In the production of magnesium oxide boards, there are many reinforcing materials and modified materials, one of which is lignocellulosic fiber, which is the remainder of wood harvesting and processing, which accounts for about 50% of the harvested and processed wood resources. Branches, sawdust, shavings, etc. can be used as reinforcing materials and modified materials for magnesium cementitious materials.
The remaining residues of branches and secondary timbers, and the residual materials such as corners and shavings produced during the processing of wood, are processed into wood fiber, wood and other wood fiber materials, which are raw materials for wood fiber wood-based panels and also magnesium. Ideal for reinforcement and modification of the board. The sawdust produced by the processing of wood sawn timber is the main filling, reinforcing and modifying material used in the production of glass magnesium board products. It is an irreplaceable main filling material especially in the imitation wood products for producing glass magnesium sheets.
However, the use of lignocellulosic materials in the production of magnesium oxide panel, attention should be paid to the high sugar content of lignocellulosic fibers, especially when using newly harvested wood materials, such as when the moisture content of wood materials is relatively high (water content 60%), It will cause the water content in the raw material formula of the magnesium oxide board to be unstable, which will cause non-coagulation or retardation during the production of the product, so that the product completely loses strength.
When wood fiber is usually used as a magnesium cementitious material to produce products, the wood chips should be used for more than three months. The moisture content of wood chips should not exceed 20%, and the mud content should be less than 1%. When it is used as a magnesium oxide product in outdoor and high-humidity environments, it is preferred not to use or use less wood filler.
The above is the filling material of magnesium oxide board introduced by our company's professional and technical personnel - wood fiber, I hope to help you. We are a professional manufacturer of magnesium fireproof board. This product is a high grade A1 fireproof board. The flame retardant limit is more than 4 hours, and it does not contain asbestos, formaldehyde and other radioactive substances.