41 results about "Oleamide" patented technology

The invention discloses high-viscosity and high-elasticity modified asphalt and an asphalt composition, belongs to the field of asphalt, and solves the technical problem that the existing asphalt material lacks high-viscosity and high-elasticity modified asphalt suitable for diversified climates. The high-viscosity and high-elasticity modified asphalt suitable for diversified climates is prepared from the following raw materials in parts by mass: 100 parts of road petroleum asphalt, 2.5-4 parts of an epoxidized modified styrene-butadiene-styrene block copolymer, 5-10 parts of a hyperbranched polyester modified styrene-isoprene-styrene block copolymer, 5-10 parts of tackifying resin, 1-3 parts of a coupling agent, 1-3 parts of a coupling agent, 1-3 parts of a coupling agent, 1-3 parts of an antioxidant and 1-3 parts of a lubricant. The modified asphalt is prepared from, by weight, 1-2 parts of rubber powder, 1-2 parts of oleamide, 2-3 parts of bagasse fibers and 2-10 parts of other functional auxiliaries. The modified asphalt has the advantages of being high in viscosity and elasticity, suitable for various climates and the like.

The invention discloses a compound emulsifier for a DTY (Draw Textured Yarn) oil agent. The compound emulsifier is prepared from the following components in parts by weight: 8-20 parts of an antistatic agent, 35-50 parts of C12-14 fatty alcohol polyoxyethylene polyoxypropylene ether, 10-20 parts of fatty acid amide polyoxyethylene polyoxypropylene ether and 20-35 parts of sorbitan fatty acid ester, and the fatty acid amide polyoxyethylene polyoxypropylene ether is cocamidopropyl polyoxyethylene polyoxypropylene ether or oleamide polyoxyethylene polyoxypropylene ether. Compared with an existing emulsifier for DTY oiling agent, the compound emulsifier does not contain APEO and other components, is safe and environmentally friendly, has good emulsifying performance and low dosage, and the DTY oiling agent prepared by emulsification of the compound emulsifier is stable, has good smoothness and antistatic property, is easy to wash off on fibers, and does not affect subsequent dyeing processing.

The invention discloses a low-temperature urea solution for vehicles. The low-temperature urea solution is mainly prepared from the following raw materials: 31.3 to 32.4 parts of urea, 1 to 10 parts of an oleamide quaternary ammonium salt cation Gemini surfactant and 58.7 to 66.6 parts of water. The ultralow-temperature urea solution is simple in composition, low in price and convenient to prepare, the freezing point of the ultralow-temperature urea solution is lower than-48 DEG C, and the ultralow-temperature urea solution is suitable for being used in northern cold regions in winter and has high application prospects and application value.

The invention belongs to the technical field of high-voltage cross-linked polyethylene compositions, and particularly relates to a water-tree-resistant cross-linked polyethylene insulating composition for a high-voltage direct-current submarine cable and a preparation method and application of the water-tree-resistant cross-linked polyethylene insulating composition. The insulating composition comprises the following components in parts by weight: 80-120 parts of low-density polyethylene resin with a melt index of 1.9-2.1 g / 10min; 0.2 to 0.3 part of a composite antioxidant; 1.25 to 1.85 parts of a composite cross-linking agent; 0.2 to 0.3 part of a scorch inhibitor; 8-12 parts of a water-inhibiting master batch; wherein the water-inhibiting master batch is prepared from 80 to 120 parts of composite polyolefin resin, 6 to 9 parts of composite water-inhibiting agent, 3.6 to 5.4 parts of maleic anhydride graft and 0.15 to 0.25 part of antioxidant; the composite water inhibitor comprises polyethylene glycol and oleamide in a mass ratio of (8-12): 1. The insulation composition can inhibit insulation scorching and resist insulation water tree growth, and is high in gel content, high in extrusion cabling speed and stable in production process.

