39 results about "Polystyrene" patented technology

A polystyrene-based resin composition containing a styrene-based resin with mainly syndiotactic configuration, a polyamide, and a rubber polymer as main components. Styrene-based resins of mainly syndiotactic configuration include polystyrene, poly(alkylstyrene), poly(halogenated styrene), poly(alkoxystyrene), styrene copolymers comprised of polymerized units of at least of styrene, alkylstyrene, halogenated styrene and alkoxystyrene, and mixtures thereof

A making method of a composite type biological chip based on a photonic crystal comprises four steps which are preparation of hard substrates, preparation of photonic crystal thin membranes, connection of membranous substrates and surface treatment of the substrates. (1) the preparation of hard substrates: common hard substrates are cleaned by soapy water, washed by de-ionized water and dried, and amino-group or hydroxyl is decorated on the surfaces of the substrates; (2) the preparation of photonic crystal: the nano-microspheres such as specific monodisperse silicon dioxide or polystyrene and the like, which are different in size according to the positions of testing signals, are assembled on the surfaces of the treated substrates to form the photonic crystal thin membrane with the thickness of 20 to 30 microns (3) the connection of membranous substrates: the surface of the photonic crystal thin membrane is laid with a layer of the membranous substrate and the connection is fixed by utilizing the chemisorption or the mutual function between positive and negative charges; (4) the surface treatment of the substrates: by using the methods such chemisorption and the like, chemical groups which can be fixedly connected with biomolecules to be tested are decorated on the membranous layer parts of the surfaces of the composite substrates which are formed in the step (3).

The invention discloses a phosphor-silicon-containing aggregated flame retardant and a preparation method thereof. The preparation method comprises the following steps: adding 10-(2,5-dihydroxy phenyl)-9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and an acid-binding agent into a reactor loaded with a burette, a condensing tube and a nitrogen protection device, heating to 40 to 100 DEG C; weighing R1, R2-dichlorosilane, adding a solvent, and adding the mixture into the burette; adding the mixture at the temperature of 40 to 100 DEG C dropwise, and performing a thermal reaction for 2 to 10 hours after finishing of dropping; adding a precipitant, performing suction filtration, washing filter cakes with the precipitant, and drying to obtain the phosphor-silicon-containing aggregated flame retardant. The phosphor-silicon-containing aggregated flame retardant has high phosphor content and silicon content, abundant carbon sources, high char forming characteristic, superior flame retardance and thermal stability, and can be applied to high-molecular materials such as flame-retardant polypropylene, polystyrene and epoxy resin.

The invention provides a ceramic floor tile with diatom mud and a method for manufacturing the ceramic floor tile. The ceramic floor tile comprises a base layer, a surface layer and an adhesion layer. The adhesion layer is arranged between the base layer and the surface layer, and the base layer is made of the diatom mud, feldspar, kaolin, quartz, clay, porcelain clay, moire stone, marble, broken iron, polystyrene and polyacrylate; the surface layer is made of the diatom mud, Kunshan stone, carborundum disc stone, colorants, pebble, glass cloth, plastic particles, polyurethane, ethylene-ethylic acid ethylene copolymers, silicon dioxide and aluminum oxide. The ceramic floor tile and the method have the advantages that the ceramic floor tile is made of nontoxic and pollution-free raw materials, and the diatom mud which is a main material is easy to obtain, is natural and pollution-free and has diversified sterilization, disinfection and waterproof merits; the ceramic floor tile is made of the easily available materials, processing and manufacturing processes are simple, and the ceramic floor tile manufactured by the aid of the method is high in smoothness and quality.

Environmental-friendly foaming plastic and a preparing method thereof are disclosed. The plastic comprises following raw materials by weight: starch-grafted ABS, polylactic acid (PLA), poly(hydroxy ester ether), plant powder, wood fiber, a silane coupling agent KH550, aluminate, ethylene vinyl acetate copolymer (EVA), polystyrene (PS), dipentaerythritol ester PCB, glycerin, polyethylene wax, azodicarbonamide (AC), p-toluenesulfonhydrazide (TSH), nanometer calcium carbonate, superfine talcum powder, kaolin, titanium dioxide, an antioxidant 2246 and an antioxidant BHT. The plastic has good heat resistance, corrosion resistance and processing performance like traditional foaming plastic and is excellent in biodegradability so as to avoid environment pollution.

The invention discloses a polystyrene photon crystal and the optic switch using the polystyrene photon crystal. The photon crystal makes quartz as a basal lamina where preparing a layer of polystyrene film on which periodic tetragonal arranged bores are etched. The optic switch comprises: a polystyrene photon crystal whose two end in the lateral direction are respectively connected with a first polystyrene film wave-guide and a second polystyrene film wave-guide, a first edge glass and a second edge glass. The invention has the advantages of: the semi-conducting material is replaced with the polystyrene, the high switch contrasted optical switch is realized by the third-order non-linear coefficient of the polystyrene, the time response is less than 25 fs, the preparation is simple, the using and measuring is convenient, the integration is suitable.

