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PP composite material with low VOC and high performance specially used for automotive upholsteries and preparation method thereof
ActiveCN101691435AAvoid it happening againLow costSuperstructure subunitsPolypropylene compositesFlexural modulus
The invention belongs to a polypropylene (PP) composite material with a low volatile organic compound (VOC) and high performance specially used for automotive upholsteries and a preparation method thereof, relating to the automobile field. The special material is prepared from the following components by mass percent: 60-80% of polypropylene (PP), 10-25% of reinforcing filler, 10-15% of flexibilizer, 0.2-0.5% of antioxidant and 0.1-0.5% of light stabilizer. The total volatile organic compound (TVOC) of the polypropylene composite material obtained in the invention is less than 40 mu gC / g; the notch impact strength of a cantilever beam under 23 DEG C is 15-40kJ / m2; the flexural modulus is 1500-2300MPa; the melt index is more than 10g / 10min at a temperature of 230 DEG C and at a weight of 2.16kg; and the composite material has favorable light and heat stability, low VOC, few components, low cost, good performance, easy preparation and can be widely used in the production of automotive upholsteries.
Owner:GUANGZHOU SUPER DRAGON ENG PLASTICS
In-car air quality monitoring and purification regulating system
InactiveCN104972870AImprove air qualityAchieve purification effectHuman health protectionAir-treating devicesSignal processing circuitsEngineering
Provided is an in-car air quality monitoring and purification regulating system. A storage battery and three devices respectively powered by the storage battery are installed in a car. The three devices are a ventilating device, an adsorption and filtering device and a heating device. A temperature and humidity sensor, a formaldehyde sensor, a carbon monoxide sensor, a total volatile organic compound sensor and an inhalable particle sensor which are installed in the car are respectively connected with a system control module, and the system control module comprises a sensor signal processing circuit and a power supply on-off control circuit for the three devices. The system can monitor indexes such as in-car air quality and temperature and humidity in real time and start the three devices according to the index overproof conditions; the indexes can also be uploaded through the wireless network to a mobile by the system control module to be displayed in real time; the mobile phone can send instructions to the system control module according to users' requirements to start or shut down the three devices in real time, and purification adjustment of in-car air is achieved.
Owner:XIHUA UNIV
Low-emission type polypropylene material and preparation method and application thereof
ActiveCN102875895AGet rid of completelySolve the defect of premature volatilizationElastomerVacuum extraction
The invention discloses a low-emission type polypropylene material and a preparation method and application thereof. The polypropylene material is prepared from 40-90% of polypropylene, 5-25% of elastomers, 0-40% of mineral fillers, 1-5% of VOC (volatile organic compound) eluting agents, 0.1-2% of stabilizers and VOC gas stripping agents, wherein the use amount of the VOC gas stripping agents accounts for 50-600% of the volume of polypropylene material melts, the VOC eluting agents refer to more than one kind of alcohol, and the VOC gas stripping agents are N2. The VOC eluting agents are fed from a side feed port of a double-screw extruder, so that the defect of premature volatilization of the VOC eluting agents due to a low boiling point when main feed is added is overcome. Besides, the VOC eluting agents are atomized by the aid of the foam plastic foaming principle, then the VOC gas stripping agents are brought to the polypropylene material melts to enable the VOC eluting agents and the polypropylene material melts to be more uniformly mixed, VOCs are removed more thoroughly after vacuum extraction, and TVOC (total volatile organic compound) remnants are not more than 20 microgram C / g.
Owner:TIANJIN KINGFA NEW MATERIAL
Environment-friendly single-component silylated polyether sealant for vehicle and preparation method thereof
InactiveCN106833479AImprove stain resistanceLow TVOC contentNon-macromolecular adhesive additivesPolyether adhesivesAntioxidantAdhesive
The invention discloses an environment-friendly single-component silylated polyether sealant for a vehicle and a preparation method thereof and belongs to the technical field of sealants or adhesives. The sealant is prepared from the following components in parts by weight: 100 parts of silane modified polyether resin, 5-40 parts of a plasticizer, 50-150 parts of a filler, 0.1-15 parts of a reinforcing agent, 0.1-15 parts of a colorant, 0.5-10 parts of a water removal agent, 0.1-8 parts of an adhesive force cross-linking agent, 0.1-3 parts of a heat stabilizer, 0.1-3 parts of an anti-ultraviolet absorbent, 0.1-3 parts of a hindered amine light stabilizer, 0.1-3 parts of an antioxidant, 0.2-10 parts of a silane coupling agent and 0.2-8.0 parts of a catalyst. The sealant has extremely low TVOC content and accords with the European Union TVOC standard, that is to say, the total volatile organic compound is less than or equal to 50mugC / g; and the environment-friendly single-component silylated polyether sealant can be widely applied to the fields of automobile vehicles, rail transit, aerospace, ships and warships and architecture decoration.
