33 results about "Expanded polystyrene" patented technology

The invention discloses a light internal partition wall board and a preparation process thereof, and belongs to the technical field of building materials. The light internal partition wall board is prepared from the following main raw material components in parts by mass: 500 to 700 parts of slag washed sand, 1400 to 1600 parts of cement, 40 to 50 parts of flame-retardant light filler, 10 to 24 parts of flame retardant, 15 to 60 parts of air entraining agent, 8 to 24 parts of water reducing agent and 330 to 750 parts of water. Wherein the flame-retardant light filler is obtained by sequentially reacting expanded polystyrene particles with bis (pinacolato) diboron, 4-bromo-3-isopropyl benzoic acid and triisopropyl phenyl phosphate; the water reducing agent is prepared from polyvinyl alcohol; the prepared light internal partition wall board is high in compressive strength, good in fire resistance and light in mass.

The invention discloses a porous GNP / PDMS composite material, a preparation method thereof and application of the porous GNP / PDMS composite material in a flexible sensor, and belongs to the technical field of flexible sensors and preparation of the flexible sensors. According to the preparation method, expanded polystyrene microspheres are taken as sacrificial templates to be combined with glucose, a spherical pore structure is constructed through a vacuum infiltration method, graphene is dispersed in a PDMS matrix by adopting a multi-step ultrasonic dispersion technology, and porous GNP / PDMS composite materials with different graphene contents are obtained. On the basis, a conductive electrode and a flexible packaging layer are combined to construct a high-sensitivity flexible sensor. Results show that the GNP / PDMS composite material containing 4 wt.% of graphene shows excellent mechanical properties, the elastic modulus is 2.43 MPa, the maximum tensile strength is 1.46 MPa, meanwhile, the recovery of more than 99.6% is maintained after 200 times of compression cycles, and the composite material shows very strong mechanical stability.

The utility model belongs to the field of heat preservation structures, particularly relates to a building energy-saving heat preservation structure, and aims to solve the problems that a plurality of L-shaped clamping blocks are connected one by one in the prior art, the connectivity between heat preservation structures is poor, and the integrality is low, and provides the following scheme that the building energy-saving heat preservation structure comprises a wall body, and a cement leveling layer is arranged on one side of the wall body; an adhesion layer is arranged on one side of the cement leveling layer, a plurality of expanded polystyrene boards are arranged on one side of the adhesion layer, second reinforcing layers are arranged on one sides of the expanded polystyrene boards, the same glass wool fireproof layer is arranged on one sides of the second reinforcing layers, a first reinforcing layer is arranged on one side of the glass wool fireproof layer, and a second reinforcing layer is arranged on one side of the first reinforcing layer. The building energy-saving heat preservation structure has the advantages that the building energy-saving heat preservation structure has remarkable advantages in the aspects of heat preservation performance, structural stability, crack resistance, waterproof performance, construction convenience, environmental protection sustainability and the like, and a new solution is provided for energy conservation and heat preservation of modern buildings.

The utility model relates to a system for reducing expanded polystyrene (EPS) in a safety helmet. The system comprises a safety helmet crushing device, a screening device, a stirring device and a separating device, the method comprises the following steps: firstly, primarily crushing a safety helmet by using a safety helmet crushing device, then screening fragments of foamed polystyrene by using a screening device, and removing smudginess or foreign matters. The processed expanded polystyrene fragments in the safety helmet are conveyed to the stirring device to be subjected to a volume reduction chemical reaction with the liquid solvent, so that the volume is greatly reduced. Through multiple treatments of crushing, screening and the like, smudginess is gradually removed, expanded polystyrene resources in the waste safety helmets are reduced and recycled, and compared with a traditional method, the energy-saving effect is achieved.

System suitable for storing and / or transporting temperature-sensitive materials. In a preferred embodiment, the system may include a cooler made of expanded polystyrene foam. The cooler may include a base and a lid. The base may be a unitary structure that includes a cavity bounded by a bottom wall and four side walls. The base also may include an integral support that may include a platform elevated from the bottom wall, as well as a stanchion extending upwardly from the bottom wall along each of the side walls. The support may be constructed to removably receive a product box in the cavity and to orient the product box at an angle offset from the cavity. Dry ice pellets may be positioned around and under the product box, and additional dry ice pellets may be positioned in a tray mounted on the stanchions over the product box.

