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Reinforced toughened nylon material can be used for 3D printing and preparation method thereof

A technology of strengthening and toughening and 3D printing, applied in the direction of additive processing, etc., can solve the problems of low heat-resistant temperature, easy warpage, difficulty in printing, poor molding effect, etc., and achieve high heat-resistant temperature and low molding shrinkage , the effect of comprehensive performance improvement

Inactive Publication Date: 2018-02-02
四川鑫达企业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The research content of the present invention is to develop a reinforced and toughened nylon material that can be used for 3D printing, so as to solve the problem of low heat resistance temperature, poor molding effect, easy warpage and printing problems when traditional single nylon materials are used as FDM 3D printing consumables. Difficulty and other problems, while improving the comprehensive performance of materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Dry the PA6 in a constant temperature drying oven at 80°C for 5 hours;

[0017] (2) Prepare the experimental materials according to the following composition ratios: PA6 64%, POE 15%, compatibilizer 3.5%, antioxidant 0.5%, coupling agent 1%, calcium carbonate 1%;

[0018] (3) Place the above-mentioned experimental raw materials in a high-speed mixer and fully mix for 2 minutes to obtain uniformly mixed experimental materials;

[0019] (4) Pass the above-mentioned uniformly mixed experimental material through a twin-screw high-temperature extruder, control the main engine speed and feeding speed to stabilize the glass fiber content at 15%, extrude, cool, dry, and granulate, and obtain a product that can be used for For the 3D printed reinforced and toughened nylon material, the temperature of the 8 stages of the extruder is 235°C, 235°C, 240°C, 240°C, 240°C, 240°C, 240°C, 240°C, and the head temperature is 240°C. The main engine speed is 267r / min, and the feeding sp...

Embodiment 2

[0022] (1) Dry the PA6 in a constant temperature drying oven at 90°C for 4.5 hours;

[0023] (2) Prepare the experimental materials according to the following composition ratios: PA6 73%, POE 10%, compatibilizer 5%, antioxidant 1%, coupling agent 0.5%, nano-silica 0.5%;

[0024] (3) Place the above-mentioned experimental raw materials in a high-speed mixer and fully mix for 3 minutes to obtain uniformly mixed experimental materials;

[0025] (4) Pass the above-mentioned uniformly mixed experimental material through a twin-screw high temperature extruder, control the speed of the main engine and the feeding speed to stabilize the glass fiber content at 10%, extrude, cool, dry, and granulate to obtain a product that can be used for For the 3D printed reinforced and toughened nylon material, the temperature of the 8 stages of the extruder is 235°C, 235°C, 240°C, 240°C, 240°C, 240°C, 240°C, 240°C, and the head temperature is 240°C. The main engine speed is 252r / min, and the feedi...

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PUM

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Abstract

The invention discloses a reinforced toughened nylon material can be used for 3D printing and a preparation method thereof. The reinforced toughened nylon material is consisted of the following components in percentage by mass: 60%-75% of polyamide 6 (PA6), 10%-20% of glass fiber (GF), 10%-20% of a toughening agent, 4%-8% of a compatibilizer, 0.3%-0.6% of an antioxidant, 0.3%-2% of a coupling agent, and 0.2%-1% of a nucleating agent. The material has the advantages that: 1, the addition of the compatibilizer and the coupling agent remarkably improves the compatibility and the bonding strengthbetween each component, so that the overall performance of the material is obviously improved; 2, the use of a certain diameter long glass fiber reinforcement reduces the shrinkage rate of the material, and improves the serious warpage shortcoming of the material when the material is used for printing; and 3, the addition of the toughening agent solves the shortcoming that the nylon material is lack in toughness after the glass fiber is reinforced, so that consumable printing use is facilitated. Compared with the performance of an existing nylon material, the material prepared in the inventionhas better mechanical properties, higher heat-resistant temperature, and lower molding shrinkage rate, and is not liable to warpage, so that the material is very suitable for preparing FDM-3D printing consumables.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a reinforced and toughened nylon material that can be used for 3D printing and a preparation method thereof. Background technique [0002] 3D printing is a popular name for additive manufacturing technology, which is a technology that produces three-dimensional entities by adding materials layer by layer through successive physical layers. Different from the traditional material removal processing technology, 3D printing technology can directly produce objects of any shape by adding materials according to computer graphics data without the need for original embryos and molds, which can effectively simplify the manufacturing process of products and shorten the development of products. cycle, improve efficiency and reduce costs. 3D printing technology has been widely used in product prototypes, mold manufacturing, art creation, jewelry making, bioengineering and medicine...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L23/08C08K13/04C08K7/14C08K3/26C08K3/36C08J5/04B33Y70/00B29C47/92B29C48/92
CPCC08L77/02B29C48/92B29C2948/9258B29C2948/92704B33Y70/00C08J5/043C08J2377/02C08K2201/003C08K2201/011C08L2201/08C08L2205/03C08L2205/08C08L2205/24C08L23/0815C08K13/04C08K7/14C08K2003/265C08K3/36
Inventor 张银坤赵武学宫克难
Owner 四川鑫达企业集团有限公司
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