Toughening and heat-resistant PET material for 3D printing and preparation method thereof

A 3D printing and toughening technology, applied in the direction of additive processing, etc., can solve the problems of product application range limitation, low thermal deformation temperature, low impact strength, etc., achieve low production cost, suitable thermal deformation temperature, and speed up molding Effect

Inactive Publication Date: 2017-12-26
GUANGDONG JUSHI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PET has a low heat distortion temperature, low impact strength, and poor toughness, which greatly limits the application range of printed products. It is necessary to overcome the above defects by modifying PET.

Method used

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  • Toughening and heat-resistant PET material for 3D printing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0057] The preparation method of the above-mentioned toughened heat-resistant PET material for 3D printing comprises the following steps:

[0058] 1) Drying the PET;

[0059] 2) Mix PET, chain extender, nucleating agent, nucleating accelerator, toughening agent, inorganic reinforcing agent, antioxidant, lubricant and nanoparticles, and stir evenly;

[0060] 3) Add the materials in step 2) into an extruder, knead, extrude, and granulate to obtain a toughened heat-resistant PET material for 3D printing.

[0061] Preferably, the preparation method of the above-mentioned toughened heat-resistant PET material for 3D printing comprises the following steps:

[0062] 1) Dry the PET at 130-140°C for 3-4 hours;

[0063] 2) Add PET, chain extender, nucleating agent, nucleating accelerator, toughening agent, inorganic reinforcing agent, antioxidant, lubricant and nanoparticles into the high-speed mixer, mix for 3 to 5 minutes, and stir well ;

[0064] 3) Add the materials in step 2) i...

Embodiment 1

[0068] 1) Weigh the following raw materials in parts by mass: PET Dayouguang slice 03: 86 parts; multi-epoxy chain extender CE-3: 2 parts; nucleating agent NAV-101: 0.7 parts; nucleating accelerator SURLYN 8920: 1.2 parts; toughening agent AX-8900: 4 parts; superfine talc powder: 3 parts; antioxidant 3114: 0.5 parts; lubricant pentaerythritol stearate: 0.6 parts; nano silicon oxide TSP-F09: 2 share;

[0069] 2) Put the PET chips into the blower dryer first, dry at 130-140°C for 3-4 hours, then put all the raw materials into the high-speed mixer, mix for 3-5 minutes, and mix well;

[0070] 3) Put the mixed raw materials into the twin-screw extruder, melt, extrude, and granulate to obtain a toughened heat-resistant PET material for 3D printing. The performance test of the toughened heat-resistant PET material for 3D printing in this example The data are shown in Table 1.

Embodiment 2

[0072] 1) Weigh the following raw materials in parts by mass: PET Dayouguang slice 03: 85.1 parts; multi-epoxy chain extender CE-3: 2 parts; nucleating agent NAV-101: 0.5 parts; nucleating accelerator SURLYN 8920: 1.4 parts; toughening agent AX-8900: 4 parts; aluminum hydroxide: 3.5 parts; antioxidant B215: 0.5 parts; lubricant silicone powder: 0.5 parts; nano silicon oxide TSP-F09: 2.5 parts;

[0073] 2) Put the PET chips into the blower dryer first, dry at 130-140°C for 3-4 hours, then put all the raw materials into the high-speed mixer, mix for 3-5 minutes, and mix well;

[0074] 3) Put the mixed raw materials into the twin-screw extruder, melt, extrude, and granulate to obtain a toughened heat-resistant PET material for 3D printing. The performance test of the toughened heat-resistant PET material for 3D printing in this example The data are shown in Table 1.

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Abstract

The invention discloses a toughening and heat-resistant PET material for 3D printing and a preparation method thereof. The toughening and heat-resistant PET material for 3D printing comprises PET, a chain extender, a nucleation agent, a nucleation promoter, a toughening agent, an inorganic reinforcing agent, an antioxidant, a lubricant and nano-particles. The preparation method comprises 1) drying PET, 2) mixing the PET, a chain extender, a nucleation agent, a nucleation promoter, a toughening agent, an inorganic reinforcing agent, an antioxidant, a lubricant and nano-particles and carrying out uniform stirring, and 3) adding the mixed materials into an extruder, and carrying out mixing, extruding and granulation to obtain the toughening and heat-resistant PET material for 3D printing. The toughening and heat-resistant PET material for 3D printing has a heat deflection temperature of 105 DEG C, notched impact strength of about 110 J / m, good toughness and an appropriate heat deflection temperature, realizes a low production cost, is easy to industrialize and can be widely used for electronic components products and electronic products for 3D printing formation.

Description

technical field [0001] The invention relates to a toughened heat-resistant PET material for 3D printing and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] 3D printing technology appeared in the mid-1990s. It is a technology based on digital model files and using bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing. The working principle of a 3D printer is basically the same as that of an ordinary printer. The printer is filled with "printing materials" such as liquid or powder. After being connected to a computer, the "printing materials" are superimposed layer by layer through computer control, and finally the blueprint on the computer is turned into a physical object. . Today, this technology has been applied in many fields, and people have begun to use it to make clothing, architectural models, cars and so on. Traditional manufacturing techniques such as i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L33/14C08L23/08C08L33/04C08K13/02C08K3/36B33Y70/00
CPCC08K2201/011C08L67/02C08L2201/08C08L2205/03C08L2205/035C08L2205/24C08L33/14C08L23/0869C08L33/04C08K13/02C08K3/36
Inventor 梁成志杨海民李文波
Owner GUANGDONG JUSHI CHEM CO LTD
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