29 results about "Dimethyl phthalate" patented technology

The invention discloses an in-vehicle intelligent mosquito repelling method, and relates to the technical field of intelligent vehicle environment control, and the method comprises the steps: synchronously collecting in-vehicle multi-modal data through a sensor, and carrying out the preprocessing of the in-vehicle multi-modal data, and obtaining the preprocessed in-vehicle multi-modal data; a chemical mosquito repelling mode or a physical mosquito repelling mode is selected based on the preprocessed multi-mode data, and in-vehicle mosquito repelling control is carried out; the mosquito density at the air outlet of the air conditioner is calculated, and if the mosquito density in the unit volume exceeds the preset density, an ultraviolet LED lamp is turned on for catalytic decomposition of dimethyl phthalate residues in the air; according to the method, historical driving data of a user is obtained through a vehicle-mounted T-BOX, an LSTM neural network is adopted for mosquito occurrence probability prediction, a pre-mosquito-repelling request is pushed to a user mobile terminal according to a prediction result, and in-vehicle intelligent mosquito repelling based on multi-modal sensing is completed. Efficient, safe and low-pollution mosquito repelling measures are achieved, response can be conducted quickly, and the health and comfort of passengers are guaranteed.

The invention belongs to the field of functional composite fabrics, and provides a mosquito-repellent thermoplastic polyurethane composite fabric and a preparation method thereof.According to the mosquito-repellent thermoplastic polyurethane composite fabric and the preparation method thereof, the design that mosquito-repellent microcapsules of a core-shell structure are dispersed in a thermoplastic polyurethane hot melt adhesive layer is adopted, a microcapsule core layer comprises mosquito-repellent active ingredients such as icaridin, deet or dimethyl phthalate, and the mosquito-repellent active ingredients are dispersed in a thermoplastic polyurethane hot melt adhesive layer; the shell layer is made of a polyurea material and is prepared through an interfacial polymerization method, high-load stable dispersion and controllable dot matrix film forming of the microcapsule in a hot melt adhesive system are achieved, the content of the microcapsule can reach 0.5-15 wt%, the particle size is controlled to be 0.1-2.0 m, the drug loading capacity reaches 10-60 wt%, the problem that the mosquito-repelling microcapsule is prone to damage and failure in the high-temperature melting mixing and hot-pressing compounding process is solved, and the mosquito-repelling microcapsule has good application prospects. The prepared composite fabric is high in mosquito repelling rate, still keeps an effective mosquito repelling function after being washed for multiple times, and has a wide application value.

The present invention relates to the technical field of the preparation of methyl ethyl ketone peroxide, and particularly relates to a preparation method of methyl ethyl ketone peroxide with low water content, which comprises the following steps: (1) adding hydrogen peroxide into a reaction kettle, adding a catalyst and stirring evenly, and then slowly dropping methyl ethyl ketone into the reaction kettle under stirring, and carrying out a reaction after the dropping is completed; (2) after the reaction is completed, adding a water separator into the reaction mixture, standing for stratification, and taking the upper-layer liquid; (3) freezing the upper-layer liquid, filtering the frozen liquid, and adding dimethyl phthalate into the filtrate for dilution to obtain the product. In the preparation method of methyl ethyl ketone peroxide with low water content of the present invention, by adding a freezing treatment process, the synthesized methyl ethyl ketone peroxide is frozen at -30 to -50 °C, greatly reducing the water content of methyl ethyl ketone peroxide. The water content of the prepared methyl ethyl ketone peroxide product is 4-5%, and the active oxygen content is 8-9%. The reaction performance and curing performance are good, and it has high production application value.

