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Preparation method of polysulfone with stable color and reduced yellowness
The invention discloses a preparation method of polysulfone with stable color and reduced yellowness, which comprises the following steps: by using N-methyl pyrrolidone as a reaction solvent, reacting bisphenol A with 4, 4 '-dichlorodiphenyl sulfone in the presence of an acid-binding agent to generate polysulfone; wherein the N-methyl pyrrolidone contains N-methyl pyrrolidone peroxide, and the molar content of the N-methyl pyrrolidone peroxide in the N-methyl pyrrolidone is less than or equal to 0.05%. The polysulfone with stable color and reduced yellowness value can be synthesized by controlling the content of peroxide impurities in the N-methyl pyrrolidone.
Owner:WANHUA CHEM GRP CO LTD
Anti-tarnishing rubber composition for colored tire and preparation method thereof
ActiveCN119264528AExcellent heat and oxygen aging resistanceEasy to stretchSpecial tyresPolymer scienceStearic acid
The invention relates to the technical field of colored tire rubber, and particularly discloses an anti-tarnishing rubber composition for a colored tire and a preparation method of the anti-tarnishing rubber composition. According to the anti-discoloration rubber composition for the colored tire, the modified colored white carbon black is firstly prepared, then the solution polymerized styrene-butadiene rubber, the natural rubber and the ethylene propylene diene monomer are used as rubber matrixes, and the modified colored white carbon black is added for coloring and reinforcing; and adding auxiliary agents such as polydicyclopentadiene resin, titanium dioxide, a YDH-151 silane coupling agent, zinc oxide, stearic acid, sulfur, a TBBS accelerator, protective wax, an AFS / LG anti-aging agent, an antistatic agent and the like to prepare the anti-tarnishing rubber composition for the colored tire. The anti-discoloration rubber composition for the colored tire has the advantages of being stable in color, resistant to aging, good in stretchability, high in wear resistance and high in weather resistance.
Owner:QINGDAO JERINA RUBBER TECH CO LTD
A halogen-free flame-retardant polyamide composite material and its preparation method and application
ActiveCN117363003BImprove flame retardant performanceImprove aging resistanceGlass fiberPolymer science
The present invention provides a halogen-free flame-retardant polyamide composite material and a preparation method and application thereof. The halogen-free flame-retardant polyamide composite material comprises the following components by mass: 25-60 parts of polyamide resin, 15-40 parts of DOPO compound-coated glass fiber, 12-30 parts of organic phosphinate flame retardant, 3-10 parts of synergistic flame retardant, and 1-3 parts of free radical scavenger. Through the design and synergistic effect of DOPO compound-coated glass fiber and free radical scavenger, and compounding with organic phosphinate flame retardant and synergistic flame retardant, the halogen-free flame-retardant polyamide composite material has high GWIT and excellent flame retardancy, and the aging resistance is significantly improved, so that it can maintain color stability under long-term light-oxidation aging conditions, and has excellent mechanical properties and moisture-heat resistance, which fully meets the performance requirements of industries such as electronic appliances, energy storage, and connectors.
Owner:KINGFA SCI & TECH CO LTD
Color fixative for colorful potatoes and color protection method for colorful potatoes
PendingCN119279130AGood color protectionimprove protectionClimate change adaptationFood ingredient functionsBrowningGallic acid ester
The invention discloses a color fixative for colorful potatoes and a color protection method for the colorful potatoes, and belongs to the technical field of deep processing of agricultural products. The color fixative used in the invention is composed of citric acid, ascorbic acid, L-cysteine, gallic acid and water, and the mass ratio of the citric acid to the ascorbic acid to the L-cysteine to the gallic acid to the water is (0.4-0.6): (0.4-0.6): (0.2-0.3): (0.6-1): 100. The preparation method comprises the following steps: peeling fresh flower-color potatoes, dicing, soaking in a color fixative for 40 minutes, pre-drying diced potatoes, freezing and thawing, drying with hot air, crushing and sieving to obtain raw whole flour; through the color protection treatment, enzymatic browning of the flower-color potatoes can be reduced, meanwhile, the color of the potatoes is reserved, and the stability of anthocyanin is improved.
