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A kind of acrylic microsphere composite material for rapid prototyping and preparation method thereof

A technology of acrylates and composite materials, applied in the direction of additive processing, etc., can solve the problems of material mechanical strength and chemical stability decline, dust or reagent pollution, etc.

Active Publication Date: 2021-04-06
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used resin powder materials usually physically or chemically pulverize engineering plastics, which leads to a decrease in the mechanical strength and chemical stability of the material after molding, and there is dust or reagent pollution during the pulverization process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0035] (1) Add the required raw materials into the container one after another:

[0036] 100 parts of methacrylate microspheres,

[0037] Ultra-short glass fiber 10 parts,

[0038] 0.2 parts of coupling agent γ-aminopropyltriethoxysilane,

[0039] 0.2 parts of light stabilizer benzotriazole chloride,

[0040] 0.008 parts of antioxidant tetrakis (3,5-di-tert-butyl-4-hydroxyl) pentaerythritol phenylpropionate,

[0041] 0.012 parts of antioxidant tris(2,4-di-tert-butyl)phenyl phosphite,

[0042] Lubricant ethylene-acrylic acid copolymer 0.03 parts,

[0043] 0.02 part of heat stabilizer calcium stearate;

[0044] (2) After mixing, the materials were stirred at a high speed at 45°C for 10 minutes until they were evenly dispersed;

[0045] (3) The obtained premixed material is prepared into required parts by laser sintering, and the corresponding properties are tested.

[0046] The properties of the manufactured parts are shown in Table 1.

example 2

[0048] (1) Add the required raw materials into the container one after another:

[0049] 100 parts of methacrylate microspheres,

[0050] 20 parts of ultra-short glass fiber,

[0051] 0.3 parts of coupling agent γ-aminopropyltriethoxysilane,

[0052] 0.3 part of light stabilizer benzotriazole chloride,

[0053] 0.016 parts of antioxidant tetrakis (3,5-di-tert-butyl-4-hydroxyl) pentaerythritol phenylpropionate,

[0054] 0.024 parts of antioxidant tris(2,4-di-tert-butyl)phenyl phosphite,

[0055] 0.06 part of lubricant ethylene-acrylic acid copolymer,

[0056] 0.04 part of heat stabilizer calcium stearate;

[0057] (2) After mixing, the materials were stirred at a high speed at 55°C for 15 minutes until they were evenly dispersed;

[0058] (3) The obtained premixed material is prepared into required parts by laser sintering, and the corresponding properties are tested.

[0059] The properties of the manufactured parts are shown in Table 1.

example 3

[0061] (1) Add the required raw materials into the container one after another:

[0062] 100 parts of methacrylate microspheres,

[0063] 30 parts of ultra-short glass fiber,

[0064] 0.4 parts of coupling agent γ-aminopropyltriethoxysilane,

[0065] 0.4 part of light stabilizer benzotriazole chloride,

[0066] 0.024 parts of antioxidant tetrakis (3,5-di-tert-butyl-4-hydroxyl) pentaerythritol phenylpropionate,

[0067] 0.048 parts of antioxidant tris(2,4-di-tert-butyl)phenyl phosphite,

[0068] Lubricant ethylene-acrylic acid copolymer 0.09 part,

[0069] 0.06 part of heat stabilizer calcium stearate;

[0070] (2) After mixing, the materials were stirred at a high speed at 65°C for 20 minutes until they were evenly dispersed;

[0071] (3) The obtained premixed material is prepared into required parts by laser sintering, and the corresponding properties are tested.

[0072] The properties of the manufactured parts are shown in Table 1.

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Abstract

The invention provides an ultra-short glass fiber modified acrylate microsphere composite material, which is composed of the following raw materials: 100 parts of acrylate microspheres, 10-50 parts of ultra-short glass fiber, and 0.2-0.6 parts of coupling agent , 0.2-0.6 parts of light stabilizer, 0.02-0.1 part of antioxidant, 0.03-0.15 part of lubricant and 0.02-0.1 part of heat stabilizer. The present invention innovatively uses ultra-short glass fibers to modify acrylic microspheres to prepare an acrylic microsphere composite material for rapid prototyping. The composite material prepared by the invention has the characteristics of high mechanical strength, good dimensional stability, strong wear resistance, fast forming speed and the like, and at the same time, the comprehensive cost of the composite material is greatly reduced by using the ultra-short glass fiber as the modified material. In addition, the preparation process of the composite material involved in the present invention is simple, and the prepared composite material can be applied to the field of laser sintering rapid prototyping and can prepare complex workpieces with three-dimensional structures.

Description

technical field [0001] The invention provides an ultra-short glass fiber modified acrylate microsphere composite material and a preparation method thereof, belonging to the field of rapid prototyping and modification of acrylate microsphere materials. Background technique [0002] Laser sintering rapid prototyping technology develops rapidly in the field of rapid prototyping due to its efficient product design and rapid product development. It uses light sources of specific wavelengths as energy sources and powder materials as raw materials. Complete three-dimensional solid construction, while having the advantages of no pollution and no need for supporting structures. The common raw materials of selective laser sintering technology are sinterable powder materials such as resin, metal and ceramics. Due to the relatively loose molding conditions of resin powder materials, they have been vigorously developed in the field of powder materials. Commonly used resin powder materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/10C08K13/04C08K7/14C08K5/544C08K5/5435C08K5/098B33Y70/10
CPCB33Y70/00C08K5/098C08K5/20C08K5/5435C08K7/14C08K13/04C08K2201/004C08L33/10C08L23/0869C08K5/544C08K5/3475C08K5/526
Inventor 杨桂生李枭李术
Owner HEFEI GENIUS NEW MATERIALS