40 results about "Dioctyl adipate" patented technology

The invention discloses an anti-freezing PE (polyethylene) film, a composite film of the anti-freezing PE film and a related preparation method, relates to the field of packaging films, and aims to solve the problem of low freezing resistance and puncture resistance in the prior art. Comprising anti-freezing layer components: low-density polyethylene, high-density polyethylene, metallocene linear low-density polyethylene resin, cold-resistant PA66 resin, composite phosphate, olefin block copolymer resin, a modified nanoscale silicon oxide coupling agent and a nanoparticle toughening agent, and barrier layer components: low-density polyethylene, linear low-density polyethylene and high-density polyethylene. The toughening heat-sealing layer comprises the following components: low-density polyethylene, sarin resin, metallocene linear low-density polyethylene resin, EVA (Ethylene Vinyl Acetate) modified bonding resin, a slipping agent, a nanoparticle toughening agent, a modified nanoscale silicon oxide coupling agent, dioctyl adipate and an antioxidant. The composite material can resist-38 DEG C ultra-low temperature freezing, and is puncture-resistant, cold-resistant and excellent in barrier property.

The invention relates to a perovskite solution, a preparation method and application thereof, and a perovskite battery. The perovskite solution comprises a perovskite precursor and an additive, the additives are dibasic acid ester, nylon acid diisobutyl ester, iodobenzene diacetic acid, diisopropanolamine, diethanol amine, diisodecyl adipate, dibutyl adipate, dimethylacetamide, dioctyl adipate, diisobutyl glutarate, dimethyl sebacate, diisobutyl adipate, diisobutyl succinate and triethyl citrate; and at least one of tributyl citrate. According to the perovskite solution disclosed by the invention, the bromide ion-free or low-bromide ion perovskite precursor can form a black-phase film with good stability by adding the additive, so that the photoelectric conversion efficiency of a perovskite photovoltaic device is improved.

The invention discloses an anti-yellowing PVB (Polyvinyl Butyral) adhesive for laminated glass and a preparation method thereof, and relates to the technical field of adhesives. The yellowing-resistant PVB glue for the laminated glass has the advantages that the yellowing resistance is high; the modified PVB / nano silicon dioxide composite material is prepared from the following raw materials in parts by weight: 55 to 65 parts of modified PVB resin, 4 to 6 parts of modified nano silicon dioxide, 15 to 20 parts of dioctyl adipate, 0.5 to 1 part of a compound antioxidant, 0.3 to 0.8 part of an ultraviolet absorbent UV-327, 0.2 to 0.5 part of a silane coupling agent KH-560, 0.3 to 0.6 part of ethylene bis stearamide, 0.1 to 0.3 part of 2-benzimidazole methyl carbamate, 3 to 5 parts of tris (1-chloro-2-propyl) phosphate and 0.1 to 0.3 part of nano titanium dioxide. 5 to 8 parts of isopropanol; 0.8 to 1.2 parts of polycarbodiimide. The special modified PVB resin and the nano silicon dioxide are matched with the auxiliary agents such as the compound antioxidant, the anti-yellowing performance of the PVB glue for the laminated glass is remarkably improved through precise process preparation, the components have a synergistic effect, the process is controllable, the product performance is stable, and the cohesiveness is good.

The invention belongs to the technical field of wear-resistant materials, and particularly relates to a wear-resistant flexible material for an LED lamp strip and a preparation method of the wear-resistant flexible material. The invention discloses a PVC (polyvinyl chloride) material which is prepared from the following raw materials in parts by mass: 80-110 parts of PVC resin, 2-4 parts of a methyl methacrylate-butadiene-styrene copolymer, 0.5-1.5 parts of methyl vinyl silicone rubber, 0.3-0.5 part of a maleic anhydride grafted polyethylene octylene elastomer, 0.5-1 part of modified nano silicon dioxide, 2-3 parts of epoxidized soybean oil, 1-2 parts of dioctyl adipate, 3-5 parts of a heat stabilizer and 0.3-0.5 part of butyl stearate. 0.1-0.3 part of an antioxidant and 1-3 parts of an acrylate processing aid. The PVC resin is used as a base material, the flexible silicone rubber is used as an auxiliary material, material performance optimization is achieved through cooperation of the raw materials such as the plasticizer and the heat stabilizer, and the performance such as flexibility, abrasion resistance and heat stability of the material is guaranteed.