Owner:JIANGNAN UNIV
Single-component low-viscosity high-weather-resistance surface spraying material as well as preparation method and application thereof
ActiveCN119307172AGood weather resistancegood compatibilityPolyurea/polyurethane coatingsPtru catalystPolyol
The invention belongs to the technical field of polyurethane surface spraying materials, and particularly relates to a single-component surface spraying material with low viscosity and high weather resistance as well as a preparation method and application thereof. The single-component low-viscosity high-weather-resistance surface spraying material is prepared from the following raw materials: polyether polyol, isocyanate, reactive pigment, filler, a dispersing agent, a catalyst, an ultraviolet light absorber and an antioxidant. The preparation method of the single-component low-viscosity high-weather-resistance surface spraying material comprises the following steps: adding the dispersing agent into the polyether polyol, uniformly stirring, adding the pigment and the filler, uniformly stirring, dehydrating, adding the isocyanate, the ultraviolet light absorber and the antioxidant, pre-polymerizing, cooling, and adding the catalyst to obtain the single-component low-viscosity high-weather-resistance surface spraying material. The single-component low-viscosity high-weather-resistance surface spraying material has the advantages of being environmentally friendly, low in viscosity, excellent in mechanical property and high in weather resistance, and when the single-component low-viscosity high-weather-resistance surface spraying material is applied to a runway surface spraying layer, construction is easy, the color is attractive, and color fading and fading are not likely to happen; the invention also provides a preparation method thereof.
Owner:SHANDONG INOV POLYURETHANE
A composite preparation process for enhancing the mechanical properties of marine laminated wood
ActiveCN118725596Bwell mixedImprove insulation performanceWood working apparatusDomestic articlesFirming agentAnti bacteria
The invention relates to the technical field of composite material preparation, and specifically discloses a composite preparation process for enhancing the mechanical properties of marine laminated wood. Wood powder, epoxy resin, antibacterial modified basalt fiber-titanium dioxide, a stabilizer and a curing agent are uniformly mixed, kneaded in an open mill, and hot-pressed in a hot press to obtain the marine laminated wood. The antibacterial modified basalt fiber-titanium dioxide contains a large number of active groups, which can form a three-dimensional staggered support network in a matrix, generate a cross-linked network structure, and effectively improve the mechanical properties of the matrix. The epoxy resin is used as an adhesive with strong bonding force, and can tightly bond the wood powder and other materials together, thereby reducing the waste of wood and improving the utilization rate of wood to achieve environmental benefits, forming a laminated wood with stable structure and high strength. Through a curing cross-linking reaction, a mesh structure can be formed, which further enhances the overall mechanical strength of the laminated wood and prolongs its service life.
Owner:JIANG SU GUANG JIA XIN CAI LIAO KE JI YOU XIAN GONG SI
Fish meat preservative and application of ATP (adenosine triphosphate) associated compound in fish meat preservation
ActiveCN119111619AHas a fresh-keeping effectreduce corruptionMeat/fish preservation using chemicalsBiotechnologyAnimal science
The invention relates to the field of aquatic product processing and preservation, and discloses a fish meat preservative and an application of an ATP associated compound in fresh fish meat preservation. The method for preserving freshness by using the ATP associated compound comprises the step of treating fish meat by using a solution containing the ATP associated compound and calcium ions. The ATP-associated compound can supplement energy consumed by the fish meat and reduce self energy loss, and when the ATP-associated compound is applied to refrigerated fish meat, the hardness of the fish meat can be remarkably improved, water loss of the fish meat is reduced, oxidative decay of the fish meat is inhibited, and the shelf life of products is prolonged.
