287results about How to "Lightweight and high strength" patented technology

The invention discloses an outdoor electric-insulation modified epoxy resin composition which comprises an epoxy resin, a curing agent, a curing accelerator and an inorganic filler. The outdoor electric-insulation modified epoxy resin composition has the advantages of high weather resistance, favorable hydrophobicity, high volume resistivity, high tracking resistance, high arc resistance, low thermal expansivity and the like, and can be used for manufacturing suspension insulators for alternating current transmission lines as well as umbrella skirts of cross arms and other outdoor insulation parts. Compared with the silicon rubber umbrella skirt, the umbrella skirt prepared from the composition can prevent birds from damage, resist line walking trampling, avoid shipping damage and the like.

The invention relates to a resin mixture used for producing FRP (fiberglass-reinforced plastics) profile, the FRP profile made from the mixture and a preparation method thereof. The resin mixture comprises the following materials according to weight proportion: 10 of resin, 0.4 to 3 of low shrinkage agent, 2 to 15 of fillers, 0.05 to 0.2 of low temperature curing agent, 0.05 to 0.2 of high temperature curing agent, 0.05 to 0.2 of parting agent, 0.02 to 0.5 of pigment and appropriate amount of coupling agent and ultraviolet absorbent. The preparation method of the FRP profile by using the mixture is that: a reinforcing material is immersed into the resin mixture. The obtained material is extruded to get forming under high temperature and high pressure through a die; during the extrusion forming, the die is heated after being separated into three segments, and the temperature of the three segments is respectively 60 DEG C to 100 DEG C of a first segment, 100 DEG C to 150 DEG C of a second segment, 100 DEG C to 148 DEG C of a third segment; the haulage speed is 320 mm/min.

The invention discloses a glass fiber reinforced plastic curing agent composition and a glass fiber reinforced plastic composite material prepared by the same as well as a cable trough. The glass fiber reinforced plastic curing agent composition is formed by the following components in parts by weight: 50-60 parts of unsaturated polyester resin, 15-20 parts of aluminum hydroxide, 1-2 parts of zinc stearate, 0.2-0.5 part of de-molding agent, 0.5-1 part of benzoyl peroxide, 0.5-1 part of benzoyl peroxide tert-butyl ester, 0.1-0.2 part of antioxidant, 0.1-0.2 part of ultraviolet absorbent, and 0.1-0.2 part of antistatic agent. A glass fiber reinforced plastic material is prepared by an extruding and molding process. The glass fiber reinforced plastic material prepared by the curing agent composition disclosed by the invention is low in production cost, has light weight and high strength, and has good weather resistance even under an extreme hygrothermal environment.

The invention relates to a method of in-situ preparing TiB2 granule strengthening Mg-based composite material in the composite material technical field. The steps are that: powder of K2TiF6, KBF4 and Na3AlF6 are mixed uniformly and then put into a kiln for drying, thus obtaining waterless powder. Aluminum ingot is melted in a resistance furnace with heat preservation and uniformity; the waterless powder after dried is added to the melting Al melt liquid by batch and then is stirred with a graphite disc, and scum on the surface of the melt liquid is removed after stirred and stewed, thus obtaining TiB2-Al intermediate alloy; magnesium alloy is smelted with the protection of SF6 and CO2 mixing gas, and flame retardant element beryllium is added; the TiB2-Al intermediate alloy is added into the magnesium alloy melting solution slowly, stirred, stewed and cast. The technology of the invention is comparatively simple, has low cost, and the density of TiB2/Mg composite material is between 1.8-2.0g/cm<3> and tensile strength thereof is increased by more than 60 percent than base alloy.

The invention relates to a graphene enhanced aluminium-based silicon carbide composite and a preparation method thereof. The composite comprises the following substances by volume percent: 40% to 70% of silicon carbide and 0.5% to 5% of graphene, and the balance being aluminium alloy. The composite is prepared through the powder metallurgy method and is obtained through the steps of blending, powder mixing, bagging, vacuum degassing and hot iso-hydrostatic forming treatment. The composite has the advantages of high thermal conductivity, high strength, high plasticity, light weight, good thermal diffusivity, isotropy, and the like, and becomes a second-generation electronic packaging material with wide application.

