89 results about "Glass fiber" patented technology

A vacuum insulation panel is provided comprising a core with a plurality of stacked non-woven organic free glass fiber sheets, plies, or net shape one piece glass fiber core and a vacuum sealed enclosure containing the core. The fiberglass sheets are formed from glass fibers having a nominal diameter of about 1.5-3.0 microns and the enclosure is formed from an annealed stainless steel foil. The vacuum insulation panel has a thickness of from about 1 to 2.5 inches and an insulation value R of at least 56.8 at moderate vacuum levels between about 1.0E−02 to 1.0E+01 mTorr. In addition, a method of manufacturing same is provided, as well as a method of construction, wherein the vacuum insulation panel is disposed between two walls in the gap therebetween, and preferably a filler material, such as aerated concrete, fiberglass, foam, etc., is disposed in the gap so as to partially or fully encase the vacuum insulation panel.

The invention belongs to a material used for preparing printed circuit board, more specifically a resin combination and a prepreg used for preparing the printed circuit board. The resin combination uses phenoxy resin, epoxy resin composition, epoxy thinner, amine curing agent, imidazole enhancer and solvent as materials and is prepared in accordance with a certain weight, then the resin combination solution is immersed in glass fiber cloth to make the prepreg. Non-flowing character and the wetting quality of the glass fiber cloth are improved because of the excellent formula of the resin combination, thereby the prepreg used for the printed circuit board has a better non-flowing character, and moisturizing capability, heat resistance, flame retardant, high connectivity with copper foil, and provides high performance material for the printed circuit board product which has a special structure and flexibility-combines with steel.

Disclosed are a vacuum insulation member, a refrigerator having a vacuum insulation member, and a method for fabricating a vacuum insulation member. The vacuum insulation member includes: an envelope having gas impermeability and having a certain decompressed space therein; and a core having a certain shape, having an empty space formed therein, and disposed at an inner side of the envelope to support the envelope. The use of a glass fiber core can be avoided, and thus, employing equipment for preprocessing the glass fiber core and time required therefor can be restrained and fabrication can be facilitated.

The invention provides a long-fiber enhanced thermoplastic composite material vane used for a wind energy generator, which is composed of a long-fiber enhanced thermoplastic composite material, wherein the long fiber is glass fiber, carbon fiber or the composite fiber of glass fiber and carbon fiber; the content of the long fiber in the vane is 32-75wt%, the reservation length of the long fiber is 2.8-25mm and can form a mutually-tangled three-dimensional net structure characteristics, and therefore the product has a higher impact resistance, and especially has low-temperature impact resistance; the preferable size of the vane manufactured by the injection molding technology is 46-2200mm; the vane surface is provided with a primer layer; and the primer layer is sprayed with a UV (ultraviolet) photocuring light shade surface. In the product, the vane is manufactured by the injection molding technology, and the product has the excellent performances of simple production technology, low cost, long service life, low specific gravity, low-temperature warping deformation resistance, stable size, no water and moisture adsorption, high strength, low-temperature impact resistance, scratch resistance, ultraviolet aging resistance, chemical solvent corrosion resistance and the like.

The present invention discloses a thick copper circuit board processing method. The objective of the invention is to solve the technical problems of the squeeze of glass fibers by line shoulder dents and protrusions, existence of air bubbles, poor inter-layer combining force, high possibility of de-lamination and board thinning existing in existing thick copper circuit board laminating technologies. The method of the invention includes the following steps that: at the first surface of a thick copper board, a non-circuit pattern area is etched and thinned, so that a groove can be formed; the groove is flatly filled with liquid resin in a coating manner, and the liquid resin is not cured; and a prepreg and a first outer-layer plate are stacked on the first surface of the thick copper board, and the prepreg, the first outer-layer plate and the thick copper board are laminated, so that the liquid resin and the prepreg can be cured in a laminating process.

In a rotating grinding- or cutting tool, in particular a grinding wheel or grinding roller, on one body, a coating of abrasive material, e.g. cubic boron nitride (CBN) or diamond is applied. The body (2, 12, 22, 32, 42) has two side walls (2a, 12a, 22a, 32a, 42a; 2a, 12a, 22a, 32a, 42a) which are connected to each other on their peripheral region, with the side walls being constructed with fibre-reinforced composite, in particular carbon fibre-, glass fibre- or synthetic fibre-reinforced composite.

