6results about How to "High static bending strength" patented technology

The production line comprises a fiber material stirring system, a paving base plate conveying system, a lower-layer fiber material paving machine, an upper-layer fiber material paving machine, a pre-pressing machine, a stacking machine, a sandwich plate conveying and gluing system, a cold pressing machine, a plate dividing machine, a paving base plate returning system and a finished product processing system. The fiber material stirring system provides fiber materials to the upper-layer fiber material spreading machine and the lower-layer fiber material spreading machine through a fiber material conveying belt machine. The lower-layer fiber material spreading machine, the upper-layer fiber material spreading machine, the pre-pressing machine and the stacking machine are respectively arranged above the paving base plate conveying system at intervals along the conveying direction of the paving base plate conveying system; and the laminboard feeding and gluing system is arranged between the lower-layer fiber material spreading machine and the upper-layer fiber material spreading machine. The utility model has the advantages of high finished product quality, few production procedures, simple process, greatly shortened preparation period, high production efficiency and low cost.

The invention discloses a preparation method of a modified wheat straw composite board based on ZnCl2, and belongs to the technical field of board manufacturing, and the preparation method comprises the following steps: S1, chopping wheat straw, adding the chopped wheat straw into 0.5 mol / L hydrochloric acid, carrying out acid treatment, adjusting the pH value to be neutral by using deionized water after the treatment is completed, and carrying out suction filtration treatment to obtain a neutral filter material; s2, mixing the neutral filter material with the mixed solution, then adding NaClO powder for mixing, and then adjusting the pH value of the mixed solution to 10 through a NaOH solution to obtain TEMPO oxidized pulp fibers; s3, TEMPO oxidized pulp fibers are subjected to ethanol water cleaning treatment and then dispersed in a ZnCl2 solution to be evenly mixed, suction filtration treatment is conducted, a filter cake B is obtained, S4, the filter cake B, chitin and acetic acid are evenly mixed according to the mass ratio of 3: 4: 1 and then subjected to suction filtration treatment, a hot-pressing filter material is obtained, and S3, the hot-pressing filter material is put into a hot-pressing mold and subjected to hot pressing through a hot press to obtain the composite board. According to the invention, the preparation of the formaldehyde-free and full-biomass-source high-performance board is realized.

This invention discloses a mildew- and corrosion-resistant particleboard and its preparation method. The mildew- and corrosion-resistant particleboard prepared by this invention has high mechanical strength and good anti-corrosion and mildew-resistant effects. It is made from the following raw material components in parts by weight: 800-1200 parts of particleboard and 50-200 parts of composite adhesive. The composite adhesive is made from the following components in parts by weight: 35-160 parts of soybean glue, 5-20 parts of curing agent, 5-10 parts of mildew inhibitor, and 5-10 parts of corrosion inhibitor. The combined use of polyamide polyamine epichlorohydrin and dimethyloldihydroxyethylene urea in the adhesive components improves the static bending strength of the particleboard; the combined use of n-butylbenzisothiazolinone and dimethoxymethylsilylpropyloctadecyldimethylammonium chloride improves the mildew resistance of the particleboard; and the combined use of modified chitosan copper complex and ammonium pentaborate improves the corrosion resistance of the material, with synergistic effects.

The invention provides a high-strength moisture-proof medium-density fiber artificial board and a preparation method thereof, and belongs to the technical field of artificial board manufacturing and composite materials. The high-strength moisture-proof medium-density fiber artificial board is prepared from the following raw materials in parts by weight: 70-90 parts of wood fibers, 3-8 parts of surface modified reinforced fibers, 10-15 parts of an isocyanate adhesive, 2-5 parts of a moisture-proof agent, 1-4 parts of nano silicon dioxide, 1-4 parts of an interfacial compatible flame retardant and 1-3 parts of a curing agent. The board is endowed with extremely low water absorption thickness swelling rate, high strength, excellent moisture resistance and good flame retardance through the synergism of all the components, the board is suitable for a high-humidity environment, uniform dispersion and sufficient curing of the components are ensured by adopting a step-by-step sizing and mixing process and cooperating with a two-stage hot pressing process, the uniformity and stability of product performance are ensured, and the board is suitable for being used in a high-humidity environment. The common problems of agglomeration, non-uniform dispersion and the like of a multi-component composite system are solved.

The application provides a production process of a forest waste fiber-based automobile interior panel and belongs to the technical field of fiberboard processing. Fiber milk slurry is sprayed into a grinding chamber of a hot grinder, forest waste fibers and residual fiber milk slurry are uniformly mixed, and paraffin with 40-50% of mass percentage of p-t-butyl phenol formaldehyde resin after heating, melting, dissolving and dispersing is dissolved and dispersed, urea-formaldehyde resin glue contains 1-2% of mass percentage of zinc oxide. Compared with conventional fiberboards, vulcanizing agent p-t-butyl phenol formaldehyde resin and activator zinc oxide are crosslinked through subsequent vulcanization pre-pressing, curing and hot pressing, the strength of the fiberboard is improved, the use amount of urea-formaldehyde resin glue and the formaldehyde release amount are reduced, the static bending strength, internal bonding strength, surface bonding strength and water absorption thickness expansion rate of the fiberboard are high, the formaldehyde release amount is low, the raw material sources are wide, the cost is low, the forest waste fibers of landscaping and forestry can be treated, and the application is green and environment-friendly.

The invention provides a biologically active component modified veneer based on a molecular nest technology and a production process thereof, and the production process comprises the following steps: mixing eucalyptus wood shavings and an active modified adhesive, paving, pre-pressing, and hot-pressing and curing to obtain an active plain board; the preparation method comprises the following steps: pretreating decorative base paper by using a folium artemisiae argyi extract, impregnating by using an impregnating solution containing modified molecular nests, and drying to obtain active impregnated paper; and spraying an interface treating agent on the surface of the active plain board, drying with hot air, covering the active impregnated paper on the active plain board, and carrying out hot pressing, cooling and edge cutting to obtain the product. The invention provides a veneer modified by bioactive components based on a molecular nest technology. The mechanical property, antibacterial durability and fragrance retention time of the veneer are improved; the interface bonding force between the adhesive and the plant fibers is improved, the problem that active ingredients break out and release too early is solved, and the interface bonding strength between the plain board and the impregnated paper is enhanced.