11results about How to "High static bending strength" patented technology

The invention provides a wood-plastic composite material preparation method, which comprises: S1, cutting and crushing a wind power blade recovered material to obtain a wind power blade powder material, and carrying out screening and surface treatment on the powder material; s2, uniformly mixing the wind power blade powdery material, wood flour and an auxiliary agent in proportion to obtain a mixed material; and S3, the mixed material is subjected to internal mixing treatment, the internally mixed material is subjected to hot press molding and cold press shaping, and the composite material is obtained. The WGFRP material in the retired wind power blade is used for preparing the wood-plastic composite material, so that the mechanical property and weather resistance of the composite material are remarkably improved, the service life of the material is prolonged, resource reutilization of wastes is realized, environmental pollution caused by landfill and incineration is reduced, the use amount of plastic in the production process is reduced, and the production cost is reduced. The carbon emission is reduced, and the influence on the environment is reduced.

The invention discloses an environment-friendly deformation-resistant reed wood composite shaving board and a preparation method thereof, and belongs to the technical field of boards. The reed wood composite shaving board is prepared from wood chips, reed fibers, basalt fibers, lignin fibers, plant extracts, nano silicon dioxide, acetylated distarch phosphate, a C30-45 alkyl cetearyl polydimethylsiloxane cross-linked polymer and a PEG-10 polydimethylsiloxane-vinyl polydimethylsiloxane cross-linked polymer according to a specific proportion. The adhesive is prepared from a methyl methacrylate cross-linked polymer, an MDI adhesive and an organic silicon waterproof agent. All the components are matched for use, the shaving board is prepared in a directional mode, the shaving board has excellent mechanical performance, crack resistance and deformation resistance, the environment-friendly performance is improved, and the use amount of glue is reduced. The novel formaldehyde-free adhesive and the plant extract are adopted to replace traditional formaldehyde-containing glue and a mildew-proof and insect-resistant agent, formaldehyde release is effectively avoided, and a healthier home decoration plate choice is provided for consumers.

The present application relates to the technical field of decorative panels, and specifically discloses a light green fireproof decorative panel and a preparation method thereof. A light green fireproof decorative panel, using polypropylene resin, polyvinyl chloride resin, caffeic acid modified reed straw fiber, shell powder and diatomaceous earth mixed filler modified with aluminum titanium composite coupling agent JTW‑1816 as main raw materials, using bean-based adhesive and MDI adhesive as binders to prepare a light green base material, using ultra-thin fiberboard as a decorative material, and using vinyl chloride copolymer emulsion, bean-based adhesive and MDI adhesive as finishing film materials, to jointly prepare a light green fireproof decorative panel with excellent performance. The light green fireproof decorative panel prepared in the present application has the advantages of being waterproof and moisture-proof, high wear resistance, high bonding strength, good impregnation and peeling performance, resistance to cold and heat cycles, pollution resistance, excellent flame retardant performance, safety and environmental protection.

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 carbon fiber reinforced soybean protein adhesive as well as a preparation method and application thereof, the adhesive comprises modified carbon fibers and a soybean protein matrix, and the modified carbon fibers are dispersed in the soybean protein matrix; the surface of the modified carbon fiber is rich in at least one active functional group of hydroxyl, carboxyl or epoxy group. According to the adhesive, the modified carbon fibers are combined with the soybean protein matrix, the bonding strength of the adhesive is enhanced, and when the adhesive is used for bamboo product bonding, the mechanical strength of bamboo products is improved, and the service life of the bamboo products is prolonged.

The present invention relates to a physical foaming floor, the floor comprises a UV coating, a wear-resistant layer, a color film layer, and a foaming floor substrate layer arranged in sequence, the UV coating is a surface layer, and the raw materials for preparing the foaming floor substrate layer include, by weight: 30-150 parts of PVC resin; 90-120 parts of light calcium carbonate; 1.0-4 parts of carbon nanotubes; 1-3 parts of toughening agent; 1-3 parts of molding agent; 20-40 parts of polystyrene; 50-200 parts of SPC grinding powder recovery material; 8-10 parts of stabilizer; 8-10 parts of plasticizer; 1-2 parts of internal lubricant; 1-2 parts of external lubricant; 0.3-1.0 parts of oxidized polyethylene wax; and 3-10 parts of physical foaming agent. The present invention obtains the foaming floor substrate layer by a physical foaming process, reduces the density of the foaming floor substrate layer, and reduces the cost of raw materials. Compared with the existing SPC floor, the product sound insulation, impact resistance, tensile strength, and static bending strength are improved. The foaming of the foaming floor substrate layer is more uniform than chemical foaming, and there is no odor.

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.