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34results about How to "Strong surface hardness" patented technology

Straw, rice hull fibre base wood-plastic composite material and manufacture method thereof

The invention relates to a wood plastic composite material and a preparation method thereof, in particular to a straw, a rice husk fiber base wood plastic composite material and a preparation thereof. The straw and the rice husk fiber base wood plastic composite material comprise the following components according to weight percentage: melamine resin: 3.5 percent; the straw and the rice husk fiber or the mixture of the straw and the rice husk: 60 percent; polyethylene with low density: 32 percent; solubilizer: 2 percent and lubricant: 2.5 percent. The wood plastic composite type building material of the invention adopts high technology, and utilizes waste plastics and a large amount of straw (rice straw, rice husk) powder to mix and extrude various formed hollow sectional materials of wood plastic at high temperature by fiber strengthening, and the wood plastic composite material is a typical environmental-friendly material. The wood plastic composite material is characterized by sun block, waterproof, anti-moth, anti-freezing and anticorrosion, and the wood plastic composite material without formaldehyde is strong in wood sense, high in surface hardness, strong in wear resistance, good in antiaging, long in service life, easy in processing, is suitable for the preferable material of decoration indoors and outdoors, and is similar to wood in shape but better than wood in property.
Owner:SHAOXING YINYING TEXTILE

Anodic oxidation die-casting aluminum alloy material and preparation method thereof

PendingCN111748714AExpand the scope of applicationImproved surface hardness and mechanical propertiesAnodisationAnodic oxidationCorrosion resistant
The invention discloses an anodic oxidation die-casting aluminum alloy material and a preparation method thereof. The anodic oxidation die-casting aluminum alloy material comprises, by mass percent, 2.5-3.5% of Mg, 0.8-1.2% of Mn, 0.2-0.5% of Co, 0.1-0.2% of Cr, 0.01-0.03%of Sr, less than or equal to 0.2% of Si, less than or equal to 0.15% of Fe, less than or equal to 0.05% of Cu, and the balanceAl. According to the material and the method, by optimizing components of an aluminum-manganese system die-casting aluminum alloy material, the material can achieve a good anodic oxidation effect, thedefects of aluminum alloy surface hardness, wear resistance and the like are overcome, and the application range is expanded; and meanwhile, the preparation method is simple, the corrosion effect ofan aluminum alloy on a casting crucible can be reduced, meanwhile, the plasticity of the aluminum alloy is increased, the generation of defects such as thermal cracks, shrinkage cavities, shrinkage porosity and the like is reduced, a honeycomb porous structure on the surface of an anodic oxidation film generated on the surface of the aluminum alloy through the anodic oxidation process is uniform in dye coloring, and the compact anodic oxidation film formed after pore sealing has high surface hardness, wear resistance and corrosion resistance.
Owner:ANHUI SCI & TECH UNIV

Door and window profile preparation method based on building energy-saving PVC door and window cross-linking technology

The invention discloses a door and window profile preparation method based on a building energy-saving PVC door and window cross-linking technology and relates to a door and window profile preparation method. The problem that various performance indexes of doors and windows cannot meet the service requirements because door and window profiles of PVC materials are degraded is solved. The preparation method comprises the following steps: 1, by taking high-energy electron rays as a radiation source, performing inner and outer layer co-extrusion on to-be-prepared PVC plastics and an aluminum lining, and adding a cross-linking agent onto an outer surface layer of the to-be-prepared PVC plastics; 2, breaking C-CL bonds of the PVC on the outer surface layer of the to-be-prepared PVC plastics under the action of the radiation source, and forming free radicals; 3, carrying out an auto-polymerization reaction on the free radicals generated by the cross-linking agent under the action of the radiation source, and replacing CL in a PVC long chain of the outer surface layer of the to-be-prepared PVC plastics in the step 2 so as to form effective grafting; and 4, adjusting the intensity of the radiation source, forming a PVC-cross-linking agent-PVC long chain, and finally forming meshed distribution of the cross-linking agent branched chain. The method disclosed by the invention is used for preparing the door and window profiles.
Owner:HARBIN ZHONGDA PROFILE TECH

Organic silicon modified fluorinated polyacrylate emulsion, preparation method thereof, prepared unconventional energy drilling and production coating and application thereof

The invention provides an organic silicon modified fluorinated polyacrylate emulsion, a preparation method thereof, a prepared unconventional energy drilling and production coating and application thereof, and relates to the technical field of unconventional energy drilling and production coatings. The preparation method specifically comprises the following steps: heating and uniformly mixing lauryl methacrylate, perfluoropolyether methacrylate, vinyltriethoxysilane and n-butyl methacrylate, adding an emulsifier to prepare a pre-emulsion, adding an initiator in batches, and heating for reaction to obtain the organic silicon modified fluorinated polyacrylate emulsion. And the organic silicon modified fluorine-containing acrylate is copolymerized with styrene and toluene to obtain the organic silicon modified fluorine-containing acrylate unconventional energy drilling and production coating. Through detection, the coating has excellent hydrophobic scale inhibition performance and good bonding strength, the adhesive force of the coating to a metal substrate can be greatly improved, and the coating has the advantages of high bonding capacity, high surface hardness and good wear resistance and scrubbing resistance. The preparation process is simple to operate and low in energy consumption, the production process is easy to control, and large-batch continuous production can be realized.
Owner:CHINA UNIV OF GEOSCIENCES (BEIJING) +2