The invention relates to the field of composite materials, in particular to an antimicrobial sheet molding compound and a preparation method thereof. The antimicrobial sheet molding compound comprises the following raw material components in parts by weight: 15-30 parts of unsaturated polyester resin, 5-15 parts of low shrinkage agent, 10-30 parts of fibre glass, 35-55 parts of inorganic filler, 0.2-1 part of evocating agent, 0.2-1 part of thickening agent, 1-3 parts of mold lubricant and 0.5-5 parts of antibacterial agent. The invention has the advantages of reasonable prescription design, high efficiency, innocuity and good antimicrobial effect.

The invention relates to a graphene, aluminum and silicon carbide composite material and a preparation method thereof. The composite material is prepared from of constituents of 10-40 vol% of silicon carbide, 0.5-2 wt% of graphene, and the balance aluminum alloy. The composite material is prepared through a powder metallurgic method and can be obtained through proportioning, powder mixing, packaging, vacuum degassing and hot isostatic forming. The composite material has the advantages of low density, low weight, high hardness, high tensile strength and the like, the strength, fatigue resistance and toughness of the material are remarkably improved through addition of a proper amount of graphene, and thus the composite material has broader application prospects in the field of structural pieces.

The invention relates to the field of composite building and ornament materials, in particular to a composite inorganic hydrous salt phase-change material and a preparation method of an inorganic composite phase-change plate. The preparation method comprises the steps that the pre-configured composite inorganic hydrous salt phase-change material raw materials comprising 100 parts of magnesia powder, 10-30 parts of clay powder, 15-25 parts of slag powder, 6-25 parts of Al2O3 padding, 45-60 parts of composite sulfate, 10-32 parts of wood flour, 0.5-1 part of composite phosphate, 5-7 parts of perlite, 75-85 parts of water and 0.2-1 part of citric acid are provided; the raw materials are mixed and evenly stirred into mixed slurry; the mixed slurry is compounded with glass fiber cloth to form an inorganic composite heat accumulation panel. The inorganic composite phase-change plate has the advantages of being low in weight and high in strength, saving energy, preserving moisture, resisting water, being good in toughness, absorbing sound, being environmentally friendly and high in ornamental performance and the like, meanwhile, has the high energy storage density and low degree of supercooling, is free of layering and good in stability, has impermeability, and does not corrode metal.

The invention relates to a phosphogypsum-based lightweight plastering gypsum product. The phosphogypsum-based lightweight plastering gypsum product is prepared from the following components: phosphogypsum powder, an alkaline agent, aggregate, a retarder, a thickner and a water-retaining agent. The phosphogypsum-based lightweight plastering gypsum product provided by the invention has the advantages of light weight and high strength, capability of being firmly bonded with a base layer, no cracking, no hollowing and no odor; the phosphogypsum-based lightweight plastering gypsum product is suitable for indoor plastering construction in winter, has moisture absorption and moisture exhaust functions, and is fireproof and incombustible and the like; the phosphogypsum-based lightweight plasteringgypsum product is an excellent material for indoor plastering and has a good application prospect.

The invention relates to a preparing method for foam microcrystalline glass, in particular to a method for preparing the foam microcrystalline glass through red mud. The preparing method aims at preparing the foam microcrystalline glass with the industrial solid waste red mud, the low energy consumption and the excellent performance. The preparing method includes the following steps that (1) industrial waste residues, fluxing agent, foaming agent and foam stabilizer are mixed to be even according to the weight ratio to form a batch mixture; (2) the mixed batch mixture is put into a ball mill and powdered; (3) the powdered batch mixture is put into a grinding tool and pressed and formed; (4) a pressed sample is put into a reacting furnace and fired. The method has the advantages that the problems that in aluminum industry of China, the discharging quantity of waste residues is large, waste residues are difficult to treat are solved, the comprehensive utilization level of the industrialwaste is improved, sustainable development of building materials in China can be achieved, and social economical benefits can be remarkably improved.

The invention relates to an efficient sound-absorbing ceramsite, belonging to the technical field of a building material. Aiming to solve the problems that city pollution can not be well solved, product properties are poor, the poor sound-absorbing effects are poor and the production cost is high in the prior art by mainly using the shale as ceramsite, can be solved, The invention provides the efficient sound-absorbing ceramsite, which is prepared from raw materials mainly consisting of raw materials of 60-80% of sludge, 5-20% of the shale, 5-20% of coal ash and 1.0-10% of additive. The efficient sound-absorbing ceramsite provided by the invention has the properties of wide sound-absorbing frequency band, fire resistance, good durability, freezing resistance, seismic resistance, high sound-absorbing coefficient, high porosity, light weight, high strength, heat resistance, anti-permeability and the like. The efficient sound-absorbing ceramsite further can be used for preparing a road barrier and a metro sound-absorbing material and has wide application prospect. Furthermore, the efficient sound-absorbing ceramsite provided by the invention mainly uses city sludge, so that not only can the problem of the city sludge be solved well, but also the overuse of a natural resource of the shale is reduced.

