31 results about "Polycarbonate" patented technology

A luminescent solar collector is provided comprising a substrate and a light energy converter, such as a photocell, operatively connected thereto. The substrate is molded from a thermoplastic composition comprising a polymer and a fluorescent dye or quantum dot dispersed therein. The polymer comprises a polycarbonate unit and a polyester unit derived from the reaction of isophthalic acid, terephthalic acid, and resorcinol (ITR). In further embodiments, the substrate comprises two or more layers including a fluorescent layer and an overcoat layer. The fluorescent layer comprises the fluorescent dye or quantum dot and a polycarbonate polymer. The overcoat layer comprises the ITR unit. The substrate, in single layer or multiple layer form, has reduced haze levels over a prolonged period of time.

A flame retarded resin molding composition with weatherable properties comprises a polyester and polycarbonate blend modified with an organopolysiloxane polycarbonate and an acrylic impact modifier for enhancing weatherablity.

Multi-layer composites having a blend of a dimethyl bisphenol cyclohexane polycarbonate and a bisphenol A polycarbonate as a top layer joined to a bisphenol-A polycarbonate second layer provide both surface scratch resistance and the ability to form molded and die cut articles. In the top layer, repeat units of dimethyl bisphenol cyclohexane are present in an amount of at least 50 weight percent relative of the total repeat units in the top layer, preferably in a weight ratio of from 60 to 75 weight percent.

The invention provides an efficiency anti-static PC/ABS (Polycarbonate/Acrylonitrile Butadiene Styrene) composite material and a preparation method thereof. The composite material is prepared from the following components in percentage by weight: 40-70 percent of polycarbonate, 5-40 percent of ABS, 0.5-10 percent of antistatic agent, 0.5-5 percent of compatilizer and 5-25 percent of dispersing agent. The preparation method comprises the following steps: firstly, mixing the antistatic agent, the compatilizer and the dispersing agent in the raw materials according to a certain proportion at the room temperature; performing melt extrusion through double screws to obtain antistatic master batch; extruding the composite material according to a certain proportion, extruding through the double screws, and granulating to obtain the efficient anti-static PC/ABS composite material. The composite material prepared by the method has superior antistatic performance, high chemical performance and attractive appearance.

The invention discloses a preparation method of a waterborne polyurethane emulsion and the waterborne polyurethane emulsion prepared by the preparation method. The preparation method comprises the following steps: (1) synthesizing a polyurethane prepolymer: mixing and dehydrating polypropylene oxide polyether glycol and polycarbonate diol, dropwise adding toluene diisocynate after dehydrating for heat-preserving reaction, and finally dropwise adding prepared mixed solution of dihydroxybutyric acid, 1, 4-butanediol and acetone for heat-preserving reaction to finally prepare the prepolymer; (2) adding aminoalkyl silicon oil, an inner crosslinking agent and hydroxy-propyl acrylate to modify; (3) neutralizing to salify: dropwise adding an acetone solution of a neutralizer triethylamine into the modified prepolymer prepared in the step (2) for reaction so as to prepare a polyurethane salified solution; and (4) dissolving disulfamate and a diamido chain extender in water, quickly adding to the polyurethane salified solution which is stirred at a high speed, quickly dispersing and extending chains, and heating the emulsion to remove the solvent through evaporation to obtain the waterborne polyurethane emulsion.

The invention discloses a method of separating chiral drug penicillamine enantiomer based on a functional gold nanochannel. The method comprises the steps of by taking a polycarbonate (PC) film as a template, adopting a chemical deposition method to prepare a gold (Au) nanochannel film, and modifying L-cysteine (L-Cys) in the Au nanochannel by utilizing action of an Au-S bond to obtain the nanochannel with chiral site selectivity. The modifier L-cysteine has selective adsorption effect on D- penicillamine (D-Pen), but has repulsive action on L-penicillamine (L-Pen); in mixed liquor containing D-pen and L-Pen, the L-penicillamine can preferably passes through the nanochannel which is modified with the L- cysteine, so that complete separation of the penicillamine enantiomer is realized by utilizing the property. The method disclosed by the invention can be used for separating the penicillamine enantiomer, adopts a simple device, is simple to operate and easy to implement, and has better application prospect.