Owner:SHANGHAI OCEAN UNIV
An ultra-low pollution environment-friendly liquid disperse dye
ActiveCN120966273BColor stableGood dispersionNatural dyesGinkgo Biloba Leaf ExtractSodium bicarbonate
The present disclosure relates to the field of textile printing and dyeing technology, and particularly relates to an environmentally-friendly liquid dispersion dye with ultra-low pollution; the environmentally-friendly liquid dispersion dye is prepared by the following steps: preparing a Hippophae rhamnoides extract, dissolving the Hippophae rhamnoides extract in an acid solution and mixing with aluminum hydroxide; preparing a Ginkgo biloba extract, dissolving the Ginkgo biloba extract in an acid solution and mixing with aluminum hydroxide; then mixing the two in a sodium bicarbonate aqueous solution with a complexing agent and a stabilizer, drying to obtain a solid, and finally reacting the solid with polyethyleneimine to obtain an environmentally-friendly orange dye with good dispersibility.
Owner:ZHEJIANG BOAO NEW MATERIALS CO LTD
Quality-improved and flavor-enriched apricot and plum fruit vinegar and preparation method thereof
PendingCN119307343AIncrease added valuerich varietyVinegar preparationBiotechnologyAntioxidant capacity
The invention relates to the field of fruit vinegar processing, and discloses quality-improved and flavor-enriched apricot and plum fruit vinegar and a preparation method thereof.The preparation method comprises the following steps of raw material picking and pretreatment, plum juice squeezing and blending, alcoholic fermentation pretreatment, alcoholic fermentation, acetic fermentation, preliminary filtration, low-temperature clarification and centrifugal treatment; the apricot and plum fruit vinegar is processed through the processes of alcoholic fermentation, acetic fermentation, low-temperature clarification and the like, potassium caseinate is added in the low-temperature clarification stage to clarify the apricot and plum fruit vinegar, the content of bioactive components of the new variety of apricot and plum fruit vinegar is increased, the oxidation resistance of the new variety of apricot and plum fruit vinegar is improved, and meanwhile the variety of volatile flavor substances of the apricot and plum fruit vinegar is enriched; furthermore, the new variety of apricot and plum fruit vinegar is endowed with excellent taste and pleasant fragrance, and the apricot and plum fruit vinegar has the effects of resisting oxidation, resisting aging, whitening, keeping healthy and the like.
Owner:QINGDAO AGRI UNIV
Femtosecond laser processing system for building ceramic structure color decoration
ActiveCN222448701Uwide color gamuthigh resolutionLaser beam welding apparatusBeam splitterLaser processing
The utility model discloses a femtosecond laser processing system for building ceramic structure color decoration, and particularly relates to a femtosecond laser processing system comprising a beam splitter and a femtosecond laser processing system comprising a laser array. The femtosecond laser processing system constructs a structural color through femtosecond laser, displays a tunable structural color, has the characteristics of wide color gamut, high resolution and stable color development, and realizes application to architectural ceramic structural color decoration.
Owner:HANGZHOU NABEL CERAMIC +3
Device suitable for simultaneous ring spraying of two electric wires
Owner:LTK IND (SUZHOU) LTD
Method for evaluating oxidation level of coral lipid
PendingCN119246447Aeasy to operateeasy accessColor/spectral properties measurementsReference sampleCoral growth
The invention relates to the technical field of biological health condition evaluation, in particular to a method for evaluating the oxidation level of coral lipid, which comprises the following steps: A) selecting a standard reference point: selecting hermatypic coral samples in an ideal growth state and under different stress conditions as reference samples, and detecting the malondialdehyde concentration in different reference samples; b) establishing a coral lipid oxidation level according to malondialdehyde concentration data of different reference samples and a coral growth state; and C) selecting coral to be evaluated as an experimental sample, detecting the concentration of malondialdehyde, and comparing the detection result of the experimental sample with the evaluation standard in the step B) to obtain the lipid oxidation level of the experimental sample. According to the method for evaluating the lipid oxidation level of the coral reef provided by the invention, the key technical problem of how to quickly evaluate the lipid oxidation level of hermatypic coral is solved, so that the coral reef is better protected and managed.
