31results about How to "With rigid structure" patented technology

The invention relates to a preparation method for high-intensity foam glass. Broken glass powder, CaCO3, borax, NaNO3 and flame-resistant fiber are added in a mill pot to be milled and mixed evenly; then the mixture is put in a mould and moved into a foaming furnace for preheating, foaming, foam stabilizing, quick cooling and annealing so as to obtain the foam glass. High-intensity fiber with high flame resistance is added to the foam glass, which is in favor of improving the mechanical property of the foam glass. Therefore, the foam glass prepared by the invention has high mechanical intensity, wider range of application than that of common foam glass and long service life. The foam glass can be combined with cement, steel or other high-intensity construction materials and has the advantages of durability and rigid structure. The foam glass can absorb the main part of explosion energy when facing shock wave.

The invention relates to a water-insoluble quaternary ammonium salt bactericide and the preparation method thereof. The germicide is prepared by adopting silica gel inorganic material as a carrier and grafting amino-quaternary ammonium salt or quaternary ammonium-quaternary ammonium salt functional groups on the surface. The water-insoluble quaternary ammonium salt bactericide has excellent antibacterial activity, and has the advantages that the bactericide has a persistent effect of quaternary ammonium salt antibacterial polymer and also has a high-efficiency, quick and broad-spectrum antibacterial effect; the raw material is widely accessible; the cost is low; the synthetic process is simple. The bactericide is water-insoluble, and can be activated, regenerated and reutilized after the antibacterial rate is reduced, and is widely applicable to the sterilization of the fluid media such as various industrial and domestic waters, etc. and the preparation of antibacterial materials.

The invention relates to a method for preparing lightweight high-strength foam glass, which comprises the following steps of: firstly, cleaning cullet, drying the cleaned cullet, and performing ball milling to form powder; secondly, mixing the cullet powder, SiC, borax, NaNO3 and high-strength high-temperature resistance fibers to obtain a batch mixture; thirdly, adding the batch mixture into a heat resistant steel die, and performing compaction and die filling; and finally, transferring the die into a foaming furnace, and sintering in phases of preheating, foaming, foam stabilization, rapid cooling and annealing to obtain the foam glass. The method is favorable for utilizing waste and protecting environment, and the prepared foam glass has the advantages of low density, high strength, low conductivity factors, simple preparation process and simple and convenient construction and operation. Therefore, the method can protect environment effectively and turn waste into wealth, and the high-strength foam glass block can absorb explosion energy, and reduce the physical and property damage caused by collapse of wall construction materials due to terrorist attacks or natural disasters.

A preparation method of high-density foam glass, firstly put cullet powder with a density greater than 3.0g/cm3 and SiC or TiN into a ball mill jar and ball mill to below 200 mesh and add it into a heat-resistant steel mold, and finally move the mold into Firing in a foaming furnace; Foamed glass is obtained after foaming, rapid cooling and annealing. The present invention uses cullets with various densities greater than 3.0g/cm3 as raw materials; SiC or TiN as foaming agent; the foaming agent SiC or TiN helps foam glass to produce crystals in the preparation process, which is beneficial to improve the foam glass brick. mechanical properties. Therefore, the high-density cellular glass can absorb the shock wave energy during the explosion. The foam glass can be combined with cement, steel or other high-strength building materials, used in the interior and exterior façades of the key surfaces of buildings in high-risk areas of terrorist attacks, and has the advantage of a rigid structure. When facing shock waves, the said Bricks can absorb a major part of the explosion energy.

The invention relates to a preparation method of high-strength porous glass, which comprises the following steps: firstly, cleaning glass cullet, and ball-grinding the glass cullet to 270 meshes or below to obtain glass powder; then, adding the glass powder, SiC, borax, NaNO3 and high-strength high-temperature-resistant high-silica fibers into a ball milling tank, and carrying out ball milling to obtain a glass batch; and finally, adding the glass batch into a heat-resistant steel mold to sequentially be subjected to a preheating stage, a foaming stage, a foam stabilizing stage, a quick cooling stage and an annealing stage, thus obtaining the foam glass. The density of the foam glass obtained by the preparation method is 0.1-0.6g/cm<3>, the pore diameter is 0.3-5.0mm, the pore size distribution is uniform, and the folding strength is up to 3.0-10.0MPa.