The invention discloses a manufacturing method of an industrial logistics supporting plate by using wood plastic die-casting, which relates to industrial logistics supporting plates. The manufacturing method comprises the following process steps of: pulverizing waste bamboo woods into needle-like chips, pulverizing waste rubber into powder, pulverizing waste plastics into sheets or particles, mixing the needle-like chips, the powder-shaped waste rubber, the sheet-shaped or particle-shaped waste plastics, and uniformly stirring the mixture to prepare core materials; paving the core materials, keel materials and surface materials into a mould; then feeding the core materials, the keel materials and the surface materials into a hot press; and applying high-temperature high-pressure to the hot press to perform high-pressure formation, pressure maintaining and nature determination, and demoulding to prepare a finished product. The manufacturing method has the advantages that: the high-temperature high-pressure die-casting process is adopted and materials are scientifically mixed; compared with the prior art, the method has the characteristics of hot melt cementation and condensation solidification by adding raw materials of the waste rubber, and combining the raw materials of the waste rubber with other waste wood materials and keel materials to form a whole body; the materials are paved reasonably in layers to effectively improve intensity and rigidity of a layered supporting plate; and the waste materials are fully utilized to prepare the industrial logistics supporting plate with high quality and long service life.

The invention discloses a lightweight preform and a preparation method thereof. The lightweight preform comprises a hollow substrate (1) or a solid lightweight substrate (5), an upper-layer plate (2), a lower-layer plate (3) and a rebar assembly (4), wherein an upper-layer steel mesh in the rebar assembly (4) is located at the upper parts of the substrates (1 and 5); a lower-layer steel mesh in the rebar assembly (4) is located at the lower parts of the substrates (1 and 5); a Z-axis upright post rebar (4C) in the rebar assembly (4) passes through rectangular through holes of the substrates (1 and 5); the upper-layer plate (2) made of concrete contains the upper-layer steel mesh; and the lower-layer plate (3) made of the concrete contains a lower-layer steel mesh. The lightweight preform is reinforced by adopting hollow substrate (1) or the solid lightweight substrate (5) supplemented by rebar in three directions; and an upper panel, a lower panel and a Z-axis support (6) are formed through concrete injection to form the lightweight preform with spatial mechanical characteristics.

The invention provides a graphene-based foamed ceramic insulation wallboard, which is made of the following components: potassium sodium feldspar, ceramic waste residue, graphene, vermiculite, high-temperature co-solvent, expanded graphite, zirconia, clay, stable agent and debonding agent. Using potassium sodium feldspar and ceramic waste slag as the base material, adding graphene and vermiculite to make the board more lightweight, high-strength, thermal insulation, and improve the performance of the board such as fire resistance, insulation and weather resistance, using expanded graphite as a foaming agent, using high temperature The foaming process can better control the density, pore distribution and pore size of the board, achieve better heat preservation and light weight effects, and make a board with remarkable anti-aging, corrosion resistance, heat insulation, sound insulation, waterproof and impervious, fireproof and fireproof. , lightweight, high-strength, non-cracking, green and environmental protection and other comprehensive performance in one foam lightweight wallboard.

The invention discloses a mothproof down feather composite fiber. The mothproof down feather composite fiber is characterized by being prepared from the following raw materials in parts by weight: 16-18 parts of duck's down, 15-19 parts of chicken feather, 11-13 parts of mercerized wool fibers, 12-14 parts of mercerization cotton fibers, 4-7 parts of copper ammonia fibers, 15-19 parts of straw stalk, 4-6 parts of closed cell perlite powder, 1-3 parts of angelica sinensis, 2-4 parts of gastrodia elata, 2-3 parts of ligusticum wallichii, 0.2-0.4 part of zinc gluconate, 0.3-0.6 part of aluminium silicate, 100-105 parts of 1-butyl-3-methyl imidazole acetate, 110-115 parts of 1-butyl-3-methyl imidazole dibutyl phosphate, 2-4 parts of additives and a proper amount of water. The down feather composite fiber prepared by the invention has the advantages of sterilization, moth prevention, light weight, high intensity, thermal preservation, flame retardance and the like.