Thermal transfer PET film UV-curable varnish and preparation method thereof

The invention provides a heat-transfer-printing PET film ultraviolet-curing varnish and a preparation method thereof. The varnish comprises the following components in percentage by mass: 35-50% of hexafunctional polyurethane acrylate, 5-10% of trifunctional polyurethane acrylate, 10-20% of thermoplastic acrylic resin, 0.5-1% of leveling agent, 20-30% of organic solvent and 5-10% of photoinitiator. According to the heat-transfer-printing PET film ultraviolet-curing varnish, the paint film has the advantages of favorable adhesive force, high surface hardness, favorable scratch resistance of the surface, and favorable chemical resistance. The cured paint film has favorable flexibility, and can not crack even after being bent by 90 degrees. In the preparation method, the mild and nontoxic organic solvent is utilized, and has the advantages of small out-emission amount and no environment pollution; the heat-transfer-printing PET film ultraviolet-curing varnish is used instead of the traditional thermocuring transfer printing paint; when the heat-transfer-printing PET film ultraviolet-curing varnish is in use, the paint film can become dry and form a film after being irradiated by ultraviolet light for 10-20 seconds, and thus, the method has the advantages of higher production efficiency, simple film-forming technique, low requirements for film-forming equipment and energy saving, and further lowers the cost.
Owner:东周化学工业(昆山)有限公司

Graphene wood-plastic micro-foaming material with uniform foam and preparation method of micro-foaming material

The invention discloses a graphene wood-plastic micro-foaming material with uniform foam and a preparation method of the micro-foaming material. The method comprises the following steps: a, washing wood powder by using an alkali, performing draining, performing ultrasonic wave-vacuum synergetic dispersion on the dried wood powder, silicon micropowder and graphene under the protection of an inert gas, performing washing by using water, performing drying, and linking the silicon micropowder, the wood powder and the graphene to form micro fine powder to obtain composite powder under the action ofthe alkali at the surface of the wood powder treated by the alkali; b, mixing the composite powder, resin and a zeolite molecular sieve to prepare a mixed material; c, performing extrusion granulation on the mixed material to obtain mixed granules; and d, adding a foaming agent into the mixed granules, and performing micro-foaming injection molding to obtain the wood-plastic composite material with the uniform foam. The method disclosed by the invention greatly eliminates moisture in the bamboo wood powder, reduces high-temperature damage to the wood powder structure, and has a safe and high-efficiency drying manner; and the obtained bamboo wood powder has good and strong interface bonding performance with the resin, micropores generated by foaming have regular shapes, small pore diameters, uniform distribution, foaming quality is good, so that the composite material has good surface hardness, good toughness, high strength, and a wide application range.
Owner:CHENDU NEW KELI CHEM SCI CO LTD

Novel aluminum alloy and surface treatment process thereof

The invention relates to the technical field of metal surface treatment, in particular to a novel aluminum alloy and a surface treatment process thereof. The novel aluminum alloy comprises an aluminum alloy body, an anodic oxide film layer coating the surface of the aluminum alloy body and a chromium carbide coating sprayed to the surface of the anodic oxide film layer, and nano micropores are formed in the outer surface of the anodic oxide film layer; and the pore size of the nano micropores is 5-10 nm, and the thickness of the anodic oxide film layer is 5-8 mu. According to the novel aluminum alloy, the aluminum alloy body is subjected to anodic oxidation to form the anodic oxide film layer with high adsorption capacity, and the anodic oxide film layer has good adsorption capacity due to the fact that the anodic oxide film layer contains the nano-scale nano micropores, so that the binding force between the anodic oxide film layer and the chromium carbide coating is enhanced conveniently; and compared with a traditional anodic oxidation aluminum alloy, the aluminum alloy has better metal texture and decoration performance. Meanwhile, the mechanical properties such as corrosion resistance and strength of the aluminum alloy base material can be improved by overlapping the anodic oxide film layer and the chromium carbide coating.
Owner:东莞金稞电子科技有限公司

Square-hole hollow bidirectional oblique-pulling-type decorative plate

The invention discloses a square-hole hollow bidirectional oblique-pulling-type decorative plate. The decorative plate comprises a decorative plate body. The decorative plate body is of a hollow structure. The hollow structure is formed by arranging and combining a plurality of square holes with the same structure and size at equal intervals. A diagonal reinforcing tendon is obliquely pulled in each square hole. Obliquely-pulling directions of the diagonal reinforcing tendons in any two adjacent square holes are opposite. One side of the decorative plate body is provided with a male part machined block of a reserved tenon groove fixing part. The other side of the decorative plate body is provided with a female part machined block of the reserved tenon groove fixing part. The decorative plate body, the male part machined block of the reserved tenon groove fixing part and the female part machined block of the reserved tenon groove fixing part are in integral structure. The square-hole hollow bidirectional oblique-pulling-type decorative plate is used in the wall surfaces or roof decoration, the weight is low, the installation speed is high, visual integrity is high, appearance is beautiful, pressure borne by the plate body is high, and the decorative plate further has the advantages of being fireproof, waterproof, green, environment-friendly, formaldehyde-free, odorless, capableof being immediately installed and immediately lived and the like.
Owner:无锡磐石新型建材科技有限公司
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