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High-temperature-resistant nylon yarn material for 3D printing, preparation method thereof and method for performing 3D printing by applying same

A 3D printing, nylon filament technology, applied in the field of 3D printing, can solve the problems of poor bonding performance between printing layers, warping deformation of molded products, and high glass transition temperature, achieve low molding accuracy, improve shrinkage, warpage The effect of low degree of deformation

Active Publication Date: 2017-02-22
GUANGDONG SILVER AGE SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of these printing materials limit their application
PLA material is very brittle and not resistant to high temperature; ABS has poor solvent resistance, and printing is easy to warp; PC has a high glass transition temperature, resulting in poor bonding performance between printing layers and easy warping, and PC generally contains bisphenol A , and bisphenol A is a carcinogen; nylon has good mechanical properties, but when it is used as a 3D printing material, there are technical problems such as serious warping and deformation of molded products, poor dimensional stability and low thermal denaturation temperature, which cannot meet the needs of industrial applications for 3D printing. Printed product accuracy and application temperature requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A preparation method for high-temperature-resistant nylon filaments for 3D printing, comprising the steps of:

[0047] The raw materials were weighed according to the following parts by weight: 99 parts of nylon resin, 1 part of organically modified montmorillonite, 0.2 part of antioxidant 1098, 0.1 part of antioxidant 168, and 0.2 part of lubricant.

[0048] The nylon resin is PA6 resin.

[0049] The preparation method of the described organically modified montmorillonite comprises the steps of: first preparing a silane coupling agent solution, using ethanol mass fraction as an aqueous ethanol solution of 93%, adding the silane coupling agent while stirring to make the mass concentration of the silane coupling agent reach 1.5%, stand for hydrolysis for 8 minutes, and obtain a silane coupling agent solution; then add the silane coupling agent solution to the montmorillonite to be treated, stir evenly, put it in a ventilated place to dry naturally for 18 hours, and then ...

Embodiment 2

[0056] A preparation method for high-temperature-resistant nylon filaments for 3D printing, comprising the steps of:

[0057] The raw materials were weighed according to the following parts by weight: 97 parts of nylon resin, 3 parts of organically modified montmorillonite, 0.2 part of antioxidant 1098, 0.1 part of antioxidant 168, and 0.2 part of lubricant.

[0058] The nylon resin is PA6 resin.

[0059] The preparation method of the described organically modified montmorillonite comprises the steps of: first preparing a silane coupling agent solution, using ethanol mass fraction as an aqueous ethanol solution of 94%, adding the silane coupling agent while stirring to make the mass concentration of the silane coupling agent reach 1.8%, stand for hydrolysis for 9 minutes to obtain a silane coupling agent solution; then add the silane coupling agent solution to the montmorillonite to be treated, stir evenly, put it in a ventilated place to dry naturally for 22 hours, and then d...

Embodiment 3

[0066] A preparation method for high-temperature-resistant nylon filaments for 3D printing, comprising the steps of:

[0067] The raw materials were weighed according to the following parts by weight: 95 parts of nylon resin, 5 parts of organically modified montmorillonite, 0.2 part of antioxidant 1098, 0.1 part of antioxidant 168, and 0.2 part of lubricant.

[0068] The nylon resin is PA6 resin.

[0069] The preparation method of described organically modified montmorillonite comprises the steps of: first preparing a silane coupling agent solution, using ethanol mass fraction as an aqueous ethanol solution of 95%, adding the silane coupling agent while stirring to make the mass concentration of the silane coupling agent reach 2%, stand for hydrolysis for 10 minutes to obtain a silane coupling agent solution; then add the silane coupling agent solution to the montmorillonite to be treated, stir evenly, put it in a ventilated place to dry naturally for 24 hours, and then dry it...

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Abstract

The invention relates to the technical field of 3D printing, in particular to a high-temperature-resistant nylon yarn material for 3D printing, a preparation method thereof and a method for performing 3D printing by applying the same. The high-temperature-resistant nylon yarn material contains the following raw materials in parts by weight: 90-100 parts of nylon resin, 1-10 parts of a reinforcing agent, 0.3-0.6 part of an antioxidant, and 0.1-0.3 part of a lubricant, wherein the reinforcing agent is organic modified montmorillonite. According to the invention, the high-strength nylon resin is used as a base material, the organic modified montmorillonite, the antioxidant and the lubricant are used for performing physical modification on the nylon resin, and the synergistic action among the components with different proportions is adjusted to improve the contractility and increase the thermal denaturation temperature of the nylon resin, so that the obtained high-temperature-resistant nylon yarn material for 3D printing is high in strength, low in shrinkage rate, low in warping deformation degree, and low in forming accuracy, and is high-temperature-resistant, and a support can be removed easily.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a high-temperature-resistant nylon filament for 3D printing, a preparation method thereof, and a 3D printing method using the same. Background technique [0002] 3D printing technology is a general term for technologies that directly drive 3D CAD models and quickly manufacture 3D physical entities of arbitrary complex shapes according to data instructions. It is a high-tech integrating computer technology, numerical control technology, laser technology, material science and bioengineering technology. 3D printing technology usually starts from the three-dimensional geometric CAD model of the part, and discretizes the model into a series of ordered two-dimensional units according to certain rules according to the process requirements, which is different from the traditional mechanical cold processing manufacturing method. 3D printing technology first discretely layered the mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08K13/06C08K9/06C08K3/34C08K5/098C08K5/103B29C47/92B29C64/118B29C64/393B33Y50/02B33Y70/00B33Y80/00B29C48/92
CPCB29C48/05B29C48/92B29C2948/92619B29C2948/92704B33Y50/02B33Y70/00B33Y80/00C08K3/346C08K5/098C08K5/103C08K9/06C08K13/06C08K2201/011C08L2201/08C08L77/02C08L77/06
Inventor 汪艳陈神星傅铁陈卫刘冉王雁国史玉升闫春泽
Owner GUANGDONG SILVER AGE SCI & TECH CO LTD
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