The invention belongs to the technical field of asphalt production, and discloses high-elasticity modified asphalt which comprises a matrix, a plasticizer and a stabilizer, the plasticizer is selected from at least one of dioctyl phthalate, diethyl sebacate, diethyl adipate, dioctyl adipate, alkyl sulfonate and furfural extract oil; the stabilizer is selected from at least one of sulfur, tetramethylthiuram disulfide, maleic anhydride and m-phenylenediamine, the swelling capacity of SBS in the asphalt is improved to a certain extent through the plasticizer, and meanwhile, the stabilizer is used for resisting oxidative denaturation of the asphalt in the long-term use process; in addition, the invention further discloses a preparation method of the high-elasticity modified asphalt.

The invention relates to the technical field of vehicle emergency rescue, in particular to a vehicle silting and detrapping auxiliary agent and a using method thereof. The auxiliary agent is prepared from 60 to 70 parts of polyurethane prepolymer, 5 to 8 parts of epoxy acrylate, 4 to 6 parts of fluorine-silicon composite water repellent agent, 3 to 5 parts of intercalated nano kaolin, 3 to 5 parts of low-temperature foaming agent HFO-1234ze, 2 to 4 parts of chemical foaming system, 4 to 6 parts of copper-plated carbon fiber short filament, 2 to 3 parts of boron modified silicon dioxide aerogel, 2 to 4 parts of temperature-sensitive phase change microcapsule and 1 to 2 parts of dioctyl adipate. A double-stage puffing process is realized by forming a puffing matrix framework through a polyurethane prepolymer and epoxy acrylate and combining a low-temperature physical foaming agent and a chemical foaming system. Meanwhile, the copper-plated carbon fiber short filaments are directionally arranged, so that the tensile strength of the expanded body is remarkably improved, the technical problems that a traditional escape material is low in expansion speed and insufficient in mechanical property are solved, stable support can be provided for a silted vehicle within extremely short time, the vehicle is effectively prevented from further sinking, and the escape efficiency is remarkably improved.

The invention discloses a golf ball outer layer material composition, a golf ball and a manufacturing method of the golf ball, and relates to the technical field of ball sports equipment. The invention relates to an outermost layer material composition of a golf ball. The outermost layer material composition comprises 60-70 parts of thermoplastic polyurethane; 7-12 parts of a composite flow modifier; 4-8 parts of an interface enhancing system; 0.3 to 0.8 part of an antioxidant; 2-4 parts of color master batch; wherein the composite flow modifier is a compound of dioctyl adipate and polycaprolactone in a mass ratio of (2-3): 1; the interface reinforcing system comprises 3-5 parts of maleic anhydride grafted polyolefin elastomer and 1-3 parts of core-shell structure coated particles; the core-shell structure coated particle takes nano silicon dioxide as a core and an ethylene-vinyl acetate copolymer oligomer as a shell, and the mass ratio of the core to the shell is 1: (2-3). Through the dual synergistic effect of the composite flow modifier and the interface reinforcing system, the problems of flow eccentricity and interlayer bonding of the outermost layer material of the golf ball are systematically solved.

The invention discloses a copper core cross-linked polyethylene insulated steel tape armored polyvinyl chloride sheath flame-retardant low-temperature-resistant cable and a processing technology, and relates to the technical field of flame-retardant low-temperature-resistant cables.The flame-retardant low-temperature-resistant cable is sequentially provided with a composite flame-retardant conductor layer, a low-temperature modified insulating layer, an armored structure layer and a sheath functional layer from inside to outside, and the composite flame-retardant conductor layer comprises a copper core conductor; the surface of the copper core conductor is coated with a halogen-free flame-retardant wrapping tape, the halogen-free flame-retardant wrapping tape is prepared by blending a nano magnesium hydroxide and rare earth oxide composite flame retardant and a silane cross-linking agent, the mass ratio of the nano magnesium hydroxide to the rare earth oxide composite flame retardant is 8: 2, the flame retardant proportion of the halogen-free flame-retardant wrapping tape is 35 wt%, and the flame retardant proportion of the silane cross-linking agent is 35 wt%. The low-temperature modified insulating layer is prepared by adding 15 wt% of an ethylene-vinyl acetate copolymer flexibilizer and 10 wt% of a cold-resistant plasticizer dioctyl adipate into a cross-linked polyethylene base material, the glass transition temperature is less than or equal to-55 DEG C, the armored structure layer is double-layer gap type steel tape armoring, and the inner layer of the double-layer gap type steel tape armoring is a galvanized steel tape.