Owner:河南瑞朗达新材料有限公司
Application of four-needle zinc oxide whisker in photocatalysis to degrading indoor organic pollutant
InactiveCN1772353ADispersed particle separationMetal/metal-oxides/metal-hydroxide catalystsFiberUltraviolet
The application of four-needle zinc oxide whisker in photocatalysis to degrade indoor organic pollutant is to use four-needle zinc oxide whisker as photocatalytic material to degrade indoor formaldehyde, acetaldehyde, benzene and its homolog, and total volatile organic compound under the irradiation of ultraviolet ray. The four-needle zinc oxide whisker may be used alone, or through mixing with other material, such as ZrO2, SiO2, Al2O3, TiO2, CaO, MgO, CaCO3, mica, zeolite, active carbon, etc. or as additive added into plastic, ceramic, fiber, timer, rubber, etc to form different photocatalytic product. The present invention has excellent degradation effect.
Owner:NANJING UNIV
Environment-friendly flame retardant low-odor modified polypropylene and preparation method and application of modified polypropylene
ActiveCN103756135ALow smoke densityImprove mechanical propertiesSimple Organic CompoundsPolymer science
The invention belongs to the technical field of polypropylene materials, and discloses environment-friendly flame retardant low-odor modified polypropylene and a preparation method and application of modified polypropylene in inner decoration of a school bus. The environment-friendly flame retardant low-odor modified polypropylene comprises the following components by weight percent: 40-90% of polypropylene, 4-30% of a flame retardant, 2-20% of an antismoke agent, 2-5% of an odor adsorbent, 1-5% of a TVOC (Total Volatile Organic Compound) remover and 0.3-1.2% of a stabilizer. According to polypropylene provided by the invention, the effect of excellent mechanical property, good flame retardant effect and low smoke density is realized by selecting a special low-odor nitrogen and phosphorus halogen-free flame retardant and metal hydroxide as the antismoke agent. The odor adsorbent and the TVOC remover are added to effectively remove TVOC and other small molecular matters, so that the modified polypropylene which satisfies the demand on excellent mechanical property, good flame retardant effect, low smoke density, low odor and low TVOC is prepared, and the modified polypropylene can be suitable for inner decoration of the school bus.
Owner:TIANJIN KINGFA NEW MATERIAL +1
Fresh air machine with temperature compensation function
InactiveCN104613547AImprove cleanlinessStable indoor temperatureMechanical apparatusSpace heating and ventilation safety systemsIndoor air qualityActivated carbon filtration
The invention discloses a fresh air machine with a temperature compensation function and relates to the field of air purification. The fresh air machine comprises an outdoor unit and an indoor unit, the outdoor unit is a heat exchange system comprising a compressor, and the indoor unit is an air purification adjustment portion and comprises an air quality testing portion, an air purification portion and a temperature adjustment portion; the air quality testing portion comprises a PM (particulate matter) 2.5 sensor, a TVOC (total volatile organic compound) sensor, a CO2 sensor, a temperature and humidity sensor and the like; the air purification portion comprises an initial effect filter, an electrostatic dust collector, an activated carbon filter, an efficient filter and a light catalyst component; the temperature adjustment portion refers to heat exchange fins connected with the outdoor unit. Indoor air can be purified manually or according to indoor air quality testing values, the indoor air temperature can also be regulated, air is purified, and meanwhile, comfortable temperature is provided.
