42 results about "Furfurylamine" patented technology

The invention provides a de-adhesion electromagnetic shielding film material and a preparation method and application thereof, the electromagnetic shielding film material comprises the following preparation raw materials: a BMI-FA material, epoxy resin, a curing agent, film-forming resin and conductive particles, and the BMI-FA material is a product obtained by a Diels-Alder (D-A) reaction of bismaleimide and furfuryl amine. According to the invention, BMI-FA is introduced into epoxy resin to realize D-A crosslinking, epoxy resin with D-A dynamic bonds is obtained, high bonding strength of the electromagnetic shielding film to a device at room temperature is ensured, non-destructive separation of the electromagnetic shielding film to the device at a specific temperature is realized, the maintenance yield of the device is improved, and the production cost of the device is reduced. In addition, the use of an organic solvent is avoided in the de-bonding process, and no thermal decomposition gas exists, so that the adhesive is environment-friendly.

The application belongs to the technical field of organic synthesis, and discloses a preparation method of N-ethyl-2-(N-methyl pyrrolyl) pyrrole, which comprises the following steps: dissolving 1-furfuryl pyrrole, ethylamine and ethanol in water, adding hydrochloric acid into the water, heating and reacting, the reaction temperature is 150-180 DEG C, and the reaction time is 15-35 h; and the target product is obtained. The 1-furfuryl pyrrole is prepared by condensation reaction of 2-furfurylamine and 2,5-dimethoxy tetrahydrofuran, and then the target product N-ethyl-2-(N-methyl pyrrolyl) pyrrole is prepared by reaction of the 1-furfuryl pyrrole and ethylamine, and the raw materials are relatively cheap and have high industrial value.

The invention discloses biomass equol-furfuryl amine type benzoxazine resin and a preparation method thereof.The preparation method comprises the steps that furfuryl amine, formaldehyde and equol are directly added into a reactor, and then methylbenzene and an absolute ethyl alcohol solution are added; then heating to a reflux state and reacting for 10-15 hours; and after the reaction is completed, removing redundant solvent, separating out a final product by using normal hexane, removing normal hexane, and drying to obtain the biomass equol-furfuryl amine type benzoxazine monomer. Placing the biomass equol-furfuryl amine type benzoxazine monomer obtained in the step (1) in a mold, and then performing stepped curing to obtain the biomass equol-furfuryl amine type benzoxazine resin. The synthesis process is simple and reasonable, the purity is high, the yield is high, and the cost is low.

The application discloses a toughened composite polyurethane impact-resistant material based on dynamic covalent bond energy regulation, and belongs to the technical field of polyurethane materials. A double dynamic covalent network containing DA bonds and disulfide bonds is constructed by reacting polyurethane prepolymer, furfurylamine, cystine diethyl ester and bismaleimide, then nano molybdenum disulfide is modified by silane, then a metal-polyphenol / polymer composite interface layer is constructed on the surface of aramid fiber by tannic acid-iron complex and polyethyleneimine, finally, the components are mixed, impregnated and hot-pressed to obtain the composite polyurethane material. The application effectively dissipates impact energy through the reversible rupture and recombination of dynamic covalent bonds, and enhances the interfacial bonding force between components by using multiple interface modification, so that the material has excellent impact resistance, high strength, high ductility and efficient self-repairing function, solves the problems of easy damage of the interface of traditional composite materials, insufficient impact resistance and irreversible damage, and has wide application prospect in the fields of safety protection and buffer components.

The invention relates to a paraffin modified organic silicon pressure-sensitive adhesive with viscosity switching triggered by temperature, and belongs to the technical field of pressure-sensitive adhesives. The preparation method comprises the following steps: by taking high-temperature wax as a core material and melamine-formaldehyde resin and a KH-550 modified nano boron nitride hybrid shell layer as wall materials, obtaining a phase change microcapsule by adopting an in-situ polymerization method, and then grafting Mal-PEG2-COOH to obtain a modified phase change microcapsule; the preparation method comprises the following steps: forming an intermediate from isocyanate propyl triethoxy silane and furfuryl amine, hydrolyzing to modify an organic silicon pressure-sensitive base adhesive, and preparing the organic silicon pressure-sensitive adhesive from the modified organic silicon pressure-sensitive base adhesive and the modified phase-change microcapsules. The DA reaction is performed at normal temperature to form a covalent cross-linked network, so that the pressure-sensitive adhesive is endowed with high-strength adhesive property; during heating, paraffin melting and DA reverse reaction cooperate to reduce viscosity, and viscosity switching triggered by temperature is achieved; and the modified nano boron nitride can accelerate temperature response and enhance the mechanical property of the microcapsule. The organic silicon pressure-sensitive adhesive prepared by the invention has the effect of temperature-triggered viscosity switching.

