1999 results about "Antioxidant" patented technology

The invention belongs to the field of plastic product production, and particularly relates to a composite material for preparing a textile dyeing tube. The composite material mainly comprises the following components in parts by weight: 10 parts of PET resin, 10 parts of ASA resin, 1-6 parts of matt master batches, 1-3 parts of titanium dioxide, 1-2 parts of rosin, 0-1.5 parts of an antioxidant, 0-1 part of a fire retardant and 1-2 parts of a lubricating agent, wherein titanium dioxide is rutile titanium dioxide. Compared with the prior art, the components are good in compatibility; the molded product has excellent physical and mechanical properties, low glossiness, high strength (caused by titanium dioxide) and good tenacity, and is suitable for injection molding of plastic products; the metallic luster caused by titanium dioxide can be reduced; the noise can be reduced; titanium dioxide can be used for disinfecting under irradiation of an ultraviolet lamp; the composite material is very convenient; and the lubricating agent is added, so that the surface is relatively smooth.

The invention belongs to the technical field of high polymer materials, and particularly relates to a PVB (Polyvinyl Butyral) film and a preparation method thereof. The PVB film provided by the invention is prepared from the following components in parts by mass: 100 parts of PVB resin, 33 to 36 parts of triethylene glycol di-2-ethylhexoate, 7 to 9 parts of integrated anti-radiation toughening filler, 1 to 2 parts of organic montmorillonite, 0.8 to 1.2 parts of composite coupling agent, 0.5 to 1 part of ultraviolet light absorber, 0.6 to 0.8 part of antioxidant and 0.8 to 1 part of heat stabilizer. The integrated anti-radiation toughening filler adopts a core-shell structure, the anti-radiation core is composed of bismuth oxide and tungsten oxide according to the mass ratio of 3: 1, and the elastic coating layer is maleic anhydride grafted modified POE. The preparation method comprises the steps of pre-dispersion treatment, component mixing, melt extrusion, film casting, graded cooling, two-way stretching and the like. Through the core-shell structure design of the integrated anti-radiation toughening filler and the optimized processing technology, the anti-radiation performance and the toughening performance are synergistically improved, and the prepared film has the advantages of excellent anti-radiation effect, high toughness and good transparency.

The invention provides a low-smoke halogen-free flame-retardant cable material and a preparation method thereof, and belongs to the field of cable materials. The low-smoke halogen-free flame-retardant cable material is prepared from the following chemical components: 32 to 40 parts of nitrile rubber, 22 to 27 parts of natural rubber, 8 to 12 parts of benzoxazole-siloxane copolymer containing phosphate dynamic bonds, 13 to 15 parts of core-shell-sheath three-stage structure flame retardant, 4 to 6 parts of hexaphenoxy cyclotriphosphazene modified carbon nanotubes, 2 to 3 parts of europium-doped mesoporous cerium dioxide and 3 to 4 parts of nano zinc oxide. The composite material is prepared from the following components in parts by weight: 3 to 4 parts of carbon nanotube grafted montmorillonite hybrid, 2 to 3 parts of lubricant, 0.8 to 1.2 parts of cross-linking agent, 0.3 to 0.4 part of accelerant, 0.4 to 0.6 part of dicumyl peroxide and 0.1 to 0.2 part of antioxidant. Unification of high flame retardance, low smoke, excellent mechanical property and processability of the cable material is realized.

The invention discloses bifidobacterium breve and application thereof in relieving Alzheimer's disease, and belongs to the technical field of probiotics. The preparation method comprises the following steps: separating 18 bifidobacterium strains from feces of children aged 0-3 years old, analyzing and identifying the 18 bifidobacterium strains including bifidobacterium longum, bifidobacterium breve and bifidobacterium animalis, and screening out the bifidobacterium breve LE4 with potential Alzheimer's disease relieving capacity through in-vitro oxidation resistance and LPS (Lipopolysaccharide) removal capacity. The method comprises the steps of behavioral experiments (nesting experiments, open field experiments and water maze experiments), histopathologic analysis, molecular biological detection and the like. The multi-target AD intervention effects of improving the cognitive function, reducing A beta deposition and tau protein phosphorylation, relieving neuroinflammation, enhancing synaptic plasticity, repairing intestinal barriers, adjusting intestinal flora and metabolites and the like of the LE4 strain are comprehensively evaluated, and a new strategy is provided for promoting AD micro-ecological treatment.

