material of the second coating layer between the barrier sheet and the intermediate layer. After the second coating layer solidifies, the third semi-finished product is obtained. F: Separation and secondary cutting: Apply external force to separate the blocking sheet from the coating layer, cut off the seam segment protruding from the coating layer, and obtain the finished base fabric.

2. The method for preparing the glass fiber architectural membrane base fabric according to claim 1, characterized in that, The blocking sheet in step B includes two layers that are overlapped and fixed together, one layer being a cardboard and the other layer being a PVC coating uniformly coated on the surface of the first layer.

3. The method for preparing the glass fiber architectural membrane base fabric according to claim 2, characterized in that, In step C, the knots of the suture segments are placed between the bottom layers of the middle layer with gaps.

4. The method for preparing the glass fiber architectural membrane base fabric according to claim 3, characterized in that, The coating layer in step D is either a polyurethane material or an acrylic material.

5. The method for preparing the glass fiber architectural membrane base fabric according to claim 4, characterized in that, The second coating layer in step E is a polyurethane material or an acrylic material.

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