The present invention relates to the technical field of adhesives, and discloses a preparation method of an antibacterial waterproof adhesive and its application in shoe materials, wherein component A comprises 100 parts by weight of polyether polyol, 19-25 parts by weight of diisocyanate, and 0.15-0.18 parts by weight of dibutyltin dilaurate; component B comprises 75-88 parts by weight of polyether polyol, 3-6 parts by weight of chain extender, 5-30 parts by weight of fluorine-containing quaternary ammonium salt antibacterial agent, and 12-20 parts by weight of dioctyl adipate; the fluorine-containing quaternary ammonium salt antibacterial agent of the present invention contains a strongly hydrophobic hexafluoroisopropylidene biphenyl structure, which is conducive to reducing the water absorption rate of the adhesive film, thereby improving water resistance and waterproof performance. In addition, the fluorine-containing quaternary ammonium salt antibacterial agent has good compatibility with the polyurethane adhesive, is evenly dispersed in the film matrix, and imparts excellent antibacterial properties to the adhesive.

The invention discloses modified PVC (polyvinyl chloride) for medical packaging and a preparation method. The formula of the modified PVC comprises PVC resin powder, MBS (methyl methacrylate-butadiene-styrene), ACR (acrylate), an external lubricant, an internal lubricant, a methyl tin stabilizer, biquaternary ammonium salt, EVOH (ethylene vinyl alcohol), dilauryl thiodipropionate, dioctyl adipate and aramid fiber. The preparation method comprises the following steps: step 1, preparing materials; 2, preparing biquaternary ammonium salt; step 3, mixing and pretreatment; step 4, performing multi-layer co-extrusion extension; step 5, molding and curing; and step 6, inspecting and packaging. The biquaternary ammonium salt is used as an antibacterial additive to be added into the PVC material, the biquaternary ammonium salt has broad-spectrum antibacterial property and can effectively kill or inhibit growth of various bacteria, fungi and viruses, the antibacterial activity of the biquaternary ammonium salt is mainly derived from cationic properties of the biquaternary ammonium salt, the cations can interact with negative charges on microbial cell membranes, and the antibacterial activity of the biquaternary ammonium salt is improved. Therefore, the modified PVC material is endowed with lasting antibacterial performance.

The invention relates to the field of ceramics for semiconductors, and discloses aluminum nitride ceramic tape casting slurry, a high-elongation aluminum nitride ceramic green tape and a preparation method and application thereof.The aluminum nitride ceramic tape casting slurry is prepared from, by mass, 70-75 parts of aluminum nitride raw powder and 25-30 parts of organic solvent through mixing and ball milling, the dispersing agent accounts for 0.5%-0.8% of the mass of the aluminum nitride raw powder, the binder accounts for 3%-10% of the mass of the aluminum nitride raw powder, the composite preparation accounts for 1%-9% of the mass of the aluminum nitride raw powder, and the composite preparation comprises dioctyl phthalate, dibutyl phthalate and dioctyl adipate according to the mass ratio of (2-4): (1-2): (1-2). By adopting the composite preparation with a specific ratio, the uniformity and flowability of the tape-casting slurry can be remarkably improved, the surface defects of a green belt are reduced, the elongation rate of the tape-casting slurry is up to 37%, the processing requirements of tubular curved surface structure aluminum nitride ceramic parts can be met, the cracking risk in the glue discharging and sintering process is reduced, and the service life of the tape-casting slurry is prolonged. The method can be widely applied to preparation of special-shaped ceramic elements for semiconductor equipment.

This application relates to a tensile PVC film and its preparation method, comprising the following raw materials in parts by weight: 100-140 parts by weight of PVC resin, 35-55 parts by weight of dioctyl terephthalate, 3-8 parts by weight of dioctyl adipate, 3-6 parts by weight of zinc-calcium composite stabilizer, 4-6 parts by weight of β-hydroxyethyl acrylate / methylhexahydrophthalic anhydride modified epoxidized soybean oil, 15-25 parts by weight of hydrogenated ricinoleic acid modified nano-calcium carbonate, 8-12 parts by weight of heavy calcium carbonate, 3-5 parts by weight of titanium dioxide, and 0.01-0.03 parts by weight of colorant. This PVC film exhibits good tensile strength and elongation at break, with a longitudinal tensile strength >28.5 MPa, a transverse tensile strength >24 MPa, a longitudinal elongation at break >285%, and a transverse elongation at break >315%.