The present invention relates to a method for preparing a microporous metal layer on the macroporous metal surface. The specific process comprises: brushing a hydroxide slurry on the surface of a macroporous metal substrate by using a brushing method to block pores, drying, and progressively carrying out burnishing, washing and drying on the obtained surface of the metal substrate by using sand paper; mixing metal powder for preparing the microporous metal layer and an organic additive to prepare a suspension, coating on the surface of the metal substrate to form a billet, and carrying out high temperature sintering in an inert or reducing atmosphere; and finally using a chemical reagent and ultrasonic washing to remove the residual inorganic material in the substrate to obtain the high gradient pore structure porous metal.

The invention relates to a quickly-opened detachable heat-preserving box which is of a split symmetric structure, wherein the front portion and the rear portion of the structure are buckled. The quickly-opened detachable heat-preserving box is characterized by comprising a protective layer (1), a heat isolating layer (2) and a reflective layer (3), wherein the split symmetric structure is fastened through quickly-opened locking buckles (7), and the butt joint face of the split symmetric structure is fixedly provided with a sealing supporting plate (4). The quickly-opened detachable heat-preserving box can be widely used for heat preservation of pipelines, valves, flanges, heat exchangers and other special equipment in the fluid storing and transporting processes.

The invention discloses a building radiation cooling coating structure which covers the outer surface of a building and comprises a coupling agent layer, a solar spectrum radiation total reflection layer and an infrared emission layer from inside to outside. In particular to an infrared emission layer containing a polydimethylsilane and polymethyl methacrylate composite cooling material, which not only ensures a radiation cooling function, but also ensures the mechanical stability of a formed film. Sunlight is reflected through the solar spectrum radiation total reflection layer, absorption of energy in the sunlight is reduced, heat of a building is radiated outwards through the infrared emission layer, radiation absorption of sunlight in the daytime is reduced, meanwhile, release of infrared radiation with the wavelength of 8-13 micrometers at night is enhanced, and therefore the overall temperature of the building is reduced.

A vehicle component may include a sandwich structure having a first supporting sheet, a second supporting sheet, and an essentially planar electro-chemical battery. The essentially planar electro-chemical battery may be arranged between, and abutting against, the first and the second supporting sheets.

The invention relates to a UV double-component double-curing structural adhesive. The structural adhesive is characterized by comprising a component A and a component B, wherein the component A is a main agent part, the component B is a curing agent part, and the volume ratio of the component A to the component B in a double-component rubber tube is 1:1; the component A comprises acrylic resin, bisphenol polyether polyol with an acrylic acid structure, epoxy resin and a polymerization inhibitor; and the component B comprises bisphenol polyether polymercaptan, a photoinitiator and a peroxide radical initiator. The structural adhesive has good strength and flexibility, has a good refractive index due to the sulfur element, realizes a good transparent optical effect, can control the pre-fixing time by using UV, can solve the problem of curing of a shadow part of the UV glue, and can be widely applied to the fields of structural bonding and gap filling.

The invention discloses a high-temperature-resistant heat-insulating protective garment and a preparation process thereof, and relates to the field of protective garments, and the high-temperature-resistant heat-insulating protective garment is prepared by selecting a polysulfonamide fabric, performing flame-retardant finishing by using an after-finishing flame retardant, soaking the polysulfonamide fabric in an anti-static liquid, dipping, drying, and coating the surface of the fabric with a polytetrafluoroethylene coating, thereby obtaining the high-temperature-resistant heat-insulating protective garment. The anti-static breathable layer, the heat insulation layer and the flame-retardant layer are sequentially compounded, and the problems that an existing protective garment is poor in heat insulation performance, cannot well block heat energy outside the protective garment and is not ideal in flame-retardant effect are solved; the compounding of organic and inorganic materials can realize complementary advantages, and gives consideration to the mechanical property, weaving property, heat insulation and open fire resistance of polysulfonamide, so that the heat insulation property of the fabric is improved, the flame-retardant layer can prevent combustion products from escaping and inhibit thermal decomposition of materials under the layer, the flame-retardant, low-smoke and low-toxicity effects are achieved, a cracked carbon layer is formed on the surface of the polysulfonamide, and the flame-retardant, flame-retardant and flame-retardant effects are achieved. And the oxidation resistance of the cracked carbon layer is improved, so that the flame-retardant purpose is achieved.

