Product introduction:
It is widely used in concrete mortar, gypsum products, wood pulp sponge, asphalt road and other fields. It has good effects on preventing coating cracking, improving water retention, improving production stability and construction suitability, increasing strength and enhancing adhesion to the surface.
Due to the capillary action of fiber structure, the water in the system is quickly transmitted to the slurry surface and interface, so that the water in the slurry is evenly distributed and the scaling phenomenon is obviously reduced. The bonding strength and surface strength are obviously improved. This mechanism also plays an important role in crack resistance due to the reduction of tension in the drying process. The dimensional stability and thermal stability of wood fiber play a good role in thermal insulation and crack resistance.
Product performance and characteristics
Lignocellulose has small specific gravity, large specific surface area, excellent thermal insulation, sound insulation, insulation and air permeability, uniform thermal expansion, no shell and cracking; Higher wet film strength and coverage effect.
Lignocellulose has excellent flexibility and dispersion. After mixing, it forms a three-dimensional network structure, enhances the support and durability of the system, and improves the stability, strength, compactness and uniformity of the system.
Wood fiber has strong anti freezing and heat resistance. When the temperature reaches 150 ℃, it can be insulated for several days; When it reaches 200 ℃, it can be insulated for tens of hours; It can also be insulated for several hours when it exceeds 220 ℃.
Wood fiber is easy to disperse in thermal insulation materials to form three-dimensional results, and can absorb water 6-8 times its own weight. The structure and characteristics improve the workability, operability and anti sliding performance of the material, and speed up the construction speed; The dimensional stability and thermal stability of wood fiber play a good role in thermal insulation and crack resistance; The water transmission function of wood fiber makes the hydration reaction between the slurry surface and the base sufficient, so as to improve the surface strength of thermal insulation materials, the bonding strength with the base and the uniformity of material strength.
Function of lignin fiber in polymer mortar
1.Crack resistance: the mechanical energy generated during solidification or drying is weakened by fiber reinforcement to prevent cracking.
2.Low shrinkage: the biological dimensional stability of wood fiber is good, the mixture will not shrink and settle, and improve its crack resistance.
3. Good liquid forced adsorption capacity: the wood fiber itself can absorb 1-2 times of the self weight of the liquid, and use its structure to absorb 2-6 times of the liquid.6倍的液体。
4. Anti sag: there will be no falling during construction operation and drying. This allows the thicker plastering to be completed at one time, and the wood fiber has good thermal stability even under high temperature conditions.
5. Easy dispersion: it is easy to mix with other materials, with uniform dispersion, good leveling, no sagging and splash resistance.
The mortar mixed with fiber has advantages over plain yarn slurry
1. Enhance crack resistance and improve crack resistance.
2. The toughness of the material is enhanced. Even after the production of micro cracks, the fiber can continue to resist the drawing effect of external forces.
3. High strength and high modulus fiber can enhance the tensile strength, bending strength and shear strength of mortar matrix.
4. Enhance the resistance to freezing and thawing.
5. Improve the fatigue resistance of plain mortar.
Because of the above advantages, the application field of fiber reinforced cement mortar is gradually expanded and can be used in all fields of dry powder mortar.
instructions
Because some functions of wood fiber are similar to cellulose ethers, the addition of Cellulose can be reduced by about 15-20%. The product is pre dispersed and pre soaked before use. If the original amount of water is retained, the amount of water added to the slurry mixed with wood fiber shall be increased by 6-10% on the original basis.