The invention discloses an Apiotrichum loubieri gene and an application of the Apiotrichum loubieri gene. Relates to the technical field of fermentation. The invention provides a specific strain and application thereof in reconstituted tobacco. According to the tobacco leaf extracting solution fermented by the bacterial strain, the content of esters such as 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, dimethyl phthalate, tributyl phosphate, dihydroactinidiolide and methyl palmitate is remarkably increased, and the content of the esters such as 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, dimethyl phthalate, tributyl phosphate, dihydroactinidiolide and methyl palmitate is remarkably increased; nine novel ester substances with aromatic smell, fruit fragrance, flower fragrance and other characteristic aromas are newly generated, and four phenolic aroma components are newly added. And the whole fragrance style is obviously enhanced. It is shown that the aroma-producing Apiotrichum loubieri AL-4 fermented tobacco enzyme extracting solution has good aroma-producing capacity, and through the combined effect of enzymolysis and fermentation, the aroma-producing Apiotrichum loubieri AL-4 fermented tobacco enzyme extracting solution is expected to play an important application value in the field of reconstituted tobacco raw material quality improvement.

The invention relates to trypsin derived from euphausia superba, a coding gene and application of the trypsin to degradation of plasticizers, and belongs to the field of enzymology, the amino acid sequence of the trypsin is shown as SEQ ID NO.1, and the amino acid sequence of the gene for coding the trypsin is shown as SEQ ID NO.2. The trypsin can degrade the plasticizers PAEs, and the trypsin can be used for degrading the plasticizers PAEs. And the plasticizer is dimethyl phthalate, diethyl phthalate, dipropyl phthalate and / or dibutyl phthalate, and has a very good application prospect.

The invention discloses an application of dimethyl phthalate or a derivative of dimethyl phthalate in prevention and treatment of pathogenic bacteria, and belongs to the technical field of pesticides. The invention aims to provide a novel pesticide component for preventing and treating soybean diseases. The invention provides an application of a carbonyl compound in at least one of the following aspects: (1) preventing and treating pathogenic bacteria; (2) the resistance of plants to pathogenic bacteria is improved; (3) the pathogenicity of pathogenic bacteria is inhibited; (4) inhibiting mycelial growth of pathogenic bacteria; the important application value is realized on the soybean disease prevention and control.

The invention discloses a graphene functionalized reinforced modified polyester fiber and a preparation method thereof. The method comprises the following steps: 1) polymerizing dimethyl phthalate, ethylene glycol, a catalyst and a multi-component composite modified material as raw materials to obtain functionalized modified polyester master batches; and 2) carrying out melt spinning on the functionalized modified polyester master batch to obtain the graphene functionalized enhanced modified polyester fiber. The functional modified polyester master batch is prepared from the self-made multi-component composite modified material, and then the polyester fiber is prepared, so that a product with excellent mechanical property, flame retardant property, ultraviolet resistance and thermo-oxidative aging resistance can be obtained, and the performance requirements on the polyester fiber in a larger application scene can be better met; the application prospect of the polyester fiber can be widened.

The invention provides an immobilized microbial agent with carbon sequestration and decontamination capabilities as well as a preparation method and application thereof, and belongs to the technical field of microorganisms. The immobilized microbial agent is prepared by taking bacillus glutamicum, bacillus, haematococcus, carbon sequestration ammoxidation archaea and carbon sequestration bacterium acetobacter xylinum as raw materials and taking charcoal as a carrier, and has efficient degradation capacity on dimethyl phthalate, diethyl phthalate, dibutyl phthalate, butyl benzyl phthalate and the like; and the soil carbon sequestration capability can be enhanced.

The application belongs to the technical field of edible oil detection, and particularly relates to a preparation method of a standard sample for detecting the peroxide value of edible oil. The method uses edible oil to prepare peroxide by first heating under low oxygen and then heating under oxygen at a rising temperature, and the prepared peroxide is dispersed in a plant oil in a reverse micelle system, and dimethyl phthalate and diglyceride are added. The obtained standard sample has high stability, and the effective period is significantly prolonged, and is suitable for being applied to laboratory capability verification, internal quality control, method verification and the like.

