Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Acrylonitrile-butadiene-styrene (ABS) powder with dual-binary particle size distribution for 3D printing and preparation method thereof

A technology of acrylonitrile and butadiene, applied in the field of polymers, can solve problems such as complex process flow, uneven particle size distribution, and irregular particles

Active Publication Date: 2014-08-13
INST OF CHEM CHINESE ACAD OF SCI
View PDF7 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The blending process is stable in production and rich in products. It is currently the production process with the largest output. There are also continuous research on formulations. For example, the Chinese invention patent CN101570588A adopts two types of latex particles with different particle sizes to prepare graft polymers. After mixing Blending with SAN produces ABS products with excellent impact and appearance, but this process is complicated and requires two different processes, high energy consumption, and large waste water pollution, as mentioned in the Chinese invention patent CN1025326A. A large amount of water containing concentrated sulfuric acid is condensed; while the continuous bulk method is the best in terms of cost and environmental protection, which represents the development trend of ABS technology, but its main disadvantage is that the product range is very limited, and the performance of the produced products is limited. Limitations, such as the inability to produce products with a high glue content of more than 20%, so there are not many companies using this production process
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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Acrylonitrile-butadiene-styrene (ABS) powder with dual-binary particle size distribution for 3D printing and preparation method thereof
  • Acrylonitrile-butadiene-styrene (ABS) powder with dual-binary particle size distribution for 3D printing and preparation method thereof
  • Acrylonitrile-butadiene-styrene (ABS) powder with dual-binary particle size distribution for 3D printing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] The first step: the polybutadiene latex particle (1) that the mass fraction is 90 deionized water, the mass fraction is 18, its particle diameter is 20 microns, and the mass fraction is 0.2 oleic acid The sodium emulsifier is introduced into the N2-protected polymerization reactor, and the styrene and acrylonitrile monomers with a weight fraction of 15 and 3 are also introduced into the reactor; dodecylmercaptan with a mass fraction of 0.1 is added as a molecular weight regulator , the initiation system comprises the sodium pyrophosphate that the mass fraction is 0.15, the glucose that the mass fraction is 0.11, the ferrous sulfate that the mass fraction is 0.02, and the hydroperoxide cumene (initial throw initiator) that the mass fraction is 0.14 ), the reaction temperature was raised to 72°C to start the reaction.

[0101] In addition, a part of the monomer mixed emulsion added later is prepared; wherein the deionized water containing 200 parts by weight, the sodium o...

Embodiment 2

[0106] The first step: the polybutadiene latex particle (1) that the mass fraction is 80 deionized water, the mass fraction is 18, its particle diameter is at 15 microns, and the mass fraction is 0.4 oleic acid The sodium emulsifier is introduced into the N2 protected polymerization reactor, and the styrene and acrylonitrile monomers with a weight fraction of 18 and 5 are also introduced into the reactor; Sodium pyrophosphate of 0.15, the glucose of 0.11 in mass fraction, the ferrous sulfate of 0.02 in mass fraction, and the hydroperoxide cumene (initiator) of 0.14 in mass fraction, the reaction temperature rises to 72 ℃ and begins reaction.

[0107] 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 propylene of 15 parts by weight Nitrile, the dodecyl mercaptan that parts by weight are 0.5, the sodium pyrophosphate that par...

Embodiment 3

[0112] 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. In the second step, the antioxidant is 1010 powder, Prepared according to the same method as in Example 1, its physical properties are tested as follows.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a powder combination of acrylonitrile-butadiene-styrene (ABS) copolymers. Particle sizes of ABS rubber particles and powder particles obtained are both in bi-modal distribution. Raw materials contain, by weight, 0-40 parts of seed latex, 60-95 parts of a styrene monomer, 5-40 parts of an acrylonitrile monomer, 0.1-8 parts of an emulsifier, 0.01-1 part of an initiator and 0-2 parts of a molecular weight conditioning agent. Particle size of small particles of the ABS rubber particles and the powder particles obtained is 1-15 microns, and particle size of larger particles is 15-100 microns. The particle sizes of the powder are in dual particle size distribution, and particle sizes supplement each other. Thus, power laying is denser during 3D printing process, and a 3D part with better performance is prepared.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to an acrylonitrile-butadiene-styrene (ABS) material with a double-binary particle size distribution 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. ABS materials are widely used in the automotive industry, electronic and electrical components, and textile appliances. 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. The existence of rubber particles in this material plays an important role in the improv...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08F279/04C08F2/24C08L55/02B29C67/00
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com