The invention discloses an environment-friendly flame-retardant leather material which comprises the following raw materials in parts by weight: 45-50 parts of pvc resin powder, 10-15 parts of calcium powder, 6-10 parts of a leveling additive, 5-8 parts of a magnesium hydroxide flame retardant, 4-7 parts of a glass fiber modifier, 2-5 parts of oleamide, 2-4 parts of eugenol, 2-3 parts of silicone oil and 2-5 parts of calcium stearate. According to the environment-friendly flame-retardant leather material, the pvc resin powder is matched with the oleamide, the eugenol, the silicone oil and other functional additives, the flame retardant is added to optimize the flame retardance of the product, meanwhile, the added leveling additive and the added glass fiber modifier are blended, coordinated and jointly synergistic, the wear resistance and flame retardance of the product are coordinated and improved, and the flame retardance of the product is improved. And the weather-resistant stability effect of the product is remarkable.

The invention relates to the fields of medicine, organic chemical industry and fine chemical industry, in particular to a method for synthesizing 1, 4-diketone by catalyzing alkenyl amide and alpha-carbonyl oxidized sulfonium ylide through photooxidation reduction. The preparation method comprises the following steps: under the protection of inert gas, reacting alkenyl amide and alpha-carbonyl oxidized sulfonium ylide serving as substrates in an organic solvent by taking a photosensitizer as a catalyst under the action of blue light irradiation and alkali at 30 DEG C for 18 hours to obtain an alkenyl amide alpha-carbonyl alkylate, and then hydrolyzing under an acidic condition to synthesize various asymmetric 1, 4-diketone compounds. The 1, 4-diketone compound is synthesized by a two-step method by taking alkenyl amide and alpha-carbonyl oxidized sulfonium ylide as initial raw materials, and the method has the remarkable advantages of wide substrate raw material sources, simplicity and convenience in operation, mild reaction conditions, high reaction efficiency, good universality, excellent functional group compatibility and the like.

This application relates to a highly water-mark-resistant cathodic electrophoretic emulsion and its preparation method, belonging to the field of electrophoretic coating technology. The preparation method of the highly water-mark-resistant cathodic electrophoretic emulsion includes the following steps: S1. Blocking some isocyanate groups of toluene diisocyanate with a mixture of n-butanol and PEG400, and then reacting and bonding the unblocked isocyanate groups with oleamide resin and polyamine to obtain a polyamine-modified isocyanate curing agent; S2. Performing a ring-opening amination reaction between epoxy resin and a first amine compound, and then adding a second amine compound to continue the reaction to obtain an amine-modified epoxy resin; S3. Grafting the polyamine-modified isocyanate curing agent onto the amine-modified epoxy resin to obtain a cationic epoxy resin; S4. Neutralizing the cationic epoxy resin with an organic acid, adding deionized water for emulsification and dispersion to obtain the highly water-mark-resistant cathodic electrophoretic emulsion. After electrophoretic film formation, the emulsion exhibits good hydrophilicity on the wet film surface, thereby significantly reducing the formation of watermarks during rapid baking.

This invention relates to the field of polymer materials technology, and discloses a low-temperature resistant and high-impact protective face shield material and its preparation method. The protective face shield material of this invention comprises the following raw materials in parts by weight: 55-70 parts of nylon 66, 5-15 parts of nylon 6, 5-12 parts of a low-temperature toughening agent, 4-10 parts of a high-temperature resistant additive, 0.5-1 part of oleamide, 0.2-0.5 parts of silane coupling agent 550, 0.2-0.5 parts of an antioxidant, and 0.5-1.5 parts of an ultraviolet absorber. The low-temperature toughening agent of this invention can improve the impact resistance of nylon materials in low-temperature environments, maintaining excellent impact strength even at low temperatures. The high-temperature resistant additive gives the nylon material excellent high-temperature thermal stability, avoiding problems such as softening deformation, yellowing cracking, and mechanical property degradation at high temperatures.

