Patents
Literature
Eureka-AI is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Eureka AI

4597 results about "Firming agent" patented technology

Firming agents are food additives added in order to precipitate residual pectin, thus strengthening the structure of the food and preventing its collapse during processing.

Environment-friendly type sludge firming agent

The invention provides an environment-friendly silt curing agent, which is manufactured through the following steps: one or two among fly ash, calcium sulfate, sodium sulfate, sodium carbonate and potassium carbonate, one or two among slag, slag combination, potassium hydroxide, calcium oxide, sodium silicate or silicon dioxide, one or two among carbide slag, lime or gypsum, as well as one or two among triethanol amine surfactant, calcium lignosulfonate or sodium lignosulfonate form a plurality of optimal compound formulations according to respective attributes, are optimized, compounded, ground till the Brinell specific surface areas are between 300 and 900 m2/kg respectively and then mixed, wherein particle sizes are between 0.00040 and 0.5 mm. As a large amount of waste is utilized, the curing agent saves raw materials, solves the problems about waste discharge and environmental pollution, controls waste through waste, and has important significance to environmental protection. The invention aims to provide the environment-friendly silt curing agent which has strong adaptability to a plurality of types of silt and soil, is good in curing effect, good in durability after curing and capable of utilizing industrial waste, and can be widely applied to fill engineering, embanking or embankment reinforcement engineering, road engineering and other fields.
Owner:天津渤海环保工程有限公司 +1

High-permeability polyurethane graft-modified epoxy resin interpenetrating-network polymer grouting material and preparation method thereof

InactiveCN102924692AImprove toughnessImprove wet bond strengthProductsReagentsPolymer scienceFirming agent
The invention belongs to the field of construction materials, and particularly relates to a high-permeability polyurethane graft-modified epoxy resin interpenetrating-network polymer grouting material which is composed of a component A and a component B, wherein the component A is composed of 5-30 parts of isocyanate-terminated polyurethane prepolymer, 95-70 parts of epoxy resin and 10-30 parts of diluter I, and the polyurethane and epoxy resin form a grafted interpenetrating network structure; the component B is composed of 40-60 parts of curing agent, 10-30 parts of diluter II, 0.5-2 parts of accelerator and 0.5-2 parts of defoaming agent; and when in use, the components A and B can be evenly mixed to obtain the grouting material. The interpenetrating network grouting material provided by the invention integrates the advantages of the polyurethane and epoxy resin, has the characteristics of high adhesive strength, moderate toughness, high stability, low viscosity, favorable groutability and excellent cost performance, and can be widely used in seepage prevention, leakage stoppage, reinforcement and strengthening of construction, maintenance and other projects of tunnels, hydropower, rock soil slopes, foundation treatment, ground settlement, railways and highways.
Owner:HUNAN UNIV OF TECH +1

Heavy metal-contaminated soil solidifying agent and application method thereof

The invention discloses a heavy metal-contaminated soil solidifying agent and an application method thereof. The solidifying agent comprises the following components by mass: on the basis of the dry weight of heavy metal-contaminated soil, 10 to 15% of a binding material, 5% of biochar, 10% of vegetable fiber and 1% of a stabilizing agent. The components are added according a sequence of the stabilizing agent-the biochar-the vegetable fiber-the binding material. Addition of the chemical stabilizing agent and the biochar in the process of stabilization enables heavy metals to be absorbed and passivated and to lose mobility; preparation of heavy metal-contaminated soil slurry provides conditions for a later chemical reaction; the whole processing process is free of dust pollution and discharging of unwanted sewage. Addition of the vegetable fiber enables cracking of heavy metal-contaminated soil solidified by using a conventional solidifying agent to be effectively prevented and endurance of a solidified body to be improved. The method provided by the invention has the advantages of strong operability, low cost, extensive applicability, a high resource utilization rate, low environmental risk and easy large-scale popularization.
Owner:INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI

Fast curing epoxy resin system for blades of wind driven generator and preparation method thereof

The invention discloses a fast curing epoxy resin system for blades of a wind driven generator and a preparation method thereof. The fast curing epoxy resin system comprises a resin part and a curing agent part. The fast curing epoxy resin system is characterized in that the curing agent part includes a high-activity aliphatic amine curing agent, a high-activity aliphatic cyclic amine curing agent and a curing accelerating agent, and the proportion of the high-activity aliphatic amine curing agent to the high-activity aliphatic cyclic amine curing agent to the curing accelerating agent is (40-80): (10-50): (5-25) (in parts by weight). The fast curing epoxy resin system is formed by mixing the resin part with the curing agent part according to the proportion of 100: (20-40) in parts by weight. The invention greatly shortens the gel time under the condition of meeting the requirements for performance needed by the blades of the wind driven generator by adopting a method using the high-performance and high-activity amine curing agents and the curing accelerating agent in a mixing way; and the gel time of 100g of the fast curing epoxy resin system at a temperature of 23 DEG C is 10-60 minutes, thereby meeting the requirements for the application of the fast curing epoxy resin system for the blades of the wind driven generator of above a megawatt grade.
Owner:DONGFANG TURBINE CO LTD