The invention provides a high-strength flexible composite furniture adhesive and a preparation method thereof, belongs to the technical field of adhesives, and solves the technical problems that air is easily mixed in the stirring process of an existing stirring device, so that bubbles are doped in materials, and the stirring effect is influenced. The high-strength flexible composite furniture adhesive is prepared from a mixed solution and inorganic powder, and the mixed solution is prepared from, by mass, 15 parts of a blender, 40 parts of vinyl acetate-ethylene copolymer emulsion, 10 parts of a water-based isocyanate cross-linking agent, 20 parts of dioctyl adipate, 10 parts of silica sol and 5 parts of citric acid. The inorganic powder comprises the following components in parts by mass: 3 parts of light calcined magnesia, 3 parts of analytically pure magnesium oxide and 3 parts of calcium silicate. The stirring and mixing device has the advantages that bubbles in the composite adhesive are subjected to defoaming treatment in the stirring and mixing process, and the structural filling degree of the composite adhesive is improved.

The invention belongs to the technical field of high polymer materials, and particularly discloses an anti-ultraviolet aging UV highlight blister film and a preparation method thereof. Comprising the following components in parts by weight: 100 parts of matrix resin, 16-22 parts of a plasticizer, 10-15 parts of an ethylene-vinyl acetate copolymer, 8-12 parts of modified needle-like wollastonite powder, 4-8 parts of POE (Polyolefin Elastomer) grafted glycidyl methacrylate, 2-4 parts of dioctyl adipate, 1-2 parts of a cross-linking agent, 1-2 parts of a stabilizer, 0.5-1.2 parts of a UV (Ultraviolet) absorbent, 0.8-2 parts of a photoinitiator and 0.4-1 part of an antioxidant. The matrix resin comprises polyvinyl chloride resin and fluorinated ethylene propylene in a mass ratio of (88-92): (8-12). The plastic uptake film disclosed by the invention has an excellent anti-ultraviolet aging effect.

The invention provides high-stability organic cooling liquid and a preparation method thereof, and relates to the technical field of cooling liquid. The organic cooling liquid is prepared from the following raw materials in parts by weight: 40 to 45 parts of ultrapure water, 50 to 55 parts of ethylene glycol, 0.3 to 0.5 part of methylbenzotriazole, 0.8 to 1 part of isocaprylic acid, 0.5 to 1 part of tetradecanedioic acid, 0.2 to 0.5 part of disodium ethylene diamine tetraacetate, 0.08 to 0.15 part of phenothiazine, 1.0 to 1.5 parts of triethanolamine, 0.1 to 0.2 part of polyether modified siloxane and 5.5 to 6.8 parts of a polyester mixture. The polyester mixture is prepared by mixing dioctyl adipate, glycerol and tributyl citrate, and the polyester mixture is obtained. The preparation method of the high-stability organic cooling liquid comprises the following steps: preparing the polyester mixture, adding the polyester mixture, adding the corrosion inhibitor, and adding the auxiliary agent. The high-stability organic cooling liquid disclosed by the invention has the advantages of excellent stability, relatively low corrosivity and relatively low conductivity.

The invention discloses a flame-retardant and low-smoke floor and a preparation process, and relates to the technical field of flame-retardant floors. Comprising a base material layer; a stable layer, a flame-retardant layer, a decorative layer and a wear-resistant layer are respectively arranged on the base material layer, and a backing layer is arranged on the lower side of the base material layer; the flame-retardant layer comprises the following components in parts by weight: 100 parts of a PVC base material; the composite flame retardant is prepared by compounding aluminum hydroxide and expanded graphite according to a ratio of (1: 0.5)-(1: 2); 3-8 parts of a smoke suppressant selected from one of zinc molybdate or a mixture of zinc molybdate and ammonium octamolybdate; the low-temperature plasticizer is formed by compounding diisononyl phthalate and dioctyl adipate according to the ratio of (2: 1) to (3: 1); 2-5 parts of a heat stabilizer; the wear-resistant layer is a nano silicon dioxide composite layer, the thickness of the nano silicon dioxide composite layer is 50-200nm, and the concentration of nano silicon dioxide in the coating is 5-15wt%, so that the technical problem that flexibility and flame retardance in a low-temperature environment cannot be considered at a low temperature is solved.

