To enhance the extensibility of OSB boards, they typically undergo drying and softening treatment. Since we are familiar with drying treatment, what about softening treatment? Do you have an understanding of it?
As we know, the primary purpose of softening treatment for wood is to increase its creative value by making it easier to bend, facilitating production processing, and improving its properties. The manufacturers often use hydrothermal treatment techniques for the softening treatment of wood. This method utilizes water to lubricate and expand the non-crystalline region of methyl cellulose, hemicellulose, and wood, providing more freedom of movement for the molecular structure. By gradually heating the outer and inner parts of the wood, the molecular structure gains sufficient energy. The expansion of wood is due to water entering the non-crystalline region of the wood, causing the non-crystalline regions of wood, hemicellulose, and methyl cellulose to expand, thereby enlarg the free space and improving the extensibility of the wood.
The basic principles of hydrothermal treatment for OSB boards is the same, but there are processing methods available depending on the specific materials and technical standards required. OSB board manufacturers often choose the appropriate treatment methods based on the specifications of wood characteristics.