64results about How to "Retain physical properties" patented technology

The invention discloses a variational method-based method for reducing stripe noise of a moderate-resolution imaging spectroradiometer (MODIS). The method comprises the following steps that: data separation is carried out on MODIS data according to a resolution; obtained detector subimages are divided into two categories: subimages not containing stripe noises or containing unobvious stripe noises belong to one category and subimages containing obvious stripe noises belong to the other category; stripe noise removal is carried out on the subimages containing obvious stripe noises by utilizinga variational method; and at last, combination is carried out on all the detector subimages that have been processed by the stripe noise removal and the subimages that do not contain the stripe noises according to a number sequence so as to obtain images after stripe noise removal. According to the invention, it can be realized that noises of stripes between detectors and a random noise stripe ofan MODIS can be removed simultaneously, so that a condition that one stripe noise is enhanced when the other kind of stripe noise is removed can be avoided; moreover, a stripe noise influence is effectively solved and simultaneously, physical characteristics of original data are reserved to the greatest extent.

The invention relates to a composition comprising a modified, random copolyetherester containing a modified, random polybutylene terephthalate copolymer block that is derived from a polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers and combinations thereof, and contains at least one residue derived from the polyethylene terephthalate component; and a polyalkylene oxide copolymer block that is derived from a polyethylene terephthalate component and polyalkylene oxide glycol, and contains polyalkylene oxide and at least one residue derived from the polyethylene terephthalate component. Advantageously, the composition has a modulus of elasticity that is at least 80%, as compared to the modulus of elasticity of a copolyetherester derived from (1) polybutylene terephthalate derived from a monomer component selected from the group consisting of terephthalic acid, isophthalic acid, alkyl esters of terephthalic acid, hydroalkyl esters of terephthalic acid, alkyl esters of isophthalic acid, 1,4-butanediol, (2) polyalkylene oxide glycol, and (3) combinations thereof. The invention also relates to articles made from the composition, methods of making the composition. The invention also relates to copolyetherester containing: a modified, random polytrimethylene terephthalate copolymer blocks, articles made from the compositions, and methods for making such materials.

The invention discloses a halogen-free flame retardant glass fiber reinforced polyphenyl ether/polystyrene composition and a preparation method thereof. According to the composition, microcapsule-wrapped red phosphorus master batch is compounded with a flame retardant synergist to maintain the reinforcement and toughening effects of an alkali-free glass fiber to a polyphenyl ether and polystyrene composition, and the weight ratio of the microcapsule-wrapped red phosphorus master batch to the flame retardant synergist is (4-6) to (6-3). The halogen-free flame retardant glass fiber reinforced polyphenyl ether/polystyrene composition disclosed by the invention is high in strength, good in toughness; a flame retardant is environment-friendly, free of halogen, small in addition amount, high in flowability, smooth in surface, good in forming and processing property, low in cost and relatively good in practical applicability, and the flame retarding grade (2mm) is of Fv-0.

The invention provides an all-biodegradable modified polylactic acid film-blowing resin and a preparation method thereof. The modified polylactic acid film-blowing resin comprises 20-60% of polylactic acid, 20-45% of polyadipic acid/butylene terephthalate, 12-20% of polypropylene carbonate resin, 3-5% of talcum powder, 1-2% of ethylene-acrylic acid copolymer, 1.5-3% of chain extender, 0.5-1% of erucyl amide, 0.5-1% of zinc stearate, 0.5-1% of melt strength enhancer, 0.5-1% of hydrolysis-resistant stabilizer and 0.5-1% of PE (polyethylene) wax. The film product prepared from the resin is stable at normal temperature, and has the biodegradability of at least 92% within 90 days under the condition of forced composting, thereby completely satisfying the requirements in relevant standards, The physical properties are greatly maintained, and the cost is lower than that of like products. The resin can be widely used in the fields of film packaging, agricultural mulching films, refuse classification landfilling and composting, and the like.