Chromium-free self-lubricating passivation solution and preparation method thereof

The invention discloses a chromium-free self-lubricating passivation solution and a preparation method thereof. The chromium-free self-lubricating passivation solution is formed by compounding the following compositions in percentage by weight: 8%-12% of water-borne epoxy resin, 0.5%-1% of curing agent, 10%-15% of silane coupling agent, 0.5%-1% of inorganic component, 2%-4% of solid lubricant, 1%-2% of friction modifier, 0.5%-1% of anti-wear agent, 0.5%-1% of anti-sinking agent, and 60%-75% of diluting agent. The inorganic component is one or a combination of Ce(NO3)3 and sodium molybdate, the solid lubricant is one or a combination of two or more of polytetrafluoroethylene, polyethylene wax, polyethylene, molybdenum disulfide and graphite, the friction modifier is self-synthesized molybdenum dialkyldithiophosphate, the anti-wear agent is one or a combination of nanosilicon dioxide and nano aluminum oxide, the anti-sinking agent is attapulgite, and the diluting agent is a mixture of water and ethanol. A plate product coated with passivation solution has the advantages of being pollution-free, low-friction, anti-oxidized, anti-wear and extreme pressure-resistant, corrosion-resistant, finger-resistant, having good mechanical performance and the like, and the passivation solution can be directly coated on the surfaces of a zinc-plated plate and parts of certain mechanical equipment for use.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY +1

Preparation method and application of intelligent anti-corrosion coating capable of being automatically repaired

The invention discloses a preparation method and application of an intelligent anti-corrosion coating capable of being automatically repaired, and belongs to the field of metal corrosion prevention. The method comprises: firstly, preparing silicon dioxide mesoporous microspheres as nano containers; secondly, adsorbing L-histidine as a corrosion inhibitor into the silicon dioxide mesoporous microspheres; and finally, doping the silicon dioxide mesoporous microspheres adsorbing the inhibitor L-histidine into a mixture of epoxy resin and an epoxy curing agent, and coating a metal surface with the mixture to form an anti-corrosion coating. Stimulated by external acid or alkali, the corrosion inhibitor, namely L-histidine molecules, is quickly released from the silicon dioxide mesoporous microspheres and enters the coating, thereby effectively inhibiting corrosion. The silicon oxide mesoporous microspheres are used as the nano containers to pack the corrosion inhibitor, and are then added to the coating; in this way, the problem of compatibility of the corrosion inhibitor and the coating is solved, and uniform dispersion of the corrosion inhibitor in the coating is realized. The invention further discloses application of the anti-corrosion coating, prepared by using the method, in guardrails.
Owner:JIANGSU GUGELANSHAN PROTECTIVE FACILITIES CO LTD +2

High refraction and high adhesion large power LED packaging organosilicon material and preparation method thereof

ActiveCN102936414ASolve the problem of incomplete hydrolysis and condensationReduce air permeabilitySemiconductor devicesChemical synthesisPtru catalyst
The present invention relates to a high refraction and high adhesion large power LED packaging organosilicon material and a chemical synthesis method thereof. The organosilicon packaging material is prepared by carrying out mixing matching on a component A and a component B according to a mass ratio of 1:1, wherein the component A comprises vinyl phenyl polysiloxane, vinyl phenyl silicone oil, a platinum-containing polysiloxane catalyst and a tackifier, the component B comprises hydrogen-containing phenyl polysiloxane, dihydrideterminated phenyl polysiloxane, vinyl phenyl polysiloxane and an inhibitor, the tackifier is prepared by carrying out addition on isocyanate, methoxy silane and epoxy silane, and provides strong adhesion for PPA and a silver surface, the curing agent is prepared by compounding hydrogen-containing phenyl polysiloxane and dihydrideterminated phenyl polysiloxane, and a compounding mass ratio is preferably 4:1-2, such that the packaging material has moderate hardness and flexibility after curing so as to effectively solve contradiction of strength and cracking of the cured adhesive. With the present invention, the organosilicon packaging material with characteristics of refraction of 1.54, suitability for industrialization and fully meeting of large power LED packaging requirements can be obtained.
Owner:湖北环宇化工有限公司