This invention discloses a photo / thermal dual-curing bio-based UV ink composition and its preparation method, relating to the field of UV-curable printing materials. It comprises the following raw materials in parts by weight: 100 parts of polypropylene carbonate diol-type polyurethane acrylate oligomer, 5-20 parts of a thermosetting component, 50-150 parts of an reactive diluent, 2-10 parts of a free radical photoinitiator, 0-80 parts of a colorant, and 0-10 parts of other additives; the thermosetting component includes eugenol-furfurylamine type benzoxazine monomer. The UV ink composition obtained by this invention can be heat-treated after photocuring. The polybenzoxazine network is interpenetrated after the formed polyurethane acrylate pre-crosslinked network, forming an interpenetrating or interpenetrating polymer network, and additional crosslinking can occur. This not only improves the strength and flexibility of the ink layer but also effectively enhances solvent resistance and adhesion, resulting in a UV ink composition with excellent overall performance.

The invention discloses a genetically engineered bacterium and a method for preparing furyl organic amine by using the genetically engineered bacterium. The method comprises the following steps: carrying out catalytic reaction in a reaction system containing an amino donor by using a cell carrier for expressing transaminase; according to the catalytic reaction, aldehyde group / carbonyl group of a reaction substrate is reduced and aminated into amino group, so that furyl organic amine is prepared. According to one embodiment of the invention, synthesis of furfuryl amine is catalyzed by utilizing rhodococcus red expressing transaminase, the enzyme activity of free cells of the rhodococcus is far higher than that in escherichia coli and can reach 1.5 times, 100% conversion of a substrate can be realized, and the reaction time is less than half or more of that of the escherichia coli; the substrate tolerance of the free cells of the rhodococcus is far higher than that in escherichia coli and can reach more than 5 times; the product tolerance of the free cells of the rhodococcus is far higher than that in escherichia coli and can reach 2.5 times; compared with 2-3 times of Escherichia coli, the batch of Rhodococcus free cell reaction is increased to 7-9 times.

The invention discloses an anisotropic conductive stretchable electronic solder and a preparation method and application thereof, the stretchable electronic solder comprises a polymer adhesive and a silver nanosheet, and the mass ratio of the polymer adhesive to the silver nanosheet is (5-20): 1; the high-molecular adhesive is obtained by heating bisphenol A diglycidyl ether, polyethylene glycol diglycidyl ether and furfuryl amine at 40-60 DEG C to react, and then heating with N, N '-(4, 4'-methylene diphenyl) bismaleimide at 60-80 DEG C to react. According to the anisotropic conductive stretchable electronic solder provided by the invention, by virtue of excellent flexibility and stretchability endowed by the dynamic chemical polymer adhesive, the problem of stress concentration caused by physicochemical property difference of a soft / hard base material can be effectively counteracted, stable connection of an electrical interface is always kept in a stretching deformation process, and the reliability of the electronic solder is improved. Universal welding of flexible, stretchable and rigid materials and devices is successfully achieved.

The invention discloses novel benzoxazine and a synthesis method thereof, and belongs to the technical field of chemical synthesis. The synthesis method comprises the following steps: adding eugenol, furfuryl amine and paraformaldehyde into a three-necked flask according to a ratio of 1: 1: 2, then adding a toluene solution, uniformly mixing, then heating at 100 DEG C for 3 hours to synthesize a compound A, mixing the compound A and 1, 1, 5, 5-tetramethyl-3, 3-diphenyl trisiloxane according to a ratio of 1: 2, adding 1, 3-divinyl-1, 1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 2, 3, 3, 3-tetramethyldisiloxane platinum (0) as a catalyst and toluene are added into a flask together, and a heating reaction is performed at 75 DEG C for 12 h to synthesize a compound B; according to the invention, a Mannich reaction is used to obtain a novel benzoxazine resin TDT-fa (compound B). The invention relates to a preparation method of benzoxazine. The preparation method is characterized in that a dibenzoxazine monomer intermediate structure is a siloxane structure.