The invention relates to the technical field of cables, and provides an anti-aging insulated power cable. A conductor layer and an anti-aging outer sheath layer are sequentially arranged from inside to outside. The anti-aging outer sheath layer is prepared from the following raw materials in parts by weight: 55 to 65 parts of PVC (Polyvinyl Chloride) resin, 20 to 30 parts of ethylene propylene diene monomer, 10 to 15 parts of ethylene-vinyl acetate copolymer, 10 to 12 parts of modified kaolin, 18 to 20 parts of diisononyl phthalate, 4 to 5 parts of calcium-zinc composite stabilizer, 1.5 to 2 parts of antioxidant, 0.5 to 1 part of polyethylene wax and 0.5 to 0.7 part of calcium stearate; the modified kaolin is obtained by coating the surface of kaolin with nano silicon dioxide to obtain SiO2-coated kaolin and grafting the SiO2-coated kaolin with an ultraviolet absorbent. According to the anti-aging insulated power cable prepared in the invention, the problem that the ultraviolet absorbent may be decomposed, volatilized or migrated to fail in long-term use is solved, and the anti-aging stability of the insulating material in long-term operation is improved.

The application provides a masterbatch type vulcanization aid and a preparation method thereof, a rubber composition, a rubber product and a tire. The preparation method comprises the following steps: S1, pre-reaction of stearic acid, an antioxidant and a vulcanization system to obtain a pre-reaction mixture; and S2, mixing of the pre-reaction mixture with rubber to obtain the masterbatch type vulcanization aid. Under the catalysis of stearic acid, the reagents in the antioxidant and the vulcanization system react to generate active intermediates. The active intermediates have the effect of promoting vulcanization and play the role of activating accelerators in advance, so that the active intermediates can replace the role of zinc oxide. The product after reaction is mixed with rubber, and the masterbatch formed can be used to prepare rubber products such as tires without containing zinc elements, so that zinc emission can be realized, and the environment is friendly.

The invention provides linseed oil rich in vitamin E and capable of enhancing linolenic acid activity and a preparation method of the linseed oil, and belongs to the technical field of edible oil processing. The preparation method of the flaxseed oil comprises the following steps: mechanically polishing and degumming flaxseeds, and then carrying out microwave thermal refining and low-temperature squeezing to obtain virgin flaxseed oil and a squeezed cake; adsorbing and deacidifying the primary oil through modified diatomite to obtain refined oil; carrying out ethanol solution ultrasonic extraction and supercritical CO2 extraction on the pressed cake to obtain a high-purity vitamin E extract; and finally, mixing the extract with the refined linseed oil to obtain the linseed oil. Through the whole-process low-temperature, physical adsorption and efficient extraction and purification process, the retention rate and enrichment degree of vitamin E are remarkably improved, meanwhile, nutritional ingredients such as alpha-linolenic acid are effectively protected, use of synthetic antioxidants is avoided, and the product has the advantages of being high in oxidation stability, good in safety, excellent in sensory quality and the like and is suitable for industrial production. The edible oil is suitable for being used as a nutritional supplement, edible oil or food additive.