The invention relates to the technical field of automobile manufacturing, and concretely to an automobile interior decorative part and a preparation method thereof. The automobile interior decorativepart includes a fabric and composite resin connected to the fabric in an injection moulding manner. The composite resin is prepared by the following raw materials based on 100 parts of epoxy resin, byweight: 100 parts of epoxy resin, 5-20 parts of a chlorine source, 10-40 parts of polyether polyol, 12-48 parts of isocyanate, 5-12 parts of a catalyst, 3-15 parts of reinhanced fibers, 1-10 parts ofa chain extender, 2-8 parts of a surfactant, 10-15 parts of a curing agent, and 80-200 parts of an organic solvent. According to the method, the epoxy resin is modified by using the chlorine source so as to improve the flame retardant and smoke suppression properties of the epoxy resin. The epoxy resin continuously reacts with the polyether polyol and the isocyanate to produce the composite resinof the epoxy resin and polyurethane. Through the synergistic effect of the epoxy resin and the polyurethane, the composite resin can have high toughness, high strength and excellent flame retardancy.

The invention relates to a submicron organic spiro aluminum phosphate flame retardant and a preparation method thereof, which belong to the field of fire retardants. The structural formula of the submicron organic spiro aluminum phosphate flame retardant is as follows (see the description). The preparation method comprises the steps of firstly, hydrolyzing pentaerythritol phosphate (DPP) in an alcohol-water solution under the action of alkali, so as to prepare a solution of sodium salt or sylvite II, and then reacting the prepared pentaerythritol phosphate sodium or sylvite in heating and violent mixing conditions, so as to prepare the organic spiro aluminum phosphate flame retardant. The particle size of prepared organic spiro aluminum phosphate is less than 0.7 mum, the particle size distribution range is narrow and achieves the submicron level, and the consumption of the flame retardant in polymers can be effectively reduced. According to the preparation method, the phosphorus based flame retardant and aluminum salt with good flame retardation are designed in a molecule, so that the problems of formulation of the flame retardant in the flame retardant process of materials and unevenness of distribution of respective components of a flame retardant system are basically solved.

The invention belongs to the technical field of bio-based chemicals, and discloses a continuous preparation method of polymer-grade carbohydrate diol. The preparation method comprises the following steps: under the action of a catalyst, carrying out free water removal, intramolecular primary dehydration, intramolecular secondary dehydration, drying dehydration, distillation refining and granulation/packaging on the glucitol through six continuous processes by utilizing a thin film distillation device, a thin film reaction device and a flash evaporation device, and finally preparing the saccharide diol with the purity of more than 98% and meeting the polymer grade requirement. The operation process for continuously preparing the carbohydrate diol is simple and convenient, the automation degree is high, and industrialization and large-scale industrial production can be effectively achieved. The product disclosed by the invention is applied to copolymerization modification materials and bio-based plasticizers of polyterephthalic acid, adipic acid and butanediol (PBIAT), and a good effect can be achieved.

A supramolecular luminescent gel system constructed by sulfonated cyclodextrin-bromophenylmethylpyridinium salt-aminoclay and its preparation method, wherein sulfonated cyclodextrin is used as the main body, bromomethylphenylpyridinium salt is used as the object, A novel supramolecular xerogel in which SCD is non-covalently bonded to aminoclay was successfully constructed using bromophenylpicoline based on electrostatic interaction and host-guest interaction. This xerogel network has a rigid structure that effectively immobilizes the phosphor, limits vibration dissipation, and enables the xerogel to emit RTP. In this system, SCD plays a crucial role in maintaining the emission behavior of the monomer, and AC provides a layered layer for PYCl through the strong suppression of phosphor vibration by the electrostatic gel network structure and the non-radiative relaxation process. environment, this supramolecular xerogel can generate a strong RTP signal. In addition, the xerogel has a certain responsiveness to humidity and has potential applications in organic light-emitting materials and humidity sensing.