53results about How to "Good penetration resistance" patented technology

The object of the present invention is to provide an intermediate film for a laminated glass having excellent transparency, adhesion, impact resistance and penetration resistance as well as excellent light resistance and weather resistance, and scarcely turning yellow in a heating treatment during its preparation. An intermediate film for a laminated glass comprising a laminate consisting of a layer (PVB layer) of a composition comprising polyvinyl butyral and a layer (EVA layer) of a composition comprising ethylene/vinyl acetate copolymer containing an organic peroxide, wherein the composition comprising polyvinyl butyral contains a benzophenone compound as an ultraviolet absorber; a laminated glass; and a process for the preparation of the same.

The invention relates to the field of anticorrosive coatings, in particular to an epoxy rust graphene anticorrosive coating and a preparation method thereof. The epoxy rust graphene anticorrosive coating is prepared from the following components in percentage by weight: 0.1 to 5 percent of graphene, 30 to 60 percent of epoxy resin, 20 to 40 percent of an active pigment, 10 to 30 percent of a pigment filler, 0.1 to 10 percent of a dispersant, 0.1 to 5 percent of a coating additive and 8 to 30 percent of a solvent. According to the coating provided by the invention, all the components achieve asynergetic enhancement effect; the obtained coating is tightly combined with a rust layer and is excellent in anticorrosive property; rust spray coating, long-acting corrosion prevention and a primer-topcoat type are realized. According to the corresponding preparation method, all the components work synergistically, and the coating with uniformly dispersed graphene powder is obtained. The methodis simple, convenient and feasible in preparation, and the prepared coating is excellent in performance.

The present invention provides an interlayer for a laminated glass, which contains a polyvinyl acetal resin, and can be easily bonded to a glass sheet to form a highly transparent laminated glass. And the present invention provides a laminated glass using the interlayer.

The interlayer for a laminated glass contains 100 phr of a polyvinyl acetal resin and 42 to 60 phr of a plasticizer, wherein the plasticizer is unsaturated fatty acid alkyl ester having 16 to 20 carbon atoms.

The invention discloses a composite bulletproof armor plate and a preparation method thereof. The composite bulletproof armor plate comprises a protective cover plate, ceramic plates, metal restraining plates, a fiber metal laminated plate and a porous metal sandwich plate; and the ceramic plates and the metal restraining plates are assembled and connected in an interference fit mode, the ceramicplates are supported through the fiber metal laminated plate and the porous metal sandwich plate, and the bullet resistance of a bulletproof armor plate is improved. The preparation technology is simple, the cost is low, compared with a traditional ceramic composite armor plate, the composite bulletproof armor plate is higher in impact resistance at a time and has the multi-time impact resistance,and the composite bulletproof armor plate has the wide application prospects in the bulletproof fields of armed helicopters, armored cars, vessels and the like.

The invention provides a reflective film for orchards. The reflective film for the orchards comprises a base material layer, wherein a tough waterproof layer is arranged on the upper surface of the base material layer; a tough reinforcing layer is arranged on the lower surface of the base material layer; a reflective layer is arranged on the upper surface of the tough waterproof layer; a surface protecting layer is arranged on the lower surface of the tough reinforcing layer; the base material layer is a glass fiber felt layer; the tough waterproof layer is a grapheme-modified polyurethane coating layer; the tough reinforcing layer is made of a graphene/natural rubber nanocomposite material; the reflective layer is an aluminum-plated reflective layer; the surface protecting layer is a PE film. The reflective film can be cut into different shapes according to actual situations of the orchards. The toughness and the root puncture resistance of the reflective film are greatly improved, so that the reflective film can be repeatedly used for several times, the utilization rate of the reflective film is improved, and thus the reflective film has a relatively high application value.

The invention relates to an RH gunning mix and a preparation method of the RH gunning mix, and belongs to the field of external refining of metallurgical production. According to the technical aim, the invention provides the RH gunning mix and the preparation method of the RH gunning mix. The RH gunning mix is composed of, by weight, 40-45 parts of fused magnesite coarse particles, 10-15 parts of fused magnesite fine particles, 20-30 parts of fused magnesite fine powder, 2-5 parts of nanometer zirconium dioxide, 2-6 parts of nanometer titania, 1-3 parts of calcium aluminate cement, 2-4 parts of silica powder, 2-3 parts of alpha-A12O32 and 0.05-0.1 part of carboxymethylcellulose. The RH gunning mix not only is superior in performance, but also achieves the chromium-free performance and completely meets the specified environmental index and use requirement.

