147 results about "Formamide" patented technology

The invention discloses a high-weatherability sound insulation wood plastic wallboard and a preparation method thereof, the high-weatherability sound insulation wood plastic wallboard comprises the following raw materials by weight: 30-40 parts of wood flour or plant fiber, 25-35 parts of a sound insulation functional filler, 35-45 parts of high density polyethylene, 2-2.5 parts of maleic anhydride grafted high density polyethylene, 1-1.5 parts of stearic acid, 3-4.5 parts of a weatherability auxiliary agent, and 1-1.5 parts of azodicarbonamide. The problems of cracking, deformation and the like caused by moisture absorption expansion are relieved by optimizing the proportion and compatibility of the wood flour and the plastic, and then the problems of weather resistance and sound insulation of the wallboard outdoors are solved by filling the porous sound absorption material.

A method of remediating wastewater is provided, the method comprising substantially submersing an electrocatalytic reactor in wastewater, the electrocatalytic reactor including an anode, which is mesh and defines a first bore, a filter layer, which is porous glass, carbon fiber or poly-paraphenylene terephthalamide, the filter layer including fibers and interstitial spaces between the fibers, an iron-doped titanium dioxide film on the fibers, the film including a surface that is substantially iron oxide free, the filter layer housed within the first bore and defining a second bore, a cathode, which is housed within the second bore, is mesh and defines an inner bore, and a perforated air tube housed within the inner bore; and providing at least a voltage of at least about 3 volts to the electrocatalytic reactor, in the absence of a light source, thereby remediating wastewater.

The invention relates to the technical field of sound insulation materials, in particular to flame-retardant epoxy resin composite diatomite sound insulation cotton and a preparation method thereof. The flame-retardant epoxy resin composite diatomite sound insulation cotton is prepared from epoxy resin, diatomite, a composite flame retardant, a coupling agent, a curing agent, a diluent, a foaming agent and a charring agent. The composite flame retardant at least comprises ammonium polyphosphate and melamine; the coupling agent is a silane coupling agent or a titanate coupling agent; the curing agent is methyl tetrahydrophthalic anhydride; the diluent is n-butyl glycidyl ether; the foaming agent is azodicarbonamide; the charring agent is pentaerythritol. By optimizing the diatomite modification process and combining physical dispersion and chemical modification means, the compatibility of the diatomite and the epoxy resin is greatly improved, the pain point of filler agglomeration in the traditional process is thoroughly solved, the porous sound insulation potential of the diatomite is fully released, and the sound absorption and sound insulation performance of the material is qualitatively improved.

The invention provides a composition, which comprises chlorantraniliprole, chlorfenapyr and at least one insecticidal compound, and the insecticidal compound is selected from cyanoimide, m-diamide, isoxazoline or oxadiazine. The invention also provides a preparation method of the composition.

The invention relates to the technical field of polymer foam materials, and discloses a light EVA foam material based on intermittent foaming heating and a preparation method thereof. The ethylene-vinyl acetate copolymer adhesive is prepared from the following raw materials: an ethylene-vinyl acetate copolymer, a maleic anhydride grafted ethylene-vinyl acetate copolymer, azodicarbonamide, basic zinc carbonate, triallyl isocyanurate, stearic acid and dicumyl peroxide. During preparation, a double-machine-position stepped heating and mechanical mode locking transfer process is adopted. The first-stage heating is initiated by dicumyl peroxide to construct a covalent cross-linked skeleton; in the second-stage foaming heating process, basic zinc carbonate is heated and decomposed, and anhydride groups are promoted to be hydrolyzed and combined with released zinc oxide in situ to form ionic crosslinking. A double-order cross-linked network formed by covalent bonds and ionic bonds can absorb bubble expansion stress and stabilize an internal microstructure. According to the invention, the occurrence rate of cell merging and cracking under the condition of low density is reduced, and the foaming material with low apparent density and small compression set rate is obtained.

The invention belongs to the technical field of daily plastic products, and particularly relates to a high-temperature-resistant reinforced transport case material and a preparation method thereof. The transport case is prepared from the following raw materials in parts by mass: 88 to 100 parts of polypropylene, 8 to 12 parts of PP-g-ITA, 7 to 10 parts of PP-g-AN, 0.05 to 0.2 part of an aryl dicarboxamide nucleating agent, 5 to 8 parts of fibers, 3 to 5 parts of mica powder, 0.2 to 0.5 part of an antioxidant, 0.1 to 0.2 part of a benzotriazole ultraviolet absorbent, 0.2 to 0.3 part of a silane coupling agent, 0.1 to 0.2 part of polyethylene wax, 0.2 to 0.4 part of calcium stearate and 0.1 to 0.3 part of pentaerythritol stearate. The preparation method of the high-temperature-resistant reinforced transport case material is simple, and a transport case prepared from the high-temperature-resistant reinforced transport case material is excellent in thermal stability, weather resistance and mechanical property.