Owner:HAINAN UNIV
Preparation method of o-hydroxybenzamide
PendingCN119285485AImprove conversion rateHigh reaction yieldOrganic compound preparationCarboxylic acid amides preparationBenzoic acidPtru catalyst
The invention discloses a preparation method of o-hydroxybenzamide, which comprises the following steps: adding methyl salicylate, ammonia gas, a porous base catalyst, an antioxidant and a solvent into a reaction kettle, introducing nitrogen into the reaction kettle, pressurizing, heating, reacting until no methyl salicylate is detected in the reaction liquid, and after the reaction is finished, cooling to room temperature to obtain the o-hydroxybenzamide. And filtering and recovering the catalyst, and distilling to remove ammonia gas and the solvent to obtain an o-hydroxybenzamide product. The method disclosed by the invention can effectively reduce the consumption of ammonia gas and improve the reaction yield, and the product is high in content, stable in color, free of wastewater and solid waste and environment-friendly.
Owner:HUNAN CHEM RES INST
Washing-resistant and perspiration-resistant chinlon fabric and preparation method thereof
PendingCN119221305AFacilitates chemical bondingMaintain propertiesDyeing processColour fastnessOrganic acid
The invention relates to the field of chinlon fabrics, in particular to a washable and perspiration-resistant chinlon fabric and a preparation method thereof. The preparation method of the washing-resistant and perspiration-resistant chinlon fabric comprises the following steps: step 1, dyeing chinlon gray cloth by using cloth dyeing liquid to obtain dyed cloth; step 2, carrying out color fixing treatment on the dyed cloth by using a color fixing solution, namely step 2a, feeding water into a dye vat, and adding organic acid A under the condition of 75-85 DEG C; step 2b, adding a color fixing agent, a ginkgo biloba extract, a radix scutellariae extract and a lotus leaf extract into the material obtained in the step 2a to form a color fixing solution, and carrying out color fixing treatment; step 2c, cooling and draining; and step 3, loosening, drying and shaping the fabric to obtain the washable and perspiration-resistant chinlon fabric. According to the chinlon fabric provided by the invention, the color fastness of the chinlon fabric can be effectively improved, and the requirements of consumers on washing resistance and perspiration resistance of fluorescent yoga trousers are met.
Owner:GUANGZHOU JIAOYUN YICHENG CLOTHING CO LTD
A blocked polyisocyanate composition and its preparation method and application
ActiveCN115873213Bmeet performance requirementsColor stablePolyureas/polyurethane adhesivesPolyurea/polyurethane coatingsPolymer scienceColor changes
The present invention provides a blocked polyisocyanate composition and a preparation method and application thereof, wherein the blocked polyisocyanate composition comprises a combination of a blocked polyisocyanate and an aromatic solvent; the mass content of C9-C10 aldehyde compounds in the blocked polyisocyanate composition is ≤50ppm. The present invention effectively solves the problem of color change during storage of blocked polyisocyanates by controlling the content of C9-C10 aldehyde compounds, so that the blocked polyisocyanates have excellent storage stability, stable chromaticity during long-term storage, and no yellowing phenomenon occurs, fully meeting the performance requirements of blocked polyisocyanates in products such as clear paints and light-colored paints.
Owner:WANHUA CHEM GRP CO LTD
Preparation method of soluble sugar substitute based on Jinxiu sweet tea pigment
PendingCN121845222AImprove physical stabilityHigh extraction rateMilk preparationPre-extraction tea treatmentBiotechnologyBrownish red color
The invention relates to a preparation method of soluble sugar substitute based on Jinxiu sweet tea pigment, and belongs to the technical field of food processing and natural product extraction.The preparation method comprises the steps that Jinxiu sweet tea leaves serve as raw materials, and composite enzymolysis, hot water extraction, membrane separation and concentration, stable blending and spray drying are sequentially conducted. The method comprises the following steps: synergistically releasing sweet taste and pigment components through enzymolysis and extraction, purifying and concentrating through a membrane technology, and protecting through a stabilizer system to finally obtain a powdery product. The sugar substitute has high sweetness and stable brownish red color, realizes integration of sugar and color, can be used as a natural sweetening agent and a coloring agent to be directly used in milk tea, coffee and other food beverages, simplifies the formula and process, and meets the label cleaning requirements.
