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Polyphenylene sulfide/carbon fiber cospun fabric and mold pressing molding method thereof

A polyphenylene sulfide fiber and polyphenylene sulfide technology are applied in the fields of polyphenylene sulfide/carbon fiber co-spun fabric and its molding, co-spun fabric and its preparation, which can solve the problem that the uniformity of PPS powder is not easy to control, and the mold is difficult to control. It takes a long time to heat and the production efficiency of the product is not high. It can achieve excellent fire and flame retardant properties, improve the effect of energy saving and emission reduction, and the effect of simple molding process.

Inactive Publication Date: 2015-06-03
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technical defects of the above patents are that the uniformity of PPS powder in the product is not easy to control, and it takes a long time to heat the mold, and the production efficiency of the product is not high, which is not conducive to reducing the production cost

Method used

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  • Polyphenylene sulfide/carbon fiber cospun fabric and mold pressing molding method thereof
  • Polyphenylene sulfide/carbon fiber cospun fabric and mold pressing molding method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] like figure 1 As shown, a polyphenylene sulfide / carbon fiber co-spun fabric, the co-spun fabric is a plain co-spun fabric, which is woven from warp woven fiber bundles and weft woven fiber bundles, and the warp woven fiber bundles are composed of a plurality of warp Carbon fiber bundles 1 and warp polyphenylene sulfide fiber bundles 2 are combined in pairs, and weft woven fiber bundles are composed of multiple weft carbon fiber bundles 3 and weft polyphenylene sulfide fiber bundles 4. .

[0035] In the present embodiment, the quantity ratio of the warp direction carbon fiber bundle 1 and the warp direction polyphenylene sulfide fiber bundle 2 in the warp direction weaving fiber bundle is 1:2, and the weft direction carbon fiber bundle 3 in the weft direction weaving fiber bundle and the weft direction The number ratio of the polyphenylene sulfide fiber bundles 4 is also 1:2. Among them, the warp direction carbon fiber bundle 1 and the weft direction carbon fiber bundl...

Embodiment 2

[0047] The polyphenylene sulfide / carbon fiber co-spun fabric in this embodiment is a plain co-spun fabric, which is woven from warp-knitted fiber bundles and weft-knitted fiber bundles, and the warp-knitted fiber bundles are composed of multiple warp-wise carbon fiber bundles The polyphenylene sulfide fiber bundles 2 are combined in pairs, and the weft woven fiber bundles are formed by combining a plurality of weft carbon fiber bundles 3 and weft polyphenylene sulfide fiber bundles 4 in pairs.

[0048] In the present embodiment, the quantity ratio of the warp direction carbon fiber bundle 1 and the warp direction polyphenylene sulfide fiber bundle 2 in the warp direction weaving fiber bundle is 1:2, and the weft direction carbon fiber bundle 3 in the weft direction weaving fiber bundle and the weft direction The number ratio of the polyphenylene sulfide fiber bundles 4 is also 1:2. Among them, the warp direction carbon fiber bundle 1 and the weft direction carbon fiber bundle ...

Embodiment 3

[0056] The polyphenylene sulfide / carbon fiber co-spun fabric in this embodiment is a plain co-spun fabric, which is woven from warp-knitted fiber bundles and weft-knitted fiber bundles, and the warp-knitted fiber bundles are composed of multiple warp-wise carbon fiber bundles The polyphenylene sulfide fiber bundles 2 are combined in pairs, and the weft woven fiber bundles are formed by combining a plurality of weft carbon fiber bundles 3 and weft polyphenylene sulfide fiber bundles 4 in pairs.

[0057] In the present embodiment, the quantity ratio of the warp direction carbon fiber bundle 1 and the warp direction polyphenylene sulfide fiber bundle 2 in the warp direction weaving fiber bundle is 1:2, and the weft direction carbon fiber bundle 3 in the weft direction weaving fiber bundle and the weft direction The number ratio of the polyphenylene sulfide fiber bundles 4 is also 1:2. Among them, the warp direction carbon fiber bundle 1 and the weft direction carbon fiber bundle ...

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Abstract

The invention relates to a polyphenylene sulfide / carbon fiber cospun fabric. The cospun fabric is a plain cospun fabric and is braided of warp-wise braided fiber bundles and weft-wise braided fiber bundles, wherein the warp-wise braided fiber bundles are formed by combining a plurality of warp-wise carbon fiber bundles and warp-wise polyphenylene sulfide fiber bundles alternately in pair; the weft-wise braided fiber bundles are formed by combining a plurality of weft-wise carbon fiber bundles and weft-wise polyphenylene sulfide fiber bundles alternately in pair; when mold pressing molding is carried out, the cospun fabric is cut and laid in advance, and then is pre-heated; the cospun fabric is put into a mold pressing mold with a pre-heating temperature lower than a PPS softening point to be pressurized; the carbon fibers and a PPS cospun blank are subjected to heat preservation and pressure keeping to be tightly combined and molded under the effect of pressure; and then the mold pressing mold is cooled to be lower than the PPS softening point and then is cured to obtain a product. Compared with the prior art, the mold pressing molding process is simple, the production period is short, the production efficiency is high and the cost can be effectively reduced; and the distribution uniformity of the carbon fibers in the cured product is good, and the product has good inflaming retarding property, high strength and high modulus.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and relates to a co-spun fabric and a preparation method thereof, in particular to a polyphenylene sulfide / carbon fiber co-spun fabric and a molding method thereof. Background technique [0002] Polyphenylene sulfide, the English name is Phenylene sulfide, referred to as PPS, is a thermoplastic special engineering plastic with excellent comprehensive performance. In the macromolecular structure of polyphenylene sulfide resin, the sulfur atom is connected to the para-position of the benzene ring to form a rigid macromolecular polymer main chain, with high crystallinity and a density of 1.34g / cm 3 , with a melting point of 285°C and a decomposition temperature greater than 400°C, was first successfully developed by Philips Petroleum Co., Ltd. of the United States, and is a good high temperature resistant material. PPS fiber prepared from polyphenylene sulfide resin has strong rigidity,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/22B29C70/46
CPCB29C70/22B29C70/46
Inventor 蒋凯雁何大海莫凡何国球胡正飞刘晓山
Owner TONGJI UNIV
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