Method for preparing film-coated ceramisite proppant by using oil shale wastes

The invention relates to a method for preparing a film-coated ceramisite proppant by using oil shale wastes. The method for preparing the film-coated ceramisite proppant by using the oil shale wastes is characterized by comprising the following steps of: 1) selecting raw materials which comprise the following raw materials in part by mass: 50 parts of the oil shale wastes, 50 parts of bauxite, and 1 to 4 parts of caking agent; 2) uniformly mixing the raw materials to obtain a mixture; 3) putting the mixture into a pan-type pelletizer for pelletizing to obtain raw material balls; 4) sintering the raw material balls to obtain a ceramisite aggregate; and 5) heating the ceramisite aggregate to the temperature of between 100 and 240 DEG C, adding a resin into the heated ceramisite aggregate and stirring the mixture uniformly first to ensure that the resin forms a film on the surface of the ceramisite aggregate, then adding a curing agent and other auxiliary agents, stirring the mixture uniformly, adding a lubricating agent, stirring the mixture uniformly, cooling to obtain a new mixture, crushing the new mixture and screening the crushed mixture through a 20/40-mesh sieve to obtain thefilm-coated ceramisite proppant. The method can extensively use the oil shale wastes and can solve the problem that the oil shale wastes harm the environment.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Manufacturing technique for moisture-proof middle, high-density pressed-fibre board

InactiveCN101269508APrevent deformation and thickeningResistance to intrusionAldehyde/ketone condensation polymer adhesivesDomestic articlesFiberSteam pressure
The invention relates to a production technology of a moistureproof medium and high density fibre panel in the fibre panel production technology. The production technology comprises the working procedures of wood chip screening and washing, stewing, hot grinding, glue blending and spreading, drying, paving and molding, heat pressing, and cooling. The steam pressure for wood chip stewing after water-washing ranges from 0.70 to 0.80MPa, and the stewing time is 3 to 5 minutes; when the wood chip is processed through hot grinding defibrination, a water repellent substance is added in, and the pressure in a grinding chamber is lower than the pressure in a stewing cylinder, wherein, the weight of the water repellent substance is 1 to 1.5 percent of the dry fibre, and the pressure of the stewing cylinder is 0.01 to 0.02MPa; in the working procedure of glue blending and spreading, MDI modified urea formaldehyde resin adhesive and firming agents are added in, wherein, the weight of the MDI modified urea formaldehyde resin adhesive is 9 to 11 percent of the dry fibre, and the weight of the firming agents is 2 to 4 percent of the dry fibre; in the drying working procedure, the water ratio is 8 to 12 percent; parting medium of 1 to 2ml/m<2> is sprayed onto the upper surface and the lower surface of a plate blank before entering into the working procedure of heat pressing; then the heat pressing is acted to form the fibre panel. Moistureproof plank stuffs which are produced by the invention can prevent the moisture in air from intruding, the various indexes satisfy the national standards, the surface is smooth and regular, the secondary process is facilitated, and the production cost is lowered.
Owner:DONGYING ZHENGHE WOOD IND

Preparation method of epoxy resin system for nanometer modified carbon fiber prepreg

The invention discloses a preparation method of an epoxy resin system for a nanometer modified carbon fiber prepreg. The preparation method comprises the following steps: uniformly mixing a nanometer material with solid particles including a curing agent, an accelerant and the like in liquid bis-phenol A epoxy resin by a grinding method of a three-roller grinder to prepare a mixture A; and preparing the epoxy resin system for the carbon fiber prepreg by using the mixture A as the material to melt and co-extrude with solid bis-phenol A epoxy resin under 40 DEG C-100 DEG C. Firstly, the nanometer material is uniformly pre-mixed in the liquid epoxy resin by the grinding method of the three-roller grinder, and then secondary dispersion is carried out. According to the preparation method of the epoxy resin system for the nanometer modified carbon fiber prepreg disclosed by the invention, not only can the use of an volatile organic solvent be avoided, but also the better dispersion effect of the nanometer material in an epoxy resin base body can be achieved, and therefore, the process is relatively environment-friendly, and the harms to the body of a worker are smaller. Moreover, the nanometer material is good in dispersion effect, simple in process, high in efficiency and convenient for being applied to modifying and preparing the epoxy resin system for the carbon fiber prepreg in a large scale.
Owner:LIANYUNGANG SHENYING CARBON BIKE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products