Antibacterial flame-retardant decorative fiber board

Abstract

The invention belongs to the technical field of polyethylene fibers, and particularly relates to an antibacterial flame-retardant decorative fiber board. The fiber board is composed of 5-15% of bleached sulfate softwood pulp, 40%-70% of polyethylene short fibers, 5-30% of chopped polypropylene fibers, 5%-25% of chopped carbon fibers and 0.5-10% of composite microcapsules, the tensile strength of the fiber board can reach 172.2-178.5 MPa, the elongation at break is 1.89-2.06%, the modulus is 16.9-18.2 GPa, meanwhile, the added composite microcapsules have the function of integrating multiple antibacterial and flame-retardant effects, and the fiber board is suitable for being used as an antibacterial and flame-retardant material. The instant release amount of the flame retardant is large, the long-acting broad-spectrum antibacterial effect can be achieved, and the flame retardant can be widely applied to the fields of automobiles, furniture and the like.

Description

technical field [0001] The invention belongs to the technical field of decorative fiber plates, and in particular relates to an antibacterial and flame-retardant decorative fiber plate. [0002] technical background [0003] Polyethylene (PE) is a semi-crystalline thermoplastic polymer material with stable chemical properties, small mass, corrosion resistance, good flexibility, easy processing and molding, and excellent mechanical properties. Polyethylene is a thermoplastic resin rich in raw materials and widely used. It is often used to make packaging materials, anti-corrosion materials, films, communication cables, pressure-bearing parts, etc. It has become one of the indispensable materials in various fields such as production and life. At present, its consumption It has accounted for about 1 / 4 of the total plastic. However, the mechanical strength of polyethylene materials is usually low, and under the intertwining of longer fibers, the mechanical properties can be impro...

AI Technical Summary

Problems solved by technology

However, the mechanical strength of polyethylene materials is usually low, and under the intertwining of longer fibers, the mechanical properties can be improved to a certain extent, but there are also a large number of pore structures, resulting in high air content and reduced flame retardant effect. Therefore, how to use a simple production process to achieve a polyethylene material with good mechanical properties is of great significance to it.

At present, studies have shown that high-molecular-weight or ultra-high-molecular-weight polyethylene is often used to improve the performance of polyethylene fibers, but it is difficult to achieve a good uniformity of the blended material in the production process, which greatly increases the production process of large-scale production. Addition of materials such as equipment cost and dispersion

On the other hand, polyethylene fiber materials need to increase flame retardancy in many fields to avoid flammability caused by high temperature or slow down the tendency of fire spread. In order to achieve good flame retardancy, usually when preparing polyethylene fibers, add Mixing a flame retardant into the fiber or coating a layer of flame retardant coating on the surface of the formed fiber will affect the performance of the fiber. It is easy to cause the flame retardant to fall off, and even cause environmental pollution; Chinese patent CN106243471 discloses a kind of flame-retardant wood fiber reinforced polyethylene flexible coil and its manufacturing method, which adopts melamine resin for wood fiber and flame retardant, compatible The intumescent flame retardant system is formed by coating functional additives such as additives and lubricants, in which wood fiber is used as the carbon source of the flame retardant system. After the wood fiber is coated with melamine resin, there is almost no contact with the polyethylene fiber. The problem to be solved The wood fiber reinforced polyethylene material is not difficult to reflect in the technical scheme; Chinese patent CN 112376123 A discloses a microencapsulated ammonium polyphosphate flame-retardant ultra-high molecular weight polyethylene fiber and its preparation method, the matrix fiber in the invention Ultra-high molecular weight polyethylene fibers are used, and the flame-retardant effect is improved by adding microencapsulated ammonium polyphosphate. The microcapsules are coated with melamine-formaldehyde resin, and their oxygen index can reach more than 27%, but the melamine used in this invention -Formaldehyde resin wraps the flame retardant. At high temperature or even reaching the flammable point, the resin can produce toxic gas, which threatens human health and causes environmental burdens

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