Owner:HAOTING (TANGSHAN) ENVIRONMENTAL TECH CO LTD
Device for improving indoor air quality
ActiveCN104422018AGood health effectImprove air qualityMechanical apparatusLighting and heating apparatusAir filtrationBenzene
The invention relates to a device for improving indoor air quality, and aims to solve a problem of poor air improving performance in the prior art. The device comprises a fan and an air duct supported by the fan, wherein the air duct is provided with an air purification module and an air improving module from upstream to downstream; polluted air is driven by the fan to flow into the air duct and is processed by the air purification module and the air improving module, so that fresh air can flow into an indoor space; the air purification module is provided with an air filtration module and a photocatalyst purification module from upstream to downstream of the air duct; and the air improving module comprises a tourmaline air improving module or an air improving module for releasing effective ingredients to the air. The device can decompose harmful gases such as formaldehyde, benzene, xylene, ammonia, total volatile organic compound (TVOC), and volatile organic compounds in the air into H2O, CO2 and other innoxious substances, so that an air purification effect can be achieved; and the air is green, healthy and comfortable by using the air improving module, and a hydration anion has a good effect of improving air quality, so that the air quality is obviously improved, and a good health care effect for a human body is achieved.
Owner:袁满雪 +2
Device and method for purifying total volatile organic compounds
ActiveCN102814099AEfficient and stable purificationWill not cause secondary pollutionCombination devicesCombustion chamberDesorption
The invention discloses a device and a method for purifying total volatile organic compounds (TVOCs). The device comprises a gas inlet, an active carbon adsorption apparatus, an supersonic desorption emitter, a cold combustion chamber, a gas supply port, a desorption fan and a gas discharge port, wherein the gas inlet collects a TVOC exhaust gas and inputs the TVOC exhaust gas to the active carbon adsorption apparatus, the active carbon adsorption apparatus adsorbs the TVOC exhaust gas, and a gas reaching a discharge standard is directly discharged through the gas discharge port; the supersonic desorption emitter is started after a certain degree of the adsorption to desorb the TVOCs, and inputs the TVOCs to the cold combustion chamber; and the desorbed TVOCs are conveyed to the cold combustion chamber together with supplied oxygen, the TVOCs are decomposed by the vacuum ultraviolet (VUV) rays of the cold combustion chamber and reacts with ozone and oxygen to generate H2O and CO2, and the TVOCs are discharged into the gas discharge port through the desorption fan after the VUV cold combustion to generate H2O and CO2 to discharge a purified gas.
Owner:深圳市科德环保科技有限公司
Nanometer oxide ceramic purification and adsorption material with decomposition and bactericidal performance
InactiveCN103537255AImprove protectionKeep healthyBiocideOther chemical processesOxide ceramicHigh concentration
Owner:王泽辉
Mine crystal formaldehyde remover used for decoration
InactiveCN103143231AImprove air purification effectStrong formaldehyde scavenging effectDispersed particle separationDeodrantsOrganic compoundAbsorption effect
The invention discloses a mine crystal formaldehyde remover used for decoration. The mine crystal formaldehyde remover used for the decoration comprises the following constituents: by weight, 10-15 parts of attapulgite, 10-15 parts of bentonite, 10-15 parts of sepiolite, 2-4 parts of kieselguhr, 10-15 parts of zeolite, 10-15 parts of zirconium phosphate and 10-15 parts of nanometer titania. The mine crystal formaldehyde remover used for the decoration is strong in air purification effect, has better absorption effects of benzene, ammonia and total volatile organic compounds (TVOC) and other chemical pollution in the air than traditional air purification materials such as activated carbon, and particularly has strong formaldehyde removing effects.
Owner:THE GREEN ENVIRONMENTAL PROTECTION TECH CO LTD
Electrodeless UV (Ultraviolet) source air cleaning and sterilizing method and device
InactiveCN102631696AImprove purification efficiencyShort processing timeDispersed particle separationGaseous substancesEngineeringOrganic compound
The invention relates to an electrodeless UV (Ultraviolet) source air cleaning and sterilizing method and device. The electrodeless UV source air cleaning and sterilizing method comprises the following steps: introducing the air to be sterilized from an air intake, filtering physical impurities in the air by virtue of a filter screen at the air intake, and then, enabling the filtered air to enter into an excitation chamber; meanwhile exciting a magnetron by a microwave controller to send out microwaves, and enabling the microwaves to enter into the excitation chamber through an exciter; and sending out UV light with the wavelength of 254-280nm by molecules in an electrodeless luminophor in the excitation chamber under the action of the microwaves, generating ozone under the combined action of the UV light and the ozone in the air, inactivating bacteria and virus in the air of the excitation chamber, and exhausting the processed air through the filter screen at the air intake. The electrodeless UV-light source air cleaning and sterilizing device comprises an air inlet fan, an air inlet filter net, the excitation chamber, the microwave controller, the exciter, the electrodeless luminophor, and the air outlet filter net. The electrodeless UV source air cleaning and sterilizing device can be used for inactivating the bacteria in the air and eliminating gaseous pollutants including formaldehyde, a TVOC (total volatile organic compound) and benzene, and has the advantages of high air purification rate, short processing time and the like.
