Products Description
Coace® W1L-2 is a maleic anhydride functionalized polyethylene with highgrafting rate. It is in granule form.
One of the most difficult problems in producing high-performance WPC products is generating strong interfacial adhesion between the hydrophilic wood fibers and the hydrophobic polymer matrix. This interface is crucial for ensuring efficient stress transmission and maximizing the final composite’s mechanical, thermal, and weathering properties. Our maleic anhydride functionalized coupling agent was developed specifically to address this issue and improve the compatibility of wood and plastic in WPC formulations.
Our maleic anhydride functionalized polyethylene coupling agent is a versatile and effective option for increasing the compatibility and performance of wood-plastic composites. It significantly improves mechanical characteristics, weatherability, and sustainability by forming strong interfacial adhesion between the wood fibers and polymer matrix. We welcome the opportunity to work with customers and assist them maximize the potential of their WPC materials.
Advanced Equipment!
Equipped with advanced production lines and experimental testing center to ensure product quality.
Strong Technical Force!
More than 10 experienced technical R&D staff drive continuous innovation.
Characteristic
| Characteristics | Value | Unit | Test Method |
| Appearance | Granules | ||
| Color | White or light yellow | ||
| Density | 0.92 | g/cm3 | ASTM D792 |
| Melt Flow Rate（190℃ 2.16kg） | 0.5-3 | g/10min | ASTM D1238 |
| Maleic Anhydride Content | High | wt% | COACE Method[1] |
Notes [1] LOW＜0.4wt%; Middle(0.4wt%-0.8wt%); High≥0.8wt%.
- Maleic Anhydride Functionality：Our coupling agent is composed of a polyethylene polymer grafted with maleic anhydride (MAH) functional groups. These cyclic anhydride moieties are extremely reactive and can create covalent connections with the hydroxyl groups on the surface of wood fibers. This establishes a strong physical and chemical bond between the polymer and the wood, significantly increasing interfacial adhesion.
- Improved mechanical properties：By improving the wood-plastic interface, our MAH-grafted polyethylene coupling agent directly improves the mechanical performance of WPCs. We observed up to 30% gains in tensile strength, flexural modulus, and impact resistance as compared to unaltered WPC formulations. The improved stress transfer allows the wood fibers to better strengthen the polymer matrix.
- Enhanced weatherability：Outdoor applications expose the wood component of WPCs to UV light, moisture, and other environmental variables that might degrade it. Our maleic anhydride coupling agent reduces weathering by forming a more robust surface that protects the wood fibers. This improves the long-term color and dimensional stability of WPC products.
Advantage
Broad Compatibility：Our coupling agent’s polyethylene backbone is very compatible with a wide range of thermoplastic resins widely used in WPC manufacturing, such as polyethylene, polypropylene, and PVC. This adaptability enables the same coupling agent to be utilized across numerous WPC product lines and formulations.
Customization and Tech Support：To satisfy our customers’ individual needs, we provide the option to alter the properties of our maleic anhydride functionalized coupling agent. To improve performance for a specific WPC formulation and end-use application, adjustments can be made to the PE base polymer, MAH grafting amount, molecular weight, and other parameters.
Our polymer scientists and application engineers are also accessible to provide technical assistance throughout the development, testing, and implementation phases. We collaborate extensively with customers to guarantee that our coupling agent integrates seamlessly and achieves the anticipated improvements in mechanical, weathering, and overall WPC performance.
Sustainability and Circular Economy：In addition to its technological advantages, our MAH-grafted polyethylene coupling agent promotes sustainability and the shift to a more circular economy. Polyethylene is a naturally recyclable polymer, and the coupling agent may be efficiently recycled alongside WPC waste streams.
This circularity reduces plastic waste, lowers carbon footprints, and allows for the reuse of precious material resources. As customers and regulatory authorities become more environmentally sensitive, our coupling agent’s sustainability features make it an increasingly appealing alternative for WPC makers.
Our advantage
Global Supply Chain!
Sound Storage And Logistics Supply Chain System
Technical Support
After-sales protection
Focus • Achievement • Excellence!
Products Customized
Focus on R&D
Global Services
Coace Certification!
ISO9001:2015 Certification
ISO14001:2015 Certification
EU REACH registration
Korea K-REACH pre-registration
Enterprise advantage!
Layout at home and abroad, wonderful for mixing
Domestic marketing layout
Overseas marketing layout
Application
Typical Application
To be used as coupling agent for polyethylene based compounds, like LSZHcablecompounds, WPC compounds,etc.
To be used as bonding strength in coextrusion processes between polyethyleneorethylene copolymers and different materials, like polyamides, EVOH, etc. It iscanbediluted by LLDPE, or LDPE.
To be used as a impact modifiers for polyamide conditions.
Application Industry
Construction and Building Materials Industry
In this industry, the coupling agent is utilized to create wood plastic composite (WPC) items such outdoor decking, railings, borders, fences, and patio furniture. Coupling agents can strengthen the interfacial interaction between wood fibers and polymer matrix, increasing the mechanical characteristics, weather resistance, and overall longevity of WPC construction materials.
Automotive industry
In the automotive sector, this coupling agent can be used to make WPC automotive elements such interior trim, engine compartment parts, and some exterior body pieces. Coupling agents help to optimize the performance parameters necessary for these crucial automotive applications.
Consumer Goods Industry
The maleic anhydride coupling agent is utilized in the production of WPC consumer products such as gardening tools, sporting goods, and domestic appliances. These consumer products benefit from coupling chemicals, which strengthen the wood-plastic interface bond, improving mechanical qualities and weather resistance.
Industrial uses.
In addition to the construction, automotive, and consumer goods industries, this coupling agent is commonly utilized in the WPC production of industrial products such as pallets and packing materials, pipes and conduits, and machinery guards.
In conclusion, this maleic anhydride functionalized coupling agent plays an important role in a variety of industries, including construction, automotive, consumer goods, and industry, by improving the compatibility, mechanical characteristics, and long-term durability of wood-plastic composites.