The invention discloses a wound repair material and a preparation method thereof, and relates to the technical field of medical materials. The wound repair material is prepared from the following raw materials in parts by weight: 50 to 60 parts of bioactive glass, 15 to 30 parts of chitosan, 10 to 20 parts of functional materials and 300 to 450 parts of deionized water. The preparation method comprises the following steps: reacting oleamide propyl dimethylamine with 4-chlorobutanol to generate an intermediate 1, reacting the intermediate 1 with 5, 10, 15, 20-tetra (4-carboxyl phenyl) porphyrin to generate an intermediate 2, and reacting the intermediate 2 with 4, 4 '-{[6-((1-carboxyl-2-mercaptoethyl) amino)-1, 3, 5-triazine-2, 4-diyl] bis (nitrounit)} bis [4-(2-carboxyethyl) pimelic acid] under the action of a photoinitiator to generate the functional material. The wound repair material prepared by the invention has excellent antibacterial property and hemostatic property.

The application discloses a kind of high-performance high fluidity magnetic particles for injection molding and a preparation method thereof, and relates to the technical field of bonded magnetic composite materials.The preparation steps include the following:S1. Anisotropic samarium iron-nitrogen magnetic powder is mixed with isotropic samarium iron-nitrogen magnetic powder to obtain a mixed magnetic powder;S2. Under stirring conditions, ethanol, ethylenediaminetetraacetic acid, phosphate ester coupling agent and antioxidant are added to the mixed magnetic powder, which is stirred and dispersed uniformly, and then dried to obtain pretreated magnetic powder;S3. The mixed material composed of pretreated magnetic powder, silane coupling agent, nylon, diacetyl epoxy vegetable oil glyceride, oleic acid amide and cerium stearate is added to an extrusion granulator, and the magnetic particles for injection molding are obtained by extrusion granulation under nitrogen conditions.The magnetic particles for injection molding prepared by the method have high fluidity, can meet the demand for injection molding of complex shapes, have stable mechanical properties, and have oxidation resistance, which ensures long-term stable magnetic properties of the magnetic particles and reduces magnetic attenuation during use.

The invention discloses a high-toughness composite PVC film and a preparation method thereof. The high-toughness composite PVC film is prepared from the following components in parts by weight: 62 to 74 parts of PVC resin, 54 to 67 parts of oxidized polyethlene wax, 25 to 35 parts of silicon dioxide, 26 to 39 parts of aconitic acid monoester, 14 to 28 parts of terephthalic acid, 24 to 36 parts of silane coupling agent, 16 to 28 parts of ethylene propylene diene monomer, 14 to 18 parts of glyceryl stearate, 14 to 19 parts of rare earth stearic acid and 16 to 26 parts of oleamide. Compared with a film at the present stage, the PVC film provided by the invention forms a more stable spatial network structure, can further increase the air permeability, can effectively play a supporting effect, has higher toughness, and is mainly embodied in high elongation at break, high falling standard impact strength, improved impact strength and improved air permeability of the film.

The invention belongs to the technical field of demulsifier preparation, and particularly relates to a demulsifier for an offshore oilfield and a preparation method of the demulsifier. According to the demulsifying agent for the offshore oilfield, modified polysiloxane is used as a main demulsifying agent, tallow alkyl bis (hydroxyethyl) amine oxide and tetradecyl tributyl phosphonium bis (trifluoromethanesulfonyl) imine salt are used as auxiliary demulsifying agents, methyl-1-oleamidoethyl-2-oleyl imidazoline methyl ammonium sulfate is used as a corrosion inhibitor, ethylene bis stearamide is used as a defoaming agent, and the demulsifying agent is prepared through a one-step method. The cosolvent is a dissolution dispersion medium, the triethanolamine is a pH regulator and a corrosion inhibition synergist, and the deionized water is a continuous phase carrier; all the raw materials have a synergistic effect, so that the prepared demulsifier for the offshore oilfield has excellent dehydration and demulsification performance.

The invention discloses low-odor and high-smoothness polyethylene resin as well as a preparation method and application thereof. The polyethylene resin comprises the following components in parts by mass: 100 parts of polyethylene resin A, 0.5-5 parts of smooth master batch, 0.5-5 parts of an initiator and 0-5 parts of an antioxidant, the smooth master batch is prepared by melting and blending raw materials including polyethylene resin B, a slipping agent, a grafting agent and a compatilizer; the slipping agent is selected from fatty acid amides, preferably one or more of oleamide, erucyl amide and octadecanamide; the grafting agent is selected from one or two of gallic acid and ellagic acid.

