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Plastic Additives Stabilization Antioxidant Masterbatch
Plastics are ubiquitous in our daily lives, finding applications in various industries due to their versatility. However, the longevity and performance of plastic products can be compromised over time due to factors like thermal degradation and oxidation. To ensure the resilience of polymers, the use of antioxidant masterbatches has become a crucial aspect of polymer stabilization.
Antioxidants act as a form of insurance for polymers, preventing thermal degradation and inhibiting oxidation, ultimately preserving the appearance and physical properties of the end product. These compounds are broadly categorized into primary and secondary antioxidants, each serving a specific function in the stabilization process.
Primary antioxidants are designed to protect the finished product, ensuring its performance throughout its service life. Typically based on phenolic chemistry, these antioxidants act as a robust shield against the damaging effects of oxidation.
Secondary antioxidants play a pivotal role as process stabilizers, safeguarding the polymer during various heat-intensive processing stages. Commonly utilizing phosphites or thioesters, these antioxidants provide an effective defense against thermal stress during manufacturing.
The combination of primary and secondary antioxidants is a common practice, offering comprehensive protection for polymers. This dual approach ensures that the polymer is shielded both during processing and throughout its entire lifecycle.
Antioxidant stabilizers play a critical role in breaking the oxidation cycle, guaranteeing the continuous performance of the polymer. Specific product recommendations, such as those from Ampacet, are highlighted for their effectiveness in disrupting the oxidation process.
The Antioxidant Masterbatch formulated by our company is based on stearically hindered phenolic antioxidants, expertly dispersed in a polyolefin carrier. This masterbatch plays a pivotal role in preserving the gloss and mechanical properties of the end product.
Applications of this masterbatch include gel reduction and die lip buildup control in polyethylene film extrusion, as well as process stabilization in polypropylene fiber production. Careful control of the Melt Flow Index (MFI) ensures high-quality trouble-free production.
- Long-term thermal stability
- Protection against polymer degradation during repeated processing
- Improvement in aging resistance during high-temperature processing
- Excellent dispersion for uniform performance
- Formulated from phenolic antioxidants for robust protection
- Prevention of product degradation at high temperatures
- Maintenance of gloss and mechanical properties
- Better stabilization of the polymer during processing
- Enhancement of the useful life of plastic products
Recommendation:
- Compatibility: LD / LLDPE / EVA / PP
- Dosage: 1%-5%
- Prevents decomposition
- Suitable for film and fiber producers
Oxidation and heat aging in plastics can initiate a chain reaction, resulting in the formation of free radicals and the degradation of polymer chains. Cesa Nox antioxidant masterbatches, recommended in this article, help maintain the shine and transparency of plastics, preventing yellowing, surface cracking, and odors. These masterbatches also play a crucial role in preserving mechanical properties like impact resistance, elongation, and tensile strength throughout the plastic life cycle.
In conclusion, the use of antioxidant masterbatches is a cost-effective and efficient strategy to ensure the longevity and performance of plastic products. By incorporating these stabilizers, manufacturers can produce high-quality plastics that withstand the challenges posed by thermal stress and oxidation, contributing to a sustainable and durable future for polymer-based materials.
Wide Application of Our Masterbatches
Our masterbatches find a multitude of applications across diverse industries. Whether in plastics, textiles, or various manufacturing processes, our masterbatches play a pivotal role in enhancing product quality and performance. With customizable formulations, they offer color consistency, UV protection, flame resistance, and more, making them the go-to solution for countless applications. From automotive parts to packaging materials, our masterbatches are the trusted choice for achieving superior results across a wide spectrum of industries.
Textile
Automative
Cosmetics & Toiletries
Medical
Consumer Electronics
Food and Drink
Household
Pet Care
Cosmetics & Toiletries
High Compatibility oF Our Masterbatch
Our custom masterbatches are designed to match specific polymers, ensuring optimal performance when incorporated into your selected material. We have the capability to produce masterbatches suitable for a variety of polymers mentioned below, and many more. If you’re working with a material that isn’t listed here, please don’t hesitate to reach out to our knowledgeable technical team to explore the possibility of meeting your specific needs.