The invention discloses a surface treatment process for a lithium metal anode. The treatment process is characterized in comprising the following steps of preparing a protective layer liquid cement under dry room conditions, taking 50 to 90 parts by mass of polycarbonate, adding 5 to 10 parts by mass of polyethylene oxide to mechanically stir evenly, then adding 5 to 30 parts by mass of lithium salt to stir evenly, adding 5 to 40 parts by mass of fast ion conductor to stir evenly, adding 0.2 to 1 part by mass of vinylene carbonate to mechanically stir evenly, and then adding 0.2 to 1 part by mass of lithium oxalate borate. After the liquid cement is mechanically stirred evenly, the well-cut lithium piece is immersed in the liquid cement for 3 to 10 seconds, and pulled out to stand for 5 to10 seconds, and then flatted, and the lithium metal anode having a surface-coated protective layer is obtained.

The invention discloses a high-toughness halogen-free flame-retardant PC/ABS (polycarbonate/acrylonitrile-butadiene-styrene) alloy reflecting material which comprises the following components in percentage by weight: 50-70% of PC resin, 5-10% of ABS resin, 2-3% of self-made compatilizer, 10-30% of titanium white, 0.2-0.5% of halogen-free flame retardant 1, 0.2-1% of halogen-free flame retardant 2, 0.2-0.3% of anti-dripping agent, 0.2-0.5% of antioxidant and 0.4-0.8% of processing assistant. The preparation method comprises the following steps: weighing the components in percentage by weight, mixing in a high-speed mixer for 2-3 minutes, discharging, and carrying out extrusion granulation on a double screw extruder, wherein the processing temperature is 220-260 DEG C, and the rotation speed of the screw is 380-420 rpm. The method improves the processibility, stress cracking resistance and solvent resistance of the PC. The two halogen-free flame retardant are compounded, so that the reflecting material can be more widely applied to manufacturing of reflecting cups and various other illumination reflecting products, and reflecting panels.

The invention discloses a high-impact flame-retardant reinforced PC/ABS alloy material and a preparation method thereof. The PC/ABS alloy material comprises the following components in parts by mass:42.8-68.9 parts of polycarbonate, 20 to 30 parts of ABS, 10 to 20 parts of a glass fiber filler, 0.3 to 0.8 part of a coupling agent, 3.0 to 7.0 parts of a toughening agent, 0.2 to 1.0 part of a flameretardant, 0.1 to 0.5 part of an anti-dripping agent, 0.4 to 1.0 part of an antioxidant, and 0.2-1.0 part of a lubricant. The glass fiber reinforced PC/ABS alloy material has the advantages that theprepared glass fiber reinforced PC/ABS alloy material has the characteristics of high impact resistance and high flame retardancy, meets the requirements of materials in the electronic and electric appliance industry, can improve the mechanical strength of parts, and also can achieve the effects of high impact resistance and high flame retardancy; compared with traditional glass fiber reinforced polycarbonate, the high-impact flame-retardant reinforced PC/ABS alloy material can achieve more ideal rigidity and toughness balance, and has the advantages of simple preparation process, lower cost and easiness in large-scale industrial production.

The invention belongs to the technical field of plastic and discloses a shell plastic for computer display screens and a preparation method of the shell plastic. The shell plastic is prepared from, by weight, 35-40 parts of acrylonitrile-butadiene-styrene copolymer, 15-20 parts of polycarbonate, 8-10 parts of polyvinyl chloride, 6-8 parts of polytetrafluoroethylene, 3-5 parts of chlorinated polyethylene, 5-7 parts of silicon rubber, 3-5 parts of polybismaleimide, 5-8 parts of 2-hydroxy-4-octoxydiphenyl ketone, 4-6 parts of molybdenum disulfide, 8-12 parts of red phosphorus, 7-9 parts of melamine polyphosphate, 16-18 parts of calcium carbonate, 10-13 parts of magnesium hydroxide, 7-11 parts of a plasticizer, 2-4 parts of a lubricant, 1-2 parts of a stabilizer and 2-4 parts of an antistatic agent. The shell plastic is simple in preparation, excellent in physical performance and great in fire resistance and high temperature resistance.

The invention discloses a high-temperature-resisting and high-strength lamp cover material composition. The composition is prepared from the following components in parts by mass: 60 to 80 parts of polycarbonate, 4 to 9 parts of polypropylene, 15 to 20 parts of polymethyl methacrylate, 2 to 5 parts of flame retardant, 0.4 to 0.8 part of antioxidant, 0.1 to 0.5 part of stabilizing agent, 1 to 3 parts of compatilizer and 0.2 to 0.5 part of lubricant. According to the high-temperature-resisting and high-strength lamp cover material composition disclosed by the invention, the material is used as alamp cover and has very high light transmittance; the material has high strength and is not easy to break so that the service life of a lamp is greatly prolonged; meanwhile, the potential safety hazards are also reduced; especially, the material has high temperature resistance and can be applied to lamps which are illuminated by heating, and the material is not fused or ignited.