Owner:DARK HORSE DANGSHENG (JINXIU) GREEN AGRICULTURAL TECHNOLOGY CO LTD
Counterweight method for national standard 1 # gold ingot
PendingCN119614889AadaptableImprove melting efficiencyProcess efficiency improvementSlagIntermediate frequency
The invention belongs to the field of precious metal metallurgy, and particularly relates to a counterweight method of a national standard 1 # gold ingot, which comprises the following steps of: configuring two graphite crucibles in an intermediate frequency furnace, alternately using, melting a gold raw material, adding a slag former for slagging, casting, pressing the gold ingot into a slice, cutting into a gold block, and counterweight. According to the method, the adaptability of the gold raw materials is good, the gold raw materials with single impurities exceeding the standard and the gold color lower than the national standard 1 # gold standard can be treated, the gold raw materials do not need to enter a purification system for purification again, the production period is greatly shortened, the production efficiency is improved, the cost is saved, the method is suitable for large-scale production, the produced gold ingots are stable in color, and the method has good popularization value.
Owner:YUNNAN DIANJIN INVESTMENT CO LTD
High-transmittance plastic packaging film
The utility model discloses a high-light-transmission plastic packaging film which has excellent gloss and light transmission, high weather resistance and good wear-resistant and scratch-resistant effects. Comprising a base material, a first diffusion layer, an anti-reflection layer, an anti-ultraviolet layer, an anti-oxidation layer, a damp-proof layer, a wear-resistant layer and a scratch-resistant layer are sequentially arranged on the upper surface of the base material, a second diffusion layer and a transparent adhesive layer are sequentially arranged on the lower surface of the base material, and the base material is made of a high-transparency PET sheet.
Owner:WUXI CITY XINGYUE PLASTIC CO LTD
Laser-engraved automotive trim polyurethane synthetic leather and preparation method thereof
PendingCN119221295Abarrier migrationColor stablePretreated surfacesCoatingsLaser etchingPolymer science
The invention relates to a laser-carved automotive trim polyurethane synthetic leather and a preparation method thereof, a predetermined pattern is formed on the laser-carved automotive trim polyurethane synthetic leather through a laser-carved process, and the laser-carved automotive trim polyurethane synthetic leather sequentially comprises a surface treatment layer, a surface layer, a transparent barrier layer, a foaming layer and a base cloth layer from outside to inside. According to the invention, the transparent barrier layer is arranged on the foaming layer, so that color migration generated by laser etching in a high-temperature oxidation process can be effectively blocked, and stable colors of different batches of products after laser etching are ensured.
Owner:ANHUI ANLI MATERIAL TECH
Garment tie-dyeing process based on natural vegetable dye
PendingCN119593232AEasy extractionImprove extraction efficiencyNatural dyesDyeing processBiotechnologyDyeing
The invention discloses a garment tie-dyeing process based on natural plant dye, and relates to the technical field of garment tie-dyeing, the garment tie-dyeing process comprises dye collection and preparation and garment pretreatment, during dye collection and preparation, natural plants are selected according to dyeing requirements, and the selected natural plants are treated; the ready-to-wear garment pretreatment is used for pretreating ready-to-wear garments to be tie-dyed. According to the method, the natural plant dye is extracted through synergistic use of an enzymolysis method and ultrasonic-microwave, plant cell walls are destroyed from internal and external aspects, the extraction efficiency of the dye is greatly improved, pigment components in plants can be extracted more sufficiently, more completely and more uniformly through the synergistic extraction mode, and the extraction efficiency of the dye is improved. The problem of incomplete pigment extraction possibly caused by a single extraction method is avoided, so that the extracted dye is fuller and purer in color and more stable in hue, meanwhile, the binding force between the dye and fabric fibers is favorably improved, and the color fastness to rubbing and the color fastness to washing of the dyed fabric are further enhanced.