The invention relates to a preparation method and application of a three-step method environment-friendly SBS modified asphalt regenerant, and the regenerant is composed of modified bio-oil, functionalized desulfurized rubber, a solubilizer, an anti-oxidation aging agent, an anti-light aging agent, a multi-sulfydryl chain reconstruction auxiliary agent, a reversible thioether cross-linking agent and other components. The matrix and polymer network structure of the aged SBS modified asphalt is repaired through light oil supplement and chemical reaction. The preparation method comprises the following steps: introducing a polar functional group into ultrasonic transesterification modified bio-oil to improve wettability; the surface activity of the desulfurized rubber is improved through plasma low-temperature treatment; high-speed shearing and closed-loop control reaction are combined to realize rubber particle dispersion and network reconstruction; chemical crosslinking and aging regeneration are realized through cooperation of specific components. The prepared regenerant is doped into aged SBS modified asphalt at the temperature of 145-165 DEG C according to the proportion of 4-20 wt% to prepare regenerated asphalt.

The invention discloses a cord blood-derived regulatory T cell amplification culture medium and a use method thereof, and relates to the field of animal cell culture and immune cell therapy, the culture medium is a serum-free culture medium, the culture medium is composed of a basic culture medium, a serum substitute combination, a combination of four cell factors, an immunosuppressor, an apparent stabilizer and an antioxidant, and all the components play a role synergistically; according to the use method, cell amplification is realized through a collaborative process of staged environmental regulation and targeted activation. According to the method, the problems of exogenous pollution and batch difference caused by dependence of a serum-containing system on cord blood-derived regulatory T cell amplification in the prior art are solved, the defect that a serum-free scheme is difficult to consider the amplification efficiency and the function stability at the same time is overcome, the cell amplification quality and the clinical application safety are guaranteed, and the method is suitable for large-scale clinical transformation requirements.

The invention relates to the technical field of chemical engineering, and discloses nylon powder for a hydrogen storage bottle inner container and a preparation method thereof, the hydrogen storage bottle inner container and a forming process thereof.The method comprises the following steps that S1, nylon resin, an antioxidant and an organic solvent are mixed, heat preservation is conducted for 15 min to 120 min at the temperature of 140 DEG C to 160 DEG C, and a mixed solution A is formed; s2, the mixed solution A is cooled to 25-60 DEG C, nylon resin is separated out, and slurry B is formed; and S3, removing the organic solvent in the slurry B, and drying to obtain the product. According to the preparation method, the nylon resin and the antioxidant are jointly dissolved in the organic solvent at the specific temperature, the cooling and precipitation conditions are controlled, reconstruction and optimization of the particle size and morphology of the powder are effectively achieved, the obtained powder has the high sphericity degree, uniform particle size distribution and good fluidity, and the preparation method is suitable for industrial production. The melt consistency and the spreading performance in the rotational molding process are improved, the integrity and the air tightness of the hydrogen storage bottle liner structure are improved, and the problems that existing nylon powder is poor in particle size control, insufficient in fluidity and the like are solved.

The invention relates to the technical field of sealing strips, in particular to an anti-aging ethylene propylene diene monomer rubber sealing strip and a preparation method thereof. Comprising the following components in parts by weight: 150-180 parts of ethylene propylene diene monomer, 60-90 parts of carbon black, 8-12 parts of white carbon black, 3-8 parts of a peroxide vulcanizing agent, 6-12 parts of zinc oxide, 12-16 parts of magnesium-aluminum hydrotalcite, 10-18 parts of a plasticizer, 1-3 parts of a crosslinking aid, 1-3 parts of calcium stearate, 1-3 parts of an anti-aging agent and 1-3 parts of a silane coupling agent. The anti-aging agent is a mixture of an anti-aging agent AN245 and an anti-aging agent MBZ. By adding the anti-aging agent, the aging resistance of the ethylene propylene diene monomer can be remarkably improved by inhibiting oxidation and delaying the aging process, a high-crosslinking-density three-dimensional network is formed through the peroxide vulcanizing agent, breakage of molecular chains at high temperature is reduced, thermal aging is delayed, and the ethylene propylene diene monomer sealing strip with excellent aging resistance is prepared.

