WO2017140121A1

WO2017140121A1 - Bakelite corrugated board made of pre-woven member with flow guide layer and manufacturing method therefor

Info

Publication number: WO2017140121A1
Application number: PCT/CN2016/103670
Authority: WO
Inventors: 梅天诚
Original assignee: 苏州振瑞昌材料科技有限公司
Priority date: 2016-02-19
Filing date: 2016-10-28
Publication date: 2017-08-24
Also published as: CN105694354A

Abstract

The invention discloses a bakelite corrugated board made of pre-woven member with flow guide layer. Phenolic resin is used as matrix resin of the bakelite corrugated board. The pre-woven member with the flow guide layer comprises glass mat laid in a layered manner, fiber cloth for the flow guide layer and interlayer continuous fibers. The fiber cloth for the flow guide layer is positioned in middle layer of the glass mats laid in the layered manner, and the glass mat laid in the layered manner is sewn with the fiber cloth for the flow guide layer through the interlayer continuous fibers. The bakelite corrugated board has the advantages that A-grade fireproof nonmetal high-strength corrosion-resistant effects can be realized, and can be widely applied to roofs or wall surfaces of steel structures.

Description

Electric wood wave board made of pre-woven fabric with drainage layer and manufacturing method thereof

Technical field

The present invention relates to the field of construction, and in particular to an electric wood wave board made of a pre-woven fabric with a flow guiding layer and a manufacturing method thereof.

Background technique

Due to its special shape and function, the wave roof structure has been widely used in various storage and other structures of industrial and civil buildings. Its short production and construction cycle has been widely favored by users' construction workers.

In recent years, with the development of the national economy, the advancement of science and technology, the structure and materials of large-scale industrial buildings in the expansion and new metallurgy, textile, machinery and other industries have undergone great changes. Traditional cement asbestos corrugated board, glass steel corrugated board, imitation glass corrugated board, asbestos tile, glass and other structural materials, due to the cumbersome and easy to break, can not meet the requirements of modern industrial production technology.

Recently developed metal stamping plates and color steel tiles and other products are expanding their use. However, there is a widespread problem of rust and decay of color steel roof tiles on the roof of workshops such as polluting enterprises. According to incomplete statistics, the longest service life of metal roofing tiles in chemical, casting, smelting, electroplating, electrolysis and pickling enterprises is generally only a few. In the year, this brought many safety hazards and high maintenance costs to these buildings.

The traditional FRP corrugated board is the most important product of glass fiber reinforced plastic for construction, and the main resin is usually made of unsaturated resin. Although the corrugated board made of the composite material has excellent corrosion resistance and light weight, the conventional glass steel corrugated board is easy to burn under high temperature conditions. When the flame retardant is added to the FRP corrugated board, its mechanical properties will be significantly reduced.

Therefore, how to improve the corrosion resistance, flame retardancy and mechanical properties of roofing or wallboard is an urgent need of current building structural systems.

Summary of the invention

The invention is directed to the deficiencies of the above prior art, and provides an electric wood wave board applied to a large steel structure roof or wall surface, which has the advantages of fireproof, corrosion resistance, light weight, high strength, safety and reliability, and high industrial manufacturing degree.

The technical solution adopted by the present invention is as follows:

An electric wood wave board made of a pre-woven fabric with a flow guiding layer, which comprises a phenolic resin as a matrix resin, the pre-woven fabric with a drainage layer comprising a layered glass mat, a drainage fabric and a layer Continuous fiber, wherein the baffle fiber cloth is located at an intermediate layer of the layered glass mat, and the layered glass mat and the baffle fiber cloth pass through the interlayer continuous fiber Stitched together.

Further, it is produced by a pultrusion process from a component comprising the following parts by weight, wherein the phenolic resin: 20 to 30 parts, the halogen-free flame retardant: 0.5 to 2 parts, the carbon fiber: 1 to 3 parts, and the glass fiber yarn: 50 to 70 parts, polyester surface felt: 4 to 7 parts, diluent: 2 to 8 parts, mold release agent: 0.5 to 1.5 parts, pigment: 0.5 to 1.5 parts.

Further, it is produced by a pultrusion process from a component containing the following parts by weight, wherein: phenolic resin: 25 parts, halogen-free flame retardant: 1 part, carbon fiber: 1.5 parts, glass fiber yarn: 60 parts, polyester surface Felt: 5.5 parts, diluent: 5 parts, release agent: 1 part, pigment: 1 part.

