TWM595132U - Polymer composite fiber-reinforced fabric - Google Patents

Abstract

This invention creates a polymer composite fiber-reinforced fabric which is woven with multiple fiber-reinforced yarns. The multiple fiber-reinforced yarns include a first fiber-reinforced yarn arranged in a first direction and a plurality of fiber-reinforced yarns arranged in a second direction The second fiber-expanded yarn, the plurality of first fiber-expanded yarns and the plurality of second fiber-expanded yarns are interlaced, interwoven, woven and formed, and each fiber-expanded yarn uses a thermoplastic polymer compound as a base material and includes: a plurality of fibers It is a unidirectional arrangement; in order to solve the problems of the existing fiber-reinforced fabrics, this creation proposes a polymer composite fiber-reinforced fabric, which is a fiber-reinforced fiber with low fiber basis weight, low resin content and easy application The yarn is woven, which can provide a thinner and better quality polymer composite fiber-reinforced fabric.

Description

Polymer composite fiber-reinforced fabric

This creation involves the general shaping of plastic state substances.

According to the existing thermosetting fiber-reinforced yarns in the industry, there are the following problems. The thermosetting polymer prepregs used in the manufacturing process, because of the characteristics of thermosetting resins, are sticky at room temperature. Use release paper to attach to the surface to avoid sticking, and then remove the release paper during use. In the subsequent process, it needs to be performed at a low temperature to avoid curing of the thermosetting resin. In addition, although the prepreg is heated and cured, it is not sticky. However, it cannot be directly pasted. It needs to be impregnated or added with plastics to perform lamination. There are many inconveniences in the process.

Existing thermoplastic fiber-reinforced yarns have problems of poor dimensional stability and cannot meet market demands.

In addition, under the current situation that the industry requires wider and thinner fiber-reinforced fabrics, how to reduce the thickness of the fiber-reinforced fabrics and increase the width is also a problem that needs to be solved in the existing process.

In order to solve the various problems of existing fiber-reinforced fabrics, this creation proposes a polymer composite fiber-reinforced fabric, which is woven from a fiber-reinforced yarn with low fiber basis weight, low resin content, and easy application, which can provide A polymer composite fiber-reinforced fabric with thinner thickness and better quality.

A polymer composite fiber-reinforced fabric, which is woven from a plurality of fiber-reinforced yarns, the plurality of fiber-reinforced yarns including a first fiber-reinforced yarn arranged in a first direction and a plurality of second fiber-arranged yarns arranged in a second direction Spreading yarns, the plurality of first fiber-spreading yarns and the plurality of second fiber-spreading yarns are interlaced, interwoven, woven and formed, and each fiber-spreading yarn is made of a thermoplastic polymer compound as a base material and includes: a plurality of fiber-based yarns The orientation is arranged in the substrate; wherein, the fiber basis weight of the expanded yarn is greater than or equal to 70g/m ² and less than or equal to 160g/m ² ; the width of the expanded yarn is less than or equal to 100cm; and the expanded fiber The resin content of the yarn is 30% or more and 50% or less.

In the polymer composite fiber-reinforced fabric, the fiber basis weight of the fiber-reinforced yarn is greater than or equal to 70 g/m ² and less than or equal to 100 g/m ² .

In the polymer composite fiber-reinforced fabric, the resin content of the fiber-reinforced yarn is greater than or equal to 32% and less than or equal to 47%.

The efficiency gains obtained by the technical means of this creation are:

1. The fiber-spreading yarn used in this creation has the characteristics of low fiber unit weight and low resin content, which can reduce the thickness and increase the width, and can make the thickness of the polymer composite fiber-reinforced fabric woven into thinner.

2. This creation uses a thermoplastic compound as the base material of the prepreg material. The prepreg material is dried and shaped after baking in the shaping step. It is not sticky and is easy to cut in pieces. The subsequent steps can be performed at room temperature. It can save the trouble of using, and achieve the effect of improving operation efficiency and reducing operation cost.