The invention relates to the technical field of civil engineering materials, in particular to an asphalt pavement crack trenchless grouting material and a preparation method thereof.The asphalt pavement crack trenchless grouting material comprises a high-permeability chemical expansion gel grouting material, and mineral powder is added into the high-permeability chemical expansion gel grouting material; dioctyl adipate is added into the high-permeability chemical expansion gel grouting material, and sodium hydroxide is added into the high-permeability chemical expansion gel grouting material. According to the device, in the movement process of a first moving plate, a scraping ring can scrape off raw materials attached to the inner wall of the material box, the raw materials are prevented from remaining and caking on the wall face, when a cylindrical cam rotates, through a turn-back groove formed in the surface, a driven rod drives a second moving plate to do reciprocating rectilinear motion under limiting of an outer limiting frame, and therefore the raw materials are prevented from being scraped off. And the arc-shaped ring and the elastic ball are driven to continuously knock the surface of the discharging pipe, raw material attachment is avoided, and the construction cost is reduced by reducing raw material loss.

This invention discloses a non-phosphorus ethylene cracking furnace coking inhibitor, its preparation method, and its application, applicable to the field of ethylene production technology. The inhibitor comprises the following components by weight percentage: dimethyl dithioaminodiethyl ester (7-32%), tributyl citrate (25-45%), dioctyl maleate (15-35%), pentaerythritol tetraisostearate (10-25%), sorbitan monooleate (5-20%), dioctyl adipate (3-15%), and butyl stearate (1-10%), as well as an organic solvent (a mixture of ethylene glycol ethyl ether, ethylene glycol butyl ether, propylene glycol methyl ether, isopropanol, and n-butanol), and is completely free of phosphorus. This inhibitor effectively prevents catalytic coking and inhibits gas-phase polymerization reactions through a dual mechanism of "physical shielding + chemical inhibition." Compared with existing coking suppression methods, this invention has higher coking suppression efficiency, less equipment corrosion, excellent storage stability, and environmental safety, making it suitable for various ethylene plants.

The invention belongs to the technical field of high polymer materials, and particularly relates to a nylon composite material as well as a preparation method and application thereof. The nylon composite material is prepared from the following raw materials in parts by weight: 50-80 parts of nylon resin, 10-30 parts of a reinforcing agent, 5-15 parts of a toughening agent, 5-20 parts of a flame retardant, 0.5-3 parts of a lubricating agent, 0.1-2 parts of an antioxidant, 3-8 parts of a compound functional intermediate product I, 2-10 parts of inorganic filler, 4-15 parts of a compound functional intermediate product II and 2-6 parts of a compound functional intermediate product III, the compound functional intermediate product I is prepared from the following raw materials in parts by weight: 10 to 20 parts of sulfonated polybenzimidazole, 5 to 15 parts of montmorillonite and 1 to 5 parts of gamma-aminopropyltriethoxysilane; the compound functional intermediate product II is prepared from the following raw materials in parts by weight: 15 to 30 parts of hydrogenated styrene-butadiene block copolymer, 5 to 15 parts of dioctyl adipate and 2 to 8 parts of compatilizer; the compound functional intermediate product III is prepared from the following raw materials in parts by weight: 5 to 12 parts of nano zinc oxide, 2 to 6 parts of graphene and 1 to 4 parts of polydopamine.

The invention provides a polyvinyl chloride composition, a festoon optical cable containing the same and a preparation method of the festoon optical cable, and the polyvinyl chloride composition comprises the following components in parts by weight: 100 parts of polyvinyl chloride resin, 60-90 parts of a plasticizer, 5-10 parts of a charring agent and 30-50 parts of a flame retardant, the polymerization degree of the polyvinyl chloride resin is greater than or equal to 1700; the plasticizer comprises dioctyl terephthalate, and further comprises at least one of an ethylene-n-butyl acrylate-carbon monoxide terpolymer, diisooctyl sebacate or dioctyl adipate. The polyvinyl chloride composition is used for preparing an inner sheath of an optical cable, the low temperature resistance and flame retardant property of the optical cable can be improved, and meanwhile it is guaranteed that the optical cable has good flexibility and wear resistance.