Owner:JIANGSU HUAYI GARMENT CO LTD
Tertiary butyl phenol outfeed packaging system
ActiveCN224393198Ureduce the risk of oxidationColor stablePackaging under special atmospheric conditionsPackaging machinesTert butyl phenolWater storage tank
The utility model relates to tertiary butyl phenol production technical field, concretely is tertiary butyl phenol discharge packing system. Tertiary butyl phenol discharge packing system, including renewable molecular sieve tank, renewable molecular sieve tank is connected with raw material tank through pressure stabilizing tank, and raw material tank is connected with storage temporary storage tank through backwashing filter, and storage temporary storage tank is connected with conveyer belt through scraper forming machine, and conveyer belt is connected with nitrogen replacement temporary storage bin through vacuum nitrogen filling packing machine, and backwashing filter is connected with flushing water storage tank. The system is through renewable molecular sieve tank deep drying nitrogen, inert gas atmosphere whole process protection (raw material tank pre-charging nitrogen, storage temporary storage tank micro positive pressure control, vacuum nitrogen filling packing), from the source isolates oxygen, significantly reduces tertiary butyl phenol oxidation risk, stabilizes product colority and chemical purity.
Owner:ZIBO XUJIA CHEM IND CO LTD
Discharging device for adjusting quality of textured soybean protein and expanding productivity
ActiveCN222443034UColor stablestable textureProteins working-up by texturisingVegetable proteins working-upMechanical engineeringSoybean Proteins
The utility model provides a discharging device for adjusting the quality of textured soybean protein and expanding the productivity, which relates to a discharging device and comprises a shunting device, a transition connecting component, an extrusion cavity tube, a connecting rib plate, a mounting base and a forming die. At least two groups of same extrusion cavity pipes are arranged, one end of each extrusion cavity pipe is connected with the flow dividing device through the transition connecting assembly, the other end of each extrusion cavity pipe is connected with the forming die, and each extrusion cavity pipe comprises at least two sections of cavity pipe units which are modularly combined and connected; the inner diameter of a fluid channel of the combined extrusion cavity pipe is gradually reduced from one end of the transition connecting assembly to one end of the forming die, and the extrusion cavity pipe is of a novel structure developed on the basis of existing equipment, so that the extrusion cavity pipe is applicable to existing extrusion extruder equipment, the stability of the output quality of products is improved, and meanwhile, the output capacity can be improved.
Owner:BUHLER CHANGZHOU MASCH CO LTD +1
A preparation device and preparation method for high-purity granular 2,5-dichloroaniline
ActiveCN115634635Befficient separationColor stableAmino compound purification/separationEvaporator accessories
The present invention relates to a preparation device and a preparation method of high-purity granular 2,5-dichloroaniline. The preparation method uses spray drying to quickly and effectively separate 2,5-dichloroaniline from components such as a solvent, aniline, o-chloroaniline and m-chloroaniline in a 2,5-dichloroaniline hydrogenation reaction liquid, and uses an antioxidant to protect the color stability of the product. The high-purity granular 2,5-dichloroaniline prepared by the present invention has a purity of more than 99.8%, and after long-term storage, it still has a white appearance and has good product quality.