3. When creating the polymer composite fiber-reinforced fabric, according to the stress requirements in different directions, multiple prepregs can be laminated and laminated at different angles, and then cut and woven without additional need. Impregnated or added with plastic, it can be shaped and maintained in the shape of the fabric only after a short heating after completion, improving the elasticity of the knitting design and the convenience of the operation.

4. In the fiber expansion step, the unidirectionally arranged reinforcing fibers are spread, and each fiber is expanded, at the same time, it will contact and block with the adjacent fibers to enhance the consistency of the size of each fiber during fiber expansion The average weight per unit area of the finished fiber can increase the degree of control over the thickness of the expanded yarn, and can further reduce the thickness of the expanded yarn, and can expand the original polymer composite material woven into. The thickness of the fiber fabric is thinner.

5. In the impregnation step, the fiber-expanded fiber is immersed in the substrate with plastic powder. The plastic powder can adhere to the surface of the fiber through the fluid and viscous substrate and be evenly distributed between the fibers, which can reduce the unit. The resin content in the volume, and the fiber is more fully impregnated, can reduce the thickness of the fiber-expanded yarn, and can provide a thinner polymer composite fiber-expanded fabric.

6. This creation is to spread yarns of unidirectionally arranged fibers, and the thermoplastic resin as the base material has high fluidity and certain viscosity, which allows resin and plastic powder to easily penetrate into the fibers and make the fibers more adequate. Impregnated to avoid the condition of dry yarn inside the finished product. Through the improvement of the aforementioned process, the width of a completed polymer composite prepreg can reach 100cm, and it can be cut into more strips. Fiber yarn, which increases the output of polymer composite fiber-reinforced fabrics; in addition, it can maintain the integrity of fibers during cutting, reduce the error during cutting, and improve the quality of polymer composite fiber-reinforced fabrics.

7. The manufacturing method used to manufacture polymer composite fiber-reinforced fabric can be applied to the existing equipment on the market, and the quality of the finished product can be improved without major changes to the equipment.

10: Fiber

20: substrate

30: added epoxy resin for observation

40, 40A: polymer composite fiber-reinforced fabric

41: The first expanded yarn

42: Second spun yarn

S1: Fiber expansion step

S2: Impregnation step

S3: finalization steps

S4: Cutting steps

S5: Weaving steps

W: Maximum width

L: The width of the expanded fiber after cutting

Fig. 1 is a schematic diagram of the cross section of the prepreg material created.

Figure 2 is a schematic diagram of the production process of the creation.

Fig. 3 is a schematic diagram of cutting and slitting the prepreg after drying and shaping into a fiber-expanded yarn and winding it up.

Fig. 4 is a schematic diagram of the overlapping weaving of the first expanded fiber and the second expanded fiber created in this invention.

Figure 5 is a kind of expanded fabric created for this.

Figure 6 is another creation of expanded fabric.

In order to understand the technical characteristics and practical effects of this creation in detail, and to achieve it in accordance with the content of the creation, the preferred embodiment as shown in the figure is further described below, and the detailed description is as follows: As shown in FIG. 2, the method for manufacturing the polymer composite fiber-reinforced fabric of the present invention includes a fiber-expanding step S1, an impregnation step S2, a shaping step S3, a cutting step S4, and a weaving step S5.

Fiber expansion step S1: Several fibers 10 arranged unidirectionally are passed through a heated spreader rod, and the spreader is stretched by the tension of the spreader rod to expand the fiber 10 to increase its width to the desired size. After being expanded, several fibers 10 form a single and unidirectional fiber plane; among them, several fibers 10 can be any reinforced fibers such as carbon fiber or glass fiber; wherein, the temperature range of the spreading bar is 80℃~120°C, The angle range between the fiber and the horizontal plane is 10°~70°.