The application relates to the technical field of modified asphalt, in particular to a high-performance modified asphalt mixture and a preparation method thereof.A high-performance modified asphalt mixture comprises the following raw materials in mass fractions: modified asphalt 5.0-7.5 parts, SBS grafted maleic anhydride 0.40-0.80 parts, polycaprolactone 0.15-0.30 parts, rubber oil 0.30-0.75 parts, dioctyl adipate 0.045-0.105 parts, stabilizer 0.01-0.015 parts, polyester fiber 0.25-0.45 parts, aggregate 79.5-89.0 parts and filler 7.0-12.5 parts; through optimization of the raw material composition ratio, the high-temperature stability and water stability of the pavement can be improved, the pavement has good road performance and fatigue resistance, the fatigue resistance of the asphalt pavement under the action of vehicle load can be remarkably improved, and the service life of the pavement is prolonged.

The invention relates to the technical field of power capacitors, and particularly discloses environment-friendly oil for a power capacitor and a preparation method and application of the environment-friendly oil. The environment-friendly oil for the power capacitor comprises dioctyl adipate, benzyl toluene, diphenylethane, an organic silicon modifier and an antioxidant, and balance of dielectric property, gassing property, kinematic viscosity and stability is comprehensively realized through compounding of the components. Meanwhile, the scheme takes dioctyl adipate with high biodegradation rate as a main component, does not contain polycyclic aromatic hydrocarbon and halogen elements, has excellent environment-friendly characteristic, and meets the environment-friendly use requirement of power equipment. Besides, the invention further provides a preparation method of the environment-friendly oil for the power capacitor, the method adopts a combined process of vacuum degassing, ultrasonic dispersion, high-shear dispersion and slow cooling, the dissolved gas amount of the environment-friendly oil is remarkably reduced, the gassing performance is further optimized, and the service life of the environment-friendly oil is prolonged. The problem that the dielectric property, gassing property, kinematic viscosity and stability of existing environment-friendly oil are difficult to balance is solved.

The invention provides an anti-skid and anti-aging swimming pool adhesive film and a preparation method thereof, and belongs to the technical field of swimming pool adhesive films. The swimming pool adhesive film is prepared from modified polyvinyl chloride, filler, cyclohexane-1, 2-dicarboxylic acid diisononyl ester, dioctyl adipate, paraffin oil, a barium-zinc liquid stabilizer, phosphite ester and organic pigment, and the filler is modified zinc oxide loaded with multiple metal ions; through mutual cooperation and synergistic effects of the components, the prepared swimming pool adhesive film has good mechanical properties, aging resistance and the like, can achieve slow-release sterilization effects indoors and under illumination, reduces use of a chlorinated disinfectant, improves water quality safety, reduces swimming pool maintenance cost, and is beneficial to application of a polyvinyl chloride material.

The application relates to the technical field of cables, and particularly discloses a low-temperature-resistant flexible cable and a preparation method thereof. The low-temperature-resistant flexible cable comprises a conductor, an insulation layer, a cabling unit, a shielding layer and an outer sheath which are sequentially arranged, and the raw material of the outer sheath comprises the following components in parts by weight: 100 parts of PVC resin, 12-25 parts of powder nitrile rubber, 5-15 parts of polyether TPU, 6-18 parts of maleic anhydride grafted POE, 8-18 parts of dioctyl sebacate, 6-15 parts of dioctyl adipate, 5-15 parts of polyester plasticizer, 3-8 parts of epoxy soybean oil, 4-12 parts of silane modified nano calcium carbonate, 3-6 parts of calcium-zinc composite stabilizer, 0.2-0.8 parts of antioxidant, 0.8-3 parts of matt black masterbatch, 0.5-2 parts of lubricant and 0.5-2 parts of silicone masterbatch. The cable in the application still has good flexibility in a low-temperature environment.

The invention provides a cementation type microcapsule wall-fixing agent, a preparation method thereof and a water-based drilling fluid. The cementation type microcapsule wall fixing agent comprises a core material and a shell material, the core material is modified epoxy resin, and the shell material is quaternary ammonium salt cation modified urea resin; a modifier used by the modified epoxy resin comprises one or a combination of more than two of phthalate, terephthalate, diisooctyl phthalate, epoxidized soybean oil, dioctyl adipate and dioctyl azelate. The cementation type microcapsule wall fixing agent has good adsorption performance and cementation performance on rocks, and well wall stability can be improved.

