327 results about "Cardanol" patented technology

The invention relates to the technical field of polyurethane acrylate, and particularly discloses dual-curing polyurethane acrylate resin and a preparation method thereof. Wherein the dual-curing polyurethane acrylate resin is prepared from the following raw materials: polyester polyol, polyether polyol, diisocyanate, hydroxyl acrylate, a chain extender, a photoinitiator, cardanol glycidyl ether, a polymerization inhibitor and modified nanoparticles. Wherein the citric acid and the polyethyleneimine are adopted to carry out synergistic modification on the nano particles, the dispersion stability of the nano particles is improved, so that the mechanical property of the resin is improved, the cardanol glycidyl ether and the photoinitiator generate a synergistic effect, and the resin can be quickly shaped through photocuring promoted by the photoinitiator; the cardanol glycidyl ether participates in the subsequent thermocuring reaction, so that the curing effect is improved, and the adhesive force between the film layer and the base material is enhanced.

The invention relates to the field of packaging materials, and discloses low-temperature heat-sealing water-based coated paper and a preparation method and application thereof.The water-based coated paper comprises a base paper layer and a water-based coating, and the water-based coating comprises water-based ethylene-acrylic acid copolymer emulsion, modified nano-silica, a coalescing agent and water; a cardanol derivative is introduced into the water-based ethylene-acrylic acid copolymer emulsion as a functional component; the cardanol derivative is prepared by reacting epoxidized cardanol with 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and then grafting with acryloyl chloride. The preparation method comprises the following steps: reacting epoxidized cardanol with 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide; the modified nano silicon dioxide is prepared by mixing aminated nano silicon dioxide and chitosan and adding a cross-linking agent prepared by grafting phytic acid and ethylene glycol diglycidyl ether. The water-based coating paper prepared by the invention overcomes the defects that the existing BOPP film is not environment-friendly, and the conventional coating paper is high in heat sealing temperature and easy to stick; meanwhile, good mechanical properties, water resistance and flame retardance are achieved.

The invention discloses a low-temperature polyether demulsifier for oil and gas gathering and transportation and a preparation method thereof, and relates to the technical field of petrochemical engineering, and the preparation method is characterized by comprising the following steps: compounding cardanol, pentaethylenehexamine and bisphenol F according to a specific molar ratio to obtain an initiator, and carrying out formaldehyde condensation to prepare a composite initiator; epoxypropane and ethylene oxide are grafted through staged block copolymerization to form a polyether skeleton; introducing a fluorine-containing epoxy monomer to carry out terminal fluorination modification; finally, adipic acid and epichlorohydrin are subjected to chain extension crosslinking, and the demulsifier with the molecular weight being 8000-12000 Da, the fluorine content being 5.5-6.5 wt% and the PDI being smaller than or equal to 1.3 is prepared. The low-temperature demulsifying agent has the effects of realizing efficient demulsification at low temperature, improving the demulsifying efficiency and reducing the dosage through coordination of the composite initiator, super-hydrophobic permeation of the fluorinated block and accurate regulation and control of the molecular weight, solving the problems of low-temperature failure and easiness in emulsification of a traditional demulsifying agent, and meeting the requirements of low-temperature working conditions of oil and gas gathering and transportation.

The invention relates to a preparation method of a high-viscosity epoxy midcoat curing agent, which mainly comprises the following steps: synthesizing phenolic aldehyde amine intermediates 1 and 2, modifying with epoxy resin E44 and cardanol, and finally adding a functional auxiliary agent for compounding. The paint has the characteristics of high viscosity, rapid curing, high hardness, flat surface and adjustable color and color retention, the raw material cost is remarkably reduced, the environmental protection requirement is met, the environmental pollution is avoided, and the resource utilization efficiency is improved; by optimizing a formula and a process, the problems that a traditional polyamide curing agent is low in curing speed, the surface of a phenolic amine curing agent absorbs moisture and becomes white and oil, and an acid curing agent is subjected to surface shrinkage, is prone to yellowing and is poor in adhesive force are solved, the surface drying time of a final product is 4-6 hours, the hard drying time is 12-24 hours, the shore hardness reaches 80 or above, and all properties reach the national standard; the epoxy floor is suitable for the field of high-strength and wear-resistant epoxy floors, and has both environmental protection and economic benefits.

