CN218291242U

CN218291242U - Polyphenylene sulfide composite material prefabricated body

Info

Publication number: CN218291242U
Application number: CN202120508888.5U
Authority: CN
Inventors: 水锋; 张守玉; 陈同海; 杨杰; 王孝军
Original assignee: Nanjing Tesu Composite Material Co ltd
Current assignee: Nanjing Tesu Composite Material Co ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2023-01-13
Anticipated expiration: 2031-03-10

Abstract

A polyphenylene sulfide composite material prefabricated body is a three-layer structure fabric and is formed by weaving four systems of warp yarns and three systems of weft yarns. The upper-layer warp yarns and the upper-layer weft yarns are interwoven to form an upper-layer fabric, the inner-layer warp yarns and the inner-layer weft yarns are interwoven to form an inner-layer fabric, the lower-layer warp yarns and the lower-layer weft yarns are interwoven to form a lower-layer fabric, the binding warp yarns are intermittently interwoven in the upper-layer fabric, the inner-layer fabric and the lower-layer fabric, the upper-layer fabric, the inner-layer fabric and the lower-layer fabric are tightly connected into a whole, the upper-layer fabric and the lower-layer fabric are reinforced fiber yarn woven fabrics or reinforced fiber yarn and polyphenylene sulfide yarn mixed woven fabrics, the inner-layer fabric is a polyphenylene sulfide yarn fabric, and the binding warp yarns are reinforced fiber yarns. The utility model discloses a design of resin flow path in resin content, resin distribution and the course of working in the final products has been realized to prefabricated body organizational structure and reinforcing fiber and the fibrous overall arrangement design of base member, can obtain the great thickness and impregnate better prefabricated body-combined material.

Description

Polyphenylene sulfide composite material preform

Technical Field

The utility model belongs to the combined material field, concretely relates to polyphenylene sulfide combined material prefabricated part.

Background

Fiber reinforced thermoplastic composite materials have attracted more and more attention in recent years, compared with thermosetting composite materials, thermoplastic composite materials are fast in forming and recyclable, and especially special engineering plastic-based composite materials have higher temperature resistance and chemical corrosion resistance.

At present, special engineering plastics such as polyphenylene sulfide have high processing temperature and high resin viscosity, and are difficult to perform online dip forming by directly adopting reinforced fiber braided fabrics, so that on one hand, online traction can cause fabric deformation; on the other hand, the impregnation effect is poor and unstable, which causes the resin content of the composite material to fluctuate greatly and is difficult to control, and more seriously, the poor impregnation effect can greatly reduce the mechanical property of the composite material, and the phenomena of easy delamination and the like can also occur.

Disclosure of Invention

In order to solve the problem, the utility model provides a polyphenylene sulfide composite material preform utilizes this forming method, can solve the infiltration problem of high performance thermoplastic resin to the reinforcing fiber knitting, improves composite material's interlaminar strength, more accurate control resin content, specific technical scheme as follows:

the composite material prefabricated body is a three-layer structure fabric and is woven by four systems of warp yarns and three systems of weft yarns, wherein the four warp yarn systems consist of upper-layer warp yarns, inner-layer warp yarns, lower-layer warp yarns and binding warp yarns; the three weft systems comprise upper weft yarns, inner weft yarns and lower weft yarns, wherein the upper warp yarns and the upper weft yarns are interwoven to form an upper fabric layer, the inner warp yarns and the inner weft yarns are interwoven to form an inner fabric layer, the lower warp yarns and the lower weft yarns are interwoven to form a lower fabric layer, the binding warp yarns are intermittently interwoven to the upper fabric layer, the inner fabric layer and the lower fabric layer, and the upper fabric layer, the inner fabric layer and the lower fabric layer are tightly connected into a whole; the upper fabric and the lower fabric are reinforced fiber yarn woven fabrics or reinforced fiber yarn and polyphenylene sulfide yarn mixed woven fabrics, the inner fabric is a polyphenylene sulfide yarn fabric, and the binding warp yarns are reinforced fiber yarns.

Preferably, the reinforcing fiber is at least one of carbon fiber, glass fiber, quartz fiber, basalt fiber, and mineral fiber.

Preferably, the same binding warp yarn is continuously interwoven in the upper, inner and lower fabrics.

Preferably, the fabric preform has a reinforcing fiber mass content of 30% to 65%.

Preferably, the heating temperature for the hot press molding of the fabric preform is 310 to 330 ℃.

Furthermore, the number of layers of the fabric preform can be four or more, and the polyphenylene sulfide base fabric layer is not positioned on the upper layer or the lower layer.

Furthermore, the polyphenylene sulfide composite material preform can also be used for molding other fiber reinforced thermoplastic composite materials.

The utility model has the advantages that:

(1) The preparation of the three-dimensional structure of the special engineering plastic-based continuous fiber reinforced composite material is realized; the designability and stability of the proportion of the resin and the fiber are ensured;

(2) The PPS-based thermoplastic composite material precursor with better interlayer bonding strength can be obtained by the technology of the invention;

(3) Through the organizational structure of the preform and the layout design of the reinforcing fibers and the matrix fibers, the resin content and the resin distribution in a final product and the resin flow path in the processing process are designed, and a preform-composite material with large thickness and good impregnation can be obtained;

(4) After the inner layer resin is melted, the resin permeates into the upper layer and the lower layer under pressure, so that the impregnation effect on the reinforcing fibers of the upper layer and the lower layer is enhanced; the upper layer and the layer of fabric are mixed woven fabrics, a certain resin-rich layer is provided by adding the resin fiber, and the apparent quality of the product after molding is good.