The invention discloses a single layer FRP concrete composite bridge slab construction method. The method includes erecting a FRP board, processing the connection boundary of the FRP board and concrete, pouring a first layer of concrete, processing the surface of the first layer of concrete and pouring the second layer of concrete till meeting the designed thickness. The vertical deformation of a bridge slab can be reduced during construction effectively, the stability of the FRP board is improved during construction, the FRP material can be saved, and the cost of the FRP-concrete combined bridge slab is reduced.

The invention discloses a preparation method of an HDPE injection molding inspection well. The method comprises the following steps of: raw material mixing, plasticizing injection, die molding, cooling, finishing and warehousing. The method adopts an HDPE material to produce the plastic inspection well through injection molding. As the product is molded through injection molding and pressure maintaining, it has stable quality, and has all performances exceeding those of traditional rotational molding products. The invention makes use of the recycled HDPE raw material, and adds reinforced materials for filling, thus being in favor of waste utilization. The prepared inspection well has the advantages of: low cost, light weight, great strength, convenient construction, and excellent toughness.

The invention relates to high-strength high-toughness self-leveling light aggregate concrete and a preparation method thereof. The light aggregate concrete is made of cementing materials, leveling agents, toughening materials, sand, a crude aggregate and water through mixing, wherein the cementing materials are ordinary Portland cement, glass beads and nano micro silicon powder; the leveling agents are a slump-prevention type water reducing agent and an associated thickening leveling agent; the toughening materials are an ethylene-vinyl acetate copolymer emulsion, an epoxy modified acrylic emulsion and a polyvinyl alcohol fiber; the sand is medium sand; and the crude aggregate is shale macadam ceramsite. The preparation method comprises the following steps: firstly, uniformly stirring theethylene-vinyl acetate copolymer emulsion, the epoxy modified acrylic emulsion, the nano micro silicon powder and the shale macadam ceramsite for 1 minute, leaving the mixture to stand for 3 minutes,and further stirring the mixture with the sand, the cement, the glass beads, the water, the polyvinyl alcohol fiber and the associated thickening leveling agent for 3 minutes. The light aggregate concrete provided by the invention has the characteristics of being light in weight, high in strength, free of light aggregate floating, good in flowability, high in toughness and small in shrinkage, canbe applied to large-span bridges and auxiliary structures thereof, and can be also applied to industrial and civil high-rise buildings.

The invention relates to the field of engineering building materials, belongs to the category of new materials, and in particular relates to a glass fiber reinforced plastic (FRP) engineering anchor rod and a manufacturing method thereof. The invention is characterized in that: raw materials mainly comprise glass fibers, resins and additives, wherein the glass fibers account for 70 to 85 weight percent of the raw materials. The invention has the advantages that: the FRP material has the advantages of light weight, high strength, corrosion resistance, capacity of being easily cut, insulativity (not conducting electricity or magnetism), flame retardancy, low-temperature resistance, fatigue resistance and the like; the anchor rod can locally replace steel bars according to the characteristics of the FRP material so as to fulfill the aim of saving steel and labor cost, the labor efficiency can be greatly improved, and the cost is saved; the anchor rod can be applied to environments with serious corrosion of corrosive media for a long time, can maintain the strength and service life, and meet the requirement of structure durability; the anchor rod can be applied to structure with special requirements; and prestress loss due to concrete creep and shrinkage can be reduced, and the prestress loss due to prestressed reinforcing steel loosening can be reduced.

The invention discloses a composite rubber hose for conveying LPG, LNG and strongly corrosive chemical solvent and a preparation method thereof. Low density polyethylene, ultra-high molecular weight polyethylene and macromolecule cross-linked polyethylene serve as raw materials; after scientific compound and vulcanization of a rubber hose, a chemical substance with a good adhesive property is obtained for preparing a liner film; meanwhile, corona treatment is carried out on the bonding face of the liner film and the bonding face of the rubber hose, and fiberglass reinforcing fiber with radiation protection performance is compounded on the surface layer; therefore, the surface layer of the rubber hose has good radiation protection performance, hidden danger of conveying pipelines caused by ionizing radiation is avoided, and finally the composite rubber hose which has the firmly bonded liner film, and is high in radiation protection and capable of conveying LPG, LNG and strongly corrosive chemical solvents is prepared, the hose can absorb as much as 97.5% to 99.5% of X-rays, gamma-rays and various neutrons in nuclear radiation, and the adhesive force (N/25mm) between the liner film and a rubber layer reaches 160-180.