A preparation method of the cardanol-based phosphorus-containing side group novolac epoxy resin comprises the following steps: (1) in the presence of a catalyst A, carrying out a stirring reaction on cardanol and an aldehyde compound at 80-110 DEG C for 3-10 h to prepare an intermediate A; (2) stirring the intermediate A and a phosphorus-containing compound at 50-150 DEG C to react for 10-24 hours to prepare an intermediate B; and (3) in the presence of a catalyst B, stirring and reacting the intermediate B and epichlorohydrin at 70-110 DEG C for 2-6 hours, and in the presence of a catalyst C, stirring and reacting at 30-65 DEG C for 1-4 hours to prepare the cardanol-based phosphorus-containing side group novolac epoxy resin. Through a rigid structure on a main chain of the novolac epoxy resin, a phosphorus-containing structure on a side chain of the novolac epoxy resin and an epoxy group, the toughness and flame retardance of an epoxy cured product can be improved on the premise that the thermal stability is not reduced, and the novolac epoxy resin has an extremely good application research prospect.

The invention discloses a strong acid and alkali resistant plastic material for fume hood surface decoration and a preparation method of the strong acid and alkali resistant plastic material, belongs to the technical field of plastic material processing, and aims at solving the technical problem that in the prior art, the acid and alkali resistance and the bending modulus of a plastic material for fume hood surface decoration need to be further improved. The preparation method specifically comprises the following steps: stirring amino-modified fluorosilicone resin, paraformaldehyde and 1, 4-dioxane in a reaction kettle, dropwise adding an anacardol solution, heating the reaction kettle to 85-95 DEG C, carrying out heat preservation reaction for 6-8 hours, and carrying out post-treatment to obtain the anacardol-based benzoxazine resin. Perfluoro-modified polysiloxane benzoxazine is prepared, naphthalene-containing epoxy resin and imidazole-modified silicon carbide microspheres are compounded, in-situ catalysis synergistic curing is carried out by using filler interface imidazole, a compact organic-inorganic hybrid interpenetrating network is constructed, and the strong acid and alkali corrosion resistance and bending modulus of the material are remarkably improved.

The invention belongs to the field of coatings, and discloses a broad-spectrum ultraviolet absorbent with a sandwich structure as well as a preparation method and application of the broad-spectrum ultraviolet absorbent. An ultraviolet absorbent is adsorbed on the upper surface and the lower surface of graphene oxide through the action of a hydrogen bond and a pi-pi bond to form a compact ultraviolet absorbent layer, then the surface of graphene oxide is chemically modified through a diamine compound, amino is grafted, and the wide-spectrum ultraviolet absorbent of a'discrete point / surface / discrete point 'sandwich structure is obtained. The ultraviolet absorbent filler, the cardanol-based reactive diluent and the epoxy resin are compounded, so that the ultraviolet aging resistance, the barrier corrosion resistance and the hydrophobicity of the prepared composite coating are synergistically enhanced and exceed those of an anti-ultraviolet epoxy coating material reported at present.

The invention discloses a weather-resistant heat-insulation waterproof coating for an outer wall and a preparation method of the weather-resistant heat-insulation waterproof coating. The waterproof coating comprises the following components in parts by weight: 27-35 parts of modified acrylate polymer emulsion, 35-50 parts of composite filler, 5-10 parts of a curing system, 4-8 parts of a coalescing agent, 0.1-0.5 part of a defoaming agent, 0.3-0.8 part of a flatting agent, 0.2-0.6 part of a mildew preventive, 0.5-1.0 part of a thickening agent and 1-5 parts of a pH regulator, the modified acrylate polymer emulsion is prepared by carrying out pretreatment and silanization modification on cardanol and then carrying out monomer pre-emulsification and free radical polymerization. According to the waterproof coating provided by the invention, a Si-O-C network and a hindered amine free radical capture system are introduced, so that the weather resistance is improved; fluoride-nano silicon dioxide is used for constructing a roughness-low surface energy synergistic waterproof interface; acid-washed fly ash floating beads, silicon dioxide aerogel and expanded perlite filler are compounded to form multiple heat conduction scattering paths so as to realize cross-scale porous filler heat preservation; the waterproof coating can serve in complex environments with large temperature difference fluctuation, acid rain and the like.

