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Polymer Additives & Fillers
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Compounders of plastics modify properties of a
thermoplastic material by many other methods as well.Plastic compounds can
be varied widely as to type and amount of these additives, and every
modification produces a compound with different properties. Examples of
thermoplastic products are polyethylene squeeze bottles, nylon gears and
rollers, acrylic lenses, ABS (acrylonitrile-butadiene-styrene)
business-machine and appliance housings, polystyrene-foam cups,
polycarbonate safety helmets and glazing sheet for bus windows, and
polyphenylene sulfide chemical pumps and automotive underhood components.
- antimicrobials to control the build up of bacteria, Fungi and
Algae on the surface
- antioxidants for higher temperature stability
- antistatics to prevent the build up of static electric charge
- fibers are added to increase strength and stiffness
- plasticizers for flexibility
- lubricants for easier molding or for increasing adhesion and
viscosity of the molded parts
- UV stabilizers for resistance to sunlight
- fillers for economy
- flame retardants, smoke suppressants, and conductive fibers or
flakes provide special properties for certain applications.
Additives also give specific properties to the finished products.
- Polyolefins such as Polyethylene (PE) and Polypropylene (PP)
are simpler polymer structures do use additives such as UV and heat
stabilizers, antioxidants and in some applications flame retardants.
- PVC is the most versatile of all plastics because of its
blending capability with plasticizers, stabilizers and many other
additives. This is important as all PVC polymers need heat stabilizers in
order to be able to withstand the processing temperatures. Other additives
are also used: rubbery polymers to give brittle PVC better impact
strength, and fillers.
- Additives and formulation with copolymers provide varying properties
to Polystyrene, already available commercially in 1930s.
Furthermore, processing and finishing may give off styrene vapour which is
the main degradation product. Reactive degradation products from additives
are also created in low concentrations.
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Antiblocking Agents
Antiblocking Concentrates
Antifogging Agents
Antioxidant Concentrates
Antioxidants
Antistat Concentrates
Antistats
Biocides
Blowing Agents
- Chemical Types
- Concentrates
- Physical Type
Catalysts and Curing Agents
- Epoxy Catalysts
- Epoxy Hardeners
- Polyester Catalysts, Initiators
- Polyester Inhibitors
- Polyester Promoters, Accelerators
- Urethane Catalysts
- Urethane Cross linkers, Chain Extenders
Colorants
- Concentrates, Liquid or Paste
- Concentrates, Solid
- Dyes, pigments
Conductive Additives
Cooling-Water Treatment Chemicals
Coupling Agents
Crosslinking Agents
- For Thermoplastics
- Radiation Sensitizers
Degradation Promoters
Desiccant Additives
Fillers
- Microspheres (Hollow or Solid)
- Mineral or Other Inorganic Type
- Organic Type
Flame Retardants
- Concentrates
- Smoke Suppressants
Fragrance Additives
Hardeners |
Heat-Distortion Modifiers
Impact Modifiers
Low-Profile Additives for SMC/MBC
Lubricants
Mold Releases
Nucleating/Clarifying Agents
Plasticizers
Processing Aids
- Mineral/Inorganic Type
- Other Organic Types
- Polymeric Type
Purging Agents Additive Type
Reinforcements
- Aramid Fiber
- Carbon or Graphite Fiber
- Ceramic Fibers
- Continuous Fiber Rovings, Tows, Yarns
- Discontinuous Fibers (Chopped, Milled, Staple)
- Fabric, Mat, Veil, Felt
- Glass Fiber
- Mineral Fibers
- Nylon or PET Fiber
- UHMW PE Fiber
Release Agents
- External (Spray or Wipe On)
- Internal (Additive Type)
Resin Clean-up Solutions
Slip Agents
Stabilizers
- Heat Stabilizers for PVC
- Metal Deactivators
- UV Stabilizers
- UV Stabilizers Concentrates
Stripping Agents, Resin Removers
Surface Treatment Chemicals and Dispersion Aids (for Fillers,
Pigments, Reinforcements)
Surfactants
Thickeners for SMC/BMC
Thixotropic Agents
Viscosity Depressants |
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