The invention provides a novel acrylic pressure-sensitive adhesive. The raw materials for preparing the novel acrylic pressure-sensitive adhesive at least comprise acrylic acid, acrylate, a solvent, an initiator and a plasticizer. The novel acrylic pressure-sensitive adhesive provided by the invention has a simple formula, is not added with additives such as an anti-aging agent, tackifying resin,and a softener, and has good adhesive property to most polar material surfaces or porous material surfaces, such as metals, cement, paper, wood, and ceramics. At the same time, the novel acrylic pressure-sensitive adhesive also has good adhesive property to plastics and fibers such as polyvinyl chloride, polyester, polystyrene and polyolefin treated by corona. The pressure-sensitive adhesive provided by the invention can be reused, can still maintain good adhesive characteristics after being pasted and peeled off for many times, and the peeling strength does not obviously drop; and the pressure-sensitive adhesive can be easily separated from an adhered object and does not cause transfer of an adhesive layer after being adhered for a long period of time or after being subjected to a large amount of pressure.

PURPOSE: A buoy for the cultivation of marine products and a manufacturing method thereof are provided to enhance the hardness of a buoy. CONSTITUTION: A buoy for the cultivation of marine products comprises a bag extruding device(10), a bag molding device(20), a radiation cross-linking device(30), and a stretching unit(40). The bag extruding device supplies synthetic resin and extrudes a bag. The bag molding device supplies air inside a bag and molds the bag in the shape of a cylinder. The radiation cross-linking device radiates ultraviolet rays or infrared rays and improves chemical and mechanical properties. The stretching unit supplies a bag to the radiation cross-linking device and stretches the length and diameter of the bag.

A method of constructing seismic shock absorbing structure which transfers horizontal and vertical forces from the floor to allow buildings to withstand earthquake shocks. In a first embodiment, foundation column is structurally designed and casted in the form of a fin shape below plinth level. In another embodiment, strength of the construction frame is enhanced by structurally designing, casting and slotting in at least one of rhombus shaped beams, diagonal cross beams, corner beams, plus shaped beams, rectangle shaped beams, semi-quarter circular beams in horizontal, vertical and inclined directions at the plinth level, below and above the plinth level. In another embodiment, wall is interlocked with at least one of Reinforced Cement Concrete (RCC), cement composites, steel, iron, metal, concrete, polystyrene, polyurethane, wood, plastic, fired bricks, cardboard and clay blocks. In another embodiment, interlocked wall is reinforced with GI (Galvanized) welded mesh, fiberglass mesh and wire mesh.

This invention relates to an oil-extended natural rubber capable of improving a tensile strength and a wear resistance of a rubber composition, and more particularly to an oil-extended natural rubber formed by adding an emulsified extension oil to a natural rubber latex and further coagulating and drying them. An amount of the extension oil added is preferable to be within a range of 5-80% by mass based on a rubber component in the natural rubber latex and the oil-extended natural rubber is preferable to have a weight average molecular weight as converted to polystyrene of a rubber component of not less than 1,500,000.

The invention discloses a high-strength light insulation board and a production method thereof. The high-strength light insulation board comprises, by weight, 40-60 parts of desulfurized gypsum, 20-30 parts of artificial fibers, 10-20 parts of calcium oxide, 10-20 parts of attapulgite, 5-15 parts of polyurethane, 8-12 parts of polystyrene, 2-4 parts of auxiliaries and 20-30 parts of water. The auxiliaries include foaming agents, early strength agents and water repellents. The preparation method of the insulation board includes the steps: firstly, conveying the desulfurized gypsum, the calcium oxide and the attapulgite into a tubular ball mill for grinding; secondly, conveying grinded raw materials and residual raw materials into stirrer for mixing and stirring; thirdly, injecting the raw materials into a mold by air pressure and extruding the raw materials; finally, performing steam curing on the formed insulation board. The insulation board has the advantages of high fracture resistance and tensile strength, good fireproof performance, light weight and the like. The raw materials are wide in source, simple to prepare, low in cost and suitable for large-scale production, development of energy-saving and environment-friendly building materials is promoted, and living safety and comfort of people are improved.

The invention discloses a heat insulation and decoration clad plate for the outer wall of buildings. The structure of the clad plate from top to bottom successively is a polystyrene foam plastic board, a polyurethane layer and a polyvinyl chloride board. The manufacture technique is that: the polystyrene foam plastic board and polyvinyl chloride board are cut into pieces with the same specification; a well-blended polyurethane foaming agent is daubed or sprayed on the polystyrene foam plastic board; the polyvinyl chloride board is tidily clasped on the polystyrene foam plastic board daubed or sprayed with the polyurethane foaming agent; air is given to press the clasped polystyrene foam plastic board and polyvinyl chloride board by a tooling compound machine. The pressed clad plate is the finished product. The clad plate disclosed by the invention has the advantages of light weight, good decorative effect, low cost, water resistance, acid and alkali resistance, flame retardancy as well as simple and convenient construction, safe use, diversified colors and patterns, meanwhile, the invention functions well in the heat insulation, thermal insulation, decoration and protection of the buildings and is widely applicable to the installation and application of various buildings.