The invention discloses a heat-resistant high-strength phenolic resin composite material and a preparation method thereof. The heat-resistant high-strength phenolic resin composite material is prepared from cardanol modified phenolic resin and a fluorinated graphene nano material, a fluorine atom and a carbon atom in the fluorinated graphene are covalently bonded to form a C-F bond; the cardanol modified phenolic resin is prepared from the following raw materials: phenolic substances and formaldehyde; the phenolic substances comprise phenol and cardanol; when the total mass of the phenolic substances is 100%, the mass ratio of the cardanol is 5%-15%; the mass ratio of the fluorinated graphene is 0.1%-0.5% by taking the total mass of the phenolic substances as 100%. The preparation method of the heat-resistant high-strength phenolic resin composite material comprises the following steps: uniformly mixing ethanol dispersion liquid containing fluorinated graphene with cardanol modified phenolic resin by ultrasonic waves to obtain the heat-resistant high-strength phenolic resin composite material.

The invention relates to the technical field of polyurethane, and discloses an elastic waterproof biomimetic membrane as well as a preparation method and application thereof. Polylactic acid dihydric alcohol, an isocyanate monomer, a chain extender and cardanol siloxane-based cellulose are subjected to a polymerization chain extension reaction, and the elastic waterproof biomimetic membrane is obtained. The nano cellulose containing a benzene ring structure, a cardanol flexible long carbon chain and a siloxane structure are introduced into polyurethane, so that the tensile strength and the elongation at break of a polyurethane film are improved. Meanwhile, the hydrophilicity of cellulose is reduced, the water contact angle of the polyurethane film is increased, the waterproof performance is enhanced, and the good practical application is achieved in the waterproof finishing aspect of fabric such as bionic waterproof and moisture permeable films and outdoor jackets.

The invention discloses a full-bio-based epoxy resin composite material based on cardanol modified boron nitride and a preparation method of the full-bio-based epoxy resin composite material. According to the phosphorus-containing cardanol-based flame-retardant epoxy monomer grafted boron nitride flame-retardant heat conduction agent and the phosphorus-containing cardanol-based flame-retardant curing agent grafted boron nitride flame-retardant heat conduction agent provided by the invention, the preparation process is based on a technology of combining molecular design, grafting modification and heat conduction and flame retardance, and hydroxylated boron nitride is grafted and modified by a cardanol-based flame-retardant epoxy monomer; and the flame-retardant and heat-conducting bio-based epoxy resin composite material is obtained by introducing the flame-retardant and heat-conducting bio-based epoxy resin into the epoxy resin, so that the defects of flammability and low heat conductivity of the epoxy resin are overcome, and the application range of the flame-retardant and heat-conducting bio-based

The invention discloses bio-based flame-retardant polyol as well as a preparation method and application thereof. Comprising the following steps: generating bio-based polyol containing 3-5 hydroxyl functionalities from raw cardanol and hydroxy ketone under the catalysis of strong acid ion exchange resin, and reacting with bromine to generate the bromine-containing bio-based flame-retardant polyol. The bio-based polyol prepared by the method is good in flame retardant property, a carbamate bond generated by a phenolic hydroxyl group and isocyanate can be reversibly decomposed at a relatively low temperature, and the bio-based polyol has good recycling performance and high bio-based content and is a green and environment-friendly bio-based material.