Solid laminated wood of a novel structure is composed of first square battens of a novel structure and second square battens of a novel structure. The two kinds of square battens are consistent in shape and structure, wherein a tenon is arranged on the middle portion of the top of each batten in the chordwise direction, side mortises are arranged on the two sides of the tenon on the top of each batten in the chordwise direction, a mortise groove is formed in the middle portion of the bottom of each batten in the chordwise direction, side tenons are arranged on the two sides of the mortise groove in the bottom of each batten in the chordwise direction, and the first square battens of the novel structure are twice as long as the second square battens of the novel structure. When the two kinds of square battens are combined into the laminated wood, the second square battens and the first square battens are spliced in a crossing mode in the shape of three stacked squares so that the tenons and the mortise grooves of the two kinds of battens can be combined and the side mortises and the side tenons of the two kinds of battens can be combined to form a tenon and mortise inlaid structure. In the splicing process, the two kinds of battens are adjusted to be arranged and spliced in the cross mode according to the required wood length so as to form a piece of laminated wood with any length and width; due to the fact that the battens are firmly sleeved with one another as a whole, the formed laminated wood is accordingly stable and firm, and a new type of laminated wood is added for artificial boards.

In a press fabric for a pulp machine having a multilayer structure, which fabric is woven using, as a warp, a monofilament as a warp and, as wefts, a yarn obtained by bundling raw yarns of a small diameter and forming a fine water sucking space therebetween and a monofilament, at least an upper surface side weft and a lower surface side weft are arranged vertically as the wefts; the yarns forming a fine water-sucking space and monofilament are used as wefts constituting the lower side layer; they are arranged at a ratio of 2:2 or 1:2; and two monofilaments are arranged adjacent to each other as the lower surface side wefts, whereby the press fabric can maintain its dewatering channel for discharging water to the back surface side from the initial stage to the final stage of use.

The invention relates to a preparation method for automobile seat sponge and belongs to the technical field of decorative materials. According to the preparation method, silicon hydrogen condensationreaction is utilized to prepare silicone rubber foam; methyl hydrogen silicone oil diffuses from internal water phase to external water phase till reaching an interface of oil phase and external waterphase and absorbs liquid silicone rubber on the interface; hydrosilylation and condensation reaction are performed under the action of platinum catalyst, so that the methyl hydrogen silicone oil is deposited on the interface, the coating of ethylene-propylene-diene monomer is finished and a microcapsule is formed; a silicone rubber main chain is formed through the alternative linking of Si-O-Si bonds; due to a special skeleton structure, and under the action of platinum catalyst, cross-linking reaction occurs between vinyl silicone oil and hydrogen-containing silicon oil, foaming gas hydrogenis generated by hydroxyl silicone oil and hydrogen-containing silicon oil so as to perform foaming reaction, polyethylene glycol is added, and hydroxide radicals in polyethylene glycol react with hydrogen-containing silicon oil, so as to form a silicone rubber foam material. According to the preparation method provided by the invention, the unique physical properties of silicone rubber are kept and the automobile seat sponge has the advantages of light weight, heat insulation, flexibility, rebound resilience, and the like.

The invention provides a method for modifying the surface of an SEBS material with an efficient bactericidal polymer and the modified SEBS material, and the modification method comprises the followingsteps: (1) surface pretreatment of a substrate material: mixing the substrate material SEBS with a clean surface with a photoinitiator, and fixing the photoinitiator to the surface of the substrate material; and (2) initiating polymerization: under the condition of ultraviolet light, dripping 8-15wt% of a peptide antibacterial polymer solution on the surface of the substrate material obtained inthe step (1), and then irradiating for 8-15min under the ultraviolet light to obtain the product. According to the invention, the peptide antibacterial polymer is modified on the surface of the SEBS material, so that the SEBS material has the advantages of efficient killing of gram-negative and gram-positive bacteria and no obvious hemolysis and cytotoxicity.