The roller end sealing device comprises a rubber fixing part, a sealing lip part and a framework part located between the rubber fixing part and the sealing lip part, and the inner end face of the sealing lip part is provided with a first sealing lip located on the medium side, a second sealing lip located on the air side and a third sealing lip located on the air side. Wherein the first sealing lip makes contact with the surface of the shaft body, non-contact gaps are formed between the second sealing lip and the shaft body and between the third sealing lip and the shaft body, and oleamide materials are doped in the first sealing lip and used for forming a lubricating grease film on the surface of a lip opening of the first sealing lip. According to the design scheme, the multiple sets of lip bodies making contact with or not making contact with the shaft body are integrated on the sealing lip part, oleamide is doped in the lip bodies making contact with the shaft body, an ultra-thin lubricating oil film can be formed in the using process, and the requirement for high-speed and grease lubrication can be met under the working conditions of high speed and grease lubrication; and meanwhile, the problems of lubrication, cooling, pollution prevention and leakage prevention of the sealing lip are solved.

This invention discloses a highly grease-resistant thermoplastic polyester elastomer composite material and its preparation method. The composite material is prepared from the following components in parts by weight: 80-95 parts thermoplastic polyester elastomer, 5-20 parts thermoplastic polyamide material, 0.3-2 parts amide composite functional additive, 0.3-2 parts stearic acid additive, 0.5-2 parts chain extender, 0.25-1 part solvent, and 0.6 parts antioxidant; the amide composite functional additive is a composite of oleamide, erucamide, and aliphatic bisamides. The highly grease-resistant thermoplastic polyester elastomer composite material provided by this invention exhibits good performance retention in highly polar grease environments, enabling the protection of drive shafts in the automotive field to function normally under high-temperature environments with grease corrosion, and also offering advantages such as lower noise and longer service life.

The application discloses a wound repairing material and a preparation method thereof, and relates to the technical field of medical materials. The wound repairing material comprises the following raw materials in parts by weight: 50-60 parts of bioactive glass, 15-30 parts of chitosan, 10-20 parts of functional material, and 300-450 parts of deionized water. The intermediate 1 is generated by the reaction of oleamide propyl dimethylamine and 4-chlorobutanol, the intermediate 2 is generated by the reaction of the intermediate 1 and 5,10,15,20-tetra(4-carboxyphenyl)porphyrin, and the functional material is generated by the reaction of the intermediate 2 and 4,4'-{[6-((1-carboxyl-2-mercaptoethyl)amino)-1,3,5-triazine-2,4-diyl]bis(nitrene)}bis[4-(2-carboxyethyl)heptanedioic acid] under the action of a photoinitiator. The wound repairing material prepared by the application has excellent antibacterial performance and hemostatic performance.

The present invention discloses a low-density foaming agent for drainage and production increase in low-pressure and low-yield wells, comprising the following components in weight percentage: 15% to 20% hexadecyl or octadecyl dimethylamine oxide, 7% to 12% oleamidopropylamine oxide, 7% to 12% hexadecyl or octadecyl dihydroxyethylamine oxide, 2% to 5% sodium α-olefin sulfonate, and 47% to 74% water. Preparation method: First, sodium α-olefin sulfonate is added to water, the temperature is raised to 70-90°C, and the temperature is kept constant and stirred for 2 to 3 hours until the sodium α-olefin sulfonate is completely dissolved to obtain a transparent solution; then, alkyl dihydroxyethylamine oxide is slowly added to the transparent solution until the paste is completely dissolved and the stirring is continued for 30 minutes; then, oleamidopropylamine oxide is slowly added and the stirring is continued for 1 hour, and finally, alkyl dimethylamine oxide is added and the stirring is continued for 1 to 2 hours to obtain the foaming agent. The foaming agent of the present invention only requires extremely low energy to lift the fluid in low-yield and low-pressure wells, thereby achieving drainage, production increase, and production restoration effects.