Owner:JIANGSU RUIXIANG CHEM +1
Wear-resistant spraying-free PP material
ActiveCN119505427AGood dispersiongood compatibilityTransportation and packagingMixingPolymer scienceCarbon fibers
The invention relates to a wear-resistant spraying-free PP material, and belongs to the technical field of spraying-free plastics. According to the invention, the modified surfactant is combined with the color master batch, so that the color master batch can be better dispersed and combined in the polymer while having oxidation resistance. By adding the plant nanofibers, the material is more wear-resistant, and the plant nanofibers are treated by the ionic liquid, so that the dispersity and compatibility of the plant nanofibers in a polymer are improved. The PP material provided by the invention has excellent wear resistance and good surface aesthetic property, does not need additional spraying treatment, realizes excellent mechanical properties and environmental friendliness through fine material proportioning and process optimization, and has good processability and stable color distribution at the same time.
Owner:FOSHAN SHUNDE NAN KAI NEW MATERIAL
High-performance single-component polyurethane waterproof coating and preparation method thereof
PendingCN119614060AImprove photostabilityGood weather resistancePolyurea/polyurethane coatingsPolyesterBenzoic acid
The invention discloses a high-performance single-component polyurethane waterproof coating and a preparation method thereof, and the high-performance single-component polyurethane waterproof coating comprises the following components in parts by weight: polyether A, polyether B, an adipic acid polyester plasticizer, a filler, powder, isocyanate, an auxiliary agent A, a catalyst, an auxiliary agent B and a solvent. The auxiliary agent A is 2, 3-dihydroxysuccinic acid or o-hydroxybenzoic acid. The filler is one or two of talcum powder or heavy calcium carbonate. The powder material is nano titanium dioxide. According to the single-component polyurethane waterproof coating adopting a moisture curing system, the coating film has high strength and extensibility, slight base displacement can be resisted, the single component is convenient to use, and working hours are saved; and the extensibility of the coating can be improved by selecting high-functionality and high-molecular-weight polyether. The polyurethane material is a waterproof material, is compact in film formation, and has excellent waterproof performance.
Owner:HUANGGANG KAILUN NEW MATERIALS CO LTD
TFT (Thin Film Transistor) color film color decay testing method and testing device
PendingCN119246013AColor stableguaranteed qualityTesting optical propertiesNon-linear opticsColor filmLightness
The invention discloses a test method and a test device for color decay of a TFT (thin film transistor) color film, and the test method comprises the following steps: manufacturing a TFT color film color chip sample, placing the TFT color film color chip sample on the test device, and simulating a light source irradiation environment through the test device; coating liquid crystal liquid on the TFT color film color piece sample; obtaining the chromaticity and the brightness of the TFT color film color piece sample before testing; under the conditions of preset temperature and preset humidity, the tested chromaticity and the tested brightness of the TFT color film color piece sample under the set illumination time are obtained; acquiring a chromaticity attenuation value according to the chromaticity before testing and the chromaticity after testing; and obtaining a brightness attenuation value according to the brightness before the test and the brightness after the test. Therefore, the test operation on the color decay of the TFT color film can be realized, and the test mode and the test device are simple and easy to operate, so that the TFT color film with more stable chromaticity can be selected in the earlier stage of research and development, the product quality of a display module is ensured, and the competitiveness of the product is improved.
Owner:TRULY OPTO ELECTRONICS
Simple device for water quality detection
ActiveCN224184811Uwell mixedquick mixMaterial analysis by observing effect on chemical indicatorPreparing sample for investigationWater sourceWater quality
The utility model discloses a simple device for water quality detection, and relates to the technical field of water quality detection. Comprising a suitcase main body, the suitcase main body is provided with a mounting mechanism for water quality detection equipment, and the mounting mechanism comprises the following steps: shaking a test tube to enable a water source and pH test paper to be in full contact and react more fully, so that inaccurate detection results caused by local concentration difference are avoided, and the detection results can better represent the pH value of a whole water sample; the detection accuracy and reliability are improved, shaking promotes material exchange between a water sample and the test paper, the reaction reaches a balanced state more quickly, the test paper can present a stable color more quickly, so that the detection time is shortened, the detection efficiency is improved, the test tube is shaken without additional complex equipment or operation steps, and the detection accuracy and reliability are improved. Therefore, full contact between a water source and the test paper and mixing of the water source can be realized, and a user can conveniently and quickly detect water quality in different scenes.
