20 results about "Polystyrene particle" patented technology

This invention discloses a high-performance vitrified microsphere composite polystyrene particle insulation board and its preparation method, comprising the following steps: premixing hydrophobic vitrified microspheres and expandable polystyrene particles coated with expanded graphite at a mass ratio of (2.5~4):1 to obtain composite lightweight aggregate. The insulation board prepared by this invention, with a dry density of only 184-193 kg / m³, exhibits a compressive strength as high as 0.275-0.302 MPa, significantly superior to traditional inorganic insulation boards (0.15-0.25 MPa) and organic insulation boards (0.10-0.15 MPa); its thermal conductivity is as low as 0.034-0.041 W / (m·K), and its insulation efficiency is more than 40% higher than that of traditional inorganic materials, while also possessing Class A fire safety performance; furthermore, the process is simple and controllable, with an industrial solid waste utilization rate of up to 70%, demonstrating significant economic benefits and environmental value, and possessing broad prospects for widespread application.

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 utility model discloses a kind of homogeneous body combination sandwich self-insulation blocks, it includes self-insulation block body, light concrete homogeneous structure layer, heat-insulating homogeneous structure layer and connecting piece;The heat-insulating homogeneous structure layer is made of heat-insulating core material, and is installed in the length direction of self-insulation block body by connecting piece, and heat-insulating homogeneous structure layer is equipped with four corner-cutting or through-hole.The light concrete homogeneous structure layer covers heat-insulating homogeneous structure layer except the exposed surface of two ends required to ensure the continuity of heat insulation and all other parts and connecting piece, and the light concrete homogeneous structure layer is made of cement polystyrene particle microporous concrete pouring.The utility model is inserted into connecting piece by cutting corner or punching treatment to four corners of heat-insulating core material, and the two ends of connecting piece are anchored and connected with the two sides of heat-insulating core material Light concrete, improve the restriction to core material thermal expansion, solve the problem that core material and product concrete are separated during the construction of traditional insulation block, so that self-insulation block has stable structure and heat-insulating fireproof performance.

The present application relates to the technical field of thermal insulation homogeneous bricks, and particularly discloses a cement thermal insulation homogeneous brick, which comprises cement, shale mineral powder, modified vitrified microbeads, lime, polymer glue powder, perlite, reinforced fiber, EPS polystyrene particles, deionized water, calcium carbonate, calcium silicate, magnesium borate, straw powder, AR glass fiber, carboxymethyl cellulose, water reducing agent, foaming agent, foaming regulator, catalyst, crosslinking agent, foam stabilizer and glyoxal, and the components are respectively 300-400 parts of cement, 42-45 parts of shale mineral powder, 33-38 parts of modified vitrified microbeads, 15-25 parts of lime, 2-5 parts of polymer glue powder, 15-18 parts of perlite, 8-12 parts of reinforced fiber, 10-15 parts of EPS polystyrene particles, 200-300 parts of deionized water, 2-3 parts of calcium carbonate and 2-3 parts of calcium silicate in terms of weight ratio. The present application can effectively solve the problems of low structural strength, poor fire resistance and thermal insulation performance and failure to meet the use requirements of the existing cement thermal insulation homogeneous bricks.

This utility model discloses a composite autoclaved aerated concrete (AAC) panel structure and an energy-saving wall system comprising it. The composite AAC panel structure includes an AAC panel and a high-efficiency insulation layer. The high-efficiency insulation layer is a composite insulation mortar containing expandable polystyrene particles or a foamed polyurethane material. The AAC panel is used as a base mold for pouring the high-efficiency insulation layer onto the AAC panel, followed by curing to connect the high-efficiency insulation layer to one or both sides of the AAC panel. This ensures that the high-efficiency insulation layer and the AAC panel are cast and bonded together, effectively preventing detachment and greatly improving the safety and stability of the composite AAC panel structure. The high-efficiency insulation layer, being a composite insulation mortar containing expandable polystyrene particles or a foamed polyurethane material, is flame-retardant and fireproof while also providing excellent insulation performance, ensuring both the insulation and fire resistance of the composite AAC panel structure.