Further, the temperature of the pultrusion die in the pultrusion process is 140 to 280 °C.

Further, the pigment is ferric oxide having a particle diameter of 5 to 15 μm or titanium dioxide having a particle diameter of 1 to 5 μm.

In addition, the present invention also provides a method of manufacturing the above-described bakelite wave board, comprising the following steps:

Step 1) Preparation of resin system material: blending phenolic resin, halogen-free flame retardant, diluent, pigment, and release agent, and keeping the blending tank at a constant temperature to obtain a resin system material;

Step 2) Fabrication of the pre-woven fabric: firstly laminating the glass fiber mat, then adding the drainage fabric fiber cloth to the intermediate layer of the layered glass mat, and then applying the sewing technique through the high-strength continuous carbon fiber yarn Laying the layered glass fiber mat and the drainage layer fiber cloth together to obtain a carbon fiber interlayer reinforced glass fiber mat pre-woven member; the obtained glass fiber mat pre-impregnation member is soaked in the step 1) The resin system obtained in the above, after which the polyester surface felt is wrapped and shaped into the pre-woven fabric by a preforming mold;

Step 3) Curing molding: The pre-woven fabric is pulled into the metal mold cavity to perform three-stage temperature-controlled curing.

Further, in step 1), the temperature of the blending tank will be maintained at 85 degrees Celsius.

Further, the temperature of the three stages is 140 to 170 ° C, 180 to 240 ° C, and 160 to 190 ° C, respectively.

Further, the temperatures of the three stages are preferably 160 ° C, 210 ° C, and 180 ° C, respectively.

The bakelite board can achieve the high-strength and anti-corrosion effect of Class A fireproof non-metal, and can be widely applied to steel structure roof or wall surface.

The present invention has the following advantages over the prior art:

1. The pre-woven fabric of the invention adopts a fiber cloth with reinforcing effect as a flow guiding layer, can uniformly penetrate the fiber mat during the resin impregnation process, and the obtained composite material has stable performance, and the combination of the glass fiber and the carbon fiber makes the material Uniform longitudinal and transverse strength, suitable for large steel roofing. After the fire, the material will form carbonized crystals due to high temperature (insoluble and infutable). The carbon fiber and glass fiber fabric structure used in the composition has good support performance and guarantees. The carbonized crystals of the sheet will not collapse.

1. Bakelite is made of high-temperature anti-corrosion special resin. The anti-corrosion high-quality series of alkali-free glass fiber is used as reinforcing material. It is reinforced with carbon fiber and wrapped with polyester surface felt. Its weight is much lower than the same volume. The metal roof corrugated board, and the mechanical properties have reached the strength of the steel, the bearing capacity is more than 620kg; through the design of the fiber fabric structure to achieve the purpose of uniform stress, the transverse strength of the pultruded profile with large cross-sectional area is solved, and the longitudinal strength Low problem, while mixing carbon fiber into the fabric, the tensile strength is increased by more than 50%

2. The corrugated board is sprayed with refractory coating, and the surface protective layer of the polyester film is covered with the upper and lower layers, and the pigment is used as the resin coloring agent, which has high strength, strong anti-aging property and excellent anti-corrosion performance; it is resistant to acid, alkali and salt. Resistance to water vapor corrosion. This product is a new substitute for metal color steel tile and ordinary FRP sheet. It is a new type of anti-corrosion tile for building roof (working area isolation) in metallurgy, chemical industry and other industries.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a structural view showing a fiber pre-woven member of a bakelite board in the present invention.

Description of the reference signs:

1. Glass felt, 2. Conductor fiber cloth,

3. Inter-layer continuous fibers.

detailed description

The present invention will be further described in detail below with reference to the drawings and embodiments for the purpose of full disclosure. It is understood that the specific embodiments described below are merely illustrative of the invention and are not intended to limit the scope of the invention.

The bakelite board of the present invention uses a phenolic resin as a matrix resin, a non-metallic roofing (wall) wave board prepared by a pultrusion process, and then sprays a high fire-resistant coating, and covers the corrosion-resistant polyester film surface protective layer.

