Polyamide 6 modified material for additive manufacturing, and preparation method thereof

A modified material and additive manufacturing technology, which is applied in the direction of additive processing, can solve the problems of easy warping, printing difficulty, poor molding effect, and low heat resistance temperature, and achieve significant modification effect and enhanced toughness Remarkable effect, toughness improvement effect

Inactive Publication Date: 2018-03-09
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 polyamide 6 modified material that can be used in additive manufacturing to solve the problem of low heat-resistant temperature, poor molding effect, and easy warping when traditional single nylon materials are used as FDM process 3D printing consumables Phenomena and difficulty in printing, etc., while improving the overall performance of materials

Method used

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  • Polyamide 6 modified material for additive manufacturing, and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Dry PA6 in a constant temperature drying oven at 80°C for 6 hours;

[0017] (2) Configure the experimental materials according to the following composition ratio: PA6 72%, POE 10%, compatibilizer 4.5%, antioxidant 1.2%, glass fiber exposure prevention agent 0.3%;

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

[0019] (4) Pass the uniformly mixed experimental material through a twin-screw high-temperature extruder, control the speed of the host machine and the feeding speed to stabilize the glass fiber content at 12%, extrude, cool, dry, and granulate to obtain a product that can be used for 3D printed reinforced and toughened nylon material, in which the temperature of the 8 sections of the extruder is 235°C, 240°C, 240°C, 240°C, 245°C, 245°C, 245°C, 245°C, and the temperature of the head is 245°C. The speed of the main engine is 265r / min,...

Embodiment 2

[0022] (1) Dry PA6 in a constant temperature drying oven at 85°C for 5 hours;

[0023] (2) Configure the experimental materials according to the following composition ratio: PA6 65%, POE 15%, compatibilizer 3.5%, antioxidant 1.2%, anti-glass fiber exposure agent 0.3%;

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

[0025] (4) Pass the uniformly mixed experimental material through a twin-screw high-temperature extruder, control the speed of the main machine and the feeding speed to stabilize the glass fiber content at 15%, extrude, cool, dry, and granulate to obtain a product that can be used for 3D printed reinforced and toughened nylon material, in which the temperature of the 8 sections of the extruder is 230°C, 235°C, 235°C, 235°C, 240°C, 240°C, 240°C, 240°C, and the temperature of the head is 240°C. The speed of the host machine is 260r / min, and ...

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Abstract

The invention relates to the field of additive manufacturing consumables, and discloses a polyamide 6 modified material for additive manufacturing, and a preparation method thereof. The polyamide 6 modified material comprises, by mass, 62-78% of polyamide 6 (PA6), 8-15% of glass fibers, 8-20% of a toughener, 5-10% of a compatibilizer, 0.3-2% of an antioxidant and 0.2-1% of a fiber glass exposure inhibitor. The preparation method has a simple process, and has the following remarkable modification effects: 1, the glass fibers and the toughener are added, so the mechanical strength and the toughness of the prepared polyamide 6 modified material are obviously improved, and the strengthening and toughening effects are remarkable; 2, the preferable glass fiber exposure inhibitor is added, so thefree fluidity of the material is improved, and the processing performances are improved, thereby the surface glossiness of the material is high; 3, the material has a lower shrinkage rate and a higher thermal deformation temperature than traditional nylon materials; and 4, printing verifies that silks are smoothly produced from nozzles during 3D printing, and the material has the advantages of low warping, high precision and good appearance quality, and is very suitable for producing consumables for FDM additive manufacturing.

Description

technical field [0001] The invention belongs to the field of additive manufacturing consumables, and specifically relates to a polyamide 6 modified material that can be used for additive manufacturing and a preparation method thereof. Background technique [0002] Additive manufacturing (commonly known as 3D printing) technology is a technology that manufactures physical parts through continuous and gradual accumulation of materials, and is a "bottom-up" manufacturing method. Different from the traditional removal-cutting processing technology, 3D printing technology can directly produce objects of any shape by adding materials layer by layer according to the graphic data of the computer without the need for original embryos and molds, which can effectively simplify the manufacturing process of products. Shorten the product development cycle, improve production efficiency and reduce costs. 3D printing technology has been widely used in product prototypes, mold manufacturing...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L23/08C08L51/08C08K7/14C08K5/20B29C47/92B33Y70/00B29C48/92
CPCC08L77/02B29C48/92B29C2948/9258B29C2948/92704B33Y70/00C08K2201/003C08L2201/08C08L2205/03C08L2205/06C08L2205/08C08L23/0815C08L51/08C08K7/14C08K5/20
Inventor 于毅杨维曦马俊杰
Owner 四川鑫达企业集团有限公司
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