The invention belongs to the technical field of flue gas desulfurization treatment equipment, and discloses a desulfurization tower coated with a coating and a construction process thereof, the desulfurization tower comprises a desulfurization tower body and an anticorrosive coating coated on the lining surface of the desulfurization tower body; graphene coating is adopted as the anti-corrosion coating; specifically, the graphene coating is prepared from raw materials in parts by weight as follows: 80-100 parts of epoxy resin, 15-20 parts of deionized water, 1-18 parts of graphene sheets, 1-25 parts of a graphene dispersant, 25-55 parts of an RS preservative, 10-18 parts of isooctyl ester, 3-10 parts of a thickener, 5-20 parts of dimethyl fumarate, 5-20 parts of a demolding preservative and 10-25 parts of a silane coupling agent. The surface of the lining of the desulfurization tower body is coated with the graphene coating, so that corrosion of acid, alkali and other chemical media can be effectively resisted, the coating can stably run for a long time, the inner wall of the desulfurization tower is protected against corrosion and corrosion, and the service life of the desulfurization tower is prolonged.

The application discloses a preparation method of a multilayer composite crosslinking ceramic flow-casting green tape, which comprises the following steps: inputting slurry into multiple interval-mounted material boxes of a flow-casting machine, making the carrier tape pass through the material boxes and making the slurry in the material boxes be stacked on the carrier tape layer by layer to be flow-cast into a multilayer composite crosslinking flow-casting green tape; the slurry comprises silicon nitride ceramic powder, a sintering aid, a solvent, a binder, a dispersing agent, a plasticizer and a crosslinking agent; the plasticizer is at least one of cashew phenol Mannich tiglic acid ester, dibutyl phthalate, dimethyl phthalate and polyethylene glycol, and the dispersing agent is at least one of fish oil, castor oil and polyvinylpyrrolidone. The obtained green tape is uniform, smooth and flat, free of cracks, wrinkles and bubbles, has good toughness and high strength, is not easy to deform, and has adjustable thickness, and the problem that a crosslinking system ceramic green tape is difficult to flow thick is solved.

The application discloses a graphene functionalized reinforced modified polyester fiber and a preparation method thereof. The method comprises the following steps: 1) using dimethyl phthalate, ethylene glycol, a catalyst and a multi-component composite modifier as raw materials to polymerize functionalized modified polyester master batches; and 2) melting and spinning the functionalized modified polyester master batches to obtain graphene functionalized reinforced modified polyester fibers. The self-made multi-component composite modifier is used to prepare the functionalized modified polyester master batches, and then the polyester fibers are prepared, so that the product with excellent mechanical properties, flame-retardant properties, ultraviolet resistance and thermal-oxidative aging resistance can be obtained, the performance requirements of the polyester fibers in larger application scenarios can be better met, and the application prospect of the polyester fibers can be widened.

This invention provides a plasticizer, dimethyl phthalate, and its synthesis method, relating to the field of dimethyl phthalate. The synthesis method of the plasticizer dimethyl phthalate includes the following steps: esterification, neutralization and impurity removal, and removal of light components. In the esterification step, phthalic anhydride, methanol, and a solid acid catalyst are added to an esterification reactor. Under inert gas protection, the temperature is raised until the acid value of the material in the esterification reactor is less than 2 mg KOH / g. After filtration to recover the solid acid catalyst, the esterified material is obtained. This invention, by specifically overcoming the defects of existing dimethyl phthalate synthesis methods, and by utilizing the specific pH range of dimethyl phthalate, overcomes the defects in its downstream applications, thereby meeting specific downstream application requirements.

The invention belongs to the technical field of edible oil detection, and particularly relates to a preparation method of a standard sample for detecting the peroxide value of edible oil. According to the method, edible oil is firstly subjected to low-oxygen heating, then peroxide is prepared through a method of heating and oxygen introduction heating, a reverse micelle system is prepared and dispersed in vegetable oil, and dimethyl phthalate and diglyceride are added. The obtained standard sample is high in stability, the validity period is remarkably prolonged, and the standard sample is suitable for laboratory proficiency verification, internal quality control, method verification and other activities.