The application discloses a hidden modular wallboard suitable for variable space, comprising: a plurality of groups of L-shaped angle steels embedded in a concrete top plate, each group of L-shaped angle steels being provided with spring lock points; upper and lower rails respectively detachably connected with the spring lock points through screw rods; an aluminum alloy frame batten comprising vertical battens, upper cross beams, lower cross beams and middle cross beams, wherein the upper cross beams and the lower cross beams are connected with the vertical battens through corner codes, and the middle cross beams are fixed with the vertical battens through screw eyes; a modular polystyrene particle board embedded in the aluminum alloy frame batten; and a magnetic wallboard magnetically connected with the aluminum alloy frame batten through customized magnetic strips arranged on both sides of a groove of the cross beam. Through detachable buckle connection of the upper and lower rails with the wallboard and a magnetic installation mode of a finishing layer, lossless, quick disassembly, replacement and change of the wallboard main body and the finishing layer are realized, and the flexibility of space change is greatly improved and the reconstruction cost is reduced.

This utility model relates to the field of automatic spraying of polystyrene particle thermal insulation mortar, and discloses an automatic spraying device for polystyrene particle thermal insulation mortar, including a base plate, a fixed column fixedly connected to the upper end of the base plate, a bracket contacting the upper end of the fixed column, a rotating shaft rotatably connected to the upper inner wall of the bracket, a gear fixedly connected to the outer wall of the rotating shaft, an electric telescopic rod fixedly connected to the inner wall of the bracket, a toothed plate fixedly connected to the rear end of the electric telescopic rod, a clamping ring fixedly connected to the left side of the rotating shaft, a pipe fixedly connected to the inner wall of the clamping ring, and a pump body installed on the pipe. In this utility model, by setting the toothed plate, gear, and clamping ring, the operation of the electric telescopic rod drives the toothed plate to reciprocate, and the movement of the toothed plate drives the rotating shaft and clamping ring to rotate through the gear. During spraying, the rotation of the clamping ring causes the nozzle to swing, expanding the spraying range and improving the spraying efficiency.

This invention relates to a conveying device for graphite polystyrene particle composite insulation boards, comprising a conveyor roller assembly driven by a conveyor for conveying the insulation boards, a fixed base, and a grinding plate. A traction member connects two adjacent rotating plates, causing the two grinding plates to rotate upwards and move closer together, thereby engaging the edges of the insulation board with the two grinding plates and forming a tight seal. The device also includes a pressure column for pressing and driving the grinding plates, a first rotating plate, and a second rotating plate. A bending member is provided between the first rotating plate and the pressure column, causing the pressure column to rotate along the second rotating plate. A wiping plate that mates with the grinding plates is provided at the end of the second rotating plate. This application integrates the conveyor roller assembly, grinding plate, pressure column, and wiping plate into one unit, achieving continuous automated operation from conveying the insulation boards to edge grinding and tool cleaning, greatly improving production efficiency and process continuity, and reducing manual intervention and additional equipment investment.

The present application relates to the technical field of experimental consumables, in particular to a low surface free energy culture dish and a preparation method thereof. The present application discloses a low surface free energy culture dish and a preparation method thereof. The material of the culture dish comprises: 75-80 parts by weight of polystyrene particles; 10-40 parts by weight of a polymer; 1-5 parts by weight of a plasticizer; and 1-5 parts by weight of an anti-aging agent, wherein the polymer comprises a high polymer and a block copolymer. The culture dish provided by the present application has high light transmittance, is resistant to scratching, has aging resistance, and is suitable for wide promotion of stem cell research. The preparation method of the culture dish provided by the present application simplifies the process flow, directly uses an extrusion process, and reduces the emission of inhalable toxic and harmful substances compared with a vacuum coating process.