Owner:WUHAN TEXTILE UNIV
Comprehensive treatment pneumatic caisson method for indoor environment pollution
InactiveCN102895855AReduce concentrationEffective Governance ProcessDispersed particle separationOxygen ionsOrganic compound
The invention provides a comprehensive treatment pneumatic caisson method for indoor environment pollution, and is used for solving the problem that concentrations of indoor formaldehyde, indoor benzene, indoor ammonia and indoor TVOC (total volatile organic compound) exceed the national standard. The comprehensive treatment pneumatic caisson method comprises the step of: applying the following six treatment solutions in an occasion that the concentrations of the indoor formaldehyde, the indoor benzene, the indoor ammonia and the indoor TVOC (total volatile organic compound) exceed the national standard: a nanocomposite catalyst solution, 1%-50% of acetum, a formaldehyde treatment solution containing active amido, a VOC (volatile organic compound) stabilizing solution, a negative oxygen ion generator and a deodorant. According to the application of the comprehensive treatment pneumatic caisson method for the indoor environment pollution, provided by the invention, the concentrations of pollutants after treatment are obviously reduced; and various effects are obtained for reducing the concentrations of the pollutants including the indoor formaldehyde, the indoor benzene, the indoor TVOC, the indoor ammonia and the like caused by furniture, floor, doors and window, carpets, wallpaper, fabrics, paint, coatings, dyes, building materials and the like.
Owner:天津时势科技有限公司
Method for eliminating volatile organic compounds such as formaldehyde and benzene in furniture
InactiveCN101670233AHigh removal rateWill not cause secondary pollutionDispersed particle separationAir quality improvementBenzeneTextile fiber
The invention relates to a method for eliminating volatile organic compounds such as formaldehyde and benzene in furniture; strippers which are respectively sprayed on all surfaces of furniture platepieces which are machined, assembly parts which are sprayed with paint, leathers before being assembled, textile fiber material, plastics, foaming fillers and the like after being pulverized, and thefurniture plate pieces, the assembly parts, the leathers, the textile fiber material, the plastics, the foaming fillers and the like are separately placed and are naturally dried for more than twentyfour hours, and then are assembled after being qualified by detection; the strippers are extracted from tree branches, stems, flower and fruits; after being treated, the removal rate of residual organic compounds in the furniture is high, and the removal rate of formaldehyde can reach more than 95 percent, and the removal rate of benzene and derivatives thereof is more than 93 percent and the removal rate of total volatile organic compounds (TVOC) can reach more than 98 percent; the safety is good, the pertinence is strong without causing secondary pollution of the furniture and environment.
Owner:何军荣
Low smell, low emission, halogen-free, and flame retardant PA6/PP alloy and preparation method thereof
The invention discloses a low smell, low emission, halogen-free and flame retardant PA6 / PP alloy and a preparation method thereof. The alloy comprises the following raw materials in parts by weight: 10 to 75 parts by weight of nylon 6, 10 to 75 parts of polypropylene, 10 to 30 parts of flame retardant, 1 to 5 parts of flexibilizer, 0.5 to 5 parts of hydrophobic smell adsorbing master batch, 0.1 to 1.0 part of antioxidant, and 0.2 to 1.0 part of lubricant. The preparation method comprises the following steps: weighing raw materials according to the ratio mentioned above, adding raw materials into a high speed mixing machine, mixing the raw materials for 2 to 10 minutes, adding the obtained mixture into a co-rotating parallel twin-screw extruder, and carrying out extrusion granulation. The total volatile organic compounds (TVOC) of the prepared PA6 / PP alloy are prominently reduced, and the product is not only a black product. The alloy has the characteristic of low smell, at the same time, all physical and mechanical properties of the alloy are not influenced, the alloy also has a low water absorbing rate, and the moulding and processing performance is not affected either.