The invention discloses superfine suede fiber leather and a preparation method thereof. The method comprises the following steps: setting a superfine suede fiber base blank; forming a high solid printed layer with set patterns on the superfine suede fiber base blank in accordance with the set patterns; carrying out adhesion transfer membrane treatment on the high solid printed layer; and peeling after being cooled down so as to obtain the superfine suede fiber leather, wherein the solid content of polyurethane resin size used for forming the high solid printed layer is 42-50 percent, and the viscosity is 3,000 pa.s to 6,000 pa.s. By adopting the polyurethane resin size with such viscosity and solid content as the high solid printing size, the high solid printed layer obtained from the printing sufficiently warps the villus of the superfine suede fiber, so that better caking property is maintained, and the superfine suede fiber with good abrasion resistance, tearing and peeling strength is obtained; and meanwhile the physical property of the superfine suede fiber self is reserved with rich color gradation, and the color and the suede feeling have diversity in different angles.

An integrated solid wood panel of an embedded structure is composed of first square strips and second square strips. The shape structures of the two types of square strips are consistent, wherein an arc-shaped tenon is arranged on the chordwise top of each wood strip, an arc-shaped mortise is arranged at the chordwise bottom of each wood strip, but the length of the first square strips must be inconsistent with the second square strips. When the integrated panel is formed by combining the two types of square strips, the second square strips and the first square strips are spliced in a staggered and intersected mode, the arc-shaped tenons and the arc-shaped mortises of the two types of wood strips are matched, the tenon-mortise embedded structure is formed, the two types of wood strips are adjusted to be arranged and spliced in the intersected mode according to the required panel length in the splicing process to form an integrated panel of any length and any width, the integrated panel is relatively stable and firm due to the fact that the whole wood strips are firmly sleeved with one another, and the novel integrated panel is added to artificial boards. The arc-shaped tenons and the arc-shaped mortises are simple in structure and easy to manufacture, the wood strips are quite conveniently spliced, and therefore the work efficiency in the integrated panel manufacturing process is quite high.

The present invention relates to a hot melt adhesive composition for bookbinding, which specifically includes polyol, methylene diphenyl isocyanate, a thermoplastic rubber, an adhesive resin, a plasticizer, an antifoamer, an antioxidation agent, and an ultraviolet stabilizer. The hot melt adhesive composition for bookbinding consisting of the component has excellent temperature resistance to maintain the properties even at the low temperature, and has excellent wear resistance, impact resistance, and flexibility to allow a bound book to be opened in 360° without separation of the binding. Also, the composition has high solidifying speed to have an effect of not smearing a bookbinder during a bookbinding process.

The invention relates to a waterborne polyurethane resin for a toluene reduced ultrafine fiber base and a preparation method and application of the waterborne polyurethane resin. The waterborne polyurethane resin is prepared by the following methods: performing a stirring reaction on polyester polyol, polyether polyol and diisocyanate at a temperature of 65-95 DEG C for 1-3 hours, successively adding a glycol type chain extension agent and a carboxylic acid type hydrophilic chain extender, and performing a chain extension reaction respectively so as to obtain a prepolymer; and cooling the prepolymer to a temperature less than or equal to 60 DEG C, adding a low boiling point solvent, performing uniform stirring, adding a neutralizing reagent, performing stirring for 0.5-2 hours, performingcooling to a temperature less than or equal to 40 DEG C, adding water, performing emulsion, after emulsion is completed, firstly adding a hydrophilic chain extender and a diamine type chain extender,performing chain extension respectively, after the operation, increasing the temperature greater than or equal to 70 DEG C, performing vacuum desorption of the solvent, and performing cooling and discharge, so as to obtain the waterborne polyurethane resin. The resin is used in preparation of the toluene reduced ultrafine fiber base, and the obtained base is high in bass thickness retention rate,soft and plump in hand feel, good in elasticity, high in tensile strength and good in tear resistance.

The invention discloses an infrared and visible light image fusion method and system and a medium, and the method comprises the steps: respectively inputting an infrared image Ia and a visible light image Ib into a depth feature extraction network D to obtain an infrared up-sampling feature map Da and a visible light up-sampling feature map Db, and splicing the infrared up-sampling feature map Da and the visible light up-sampling feature map Db to obtain a fusion image; respectively inputting the infrared image Ia and the visible light image Ib into a depth feature extraction network D to extract image features of various scales, generating a weight through a mask up-sampling network Umask, and performing weighted summation on a reconstructed image generated through a feature up-sampling network Uoriin to obtain fusion layers of various scales; and inputting the fused image into the feature up-sampling network Uorin, and fusing the fused image with the fusion layers of various scales to obtain a final fused image. The image generated by the method has the advantages of being good in visualization effect, obvious in texture information, high in feature extraction capability, high in structure retention degree, free of obvious artifacts, high in universality and the like.