The invention relates to euphausia superba-sourced carboxylesterase, a coding gene and application thereof, and belongs to the field of enzymology, the amino acid sequence of the carboxylesterase is shown as SEQ ID NO.1, and the amino acid sequence of the gene for coding the carboxylesterase is shown as SEQ ID NO.2 or SEQ ID NO.3. The carboxylesterase can degrade a plasticizer PAEs, and the carboxylesterase can be used for degrading the plasticizer PAEs. And the plasticizer is at least one of dimethyl phthalate, diethyl phthalate, dipropyl phthalate and dibutyl phthalate, and has a very good application prospect.

The present application provides a method for preparing a flexible and degradable melt-blown filter material, which belongs to the technical field of preparing compositions based on polymer compounds of polyesters obtained from hydroxy acids on the main chain. Synthesis of thermoplastic polyether ester copolymers: using tetrabutyl titanate as a catalyst, 1,4-dimethyl phthalate and diol as molten raw materials, and then adding polyethylene glycol and an antioxidant to obtain a thermoplastic polyether ester block copolymer, polylactic acid chips, thermoplastic polyether ester block copolymers and hydrophobic nanoparticles are melt-extruded to obtain a composite masterbatch; the composite masterbatch is melt-extruded, melt-blown, and drawn to obtain a micro-nanoscale melt-blown filter material, and finally a corona electret melt-blown filter material. The present application is applied to the processing of melt-blown filter materials, which have the advantages of being degradable and flexible.

The invention discloses a hybridoma cell strain capable of secreting an anti-dimethyl phthalate monoclonal antibody and application of the hybridoma cell strain, and belongs to the field of food safety immunodetection. The hybridoma cell strain 3F7 capable of secreting the dimethyl phthalate cloned antibody is preserved in the China General Microbiological Culture Collection Center (CGMCC for short), the preservation date is 20250417, and the preservation number is 46516. The anti-dimethyl phthalate monoclonal antibody obtained by secretion of the cell strain is used for analyzing and detecting residual dimethyl phthalate in food safety detection. The anti-dimethyl phthalate monoclonal antibody cell strain obtained by the invention can be used for immunoassay detection, and has better detection sensitivity and specificity (the IC50 value is 26.6 ng / mL) on dimethyl phthalate. The achievement of the invention can be used for preparing an immunodetection kit and a colloidal gold test strip of dimethyl phthalate, and provides a powerful detection method and means for detecting the residual quantity of dimethyl phthalate in food such as fruit juice, milk, white spirit and the like.

The invention provides a water reducing agent as well as a preparation method and application thereof. The water reducing agent is formed by polymerizing a double-terminated esterified functional monomer and an allyl monomer, the double-end-capped esterified functional monomer is prepared from a single-end-capped esterified functional monomer and dimethyl phthalate through a transesterification reaction; the single-terminated esterified functional monomer is prepared from polyethylene glycol and methacrylic acid through esterification reaction. The water reducing agent does not adopt a polyether macromonomer, so that introduction of a polyether long side chain which is easy to perform physical adsorption and chemical intercalation is avoided, and dimethyl phthalate containing a benzene ring rigid structure is introduced into the water reducing agent, so that chemical intercalation of the water reducing agent in layered clay mineral can be better avoided; the tolerance of the water reducing agent to clay is further improved, the water reducing agent has excellent water reducing and slump retaining performance, and the flowability of concrete containing LC3 cement can be well improved. Concrete prepared from the water reducing agent disclosed by the invention has excellent flowability and slump loss resistance.

The invention discloses acinetobacter and application thereof, and relates to the field of microorganisms. The classification name of the acinetobacter is Acinetobacter sp.ZJT-18, the acinetobacter is preserved in the China Center for Type Culture Collection, and the preservation number of the acinetobacter is CCTCC NO: M 20242870. The acinetobacter provided by the invention has relatively good adaptability in environments with different pH values and temperatures, and has good degradation capability on various PAEs (Polyacrylamide) such as DMP (Dimethyl Phthalate), DEP (Diethyl Phthalate), DBP (Dibutyl Phthalate), BBP (Bibutyl Phthalate), DEHP (Diethylhexyl Phthalate) and DnOP (Dioctyl Phthalate).