The invention discloses a polymer sealing ring and a preparation method thereof, and relates to the technical field of polymer materials. The high-temperature-resistant fluororubber sealing gasket is prepared from the following raw materials in percentage by mass: 30 to 50 percent of fluorinated modified silicone rubber, 15 to 25 percent of fluororubber, 7.2 to 16.4 percent of hybrid white carbon black, 2.5 to 6 percent of hydroxyl silicone oil, 8 to 11 percent of plasma fluorinated modified aluminum oxide, 4 to 8 percent of carbon black, 0.8 to 1.4 percent of palm wax, 0.8 to 1.4 percent of internal release agent, 1 to 2 percent of vulcanizing agent, 3 to 5 percent of triallyl isocyanurate and 0.5 to 1 percent of anti-aging agent. The fluorinated modified silicone rubber is prepared by grafting C2-18-perfluoroalkyl iodoethane on a silicone rubber side chain, so that the low temperature resistance of the silicone rubber is effectively improved, and the phenomenon that methyl vinyl silicone rubber is easy to crystallize at low temperature is successfully inhibited; the sealing ring material has good performance at high and low temperatures, and the use temperature range of the sealing ring material is effectively improved.

The invention relates to the technical field of protective glue, in particular to extreme high and low temperature impact resistant UV (ultraviolet) photocuring electronic protective glue which is prepared from the following raw materials in parts by weight: 30-50 parts of synergistically modified epoxy-urethane acrylate oligomer, 20-35 parts of composite active monomer, 1.5-5 parts of composite photoinitiator and 10-20 parts of core-shell structure inorganic composite filler, 0.6 to 2.2 parts of a silane coupling agent, 0.12 to 1.1 parts of an antioxidant and 0.11 to 1 part of a leveling agent; the preparation method of the synergistically modified epoxy-urethane acrylate oligomer comprises the following steps: reacting resin acid modified epoxy resin with phosphoric acid di (hydroxyethyl acrylate) ester at 80-90 DEG C, and introducing a phosphate group to obtain a phosphate modified epoxy acrylate intermediate; the protection glue unifies rigidity, flexibility and flame retardance on the molecular level through the cooperation of the hybrid oligomer and the core-shell filler, realizes high heat conductivity, strong adhesion and extremely low internal stress, and has extreme temperature impact resistance, long-term damp-heat aging resistance and high-reliability protection performance.

The invention relates to the technical field of cable preparation, and provides a high-temperature-resistant flame-retardant cable, which comprises a cable core, and an insulating layer and a sheath layer which sequentially coat the cable core from inside to outside, the sheath layer is prepared from the following components in parts by weight: 8 to 10 parts of ethylene-vinyl acetate copolymer, 15 to 18 parts of ethylene-acrylate copolymer, 15 to 18 parts of polyvinyl chloride resin, 15 to 20 parts of filler, 10 to 12 parts of modified glass fiber, 3 to 4 parts of maleic anhydride grafted polyethylene, 0.5 to 1 part of ultraviolet absorbent, 1 to 2 parts of antioxidant and 1 to 2 parts of coupling agent. The cable has the beneficial effects that through introduction of the modified glass fiber and the functional monomer, the mechanical property and the flame retardant grade of the cable are improved, and the stability of the cable in a high-temperature environment is also remarkably enhanced.

The invention relates to the technical field of adhesives, in particular to a bio-based polyurethane hot melt adhesive and a preparation process thereof. The bio-based polyurethane hot melt adhesive is prepared from the following raw materials in parts by weight: 30 to 40 parts of bio-based polyester glycol, 60 to 80 parts of bio-based polyether polyol, 25 to 35 parts of acrylic resin, 40 to 60 parts of isophorone diisocyanate, 3 to 5 parts of bisphenol A epoxy resin E-44, 3 to 5 parts of 1, 3-butanediol, 1, 3-butanediol and 1, 3-butanediol. The coating is prepared from the following raw materials in parts by weight: 1-2 parts of 1, 4-butanediol, 0.2-0.6 part of dibutyltin dilaurate, 0.6-1.0 part of 3-aminopropyltriethoxysilane, 3-5 parts of modified carbon nanotubes, 2-4 parts of a curing agent, 1-1.5 parts of an ultraviolet absorbent and 0.8-1.2 parts of an antioxidant. The bio-based polyurethane hot melt adhesive prepared by the invention not only has better adhesive property, but also has excellent mechanical property and aging resistance, and the quality of the bio-based polyurethane hot melt adhesive is ensured while the service life of the bio-based polyurethane hot melt adhesive is effectively prolonged.