The invention relates to a waterproof stain-resistant composite woven fabric and a preparation process thereof, and belongs to the technical field of woven fabrics. The prepared composite woven fabric comprises a film covering layer and a woven layer from top to bottom, the woven layer is formed by weaving polypropylene fibers and nylon fibers, and 5 wt% of oleamide is added into the polypropylene fibers. The film coating layer is formed by coating a waterproof and stain-resistant coating, and the formula of the waterproof and stain-resistant coating comprises the following components in parts by weight: 45-55 parts of a waterborne polyurethane emulsion, 5-15 parts of a waterborne acrylic emulsion, 10-20 parts of a filler, 3-5 parts of polydimethylsiloxane, 3-5 parts of dimethyl silicone oil and 1-3 parts of a film forming accelerator. The prepared composite woven cloth has the advantages of being good in waterproofness and long-acting in stain resistance.

The present invention belongs to the technical field of degradable materials, and specifically relates to a HDPE resin composition for degradable packaging bottles and a preparation method thereof. The HDPE resin composition for degradable packaging bottles provided by the present invention includes 40-50 parts of modified high-density polyethylene, 20-30 parts of modified starch, 10-15 parts of degradation aids, 5-8 parts of antioxidants, 8-12 parts of nano-silicon dioxide, and 5-8 parts of oleamide. The present invention uses naringin and N-(2-aminoethyl)-3-aminopropylmethyldiethoxysilane to carry out composite modification of corn starch, effectively improves the tensile strength and elongation at break of the starch film, and blends the modified starch with glycerol, effectively solving the technical problem of poor water resistance of starch-based biodegradable resins; high-temperature calcined oyster shell powder and silane coupling agent are used to modify high-density polyethylene, effectively improving the mechanical properties of high-density polyethylene materials, while providing microbial pores for the degradation of high-density polyethylene materials, and improving the degradation rate.

The invention discloses a demulsification conditioning agent for extracting oil from palm oil wastewater, and belongs to the technical field of range, the conditioning agent is composed of polypropylene glycol, oleamide and high-carbon carboxylic acid; the demulsification conditioning agent product produced by using the high-carbon carboxylic acid as one of decanoic acid and arachidic acid has good stability, does not demulsify after long-term storage, is controllable in cost, can efficiently separate illegal cooking oil in palm oil production wastewater and kitchen wastewater, has similar and rapid production processes of different products, can adjust the formula proportion according to the characteristics of different wastewater, and is suitable for industrial production. Therefore, the optimal demulsification and tempering effect is achieved. Aiming at wastewater with relatively high oil content, the dosage of oleamide can be properly increased, so that the lipophilicity of the demulsifying and conditioning agent is improved; and for wastewater with relatively high water content, the proportion of polypropylene glycol can be increased, so that the hydrophilicity of the demulsifying and conditioning agent is enhanced. In addition, the demulsifying and conditioning agent is environment-friendly in the using process, does not generate secondary pollution, and meets the current environmental protection requirement.

The invention discloses a skin-derived staphylococcus warneri CCSM004 prepared metagen with a skin barrier repairing effect, and belongs to the technical field of microorganisms and the technical field of medicines. The staphylococcus warneri CCSM004 provided by the invention can generate L-glycine-valine dipeptide and oleamide, and a fermentation supernatant prepared from the staphylococcus warneri CCSM004 has a good effect of repairing a barrier function, which is specifically shown in that the activity of damaged HaCaT cells is improved in vitro, and the gene level expression of FLG, IVL, AQP3, ZO-1, CLDN and Occludin can be improved at the same time after the damage. Therefore, the staphylococcus warneri has a huge application prospect in preparation of external cosmetics or medicines for repairing the skin barrier.