LDPE
Low Density Polyethylene – Somewhat more translucent than HDPE and considerably more pliable, primarily employed in flexible packaging, tote bags, pliable tubing, film applications, and similar uses. Like HDPE, it has limited transparency characteristics. It exhibits outstanding chemical resistance to alcohols, acids, and alkalis but has restricted resistance to hydrocarbon solvents and mineral oils. Prolonged exposure to UV radiation can initiate degradation.
HDPE
High-Density Polyethylene – Featuring a somewhat milky-white appearance, this material finds wide application in rigid bottle packaging, injection-molded caps and closures, crates, and more. Its natural opacity can limit the degree of transparency attainable. HDPE exhibits superior chemical and solvent resistance when compared to LDPE.
PPHO / PPCO
PPCO Random & PPHO – A polymer with moderate clarity, employed in the production of caps and closures. It is also utilized for crafting household items, buckets, toys, and storage containers. Polypropylene offers flexibility without significant limitations on color or special effects. Random copolymer boasts greater clarity compared to homopolymer and is better suited for creating translucent shades.
PPCO Block – Similar to PPCO but enhanced for increased impact resistance. An additive renders the polymer white, resulting in high opacity. This characteristic may limit the achievable transparency.
PET
Polyethylene Terephthalate (PET) – Polyester materials exhibit robust mechanical strength along with excellent chemical resistance and barrier properties. PET is frequently chosen for the production of carbonated beverage containers. Moreover, polyester can be spun and employed in textile manufacturing for clothing. PET is highly transparent, making it an excellent choice for translucent packaging, although a subtle hint of “yellowing” may impact extremely light tints.
PBT
Polybutylene Terephthalate – A crystalline thermoplastic engineering polymer frequently employed as an insulating material within the electronics sector. This substance belongs to the polyester category, showcasing a remarkable equilibrium of attributes and processing qualities.
GPPS
General Purpose Polystyrene – Exhibiting a glass-clear appearance but possessing minimal impact resistance, this material finds its primary application in CD cases. Its notable clarity renders it suitable for creating translucent hues, although an occasional violet tint may be discernible.
HIPS
High Impact Polystyrene – Derived from GPPS by incorporating an impact-enhancing agent to boost its resistance to impacts. This added component results in the polymer becoming white, and different formulations provide varying degrees of opacity. Typically employed in the fabrication of game pieces, toys, and similar items. Its pronounced whiteness can pose challenges when aiming for translucent coloration. Specialized alternatives like K-Resin and Styrolux are accessible in the market to attain the same level of translucency as GPPS.
ABS
Acrylonitrile Butadiene Styrene (ABS) – A more robust iteration of High Impact Polystyrene (HIPS) employed in high-value components. ABS exhibits greater durability compared to HIPS-made components, although it encounters similar challenges when attempting to achieve translucent colorations. Just like HIPS, ABS offers specialized translucent variants. Owing to its durability, ABS is commonly used in crafting casings for power tools.
PA66 / PA6
Polyamide (6, 66) – Nylon represents a versatile grade extensively employed in mechanical construction and maintenance. Its popularity stems from its excellent blend of mechanical strength, rigidity, mechanical damping characteristics, and effective electrical insulation capabilities. Consequently, nylon is a preferred material for manufacturing electrical enclosures. PA66 serves as a common alternative to metal across diverse applications, with its chemical and physical attributes closely resembling those of PA6. PA6 exhibits superior impact resistance and resistance to solvents, albeit with a heightened susceptibility to moisture absorption.
SAN
Styrene Acrylonitrile Copolymer – Possessing transparency and outstanding chemical and heat resistance, SAN also boasts good rigidity, tensile strength, and flexural strength. Thanks to its high-gloss finish, SAN is commonly chosen for cosmetic packaging purposes. However, achieving light tint colors with SAN can be challenging due to the violet dyestuffs inherent in the material, which are utilized to enhance its visual appearance during manufacturing.
PETG
Polyethylene Terephthalate Glycol – PET with the incorporation of glycol. This glycol addition enhances flow properties but diminishes strength. PETG can be extruded to create bottles and can be formed into sheets for producing ‘blister’ style packaging.