The invention relates to a high-temperature iron-based zeolite molecular sieve honeycomb type denitration catalyst and a preparation method thereof, and belongs to the technical field of atmospheric pollution treatment technologies and environmentally friendly catalyzing materials. The preparation method comprises the following steps: mixing ferrous salts with ferrite; synthesizing a zeolite molecular sieve, natural zeolite molecular sieve powder, attapulgite clay or kaolin, glass fibers, an organic binding agent, wood pulp or sesbania cannabina powder, stearic acid and glycerinum; and carrying out mixing, ageing, extrusion forming, drying and roasting to obtain the iron-based zeolite molecular sieve honeycomb type denitration catalyst. According to the catalyst, the zeolite molecular sieve and natural raw mineral materials which have excellent thermal stability are used as carriers, and the running stability, the sintering resistance and the mechanical strength of the catalyst in a high-temperature environment are improved. The obtained honeycomb type denitration catalyst has good water resistance and sulfur poisoning resistance, and the conversion ratio of oxynitride is greater than 90% under the conditions that the temperature is in the high-temperature range of 400-600 DEG C and the air speed is 10,000 h<-1>.

The invention discloses a flame-retardant polybutylene terephthalate (PBT) composite material, which is prepared by taking a mixture of montmorillonite and polytetrafluoroethylene as an organic synergistic flame retardant and cooperating with a nitrogen containing flame retardant, and a preparation method thereof. The composite material comprises the following components in percentage by weight: 45-70 percent of polybutylene terephthalate, 1-10 percent of nano-sized organic montmorillonite and 10-30 percent of glass fiber which is subjected to surface treatment, and 10-30 percent of nitrogen containing flame retardant, wherein the nano-sized organic montmorillonite is montmorillonite mineral powder processed by an alkyl intercalating agent; and the glass fiber is alkali-free glass fiber processed by a coupling agent. The preparation method comprises the following steps of mixing the components, antioxidant and lubricating agent; melting, blending and extruding the mixture by a double-screw extruder to obtain the polybutylene terephthalate composite material which has high performance and is synergistically filled by montmorillonite and glass fiber. The composite material is high in modulus, good in toughness, high in temperature resistance and high in CTI value; the processing environment is friendly; the composite material are free of halogen and phosphorus, meets an ROSH (The Restriction of the use of Certain Hazardous Substances in Electrical and Electronic Equipment) principle, and is widely applied to the field of engineering plastics.

The invention discloses a testing method for the wettability of glass fiber cloth. The testing method comprises the following steps of: (1) taking at least one piece of the glass fiber cloth to be tested and overlapping all the glass fiber cloth up and down to obtain a glass fiber cloth combination; overlapping semi-cured-state resin at one side or two sides of the glass fiber cloth combination; (2) overlapping separation layers at the two sides of the glass fiber cloth combination to form overlapping; (3) carrying out pressing operation on the overlapping to obtain a sample; and (4) after the pressing is finished, removing the separation layers and judging the condition of the wettability of the glass fiber cloth by observing the condition of a secondary surface of the sample. According to the testing method disclosed by the invention, the good degree of the wettability of the glass fiber cloth can be judged accurately.

In a stator manufacturing method to manufacture a stator in which divided-core assemblies are arranged in a cylindrical shape, each of which includes a divided-core member having a teeth portion on which a coil is wound. In this method, the divided-core assemblies are inserted in the cylindrical shape into a fixed mold, resin sheets containing glass fibers or carbon fibers are disposed on coil-end portions of the cylindrically-arranged divided-core assemblies, and a slide part of a movable mold applies pressure to and molds the resin sheets, thereby combining the divided core assemblies into a single unit. The movable mold is operated to position the divided-core assemblies in place by a cylindrical part and then apply pressure to and mold the resin sheets by the slide part.

The invention discloses a method for preparing an insulator. The method comprises the following steps of: a, preparing a three-dimensional framework which has a shape matched with that of the insulator by using a glass fiber bundle, wherein glass fiber cloth is coated on the surface of the framework and is soaked with epoxy resin; b, when the epoxy resin starts to solidify, uniformly coating resin containing ceramic powder or glass powder on the surface of the framework, and putting the framework into an insulator mold; and d, raising the temperature, sizing, solidifying and then demoulding to obtain the insulator. According to the integrated insulator prepared by the method, a process of sleeving umbrella skirts on core rods of the insulator sequentially one by one is eliminated, and labor power is saved; and the insulator prepared by the process has low dead weight, a high electrical property and a high mechanical property. Both a hollow insulator and a solid insulator which are prepared by the process have a high electrical property, a high mechanical property and low dead weight. The insulator is suitable for outdoor high-voltage power transmission lines.