The invention discloses a high-performance and high-fluidity magnetic particle for injection molding and a preparation method thereof, and relates to the technical field of bonded magnetic composite materials. Comprising the following preparation steps: S1, uniformly mixing anisotropic samarium-iron-nitrogen magnetic powder and isotropic samarium-iron-nitrogen magnetic powder to obtain mixed magnetic powder; s2, adding ethanol, ethylenediamine tetraacetic acid, a phosphate coupling agent and an antioxidant into the mixed magnetic powder under a stirring condition, uniformly stirring and dispersing, and drying to obtain pretreated magnetic powder; and S3, adding a mixture composed of the pretreated magnetic powder, a silane coupling agent, nylon, diacetyl epoxy vegetable oil glyceride, oleamide and cerium stearate into an extrusion granulator, and carrying out extrusion granulation under a nitrogen condition to obtain the magnetic particles for injection molding. The magnetic particles for injection molding prepared by the method have high fluidity, and can meet the injection molding requirements of complex shapes; the magnetic particles are stable in mechanical property and oxidation resistance, the long-term stable magnetic property of the magnetic particles is ensured, and magnetic attenuation in the using process of the magnetic particles is reduced.

The invention discloses a recoverable quasi-interpenetrating network foam fracturing fluid which comprises the following components in percentage by mass: 2-4% of a multi-effect agent, 0.1-2% of a thickening aid, 1-2% of a clay stabilizer, 0.5-2.5% of an iron ion stabilizer, 0.05-0.5% of an enhancer and the balance of water, the multi-effect agent is selected from one or a mixture of more of cocamidopropyl dimethylamine, oleamide propyl dimethylamine, fatty acid amide propyl dimethylamine and erucamide propyl dimethylamine; under the stimulation of CO2, the multi-effect agent obviously reduces the surface tension of the fracturing fluid base fluid, improves the foaming capacity of the foam fracturing fluid, can form wormlike micelles in the base fluid, and greatly improves the stability of foam. The reinforcer is modified nano cellulose, can form hydrogen bonds with the multi-effect agent on an interface, improve the adsorption density of the multi-effect agent and reinforce the foaming capacity, and can also form a quasi-interpenetrating network structure with the wormlike micelles in a liquid film to further improve the stability and the sand-carrying capacity of the foam fracturing fluid, and the foam fracturing fluid can be recycled for multiple times.

The invention discloses a high-temperature-resistant waterproof lock fracturing fluid and a preparation method thereof. The fracturing fluid is prepared from an oleamide surfactant, an erucyl amide surfactant, sodium salicylate, a water blocking inhibitor, a synergist, a pH regulator, a clay stabilizer and water. The water blocking inhibitor is a mixture of methanol and a fluorine-containing surfactant, the fluorine-containing surfactant is of a perfluoropolyether structure, and the fluorine-containing surfactant is selected from one of a structural formula of CF3CF2CF2OCF (CF3) CF2OCF (CF3) COONH4, a structural formula of CF3CF2OCF (CF3) CF2OCF (CF3) COONH4, and a structural formula of CF3CF2OCF2OCF2OCF2COONH4. When the fracturing fluid provided by the invention is applied to deep tight gas reservoir fracturing, on-site construction requirements are met, meanwhile, the water blocking phenomenon can be more effectively inhibited, water blocking damage to a reservoir is reduced, the gas well yield is improved, and the fracturing fluid provided by the invention is higher in temperature resistance and can be applied to the reservoir with the well temperature as high as 200 DEG C.

The application relates to a shrinkage-reducing alkali-free liquid accelerator, which comprises the following raw materials in parts by weight: 10-15 parts of a shrinkage-reducing agent, 1-4 parts of a stabilizer, 30-50 parts of an aluminum salt, 3-15 parts of an alcohol amine and 20-30 parts of water; the shrinkage-reducing agent comprises the following raw materials: an organic amine, a polyhydric alcohol acrylate, an initiator, a chain transfer agent and water; the organic amine comprises at least one of linoleyl ethanolamine, linoleamide, ethylene bisoleic acid amide, linoleic acid diethanol amide, triisopropylamine oleate, arachidonylethanolamine and triisopropylamine linoleate; the prepared accelerator can reduce the late shrinkage of sprayed concrete, and meanwhile, the early accelerating effect of the accelerator is not affected.