This invention discloses a method for preparing a three-dimensional integrated lumbar support cushion. The raw materials of the lumbar support cushion include: ethylene-vinyl acetate copolymer, polyether-type thermoplastic polyurethane elastomer, physically foamed microspheres, azodicarbonamide, caprolactam-blocked 4,4'-diphenylmethane diisocyanate, surface-modified copper nanowires, and silver-loaded silicone composite components. The preparation process is as follows: the matrix resin and modified copper nanowires are melt-blended at high temperature, and then mixed with the foaming system, crosslinking agent, and composite components at low temperature to obtain a blended base material; the blended base material is injection molded, followed by static differential temperature field for pressure holding and curing, and finally cooled and demolded. This invention utilizes copper nanowires to construct a thermally conductive network, which, combined with the external temperature difference, forms a continuous foaming ratio and crosslinking density gradient inside, eliminating the physical phase interface of traditional multi-material splicing, significantly improving the tear resistance and fatigue life of the transition zone; and utilizes cooling phase separation to form an anti-slip and antibacterial skin layer.

The application provides a method for detecting psychotropic drugs in environmental sludge based on acid pretreatment, which comprises the following steps: S1: obtaining a sludge sample to be detected, performing pressurized fluid extraction on the sludge sample to be detected after freeze-drying to obtain an extraction solution, performing solid-phase extraction on the extraction solution to obtain an eluate, and redissolving the eluate to obtain a solution to be detected, wherein the pressurized fluid extraction is performed under the condition of 5 ‰ formic acid water without heating; and S2: performing liquid chromatography mass spectrometry on the solution to be detected to obtain a mass spectrum, wherein the psychotropic drug is one of eptazocine, codeine, AMP, MAMP, MDA, monoacetylmorphine, MDMA, PMMA, fentanyl, norfentanyl, ketamine, norfentanyl, benzoyl eptazocine, cocaine and tramadol, and the method realizes detection of multiple psychotropic drugs in environmental sludge.

The present invention relates to a process for producing poly(anthranilamide) by polymerization of isatoic anhydride on a starter, preferably in the presence of a solvent, at a reaction temperature in the range of 110°C to 300°C, the starter comprising an aliphatic mono- or diamine containing 5 to 13 carbon atoms, an araliphatic mono- or diamine containing 7 to 15 carbon atoms, an aromatic diamine containing 6 to 13 carbon atoms, a carboxylic acid amide of the formula Ar-(C=O)NHR, where Ar represents an amine NH group or an aromatic group substituted with an NH group, and R represents an aromatic or aliphatic group, or a mixture of the above-mentioned starters, and where a solvent, if used, comprises an organic solvent that is liquid at the reaction temperature, an ionic liquid, or a mixture of these solvents, to obtain poly(anthranilamide) based on the starter. The present invention also relates to the poly(anthranilamide) obtained by the process according to the invention and to its use in the production of fibers or composite materials.

This invention relates to the field of slow rebound foam technology, and particularly to a slow rebound foam based on waste PET polyether polyol, and its preparation method. The waste PET-based polyether polyol is obtained from bis(2-hydroxyethyl) terephthalamide obtained by aminolysis of waste PET as a starting material. This not only enables the recycling and reuse of waste PET, but also allows it to be used as a foaming material for slow rebound foam. The composite polyether is composed of polyether polyol I, polyether polyol II, waste PET-based polyether polyol, and polymer polyol. By adjusting and controlling parameters such as functionality, molecular weight, hydroxyl value, viscosity, and propylene oxide content of the waste PET-based polyether polyol, it can be stably stored at room temperature without crystallization. When used as the soft segment of slow rebound foam, it significantly improves the low-temperature resistance of the slow rebound foam, avoiding the problems of slow rebound polyurethane foam hardening and becoming difficult to cut in winter, as well as poor resilience.

To provide a compound that expands the spectrum of pesticides.SOLUTION: Provided is a compound represented by formula (b*): (in the formula, E is hydrogen or a C1-C6 alkyl group; A is -CN, chlorine, or fluorine; and L is S, SO, or SO2).SELECTED DRAWING: None

The invention provides an insecticidal composition containing an active component A and an active component B. The active component A is chlorantraniliprole, the active component B is a compound shown as a formula I (formula I), the mass ratio of the active component A to the active component B is (1-30): (1-30), the insecticidal composition further comprises an auxiliary agent, the active component accounts for 1%-50% of the weight of the insecticidal composition, and the auxiliary agent accounts for 1%-50% of the weight of the insecticidal composition. The insecticidal composition is used for preventing and treating agricultural pests, has an obvious synergistic effect, and can reduce the dosage and delay the occurrence of pest resistance to drugs.