The invention relates to a cold-resistant cable material as well as a preparation method and application thereof. The cold-resistant cable material is prepared from the following raw materials in parts by weight: 65-75 parts of chlorinated polyethylene resin, 5-15 parts of polyethylene, 5-10 parts of dioctyl adipate, 10-15 parts of a flame retardant and 0.5-1 part of a cross-linking agent. The cold-resistant cable material provided by the invention has the characteristics of good mechanical property, good flexibility, good thermal aging resistance, low temperature resistance of-60 DEG C, good torsion resistance, good voltage breakdown resistance, good oil resistance and good flame retardance.

The invention relates to a high-speed rail door sealing strip material with low heat generation and high compressive deformation resistance and a preparation method of the high-speed rail door sealing strip material. The preparation method comprises the following steps: plasticating hydrogenated nitrile rubber, ethylene propylene diene monomer and maleic anhydride grafted polyolefin elastomer in an internal mixer; then adding white carbon black, a silane coupling agent, hydrogenated C9 petroleum resin, p-tert-butylphenol acetylene resin, dioctyl adipate and part of the activating agent, mixing, discharging rubber, and cooling to obtain a section of master batch; adding the first-stage rubber master batch, the chopped aramid fibers and the residual activating agent into the internal mixer for mixing, then adding the anti-aging agent for mixing, discharging rubber and cooling to obtain second-stage rubber master batch; adding the second-stage rubber master batch into an open mill, sequentially adding dicumyl peroxide, an assistant cross-linking agent and an internal release agent after roller coating, performing rapid thin-passing and triangular package forming to obtain final mixed rubber, and performing vulcanization molding on the final mixed rubber to obtain the sealing strip material. According to the sealing strip material, the hydrogenated C9 petroleum resin is added as a molecular lubricant, and the p-tert-butylphenol acetylene resin is added as a rigid crosslinking point, so that the sealing strip material has low heat generation and high pressure change resistance.

The present invention provides a high-stability organic coolant and a preparation method thereof, relating to the technical field of coolants. The organic coolant comprises, by weight, 40-45 parts of ultrapure water, 50-55 parts of ethylene glycol, 0.3-0.5 parts of tolyltriazole, 0.8-1 parts of isooctanoic acid, 0.5-1 parts of tetradecanedioic acid, 0.2-0.5 parts of disodium ethylenediaminetetraacetic acid, 0.08-0.15 parts of phenothiazine, 1.0-1.5 parts of triethanolamine, 0.1-0.2 parts of polyether-modified siloxane, and 5.5-6.8 parts of a polyester mixture. The polyester mixture is prepared by mixing dioctyl adipate, glycerol, and tributyl citrate. The preparation method of the high-stability organic coolant includes the steps of preparing the polyester mixture, adding the polyester mixture, adding a corrosion inhibitor, and adding an additive. The high-stability organic cooling liquid of the present invention has excellent stability, low corrosivity and low electrical conductivity.

The present application discloses an impermeable concrete and a preparation process thereof, and relates to the field of concrete. The raw materials of an impermeable concrete include: 380-460 parts of cement, 120-200 parts of fly ash, 650-800 parts of sand, 1000-1200 parts of stone, 10-20 parts of water reducer, 50-70 parts of expansion agent, 50-65 parts of modified nano-silicon dioxide, 12-20 parts of composite fiber, and 140-200 parts of water; the modified nano-silicon dioxide raw materials include: 58-70 parts of nano-silicon dioxide, 12-18 parts of silane coupling agent, 2-5 parts of sodium silicate, and 180-240 parts of deionized water; the The composite fiber consists of modified polyvinyl alcohol fiber, glass fiber and steel fiber, wherein the modified polyvinyl alcohol fiber raw materials include 36-48 parts of polyvinyl alcohol fiber, 1.7-3.5 parts of dioctyl adipate, 3-5 parts of silane coupling agent, 45-68 parts of ethanol, 1-3 parts of sodium persulfate, 12-18 parts of alkyl acid polyoxyethylene ether, 35-49 parts of deionized water and 7-13 parts of polyethylene glycol; by modifying the nano-silica and polyvinyl alcohol fiber, the impermeability, crack resistance and freeze-thaw resistance of the concrete are further improved.