Owner:HEFEI GENIUS NEW MATERIALS
Seafood preservative and preparation and application thereof
InactiveCN105613708APrevent corruptionExtended shelf lifeMeat/fish preservation using chemicalsHydrolysisPolyphenol oxidase
The invention relates to seafood preservative and preparation and application thereof and belongs to the field of food preservation and fresh-keeping. The seafood preservative is prepared from carrageenan oligosaccharides and water, and the concentration of carrageenan oligosaccharides is 10-25 g / L. A preparation method includes the steps that firstly, the carrageenan oligosaccharides are prepared from carrageenan through an enzyme hydrolysis method, then the carrageenan oligosaccharides are used for preparing the preservation, specifically, the carrageenan oligosaccharides are dissolved in water, and the concentration of the carrageenan oligosaccharides in a solution is 10-25 g / L. The seafood preservative has the advantages that seafood can be effectively prevented from decaying, the total number of bacterial colonies of shrimps, the total volatile basic nitrogen (TVB-N), the Ph value, the activity of polyphenol oxidase, sensory indexes and other physiological and biochemical indexes are effectively improved, the shelf life of seafood is prolonged, and the preservative is in the food level and is safe and free of toxin.
Owner:DALIAN UNIV
Model for predicting shelf life of salmon
PendingCN106650291ADeal with it in a timely mannerPrediction is fast and accurateInformaticsSpecial data processing applicationsDynamic modelsThiobarbituric acid
Disclosed is a model for predicting shelf life of salmon. The model is characterized in that quality index of salmon preserved at different temperature is researched, time based change rules of color difference (brightness L and red chromaticity a*), total volatile basic nitrogen (TVB-N), freshness index K-value, thiobarbituric acid (TBA), microorganism quality and sensory quality of salmon are measured to determine a salmon quality change dynamic model, and a salmon shelf life prediction module is built according to salmon quality indexes of TVB-N, the freshness index K-value, the TBA and the total number of bacterial colony reflecting microorganism changes. By the model, the rest shelf life of salmon preserved at the temperature within the range from 0 DEG C to 20 DEG C can be predicted quickly and effectively, so that directions are provided for storage, transportation and selling processes, working staff can make corresponding handling on salmon with different freshness degree in time, and cost is saved.
Owner:SHANGHAI OCEAN UNIV
Composite fermentation agent and application thereof to fermented sausage products
InactiveCN107083341AShorten the processing cycleEase of industrial productionFungiBacteriaBiotechnologyFermentation
The invention relates to a composite fermentation agent, which is prepared by mixing lyophilized bacteria powder of Staphylococcus xylosus, Lactobacillus plantarum and Debaryomyces hansenii according to a certain proportion, and an application of the composite fermentation agent to fermentation of a sausage product. A process for producing the fermented sausage is simple, and the fermentation period is shortened to two weeks; the composite fermentation with a fixed ratio can be used for producing fermented sausages with stable production quality, pathogenic bacteria, pH value, peroxide value, total volatile basic nitrogen, and nitrite residual quantity in the fermented sausage accord with corresponding foodstuff safety standards, and the product has high safety.
Owner:JIANGSU YUNRUN MEAT WARE CO LTD +1
Air purification adsorbent capable of effectively removing formaldehyde and deodorizing as well as preparation method
InactiveCN107175070AImprove adsorption capacityQuick breakdownGas treatmentOther chemical processesHazardous substanceSorbent
The invention relates to air purification adsorbent capable of effectively removing formaldehyde and deodorizing as well as a preparation method. The air purification adsorbent is prepared from the following raw materials in percentage by weight: 20 to 40 percent of activated carbon, 20 to 40 percent of diatomite, 5 to 10 percent of attapulgite, 5 to 10 percent of bentonite, 5 to 10 percent of tourmaline, 5 to 10 percent of meerschaum, 2 to 10 percent of catalysts, and 2 to 10 percent of additives. The air purification adsorbent is mainly used for eliminating harmful substances such as free formaldehyde, benzene, toluene, and TVOC (total volatile organic compounds) in the air, so that air pollution in rooms and vehicles can be solved to fulfill the aim of air purification.