The invention relates to the technical field of polymer synthesis and application, and particularly discloses novel phenolic amide based on cardanol as well as a preparation method and application of the novel phenolic amide. The preparation method of the novel phenolic amide based on cardanol comprises the following steps: cooling 15C cardanol at a low temperature, reacting through mixed gas of O3 and O2 to obtain 8C carboxyl phenol, reacting with a first amine component to obtain modified cardanol amide, mixing and stirring the modified cardanol amide and a second amine component, adding an aldehyde component, and reacting to obtain the novel phenolic amide based on cardanol. The novel phenolic amide based on cardanol can be used as an epoxy resin curing agent and has the characteristics of high amine value, low viscosity and quick drying, and a formed paint film has good appearance and excellent application performance.

The invention relates to the field of printing ink, and discloses cross-linked polymer micronized wax powder for printing ink and a preparation method thereof.According to the printing ink, a wax monomer is introduced into epoxy acrylate, and a core-shell polymer emulsion is prepared through a soap-free core-shell emulsion polymerization method, a polymer formed by butyl acrylate, acrylic acid, a functionalized silane coupling agent and a comonomer is taken as a shell, and the cross-linked polymer micronized wax powder for the ink is prepared by adopting a spray drying process; the functionalized silane coupling agent is prepared by reacting a modified silane coupling agent obtained by reacting vinyltrimethoxysilane with tetramethyldisiloxane with eugenol to prepare an eugenol-based modified silane coupling agent, and then reacting the eugenol-based modified silane coupling agent with isocyano ethyl methacrylate; the comonomer is prepared by reacting eugenol, cardanol and 1, 4-p-xylylene dichloride, and the obtained product has the antibacterial property, water resistance and adhesive force of a shell layer monomer and the mechanical property, heat resistance and antibacterial property of a core layer monomer.

The invention relates to the technical field of electronic product shells, in particular to a glass fiber reinforced mobile phone rear cover and a preparation process thereof. The preparation method comprises the following steps: 1, uniformly mixing epoxy resin, cardanol-based epoxy resin, organic silicon modified benzoxazine, a curing agent and an accelerant to obtain an epoxy resin glue solution; 2, coating the epoxy resin glue solution on the surface of glass fiber cloth, and curing to obtain a glass fiber prepreg; 3, a plurality of glass fiber prepregs are taken to be stacked and laid, integrated forming is achieved through hot pressing, and a laminated board is obtained; 4, uniformly mixing the epoxy resin glue solution, the modified molybdenum disulfide and acetone to obtain a protective coating; and 5, sequentially arranging a priming layer, a transfer printing layer and a packaging layer on the laminated board, spraying a protective coating, and curing to form a protective layer to obtain the mobile phone rear cover.

The invention belongs to the technical field of nano composite materials, and particularly provides a corrosion-resistant flexible carbon nano polymer coating and a preparation method thereof, and the corrosion-resistant flexible carbon nano polymer coating comprises phenolic resin, bisphenol F epoxy resin, GO-NH2, self-repairing polyimide, a BYK-011 defoaming agent, talcum powder, polytetrafluoroethylene, a BYK333 flatting agent, silicon carbide, a B215 composite antioxidant, a UV531 ultraviolet light absorber and cardanol. The corrosion-resistant flexible carbon nano polymer coating prepared by the invention has excellent mechanical strength and wear resistance, good flexibility, efficient self-repairing capability and lasting corrosion resistance, the service life of the coating can be effectively prolonged, and the protection requirement in a severe environment is met.

The invention relates to the field of pipes, and discloses a high-strength CPVC pipe and a preparation method thereof.The pipe comprises CPVC resin, modified multi-walled carbon nanotubes, modified nano silicon dioxide and auxiliaries; the modified multi-walled carbon nanotubes are prepared by grafting phosphorus-containing cardanol derivative based benzoxazine and oxidized multi-walled carbon nanotubes; phosphorus-containing cardanol derivative benzoxazine reacts with 1, 5-naphthylenediamine to prepare an aldehyde cardanol intermediate, the aldehyde cardanol intermediate is prepared by reacting paraformaldehyde with hydrogenated cardanol, the obtained cardanol derivative and DOPO are subjected to addition, and then the obtained phosphorus-containing cardanol derivative reacts with paraformaldehyde and 3-aminopropyltriethoxysilane to prepare the flame retardant. The modified nano silicon dioxide is prepared by introducing polyethylene glycol into the surface of isocyanated nano silicon dioxide and grafting with 3, 5-bis (tert-butyl)-4-hydroxybenzene propionyl chloride, and the pipe prepared by the invention is high in tensile strength and impact strength and has good long-acting oxidation resistance, high temperature resistance and flame retardance.