The fiber-reinforced phenolic resin composite roofing (wall) wave board provided by the invention is made of a pre-woven fabric with a drainage layer, and the pre-woven fabric with a drainage layer comprises a layered glass mat 1. a baffle fiber cloth 2 and an interlayer continuous fiber 3, wherein the baffle fiber cloth 2 is located at an intermediate layer position of the layered glass mat 1, the layer paved glass mat 1 and the The baffle fiber cloth 2 is sewn together by the inter-layer continuous fibers 3. Among them, the wind guide fiber cloth may be a carbon fiber unidirectional cloth, and the carbon fiber unidirectional cloth means a carbon fiber filament having a large amount in one direction (usually a warp direction) and a small amount and usually a fine carbon fiber yarn in the other direction.

The bakelite board is made by a pultrusion process comprising the following parts by weight, and the pultrusion die temperature is 140-280 ° C:

In an embodiment of the present invention, the phenolic resin is a common thermoplastic phenolic resin; the halogen-free flame retardant may be ultrafine aluminum hydroxide powder or magnesium hydroxide powder, or may be polyaluminum acid; Or a composite system of these flame retardants; the carbon fiber is a common T300 series carbon fiber Dimensions, can be domestic carbon fiber, such as Jiangsu Hengshen, Zhongfu Shenying T300 series; can also be imported T300 series carbon fiber, such as Japan Toray, Toho and other products. The glass fiber yarn is a common alkali-free glass fiber yarn; the polyester continuous felt is purchased from a polyester continuous felt; the diluent is an industry conventional diluent such as ethanol; and the phenolic resin is a commercially available phenolic phenolic resin. Resin, such as phenolic resin of Changshu Southeast Plastics Co., Ltd. model NR9450 (brown viscous liquid for pultrusion). The release agent is a conventional release agent in the industry, such as industrial paraffin. The pigment is ferric oxide having a particle diameter of 5 to 15 μm, or titanium dioxide having a particle diameter of 1 to 5 μm, that is, titanium dioxide or the like. The weather resistant coating is a common fluorocarbon coating. The polyester film is a conventional polycarbonate film to which an ultraviolet absorber is added.

The invention provides the steps for preparing the bakelite board as follows:

1. Preparation of resin system: firstly blend phenolic resin, halogen-free flame retardant, diluent, pigment and mold release agent, the blending tank is kept at a constant temperature, and the temperature is maintained at 85 degrees, so that the resin material is kept very good. Liquidity does not cross-link reaction.

2. Pre-woven manufacturing: The above-mentioned carbon fiber and glass fiber are woven into a cylindrical shape by a weaving machine, and after impregnating the resin material, the polyester surface felt is wrapped by a preforming mold.

3. Curing and forming: The above-mentioned pre-woven fabric is pulled into the metal mold cavity to perform three-stage temperature-controlled curing, and the temperature of the three sections is 140-170 ° C, 180-240 ° C, 160-190 ° C, respectively. At the end of the metal mold, the crawler is used to drag the profile.

Example 1

A fiber reinforced phenolic resin composite roofing (wall) wave board is produced by a pultrusion process comprising the following parts by weight, and the pultrusion mold temperature is 140 to 280 ° C:

The preparation steps are as follows:

3. Curing and forming: The above-mentioned pre-woven fabric is pulled into the metal cavity, and three-stage temperature-controlled curing is performed. The temperatures of the three sections are 160 ° C, 210 ° C, and 180 ° C, respectively. At the end of the metal mold, the crawler is used to drag the profile.

Example 2

The preparation steps are as follows:

2. Pre-woven manufacturing: the manufacture of pre-woven parts: firstly layer the glass fiber mat, then add the drainage layer fiber cloth to the middle layer of the layered glass mat, and then use the sewing technique to pass the high-strength continuous carbon fiber. Silk layering the layered glass fiber mat and the drainage layer fiber cloth together to obtain a carbon fiber interlayer reinforced glass fiber mat pre-woven member; the glass fiber felt pre-woven material to be obtained Soaking the resin system material obtained in the step 1), and then wrapping the polyester surface felt And shaped into the pre-woven by a preforming mold.

3. Curing and forming: The above-mentioned pre-wovens are pulled into the metal cavity, and three-stage temperature-controlled curing is carried out. The temperature of the three sections is 170 ° C, 240 ° C, 190 ° C, and the crawler of the metal mold is used to drag the profile. Hey.