Owner:程威军
Modified activated carbon adsorption scavenger and preparation method
InactiveCN102814162AImprove cleanlinessPromote circulationOther chemical processesDispersed particle separationDiseaseScavenger
The invention relates to a modified activated carbon adsorption scavenger and a preparation method. The method includes the steps of stirring nanometer active carbon and materials evenly, adding adequate water and emulsion adhesives after mixing, stirring the mixture, and after full infiltration, drying the mixture through at a room temperature and in vacuum to obtain the scavenger. Particularly, the materials comprise, by weight, 50% to 80% of nanometer active carbon, 5% to 20% of Tourmaline powder, 1% to 10% of strong oxidant, 5% to 20 % of alkaline alumina or magnesium hydroxide and 2% to 8% of emulsion adhesive. The invention belongs to the comprehensive technical fields of environmental medicine, natural products and environmental protection, environment and human health, novel materials and the like, the scavenger is mainly used for eliminating hazards of free formaldehyde, benzene, toluene and total volatile organic compound (TVOC) in the air, so that relevant air pollution in living rooms and relatively sealed space is solved, the scavenger can continuously emit far infrared rays (The wavelength is in a range from 4 mu m to 14 mu m) beneficial to human bodies, the metabolism is promoted, the hear pressure is reduced, and the like; and the scavenger has good prevention and auxiliary therapy effects on certain diseases and is good for protecting human health.
Owner:WUXI BIOX ENVIRONMENTAL MEDICINE
VOC (Volatile Organic Compounds)-inhibited master batch for polypropylene, and preparation method and applications thereof
ActiveCN105524350AReduce or suppress the production ofImprove adsorption capacityMicrometerOrganic compound
The invention relates to a VOC (Volatile Organic Compounds)-inhibited master batch for polypropylene, and a preparation method thereof, and an application thereof. The VOC-inhibited master batch comprises the following mixed components in parts by weight: on the basis of 100 weight parts of polypropylene, 10-60 parts of fully-vulcanized powder silicone rubber, 10-80 parts of cellulose nano crystal, and 5-40 parts of an acid absorption agent. wherein the average particle size of rubber particles in the fully-vulcanized powder silicone rubber is 0.05-1 micrometers, and the gel content is 60wt% or above; surface charge density of the cellulose nano crystal is 0.1-0.4e / nm<2>, length is 90-300 nm, and width is 5-15 nm. The VOC-inhibited master batch for polypropylene can effectively inhibiting generation of VOC in a polypropylene material, the content of a total volatile organic compound (TVOC) in the polypropylene material is lower than 50 [mu]g.C / g, so that the disadvantages in the prior art can be solved. The method has the advantages of simple and reliable operation process, low investment cost, and wide application prospect.
Owner:CHINA PETROLEUM & CHEM CORP +1
Colored regenerated polyester staple fibers and preparation method thereof
ActiveCN107523895AAvoid self-polyetherification side reactionsReduce contentPlastic recyclingChemical recyclingFiberPolyester
The invention relates to colored regenerated polyester staple fibers and a preparation method thereof. The preparation method comprises the following steps: firstly, carrying out reactive melting and blending on reclaimed polyester and a polyester oligomer melt to obtain a primary depolymerized melt; then carrying out alcoholysis reaction on the primary depolymerized melt and ethylene glycol to obtain a deep depolymerized melt; then carrying out TVOC (Total Volatile Organic Compound) removal and cracking functional group repairing on the deep depolymerized melt to obtain a low-TVOC-content polyester oligomer melt; then carrying out condensation polymerization on the low-TVOC-content polyester oligomer melt to obtain a low-TVOC-content regenerated polyester melt; finally, controlling color matching of the low-TVOC-content regenerated polyester melt by a computer color matching system to obtain a colored regenerated polyester melt; enabling the colored regenerated polyester melt to enter a melt direct spinning system to prepare the colored regenerated polyester staple fibers. The finally prepared colored regenerated polyester staple fibers provided by the invention have relatively small color aberration; the content of TVOC is 30ppm to 300ppm and the content of nonylphenol and isomers thereof is 80ppm to 200ppm.
Owner:DONGHUA UNIV
Method for forecasting cooling meat quality variation
The invention relates to a method for predicting the quality variation of chilled meat, which comprises researching the total number of bacterial colony, the total volatile basic nitrogen (TVBN) and the color difference and the sense variation of chilled meat under different storage temperatures, and establishing a dynamic model of the quality variation of chilled meat according to each index. The method is beneficial for rapidly and accurately doing dynamic analysis for the quality of chilled meat.