The application discloses a benzoxazine monomer containing polymerizable double bonds, and a cured resin and a composite resin thereof, and relates to the technical field of resin synthesis. Under the protection of nitrogen, an aldehyde compound, furfurylamine, 2,2'-diallyl bisphenol A and an organic solvent are added into a reaction container, and then the mixture is reacted at 80-120 DEG C for 2-24 hours, and the 2,2'-diallyl bisphenol A-furfurylamine type benzoxazine monomer is obtained after post-treatment. The obtained benzoxazine monomer containing polymerizable double bonds is dissolved and then heat-cured to obtain a cured resin. The obtained benzoxazine monomer containing polymerizable double bonds is mixed and dissolved with polyphenyl ether and its modified products, and then heat-cured to obtain a benzoxazine / polyphenyl ether composite resin. The 2,2'-diallyl bisphenol A-furfurylamine type benzoxazine monomer is synthesized by using a relatively simple method, and then a 2,2'-diallyl bisphenol A-furfurylamine type benzoxazine / polyphenyl ether composite resin is obtained by blending and heat-curing. The composite resin has excellent thermal performance and high-frequency dielectric performance.

The invention provides a light and heat dual repairable epoxy resin-based composite material and a preparation method thereof, and the preparation method comprises the following steps: adding a modified graphite-based nanofiller into a single epoxy diluent, carrying out ultrasonic treatment, adding epoxy resin and furfuryl amine into the single epoxy diluent, and carrying out a reaction under a heating condition to obtain PDA (at) Gra / FA-EP after the reaction is completed; the PDA (at) Gra / FA-EP and bismaleimide are mixed and smashed, and mixed powder is obtained; carrying out vacuum treatment on the mixed powder to obtain a blend; and carrying out molding, vacuum treatment and drying on the blend to obtain the light and heat dual repairable epoxy resin-based composite material. According to the photo-thermal repairable epoxy resin-based composite material, the graphite-based substance is coated with dopamine, so that the graphite-based substance is well dispersed in epoxy resin, and the situation that the photo-thermal conversion efficiency is affected due to the fact that the graphite structure of the graphite-based substance is damaged due to oxidation modification is avoided.

The application discloses a kind of dirt-resistant protective fabric and preparation method thereof, it is related to fabric technical field.The application is prepared when dirt-resistant protective fabric, six chloro-cyclotriphosphazene, p-hydroxybenzaldehyde reaction is obtained intermediate;Intermediate, 2-furfurylamine reaction is obtained composite flame retardant;Polyester chip, composite flame retardant is mixed after extruding granulation, and then melt spinning is prepared polyester fiber;Polyester fiber is woven into polyester fabric by textile equipment;Vinyl rare earth europium complex, vinyl azobenzene, dibenzoyl peroxide, toluene are prepared into mixed finishing liquid;Anti-fouling finishing agent, deionized water are prepared into anti-fouling finishing liquid;Polyester fabric is sequentially finished with mixed finishing liquid, anti-fouling finishing liquid, and dirt-resistant protective fabric is prepared.The dirt-resistant protective fabric prepared by the application has the advantages of dirt resistance, flame retardance and anti-uv aging.

The present application relates to an environment-friendly water-based industrial anticorrosive coating and a preparation method thereof, and belongs to the technical field of coating. The coating composition comprises chloroether resin emulsion, corrosion inhibition emulsion, barrier agent, slag composite filler, etc. The corrosion inhibition emulsion is prepared by using hexamethylcyclotrisilazane, glycidyl furfuryl ether and 2-furfurylamine in isopropyl alcohol as raw materials and tetramethylammonium hydroxide as catalyst, and then emulsified with deionized water and composite emulsifier after removing isopropyl alcohol. The barrier agent is prepared by modifying the titanium aluminum carbide sheet layer after acid stripping with 3-aminopropyltriethoxysilane. The slag composite filler is prepared by sintering blast furnace slag powder, zeolite powder and potassium dihydrogen phosphate, etching with citric acid, and then modifying with boron nitride and KH-172 silane coupling agent. The coating uses water as the dispersion medium to reduce VOC emissions, and constructs a protective system in multiple dimensions through chemical active corrosion protection, physical layered barrier, dense film formation and interface covalent bonding, and is suitable for harsh corrosion scenes such as industrial heavy-duty corrosion, ships and marine engineering.