The present invention relates to a laminated glass, particularly to a heat strengthening laminated glass with a suitable middle region mechanical strength and a high edge region mechanical strength, wherein the heat strengthening laminated glass comprises a first glass plate, a second glass plate and an intermediate film, at least one of the first glass plate and the second glass plate is a heat strengthening glass plate, the heat strengthening laminated glass comprises a middle region and an edge region, and the edge region comprises an edge compressive stress region and an edge tensile stress region, wherein the maximum edge compressive stress of the edge compressive stress region is more than 18 MPa, the maximum edge tensile stress of the edge tensile stress region is less than or equal to 7 MPa, and surface stress of the heat strengthening laminated glass is more than 6 MPa and is less than 14.8 MPa. The heat strengthening laminated glass has the following advantages that: penetration resistance is good, safety performances and regulatory requirements of vehicle parts are met, and damage on the glass periphery during an installation and use process can be avoided.

The invention discloses a flexible reinforced composite material and a preparation method thereof, and belongs to the technical field of protection engineering. The preparation method of the flexiblereinforced composite material comprises the following steps of impregnating a woven fabric in a slurry padding solution, and drying to obtain a pretreated woven fabric; and then spraying a polyurea coating on the surface of the pretreated woven fabric by using a polyurea elastomer spraying technology to obtain the flexible reinforced composite material, wherein the slurry padding liquid comprisesthe following components including potato starch, corn native starch and waterborne polyurethane. The flexible reinforced composite material prepared by the method can reinforce reinforced concrete materials, has the advantages of flexibility, large-area curved surface coverage, light weight, convenience in storage and transportation, wide application range, quick reinforcement and repair, good anti-explosion and anti-penetration performance and the like, and is more suitable for anti-explosion reinforcement of special structures such as arch bridges.

The invention discloses a vacuum compression bag with an antibacterial function and a production process thereof, and relates to the field of packaging materials. The vacuum compression bag is formed by a high-temperature-resistant outer layer, a first antibacterial adhesive layer, an impact-resistant intermediate layer, a second antibacterial adhesive layer and a corrosion-resistant inner layer from outside to inside through hot pressing. The production process comprises the seven procedures of preparation of the high-temperature-resistant outer layer, preparation of the impact-resistant intermediate layer, preparation of the corrosion-resistant inner layer, preparation of an antibacterial adhesive, coating, hot-pressing and rewinding and hot melting. Compared with the prior art, the vacuum compression bag has excellent antibacterial property, corrosion resistance, impact resistance, breakdown resistance and high temperature resistance, and is suitable for vacuum storage of materials in a high-temperature corrosion environment, the impact strength reaches 36 MPa, the tensile strength reaches 52.4 MPa, the elongation at break reaches 106%, and the antibacterial rate to escherichia coli, staphylococcus aureus and candida albicans reaches 99.7%, 98.3% and 95.7% correspondingly.

The invention discloses capacitor aluminum shell coating and a production and coating method thereof. The coating is composed of a composition A and a composition B; the composition A is prepared from 40-50 parts of polyester resin, 10-15 parts of epoxy resin, 10-20 parts of S100# solvent oil, 10-20 parts of PMA (polymethyl acrylate), 1-2 parts of a dispersing agent, 1-2 parts of organic organo-siloxane debubbling and leveling agent, 0.3-0.5 part of acid catalysts, 3-5 parts of insulation carbon black and 5-8 parts of mica powder; the composition B is prepared from 15-20 parts of permethylated amino resin, 5-6 parts of polymethylene amino resin, 15-30 parts of n-butyl acetate and 3-5 parts of butoxy cellosolve. The production method includes: respectively producing the composition A and the composition B, and well mixing to obtain the coating. The coating method includes: subjecting an aluminum substrate to alkaline washing, uniformly coating the surface of the aluminum oxide substrate with the capacitor aluminum shell coating at the room temperature, and curing.

The invention relates to the reinforcement that reinforces a passenger vehicle tyre. It targets good resistance to penetration and perforation of its crown by foreign objects, with a reinforcing architecture that is simple and lightweight. According to the invention, the hooping layer (71) has a breaking strength per mm of axial width of the hooping layer FR at least equal to 35 daN/mm, an elongation at break AR at least equal to 5% and a secant extension modulus MA at least equal to 250 daN/mm, for an applied force F equal to 15% of the rupture strength FR of the said hooping layer (71). Theworking reinforcement (6) comprises a single working layer (61) of which the working reinforcements form, with the circumferential direction (YY'), an angle AT at least equal to 30 degrees and at mostequal to 50 degrees. The carcass reinforcements of the at least one carcass layer (81) form, with the circumferential direction (YY') and in the equatorial plane (XZ), an angle Ac2 at least equal to55 degrees and at most equal to 80 degrees and having an orientation that is the opposite of that of the angle AT of the working reinforcers, so that the carcass reinforcers and the working reinforcers constitute a triangulation system.