The application discloses a multi-professional integrated variable space modular wallboard which can be disassembled without damage, comprising: a plurality of prefabricated wallboard units which are detachably connected through I-shaped aluminum connecting pieces; each wallboard unit comprises: an aluminum alloy frame keel, at least one middle beam of which is internally provided with a cavity for penetrating mechanical and electrical pipelines; a modular polystyrene particle board which is embedded in the aluminum alloy frame keel; mechanical and electrical pipelines which are integrated in the cavity of the middle beam and are provided with quick plug-in mechanical and electrical connectors at the ends; and beam grooves which are arranged at the upper, middle and lower ends of the wallboard unit. The quick mechanical assembly of the wallboard unit is realized through the I-shaped aluminum connecting pieces, and the buckle connection with the upper and lower tracks is combined, so that the wallboard body and the integrated mechanical and electrical system can be disassembled and recombined without damage and quickly on the premise of ensuring the overall impact stability, and the problems of single function and difficult transformation of traditional wallboards are fundamentally solved.

This utility model discloses a polystyrene particle cement sandwich insulation board structure, including a first polystyrene particle cement core layer, with second polystyrene particle cement core layers installed at both ends of the first polystyrene particle cement core layer. A cement surface layer is installed on the side of the second polystyrene particle cement core layer away from the first polystyrene particle cement core layer, and reinforcing ribs are inserted inside the first polystyrene particle cement core layer. This utility model, by setting a first polystyrene particle cement core layer with high polystyrene particle density and a second polystyrene particle cement core layer with low polystyrene particle density, forms a gradient insulation structure with different densities. The gradient structure may optimize the balance between insulation and strength; the low-density layer may provide better structural support, while the high-density layer is lighter and has better insulation performance; thus, the strength of the board is guaranteed without sacrificing insulation performance.

Method for processing used expandable polystyrene material with adhering substances comprising the following process steps: - Deformation of the elastic particles of expandable polystyrene in a decontamination plant (1) without cutting comminution such that the adhering substances of adhesives and / or plasters and / or PU foams and / or solid paints flake off, while preserving the pearly and cellular structure of the expandable polystyrene; - Separation of the mixture of substances consisting of adhering substances and particles of expandable polystyrene by density separation in a separation device (2).

The application discloses a production process and production equipment of reinforcing ribs for AA structure composite heat-insulation boards, and the process comprises the following steps: mixing grey portland cement, polystyrene particles, fibers and additives according to specific proportions to prepare light slurry, forming a non-woven fabric-glass fiber mesh cloth sandwiched multi-layer structure blank body in a mold, and obtaining a semi-finished product plate after stage curing; and then cutting the semi-finished product plate into a plurality of reinforcing ribs by using numerical control equipment at one time. The equipment comprises a collecting pool, a cutting mechanism, a dispersion mechanism and a cleaning mechanism; the cutting mechanism realizes synchronous and precise cutting of multiple knives; the dispersion mechanism automatically separates the reinforcing ribs in the transverse direction; the cleaning mechanism realizes surface self-cleaning through spraying, rolling and water squeezing; a cooling pipe locally cools the knife edge; and a conveying belt is provided with a knife-avoiding groove to prevent cutting damage. The application solves the problems of high density, obvious heat bridge, low cutting efficiency, incomplete cleaning, easy damage of the knife and the like of traditional reinforcing ribs, and realizes efficient, green and automatic production of light, high-strength and low-heat-bridge reinforcing ribs.

The present invention relates to a microcarrier for cell culture containing polystyrene particles, a method for producing a microcarrier for cell culture, and a cell culture composition using the same.

This utility model discloses a portable emergency safety helmet, belonging to the technical field of protective equipment. Existing helmets suffer from problems such as fixed cushioning and protective structures, inconvenient head circumference adjustment, and difficulty in balancing protective effectiveness and wearability. This helmet includes a helmet body, a cushioning and protective component, and a head circumference adjustment component. The cushioning and protective component comprises a basic cushioning layer and an emergency protective layer. The basic cushioning layer is connected to the inner wall of the helmet body and is a gradient-density EPP foam layer. The emergency protective layer is an elastic cloth bag with built-in expandable polystyrene particles, connected to the basic cushioning layer by a snap fastener. The head circumference adjustment component includes an annular airbag and a manual inflation pump. The annular airbag fits against the lower part of the inner wall of the helmet body, and the manual inflation pump is connected to the annular airbag via an air duct and located on the outside of the helmet body. This helmet is mainly used for effective head protection in emergency scenarios, adapting to users with different head circumferences, improving wearing comfort and protective reliability.