The application discloses a cake-separation protein-based adhesive as well as a preparation method and application thereof, and relates to the technical field of adhesives.The adhesive is prepared from the following components: trifuran formaldehyde diimine, a carbonyl compound, cake-separation protein, furan amine, an ester compound, a curing agent, an initiator and water.The adhesive has good mechanical properties, high water resistance and fast curing.

The present application relates to a kind of biomass platform molecule furfural selective reduction amination method for preparing furfurylamine.Furfural, Ni@C catalyst and methanol ammonia solution are added to high-temperature and high-pressure airtight reactor, 0.1-2MPa H2 is filled, and the reaction is carried out at the temperature of 40-70 DEG C for 0.5-2h, and the highest furfurylamine yield is 95.1%.The preparation method of Ni@C catalyst of the present application is simple, low in price, Ni is highly dispersed, and has high specific surface area, realizes furfurylamine under mild conditions.The existing furfurylamine preparation furfurylamine uses noble metal as catalyst, and the problems of high price and low efficiency of non-noble metal catalyst are overcome, and the catalyst has good universality, can catalyze the reduction amination of a variety of aldehydes to prepare primary amine.

This invention discloses a rapid thermally conductive coated sand and its preparation process, relating to the field of coated sand technology. The raw materials include the following parts by weight: 100-105 parts raw sand, 6-8 parts modified resin prepolymer, 2-4 parts modified POE, 3.5-4.5 parts lubricant, and 3-5 parts nano-silicon nitride. The modified POE has a strong high-temperature toughening effect on the modified resin prepolymer and can also form chemical crosslinks with it, exhibiting strong compatibility with other raw materials in the coated sand. The modified resin prepolymer is obtained by heating and ring-opening polymerization of benzoxazine monomers obtained from the reaction of 5-nitrosalicylic acid, ethyl 2,4-ditrifluoromethyl-5-pyrimidinecarboxylate, paraformaldehyde, and furfurylamine. The modified resin prepolymer has a lower curing temperature and improved thermal stability, which helps to improve the high-temperature resistance of the coated sand.

The application belongs to the technical field of polymer materials, and particularly relates to a kind of methylene furan-containing aromatic skeleton double urea nucleating agent, heat-resistant polylactic acid composition and a preparation method thereof. A series of methylene furan-containing aromatic skeleton double urea polylactic acid nucleating agents are prepared by a green route using non-isocyanate as raw material, and a furfurylamine derived from biomass by a one-pot two-step method. In the polylactic acid composition, the mass content ratio of polylactic acid and nucleating agent is 100:0.1-5. Dry polylactic acid and methylene furan-containing aromatic skeleton double urea nucleating agent are mixed by a double-screw mixer at 150-220 DEG C for 3-15 min. The polylactic acid composition modified by the nucleating agent has a significant improvement in crystallization rate and crystallinity, and the heat resistance is further enhanced, so the composition has a good industrialization prospect.

The present application relates to the technical field of paint, in particular to a kind of high-temperature-resistant modified epoxy paint and preparation method thereof, comprising the following steps: under the protection of nitrogen, modified polysiloxane is added with amino-terminated hyperbranched polysiloxane, furfurylamine is obtained, functionalized polysiloxane is obtained, fluorine-containing biphenyl liquid crystal epoxy monomer is mixed with epoxy-based POSS, 4,4'-diaminodiphenyl methane and 2-ethyl-4-methyl imidazole are added, and pre-mixed resin is obtained, functionalized polysiloxane and bismaleimide are added into pre-mixed resin, after reaction, modified solvent is added to adjust viscosity, and high-temperature-resistant modified epoxy paint is obtained after filtration.The present application makes the chemical compatibility and blending of epoxy-based POSS and fluorine-containing biphenyl liquid crystal epoxy monomer in the molten state, makes POSS access to crosslinking network in the form of covalent bond, ensures the uniform distribution of POSS in coating from molecular level, and overcomes the technical difficulties of easy aggregation and poor dispersibility of POSS in traditional physical blending.

The application discloses a kind of flame-retardant soundproof polyurethane foam and its preparation method and application, the flame-retardant soundproof polyurethane foam preparation raw material includes component A and component B;The component A is obtained by the reaction of each component including the following parts by mass: 30-50 parts of polyether polyol-1, 10-20 parts of formaldehyde, 0-10 parts of polyformaldehyde, 20-30 parts of melamine, 1-10 parts of furfurylamine, 2-8 parts of bismaleimide;The component B is obtained by the reaction of each component including the following parts by mass: 25-45 parts of polyether polyol-2, 5-20 parts of isocyanate 1, 40-70 parts of isocyanate 2.The foam material prepared by the application has the advantages of high foam open porosity, fine cell, high foam strength, excellent flame-retardant performance, etc., and can be quickly formed by one-step method, has fast curing speed, can be spray-formed, and is suitable for different construction conditions, complex shape sound insulation requirements.

