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Acrylonitrile-butadiene-styrene (ABS) powder for 3D printing and preparation method thereof

A technology of acrylonitrile and butadiene is applied in the field of acrylonitrile-butadiene-styrene materials and their preparation, and can solve the problems of limited product performance, narrow product range, and uneven particle size distribution.

Active Publication Date: 2014-08-13
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The blending process is stable in production and rich in products, but its process is complicated and requires two different processes, high energy consumption, and large waste water pollution; while the continuous bulk method is the best in terms of cost and environmental protection, its main disadvantage is that the product The range is narrow, and the performance of the products produced has limitations, such as the inability to produce products with a high glue content of more than 20%
The existing acrylonitrile-butadiene-styrene copolymer (ABS) powder used in the 3D printing process is produced by cryogenic grinding of the above products. The types and properties of the prepared products are limited and the particles are irregular and the particle size distribution is different. These will affect the performance of 3D printed forming parts

Method used

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  • Acrylonitrile-butadiene-styrene (ABS) powder for 3D printing and preparation method thereof
  • Acrylonitrile-butadiene-styrene (ABS) powder for 3D printing and preparation method thereof
  • Acrylonitrile-butadiene-styrene (ABS) powder for 3D printing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] The deionized water that is 90 parts by mass, the polybutadiene latex particles that have been prepared by 18 parts by mass, and the sodium oleate emulsifier that is 0.2 by mass are introduced into N 2 In the protected polymerization reactor, styrene and acrylonitrile monomers with a weight fraction of 15 and 3 are also introduced into the reactor; dodecyl mercaptan with a mass fraction of 0.1 is added as a molecular weight regulator, and the composite initiation system includes The mass fraction is the sodium pyrophosphate of 0.15, the mass fraction is the glucose of 0.11, the mass fraction is the ferrous sulfate of 0.02, and the mass fraction is 0.14 hydroperoxide (initiator), the temperature of reaction rises to The reaction started at 72°C.

[0073] In addition, a part of the monomer mixed emulsion added later is prepared; wherein the deionized water containing 200 parts by weight, the sodium oleate of 2 parts by weight, the styrene of 80 parts by weight, and the pr...

Embodiment 2

[0077] Be that the deionized water of 80 parts by mass, the polybutadiene latex particle (1) that has made of 18 parts by mass, its particle diameter is at 15 microns, and the sodium oleate emulsifier that the mass part is 0.4 introduces N 2 In the protected polymerization reactor, styrene and acrylonitrile monomers with a weight fraction of 18 and 5 are also introduced into the reactor; dodecylmercaptan with a mass fraction of 0.1 is added as a molecular weight regulator, and the initiation system includes mass Parts are the sodium pyrophosphate of 0.15, the mass fraction is the glucose of 0.11, the mass fraction is the ferrous sulfate of 0.02, and the mass fraction is 0.14 hydroperoxide cumene (initiator), reaction temperature Raise to 72°C to start the reaction.

[0078] In addition, a part of the monomer mixed emulsion added later is prepared; wherein the deionized water containing 200 parts by weight, sodium oleate of 1 part by weight, styrene of 80 parts by weight, and ...

Embodiment 3

[0082] Except that the total mass of styrene and acrylonitrile added in advance is increased to 33 parts by mass, and the total amount of styrene and acrylonitrile added subsequently is reduced to 85 parts by weight, it is prepared according to the same method as in Example 1, and the physical properties The test is as follows.

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Abstract

The invention provides a powder combination of acrylonitrile-butadiene-styrene (ABS) copolymers. The invention is characterized in that the powder combination is prepared by copolymerization of raw materials. The raw materials contain, by weight, 5-30 parts of polybutadiene latex, 60-95 parts of styrene monomer, 5-40 parts of acrylonitrile monomer, 0.1-8 parts of an emulsifier, 0.01-1 part of an initiator, and 0-2 parts of a molecular weight regulator, wherein seeded latex is selected from polybutadiene, butadiene styrene rubber latex, ethylene propylene rubber latex, ethene-propylene-diene ternary copolymer latex, polyacrylate and chlorinated polyethylene; the acrylonitrile monomer is selected from acrylonitrile, acrylic esters and methacrylate; and the styrene monomer is selected from styrene, methyl styrene, terpene oil and allyl chloride. The combination provided by the invention has a wide performance range. Particle size of the combination is adjustable within 0.1-100 microns, and particle size distribution is narrow. Thus, it is very beneficial to a 3D printing forming technology.

Description

technical field [0001] The invention relates to an acrylonitrile-butadiene-styrene (ABS) material and a preparation method thereof, in particular to an acrylonitrile-butadiene-styrene (ABS) material for 3D printing and a preparation method thereof. Background technique [0002] Acrylonitrile-butadiene-styrene copolymer (ABS) has good comprehensive mechanical properties, and has the advantages of corrosion resistance, good plasticity, flexible forming and processing, and low cost. It is widely used in the automobile industry, electronic and electrical components, textile appliances, etc. However, due to the limitations of raw material components and polymerization processes, it cannot meet the requirements in terms of heat resistance stability, impact strength, low temperature toughness, processing fluidity, etc., especially in the application of some high-end materials. limits. [0003] 3D printing, also known as "rapid prototyping technology" and "rapid prototyping manufa...

Claims

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Application Information

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IPC IPC(8): C08F279/04C08F2/26C08F2/30B29C67/00
Inventor 马永梅党小飞张京楠曹新宇王佛松孙文华赵宁董金勇李春成符文鑫林学春
Owner INST OF CHEM CHINESE ACAD OF SCI
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