The invention belongs to the technical field of polyurethane resin, and provides polyurethane resin, polyurethane synthetic leather and a preparation method and application thereof. The preparation raw materials of the polyurethane resin comprise the following components: 9%-23% of first bio-based polyol, 3%-18% of a polyurethane intermediate, 0.005%-0.02% of a first antioxidant, 0.001%-0.003% of a first catalyst, 3-6% of first isocyanate, 0.5%-2% of a first chain extender, 0.01%-0.05% of a first terminator, 0.01%-0.05% of a first anti-visbreaking aid, 0.7%-2.2% of an astringent aid, 0.5%-3% of a polyether aid and 50%-70% of a first solvent. The first bio-based polyol includes a bio-based polytrimethylene ether glycol and a bio-based polycarbonate glycol. The preparation raw materials are all derived from bio-based materials, and the polyurethane synthetic leather is soft in texture, good in astringent feeling and excellent in strength and hydrolysis resistance.

The invention discloses unsaturated polyester resin for an optical cable reinforcing core and a preparation method thereof, and belongs to the technical field of unsaturated polyester resin. The composition is composed of the following components: PG, IPA, a catalyst, maleic anhydride, AA, styrene, an antioxidant, a first polymerization inhibitor, a second polymerization inhibitor and a third polymerization inhibitor. The ratio of alcohol to acid is (1.08-1.12): 1; the activity is (3.4-3.8): 1; the molar ratio of AA to IPA is 1: (12-16); the preparation method comprises the following steps: 1) uniformly mixing propylene glycol, a catalyst and isophthalic acid; 2) raising the temperature, preserving the heat and raising the temperature again; cooling, sequentially adding a first polymerization inhibitor, maleic anhydride and adipic acid, heating, keeping the temperature, and heating again; 3) cooling and adding a second polymerization inhibitor, and 4) cooling and adding styrene, a third polymerization inhibitor and an antioxidant, uniformly mixing, and cooling to less than or equal to 60 DEG C to obtain the unsaturated polyester resin for the optical cable reinforcing core. The unsaturated polyester resin for the optical cable reinforcing core has the characteristics of high bending strength and high temperature resistance.

The invention discloses a flame-retardant and wear-resistant rope and a preparation method thereof, and belongs to the technical field of rope processing. The rope comprises a steel wire rope and a rubber sheath; wherein the rubber sheath comprises inner-layer rubber and outer-layer rubber; the inner-layer rubber is prepared from the following components: butadiene styrene rubber, white carbon black, an activating agent, a reinforcing agent, an anti-aging agent, gamma-mercaptopropyltriethoxysilane, a rubber adhesive, cobalt neodecanoate, sulfur and a vulcanization accelerator; the outer-layer rubber comprises the following components: butadiene styrene rubber, nitrile rubber, a flame-retardant wear-resistant reinforcing agent, white carbon black, an activating agent, a reinforcing agent, an anti-aging agent, an antistatic agent, sulfur and a vulcanization accelerator; the cross section of the rope is designed to be flat, the width of the rope is 30-250 mm, the thickness of the rope is 10-40 mm, and the mass of the rope per meter is 0.5-25 kg / m. The prepared rope has excellent flame retardance, wear resistance and antistatic performance, the adhesive force between the rubber layer and the steel wire is large, and the rope is not prone to being abraded or peeled off in long-term use.