A hollow molded article is obtained by molding a thermoplastic polyester composition comprising a blend of reinforcing fiber glass, polybutylene terephthalate with a melting point of 210 to 230° C. and polyethylene terephthalate with a melting point of 240 to 260° C., wherein at least 10% of the outer surface of the article has a continuous glossy region with a gloss of at least 75 gloss units, as measured at 60 degrees in accordance with ASTM D523 and wherein the gloss varies from the average less than 10 gloss units in the glossy region. A gas-assisted injection molding process is also disclosed for making such hollow molded articles, which articles can have various uses, including handles for appliances or the like.

The present invention relates to an optical fiber and an optical cable which can be used for a long term even under environments in which an oil content migrates into them, and the optical fiber has a glass fiber extending along a predetermined axis, and a coating. The coating is composed of a plurality of layers each of which is comprised of an ultraviolet curable resin or a thermosetting resin, and swelling rates of the respective coating layers are set so that they increase from an outer peripheral surface of the glass fiber to an outer peripheral surface of the cable jacket.

The invention discloses a high-impact flame-retardant reinforced PC/ABS alloy material and a preparation method thereof. The PC/ABS alloy material comprises the following components in parts by mass:42.8-68.9 parts of polycarbonate, 20 to 30 parts of ABS, 10 to 20 parts of a glass fiber filler, 0.3 to 0.8 part of a coupling agent, 3.0 to 7.0 parts of a toughening agent, 0.2 to 1.0 part of a flameretardant, 0.1 to 0.5 part of an anti-dripping agent, 0.4 to 1.0 part of an antioxidant, and 0.2-1.0 part of a lubricant. The glass fiber reinforced PC/ABS alloy material has the advantages that theprepared glass fiber reinforced PC/ABS alloy material has the characteristics of high impact resistance and high flame retardancy, meets the requirements of materials in the electronic and electric appliance industry, can improve the mechanical strength of parts, and also can achieve the effects of high impact resistance and high flame retardancy; compared with traditional glass fiber reinforced polycarbonate, the high-impact flame-retardant reinforced PC/ABS alloy material can achieve more ideal rigidity and toughness balance, and has the advantages of simple preparation process, lower cost and easiness in large-scale industrial production.

The invention discloses a high-strength composite acrylic material. A method for preparing the high-strength composite acrylic material comprises the steps of preparing long fibers with the length of about 5cm from glass fibers, preparing unordered glass fiber cloth from the glass fibers, melting an acrylic material, then, pouring the melted acrylic material into a mold by 1/3 thickness, putting the glass fiber cloth into the mold, pouring the rest acrylic material into the mold, meanwhile, discharging air from the mold through vacuumizing, and opening the mold after the acrylic material is cured, thereby preparing the composite material. Through the manner, the high-strength composite acrylic material disclosed by the invention has the advantages that the reliability is high, the transparency is high, the mechanical strength is good, the weight is light, the preparation is simple and convenient, a finished product is free of bubbles, the breakage is difficult, the cost is low, the materials are easily obtained, and the like.

The invention relates to an intelligent robot gripper for a stacking system. The intelligent robot gripper for the stacking system comprises a supporting assembly, a gripping assembly and a power assembly, wherein the gripping assembly and the power assembly are fixed to the supporting assembly. The gripping assembly comprises four rows of gripping teeth. The gripping teeth comprise L-shaped fixing teeth and sealing assemblies arranged at the tops of the fixing teeth. Each sealing assembly comprises a cylindrical body, an annular rubber ring and two respiratory films. Strip-shaped cavities are formed in the bodies and communicated with an external air compressor via through holes formed in the fixing teeth. By the adoption of the intelligent robot gripper for the stacking system, through suction cup type fixed connection, bags can be freely gripped and fixed through the mechanical gripper; and glass fiber reinforced plastics is adopted as a main material, the overall weight can be effectively reduced, the bags can be effectively supported, and the gripping capacity and work efficiency are improved.

