The Fraunhofer Institute for Structural Durability and System Reliability (hereinafter referred to as LBF) developed a new type of bio-based exterior wall insulation material in a two-year project, which has competitive advantages in manufacturing and processing. And provides the performance required by the market-leading polystyrene insulation board.
Polystyrene foam board is a commonly used thermal insulation material, which is used in more than 90% of the full thermal insulation composite material system.
Due to the usability and price issues involved, they have few bio-based alternatives.
Fraunhofer LBF has developed a price-competitive bio-based hybrid material for polystyrene foam boards.
These materials are made of agricultural and forestry wastes such as softwood and corncobs, aqueous resins based on lignin, and mineral flame retardant fillers.
In order to make plates, bio-based hard particles (including a mineral flame retardant) are used to coat the porous particles of renewable raw materials, and then pressed.
The produced board has the same performance as the new generation of polystyrene foam hybrid materials in fires, achieving a component density of 120 kg / m⊃3; and a thermal conductivity of 40 mW / m K. Its open cell structure is water Vapor diffusion provides control conditions.
Since the structure and processing are similar to polystyrene foam hybrid materials, OrganoPor materials can be produced economically. Another advantage is the availability of raw materials. All these make OrganoPor very likely to be an ecological substitute for thermal insulation materials.