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Nylon 12 composite material for MJR3D printing and preparation method thereof

A composite material and nylon technology, applied in the field of additive manufacturing, can solve the shortage of polymer 3D printing materials and other problems

Active Publication Date: 2022-04-05
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the shortage of existing polymer 3D printing materials, etc., to provide a new type of nylon 12 composite material for MJR 3D printing and its application

Method used

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  • Nylon 12 composite material for MJR3D printing and preparation method thereof
  • Nylon 12 composite material for MJR3D printing and preparation method thereof
  • Nylon 12 composite material for MJR3D printing and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A preparation of a new type of nylon 12 composite material for MJR 3D printing, the specific process is as follows:

[0033] (1) PA12 powder for surface nickel activation

[0034] Add 20 ml of KH550, 10 ml of deionized water and 30 ml of ethanol into a beaker, and mix at 40°C for 1 hour at a stirring speed of 400 rpm to obtain a KH550 solution. Add 5 g of PA12 powder and 100 ml of ethanol to the KH550 solution, stir slowly in a water bath at 60 °C for 0.5 h, and then rinse twice with deionized water and ethanol to obtain KH550 surface-modified nylon 12 powder.

[0035] Then add 3g of nickel acetate particles into 100ml of deionized water to form a 30g / ml nickel acetate solution, then add the above-mentioned surface-modified nylon 12 powder into the 30g / ml nickel acetate solution, transfer to a 60°C water bath and stir at 400rpm Speed ​​mixing, the reaction time is 1h, and then the obtained product is washed with deionized water and ethanol, and then vacuum-dried to obt...

Embodiment 2

[0041] A preparation of a new type of nylon 12 composite material for MJR 3D printing, the specific process is as follows:

[0042] (1) PA12 powder for surface nickel activation

[0043] Add 20 ml of KH550, 10 ml of deionized water and 30 ml of ethanol into a beaker, and mix at 40°C for 1 hour at a stirring speed of 400 rpm to obtain a KH550 solution. Add 5 g of PA12 powder and 100 ml of ethanol to the KH550 solution, stir slowly in a water bath at 60 °C for 0.5 h, and then rinse twice with deionized water and ethanol to obtain KH550 surface-modified nylon 12 powder.

[0044] Then add 3g of nickel acetate particles into 100ml of deionized water to form a 30g / ml nickel acetate solution, then add the above-mentioned surface-modified nylon 12 powder into the 30g / ml nickel acetate solution, transfer to a 60°C water bath and stir at 40rpm Speed ​​mixing, the reaction time is 1h, and then the obtained product is washed with deionized water and ethanol, and then vacuum-dried to obta...

Embodiment 3

[0050] A preparation of a new type of nylon 12 composite material for MJR 3D printing, the specific process is as follows:

[0051] (1) PA12 powder for surface nickel activation

[0052] Add 20 ml of KH550, 10 ml of deionized water and 30 ml of ethanol into a beaker, and mix at 40°C for 1 hour at a stirring speed of 400 rpm to obtain a KH550 solution. Add 5 g of PA12 powder and 100 ml of ethanol to the KH550 solution, stir slowly in a water bath at 60 °C for 0.5 h, and then rinse twice with deionized water and ethanol to obtain KH550 surface-modified nylon 12 powder.

[0053] Then add 3g of nickel acetate particles into 100ml of deionized water to form a 30g / ml nickel acetate solution, then add the above-mentioned surface-modified nylon 12 powder into the 30g / ml nickel acetate solution, transfer to a 60°C water bath and stir at 400rpm Speed ​​mixing, the reaction time is 1h, and then the obtained product is washed with deionized water and ethanol, and then vacuum-dried to obt...

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Abstract

The invention discloses a nylon 12 composite material for MJR3D printing and a preparation method thereof. The preparation method comprises the following steps: firstly, preparing Ni-activated PA12 powder; then carrying out chemical modification on polydopamine by using perfluorodecanethiol, and carrying out one-step surface fluorination on the nano aluminum particles to prepare a nano colloid Al (at) PF; and finally, the nano colloid Al (at) PF is activated through Ni, chemical adhesion is carried out on the surface of the PA12 powder, and the nylon 12 composite material for the MJR3D printing technology is successfully prepared. The PF (perfluorodecanethiol modified polydopamine) has excellent adhesive force and high fluoride content, so that the reaction component n-Al and the nylon 12 powder have good interfacial interaction, and the PF has great application prospects in the MJR3D printing process.

Description

technical field [0001] The invention belongs to the field of additive manufacturing, and in particular relates to a nylon 12 composite material used in (Multi Jet Reaction) MJR 3D printing and a preparation method thereof. Background technique [0002] 3D printing, also known as additive manufacturing, is a technology based on the three-dimensional CAD model data of the part, which is controlled by a computer throughout the process, and accumulates discrete (liquid, wire, powder) layer by layer technology to manufacture solid parts. Compared with traditional material removal (cutting) technology, 3D printing is a "bottom-up" material accumulation process. [0003] Affecting the advancement of 3D printing technology is mainly the application of materials. Although the most common market materials for 3D printing are ABS and PLA, they have disadvantages such as poor material printing performance, high printing temperature, and poor material fluidity. Multi Jet Reaction MJR 3D...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K5/098C08K9/10C08K3/08B33Y70/10
Inventor 郑玉婴陆祖辉
Owner FUZHOU UNIV
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