Sep 18, 2019
When covalent chains of SAN (Styrene-Acrylonitrile Copolymer) link to Polybutadiene chains Acrylonitrile-Butadiene-Styrene Copolymer us build, short ABS.
This amorph thermoplast contains 15-35 % Acrylonitrile, 5-30 % Butadiene and 40-60 % Styrene. The properties can be greatly influenced by different mixing ratios.
ABS is characterized by its low weight.
The break and impact resistance, as well as high hardness and scratch resistance make it suitable for housings and toys, furthermore mouth pieces of music instruments are build out of it.
Aqueous chemicals can not harm ABS.
The raw material is gray to colorless and can be produced in any color if master batch is used.
ABS can be found primary in the automotive and electrical industry.
Furthermore it is popular for electroplating and thermoformed parts. ABS is also used in 3D printers.
Plastic: A
scale out of ABS.
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This glossary of plastic industry is provided by PLEXPERT Canada Inc.
Oct 18, 2019
In order to change the properties of plastics additives are used during compounding.
Additives are auxiliaries which influence the properties of the plastic granules during processing or the usage of the plastic part.
A distinction is made in reinforcing agents, functional additives and fillers.
Reinforcing agents are e.g. Fibers. Glass or carbon fibers are used to improve the mechanical properties. They increase the strength and rigidity of the components.
Functional additives are e.g. heat stabilizers, impact modifiers, UV stabilizers and processing aids. In general a few percent of the additive result in specific properties.
Fillers e.g. chalk or talc are usually inexpensive additives that reduce the price of the plastic granules.
Plastic: A
compound is produced by adding
additives.
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This glossary of plastic industry is provided by PLEXPERT Canada Inc.
Dec 12, 2018
Polymers with macromolecular chains, that have mostly random orientation with a high entropy, are called amorphous.
This structure allows the chains to move freely, which leads to a high flexibility and elasticity of the material.
Amorphous thermoplastics consist of only 10 % crystalline structures.
Typical amorphous materials are PS, ABS and PC.
Plastic:
Amorphous Material is recognizable on the macromolecular chains
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This glossary of plastic industry is provided by PLEXPERT Canada Inc.
Jan 28, 2019
Plastic granules are typically stored in small casks (bags), large casks (octabins) or in silos.
The smallest delivery unit is a bag. One bag typically comprises 25 kg of plastic material. In some cases bags with 20 kg are available as well.
The plastic granules from an unopened bag can usually be processed directly.
However, with prolonged interim storage of the material, it is imperative to dry it before processing.
Drying is mandatory especially when processing hygroscopic plastics.
Dec 11, 2018
The mixture of two or more polymers to create a new material with different physical properties is known as blend or polymer blend.
Polymer blending has drawn attention as an easy and cost-effective method of developing materials that have versatility for commercial applications.
The properties of the blends are manipulated according to their end use by correct selection of the component polymers.
Typical Blends are PC+ABS, PA6+PA66 and ABS+PA.
The picture is showing a blend with amorphous (green) and semi-crystalline (purple) components plus additional fillers (blue).
