Coace® B1-1 is a maleic anhydride modified polypropylene with high grafting rate.
When it comes to improving the adhesion between infill materials and the polypropylene matrix, coupling agents can be added to the polypropylene base compounds. Some commonly used coupling agents in polypropylene base compounds include:
1.Maleic Anhydride (MAH) Grafted Polymers: These are polymers that have been modified with maleic anhydride to introduce reactive groups that can bond with polar materials such as polyamides. They are used as compatibilizers to improve the adhesion between polyamide and polypropylene blends.
2.Isocyanate-based Coupling Agents: These are coupling agents that contain isocyanate groups which react with functional groups present on the surface of polyamides, such as amino and hydroxyl groups. They are used to improve the adhesion between infill materials and the polymer matrix.
3.Silane-based Coupling Agents: These are coupling agents that contain silane groups which bond with both organic and inorganic surfaces. They are used to improve the adhesion between glass fiber and the polymer matrix in composite materials, which can include blends of polyamides and polypropylene.
Overall, the use of coupling agents or compatibilizers is an effective approach to enhance the adhesion between PA and PP, as well as infill materials and polymer matrix. This can result in improved mechanical and thermal properties of the composite material.
Coace® B1-1 is a maleic anhydride modified polypropylene with high grafting rate.
When the grafting rate of the maleic anhydride onto the polypropylene is high, it means that a significant amount of maleic anhydride has been incorporated into the polymer backbone. This results in a copolymer with a higher density of reactive groups available to bond with polar materials, which can improve the adhesion between the polypropylene and other materials in a composite.
The high grafting rate of maleic anhydride onto polypropylene can also result in improved mechanical properties of the copolymer. The addition of maleic anhydride can increase the stiffness and strength of the material, while also improving its thermal stability.
Characteristics | Value | Unit | Test Method |
Appearance | Granules | ||
Color | White translucent | ||
Density | 0.92 | g/cm3 | ASTM D792 |
Melt Flow Rate(190℃2.16kg) | 5-10 | 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%.
To be used as coupling agent in polypropylene base compounds to strengthen the
adhesion between infill materials and polymer matrix.
To be used as compatibilizers to improve the compatibility between polyamide and polypropylene.
B1A is a chemically functionalized polypropylene with high content of maleic anhydride.
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