The invention discloses a polyester alloy composition for improving high-temperature welding performance and application thereof, and relates to the technical field of high polymer materials, the polyester alloy composition is prepared from the following components by weight: 5-30 parts of polyarylester, 30-70 parts of polycarbonate, 10-30 parts of a styrene-butadiene-acrylonitrile copolymer, 2-6 parts of a flexibilizer, and 0.5-2 parts of a heat stabilizer. 1-2 parts of a coloring agent, 0.4-1 part of an antioxidant, 0.2-0.5 part of a lubricant and 0.1-0.5 part of an ester exchange inhibitor. The polyester alloy composition for improving the high-temperature welding performance provided by the invention has the characteristics of high temperature resistance, high welding strength and stable size; therefore, the alloy material is particularly suitable for being applied to the field with the requirements for high strength and high size precision of hot plate welding, for example, the hot plate welding of main and auxiliary instrument panel bodies and side plates of automobiles has a good application effect.

The invention discloses a PMMA/PC-based high-performance polaroid, which consists of a base film, and a protective layer, a haze adjusting layer, a light-transmitting electrode layer and a functional layer which are sequentially stacked on one side of the base film, the base film is prepared from the following raw materials in parts by weight: 100-120 parts of PMMA (Polymethyl Methacrylate) resin, 80-100 parts of PC (Polycarbonate) resin, 5-10 parts of glass fiber, 10-20 parts of PVC (Polyvinyl Chloride) resin, 0.5-0.8 part of a toughening agent, 0.1-0.3 part of a dispersing agent and 0.1-0.3 part of a flatting agent. The PMMA and PC materials are selected to replace TAC materials, the production cost of the polaroid is greatly reduced, and the round polaroid which is high in performance, capable of being reeled to reeled, full in manufacturing process and wide in viewing angle is obtained from the aspects of design, regulation and control of a polaroid base film raw material formula.

The purpose of the present invention is to provide molded foam which renders severer weight reduction, better surface properties, and rib designs possible when molding thin-wall objects for electricalappliances including cellphones and personal computer housings or as vehicular members including automotive fenders, door panels, backdoor panels, garnishes, pillars, and spoilers. The injection-molded foam of the present invention is formed from a resin composition comprising: (A) a polycarbonate resin; (B) a thermoplastic polyester resin; (C) a polyester/polyether copolymer; and (D) a blowing agent. The injection-molded foam has surface roughness which satisfies 0.1 Mum <(arithmetic average roughness, Ra)<9 Mum, 1 Mum<(maximum height, Ry)<90 Mum, and 1 Mum<(10-point average roughness, Rz)<70 Mum.

The low-smoke low-heat-release intrinsic flame-retardant polycarbonate is composed of structural units represented by I, II and III, the structural unit of II accounts for 1-99% of the mole number of the structural unit of [I], and [III] accounts for 0.5-20 wt% of the mass of [I + II]; the number-average molecular weight of the copolycarbonate is 12000-20000, the limit oxygen index of the copolycarbonate is 30.0-55.0%, and the vertical combustion grade of the copolycarbonate is V-0 grade; in the cone calorimetry test process, the peak heat release rate is 40%-90% lower than that of pure PC, and the total smoke release amount is 10%-90% lower than that of pure PC. The invention further discloses a preparation method of the copolycarbonate, the copolycarbonate has a good smoke heat release inhibiting effect and high char forming property, molten drops can be effectively inhibited, smoke heat release can be effectively reduced, the preparation process is environmentally friendly, and the obtained polymer has good injection molding processability, can be subjected to industrial production and is suitable for industrial production. And the flame retardant can also be used as a macromolecular flame retardant to be added into a polymer to realize flame retardance.

The invention provides an insulated rotary anti-bird device. The device comprises a mounting base and an anti-bird mechanism rotationally connected to the mounting base, wherein the anti-bird mechanism is provided with a wind power driving mechanism; the anti-bird mechanism comprises a disc seat and a plurality of multi-color insulated bird thorns hinged to the disc seat; and the disc seat is provided with an opening and closing driving part for driving the multi-color insulated bird thorns to be opened and closed. By arranging the opening and closing driving part, the multi-color insulated bird thorns of the device can be folded and put into a customized packaging box, so that the device is convenient to store and carry; the multi-color insulated bird thorns adopt colors feared by birds,such as fire red and yellow, so that the bird repelling effect is improved; the bird thorns are made from polycarbonate materials, so that insulation is achieved, electrical circuit dangers are prevented, the hardness of the sharp thorns is guaranteed; and the anti-bird mechanism is driven by the wind power driving mechanism to rotate, so that the better bird repelling effect is achieved.