TPE / TPU
Thermoplastic Elastomer (TPE) or Thermoplastic Polyurethane (TPU) – TPU finds diverse uses in applications such as automotive instrument panels, caster wheels, power tools, medical devices, as well as various extruded film, sheet, and profile applications. TPEs are employed across a wide range of applications in industries spanning automotive, medical, construction, electrical, appliances, packaging, and industrial sectors.
Frequently Asked Question
Frequently asked questions about our masterbatch
What is masterbatch?
Masterbatch is used to add colour or enhanced properties to plastic components. It’s a concentrated formula of colourants and/or effects and/or additives, combined with fillers, encapsulated within a carrier plastic resin. Masterbatch is supplied in pellet form to be dosed into raw polymer for use in plastic manufacturing. Masterbatch can be used with virgin polymer or used with recycled plastic. We encourage customers to consider using PCR (post-consumer recycled) resins wherever possible. Want to know more? Check out our detailed article for a deeper explanation of masterbatch and its incredible role in enhancing product colours. Click here to contact us!
Why do I need masterbatch?
Anyone creating a coloured plastic item will tend to require a coloured masterbatch. Our factory can develop and supply plastic colourants in the form of masterbatches, for plastic moulders to use in production. Masterbatch is almost always the preferred choice for colouring plastics. Most coloured plastic components we encounter in our daily lives will be coloured with masterbatch. As the pigments or dyes are encapsulated within a pellet, masterbatch ensures a much cleaner process than would otherwise be experienced by using liquid colours in plastic manufacturing. This can minimise waste and significantly reduce downtime in production. It also allows very accurate control of colour dosing and distribution. It’s not just about colour though, masterbatches can also be used to achieve a number of special finishes within plastics. Additive masterbatches can improve processing and enhance the properties of end components.
Which polymers do we manufacture masterbatches for?
Generally speaking, our factory provides polymer specific masterbatches for use in HDPE, LDPE, PPCO, PPHO, PET, PBT, GPPS, HIPS, ABS, PA66/PA6, SAN, PETG and TPE/TPU. Our universal colour range is designed for use in a variety of polymers. We can customize the masterbatch as same as our clients require.
What let down rate should I use?
Anyone creating a coloured plastic item will tend to require a coloured masterbatch. Our factory can develop and supply plastic colourants in the form of masterbatches, for plastic moulders to use in production. Masterbatch is almost always the preferred choice for colouring plastics. Most coloured plastic components we encounter in our daily lives will be coloured with masterbatch. As the pigments or dyes are encapsulated within a pellet, masterbatch ensures a much cleaner process than would otherwise be experienced by using liquid colours in plastic manufacturing. This can minimise waste and significantly reduce downtime in production. It also allows very accurate control of colour dosing and distribution. It’s not just about colour though, masterbatches can also be used to achieve a number of special finishes within plastics. Additive masterbatches can improve processing and enhance the properties of end components.
What is the cost of our color matching service?
A colour match will usually be free, we’ll do the match and post sample plaques free of charge. On rare occasions where specialist constituents are needed to complete the match then our factory will be in touch to discuss any associated costs before we start work.
How long will it take to get a color match?
It will usually take our team 3-5 working days to dispatch a color match sample following receipt of a new color match request. Our team process several matches every day, if we have an exceptionally high volume of matches to produce then leadtimes may be longer. We advise all customers to request matches as soon as they can, in order to avoid any delays.
Can I get a free sample?
In many cases, small samples can be obtained free of charge. Please call us to discuss your requirements. Postage costs for samples will be dependant on location.
How long will it take for me to get a sample?
A color sample from our universal range can often be delivered on a next day service. If you request a sample for a custom color match then this will typically be dispatched within 5-7 working days of receipt of that request, along with your sample plaques.
What are the minimum order quantities for masterbatches?
Universal masterbatch: 1kg
Custom masterbatch: 5kg
Custom compounds: 25kg
Universal roto powders: small lots available in multiples of 20kg
Custom roto powders: 1,200kg
How long will it take for my order to be dispatched?
Universal masterbatch: from one working day (dependent on current stock availability)
Custom masterbatch: from five working days (dependent on current production schedules)
Custom compounds: from five working days (dependent on current production schedules)
Universal roto powders: from one working day (dependent on current stock availability)
Custom roto powders: from three weeks (dependent on current production schedules)
Please remember to allow time for delivery. Our deliveries are reliant on external courier services.
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