Drawings

FIG. 1 is a sectional view of a polyphenylene sulfide-based composite preform.

Labeled in the figure as: 1: an upper fabric layer; 2: an inner layer fabric; 3: a lower layer fabric; 1.1: an upper layer warp yarn; 1.2: an upper layer weft yarn; 2.1: an inner layer warp yarn; 2.2: the inner layer weft yarns; 3.1: a lower layer of warp yarns; 3.2: a lower layer weft yarn; 4.1: the warp yarns are bound.

Detailed Description

The present invention will be further described with reference to the following embodiment, which is illustrated in fig. 1, but the present invention is not limited to the following embodiment.

The polyphenylene sulfide composite material prefabricated body is characterized in that the composite material is formed by hot press molding of a fabric prefabricated body, the fabric prefabricated body is a three-layer structure fabric, and the fabric prefabricated body is woven by four systems of warp yarns and three systems of weft yarns. Wherein, the four warp systems consist of upper layer warp 1.1, inner layer warp 2.1, lower layer warp 3.1 and binding warp 4.1; the three weft yarn systems consist of an upper layer weft yarn 1.2, an inner layer weft yarn 2.2 and a lower layer weft yarn 3.2; the upper-layer warp 1.1 and the upper-layer weft 1.2 are interwoven to form an upper-layer fabric 1, the inner-layer warp 2.1 and the inner-layer weft 2.2 are interwoven to form an inner-layer fabric 2, the lower-layer warp 3.1 and the lower-layer weft 3.2 are interwoven to form a lower-layer fabric 3, the binding warp 4.1 is intermittently interwoven to the upper-layer fabric 1, the inner-layer fabric 2 and the lower-layer fabric 3, and the upper-layer fabric 1, the inner-layer fabric 2 and the lower-layer fabric 3 are tightly connected into a whole.

The upper layer fabric 1 and the lower layer fabric 3 are reinforced fiber yarn woven fabrics or reinforced fiber yarn and polyphenylene sulfide yarn mixed woven fabrics, the inner layer fabric 2 is a polyphenylene sulfide yarn fabric, and the binding warp 4.1 is reinforced fiber yarn.

In this embodiment, the reinforcing fiber of the fabric preform is 3k carbon fiber yarn, the weave structures of the upper fabric 1, the lower fabric 2 and the lower fabric 3 are plain weave structures, the upper fabric 1 and the lower fabric 3 are carbon fiber yarn and polyphenylene sulfide yarn mixed woven fabrics, the inner fabric 2 is polyphenylene sulfide yarn woven fabric, a double-warp-beam rapier loom is used for weaving, the width of the fabric preform is 1280mm, and the gram weight is 350g/m ² The mass content of the reinforcing fiber is 43 percent.

Cutting the fabric preform off the machine to obtain a 500mm x 500mm square fabric, placing the square fabric in a pretreated square mold, and performing compression molding on the carbon fiber reinforced polyphenylene sulfide composite material plate under the conditions of 320 ℃ and 5MPa pressure, wherein the plate has good apparent quality, the reinforced fibers are uniformly distributed, the orientation degree is high, and the product performance parameters are as follows.

TABLE 1 Main parameters of the carbon fiber reinforced polyphenylene sulfide composite material obtained in the example

Claims

1. The polyphenylene sulfide composite material prefabricated body is characterized in that the composite material prefabricated body is a three-layer structure fabric and is woven by four systems of warp yarns and three systems of weft yarns, wherein the four warp yarn systems consist of upper-layer warp yarns, inner-layer warp yarns, lower-layer warp yarns and binding warp yarns; the three weft systems comprise upper weft yarns, inner weft yarns and lower weft yarns, wherein the upper warp yarns and the upper weft yarns are interwoven to form an upper fabric layer, the inner warp yarns and the inner weft yarns are interwoven to form an inner fabric layer, the lower warp yarns and the lower weft yarns are interwoven to form a lower fabric layer, the binding warp yarns are intermittently interwoven to the upper fabric layer, the inner fabric layer and the lower fabric layer, and the upper fabric layer, the inner fabric layer and the lower fabric layer are tightly connected into a whole; the upper layer fabric and the lower layer fabric are reinforced fiber yarn woven fabrics or reinforced fiber yarn and polyphenylene sulfide yarn mixed woven fabrics, the inner layer fabric is a polyphenylene sulfide yarn woven fabric, and the binding warp yarns are reinforced fiber yarns.

2. The polyphenylene sulfide composite preform of claim 1, wherein the reinforcing fiber is one of carbon fiber, glass fiber, quartz fiber, and basalt fiber.

3. The polyphenylene sulfide composite preform of claim 1, wherein the same binder warp yarn is continuously interwoven in the upper, inner and lower fabrics.