The invention discloses a production method of a PET composite current collector base film with high mechanical property. The base film comprises an outer surface layer, a middle core layer and an inner surface layer, the outer surface layer is composed of PET, fumaric acid, hydroxyl-terminated polybutadiene and an antioxidant; the middle core layer consists of PET (Polyethylene Terephthalate), furandicarboxylic acid, an antioxidant and a stabilizer; the inner surface layer is composed of dimethyl terephthalate, ethylene glycol, spiro diol, ethylene glycol antimony and zinc acetate. The PET composite current collector base film prepared by the preparation method disclosed by the invention has relatively high mechanical properties.

The invention relates to the technical field of cables, and provides a high-temperature-resistant flame-retardant cable and a preparation method thereof. The high-temperature-resistant flame-retardant cable comprises a conductor and a flame-retardant outer sheath, the flame-retardant outer sheath is prepared from the following raw materials in parts by weight: 40 to 50 parts of linear low-density polyethylene, 35 to 45 parts of ethylene-vinyl acetate copolymer, 10 to 15 parts of ethylene propylene diene monomer, 15 to 18 parts of modified aluminum hydroxide, 10 to 14 parts of modified magnesium hydroxide, 5 to 8 parts of polyethylene grafted maleic anhydride, 5 to 8 parts of microencapsulated red phosphorus, 2 to 3 parts of silane coupling agent and 0.8 to 1 part of antioxidant. The composite material is prepared from the following components in parts by weight: 0.5-1 part of a light stabilizer, 0.5-1 part of calcium stearate, 0.8-1 part of polyethylene wax and 0.5-0.9 part of carbon nanotubes. According to the cable prepared in the invention, the performance stability of an existing high-temperature-resistant material in a high-temperature environment is improved, and the problems of softening, melting and the like of the cable are avoided.

Solid lipid nanoparticles (SLNs) for delivery of bioactive compounds are disclosed. The SLNs comprise a lipid matrix and surfactant layer encapsulating at least one bioactive compound selected from vitamins, minerals, enzymes, algae-derived bioactives, proteins, peptides, amino acids, antioxidants, small synthetic molecules, plant-derived volatile compounds, or botanical extracts. The SLNs exhibit submicron particle size, low polydispersity, and sufficient surface charge to ensure colloidal stability and efficient delivery. In one embodiment, algae-based bioactives, such as phycocyanin or fucoxanthin, are encapsulated using only natural and sustainable lipids and surfactants to improve bioavailability and support environmentally friendly formulations. The SLNs may be formulated for oral, topical, transdermal, injectable, ophthalmic, mucosal, textile, veterinary, or agricultural administration. Applications include human and animal health, functional foods, skincare, nutrient supplementation, and crop treatment. The disclosed SLNs offer a biocompatible and scalable delivery system that protects sensitive compounds, enables sustained release, and enhances absorption across diverse industries.

The invention discloses a cross-linked polyethylene insulating material for middle and high voltage cables and a preparation method of the cross-linked polyethylene insulating material. Comprising the following raw material components in parts by weight: 100 parts of a polyethylene base material, 1.0-2.5 parts of a peroxide cross-linking agent, 0.05-0.5 part of an anti-scorching agent, 0.1-5.0 parts of a water tree resistant additive, 0.1-1.0 part of a main antioxidant, 0.1-1.0 part of an auxiliary antioxidant, 0-2.0 parts of a processing aid and 0-0.5 part of a metal deactivator. The cross-linked polyethylene insulating material for the middle-high voltage cable is suitable for manufacturing a power cable insulating layer with the rated voltage of 10 kV or above. And the method is particularly suitable for application scenes with high requirements on processing stability, long-term reliability and energy efficiency.

The application provides a zinc-free vulcanization aid, a rubber composition, a rubber product and a tire. The zinc-free vulcanization aid is prepared by the following method: zinc oxide, stearic acid, an antioxidant, a vulcanization system medicine are pre-reacted in a solvent, and after pre-reaction, filtration for removing zinc and solvent removal are sequentially performed to obtain the zinc-free vulcanization aid. The zinc-free vulcanization aid contains an active intermediate generated by pre-reaction, the intermediate has the effect of promoting vulcanization, and plays the role of activating the accelerator in advance, so that it can partially or completely replace the role of zinc oxide in the ordinary formula. The zinc-free rubber product can be prepared by using the zinc-free vulcanization aid, zinc emission is realized, the environment is friendly, and through the action of the zinc-free vulcanization aid, the rubber composition can obtain the rubber properties such as crosslinking density, hardness, modulus, hysteresis and the like close to those of the zinc-containing rubber without containing zinc.

