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Fiber fabric reinforced polyarylether sulfone composite material and preparation method thereof

A technology of fiber fabric and polyarylethersulfone, which is applied in the field of polymer composite materials, can solve problems such as infirmity, increased fiber wool rate, and low production efficiency, and achieve good thermal properties, good mechanical properties, and excellent mechanical properties Effect

Active Publication Date: 2021-11-16
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the woven fiber fabric is not strong when no sizing agent is added, and it is prone to slip deformation under pressure, destroying the original layering method and affecting the mechanical properties of the composite material.
[0003] At present, the widely used high-performance thermoplastic resins are mainly PES, PEI, PPS, PEEK, etc., and the fiber fabric is impregnated by melting method, especially when the fabric surface density is high, it is difficult for the resin to infiltrate the internal fibers, and the fiber cloth needs to be melted for impregnation. High temperature treatment in advance to remove the fiber sizing agent, which will increase the fiber hair ratio and damage the fiber performance
Compared with the melting method, the traditional solution method has more advantages in impregnating fiber fabrics, with higher technical maturity and lower manufacturing cost, but the solvents that can dissolve thermoplastic resins are generally chloroform and N,N-dimethylformamide. Volatile or hygroscopic polar solvents, with the continuous consumption of the resin glue, the concentration of the remaining resin glue is difficult to keep consistent with the initial stage, which will affect the overall stability of the composite material preparation process
Patent ZL201710226765.0 discloses fiber fabric reinforced phthalonitrile blended resin-based composite laminates containing heteronaphthyl biphenyl structure and its preparation method. The organic solvent is NMP, DMAC and other hygroscopic solvents. The drying channel temperature is 100~ 200 ℃, drying time 8 ~ 12h to remove the solvent, increase the time cost, low production efficiency, difficult to mass production

Method used

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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  • Fiber fabric reinforced polyarylether sulfone composite material and preparation method thereof
  • Fiber fabric reinforced polyarylether sulfone composite material and preparation method thereof
  • Fiber fabric reinforced polyarylether sulfone composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Dissolve polyaryl ether sulfone resin in benzyl alcohol, configure a solution with a mass concentration of 20%, pour it into the dipping tank, and make the surface density 380g / m 2 , Basalt fiber cloth with a width of 1m is dipped in a glue tank for 6 minutes, the excess glue is removed by a scraping roller, and the solvent is removed in a hot oven at 180°C / 15min+220°C / 15min+250°C / 20min to obtain a prepreg sheet. Cut the prepreg sheet according to the size of the mold, stack 6 layers into the mold, heat up the hot press slowly to 350°C, and hold the pressure at 10MPa for 20 minutes to obtain fiber fabric reinforced polyarylethersulfone composite laminates, fiber fabric The volume fraction is 65%. The tensile strength of the fiber fabric reinforced polyarylethersulfone composite is 683MPa (test standard GB / T 3354-2014), T g = 246°C. The structure of polyarylethersulfone resin is as follows: m=0.6, n=0.4

[0021]

Embodiment 2

[0023] Dissolve polyaryl ether sulfone resin in acetophenone, configure a solution with a mass concentration of 35%, pour it into the dipping tank, and adjust the surface density to 260g / m 2 1. The glass fiber cloth with a width of 80cm is dipped in the glue tank for 10min, the excess glue is removed by the scraping roller, and the solvent is removed in the heating tunnel at 180°C / 10min+210°C / 10min+250°C / 20min to obtain the prepreg sheet. Cut the prepreg sheet according to the size of the mold, stack 10 layers into the mold, heat up the hot press slowly to 360°C, and hold the pressure at 8MPa for 30 minutes to obtain a fiber fabric reinforced polyarylethersulfone composite laminate, the volume of the fiber fabric The score is 40%. The tensile strength of the fiber fabric reinforced polyarylethersulfone composite is 479MPa (test standard GB / T 3354-2014), T g = 251°C. The structure of polyarylethersulfone resin is as follows: m=0.5, n=0.5

[0024]

Embodiment 3

[0026] Dissolve polyaryl ether sulfone resin in cyclohexanone, configure a solution with a mass concentration of 25%, pour it into the dipping tank, and adjust the surface density to 160g / m 2 1. A carbon fiber cloth with a width of 1m is dipped in a glue tank for 8 minutes, the excess glue is removed by a scraping roller, and the solvent is removed in a heating tunnel at 160°C / 10min+200°C / 10min+250°C / 10min to obtain a prepreg sheet. Cut the prepreg sheet according to the size of the mold, stack 16 layers into the mold, heat up the hot press slowly to 380°C, and hold the pressure at 15MPa for 40 minutes to obtain a fiber fabric reinforced polyarylethersulfone composite laminate, the volume of the fiber fabric The score is 60%. The tensile strength of the fiber fabric reinforced polyarylethersulfone composite material is 958MPa (test standard GB / T 3354-2014), T g = 249°C. The structure of polyarylethersulfone resin is as follows: m=0.3, n=0.7

[0027]

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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Abstract

The invention discloses a fiber fabric reinforced polyarylether sulfone composite material and a preparation method thereof, and belongs to the technical field of polymer composite materials. According to the invention, the novel polyarylether sulfone resin provided by the invention can be dissolved in alcohol and ketone solvents to prepare a resin solution, fiber fabrics are infiltrated by a solution method to prepare a composite material, the technical problem that matrix resin cannot fully infiltrate fibers is solved, the solvent is high in boiling point and slightly soluble or insoluble in water, the problems that a traditional polar solvent is prone to moisture absorption and volatilization and the like are solved, the concentration of the resin glue solution is stable at the process temperature, the uniformity of fiber gluing is guaranteed, the solvent is removed through a hot drying channel to obtain prepreg sheets, and the prepreg sheets are stacked in a layering mode and subjected to high-temperature mold pressing to obtain a composite piece; and the polyarylether sulfone composite material provided by the invention is low in manufacturing cost, good in mechanical property, high in dimensional stability and suitable for popularization and application in the field of civil composite materials.

Description

technical field [0001] The invention discloses a fiber fabric reinforced polyaryl ether sulfone composite material and a preparation method thereof, belonging to the technical field of polymer composite materials. Background technique [0002] Fiber-reinforced thermoplastic composites have the characteristics of specific strength, high specific stiffness, multiple rapid prototyping, corrosion resistance, long storage time of prepreg, and recyclability. They have been widely used in modern high-tech fields such as aerospace. In recent years, To gradually promote to the civilian field. The layering method of the fiber fabric is highly designable, can reduce the number of laying times, save costs, and has good mechanical properties. The composite material is more suitable for the field of civilian products. However, the woven fiber fabric is not firm when no sizing agent is added, and it is prone to slip deformation under pressure, destroying the original layering method and a...

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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IPC IPC(8): C08L81/06C08L77/10C08K7/10C08K7/14C08K7/06C08J5/04C08J5/24
CPCC08J5/043C08J5/042C08J5/24C08J2381/06C08J2477/10C08K7/10C08K7/14C08K7/06
Inventor 周光远王红华张兴迪王志鹏
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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