Plastics Additives
Additives are materials that are added to the primary resin during either compounding or processing to improve the polymer’s processability, performance or appearance. Additives include colorants; heat stabilizers; process aids; fillers; compatibilizers; blowing agents; lubricants; slip agents.
ESSENTIAL READING
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Understanding the ‘Science’ of Color
And as with all sciences, there are fundamentals that must be considered to do color right. Here’s a helpful start.
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What’s With All the Static?
Static buildup on polymers can cause a variety of problems, some rather unpleasant. Yet there’s an inexpensive way to eliminate it, and we have data as proof.
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Part 11: A Processor's Most Important Job
It’s the processors job to ensure molded parts contain enough stabilizer to perform to the expectations of the end use.
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How to Prevent Stress Whitening in PP Copolymers
A look at causes, detection, and prevention.
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Extruding with Fillers
You can use the reference point from processing unfilled polymer to determine whether you can run filled resin on your current system.
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Materials: Analyzing Filler Content
The process is considered simple. But things aren’t always as they seem.
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Latest Additives News And Updates
Broad Line of Chemical Foaming Agents for Range of Applications
Reedy Chemical Foam’s Safoam RAZ additives are offered in masterbatch and powder blends along with customization.
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VOC Removal Masterbatch for ABS and PC/ABS Used in EVs
CAI Performance Additives’ VOC Removal Masterbatch LDV 8010 has shown to reduce VOC emissions without compromising product quality.
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Non-PFAS Mold Release for High-Temperature Polymers
Avient’s Evoluscend is designed to boost manufacturing efficiency.
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Avient Opens ColorWorks Technology Center in Mexico City
This is the company’s sixth such center aimed at providing technical guidance in plastic product development from its early stages.
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‘Game-Changing’ Heat and Light Stabilizer for Agricultural PE Films
BASF’s NOR 211 AR promotes sustainability through reduced polymer usage in the so-called plasticulture — plastics used in agriculture — market.
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High-Jetness Carbon Black for Engineered Plastics
Orion’s new Printex chroma 500 Beads are well suited for applications such as injection molded automotive parts and household appliances.
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Featured Posts
Additives Boast Sustainability Without Sacrificing Performance
Sustainability continues to dominate new additives technology, but upping performance is also evident. Most of the new additives have been targeted to commodity resins and particularly polyolefins.
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Struktol Showcasing a Range of Specialty Additives
NPE2024: Focus is on additives for plastics including PVC and WPC industries.
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BASF Highlighting How They 'Make, Use and Recycle Future Solutions'
NPE2024: BASF is using its proprietary computer-aided engineering tool Ultrasim when designing for sustainability in a broad range of industries.
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Riverdale Global Showing Latest Innovations and New Satellite Location in Wisconsin
NPE2024: Live demos of updated RGS controller are among the highlights at its Wisconsin facility that will house the ‘new’ color R&D lab.
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At NPE2024, Follow These Megatrends in Materials and Additives
Offerings range from recycled, biobased, biodegradable and monomaterial structures that enhance recyclability to additives that are more efficient, sustainable and safer to use.
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Gerdau Graphene Launches “First” Graphene-Enhanced PE Additive Masterbatch for Extruded Packaging and More
The company has also partnered with conglomerate Sumitomo Corp. for distribution of its graphene-enhanced masterbatches in Japan.
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FAQ: Additives
What to consider when adding color?
There are several key items that are essential in developing a colorant package for any polymer. The first of these is the avoidance of any chemical incompatibility between the chemistry of the polymer and the chemistry of the colorant system. Chemical reactions proceed more rapidly at higher temperatures, and melt processing involves significantly elevated temperatures and large inputs of mechanical energy. Therefore, any chemical interactions that may occur between a polymer and a colorant system will happen very rapidly during the injection molding process.
The material supplier will incorporate a certain amount of the stabilization package in the material, making this the starting point for that material. It is now the processor’s job to handle the material during processing so that the molded part contains enough stabilizer to perform to the expectations of the end user. The molding process will always consume some amount of the antioxidant in the material. This is expected. But the amount of stabilizer that is consumed will depend upon the process conditions, most notably the melt temperature and the time the material spends in the molten state. Lower melt temperatures and shorter residence times will produce parts that retain a higher level of stabilization, and these parts will be more capable of handling the application environment. If melt temperatures become elevated or residence times become extended, the molded part will be less capable of managing the application demands.
Additives Supplier Categories
- Additive Manufacturing (3D Printing/Prototyping Materials)
- Antiblocking Agents
- Antioxidant Concentrates
- Fillers--Mineral or Other Inorganic Type
- Processing Aids--Other Organic Types
- Compatibilizers
- Thixotropic Agents
- Biocides
- Color Concentrates, Solid
- Color Concentrates, Liquid or Paste
- Plasticizers
- Processing Aids--Mineral/Inorganic Type
- Crosslinking Agents--Radiation Sensitizers
- Release Agents--External (Spray or Wipe-on)
- Flaw Repair Paint
- Odor Neutralizers
- Antioxidants
- Impact Modifiers
- UV Stabilizers
- Antiblocking Concentrates
- Surface Treatment Chemicals, Dispersion Aids (for Fillers, Pigments, Reinforcements)
- Degradation Promoters
- Reinforcements--Ceramic Fibers
- Metal Deactivators
- Reinforcements--Continuous Fiber Rovings, Tows, Yarns
- Core Materials
- Reinforcements--Carbon or Graphite Fiber
- Fillers--Organic Type
- Cooling-water Treatment Chemicals
- Reinforcements--Mineral Fiber
- Heat-Distortion Modifiers
- Stock Shapes--Rod, Tube
- Blowing Agents--Physical Type
- Reinforcements--Fabric, Mat, Veil, Felt
- Stock Shapes--Film
- Release Agents--Internal (Additive Type)
- Slip Agents
- Blowing Agents--Chemical Type
- Resin Clean-up Solutions
- Viscosity Depressants
- Reinforcements--Aramid Fiber
- Lubricant Concentrates
- Stripping Agents, Resin Removers
- Reinforcements--Nylon, PET or PP Fiber
- Surfactants
- Color Dyes, Pigments
- Purging Compounds
- Processing Aids--Polymeric Type
- Air Release Agents
- Antistat Concentrates
- Flame Retardant Concentrates
- Fillers--Microspheres (Hollow or Solid)
- Flame Retardants/Smoke Suppressants
- Nucleating/Clarifying Agents
- Conductive Additives
- Crosslinking Agents for Thermoplastics
- Blowing Agents--Concentrates
- Lubricants
- Slip Agent Concentrates
- Antifogging Agents
- Heat Stabilizers for PVC
- UV Stabilizer Concentrates
- Desiccant Additives
- Stock Shapes--Sheet
- Fragrance Additives
- Biodegradable, Photodegradable Resins and Compounds
- Reinforcements--UHMW-PE Fiber
- Reinforcements--Glass Fiber
- Antistats
- Reinforcements--Natural Fibers
- Reinforcements--Discontinuous Fibers (Chopped, Milled, Staple)
