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Polyphenyl thioether composite material for 3D printing and preparation method thereof

A polyphenylene sulfide and 3D printing technology, applied in the field of composite materials, can solve the problems of 3D printing consumables such as rarity, limitation, and high melting temperature, and achieve the effects of easy promotion and application, low production cost, and simple preparation process

Inactive Publication Date: 2014-12-10
TAICANG BIQI NEW MATERIAL RES & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, 3D printing consumables with PPS as the main body are still rare, mainly because PPS has a high melting temperature, and it is easy to block the nozzle when it is melted and accumulated.
On the other hand, PPS is difficult to dissolve in conventional solvents, and it is not convenient to modify polymer materials.
3D printing technology cannot be promoted and applied on a large scale at present, mainly limited to 3D printing materials
At present, the types of materials used for 3D printing are still relatively small, which cannot meet the requirements of industrial applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Crush 40g of polyphenylene sulfide resin with a number average molecular weight of 10000-50000 into 100-120 mesh particles; under nitrogen atmosphere, dissolve 20g of N-vinylpyrrolidone in 30g of ethanol, add 1g of benzoyl peroxide, and Stand for 30 minutes, then sequentially add 4g terephthalic acid, 5g ethyl α-cyanoacrylate, stir at room temperature for 90 minutes, then add 40g polyphenylene sulfide particles, heat to 60°C, stir for 180 minutes, cool to room temperature, and obtain Polyphenylene sulfide composites for 3D printing.

[0024] The material is 3D printed at 40°C, and the density of the material after molding is 1.38g / cm 3 , the tensile strength is 119MPa, the flexural modulus is 3290MPa, and the shrinkage rate is 2.12%.

Embodiment 2

[0026] Crush 60g of polyphenylene sulfide resin with a number average molecular weight of 10000-50000 into 100-120 mesh particles; under nitrogen atmosphere, dissolve 5g of N-vinylpyrrolidone in 23g of ethanol, add 2g of benzoyl peroxide, and Stand for 60 minutes, then add 5g terephthalic acid and 5g ethyl α-cyanoacrylate successively, stir at room temperature for 120 minutes, then add 60g polyphenylene sulfide particles, heat to 80°C, stir for 240 minutes, cool to room temperature, and obtain Polyphenylene sulfide composites for 3D printing.

[0027] The material is 3D printed at 70°C, and the density of the material after molding is 1.33g / cm 3 , the tensile strength is 103MPa, the flexural modulus is 3170MPa, and the shrinkage rate is 1.19%.

Embodiment 3

[0029] Crush 48g of polyphenylene sulfide resin with a number average molecular weight of 10000-50000 into 100-120 mesh particles; under nitrogen atmosphere, dissolve 20g of N-vinylpyrrolidone in 10g of ethanol, add 1g of benzoyl peroxide, and Stand for 40 minutes, then sequentially add 1g terephthalic acid, 20g ethyl α-cyanoacrylate, stir at room temperature for 100 minutes, then add 48g polyphenylene sulfide particles, heat to 70°C, stir for 200 minutes, cool to room temperature, and obtain Polyphenylene sulfide composites for 3D printing.

[0030] The material is 3D printed at 75°C, and the density of the material after molding is 1.34g / cm 3 , the tensile strength is 115MPa, the flexural modulus is 3410MPa, and the shrinkage rate is 1.32%.

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Abstract

The invention provides a polyphenyl thioether composite material for 3D printing and a preparation method thereof. The preparation method comprises the following steps: dissolving N-vinyl-2-pyrrolidone in ethanol, adding benzoperoxide, standing at room temperature, sequentially adding terephthalic acid and ethyl alpha-cyanoacrylate, stirring at room temperature, adding polyphenyl thioether particles, heating while stirring, and cooling to room temperature, thereby obtaining the polyphenyl thioether composite material for 3D printing. The polyphenyl thioether composite material can be used for 3D printing within the temperature range of 40-70 DEG C, can not block the 3D printer injector, and overcomes the defect that the polyphenyl thioether consumable 3D printing needs to melt the high-molecular polymers under high-temperature conditions; and the preparation method has the advantages of simple technique and low production cost, is convenient for popularization and application, and enriches the varieties of the 3D printing consumables.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and relates to a polyphenylene sulfide composite material for 3D printing and a preparation method thereof. Background technique [0002] At present, the biggest obstacle to the development of 3D printing technology lies in the materials required for molding, mainly including powder and binder. From the working principle of 3D printing technology, it can be seen that the molding powder needs to have good material formability, high molding strength, small powder particle size, not easy to agglomerate, good rolling properties, appropriate density and porosity, and fast drying and hardening. Prototype materials that can be used are gypsum powder, starch, ceramic powder, metal powder, thermoplastic material or some other powder with suitable particle size. The binder used for printing head injection requires stable performance, long-term storage, no corrosion to the nozzle, low viscosit...

Claims

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Application Information

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IPC IPC(8): C08F283/00C08F220/34C08F226/10C08K5/092
Inventor 蓝碧健
Owner TAICANG BIQI NEW MATERIAL RES & DEV
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