Wood fiber 
 The wood fiber is a powdered cement, gypsum, lime and powder materials such as multi-functional additives. Wood fiber extracted from wood pulp by shredding, and bleaching, crushing, screening with different fiber length and weight of the finished product to adapt to the needs of different applications of materials. The lazy nature of the wood fiber is very strong, powder materials, it does not react with any other materials, only to play a physical role. 
 The mechanism of the wood fiber in powder materials 
 Strongly enhanced the thickening effect: wood fiber has a strong cross-linking function, and other materials mixed between the fibers immediately after lap like a blanket, this three-dimensional structure can be water or other liquids locked in the meantime, the longer the fiber , the greater the thickening effect. 
 The viscosity of the structure of the wood fiber can improve the operational performance: When the shear force on it (such as scraping, mixing, pumping), part of the liquid will be flung from the fiber structure of the matrix, leading to lower viscosity, improve workability. When the shear is stopped, the fiber structure is very quickly restore the moisture absorption and come back and restore the original viscosity. 
 Liquid coercive power: wood fiber can absorb 100% to 200% of the weight of liquid, and the structure of adsorbed weight of 2 to 6 times the liquid. 
 Crack resistance: freezing or drying process, mechanical fiber reinforcement can be weakened. 
 Low shrinkage: the dimensional stability of wood fiber is very good, which means that the mixture does not contract settlement, and to improve its crack resistance. 
 Anti-vertical: the construction operation and the drying process does not appear to fall phenomenon, which makes a thick plaster can be completed, even in high temperature conditions, the wood fiber has good thermal stability. 
 Extend the opening hours: due to the capillary action of the fiber structure inside the water can be quickly transferred to the slurry surface and interface, making the slurry within the system of water evenly distributed, can significantly reduce a skin phenomenon, and makes the bond strength and surface strength was increased, this mechanism is also obviously play a crack due to the reduction of tension in the drying process and the role of