The invention is suitable for the technical field of heat shrink films, and provides a wear-resistant polyolefin heat shrink film and a preparation method thereof.The heat shrink film comprises an outer layer, a middle layer and an inner layer, the outer layer is prepared from matrix resin, a slipping agent, a composite anti-blocking agent, maleic anhydride grafted polyethylene, a dynamic cross-linking agent and an SD-199 anti-scraping agent, the composite anti-blocking agent is a core-shell structure particle formed by premixing hydrophobic nano silicon dioxide and polydimethylsiloxane, and the composite anti-blocking agent and the slipping agent are added, so that the film has good slipping and anti-blocking performance, and the film has good anti-blocking performance. And through the synergistic effect of the bisamide gradient migration system and the core-shell structure anti-blocking agent, the friction coefficient is reduced, and the wear resistance is improved.

The present invention relates to a thermoplastic coating for medium-voltage cables, specifically designed to improve sliding properties. This innovative coating solution addresses the technical problem of reducing the time and effort required for cable installation by decreasing the coefficient of friction between the cable surface and the conduit walls. The invention utilizes a unique formulation of LLDPE and PVC compounds, incorporating specific additives such as stearyl erucamide, behenamide, oleamides, and N,N′ ethylene Bisoleamide (EBO). Additionally, UV light stabilizers are included to protect the cable from degradation over time. The overall result is a coating that effectively reduces friction and significantly improves ease of installation. The system allows cables to be smoothly inserted into electrical conduits, even in challenging environments.

The invention discloses a nylon moisture-permeable film and a preparation method thereof, and belongs to the technical field of nylon films. The preparation method of the film comprises the following steps: (1) mixing and granulating the glass fiber, the multi-block polyamide-polyurethane copolymer and the compatilizer to prepare glass fiber master batch; (2) melting and extruding the glass fiber master batch and the mixed additive to obtain an additive master batch; the mixed additive is prepared from polysiloxane, an ethylene-acrylic acid zinc ion copolymer, oleamide, silicon dioxide, phosphite ester and lupeol; and (3) drying the multi-block polyamide-polyurethane copolymer and the assistant master batch, adding the dried multi-block polyamide-polyurethane copolymer and assistant master batch into a film blowing machine, stirring, melting and extruding, cooling and blowing extruded molten plastic to form film bubbles, extruding the film bubbles through a herringbone clamping plate to convert the film bubbles into a thin film, and cooling, curing, stretching, trimming and rolling to obtain the nylon moisture-permeable film. The obtained film has the characteristics of high elongation at break, high moisture permeability, low rebound rate and the like, and the preparation process is simple, high in production efficiency and easy to implement.

The invention relates to the technical field of oleamide preparation, in particular to an automatic oleamide preparation production line and a control system.The automatic oleamide preparation production line comprises a reaction kettle used for performing oleamide preparation reaction; the mixing tank is communicated with the reaction kettle and is used for uniformly mixing an oleamide solution; the solvent tank is used for storing a solvent of the oleamide solution, and the solvent tank is communicated with the mixing tank and conveys the solvent into the mixing tank; a heating structure is arranged in the solvent tank to heat the solvent; the distillation tower is communicated with the mixing tank and is used for distilling the oleamide solution; the cooling tank is communicated with the distillation tower and is used for cooling and crystallizing the oleamide liquid. The method has the effect of ensuring the performance of the oleamide crystal product.

The invention provides a ferrite plastic magnetic material with a high powder filling rate and a preparation method and application thereof, and relates to the technical field of plastic magnetic materials. Specifically, the material comprises ferrite magnetic powder, PA6 and an auxiliary agent, the auxiliary agent comprises a first lubricating component, a second lubricating component, a compatible component and a nucleating component; wherein the mass ratio of the ferrite magnetic powder is greater than or equal to 91%; the first lubricating component comprises at least one of erucyl amide or oleamide; the second lubricating component comprises ethylene bis stearamide; the compatible component comprises a polymer grafted with maleic anhydride or glycidyl methacrylate; the nucleating component comprises montanic acid calcium. On the basis of a specific component formula, excellent performance in multiple aspects of magnetic performance, processing performance, mechanical performance and the like can be realized; particularly, the ferrite / PA6 plastic magnetic material with the highest magnetic performance level at present can be produced in batches through a high magnetic powder proportion, and the ferrite / PA6 plastic magnetic material has a good application prospect.