The invention provides a hydration heat in-situ self-foaming light composite board and a preparation method thereof. The light composite board is prepared from the following raw materials: an inorganic cementing material, expanded polystyrene particles and an active siliceous material, wherein the inorganic cementing material comprises quick lime. According to the preparation method, hydration heat released in the hydration process of quick lime is used as an endogenous heat source to induce expanded polystyrene particles to generate in-situ expansion foaming in a system, and meanwhile, a high-alkalinity environment is formed to promote cementitious materials such as silicon hydrochloric acid cement and active siliceous materials to generate inorganic gel on the surfaces of the expanded polystyrene particles; and a composite interface structure wrapped by inorganic gel is formed, so that the light weight of the board is reduced, the synergism and unification of the light structure, the mechanical property and the fireproof property are realized, and the organic-inorganic interface stability and the structural integrity are improved.

The application relates to the technical field of new wall building materials, and discloses a building energy-saving thermal insulation wall composite material and a preparation method thereof. The preparation method of the building energy-saving thermal insulation wall composite material comprises the following steps: loading eutectic hydrated salt in modified diatomite to obtain a diatomite-based phase change material; modifying the diatomite-based phase change material through 3-(2,3-epoxypropoxy) propyl trimethoxysilane and a flame retardant to obtain a functionally modified diatomite-based phase change material; mixing microsilica powder, the functionally modified diatomite-based phase change material, calcium oxide, double-coated foamed polystyrene particles, a polycarboxylic acid-based high-performance water reducing agent and deionized water in proportion, performing mold pressing, standing, demolding and obtaining the building energy-saving thermal insulation wall composite material; the building energy-saving thermal insulation wall composite material has good heat insulation performance and simultaneously has flame retardant performance, and can be used in an outer wall thermal insulation material with high fireproof performance.

The present invention relates to: a composition for increasing plant growth and biomass, the composition comprising, as an active ingredient, a fecal extract of mealworms fed with expanded polystyrene; and a use thereof. The fecal extract of mealworms in the present invention has the excellent effect of promoting plant growth and biomass, and thus can be effectively used as an active ingredient of a composition for increasing plant growth and biomass, a fertilizer composition, or a soil conditioner.

Adhesive obtained from an expanded polystyrene magma. The invention relates to an adhesive comprising a polystyrene magma and a chlorinated solvent selected from trichloroethylene, tetrachloroethylene, and mixtures thereof. The invention also relates to the process for preparing the adhesive according to the invention. The invention also relates to a bottle containing [Figure for the abstract: None]

Material for sound and heat insulation between a first structural component and a second structural component adjacent to the first structural component, with a material composition suitable and designed to have a flowable processing consistency in a first state and a flow-resistant construction consistency in a second state, characterized in that the material composition comprises a granulate of expanded polystyrene bound in an aqueous polymer matrix and a thixotropic agent, wherein the effect of the thixotropic agent leads to the second state in which the flow-resistant construction consistency is present.

This invention discloses a manufacturing process for a packaging composite board, relating to the field of packaging materials technology. The packaging composite board, from the inside out, comprises a polymer foam board layer, an adhesive layer, a kraft paper layer, a coating layer, and a printed film layer. The polymer foam board layer is made of expanded polystyrene board, the adhesive layer is primarily composed of polystyrene, the kraft paper layer is high-grammage, high-strength kraft paper, the coating layer is low-density polyethylene, and the printed film layer is a food-grade polyester printed film. A hot-pressing composite process is employed, precisely controlling the hot-pressing temperature to 180℃ to achieve integrated molding of each layer. The resulting packaging composite board exhibits excellent cushioning performance, an interlayer peel strength ≥75N / 15mm, a water absorption rate ≤0.25%, high surface printing clarity, and strong adhesion. The manufacturing process involves simultaneous lamination and one-step molding, resulting in high production efficiency and low energy consumption, making it suitable for large-scale industrial production.

To provide expandable polystyrenic resin particles which enable provision of a novel expanded molding that is excellent in dimensional stability at 95°C, has high heat insulation properties and flame retardant performance, and has a small content of VOC.SOLUTION: Expandable polystyrenic resin particles contain a resin composition containing a base material resin, a bromine-based flame retardant, and graphite, wherein the base material resin contains a styrenic copolymer resin containing a styrenic monomer unit as a constitutional unit, the resin composition has a glass transition point of 105°C or higher and 125°C or lower, and a content of the styrene monomer is less than 0.03 wt.%.SELECTED DRAWING: None

This invention relates to the building and construction industry where footing forms are used for preparing the foundation of a structure such as a building. In one embodiment, this invention relates to footing forms for pouring concrete foundation, wherein the footing forms are cut from polymeric foams, such as expanded polystyrene (EPS). In another embodiment, the polymeric foam-based footing form have drainage built into it. In yet another embodiment, the footing form comprises grooves for attaching spacing inserts for dimensioning the footing forms. In a further embodiment, the footing form is prepared from GPS or graphite-infused polystyrene.