The invention discloses a preparation method of a CuFe2O4-activated carbon composite material, which is used for developing a method for efficiently enriching trace pollutants in food and agricultural products by taking the CuFe2O4-activated carbon composite material as a fiber coating for solid-phase microextraction, and is used for enriching and detecting dimethyl phthalate (DMP). Meanwhile, the method can also be used for monitoring the degradation process and performance of DMP degraded by electro-Fenton. Technical support is provided for detection and treatment of DMP in the fields of food, agricultural products and environment, and the method has a practical application prospect.

The invention relates to the technical field of low stretch yarn, in particular to a semi-dull polyester low stretch yarn preparation method which sequentially comprises the following steps: raw materials of semi-dull polyester low stretch yarn comprise organic silicon polyester chips, flaky mica, aluminum oxide powder, polyoxypropylene and organic silicon polyether silicone oil according to the weight ratio of 1.9: 0.7: 2.0: 2.5: 0.7; the preparation method comprises the following steps: preparing polypropylene, organosilicon polyether silicone oil, polyethylene glycol, dimethyl phthalate and ethylene glycol according to a weight ratio of 0.05: 3.2: 3.5: 3.7: 3.6; the preparation method of the semi-dull polyester low stretch yarn sequentially comprises the following steps: step 1, preparing raw materials; step 2, pretreatment; step 3, spinning; step 4, spinning; and step 5, post-processing.

The invention provides sewage treatment equipment for dimethyl tetrahydrophthalate production and a use process of the sewage treatment equipment, and relates to the technical field of chemical wastewater treatment, the treatment equipment comprises a sewage inlet pipe, a sewage outlet pipe and a filter material conveying pipe, the sewage outlet pipe and the filter material conveying pipe are fixed together to form a herringbone pipeline, and the herringbone pipeline is provided with a water inlet pipe and a water outlet pipe; a treatment section pipeline is fixedly communicated between the top of the herringbone pipeline and the sewage inlet pipe, a filtering and cleaning assembly is arranged on the left side of the treatment section pipeline, and a collecting assembly is arranged on the right side of the treatment section pipeline. Sewage is rapidly filtered and separated in the flowing process, so that the treatment time is shortened, the overall sewage treatment efficiency is improved, the production process can be more rapidly carried out, the retention and accumulation of the sewage are avoided, and the risk of chemical reaction or peculiar smell generation possibly caused by retention is reduced.

The application provides a process for continuously producing cyclohexane dicarboxylic acid dimethyl ester, comprising: S1. feeding a raw material stream comprising hydrogen, dimethyl phthalate and dimethyl cyclohexane dicarboxylate into a reactor from a bottom inlet of the reactor, and obtaining a post-reaction stream at a top outlet of the reactor; S2. performing gas-liquid separation on the post-reaction stream to obtain circulating hydrogen and a liquid phase stream; S3. circulating part of the circulating hydrogen to the reactor, and removing the remaining part from the reaction zone; S4. circulating part of the liquid phase stream to the reactor, and collecting the remaining part as a product. The application improves the conversion rate of dimethyl phthalate and the selectivity of the target product dimethyl cyclohexane dicarboxylate by improving the traditional feeding mode.

The invention relates to a regenerated DMT decoloration recovery method and system, and the method comprises the following steps: a first purification tank, a second purification tank and a third purification tank are sequentially connected in series; dimethyl phthalate to be recycled is added into a first purification tank, a second purification tank and a third purification tank; monitoring the real-time temperatures of the dimethyl phthalate in the first purification tank, the second purification tank and the third purification tank, and heating the dimethyl phthalate in the first purification tank, the second purification tank and the third purification tank when the real-time temperatures of the dimethyl phthalate in the first purification tank, the second purification tank and the third purification tank are lower than a first preset value; compared with the prior art, the method has the advantages that the material flow direction is flexibly controlled according to the dimethyl phthalate purification degree; when the purifying agent of any one purification tank is replaced, normal work of the other two purification tanks is not affected, continuous decoloration can be achieved, efficiency can be improved, and dimethyl phthalate can be prevented from being converted into a solid state.