This invention discloses a cement-based polystyrene insulation board and its preparation method, belonging to the field of building energy conservation technology. The insulation board comprises, along its thickness direction, a base bonding layer, an insulation core layer, and a weather-resistant finishing layer. These three layers form an integrated, continuous gradient structure without rigid interfaces, with thickness proportions of 18-23%, 55-65%, and 18-23%, respectively. The dry powder raw materials for each layer include silicate cement, desulfurized gypsum, slag powder, graphene polystyrene particles, latex powder, nano-silica, lignin fiber, composite flame retardant, hydroxypropyl methylcellulose ether, and a chlorine-free composite early-strength agent. This invention, through its functionally graded formulation and continuous gradient structure, eliminates interlayer interfaces, achieving low thermal conductivity, Class A fire resistance, high bonding strength, and rapid demolding. Furthermore, it makes extensive use of industrial solid waste, making it environmentally friendly.

The application is suitable for the technical field of fabricated building, and provides a modified polystyrene particle fabricated floor support plate and a modular production method thereof, including the following steps: loading polystyrene particle raw materials and boiler biomass combustion materials; foaming the polystyrene particle raw materials into foam particles; making the modifier fully contact with the foam particles through a double-shaft double-spiral-blade self-control modification system to complete uniform modification; adding the modified foam particles into a full-automatic stirring system to prepare modified polystyrene particle concrete, and conveying the modified polystyrene particle concrete to a designated pouring position of a robot through a self-suction pump and a rubber hose; meanwhile, welding of truss reinforcement on a formwork is completed; formwork pouring and surface treatment are performed, and finally, a modified polystyrene particle fabricated floor support plate product is obtained. The application realizes uniform modification of the polystyrene particles, enhances the strength of the floor support plate, reduces the cost, improves the production and construction efficiency, and simultaneously has a significant heat preservation, sound insulation and noise reduction function.

The present invention relates to a microcarrier for cell culture containing polystyrene particles, a method for producing a microcarrier for cell culture, and a cell culture composition using the same.

The application relates to the technical field of expandable polystyrene, and discloses expandable polystyrene particles with high foaming ratio, a preparation material and a preparation method, the preparation method comprising the following steps: prepolymerization, demonomerization and volatilization, mixed extrusion, underwater pelletization, screening and drying and foaming treatment; in the application, through the adoption of nanometer grinding and reaction extrusion polymerization technology, a rubber phase is uniformly dispersed in a polystyrene matrix in a nanometer scale and forms a stable chemical crosslinking network, the compatibility of the matrix material is improved, a polymer matrix with uniform structure and high strength is constructed for a subsequent foaming process, the problems of coarse cells and collapse are avoided, high ratio and uniform and fine cell structures of the foaming material are ensured, and the impact toughness and the dimensional stability of the material are improved.

The application discloses a dumbbell-shaped Janus solid base catalyst and a preparation method and application thereof. The dumbbell-shaped Janus solid base catalyst is prepared through the following steps: first, polystyrene latex is prepared through an emulsion polymerization method; then, core-shell structure chlorinated polystyrene particles are obtained by using a seed emulsion polymerization method to polymerize on the polystyrene particles; next, the dumbbell-shaped Janus particles are obtained by using a seed swelling polymerization method with the chlorinated polystyrene particles as seeds; finally, the dumbbell-shaped Janus solid base catalyst is obtained through amination. The method avoids the problem of poor stability of the spherical solid base catalyst, one half of the dumbbell-shaped Janus is hydrophobic pure polystyrene, and the other half is amphiphilic due to the unilateral grafting of the organic base, thereby effectively improving the stability of the particles. Meanwhile, the catalyst is easy to separate, and the reusability of the catalyst is effectively improved. The prepared solid base catalyst can be used in the reaction of ester exchange for preparing biodiesel, and has the characteristics of high activity and simple recovery and separation.