Impregnation step S2: The expanded fiber 10 is impregnated into the base material 20 to form a prepreg. The base material 20 is a thermoplastic resin with plastic powder. The thermoplastic resin needs to have high fluidity to be fully impregnated. Fiber 10, and can bring the plastic powder into the fiber, and the thermoplastic resin also has a certain viscosity so that the plastic powder can adhere to the surface of the plurality of fibers 10, in the preferred embodiment of the present invention, the thermoplastic resin The viscosity range is 2000~30000cp.

Setting step S3: The prepreg formed after impregnation is baked to dry and set the prepreg, and at the same time, the plastic powder is melted by the high temperature of baking to penetrate into the fiber 10. In this step, the prepreg can be wound into the pan head to become the roll material, and then the subsequent process is performed.

Cutting step S4: Determine the size of the dried and shaped prepreg according to the requirements and cut along the fiber direction, and cut it into more than one expanded fiber in a ribbon shape; in this step, you can also first After drying and shaping, the multiple prepregs are laminated and pressed at different angles according to the requirements, and then cut into more than one fiber-spreading yarn in a ribbon shape according to the required size.

As shown in Fig. 3, the left side in Fig. 3 is the roll material after the drying and setting of the prepreg is wound, and the roll material is cut from left to right, and the strip is divided into several strip-shaped fiber-spreading yarns; Among them, dry The maximum width W of the finished prepreg can reach 100cm, and the width L of each strip-shaped expanded yarn prepreg after cutting can be at least 0.5cm.

Weaving step S5: Weave the cut fiber-expanded yarn according to the design requirements, and then heat and set it briefly to maintain the texture pattern of the fabric, and complete the polymer composite fiber-expanded fabric of this creation. The setting temperature range in this step: greater than the glass transition temperature and less than the melting point.

Please refer to FIG. 1. FIG. 1 shows the cross-section of the aforementioned dried and shaped prepreg placed under a microscope. The white dots are the cross-sections of each fiber 10, and the color is lighter and scattered among the several. Between the fibers 10 is the base material 20. The black part on the upper and lower sides of FIG. 1 is the added epoxy resin 30 for microscopic observation. As can be seen in FIG. 1, the base material 20 has been fully impregnated into the inside of the fibers 10 .

Please refer to FIG. 4 and FIG. 5, FIG. 4 is to interlace and weave the first fiber-spreading yarn 41 arranged in the first direction and a plurality of second fiber-spreading yarns 42 arranged in the second direction. After dyeing the first fiber-spreading yarn 41 arranged in one direction and the plurality of second fiber-spreading yarns 42 arranged in the second direction, the plurality of first fiber-spreading yarns 41 and the plurality of second fiber-spreading yarns 42 are mutually A polymer composite fiber-reinforced fabric 40 made of overlapping weaves.

Please refer to FIG. 6, which is a polymer composite fiber-reinforced fabric 40A which is a prepreg after cutting and slitting, and is woven according to design.

The polymer composite fiber-reinforced fabric obtained by this creative process is woven with fiber-reinforced yarn. The fiber-reinforced yarn includes the following characteristics: including a plurality of fibers 10 and a substrate 20, and the plurality of fibers 10 is unidirectional The fiber 10 is any reinforcing fiber such as carbon fiber or glass fiber, and the base material 20 is a thermoplastic resin; the weight per unit area of the expanded yarn is greater than or equal to 70 g/m ² and less than or equal to 160 g/m ² , and the resin content is greater than or equal to 30 % And less than or equal to 50%, and the width is up to 100cm.

More preferably, when the weight per unit area of the expanded yarn is 70 g/m ^{2 or more} and 160 g/m ² or less, and the resin content is 32% or more and 47% or less, the finished product can be most effectively reduced The thickness of the prepreg material has a stable yield, which can improve the quality of the polymer composite fiber-reinforced fabric of this creation.

The fiber-spreading yarn used in this creation has the characteristics of low fiber unit weight and low resin content, which can reduce the thickness and increase the width, and can make the thickness of the polymer composite fiber-reinforced fabric woven into thinner.