The invention relates to the technical field of novel wall building materials, and discloses a building energy-saving thermal-insulation wall composite material and a preparation method thereof.The preparation method of the building energy-saving thermal-insulation wall composite material comprises the following steps that eutectic hydrated salt is loaded in modified diatomite, and a diatomite-based phase change material is obtained; the diatomite-based phase change material is subjected to modification treatment through 3-(2, 3-epoxypropoxy) propyltrimethoxysilane and a flame retardant, and the functionally modified diatomite-based phase change material is obtained; the preparation method comprises the following steps: mixing silica fume, a functional modified diatomite-based phase change material, calcium oxide, double-layer coated expanded polystyrene particles, a polycarboxylic acid high-performance water reducing agent and deionized water in proportion, and carrying out compression molding, standing and demolding to obtain the building energy-saving thermal-insulation wall composite material. The building energy-saving thermal insulation wall composite material has good thermal insulation performance and flame retardant performance, and can be used in external wall thermal insulation materials with high fireproof performance requirements.

This utility model relates to the technical field of EPE (expanded polystyrene) sheet cutting equipment, and discloses a sheet cutting device for EPE production and processing, including a cutting table, a U-shaped movable frame between opposite sides of the cutting table, a first drive motor on one side of the cutting table for driving the movable frame to move along the side of the cutting table, a first fixed frame located above the cutting table and adapted to the cutting table fixedly installed inside the movable frame, and several first telescopic devices with telescopic effect provided at the lower part of the first fixed frame. In this utility model, by providing several sets of cutting units at the lower end of the first fixed frame, the height of each set of cutting units can be controlled by the first telescopic devices, the first drive motor drives the movable frame to move along the upper part of the cutting table, and the pressing unit presses the EPE sheet together. Multiple sheets of EPE sheet can be processed in one cut, improving the efficiency of cutting EPE sheet.

A hot-melt adhesive having a base made from a process oil and polymer comprising either recycled expanded polystyrene (EPS) or recycled expanded polyethylene (EPE) is provided. The hot-melt adhesive comprises substantially equal parts process oil and polymer. The process oil is preferably an aromatic hydrocarbon process oil. Additional materials such as tackifiers and / or fillers can be added to adjust the specific properties of the adhesive for its intended use.

The article relating to this design is a cooler box constructed using materials suitable for insulation, such as expanded polystyrene, expanded polypropylene, and expanded urethane. The cooler box consists of a cooler box body, an outer lid, an inner lid, and a divider. The space inside the cooler box body can be divided into left and right sections by inserting the divider along grooves carved into the inside of the cooler box body. The position of the inner lid can be adjusted up and down indefinitely depending on the height of the contents, and the surface area in contact between the contents and the outside air can be reduced when opening and closing the outer lid, thus these components have functional unity for keeping things cool. The two inner lids are of the same shape and have two pairs of oval-shaped indentations for gripping with fingers. The lower part of the inner lid is made of an elastic material and is normally flat, but it can be pressed in and indented when fingers are used to grip it, allowing for a stable grip.

The invention relates to an installation for transforming a polymer, particularly expanded polystyrene, using a reagent, from an expanded solid state to an unexpanded amorphous state to obtain a magma of a pasty and flexible consistency. The installation comprises: a receiving chamber for receiving the polymer to be transformed; a grinding device for grinding the polymer; a treatment chamber comprising a spraying device for spraying the reagent onto the ground polymer to obtain a magma; a separation chamber comprising a dewatering device for dewatering the magma to extract a liquid containing the reagent, thus obtaining a dewatered magma; a first discharge device for removing the dewatered magma from the separation chamber; and a second discharge device for removing the extracted liquid from the separation chamber. Figure 1 (for the abstract)

