Preparation method of polystyrene ultrafine powder by use of acryloyl chloride-phenethylene copolymer azide modified carbon nano tube as antistatic agent

A technology of styrene copolymer and nitriding acryloyl chloride is applied in the fields of thermal conductivity and antistatic, which can solve the problems of increasing defects and destroying the aspect ratio of carbon nanotubes, and achieves the effect of good antistatic performance.

Active Publication Date: 2015-11-18
河北五洲开元环保新材料有限公司
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  • Abstract
  • Description
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Problems solved by technology

[0006] The traditional modification of carbon nanotubes is mostly achieved through the acidification of carbon nanotubes, and the acidification of carbon nanotubes will destroy the aspect ratio of carbon nanotubes and increase defects, which is not conducive to the formation of effective conductive networks in polymer materials.

Method used

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  • Preparation method of polystyrene ultrafine powder by use of acryloyl chloride-phenethylene copolymer azide modified carbon nano tube as antistatic agent

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Embodiment 1

[0023] (1) Preparation of acryloyl chloride-styrene copolymer: Weigh 250 mg of AIBN, 27 mL of 1,4-dioxane and 12.5 mL of styrene into a dry polymerization bottle, then inject 1 mL of acryloyl chloride with a syringe, and stir magnetically at room temperature After 10 minutes, the temperature was raised to 60° C. and stirred for 24 hours to obtain a light yellow solution of acryloyl chloride-styrene copolymer.

[0024] (2) Preparation of azide acryloyl chloride-styrene copolymer: Dissolve 2.5 g of the acryloyl chloride-styrene copolymer obtained by the reaction in step (1) in 16 mL of acetone, and then add 2.5 mL of 10% azide by mass fraction. Aqueous sodium nitride solution is added dropwise, and the reaction is carried out in an ice bath for 5 hours. After the reaction is completed, acetone, water and sodium chloride are removed to obtain a copolymer of azide acryloyl chloride-styrene.

[0025] (3) Grafting modification of carbon nanotubes: 23 mg of multi-walled carbon nanotu...

Embodiment 2

[0028] (1) Preparation of acryloyl chloride-styrene copolymer: Weigh 250 mg of AIBN, 27 mL of 1,4-dioxane and 12.5 mL of styrene into a dry polymerization bottle, then inject 1 mL of acryloyl chloride with a syringe, and stir magnetically at room temperature After 10 minutes, the temperature was raised to 60° C. and stirred for 24 hours to obtain a light yellow solution of acryloyl chloride-styrene copolymer.

[0029] (2) Preparation of azide acryloyl chloride-styrene copolymer: Dissolve 2.5 g of the acryloyl chloride-styrene copolymer obtained by the reaction in step (1) in 16 mL of acetone, and then add 2.5 mL of 10% azide by mass fraction. Aqueous sodium nitride solution is added dropwise, and the reaction is carried out in an ice bath for 5 hours. After the reaction is completed, acetone, water and sodium chloride are removed to obtain a copolymer of azide acryloyl chloride-styrene.

[0030] (3) Grafting modification of carbon nanotubes: 23 mg of multi-walled carbon nanotu...

Embodiment 3

[0033] (1) Preparation of acryloyl chloride-styrene copolymer: Weigh 250 mg of AIBN, 27 mL of 1,4-dioxane and 12.5 mL of styrene into a dry polymerization bottle, then inject 1 mL of acryloyl chloride with a syringe, and stir magnetically at room temperature After 10 minutes, the temperature was raised to 60° C. and stirred for 24 hours to obtain a light yellow solution of acryloyl chloride-styrene copolymer.

[0034] (2) Preparation of azide acryloyl chloride-styrene copolymer: Dissolve 2.5 g of the acryloyl chloride-styrene copolymer obtained by the reaction in step (1) in 16 mL of acetone, and then add 2.5 mL of 10% azide by mass fraction. Aqueous sodium nitride solution is added dropwise, and the reaction is carried out in an ice bath for 5 hours. After the reaction is completed, acetone, water and sodium chloride are removed to obtain a copolymer of azide acryloyl chloride-styrene.

[0035] (3) Grafting modification of carbon nanotubes: 23 mg of multi-walled carbon nanotube...

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Abstract

A preparation method of polystyrene ultrafine powder by use of acryloyl chloride-phenethylene copolymer azide modified carbon nano tube as an antistatic agent belongs to the field of heat-conducting antistatic modified engineering plastics. The preparation method comprises the following steps: preparing an acryloyl chloride-phenethylene copolymer at first; then preparing an acryloyl chloride-phenethylene copolymer azide through reaction between the acyl chloride bond and sodium azide; after that, preparing a polystyrene-encapsulated modified carbon nano tube through reaction between the azide group and a carbon nano tube; finally, enabling the polystyrene-encapsulated modified carbon nano tube to participate in suspension polymerization of phenethylene to synthesize the heat-conducting antistatic polystyrene ultrafine powder. The surface of the modified carbon nano tube contains polystyrene, so that the dispersity of the carbon nano tube in a styrene monomer is enhanced. The prepared polystyrene ultrafine powder has heat-conducting and antistatic property and can be used for preparing heat-conducting antistatic 3D printing products.

Description

technical field [0001] The invention relates to a carbon nanotube modified by azide acryloyl chloride-styrene copolymer as a heat-conducting and anti-static agent, and a polystyrene ultrafine powder is prepared by suspension polymerization, belonging to the field of heat-conducting and anti-static. Background technique [0002] 3D printing is a technology that manufactures three-dimensional products by adding materials layer by layer through 3D printing equipment according to the designed 3D model. This layer-by-layer forming technology, also known as additive manufacturing, is a type of rapid prototyping technology and is known as the core technology of the "third industrial revolution". Compared with traditional manufacturing technology, it has the advantages of saving materials, no need for molds, and simple process. 3D printing technology has been applied in new product development, rapid single and small batch parts manufacturing, complex shape parts manufacturing, mol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F112/08C08K9/04C08K7/24C08F212/08C08F8/30
Inventor 邹威杜中杰张晨张敏励杭泉
Owner 河北五洲开元环保新材料有限公司
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