The invention belongs to the technical field of high polymer materials, and particularly relates to special resin for a polyethylene film as well as a preparation method and application thereof. The special resin for the polyethylene film is prepared from the following components in parts by weight: 50 to 70 parts of HDPE (High-Density Polyethylene) resin, 20 to 30 parts of LLDPE (Linear Low Density Polyethylene) resin, 0.5 to 3 parts of nano zinc oxide, 5 to 10 parts of maleic anhydride grafted POE (Polyolefin Elastomer) and 0.1 to 0.5 part of antioxidant. The HDPE, the LLDPE and the grafted POE form a three-phase topological structure, so that the bending modulus and the notch toughness can be synchronously improved. The special resin for the polyethylene film, which is prepared by adopting a low-temperature second-order blending process, can keep the toughening effect of an elastomer. The special resin for the polyethylene film prepared by the invention can realize ultrahigh toughness while keeping high rigidity, has long-acting weather resistance, can meet the requirements of packaging films and other high-end fields, is high in processing adaptability, and is suitable for a high-speed film blowing production line.

The invention discloses an anti-ultraviolet high-flame-retardant polyester fiber and a preparation method thereof. The polyester fiber is prepared from the following raw materials in parts by weight: 100 parts of polyester chips, 20-60 parts of core-shell flame-retardant anti-ultraviolet particles and 2-4.5 parts of an anti-dripping agent. According to the invention, a porous alumina-titanium dioxide compound is used as a carrier, a magnesium hydroxide flame retardant, iron-doped carbon dots with photo-thermal performance and auxiliaries (an antioxidant and an ultraviolet light absorber) are combined with the carrier to construct a structural system loaded with multiple active components: functionalized flame-retardant particles, and then a polyurethane microporous membrane is coated, so that the flame-retardant polyurethane composite material is obtained. The core-shell type flame-retardant anti-ultraviolet particles are added into polyester fibers, so that the anti-ultraviolet performance and the flame-retardant performance of the polyester fibers can be remarkably improved. The polyester fiber provided by the invention can adaptively increase the release rate of the ultraviolet absorbent and the antioxidant when the ultraviolet property is enhanced in the environment, so that more optimized protection can be provided for a polyester fiber matrix at the moment.

The invention relates to a heat-conducting insulating cable material and a preparation method thereof, and belongs to the technical field of cable materials, the heat-conducting insulating cable material comprises the following raw materials: 50-60 parts of polypropylene, 25-30 parts of SEBS, 12-18 parts of a modified heat-conducting insulating material, 2-4 parts of a plasticizer, 6-8 parts of an antioxidant, 3-4 parts of a lubricant and 7-10 parts of a reinforcing filler; according to the technical scheme, modified hydroxylated boron nitride is combined with organic intercalated montmorillonite, then a silane coupling agent is grafted, and a silanization reinforced material is obtained; combining the silanization reinforcing material with a branched functional monomer to obtain an amino-terminated hyperbranched composite material; combining the amino-terminated hyperbranched composite material with an interface modifier to obtain a modified heat-conducting insulating material; mixing polypropylene, SEBS, the modified heat-conducting insulating material, a plasticizer, an antioxidant, a lubricant and a reinforcing filler, and performing extrusion granulation to obtain the heat-conducting insulating cable material. The mechanical property, the heat-conducting property and the insulating property of the cable material are improved.