The utility model relates to a multi-temperature-zone mosquito control tablet and an electric mosquito repellent. The multi-temperature-zone mosquito control tablet comprises a sheet-shaped tablet base material made of a hydrophilic material, a first medicament area is arranged in the center area of the tablet base material, and second medicament areas are arranged on the two sides of the tablet base material. The first medicament area is loaded with pyrethroid, and the second medicament area is loaded with a repellent medicament; the repellent agent is prepared from paragliptin, dimethyl phthalate, methyl nonyl ketone and deet. According to the utility model, different repellents can be combined and diffused, so that the composite mosquito control effect is realized; in addition, only the first medicament area needs to be heated, so that the energy consumption of the electric mosquito-repellent incense matched with the first medicament area is not increased.

The present application relates to the technical field of pest control, and further provides a method for extracting and identifying locust sex pheromone, which comprises the following steps: extracting locust volatile matter, and identifying the main components of the volatile matter as (Z)-2-pentene-1-ol, benzaldehyde, 2-ethyl-1-hexanol, 3-ethyl-benzaldehyde, 2-hexyl-1-dodecanol, 2-methoxyphenol, 4-ethyl-acetophenone, butyl benzoate, phenol, 2-ethyl-4,5-dimethylphenol, dimethyl phthalate, 2,4-di-tert-butylphenol, methyl hexanoate, isooctyl phthalate and dibutyl phthalate. Experiments show that dibutyl phthalate (DBP) as locust sex pheromone has a good attraction to male locusts, and can be applied to the biological control of locusts. The present application provides a new method for the biological control of locusts, and has a wide application prospect.

The invention provides anti-mosquito antibacterial perspiration ice feeling liquid for a mask and a preparation method of the anti-mosquito antibacterial perspiration ice feeling liquid. The method comprises the following steps: weighing active ingredients in a specified mass ratio; the preparation method comprises the following steps: dissolving deet, dimethyl phthalate, paragliptin and lemon eucalyptus oil in part of a solvent, and ultrasonically stirring to form a first solution; grinding probiotics and other components into fine powder, and adding the fine powder into the residual solvent to form a second solution; and finally, mixing the two solutions, adding the moisture-absorbing and sweat-releasing auxiliary agent, the ice-feeling silicone oil and the menthol, and uniformly stirring to obtain a finished product. According to the method, the uniformity and the effect of the liquid are ensured by accurately controlling the mixing proportion and the stirring condition of each component. The anti-mosquito, antibacterial, perspiration and ice feeling effects can be effectively provided, and the comfort and practicability of the mask are enhanced.

Disclosed is a method for treating the product stream from a polyester methanolysis depolymerization process wherein the product stream includes dimethyl terephthalate and one or more side species selected from the group consisting of dimethyl phthalate, dimethyl isophthalate, bisphenol-A, an adipic acid diester and colorants. The method includes a) hydrogenating said dimethyl terephthalate to form one or more of dimethyl 1,4-cyclohexanedicarboxylate and 1,4-cyclohexanedimethanol; and (b) hydrogenating one or more of said one or more side species of said product stream. A method for depolymerization of polyester is also described.

The invention relates to an easy-to-wash mosquito-repellent spray, which is prepared by taking a composition of deet, mosquito repelling alcohol, paragliptin, dimethyl phthalate and citronellal as a main component of a medicament, taking lauryl alcohol polyoxyethylene ether as a surfactant and taking medical alcohol as a solvent, is simple in preparation process, easy to wash, free of greasy feeling in contact with skin and long in mosquito-repellent time, ensures the product consistency, and can be used for preparing a mosquito-repellent liquid. The daily life requirements are met.