The invention discloses an environment-friendly ceramic coating material for a water faucet. The environment-friendly ceramic coating material for the water faucet is prepared according to a formula comprising the following raw material components in percentage by mass: 80-100 parts of fluorocarbon resin, 8-10 parts of organosilicone oil, 3-5 parts of naphtha, 6-8 parts of polydimethylsiloxane, 10-12 parts of absolute ethyl alcohol, 5-8 parts of alkylphenol polyoxyethylene, 6-8 parts of castor oil polyethenoxy ether, 30-35 parts of an acrylic resin emulsion, 6-8 parts of a nano graphene oxide solution, 10-12 parts of perfluoropolyether, 5-6 parts of sodium chloride, 6-8 parts of disodium hydrogen phosphate, 5-6 parts of aluminum oxide, 6-10 parts of glass fiber powder, 5-8 parts of zinc powder, 6-8 parts of copper powder, 8-10 parts of carbon fiber powder, 8-10 parts of polybutylene terephthalate, 6-8 parts of calcium stearate, 5-8 parts of zinc stearate, 7-9 parts of sodium methyl silicate, 3-5 parts of isobutyl isobutyrate, 6-8 parts of ethlene bisstearamide and 8-10 parts of diethylene glycol monobutyl ether. The environment-friendly ceramic coating material for the water faucet has the advantages of corrosion resistance, wear resistance, high adhesive force, bright and clean appearance and compact coating structure.

The invention discloses a novel powder metallurgical gear. The novel powder metallurgical gear is prepared from iron powder, copper powder, molybdenum powder, vanadium powder, nickel powder, yttrium powder, aluminum powder, magnesium powder, cobalt powder, lead powder, steel slag powder, cupola slag powder, ferroalloy slag powder, modified tree ash powder, graphite powder, epoxidized butyl stearate, silicone oil, methylcellulose, aluminum stearate, polyethylene glycol, ethylene bisstearamide, stearic acid, carbon fibers, glass fibers, boron nitride, epoxy propoxy propyl trimethoxysilane, silica, manganese sulfide, acrylate, an inhibitor, a binder, an enhancer, a cutting agent, a lubricant, a coupling agent and a dispersion agent. According to the novel powder metallurgical gear, through the specific composition proportion, the novel powder metallurgical gear is even in overall density, high in density, high in ductility and area percentage reduction, good in wear resistance, strength and hardness, high in material utilization rate and suitable for quickly producing high-performance gears on a large scale.

The invention discloses a preparation method of a phenolic resin impregnation glass fiber composite material. The preparation method comprises following steps: heat treatment, acid etching, and coupling agent treatment are adopted for surface treatment of glass fiber; the treated glass fiber is immersed in a boron modified phenolic resin alcoholic solution obtained via modification with zirconium boride of a certain concentration, vacuum impregnation is carried out, an obtained product is delivered into a muffle furnace for curing molding, an obtained primary product is delivered into a phenolic resin alcoholic solution of a certain mass concentration for repeat impregnation curing so as to obtain a finished product. Optimization of the preparation method is carried out a series of property characterization, and the phenolic resin impregnation glass fiber composite material with desirable density is obtained finally. The advantages of the phenolic resin impregnation glass fiber composite material are that: the density is as low as 0.25 to 0.4g/cm3, excellent oxidation resistance is achieved, the preparation method is simple; and the phenolic resin impregnation glass fiber composite material can be used in the field of high temperature thermal protection.

The invention discloses corrosion-resistant thermal insulation mortar which is characterized by being prepared from the following raw materials in parts by weight: 320-380 parts of cement, 200-250 parts of kaolin, 220-260 parts of waste incinerator slag, 100-140 parts of quick lime, 210-260 parts of waste glass slag, 140-190 parts of coarse sand, 7-9 parts of glass fiber, 9-12 parts of 0.5-5mm wood fiber, 60-90 parts of wood saw powder, 60-80 parts of tobacco straw, 3-7 parts of polyvinyl acetal and 4-6 parts of auxiliaries. The thermal insulation mortar prepared by the invention is low in heat conductivity coefficient, stable in thermal insulation property, high in compressive strength, corrosion-resistant, anti-aging and suitable for thermal insulation of various walls.