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Polyphenylene sulfide composite non-woven fabric as well as preparation method and application thereof

A polyphenylene sulfide, non-woven technology, applied in melt spinning, textile and papermaking, conjugated synthetic polymer rayon, etc. Good wettability, simple and convenient preparation

Pending Publication Date: 2021-06-25
上海碳纤维复合材料创新研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims at the problem that polyphenylene sulfide, a resin commonly used in thermoplastic composite materials, is brittle and difficult to infiltrate carbon fibers in the form of a film, and provides a polyphenylene sulfide composite non-woven fabric and its preparation method and application, and obtains a specific surface area Polyphenylene sulfide composite non-woven fabric with high fracture toughness

Method used

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  • Polyphenylene sulfide composite non-woven fabric as well as preparation method and application thereof
  • Polyphenylene sulfide composite non-woven fabric as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides a preparation method of polyphenylene sulfide composite non-woven fabric, the steps are as follows:

[0035] (1) According to the following components and ingredients: 60% of polyphenylene sulfide, 30% of dried polyether sulfone, and 10% of dried E51 epoxy resin. The drying condition of the polyethersulfone is: drying at 120-140° C. for 4-6 hours; the drying condition of the epoxy resin is: drying at 60-80° C. for 1-2 hours.

[0036] (2) The ingredients in step (1) are uniformly mixed by a high-speed mixing mixer; the speed of the high-speed mixing mixer is 10000r / min.

[0037] (3) Extrude the above-mentioned high-speed mixed mixture through twin-screws. The temperature of each zone of the twin-screws is 120°C in the feed section, 285°C in the compression section, 290°C in the melting section, and 295°C in the metering section. Melt spinning was then performed through a spin pack with a melt spinning temperature of 300°C.

[0038] (4) After th...

Embodiment 2

[0050] This embodiment provides a preparation method of polyphenylene sulfide composite non-woven fabric, the steps are as follows:

[0051] (1) According to the following components and ingredients: 60% of polyphenylene sulfide, 25% of dried polyethersulfone, and 15% of dried E20 epoxy resin. The drying condition of the polyethersulfone is: drying at 120-140° C. for 4-6 hours; the drying condition of the epoxy resin is: drying at 60-80° C. for 1-2 hours.

[0052] (2) The ingredients in step (1) are uniformly mixed by a high-speed mixing mixer; the speed of the high-speed mixing mixer is 12500r / min.

[0053] (3) The above-mentioned high-speed mixed mixture is extruded through twin-screws. The temperature of each zone of the twin-screws is 100°C in the feed section, 275°C in the compression section, 280°C in the melting section, and 285°C in the metering section. Melt spinning was then performed through a spin pack with a melt spinning temperature of 290°C.

[0054] (4) After...

Embodiment 3

[0066] This embodiment provides a preparation method of polyphenylene sulfide composite non-woven fabric, the steps are as follows:

[0067] (1) According to the following components and ingredients: 70% of polyphenylene sulfide, 10% of dried polyethersulfone, and 20% of dried E44 epoxy resin. The drying condition of the polyethersulfone is: drying at 120-140° C. for 4-6 hours; the drying condition of the epoxy resin is: drying at 60-80° C. for 1-2 hours.

[0068] (2) The ingredients in step (1) are uniformly mixed by a high-speed mixing mixer; the speed of the high-speed mixing mixer is 11000r / min.

[0069] (3) The above-mentioned high-speed mixed mixture is extruded through twin-screws. The temperature of each zone of the twin-screws is 100°C in the feed section, 260°C in the compression section, 265°C in the melting section, and 270°C in the metering section. Melt spinning was then carried out through a spin pack with a melt spinning temperature of 275°C.

[0070] (4) Aft...

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Abstract

The invention relates to a polyphenylene sulfide composite non-woven fabric as well as a preparation method and application thereof, and belongs to the technical field of carbon fiber reinforced polyphenylene sulfide composite materials. The preparation method comprises the following steps of mixing polyphenylene sulfide, polyethersulfone and epoxy resin to prepare composite fibers, arranging the composite fibers into a net-shaped structure by using a winding machine, and then forming a PPS composite non-woven fabric which can be laid on the surface of the carbon fibers through setting. The preparation method has the beneficial effects that the epoxy resin can effectively improve the PPS / PES compatibility and reduce the PPS / PES spinning temperature in the early spinning process, the fracture toughness of the mixed thermoplastic resin is improved, the epoxy resin can be separated out in the later setting and net forming process, the heat resistance of the final thermoplastic composite material is not influenced, and the specific surface area of the prepared polyphenylene sulfide composite non-woven fabric is far higher than that of a polyphenylene sulfide film, so that carbon fibers can be rapidly infiltrated more easily in the compression molding process of a thermoplastic composite material.

Description

technical field [0001] The present invention relates to the technical field of composite materials, in particular to a polyphenylene sulfide composite non-woven fabric and its preparation method and application, in particular to a polyphenylene sulfide composite non-woven fabric for the preparation of high-toughness thermoplastic carbon fiber composite materials and its preparation method. Background technique [0002] Fiber-reinforced resin-based composites are increasingly used in the aviation field due to their excellent properties such as light weight and high strength. According to different substrates, it can be divided into thermosetting resin-based composite materials and thermoplastic resin-based composite materials. Compared with thermosetting composite materials, thermoplastic composite materials have the advantages of short molding cycle, no storage time limit for raw materials, and recyclability. Carbon fiber reinforced polyphenylene sulfide Ether-based composi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H3/005D04H3/073D01D5/08D01F8/16D01D7/00D06M13/127D06M13/144D06M101/30
CPCD04H3/005D04H3/073D01D5/08D01D7/00D06M13/127D06M13/144D01F8/16D06M2101/30
Inventor 程超杨青刁春霞余木火吕玥蒽梁昀翔丁小马王士杰熊风王硕
Owner 上海碳纤维复合材料创新研究院有限公司
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