This invention discloses a bio-based flame-retardant thermally expanding powder coating and its preparation method, relating to the field of coatings. It comprises the following components: bio-based epoxy resin, phenolic epoxy curing agent, ammonium polyphosphate, nano-titanium dioxide, zinc borate, expanded graphene, 8-12 parts of imidazole, benzoin, and a leveling agent. The bio-based epoxy resin is prepared by ring-opening copolymerization of cashew phenol glycidyl ether and linoleic acid prepolymer, followed by epoxy end-capping, with an epoxy equivalent of 900-1200 g / eq; the phenolic epoxy curing agent has an epoxy equivalent of 200-250 g / eq; and the expanded graphene has an initial expansion ratio of 200-300 times. The preparation method employs a two-step, staged mixing process. This invention, while maintaining zero VOC in powder coatings and the same film thickness, achieves for the first time the outstanding performance of 6H hardness, UL94V-0 flame retardancy, and 120 times expansion ratio through the systematic synergy of high epoxy equivalent bio-based resin, four-component complete flame retardant system, specific EG:APP ratio, and two-step process.

The present application belongs to the technical field of protective coating, and relates to a protective coating with reverse enhanced adhesion, a preparation method and application thereof. The protective coating is composed of component A and component B. The preparation raw materials of component A include water-based epoxy resin emulsion, cashew phenol glycidyl ether, wetting penetrant and defoaming agent. The preparation raw materials of component B include phenolic amine curing agent, alicyclic amine curing agent, dopamine, 2,4,6-tris(dimethylaminomethyl)phenol and pigment filler. The dopamine and the phenolic amine curing agent and the alicyclic amine curing agent are grafted under the action of 2,4,6-tris(dimethylaminomethyl)phenol to form a modified curing agent. The coating has low requirements for surface treatment, high adhesion in dry and humid environments and presents the characteristics of "reverse enhanced adhesion".

The application discloses a waterproof coating for outer wall weather resistance, heat insulation and heat preservation and a preparation method thereof. The waterproof coating comprises the following components in parts by weight: modified acrylate polymer emulsion 27-35 parts, composite filler 35-50 parts, curing system 5-10 parts, film forming aid 4-8 parts, defoaming agent 0.1-0.5 parts, leveling agent 0.3-0.8 parts, mildew-proof agent 0.2-0.6 parts, thickening agent 0.5-1.0 parts and pH regulator 1-5 parts. The modified acrylate polymer emulsion is prepared by pretreating and silanization modifying cardanol, monomer pre-emulsification and free radical polymerization. The waterproof coating provided by the application introduces Si-O-C network and hindered amine free radical capture system to improve weather resistance; fluorine compound-nano silicon dioxide constructs roughness-low surface energy synergistic waterproof interface; acid washing fly ash floating beads, silica aerogel and expanded perlite filler are compounded to form multiple heat conduction scattering paths to realize cross-scale porous filler heat preservation; and the waterproof coating can serve in complex environments such as large temperature difference fluctuation and acid rain.

The invention discloses a polyurethane antifouling paint and a preparation method thereof, and belongs to the field of paints.The preparation method comprises the steps that cardanol and formaldehyde are subjected to polycondensation to form a cardanol aldehyde prepolymer, then the cardanol aldehyde prepolymer, polyether polyol and isophorone are mixed and react, and cardanol modified polyurethane is obtained; and mixing a volatile solvent, a flatting agent, nano silicon dioxide, perfluoropolyether oil and cardanol modified polyurethane to obtain the polyurethane antifouling paint. The cardanol structure is introduced, so that the film-forming property of the coating can be improved, active sites can be provided for subsequent polyurethane modification, the cohesion of the coating is enhanced to a certain extent, and the coating is more wear-resistant by matching with the nano silicon dioxide; the cardanol modified polyurethane combines the advantages of cardanol, polyether polyol and isophorone diisocyanate, and perfluoropolyether oil has extremely low surface energy, and can effectively inhibit the adhesion of marine organisms and play an antifouling role under the combined action of the perfluoropolyether oil and other components.