Example 3

The preparation steps are as follows:

2. Pre-woven manufacturing: the manufacture of pre-woven parts: firstly layer the glass fiber mat, then add the drainage layer fiber cloth to the middle layer of the layered glass mat, and then use the sewing technique to pass the high-strength continuous carbon fiber. Silk layering the layered glass fiber mat and the drainage layer fiber cloth together to obtain a carbon fiber interlayer reinforced glass fiber mat pre-woven member; the glass fiber felt pre-woven material to be obtained The resin system material obtained in the step 1) is impregnated, and then the polyester surface felt is wrapped and shaped into the pre-woven fabric by a preforming mold.

It has been experimentally verified that the performance of the bakelite board produced by the method of the present invention is as follows:

Tensile strength: 148MPa, bending strength: 308MPa, Barcol hardness: 48, impact toughness: 98.4kj/m ² , load-bearing performance: (span 1500mm, deformation 3% under bearing capacity) 3651.2N, heat distortion temperature: >296 °C, flame retardant grade: A grade.

The above-mentioned embodiments are merely illustrative of the embodiments of the present invention, and the description thereof is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

An electric wood wave board made of a pre-woven fabric with a flow guiding layer, which is based on a phenol resin, wherein the pre-woven fabric with a drainage layer comprises a layered glass mat and a drainage layer. a fiber cloth and an interlayer continuous fiber, wherein the drainage layer fiber cloth is located at an intermediate layer position of the layered glass mat, and the layered glass mat and the drainage layer fiber cloth pass through The continuous fibers between the layers are stitched together.
The bakelite wave board made of the baffled pre-woven fabric according to claim 1, wherein the component is composed of the following parts by weight, and the phenolic resin is 20 to 30. Parts, halogen-free flame retardant: 0.5 to 2 parts, carbon fiber: 1-3 parts, glass fiber yarn: 50 to 70 parts, polyester surface felt: 4 to 7 parts, thinner: 2 to 8 parts, release agent : 0.5 to 1.5 parts, pigment: 0.5 to 1.5 parts.
The bakelite wave board made of the baffled pre-woven fabric according to claim 2, which is produced by a pultrusion process from a component containing the following parts by weight, wherein the phenolic resin: 25 parts, Halogen-free flame retardant: 1 part, carbon fiber: 1.5 parts, glass fiber yarn: 60 parts, polyester surface felt: 5.5 parts, diluent: 5 parts, mold release agent: 1 part, pigment: 1 part.
The bakelite wave board made of the baffle-pretreated fabric according to claim 2 or 3, wherein the pultrusion die has a temperature of 140 to 280 ° C in the pultrusion process.
The bakelite board made of a baffle-bearing pre-woven fabric according to claim 2 or 3, wherein the pigment is ferric oxide having a particle diameter of 5 to 15 μm or a particle size of 1 ~ 5 microns of titanium dioxide.
A method of manufacturing an electric wood wave board made of a baffled pre-woven fabric according to claim 1, comprising the steps of:

Step 1) Preparation of resin system material: blending phenolic resin, halogen-free flame retardant, diluent, pigment, and release agent, and keeping the blending tank at a constant temperature to obtain a resin system material;

Step 2) Fabrication of the pre-woven fabric: firstly laminating the glass fiber mat, then adding the drainage fabric fiber cloth to the intermediate layer of the layered glass mat, and then applying the sewing technique through the high-strength continuous carbon fiber yarn Laying the layered glass fiber mat and the drainage layer fiber cloth together to obtain a carbon fiber interlayer reinforced glass fiber felt pre-woven; the glass fiber felt pre-woven material to be obtained Soaking the resin system material obtained in the step 1), then wrapping the polyester surface felt and shaping it into the pre-woven fabric by a preforming mold;

Step 3) Curing molding: The pre-woven fabric is pulled into the metal mold cavity to perform three-stage temperature-controlled curing.
The method of claim 5 wherein in step 1) the temperature of the blending tank is maintained at 85 degrees Celsius.
The method according to claim 5, wherein in the step 3), the temperature of the three stages is 140 to 170 ° C, 180 to 240 ° C, and 160 to 190 ° C, respectively.
The manufacturing method according to claim 7, wherein the temperatures of the three stages are preferably 160 ° C, 210 ° C, and 180 ° C, respectively.