The invention relates to the technical field of composite films, and particularly discloses a low-temperature heat-sealable high-strength BOPP composite film and a preparation process thereof.The BOPP composite film is prepared by adopting three-layer co-extrusion and two-way stretching processes, and the balance between high strength and low-temperature heat sealability is achieved. The composite film comprises an anti-adhesion surface layer, a core layer and a low-temperature heat-sealing layer; the anti-adhesion surface layer is prepared from the following raw materials: homo-polypropylene, a composite anti-adhesion agent, a slipping agent and PP-g-MAH; the composite anti-adhesion agent is prepared from modified silicon dioxide and modified diatomite in a mass ratio of 3 to 1; the raw materials of the core layer comprise homo-polypropylene, an antistatic agent and a coupling agent, and the raw materials of the low-temperature heat sealing layer comprise an ethylene-vinyl acetate copolymer, PP-g-MAH, a polyolefin elastomer, POE-g-MAH, a modified nucleating agent and an antioxidant, so that the balance of high strength and low-temperature heat sealability is realized, interlayer performance complementation is realized, the mechanical strength is improved, the heat sealing temperature is reduced, and the service life is prolonged. The overall peel strength is improved, and no layering phenomenon exists during stretching.

The invention provides a low-heat-generation self-lubricating oil seal rubber material and a preparation method thereof. The rubber material comprises the following components in parts by weight: 100 parts of main rubber, 3-6 parts of zinc oxide, 1-3 parts of an anti-aging agent, 1-3 parts of solid marone indene resin, 3-8 parts of a self-repairing lubricant, 5-25 parts of a reinforcing agent, 70-100 parts of diatomite, 5-15 parts of a plasticizer, 1-5 parts of tetrafluoroethylene, 1-3 parts of stearic acid, 1-3 parts of a flow promoter, 0.2-0.5 part of sulfur and 1-2 parts of an accelerant. The nano silicon dioxide-ionic liquid composite material is added into the oil seal rubber material as a self-repairing lubricant, and the ionic liquid of the composite material can form a lubricating film on a friction interface, so that the friction coefficient is reduced, the self-lubricating effect is realized, and the dynamic temperature rise is reduced; in addition, the ionic liquid can also cover a damaged area and repair microscopic cracks; meanwhile, after the self-repairing lubricant is dispersed, a heat conduction network can be formed, and heat generation is reduced.

The invention relates to the technical field of high polymer materials, and discloses a low-temperature-resistant butyronitrile composite material and a preparation method thereof. The butyronitrile composite material comprises the following raw materials in parts by weight: 60-80 parts of nitrile rubber, 25-35 parts of modified hydrogenated nitrile rubber, 1.5-2.5 parts of a vulcanizing agent, 2-3 parts of a vulcanization accelerator, 3-6 parts of a cold-resistant plasticizer, 20-30 parts of carbon black and 2-4 parts of an anti-aging agent. The material is prepared by taking nitrile rubber as a main matrix and adding functional aids such as modified hydrogenated nitrile rubber. The composite material has excellent low temperature resistance while maintaining the comprehensive performance of the nitrile rubber, so that the composite material can be widely applied to the environment needing to adapt to low temperature.

The invention relates to the technical field of lubricating oil, in particular to high-temperature-corrosion-resistant lubricating oil and a preparation method thereof. The high-temperature-corrosion-resistant lubricating oil is prepared from the following raw materials in parts by mass: 130 to 190 parts of base oil, 1 to 5 parts of an anti-wear reagent at extreme pressure, 1 to 5 parts of amino modified graphene, 0.1 to 1 part of an anti-rust agent, 1 to 3 parts of an antioxidant, 0.1 to 1 part of a de-foaming agent, 5 to 15 parts of trioctyl trimellitate, 1 to 5 parts of sodium lignin sulfonate and 1 to 5 parts of sodium bentonite. The high temperature resistance and the viscosity-temperature performance of the lubricating oil can meet the use requirements of a bearing under the working conditions of high speed, high temperature and large load, the wear resistance and the friction reduction of the lubricating oil at high temperature are effectively improved, and meanwhile the preparation method is simple and suitable for large-scale popularization and application.