Compared with prepregs that use thermosetting polymer compounds as the base material, they have the problem of being stored in release paper to prevent resin sticking, and the inconvenience of back-end processing in a low-temperature environment. This creation uses thermoplastic compounds as The base material of the prepreg, which is dried and shaped after baking in the shaping step, and is not sticky and easy to be slit and cut. The steps after the shaping step S3 can be performed at normal temperature, which can save the use. The trouble of achieving the effect of improving operation efficiency and reducing operation cost.

During the manufacture of the polymer composite fiber-reinforced fabric of this creation, multiple prepregs can be laminated at different angles according to the stress requirements in different directions, and then cut and woven, without additional impregnation or Add plastics, and after only a short heating, you can shape and maintain the pattern of the fabric, improve the elasticity of the knitting design and the convenience of the operation.

In the fiber expansion step S1, the unidirectionally arranged reinforcing fibers are spread, and each fiber is expanded and at the same time, it will contact and block with the adjacent fibers to improve the consistency of the size of each fiber during fiber expansion, and Make the weight of the finished fiber per unit area more even, which can improve the degree of control of the thickness of the expanded yarn, and can further reduce the thickness of the expanded yarn, and can make the thickness of the woven original polymer composite expanded fabric Thinner.

In the impregnation step S2, the fiber-expanded fiber is immersed in the base material with plastic powder. The plastic powder can adhere to the fiber surface through the fluid and viscous base material and be evenly distributed between the fibers, which can reduce the unit volume. In the resin content, and the fiber can be more fully impregnated, the thickness of the fiber-expanded yarn can be reduced, and a thinner polymer composite fiber-expanded fabric can be provided.

This creation is to spread yarns of unidirectionally arranged fibers, and the thermoplastic resin as the base material has high fluidity and certain viscosity, which allows resin and plastic powder to easily penetrate into the fibers, so that the fibers are more fully impregnated. To avoid the condition of dry yarn inside the finished product, through the improvement of the foregoing process, the width of a completed polymer composite prepreg can reach 100cm, and can be cut into more strip-shaped expanded yarn , Increase the output of polymer composite fiber-reinforced fabrics; In addition, it can maintain the integrity of fibers during cutting, reduce the error during cutting, and improve the quality of polymer composite fiber-reinforced fabrics.

This method for manufacturing polymer composite fiber-reinforced fabric can be applied to the existing equipment on the market without the need to make significant changes to the equipment, that is, the weight per unit area and resin content of the fiber-reinforced yarn can be reduced to achieve the reduction of polymer Composite material expands the thickness of the finished fabric and increases the width.

40: Polymer composite fiber-reinforced fabric

41: The first expanded yarn

42: Second spun yarn

Claims (3)

A polymer composite fiber-reinforced fabric, which is woven from a plurality of fiber-reinforced yarns, the plurality of fiber-reinforced yarns including a first fiber-reinforced yarn arranged in a first direction and a plurality of second fiber-arranged yarns arranged in a second direction Spreading yarns, the plurality of first fiber-spreading yarns and the plurality of second fiber-spreading yarns are interlaced, interwoven, woven and formed, and each fiber-spreading yarn is made of a thermoplastic polymer compound as a base material and includes: a plurality of fiber-based yarns The orientation is arranged in the substrate; wherein, the fiber basis weight of the expanded yarn is greater than or equal to 70g/m ² and less than or equal to 160g/m ² ; the width of the expanded yarn is less than or equal to 100cm; and the expanded fiber The resin content of the yarn is 30% or more and 50% or less. The polymer composite fiber-expanded fabric according to claim 1, wherein the fiber basis weight of the fiber-expanded yarn is greater than or equal to 70 g/m ² and less than or equal to 100 g/m ² . The polymer composite fiber-expanded fabric according to claim 1, wherein the resin content of the fiber-expanded yarn is greater than or equal to 32% and less than or equal to 47%.

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