The utility model relates to the technical field of stirring devices, and discloses a mixing stirrer for azodicarbonamide, which comprises a large helical ribbon and a small helical ribbon, the head end of the large helical ribbon and the head end of the small helical ribbon are respectively and fixedly connected to one side of a rotating shaft through a first connecting pipe and a second connecting pipe; the tail ends of the large helical ribbon and the small helical ribbon are fixedly connected to the other side of the rotating shaft through a third connecting pipe and a fourth connecting pipe correspondingly, one end of the rotating shaft is rotationally connected to one end of a water inlet main pipeline in a sealed mode, and the other end of the water inlet main pipeline is fixedly connected with the output end of a circulating water cooling mechanism; the other end of the rotating shaft penetrates out of the outer side of the box body and is rotationally connected with one end of a water outlet main pipeline in a sealed mode, the other end of the water outlet main pipeline is fixedly connected with the input end of a circulating water cooling mechanism, a U-shaped water tank shell is fixedly connected to the bottom of the box body, and a water inlet branch pipeline is fixedly connected to one side of the top end of the U-shaped water tank shell; the diagonal sides of the top end of the U-shaped water tank shell are fixedly connected with water outlet branch pipelines, and the material cooling function is achieved through a water circulation mechanism.

The application discloses a benzyl benzoyl or fluorinated alkane substituted phenol compound and a synthesis method and application thereof, and belongs to the technical field of drug synthesis. The synthesis method comprises the following steps: step one, 0.3mmol of o-aminobenzamide, 0.3mmol of ketone, 10mol% of I2 and 5mL of anhydrous ethanol are added into a 10mL round-bottom flask at one time, stirring is carried out at 80 DEG C for 24h, after the reaction is completed, the reaction liquid is poured into ice water, the volume ratio of the reaction liquid to the ice water is 1:10, ethyl acetate is extracted, the organic layer is washed with saturated brine, dried with anhydrous Na2SO4, and spin-dried to obtain a crude product. The synthesis method has the advantages of mild reaction condition, few side reactions and simple and convenient operation. And the benzyl benzoyl or fluorinated alkane substituted phenol compound obtained by the application has the effect of resisting colon cancer.

The invention provides a weeding composition which comprises a component A and a component B. The component A is one of a compound 1, a compound 2 and a compound 3, the component B is selected from one of tembotrione, isoxaflutole, dicamba, foramsulfuron, nicosulfuron, rimsulfuron, topramezone, 2, 4-D isooctyl ester, fenoxaprop-p-ethyl and MCPA, and the component B is one of tembotrione, isoxaflutole, dicamba, foramsulfuron, nicosulfuron, rimsulfuron, topramezone, 2, 4-D isooctyl ester, fenoxaprop-p-ethyl and MCPA. The component A and the component B in the composition have a good synergistic effect, and the composition has a good application prospect.

The invention discloses a compound pesticide containing chlorantraniliprole. The compound pesticide is formed by compounding an active component A and an active component B, the active component A is chlorantraniliprole, the active component B is any one of dinotefuran, thiamethoxam, cyantraniliprole and spinetoram, and the mass ratio of the active component A to the active component B is (1-10): (1-30); the composition further comprises auxiliary materials and the balance of agriculturally acceptable auxiliaries and water or organic solvents. The auxiliary materials comprise one or more of a dispersing agent, a wetting agent, a thickening agent and a stabilizing agent, and the total mass of the auxiliary materials accounts for 1-20% of the total mass of the preparation. Compared with the prior art, the chlorantraniliprole-containing composite insecticide has the advantages of high efficiency, broad spectrum, low toxicity and synergistic interaction.

The present application discloses a polyurethane resin and a manufacturing method thereof, which comprises the following steps: mixing a polyester polyol, a polyether polyol, a first chain extender, a diisocyanate and a mixed solvent, and performing a polymerization reaction to obtain a prepolymer. A second chain extender is added to the prepolymer, and a chain extension reaction is performed to obtain the polyurethane resin. The mixed solvent comprises diethylformamide and butanone, and the mass ratio of diethylformamide to butanone in the mixed solvent is 0.45 to 1.80. The total amount of the first chain extender and the second chain extender is 0.9 wt% to 2.5 wt% based on 100 wt% of the total weight of the polyurethane resin. The polyurethane resin has good processability, bending resistance and peel strength.