Owner:SHANGHAI OCEAN UNIV
Environment-friendly building material formed by shell powder and preparation method
The invention discloses an environment-friendly building material formed by shell powder and a preparation method. The building material comprises the following components by weight: 20 to 50 parts of the shell powder, 20 to 50 parts of diatomite, 10 to 20 parts of kaolin, 1 to 5 parts of nanoscale titanium dioxide, 5 to 20 parts of quartz powder, 5 to 10 parts of talcum powder, 1 to 5 parts of cellulose, 10 to 15 parts of sepiolite powder, 10 to 20 parts of bentonite powder, 10 to 15 parts of vermiculite fine powder, 5 to 10 parts of calcined gypsum powder, 1 to 5 parts of negative ion powder, 10 to 20 parts of a photocatalyst, 10 to 20 parts of ground calcium carbonate powder and 10 to 30 parts of white carbon black. The building material provided by the invention does not use any harmful matter, is insusceptible to emitting harmful gases like formaldehyde, benzene, ammonia gas and total volatile organic compounds (TVOC), has functions of adsorbing and decomposing the harmful gases and a certain breathing humidity-adjusting function, and can effectively kill a variety of bacteria.
Owner:韩泽龙
Air purification composition, preparation and preparation method thereof
InactiveCN108970397ARapid enrichmentPromote photocatalytic oxidation degradation processGas treatmentOther chemical processesPhoto catalyticOrganic compound
The invention discloses an air purification composition. The air purification composition is prepared from the following raw materials in parts by weight: 5 to 20 parts of a formaldehyde capturing agent, 3 to 8 parts of a porous mineral and 0.5 to 4 parts of a photocatalyst. The air purification composition disclosed by the invention can be used for rapidly enriching formaldehyde, benzene series compounds, TVOC (Total Volatile Organic Compound) and the like, and promoting a photo-catalytic oxidation degradation process of polluted gas. According to the air purification composition, the formaldehyde capturing agent, the porous mineral and the photocatalyst have a mutual cooperative effect, so that the purification efficiency is improved and the purification effect can also be improved at the same time; the continuity of material utilization can be ensured.
Owner:四川舒慈新材料有限公司
Ultralow-emission glass-fiber-reinforced polypropylene composite material and preparation method thereof
The invention discloses an ultralow-emission glass-fiber-reinforced polypropylene composite material and a preparation method thereof. The material comprises the following components in percentage by weight: 51.2-93.2% of polypropylene, 5.0-40.0% of glass fiber, 1.0-5.0% of compatilizer, 0.5-2.0% of volatilization assistant, 0.1-0.5% of antioxidant, 0.1-0.3% of photostabilizer and 0.1-1.0% of lubricant. The preparation method comprises the following steps: mixing the components in a high-speed mixer, and carrying out extrusion granulation under dual vacuum conditions by using a double screw extruder to obtain the ultralow-emission glass-fiber-reinforced polypropylene composite material. The ultralow-emission glass-fiber-reinforced polypropylene composite material has extremely low smell, and completely satisfies the requirements of the automobile host plant for smell; the TVOC (total volatile organic compound) content is much lower than the host plant standard; and the composite material has the same properties as the existing material, and thus, can be completely substituted for the existing material.
Owner:上海日之升科技有限公司
A method of preparing a highly-sensitive type meat freshness degree detecting and indicating card through an electrostatic spinning process
ActiveCN106404761AEvenly dispersedIncreased sensitivityMaterial analysis by observing effect on chemical indicatorFiberPhysical chemistry
A method of preparing a highly-sensitive type meat freshness degree detecting and indicating card through an electrostatic spinning process is provided and relates to the fields of nanometer science and food detection. Detection of the degree of meat freshness can be determined according to changes of some indicating compounds. Common indicating compounds comprise total volatile basic nitrogen, CO2, and the like. Color changes of the indicating compounds can be utilized to detect contends of the total volatile basic nitrogen, the CO2, and the like generated in a meat storage process, and adopted as indicators for measuring the degree of meat freshness, and methods like this are called physical and chemical indicator detection. The method ingeniously combines the electrostatic spinning process and physical and chemical indicator detection methods for the degree of meat freshness. Compared with other preparing methods, a nanometer fiber membrane allows the specific surface area to be large, and indicators are added into a spinning solution to prepare the nanometer fiber membrane, thus facilitating uniform dispersion of the indicators and increasing detection sensitivity and stability. The method is simple in operation and high in practicability.
