3D PRINTING WITH ACRYLONITRILE BUTADIENE STYRENE(ABS)

What is Acrylonitrile Butadiene Styrene?

ABS (Acrylonitrile Butadiene Styrene) is a terpolymer of acrylonitrile, butadiene and styrene, A represents acrylonitrile, B represents butadiene, and S represents styrene. In 3D Printing service, Acrylonitrile has high strength, thermal stability and chemical stability; butadiene has toughness and impact resistance; styrene has easy processing, high gloss and high strength.

The engineering plastic ABS copolymerized from acrylonitrile, butadiene and styrene is a kind of non-crystalline, high-strength, high-toughness, high dimensional stability, easy to process and other characteristics of thermoplastic polymer materials, also known as ABS resin.

The appearance of ABS is opaque ivory pellets, non-toxic, odourless, low water absorption and 90% high gloss. ABS materials are available in a variety of fields, such as ivory and black. They are widely used in various fields including 3D Printing in India, such as automobiles, textiles, instrumentation, electronics, and construction.

They are a very versatile thermoplastic engineering plastic. ABS (Acrylonitrile Butadiene Styrene) plastic used by 3D Printing companies has various excellent properties such as good impact strength, good dimensional stability, heat resistance, low-temperature resistance, excellent electrical properties and wear resistance, and its chemical resistance is also very strong. It is more suitable for forming and machining.

ABS (Acrylonitrile Butadiene Styrene) has good bonding with other materials and is easy to surface printing, coating and coating treatment, such as surface metallization, electroplating, welding, hot pressing and bonding.

Plastic ABS resin is one of the most widely used and widely used polymers for 3D Printing services in India. It combines the various performance advantages of PB, PAN and PS, and has excellent mechanical properties such as toughness, hardness and rigid phase.

In addition, ABS resin can be blended with a variety of resins into a blend, such as PC / ABS, ABS / PVC, PA / ABS, PBT / ABS mixing can produce new properties for new applications of 3D Printing Bangalore.

In 3D printing in India, ABS is a thermoplastic engineering plastic commonly used in FDM molding processes.

How is ABS made?

ABS (Acrylonitrile Butadiene Styrene) is produced by emulsion or continuous mass technique. The chemical formula of Acrylonitrile Butadiene Styrene is (C8H8·C4H6·C3H3N) n.

The natural material is an opaque ivory colour and is readily coloured with pigments or dyes.

What are ABS material properties?

• Glass transition temperature of ABS plastic is 105°C (221°F)
• Has a low melting point
• Not really adaptable to high heat situations
• Heated Bed Required
• Enclosure Recommended
• No special hot-end required

8 Things to remember while 3D printing online with ABS: 

1. Print in a Well-Ventilated Area
2. While doing a dual extrusion print, PLA can be a good break-away support material as it does not adhere strongly to ABS
3. Make sure the build platform is properly calibrated.
4. The larger the surface area of the printed part, the more likely it is to have more warping forces present.
5. The best surface for online 3D printing ABS material without any adhesives is a PEI build plate.
6. If the temperature is too high then stringing can occur between separated parts. As the extruder leaks small amounts of plastic when it moves between those areas. Should this occur, it is important for the temperature to be reduced incrementally.
7. If the temperature is too cold, it will result in the ABS material failing to stick to the previous layer. This will cause the surface to feel rough. For this extruder temperature should be increased incrementally.
8. It is important to store the ABS material correct as this will have a positive impact on the quality of the 3D print online.

What are the advantages of ABS material?

• Used by 3D FDM or FFF printers
• Operating the 3D printer is fairly simple for the 3D Printing companies with this material 
• High durability
• Low material costs
• High strength
• High heat resistance
• High chemical resistance
• Affordability
• Lightweight
• Good impact strength
• Abrasion resistant
• Good surface quality
• Flame retardant

What are the disadvantages of ABS material?

• Heavy warping
• Needs heated bed or heated chamber
• Produces a pungent odour while printing
• Shrinkage of parts leading to dimensional inaccuracy
• Non-biodegradable

What is the compatibility of ABS material?

An ABS plastic sheet is biocompatible.

There have been recent concerns about the toxicity of the ABS material used in online 3D printing in India when it is brought to its melting point.

In fact, some studies indicate that ABS emits fumes when it exits the extrusion head at its melting temperature.

But despite some limitations, ABS material marks its place in the online 3D Printing services as it is recyclable.

This material is widely used in Fused Diffusion Modelling (FDM).

What are the applications of ABS material?