The invention discloses a polyamide composition as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The polyamide composition is prepared from the following components in parts by weight: 38 to 52 parts of polyterephthalamide resin; 13 to 56 parts of long carbon chain polyamide resin; 8-22 parts of a flame retardant; 10 to 45 parts of glass fiber; 8-42 parts of a flaky filler; the long carbon chain polyamide resin comprises at least one of PA610 (polyamide 610), PA612 (polyamide 612), PA1010 (polyamide 1010) and PA1012 (polyamide 1012); the relative viscosity of the poly-terephthalamide resin is less than 3.0, and the relative viscosity of the long carbon chain polyamide resin is less than 3.0. The polyamide composition disclosed by the invention has the characteristics of low CLTE, ultrahigh flatness and excellent impact cracking resistance.

The present application relates to a kind of liquid regeneration polyester-based diols based on waste PET and its preparation method.The liquid regeneration polyester-based diols are composed of bis (2-hydroxyethyl) terephthalamide, epsilon-caprolactone, third copolymer component, organic solvent, catalyst, hydrogen bond donor.Bis (2-hydroxyethyl) terephthalamide obtained by waste PET aminolysis and epsilon-caprolactone are used as raw materials, and third copolymer component is introduced, and ring-opening copolymerization is carried out under the action of catalyst and hydrogen bond donor, to obtain liquid regeneration polyester-based diols.The advantages of the present application are that bis (2-hydroxyethyl) terephthalamide obtained by waste PET aminolysis is used to prepare liquid regeneration polyester-based diols, the crystallization phenomenon of traditional polyester-based diols at room temperature is inhibited, the flowability problem is improved, and it is used for industrial polyurethane slow-rebound sponge foaming, which can improve the physical and mechanical properties of slow-rebound sponge.

The invention relates to the technical field of insecticide synthesis, and discloses a synthetic method of substituted aminobenzamide. According to the halogenation reaction route provided by the invention, the chlorinated substance can be obtained with high yield, the post-treatment operation of the chlorination reaction is simple, the step of purifying the chlorinated substance by additionally adding a solvent is not needed, the external standard content of the obtained chlorinated substance as shown in the formula 2 can reach 98% or above, and the pure yield of the product is 95% or above. According to the method, 3-methyl-2-aminobenzoic acid is used as a starting raw material, the substituted aminobenzamide is prepared through the three-step reaction of ring closing, halogenation and ring opening in sequence, the reaction route is short, the yield of each step can reach 95% or above, the total yield can reach about 90% at most, the target product content is high, atom economy is good, the amount of waste water is small, and three-waste treatment is facilitated.

The invention relates to the technical field of waste gas treatment, in particular to an organic waste gas adsorption and recovery treatment device for chlorantraniliprole production, which comprises a base, an adsorption box is fixedly mounted in the middle of the upper surface of the base, a second bracket is fixedly mounted on one side of the upper surface of the adsorption box, and a second adjusting frame is movably mounted on the inner surface of the second bracket in a clamping manner; an adjusting screw rod is movably installed in the middle of the upper surface of the second adjusting frame through a bearing, the other end of the adjusting screw rod spirally and movably penetrates through the upper surface of the second support and extends out, a funnel-shaped guide cylinder is fixedly installed on one side of the top face in the adsorption box, and assembling rings are fixedly installed on the upper portion and the lower portion of the inner surface of the adsorption box correspondingly; assembly discs are movably embedded in the outer surfaces of the sides, close to each other, between the assembly rings, and butt joint openings are formed in the two sides of the middle of the upper surface of each assembly disc in a penetrating mode. The conveying treatment flow speed can be stabilized according to the change of waste gas emission, and the overall treatment efficiency of waste gas is stabilized while the waste gas treatment energy consumption is reduced.

The application discloses an anti-aging and yellowing-resistant foamed polyester material and a preparation method thereof, and relates to the technical field of polyester materials. The anti-aging and yellowing-resistant foamed polyester material is prepared from the following raw material components in proportion by weight: 3-5 parts of anti-ultraviolet SEBS, 3.6-7 parts of triethylamine, 4-6 parts of a flame-retardant and wear-resistant filler, 100 parts of TPEE, 0.9-1.1 parts of a polymer wax, and 0.6-0.8 parts of a foaming agent. The anti-ultraviolet SEBS is obtained by copolymerization grafting of an unsaturated benzophenone ultraviolet absorber, SEBS and maleic anhydride. The flame-retardant and wear-resistant filler is obtained by mixing and reacting carboxylated nano silicon dioxide, pentaerythritol and phosphorus oxychloride. The polymer wax is EVA wax. The foaming agent is azodicarbonamide. The anti-aging and yellowing-resistant foamed polyester material has good mechanical properties, anti-aging performance, flame-retardant performance and compression resistance.