The application discloses anisotropic conductive stretchable electronic solder as well as a preparation method and application thereof, the stretchable electronic solder comprises a polymer binder and silver nanosheets, and the mass ratio of the polymer binder to the silver nanosheets is (5-20):1; the polymer binder is obtained by heating reaction of bisphenol A diglycidyl ether, polyethylene glycol diglycidyl ether and furfurylamine at 40-60 DEG C, and then heating reaction of N,N'-(4,4'-methylene diphenyl) bismaleimide at 60-80 DEG C. The anisotropic conductive stretchable electronic solder provided by the application can effectively offset the stress concentration problem caused by the difference in physical and chemical properties of soft / hard substrates, and ensure that the electrical interface always maintains stable connection in the stretching deformation process, and successfully realizes the universal welding of flexible, stretchable and rigid materials and devices.

The invention discloses a preparation method of a novel vanillin / furyl double-bio-based epoxy monomer. The structure of the novel vanillin / furyl double-bio-based epoxy monomer FREP is shown in the specification. The epoxy resin monomer is derived from vanillin, coupled vanillin is used as a precursor, a Schiff base reaction is utilized, a furan group is introduced through furfuryl amine, then generated imine is reduced into secondary amine, and finally epoxidation is performed, so that the novel vanillin / furyl double-bio-based epoxy monomer (FREP) is prepared.

The invention discloses a bio-based intramolecular composite antioxidant, which has a structure as shown in the following formula I. The bio-based intramolecular composite antioxidant is synthesized by taking bio-based cardanol as a main raw material, firstly halogenating the cardanol to obtain halogenated cardanol, and then performing amination reaction on the halogenated cardanol and 2-furanmethylamine. The antioxidant not only contains phenolic hydroxyl groups which play a role in inactivating peroxy free radicals in hindered phenol antioxidants, but also contains hindered amine which has a function of capturing peroxy free radicals to prevent or inhibit chain reaction and chain growth reaction, not only has good oxidation resistance, but also has the advantages of easily available raw materials, no toxic or side effect and degradability, and can be degraded even if the antioxidant is decomposed in a high-heat environment. Decomposition products are also safe and harmless. And when being applied to polybutylene-1 resin, the polybutylene-1 resin has no influence on human health and environmental safety. Not only is a bio-based raw material adopted, but also a benzene ring is replaced by an aromatic furan ring, so that the dependence on petrochemical resources is reduced, and the method is more environment-friendly.

The invention relates to the technical field of phenolic resin, and discloses high-strength phenolic resin and a preparation method thereof, and the high-strength phenolic resin is prepared by using phenol and formaldehyde as basic raw materials and introducing furfuryl amine polymer and hyperbranched polyamide as a composite modifier. According to the invention, a synergistic effect is formed through the rigidity enhancement effect of the furfuryl amine polymer and the toughening effect of the hyperbranched polyamide, so that the tensile strength, bending strength and impact strength of the phenolic resin are remarkably improved, and meanwhile, the thermal stability is optimized; the product is suitable for the fields of mechanical parts, electronic packaging, composite material matrixes and the like with relatively high requirements on comprehensive performance, and has a wide industrial application prospect.

This invention relates to the field of catalyst technology, specifically to a catalyst for the hydrogenation and amination of furfural to produce furfurylamine and its preparation method, comprising the following raw materials in parts by weight: 63-71 parts of support, 14-24 parts of additive, and 2-3 parts of additive; the catalyst for the hydrogenation and amination of furfural to produce furfurylamine is prepared by the following method: Step 1: Preparation of additive, the raw materials of which include porous materials, dopants, composite materials, and magnesium powder; Step 2: Preparation of support, the raw materials of which include γ-alumina, tetrabutyl titanate, and urea; Step 3: Support loading, to obtain a supported support; Step 4: Final preparation, to obtain the catalyst for the hydrogenation and amination of furfural to produce furfurylamine. This invention achieves high activity, high selectivity, and strong stability of the catalyst by precisely controlling the ruthenium-cobalt bimetallic ratio, the titanium-aluminum composite support structure, and the composite additive system.