A substrate has a substrate member, which is made of Polymethyl methacrylate (PMMA) or Polycarbonate (PC), having a first side and a second side. On the fist side and the second side of the substrate member provided with an insulating layers respectively, wherein the insulating layers are made of Cyclic Olefins Polymer (COP). The water absorption of COP is less than the water absorption of PMMA and PC to prevent the substrate member from warping while the substrate is heated at a single side.

The invention discloses a pipeline with noise reduction and thermal insulation. The pipeline comprises a pipeline body (1) and is characterized in that a hollow protective layer (2), a reinforced polyethylene layer (3) and an outer sheath (4) are sequentially arranged outside the pipeline line body (1) from inside to outside, and the hollow protective layer (2) is formed to be in a hollow shape by processing polycarbonate or polyethylene. By the structure provided by the invention, the leakproofness and thermal insulation of a primary pipeline can be greatly improved by the cooperation of the hollow protective layer, the reinforced polyethylene layer and the outer sheath, especially, the good noise reduction and thermal insulation effects can be realized when the pipeline is transported; however, the more remarkable rigidity can be provided for the pipeline by reinforcing the polyethylene layer, and the service life of the pipeline can be prolonged.

The invention discloses a high-toughness and high-fluidity PC (polycarbonate) composition as well as a preparation method and application thereof. The high-toughness and high-fluidity PC composition is prepared from the following components in parts by weight: 100 parts of PC, 25 to 50 parts of GPPS, 25 to 50 parts of SBC, 2 to 10 parts of compatilizer and 0 to 2 parts of other auxiliary agents, the mass ratio of the styrene comonomer to the butadiene comonomer in the SBC is (1.5-2.5): 1. The PC resin matrix, the SBC resin matrix and the GPPS resin matrix are blended, a formed ternary alloy system has good transparency, and low visible light transmittance and high infrared light transmittance can be achieved after the organic toner is added; and the introduction of the SBC effectively improves the compatibility among the system components and the toughness of the PC composition, so that the PC composition has good processability and toughness.

A thermoplastic resin composition and a molded article formed of the same includes: about 100 parts by weight of a polycarbonate resin; about 1 to about 20 parts by weight of a rubber modified aromatic vinyl copolymer resin; about 0.1 to about 2 parts by weight of a maleic anhydride modified olefin copolymer; and about 0.1 to about 2 parts by weight of a phosphite compound represented by Formula 1 as described in the present specification. The thermoplastic resin composition can have good properties in terms of chemical resistance, impact resistance, and balance therebetween.

The invention discloses a production process of a wear-resistant PC (polycarbonate) board, which uses a production device of the wear-resistant PC board, and the production device of the wear-resistant PC board comprises a supporting structure, a conveying structure and a flattening structure, when the production device for the wear-resistant PC boards is adopted for producing the PC boards, the specific process is as follows: the PC boards to be flattened sequentially slide to the workbench from the rectangular frame body, meanwhile, the driving motor is controlled to enable the belt to rotate, and the PC boards intermittently falling to the workbench can be smoothly conveyed through the push block on the outer side wall of the belt; the PC plate can smoothly pass through the space between the multiple pressing rollers and the supporting rollers through the push blocks, and the height of the pressing rollers can be adjusted by adjusting the using height of the movable plate. According to the PC board flattening device, uninterrupted work of PC board flattening operation can be achieved, the stability of the PC board can be guaranteed in the PC board conveying process, the deviation condition is avoided, and the quality of the flattening operation is improved.

The invention relates to a high-strength impeller. The high-strength impeller is made of the following raw materials in percentage by mass: 20-25 percent of pitch fiber, 10-15 percent of polyethylene-acid-formaldehyde fiber, 10-15 percent of polyethylene terephthalate fiber, 10-15 percent of polyamide fiber, 10-15 percent of glass fiber and 20-30 percent of polycarbonate. Since the high-strength impeller disclosed by the invention is made of various materials through mixing, the overall weight is light, the strength is high, the demand of water pumps for impellers can be satisfied and the service life is long.