The present invention provides a non-halogen-based flame retardant composition and flame retardant resin composition wherein a small amount of addition achieves an excellent flame retardancy, an amount of elution of a flame retardant from the thermoplastic resin is extremely small even under high temperature and high humidity, and it has water-resistant property. A phosphate ester amide compound of general formula (I), a nitrogen-containing compound having a 1,3,5-triazine structure or 1,3,5-triazine fused ring structure, and optionally, a metal oxide or metal salt are used together. Further optionally, a dripping inhibitor is blended.

wherein, R₁, R₂, R₃ and R₄ are each independently hydrogen or C_1-3 alkyl, R₁₁, R₁₂, R₁₃ and R₁₄ are each independently C_1-3 alkylene, R₁₅ is C_1-6 alkylene, and R₅ and R₆ are each independently hydrogen or C_1-6 alkyl.

An organic phosphorus-based compound which satisfies the following requirements (i) to (viii) and is represented by the following formula (1): (i) the organic purity should be not lower than 98%; (ii) the solubility in 20° C. water should be not higher than 0.1 g/100 g of water; (iii) the total halogen component content should be not higher than 1,000 ppm; (iv) the total volatile organic matter content should be not higher than 800 ppm; (v) the Δ pH value should be not larger than 1.0; (vi) the volume standard median diameter should be not larger than 30 μm; (vii) the maximum particle diameter should be not larger than 200 μm; and (viii) the standard deviation represented by the following formula should be not larger than 20 μm. Standard deviation=(d84%+d16%)/2; wherein d84%: particle diameter at a point where the cumulative curve becomes 84% (μm), and d16%: particle diameter at a point where the cumulative curve becomes 16% (μm).

In the above formula, R² and R⁵ may be the same or different and are each a phenyl group which may have a substituent, naphthyl group which may have a substituent, anthryl group which may have a substituent, or branched or linear alkyl group having 1 to 4 carbon atoms which may have an aromatic substituent. R¹, R³, R⁴ and R⁶ may be the same or different and are each a hydrogen atom, branched or linear alkyl group having 1 to 4 carbon atoms, phenyl group which may have a substituent, naphthyl group which may have a substituent, or anthryl group which may have a substituent.

A new type of solid wood board directly pasted with melamine impregnated film paper is based on a new structure of solid wood laminated wood. Paste melamine-impregnated film paper directly on the surface of the new solid wood board with stable structure. In the present invention, the thin veneer is horizontally pasted on the front and back sides of the solid wood composite board, which enhances the overall bonding force of the solid wood composite board and maintains the excellent performance of the solid wood composite board, even in environments with large dry-humidity and temperature differences. , Solid wood integrated panels are not prone to shrinkage and cracking. The formed board not only has wear-resistant, dry and wet resistance, corrosion resistance and good decorative properties on the surface; moreover, it maintains the excellent performance of solid wood integrated boards, and overcomes the drying and shrinkage of traditional integrated boards due to changes in physical environment factors in practical applications. Expansion, cold shrinkage and heat expansion, easy cracking and warping deformation.

The invention relates to a technological method for powder metallurgy rolling of a molybdenum sheet. The technological method comprises the following steps of: preparing molybdenum powder, blending, pressing a molybdenum sheet blank, sintering, rolling, turning the excircle, polishing, carrying out chemical treatment, and obtaining the finished product. The rolling technology is adopted in production technology. The technological method has the characteristics of not only retaining the physical properties of the stamped molybdenum sheet, and but also overcoming the defect of the relatively poor physical properties of the forging technology, improves the strength of the molybdenum sheet, optimizes the performances of the molybdenum sheet, simplifies the existing technological process and increases the overall rate of the finished product to 70%.