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Sabic is the first to introduce a breakthrough material based on advanced nanotechnology that can promote the efficient production of polyethylene terephthalate (PET) foam, which is used as the core material for sandwich structures.
LNP Colorcomp WQ117945 improves the control of nucleation and cell growth, thereby reducing cell size and a uniform and narrower cell size distribution. These properties can reduce the weight of the foam by minimizing resin absorption in the sandwich structure.
It can also potentially improve the shear strength/strain performance for better fatigue performance. The use of Sabic's new LNP Colorcomp compound to enhance PET foam can meet the changing needs of multiple industries, including marine, construction and construction, packaging and wind energy.
"Our new LNP Colorcomp WQ117945 compound may help expand the use of PET foam in a variety of applications, from building insulation and cladding, to hulls and decks, to the core of wind turbine blades," Sunamita Anunciação, LNP Business Unit Said Sabic Development Manager. "In addition to improving the mechanical properties of PET foam, our technology also helps to reduce weight, which opens up new opportunities for sustainable development. For example, lighter foam core materials can allow designers to make longer and more efficient Wind blades. Lighter materials can also reduce the environmental impact of transportation. Working with our customers, Sabic continues to develop solutions to improve performance and multiple aspects of sustainability."
The disposal of wind blades is becoming a global concern. Due to its huge size and complexity, most blades are currently sent to landfills. The use of PET foam in the core of wind turbine blades provides the industry with a strong, lightweight, and recyclable alternative to existing materials such as balsa wood and PVC foam. Reducing weight is also a key issue in the design of wind blades. Extending the length of the blade to increase the amount of energy captured will significantly increase the weight of the blade.
Compared with standard nucleating agents such as talcum powder, Sabic's LNP Colorcomp WQ117945 compound can significantly reduce the foam cell size (up to three times) while reducing the difference in cell size by up to five times. These factors help reduce the foam's absorption of resin during the composite manufacturing process, thereby making the blade lighter.
In terms of strength and other mechanical properties, high-density PET foam can compete with balsa wood while avoiding the natural changes of wood. In addition, as a thermoformable polymer, compared with balsa wood, PET foam provides greater freedom in the design and molding of wind blades. They also provide stable supply, cost-effectiveness, consistent material properties and less resin absorption.
In addition to being used as an effective nucleating agent in foaming processes such as extrusion foaming, injection foaming and bead foaming, Sabic’s new nanotechnology solutions can also be used as rheology modifiers to improve the melt Strength and thermoformability. The nanotechnology that Sabic is using can be applied to other resins besides PET, making it an ideal choice for a wide range of different industries.
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