Owner:吕梁市水文水资源勘测站
Preparation method of synthetic elastic adhesive
InactiveCN119391305Aincrease elasticityimprove bindingNon-macromolecular adhesive additivesMacromolecular adhesive additivesAdhesive cementPolymer science
The invention provides a synthetic elastic adhesive preparation method, which comprises the following raw materials by weight: 20-30 parts of epoxy resin, 8-12 parts of aliphatic mercaptan, 4-7 parts of silicon carbide, 3-7 parts of a silane coupling agent, 6-12 parts of tannic acid, 7-10 parts of maleic anhydride, 11-14 parts of a modified filler, 5-8 parts of glycerin, 1-4 parts of aminopropyltriethoxysilane, 5-8 parts of methyl methacrylate, and 4-8 parts of vinyl acetate. According to the invention, the epoxy resin is used as basic resin, a vinyl acetate elasticity enhancing additive is added into the epoxy resin, aliphatic mercaptan is used as a molecular weight regulator, silicon carbide is added as an elasticity enhancing filler, and the silane coupling agent is used for modification, so that the elastic property of the adhesive is effectively improved; meanwhile, maleic anhydride and tannic acid are added into the adhesive, compared with the prior art, generated formaldehyde is very little, and the adhesive has good binding force, water resistance and stable color.
Owner:DAQING LEILI TECH DEV CO LTD
Recording player with aromatherapy atmosphere lamp
ActiveCN222507154UColor stablestable brightnessRecord information storageEnergy saving control techniquesAromatherapyFlip-flop
The disc player with the aromatherapy atmosphere lamp comprises a disc player shell, the atmosphere lamp and aromatherapy are arranged on the shell, the atmosphere lamp is used for adjusting the color and brightness according to the playing action of the disc player, the aromatherapy is used for emitting fragrance, and the aromatherapy is fireless aromatherapy; a controller is arranged in the shell, the controller is connected with external playing equipment through a 485 communicator, and the controller is connected with an atmosphere lamp through a trigger; the controller is also connected with a timer, a voltage stabilizer and an instruction input device, the timer is used for recording the working time of the disc player, the voltage stabilizer is used for providing stable power supply voltage for the controller, and the instruction input device is used for transmitting a control instruction to the controller so as to adjust the color and the brightness of the atmosphere lamp.
Owner:SHANDONG UNIV OF ART & DESIGN
Mixing device for producing compound coloring agent
ActiveCN224180765Ureduce exposurePrevent oxidative deteriorationTransportation and packagingMixer accessoriesProcess engineeringNitrogen gas
The mixing device for producing the compound coloring agent comprises a tank body and a tank cover which are connected into a whole through a flange, the tank cover is provided with a feeding port, and the bottom of the tank body is provided with a discharging port; a mounting frame, a rotary power mechanism, a stirring shaft and a stirring unit are arranged on the tank cover; the tank cover is provided with an upper bracket, a nitrogen supply ring pipe, a nitrogen outlet hole and a tank body air emptying port; a lower bracket, an argon supply ring pipe and an argon outlet hole are arranged on the tank body; a heat exchanger is also sleeved on the outer wall of the middle part of the tank body; the mixing device is provided with a nitrogen and argon dual inert gas protection system, nitrogen can be uniformly introduced into the upper part of the tank body through the annular pipe and the gas supply hole of the nitrogen supply assembly on the tank cover, and air in the tank body is naturally discharged from the air discharge port of the tank body, so that the contact between oxygen and materials is reduced, the oxygen is effectively isolated, and the material quality is improved. Oxidative deterioration of the coloring agent is prevented, and color stability and quality safety of the product are guaranteed to the maximum extent.
Owner:LIANYUNGANG XINAI FOOD TECH CO LTD