The present invention relates to an EPS microbead insertion device for powder containing expanded graphite, in a structure in which an inner cylinder part is mounted inside an outer cylinder and an outer cylinder part, a first hollow shaft rotates to generate momentum to rotate a powder pellet in any direction, and an input end of the powder pellet, i.e., the upper part of the outer cylinder and the inner cylinder part, is inserted into the outer cylinder and the inner cylinder part. The first driving part is connected from the middle part of the upper part of the outer cylinder and the inner communication part and the belt of the belt pulley and the pulley adjacent to the hollow shaft, and provides power required by the rotation of the hollow shaft; the rotating second hollow shaft generates momentum so as to rotate the EPS draw bead in any other direction, and a second moving part which is arranged at the adjacent position of the hollow shaft and is connected with a belt of the pulley so as to provide power required by the rotation of the hollow shaft is composed of a second moving part; the moving part provides power needed by rotation of the hollow shaft through connection of the pulley and a belt at the center of the lower portion of the internal communication part of the pulley, and the EPS draw bead is composed of a rotating second hollow shaft so that momentum can rotate in any other direction.

This invention provides a method for producing recycled foamable polystyrene resin particles that can provide a recycled polystyrene foam molded article with excellent strength while using recycled materials as raw materials. [Solution] A method for producing recycled foamable polystyrene resin particles having a weight-average molecular weight of 250,000 (g / mol) or more, comprising a polymerization step of polymerizing styrene monomers onto a seed resin consisting of recycled polystyrene resin particles under predetermined conditions, and an impregnation step of impregnating the obtained polystyrene resin particles with a highly volatile foaming agent.

The present application relates to wave-absorbing material technical field, specifically to a kind of flame-retardant wave-absorbing material based on polystyrene foam and preparation method thereof.The present application uses one-dimensional magnetic sepiolite fiber and two-dimensional modified graphene oxide as raw material, three-dimensional directional porous structure composite aerogel is prepared by freeze drying, composite aerogel, flame retardant, film forming agent, dispersing agent, defoaming agent and deionized water are obtained to obtain wave-absorbing coating;Foamed polystyrene beads are put into wave-absorbing coating, and after stirring evenly, drying, molding, the flame-retardant wave-absorbing material based on polystyrene foam is obtained.The flame-retardant wave-absorbing material based on polystyrene foam prepared by the present application not only has excellent wave-absorbing performance, but also has excellent flame-retardant performance and mechanical properties.

This invention relates to the field of polypropylene foam bead preparation technology, and particularly to a method for preparing composite polypropylene foam beads, comprising the following steps: S1: mixing expanded polystyrene virgin particles with conductive carbon black, pre-stirring at 55-75°C, then adding an organic solvent and continuing stirring to obtain a coating slurry; S2: adding polypropylene foam beads to the coating slurry for surface coating, and performing pre-pressing treatment to obtain composite polypropylene foam beads. By coating the surface of the polypropylene foam beads with microwave-absorbing components, making them concentrated in the outer layer where they actually exert their microwave-absorbing effect, the amount of nano-absorbing components used is reduced while meeting the required resistance value for microwave absorption performance, thus lowering raw material costs; simultaneously, using highly flame-retardant polypropylene foam beads as a substrate, the resulting composite polypropylene foam beads and their molded bodies can still achieve a flame-retardant oxygen index of over 32% while meeting microwave absorption performance requirements.

To provide a method for smoothly opening a container in which a lid cover with a folded portion is completely fixed to a container body with a flange formed from expanded polystyrene paper using vacuum molding, without applying excessive force and crushing the container. [Solution] Based on the knowledge that the surface of a vacuum-formed foamed polystyrene paper container has a foamed layer and is of appropriate hardness, and because the polystyrene paper has an appropriate thickness (2-5 mm), cuts are made in the upper and lower parts of the framing part of the container body and the corresponding lower part of the lid, and by lifting it upwards, including the fixed part, the cross section of the sheet splits open with a popping sound. Furthermore, the opening is designed to adhere to the lid's membrane and not separate. Similarly, the same effect can be achieved by placing the container body, which has a fixed wavy perforated opening, into a lid that overlaps with the container body.

Formwork and insulation element made of expanded polystyrene (EPS), characterized in that it has a base body with a base width of 24 cm and a total height of 25 cm, wherein the end face has a stepped geometry consisting of an inclined outer surface, a horizontal fixing support (2) with a width of 4 cm and a vertically rising head section (6).