The invention discloses an unilateral anti-delamination sandwich plate with an oblique rib plate, which comprises an upper panel, a lower panel and a core material filled between the upper and lower panels. The inner side of the upper panel is uniformly provided with a plurality of upper ribs arranged obliquely, and the inner side of the lower panel is uniformly provided with a plurality of lowerribs arranged obliquely. the oblique included angle between the lower rib plate and the lower panel is 15 to 45 degrees, the friction coefficient between the core material and the upper rib plate is [mu] ', and the oblique included angle between the upper rib plate and the upper panel is smaller than tan<-1> [mu] '. The invention overcomes the delamination phenomenon of the sandwich plate by changing the structure form of the traditional sandwich plate and obviously improves the anti-penetration performance of the sandwich plate, can improve the protective performance of the ship, can reduce the weight of the ship, and improves the comfort and safety of the ship. The invention has convenient processing method and lower cost, and will be widely applied in the fields of ship structure, building structure, armored vehicle, bulletproof structure and the like.

The invention provides laminated glass for a vehicle window. The laminated glass comprises a first glass layer, a second glass layer and a composite middle layer arranged between the first glass layer and the second glass layer. The first glass layer and the second glass layer are non-chemically strengthened glass; the thickness of the first glass layer and the thickness of the second glass layer are both smaller than or equal to 2.1 mm. The composite middle layer comprises a first rigid layer, a flexible layer and a second rigid layer which are stacked in sequence; the first rigid layer is located between the first glass layer and the flexible layer; the second rigid layer is positioned between the flexible layer and the second glass layer; the elastic modulus of the first rigid layer and the second rigid layer is greater than or equal to 300Mpa; and the elastic modulus of the flexible layer is less than or equal to 10Mpa. The laminated glass has good impact resistance and penetration resistance, the thickness of glass in the laminated glass is small, and the weight of the laminated glass can be greatly reduced. The invention further provides a preparation method of the laminated glass for the vehicle window.

The invention discloses an assembled radiating fin with a transistor. The radiating fin comprises a radiating fin main body and a transistor. The radiating fin is characterized in that: the radiating fin main body is composed of a heat radiation surface and a clinging surface; the heat radiation surface is superposed on the clinging surface in transplacement and is provided with a screw hole that is used for fixing the transistor; the transistor is fixed above the heat radiation surface; the clinging surface is provided with a fixed screw hole and a surface of the transistor is provided with an insulating silica gel protective layer. According to the invention, the assembled radiating fin is mainly used for auxiliary heat radiation for a circuit board; and the assembled radiating fin has advantages of simple structure, good anti-breakthrough performance and good heat radiation effect for a transistor.

The invention relates to a lightweight FRP-octahedral lattice combined protection structure and a design method thereof. The protection structure comprises an FRP surface layer, the FRP surface layer comprises an FRP upper panel and an FRP lower panel, and an octahedral lattice core layer is clamped between the FRP upper panel and the FRP lower panel; the interior of the lattice core layer is hollow and has a good deformation energy absorption effect, the octahedral lattice structure is dominated by tensile deformation, the deformation bearing capacity is larger, the energy absorption effect is better, the octahedral lattice structure is provided with three symmetric planes perpendicular to one another and has the characteristic of three-dimensional isotropy, and by designing an orthogonal test and by means of finite element analysis software, the FRP-octahedral lattice combined protection structure can be optimally designed, the structure mass is reduced on the basis of meeting the protection grade, and the advantage of light weight is fully exerted; the defects that a traditional protection system is heavy and large in size can be overcome, transportation and construction are convenient, the protection performance is improved, and good application prospects are achieved in the aspects of military protection and civil buildings.

The invention discloses a ultra-low temperature anti-penetration PVB interlayer film. The interlayer film comprises an interlayer film body, wherein the interlayer film body is made from high-viscosity PVB resin, a fiber reinforced layer is compounded in the interlayer film body, and a plurality of bulges are formed on the upper surface and lower surface of the fiber reinforced layer; and a compound plasticizer which is triethylene glycol diisooctanoate is compounded in the interlayer film body. Compared with a conventional product, the interlayer film has the characteristic of better anti-penetration performance, can be applied to manufacture of interlayer safety glass and meet high-level safety requirements for strong penetration resistance, and can be widely applied to the fields of front and rear windshields of an automobile, bulletproof glass and the like, so that technological progress of a domestic PVB interlayer film is facilitated, the international competitiveness of the domestic PVB interlayer film is improved, and a positive promoting effect on the competitiveness and brand building of enterprises is achieved.