The invention discloses an anti-fouling PCR ABS laser etching material and a preparation method thereof, and relates to the technical field of PCR ABS material modification and laser etching function integration. The anti-pollution PCR ABS laser etching material has the advantages that the anti-pollution PCR ABS The invention discloses a PCR (Polymerase Chain Reaction) ABS (Acrylonitrile Butadiene Styrene) resin composition, which is prepared from the following raw materials in parts by weight: 50 to 90 parts of PCR ABS resin, 6 to 10 parts of modified organic silicon micro powder, 2 to 15 parts of modified ultra-high molecular weight polyethylene powder, 2 to 8 parts of azodicarbonamide, 2 to 6 parts of methyl methacrylate-butyl acrylate copolymer, 1 to 3 parts of antioxidant 1010, 0.5 to 2.5 parts of glass beads, 0.5 to 2 parts of anatase titanium dioxide, 0.2 to 1 part of silane coupling agent KH-550 and 0.5 to 1.0 part of calcium-zinc stabilizer. 0.1 to 0.5 part of carbon black, 0.05 to 0.1 part of polyethylene wax and 0.4 to 1 part of absolute ethyl alcohol. Aiming at core pain points of laser engraved keys of a computer keyboard, through optimization of synthetic resin, the problems that characters made of common materials are polluted by hand sweat, alcohol and the like and are blurred within 1-3 months are effectively solved; and the resin is adaptive to most keyboard key basic resins such as ABS, PC and the like, and the character definition and the service life of the product are both considered.

The present invention is directed to an aqueous composition comprising a mixture of epyrifenacil, mesotrione and pyroxasulfone. The present invention is further directed to methods of controlling weeds by applying the compositions of the present invention to a weed or an area in need of weed control.

An alkali metal salt of 4-chloro-N-[2-[(4-chlorophenyl)methyl]-3-oxo-1,2,4-thiadiazol-5-yl]benzamide and its formulations are provided. This salt is particularly useful in the treatment or prevention of disorders or conditions that improve with AMPK activation.

The invention relates to the field of composite material mold pressing, in particular to a lightweight sheet and a preparation method thereof. According to the invention, an unconventional curing system azodicarbonamide and an azodiisobutyronitrile initiator are used for initiating polymerization, gas is locked through resin curing and crosslinking to form pores so as to achieve the purpose of light weight, and the gas is harmless nitrogen which accords with the idea of environmental protection; according to the invention, a traditional peroxide curing agent is abandoned, azodicarbonamide and azodiisobutyronitrile are directly utilized to produce active free radicals while being thermally decomposed to release gas, and styrene and unsaturated polyester resin are initiated to be subjected to cross-linking curing, so that gas release and curing are synchronously carried out; and the balance between gas release and resin cross-linking curing can be controlled only through the temperature.

The invention discloses an interpenetrating type iron-based metal organic framework material and a preparation method and application thereof, the molecular formula of the material is [Fe3O4 (H2O) 3 (L1) (L2) 4 / 3], in the formula, L1 represents deprotonated 4-(4-carboxybenzamido) benzoic acid, L2 represents deprotonated 1, 3, 5-tri (4-carboxyphenyl) benzene, and n represents 1, 3, 5-tri (4-carboxyphenyl) benzene; the material belongs to a hexagonal crystal system and an R-3c space group, and is prepared by taking a trinuclear iron cluster, 4-(4-carboxybenzamido) benzoic acid and 1, 3, 5-tri (4-carboxyphenyl) benzene as raw materials, acetic acid as a template agent and N, N-dimethylformamide and n-amyl alcohol as solvents through solvothermal reaction. The interpenetrating type iron-based metal organic framework material disclosed by the invention has a relatively large specific surface area and a relatively large pore structure, has good adsorption performance on methane and carbon dioxide, and has a wide application prospect in the fields of methane storage and flue gas carbon dioxide capture.

The present invention relates to use of a personal care composition comprising a heteroaromatic compound selected from nicotinic acid, picolinic acid, niacin, niacinamide, picolinamide and mixtures thereof, a retinoic acid precursor selected from retinyl esters, retinol, retinal, retinoic acid and mixtures thereof, a resorcinol compound; and an oil-soluble sunscreen, for improving the barrier function of skin.