To provide tsunami shelters that can reliably protect evacuees from tsunamis caused by earthquakes. [Solution] A tsunami shelter 1 is constructed by stacking a triangular roof-shaped evacuation accommodation section 2, which has an evacuation space 6 inside, on the upper side of a buoyancy body 3, which is formed from expanded polystyrene resin into a roughly rectangular thick plate shape and has polyurea resin applied to its entire surface. With a tsunami shelter 1 constructed in this way, the buoyancy body 3 has extremely high impact resistance and abrasion resistance due to the application of polyurea resin. Therefore, even if the tsunami shelter 1 is swept away by a tsunami and its buoyancy body collides with floating objects such as driftwood, the buoyancy body will hardly be damaged, destroyed, or deformed as a result, and the shape of the tsunami shelter will be maintained, ensuring the safety of evacuees who board the tsunami shelter.

This invention relates to the field of expanded polystyrene (EPS) production technology, and discloses an automated molding control system and method for EPS. The system includes a detection module, a data analysis module, and a central control module. The detection module collects real-time data on mold temperature distribution, local density of the molded preform, and steam pressure. The data analysis module calculates a temperature fluctuation index based on the temperature data, obtains a dynamic density compensation coefficient using a density model, and determines the molding quality deviation level. The central control module adjusts the steam heating power according to the deviation level, determines and corrects the mold opening and closing rate by combining pressure and density change rate, and generates motion trajectory control parameters. The method includes data acquisition, calculation and analysis, parameter adjustment, and command output. This invention achieves automated and precise molding through multi-parameter collaborative control, improving quality stability and production efficiency, and is applicable to the production of related products.

The disclosure provides a novel approach to precast concrete components designed for outdoor kitchens and grill islands. By integrating Expanded Polystyrene (EPS) beads, composite fibers, and Fiber Reinforced Polymer (FRP) rebar into a concrete mix, a lightweight yet durable product is achieved. The alignment and assembly system utilizes composite pins and plates, facilitating precise and secure installation. Decorative features embedded within the concrete panels enhance aesthetic appeal. The disclosure addresses common issues related to weight, alignment, and durability, offering an improved solution for outdoor kitchen components.

The invention relates to the technical field of carbon fiber product manufacturing, in particular to a polymer mold core structure for manufacturing a carbon fiber product and a manufacturing process thereof.The polymer mold core structure comprises a base body, an adsorption layer and a latex layer which are sequentially compounded from inside to outside, and the base body is an expanded polystyrene forming part and is matched with the shape of an inner cavity of the carbon fiber product of a hollow structure; the adsorption layer is prepared from the following raw materials in parts by weight: 4-6 parts of calcium chloride, 9-11 parts of kaolin, 4-6 parts of starch, 0.04-0.06 part of yellow pigment, 4-6 parts of putty powder and 70-80 parts of water, and the raw materials of the adsorption layer are uniformly stirred and mixed; by arranging a composite structure of the base body, the adsorption layer and the latex layer, the adsorption layer can effectively improve the bonding stability of the base body and the latex layer by means of the characteristics of raw materials such as calcium chloride and kaolin, and the problems of falling and wrinkling easily caused when the surface of the EPS base body is directly coated with the latex layer are avoided; through the matching of the vulcanizing agent, the accelerant, the defoaming agent and other components in the latex layer, the forming quality of the latex layer can be greatly improved, and bubbles are reduced.

The invention relates to a load-bearing panel consisting of an expanded polystyrene (EPS) core, a metal frame that encases said EPS core, and two layers of mortar, one on each side of the load-bearing panel framework made up of said metal frame and said EPS core. The layers of mortar are made up of a mixture of solid aggregates selected from: Portland cement, micronised silica, polypropylene microfibre, cellulose powder and at least one rheological additive, in addition to liquid aggregates selected from: softened water and at least one resinous agent that induces the formation of microbubbles. Said load-bearing panel may be used to form wall panels, floor panels and ceiling panels. The invention further discloses a method for forming said load-bearing panel, and a construction system using an arrangement of load-bearing wall panels, load-bearing floor panels and load-bearing ceiling panels.

The application discloses a kind of waste old containing bromine flame-retardant foamed polystyrene high-efficiency separation, harmless digestion and recovery method, innovatively using high-efficiency extraction technology, and the fat bromine flame retardant is separated with polystyrene material with high efficiency, and then respectively through polymer recovery granulation, strong base debromination under phase transfer catalysis and bromine extraction technology, realize polystyrene material and bromine resource complete recovery and recycling.The application can realize 100% complete recovery of polystyrene material and bromine resource, the removal rate of fat bromine compound is greater than 99.9%, and the whole recovery process does not produce harmful waste, with green sustainable development concept.