Owner:BEIJING UNIV OF CHEM TECH
Toughened environmental-friendly back mesh glue as well as preparation method and application thereof
ActiveCN107090264AFast aggregationFast curing at room temperatureNon-macromolecular adhesive additivesMacromolecular adhesive additivesPolyesterToughening
The invention discloses toughened environmental-friendly back mesh glue as well as a preparation method and application thereof. A component A is prepared from the following components in parts by weight: 45-65 parts of dicyclopentadiene modified unsaturated polyester resin, 25-40 parts of bisphenol-A epoxy vinyl ester resin, 10-15 parts of hyperbranched unsaturated polyester, 1-2.5 parts of a dispersant, 5-10 parts of a core-shell particle toughening agent, 25-40 parts of spherical fine silicon powder, 15-25 parts of nano calcium carbonate, 0.2-0.8 part of an accelerator and 0.02-0.08 part of a polymerization inhibitor. A component B is prepared from the following components in parts by weight: 10-70 parts of a solidifying agent, 30-40 parts of a blending agent, 30-50 parts of an inorganic filler and 3-10 parts of a stabilizer. After the component A and the component B are mixed, the solidifying agent accounts for 0.5-3.5 percent of the total weight of the mixture. The back mesh glue is small in viscosity, good in permeability, moderate in rheology and low in content of total volatile organic compounds (VOCs); and the mechanical strength, particularly the impact resistance, of a back mesh stone is remarkably superior to that of the existing product.
Owner:江苏大力士云石护理材料有限公司
Modified atmosphere packaging low-temperature beef refreshing method
InactiveCN101889601AEasy to operateSignificant technological progressMeat/fish preservation by freezing/coolingMeat/fish preservation using chemicalsModified atmosphereNitrogen gas
The invention provides a modified atmosphere packaging low-temperature beef refreshing method. The modified atmosphere configuration sets the mixing ratio of oxygen, carbon dioxide and nitrogen to be in the range of 40%-65% of O2, 25%-45% of CO2 and 10%-25% of N2; and the optimal modified atmosphere ratio is set as 50% of O2, 25% of CO2, 25% of N2 and 55% of O2, 35% of CO2, 10% of N2. The method of the invention comprises the following steps: firstly, cooling fresh beef at 0-4 DEG C, removing acid for 24h, boning, splitting, cutting flesh lump as about 300g, putting into a modified atmosphere packaging box, and carrying out gas flush packaging of the beef by means of coordination of a modified atmosphere packaging machine, thereby achieving the refreshing effect of 24d. The inflation time of modified atmosphere packaging is 3S, the pressure is 0.5Pa, and the packaged beef is put into a refrigerator or refrigerated cabinet with the temperature of 4+ / -1 DEG C for storage. Both the aerobic bacterial count and the coliform group of the beef when the package is adopted are in the specified range of the national standard; and the physicochemical indexes of the sensory property, color, flexibility, smell and freshness of the beef and the total volatile basic nitrogen conform to the indexes of fresh meat.
Owner:新疆维吾尔自治区畜牧科学院畜牧科学研究所 +1
Environmental-friendly PU (Polyurethane) resin and environmental-friendly PU leather prepared therefrom and method for preparing PU leather
ActiveCN101974142AGuaranteed SolubilityMeet environmental protection requirementsSynthetic resin layered productsSimple Organic CompoundsPolyol
The invention relates to an environmental-friendly PU (Polyurethane) resin, which comprises oilgomer polyols, diisocyanate, dimethyl sulfoxide and dimethyl carbonate. The invention also relates to environmental-friendly PU leather using the environmental-friendly PU resin as a raw material. The environmental-friendly PU leather comprises a surface layer, a middle layer and a bottom layer, and each layer comprises the following raw materials in percentage by mass: 40-60% of PU resin, 2-10% of toner and 30-50% of solvent. The invention also relates to a method for preparing the environmental-friendly PU leather. The method comprises the steps of: coating a raw material composition of the surface layer on a piece of release paper, drying and cooling; coating a raw material composition of themiddle layer on the surface layer, drying and cooling; coating a raw material composition of the bottom layer on the middle layer, binding the middle layer with bottom cloth, drying and cooling; and stripping the release paper, and drying again. The invention solves the technical problems of high toxicity of organic solvents in the PU resin, residue of toxic organic solvent in a finished PU leather product, and overhigh TVOC (Total Volatile Organic Compound) content in the prior art. The method is particularly suitable for producing the environmental-friendly PU resin and the environmental-friendly PU leather.
Owner:浙江昶丰新材料有限公司
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