• Prints Cases or Project Enclosures
• ABS plastic sheet is used on dashboards, wheel covers, and body parts because of its strength, low temperature resistance, and rugged surface that doesn’t easily scratch.
• Applications in automotive and transportation include:
• Instrument panels
• Pillar trim
• Dashboard components
• Door liners and handles
• Seat backs, seat belt components, etc.
• Prints Toys or Action Figures
• Prints appliance control panels, housings (shavers, vacuum cleaners, food processors), refrigerator liners, etc.
• Prints enclosures for electrical or electronic assemblies
• Prints sports equipment
• Prints medical sectors
• Used in Fused Diffusion Modelling (FDM)

What are the 3D printing technologies that use ABS material?

• Fused Diffusion Modelling (FDM)

FDM 3D printing service is a technique that prints both horizontally and vertically, an extrusion nozzle moves over a build platform.

The process of this 3D Printing online requires thermoplastic material which on reaching melting point is then ejected out, to make a 3D object layer by layer.

• Selective laser sintering (SLS)

Selective Laser Sintering is an additive manufacturing (AM) technology. A laser is casted as the power origin to sinter powdered material pointing it automatically at points defined by a 3D prototype, binding the material together to create a solid structure.

It is a new technique used for rapid prototyping and for low-volume production of component parts.

The Feature of ABS

The performance of ABS (Acrylonitrile Butadiene Styrene) materials is mainly divided into the following aspects.

(1) General performance.

ABS (Acrylonitrile Butadiene Styrene) is a kind of resin with good comprehensive performance used by many 3D Printing companies in Bangalore. It has high impact strength and surface hardness in a wide temperature range.

The heat distortion temperature is higher than PA, polyvinyl chloride (PVC) and dimensional stability. The flowability of ABS melt is better than that of PVC and PC, but it is worse than polyethylene (PE), PA and polystyrene (PS), and similar to polyoxymethylene (POM) and impact polystyrene (HIPS).

The flow characteristics of ABS are non-Newtonian fluids, and their melt viscosity is related to processing temperature and shear rate, but is more sensitive to shear rate. ABS has excellent thixotropy and is suitable for FDM 3D printing service in India.

(2) Mechanical properties.

ABS has excellent mechanical properties for affordable 3D Printing services:

First of all, its impact strength is excellent and can be used at extremely low temperatures. Even if the ABS product is destroyed, it can only be tensile damage without impact damage;

Secondly, ABS has excellent wear resistance, good dimensional stability and oil resistance, so it can be used for bearings under medium load and speed.

The creep of ABS is larger than that of polysulfone (PSF) and PC, but smaller than PA and POM. In plastics of 3D Printing online, the bending strength and compressive strength of ABS are poor, and the mechanical properties are greatly affected by temperature.

(3) Thermal properties.

ABS is an amorphous polymer, so there is no obvious melting point, high melt viscosity, poor fluidity, poor weather resistance, ultraviolet light can change its colour; heat distortion temperature is 70 C~107 C (about 85 C), and it’s After the product is annealed, the heat distortion temperature can be increased by about 10 C.

ABS is sensitive to temperature and shear rate, and can exhibit certain toughness at -40C, so it can be used for a long time in the range of -40C to 85C.

(4) Electrical properties.

ABS has good electrical insulation and is hardly affected by temperature, humidity and frequency, and can be used in most environments by 3D Printing companies.

(5) Environmental performance.

ABS is not affected by water, inorganic salts, alkali alcohols and hydrocarbon solvents and various acids, but is soluble in ketones, aldehydes and chlorinated hydrocarbons. It can be stress cracked by glacial acetic acid, vegetable oil, etc.

The application of ABS materials in 3D printing

ABS is the most commonly used thermoplastic for 3D printing Bangalore, but it is not biodegradable.

ABS’s good strength, flexibility, machinability, and high-temperature resistance often make it the plastic of choice for engineers. In addition, it has excellent wear resistance and impact absorption.

The biggest accuracy obstacle of most ABS parts is that the printing surface that is in direct contact with the working substrate of the 3D printer is prone to upward curling. This requires heating the working substrate (usually 50~110C) in advance to ensure that the bottom of the model is smooth, flat, and clean to eliminate the curling phenomenon.

Studies have found that using ABS/acetone blends or using a hair spray gun can avoid curling on the printed surface. However, when printing large objects, care should be taken to warp the deformation caused by thermal stress during the cooling of the 3D model.

Other modified ABS materials that can be used for 3D printing

In order to further improve the performance of ABS materials and make ABS materials more in line with the practical application requirements of 3D printing quote, people have modified the existing ABS materials and developed ABS-ESD, ABSplus, ABSi, and ABS-M30i for 3D. 

Read More : ALL ABOUT PP FILAMENT