The invention relates to the technical field of coatings, and provides a high-solid-content solvent-free high-build epoxy resin coating as well as a preparation method and application thereof.The coating comprises a first component and a second component, the first component comprises modified epoxy resin, a reactive diluent, a filler and an auxiliary agent; the second component comprises a modified curing agent, a composite accelerant and a retarder; the composite accelerant is formed by compounding modified nano zinc oxide and a composite catalyst; the modified nano-zinc oxide is prepared by reacting KH560 with nano-zinc oxide and then reacting with 3-sulfonic acid propyl methacrylic acid potassium salt; the composite catalyst is formed by compounding imidazolium salt ionic liquid and triethanolamine. A flexible chain segment is introduced into the modified epoxy resin to reduce viscosity, the modified curing agent adopts cardanol and mixed amine to be compounded to regulate and control reaction, and the composite accelerant and the retarder cooperate to catalyze and control speed; the problems of incomplete curing and low performance caused by the fact that the diffusion of a curing agent in a thick coating of the high-solid-content solvent-free thick paste type epoxy resin coating is blocked are solved.

The present invention provides a polymer composition for coating, and a coating composition comprising same, the polymer composition comprising a polymer that comprises: a unit (a) derived from a cardanol composition; and a unit (b) derived from a styrene-based monomer, wherein the purity of the cardanol composition is greater than 85%. The coating composition comprising the polymer composition for coating may have excellent drying speed, color, and coating film properties.

The application belongs to the technical field of epoxy resin adhesives, and more particularly relates to a high-tensile single-component bio-based epoxy structural adhesive as well as a preparation method and application thereof. The application realizes the synergistic optimization of rigidity, toughness and interfacial bonding force from the molecular structure level by constructing a multi-element synergistic epoxy matrix network with bisphenol A type liquid epoxy resin as a rigid main matrix, rubber modified epoxy resin as a toughness enhancing phase, polyurethane modified epoxy resin as a flexible buffer phase and cashew phenol based epoxy blend as a bio-based enhancing phase. Meanwhile, by adjusting the proportions of latent curing systems, water removal agents and thixotropic systems, the synergistic effect among the components is fully utilized, and the synchronous improvement of high tensile strength, high fracture toughness, good storage stability and high efficiency curing at medium temperature is realized, which perfectly meets the high-end application requirements for high performance, environmental protection and automatic construction of structural adhesives in the process of automobile lightweight integration.

The invention relates to the technical field of drilling fluids, and discloses a high-temperature-resistant sulfonated phenolic resin for a drilling fluid and a preparation method thereof.The preparation method of the high-temperature-resistant sulfonated phenolic resin for the drilling fluid comprises the steps that 50-65 mL of N, N-dimethylformamide solvent, 2-4 parts by weight of benzenesulfonic acid modified phenolic resin and 0.01-0.02 part by weight of pyridine are added into a reactor; after stirring and dissolving, continuing to add 5-10 parts by weight of modified cardanol, reacting at 60-68 DEG C, and after the reaction is finished, performing reduced pressure distillation and filtering to obtain the high-temperature-resistant sulfonated phenolic resin for the drilling fluid. The high-temperature-resistant sulfonated phenolic resin for the drilling fluid has relatively good temperature-resistant and salt-resistant effects.