The application discloses a method for preparing furfurylamine by in-situ extraction fermentation, and belongs to the technical field of bio-chemical industry. In order to solve the problems of strong raw material and product inhibition effect, high concentration of by-products and low concentration of product in the preparation of furfurylamine by biological transamination catalysis, the application provides a method for preparing furfurylamine by in-situ extraction fermentation, specifically, fermentation culture and induction are carried out on a strain, then furfural, an amino donor and glucose are added in a flow manner to carry out a transamination reaction, and an external flow addition of an extractant is carried out to carry out extraction fermentation. The application firstly reduces the generation of by-products by using the biological fermentation technology, simultaneously couples the extraction separation technology to separate furfurylamine in-situ, effectively solves the problems of biological toxicity and multiple side reactions faced by the biological transamination, and realizes the biological fermentation of high-concentration furfurylamine.

The invention belongs to the technical field of polymer materials, and discloses a water-based polyurethane dispersion as well as a preparation method and application thereof. The water-based polyurethane dispersoid is prepared from the following raw materials: A, polyisocyanate; b, polybutadiene polyol; c, a hydrophilic chain extender; d, an end-capping reagent containing a furan ring; e, a small molecule chain extender; and F, a neutralizer. The waterborne polyurethane dispersion provided by the invention adopts polybutadiene polyol with a specific structure as a soft segment and furfuryl amine containing a furan ring as an end-capping reagent, a molecular chain segment of the prepared waterborne polyurethane contains side-chain double bonds and conjugated double bonds, a Diels-Alder reaction can be carried out during high-temperature film forming, post-crosslinking is generated, and the film forming efficiency is improved. And meanwhile, the reversibility of the DA reaction brings self-repairing performance to polyurethane, and the self-repairing polyurethane has a good application prospect in the field of battery negative electrode binders.

This invention discloses a composite modified multi-walled carbon nanotube material, its preparation method, and its application in the adsorption and separation of furfurylamine, belonging to the field of adsorption and separation technology. This invention solves the problems of complex separation conditions, lack of specific adsorbent materials, and low adsorption efficiency in existing biocatalytic systems for furfurylamine. Using multi-walled carbon nanotubes as the matrix, this invention utilizes a composite modification method of first grafting functional monomers and then acidifying the framework to prepare a carbon nanotube composite material for the adsorption and separation of furfurylamine in biocatalytic systems. The multi-walled carbon nanotube composite material after grafting and acidification modification exhibits high adsorption capacity, with the highest adsorption capacity for furfurylamine reaching 220 mg / g.

The application belongs to the technical field of control cable, and discloses a flexible control cable.The flexible control cable comprises an insulating wire core, a shielding layer and a sheath layer.The insulating wire core is formed by extruding an insulating layer on a conductor, the conductor is formed by twisting a plurality of tinned copper wires, and the insulating layer is a polyperfluoroethylene propylene insulating layer.The shielding layer is obtained by braiding a nickel-plated copper wire.The sheath layer is made of a sheath material, and the sheath material is prepared from a flame retardant, isophorone diisocyanate, tetrahydrofuran, furfurylamine, modified nanofiber dispersion liquid and linear polyurethane solution.The linear polyurethane solution is prepared from polytetrahydrofuran diol, isophorone diisocyanate, dibutyltin dilaurate, tetrahydrofuran and a chain extender.The introduction of the chain extender, the flame retardant and the modified nanofiber effectively improves the tensile strength, the flame retardancy, the wear resistance, the bending resistance and the toughness at low temperature of the flexible control cable.Therefore, the application has a wider application prospect.

The invention relates to the technical field of bio-based high polymer materials, and particularly discloses a preparation method of a bio-based modified polyurethane material. The method for preparing the bio-based modified polyurethane material comprises the following steps: dissolving castor oil, polycaprolactone glycol and isosorbide in N, N-dimethylformamide; adding a proper amount of isophorone diisocyanate and a catalyst into the system, and carrying out prepolymerization reaction; then adding hexahydro-1, 3, 5-tris (hydroxyethyl)-s-triazine into the system to carry out a chain extension reaction, and then sequentially adding a certain amount of p-hydroxybenzoic acid, furfuryl amine and 3-aminopropyltriethoxymethylsilane to carry out an end capping reaction; and finally, defoaming and curing to obtain the bio-based modified polyurethane material. Through the synergistic effect of the two end-capping reagents, the strength and toughness of the polyurethane material are synergistically increased.