The invention provides a high voltage direct current cable insulating material and a preparation method thereof, wherein the high voltage direct current cable insulating material comprises a main material and an auxiliary material, the main material is a low density polyethylene resin, and the auxiliary material comprises a polystyrene resin, a cross-linking agent and an antioxidant. Compared withthe common cross-linked polyethylene, the high voltage direct current cable insulating material of the invention has the following characteristics that the direct current breakdown field strength isincreased within the temperature range of 30-90 DEG C, the direct current breakdown field strength is improved by 72.9% at the temperature of 70 DEG C, and the direct current breakdown field strengthis improved by 43.7% at the temperature of 90 DEG C.

The invention discloses a setting agent used after wool stretch and refinement. The setting agent is characterized by comprising, by weight parts, 3-12 parts of trimethylolmelamine, 0.09-0.8 part of boron fluoride, 1.2-2 parts of vinyl chloride-vinyl acetate resin, 4-8 parts of butanone, 6-12 parts of dicumyl peroxide, 4-6 parts of polystyrene foam plastics and 100-120 parts of water. According tothe setting agent, wool which is stretched and refined can be quickly oxidized, and the goal of quick forming is achieved.

The invention discloses a preparation method of a resin based fiber reinforced composite. The resin based fiber reinforced composite is prepared from polystyrene, polyphenyl ether, wollastonite powder, reinforced fibers, flexibilizer, a foaming agent, polydimethylsiloxane, a silane coupling agent, a curing agent and antioxygen, and the resin based fiber reinforced composite is obtained through the processes of high temperature melting, laying reinforced fibers, pressing or squeezing with a double-roller press and the like. The preparation method has the advantages that the composite can be used for a safe box, a safe case or a high-end trunk; the flame retardant and heat preservation performance is further achieved, high toughness and tensile property are achieved, and the resin based fiber reinforced composite is simple in process and easy to manufacture.

The invention provides graphene oxide composite microspheres, a preparation method thereof and application of the graphene oxide composite microspheres in bisphenol compound detection, and belongs to the technical field of environment detection. Graphene oxide/polystyrene core-shell composite microspheres are prepared by adopting a layer-by-layer self-assembly technology to serve as an adsorption material, and then bisphenol compounds in a water body are adsorbed and desorbed. The application comprises the steps of: filtering a water body containing bisphenol pollutants, and removing suspended matters in the water body; adsorbing the obtained filtrate through the adsorption material at room temperature; and finally, detecting the content of the bisphenol compounds by using a liquid chromatography-tandem mass spectrometry technology. After adsorption is carried out for a certain time and saturation is achieved, adsorption is stopped, an organic solvent is used for desorption, and the content of bisphenol compounds is detected. The adsorption material after desorption can be repeatedly recycled, so that the adsorption material has good practical application value.

The invention provides a data link multi-product open-loop parallel test method, device and system, and belongs to the technical field of mechanical design. The device comprises a transceiving antenna isolation box and a transmitting antenna, the transmitting antenna is located in the aircraft, supporting rods and rollers are arranged at the bottom of the transceiving antenna isolation box, polystyrene wave-absorbing materials are laid on the inner wall of the transceiving antenna isolation box, a receiving antenna is installed on one side in the transceiving antenna isolation box, transmitting antenna connecting holes are formed in one side, and conductive sealing rings are installed on the two sides. The device can be pushed to a test area, the height of the supporting rod is adjusted to be flush with a transmitting antenna, the transmitting antenna is sealed in a transmitting and receiving antenna isolation box, a receiving antenna and an adjustable attenuator are connected through a high-frequency feeder line, and data chain multi-product open-loop parallel test is achieved.

The invention provides a formula of a thermal insulation board special for a refrigeration house. The formula comprises polystyrene foam particles, dispersible latex powder, natural latex, a flame retardant, a foaming agent, a foam stabilizer, nano silicon dioxide, calcium hydroxide, a plasticizer, mica powder, a film-forming agent and color masterbatch. The formula is prepared from the followingraw materials in parts by weight: 1000kg of the polystyrene foam particles, 8-12 kg of the dispersible latex powder, 8-12 kg of the natural latex, 18-22 kg of the flame retardant, 6-8 kg of the foaming agent, 16-20 kg of the foam stabilizer, 10-22 kg of the nano silicon dioxide, 20 kg of the calcium hydroxide, 4-6 kg of the plasticizer, 45-55 kg of the mica powder, 60-70 kg of the film-forming agent and 3 kg of the color masterbatch. The nano silicon dioxide is added in the foaming process, so that the micropore amount is increased, foam holes are closely formed in the surface, the heat conductivity coefficient is reduced, and the fireproof function of the insulation board is improved.