This invention discloses a cashew nut shell bisphenol and its preparation method and application. The preparation method of the bisphenol is as follows: First, cashew nut shell phenol, formaldehyde, and an alkaline catalyst are mixed and stirred evenly, and reacted at a certain temperature to obtain hydroxymethylated product A; product A is washed with water several times until the pH is neutral, and then centrifuged to remove water to obtain product B; product B is mixed with phenol and an acidic catalyst and stirred evenly, and reacted at a certain temperature to obtain product C after the phenol-alcohol reaction; product C is washed with water until neutral, and then distilled under reduced pressure to obtain the cashew nut shell bisphenol product. This invention utilizes the structural characteristics of cashew nut shell phenol, which has both a benzene ring and an alkane chain, to obtain a bisphenol structure that combines the rigidity of the benzene ring with the toughness of the long alkane chain on cashew nut shell phenol, while protecting the highly reactive phenolic hydroxyl group. Moreover, this bisphenol is green and low in toxicity, meeting the requirements of environmental protection and sustainable development. The epoxy coating prepared using this bisphenol has high crosslinking density, good corrosion resistance, and excellent mechanical properties.

A cardanol based coupling agent is disclosed. The coupling agent is obtained by reacting 3-pentadecyl phenol ethoxylate with sulfur to obtain a sulfurized 3-pentadecyl phenol ethoxylate and reacting the sulfurized 3-pentadecyl phenol ethoxylate with a carbonyl compound. A process for preparing a cardanol based coupling agent is also disclosed. The process comprises reacting 3-pentadecyl phenol ethoxylate with sulfur to obtain a sulfurized 3-pentadecyl phenol ethoxylate and reacting the sulfurized 3-pentadecyl phenol ethoxylate with a carbonyl compound.

The application relates to the technical field of drilling fluids, and discloses a high-temperature-resistant sulfonated phenolic aldehyde resin for drilling fluids and a preparation method thereof. The preparation method of the high-temperature-resistant sulfonated phenolic aldehyde resin for drilling fluids is as follows: 50-65 mL of N,N-dimethylformamide solvent, 2-4 parts by weight of benzene sulfonic acid modified phenolic aldehyde resin and 0.01-0.02 parts by weight of pyridine are added into a reactor, after stirring and dissolving, 5-10 parts by weight of modified cardanol is continuously added, reaction is carried out at 60-68 DEG C, after the reaction is finished, vacuum distillation is carried out, and filtration is carried out, so that the high-temperature-resistant sulfonated phenolic aldehyde resin for drilling fluids is obtained. The high-temperature-resistant sulfonated phenolic aldehyde resin for drilling fluids has good temperature resistance and salt resistance.

The invention discloses a plant-based insulating material as well as a preparation method and application thereof, and relates to the technical field of polymers. According to the plant-based insulating material disclosed by the invention, the cardanol-based epoxy resin is adopted as a matrix, and meanwhile, the DMM (4, 4 '-diaminodiphenylmethane) and the MHHPA (methylhexahydrophthalic anhydride) in a specific proportion are adopted as curing agents to cure the matrix, so that the insulating material with high toughness and low internal stress is obtained, the elongation at break is up to 13.1% or above, and the plant-based insulating material has the advantages of high toughness and low internal stress. Compared with the traditional insulating material prepared by taking bisphenol A epoxy resin as a matrix, the insulating material disclosed by the invention has higher toughness and lower internal stress, and the breakdown voltage is not lower than 32.8 kV.

The invention discloses a crude oil flow modifier and a preparation method thereof, and belongs to the technical field of oilfield development. An active component in the crude oil flow modifier is a quadripolymer generated through reaction of octadecyl acrylate, maleic anhydride, cardanol and acrylamide, alkyl long chains in octadecyl acrylate and cardanol can prevent wax crystals from forming a three-dimensional network structure through adsorption and eutectic effects, and the purpose of dispersing the wax crystals is achieved; oxygen atoms in octadecyl acrylate and maleic anhydride, benzene rings and hydroxyl in cardanol and acylamino in acrylamide can hinder asphaltene aggregation through the effects of pi-pi conjugation, hydrogen bonds, steric hindrance and the like, so that the effect of dispersing asphaltene is achieved, and finally viscosity reduction and pour point depression of the high-wax and high-asphaltene crude oil are achieved.