516 results about "Polybutadiene" patented technology

The invention relates to an epoxy core-shell polymer particle and resin, a preparation method of the epoxy core-shell polymer particle and resin and application of the epoxy core-shell polymer particle and resin to epoxy resin. The preparation method of the epoxy core-shell polymer particle comprises the following steps: heating and mixing a polybutadiene seed emulsion, a reducing agent, an emulsifier and the like; adding methyl methacrylate and an initiator, and glycidyl methacrylate and an initiator, and heating to react; compared with the prior art, the core-shell particle with the outer layer of the synthesized shell containing the epoxy group can be used for toughening the epoxy resin, so that the toughness of the epoxy resin is effectively improved while the excellent heat resistance and mechanical properties of the epoxy resin are maintained.

The invention belongs to the technical field of packaging materials, and discloses a high-temperature-resistant heat-seal straw-pluggable easy-to-tear cover and a preparation method thereof.The body comprises a PET layer, a blocking layer and a PE layer which are sequentially compounded from outside to inside, the blocking layer is an AL layer, laser invisible pre-scribed lines are arranged on the easy-to-tear cover, the laser invisible pre-scribed lines only penetrate through the PET layer and the blocking layer and do not penetrate through the PE layer, the thickness of the PET layer ranges from 12 micrometers to 20 micrometers, and the thickness of the PE layer ranges from 12 micrometers to 20 micrometers. The barrier layer is an AL layer, the thickness of the AL layer is 7-12 microns, the thickness of the PE layer is 40-60 microns, and the PET layer is prepared from the following raw materials in parts by weight: 80-95 parts of PET resin, 5-10 parts of composite modified nano silicon dioxide, 3-6 parts of a heat stabilizer and 0.5-2 parts of a lubricant; the composite modified nano silicon dioxide is maleic anhydride grafted polybutadiene composite modified nano silicon dioxide, and the composite modified nano silicon dioxide is uniformly dispersed in a PET matrix by virtue of good compatibility with PET resin, so that the overall toughness and heat sealability of the easy-to-tear cover are remarkably enhanced.

The invention relates to the technical field of layered materials, and discloses a low-temperature-resistant polyurethane transfer film and a preparation method thereof. The multi-layer structure heat transfer film with a glue layer and a polyurethane-based transfer layer is prepared, and a photo-curing transfer layer material containing polyurethane acrylate containing polyether, polybutadiene blocks and organic silicon branched chains with good low-temperature resistance and sulfhydrylation graphene oxide with excellent far infrared performance is prepared; the low temperature resistance and the water resistance of the heat transfer film are effectively improved.

The invention belongs to the technical field of RAP recycled asphalt mixtures, and particularly relates to a high-dosage RAP recycled asphalt mixture for alpine regions and a preparation method of the high-dosage RAP recycled asphalt mixture. The high-dosage RAP recycled asphalt mixture for the alpine region is characterized by comprising the following components in percentage by mass: 50-60% of RAP, 3-6% of mineral powder, 1-3% of new asphalt, 1-2% of a composite regenerant, 1-2% of a modifier and the balance of a new aggregate, the composite regenerant is composed of pine tar, plant-based epoxy ester oil, cashew nut shell oil and a penetrant. The modifier is prepared from regenerated low-density polyvinyl chloride, hyperbranched epoxy resin and liquid polybutadiene rubber coated waste rubber powder. According to the technical scheme provided by the invention, the technical problems of poor low-temperature performance, water stability and freeze-thaw cycle stability when a high-dosage RAP recycled asphalt mixture is used in an alpine region are solved.

The invention discloses a copper-clad plate material containing elastomer resin and a preparation method of the copper-clad plate material, and belongs to the technical field of new materials. The method comprises the following steps: mixing a styrene-butadiene-styrene block copolymer with polybutadiene rubber, adding nano-montmorillonite, and carrying out intercalation modification through hexadecyl trimethyl ammonium bromide to prepare nano-modified elastomer resin; the preparation method comprises the following steps: mixing polybutylene terephthalate with nano silicon dioxide, and carrying out surface modification by gamma-aminopropyltriethoxysilane and hexamethyldisilazane to obtain a resin matrix; mixing the two phases, adding citric acid, and carrying out microwave heating and high-shear dispersion to obtain a discrete material; carrying out hot pressing on the dispersion, adding polyurethane and polylactic acid, uniformly mixing, adding polydimethylsiloxane and sodium dodecyl benzene sulfonate, and curing to obtain a cured product; and coating the surface of the cured product with a nano-copper layer. The material has the characteristics of high peel strength, low dielectric loss, low water absorption and low thermal expansion, and is suitable for the field of high-speed low-loss copper-clad plates.

The invention discloses a high-strength, low-temperature-resistant and aging-resistant polymer rubber material and a preparation method thereof in the technical field of rubber materials. The high-strength, low-temperature-resistant and aging-resistant polymer rubber material comprises the following components in parts by weight: 100-120 parts of a rubber matrix, 44-62.5 parts of an interface auxiliary agent, 8-15 parts of a vulcanization system, 4-5 parts of a protection system and 8-12 parts of a toughening agent. According to the invention, a multi-component synergistic system is constructed by the multifunctional reinforcer, amino-terminated polysiloxane, amino-terminated polybutadiene and epoxidized soybean oil, and meanwhile, a carbon black / Si-69 interface assistant and a protection / vulcanization system are optimized, so that the synergistic improvement of mechanical properties, low temperature resistance and aging resistance is achieved; the technical problems that traditional rubber is single, excellent in performance and unbalanced in comprehensive performance are solved.

The invention discloses polybutadiene latex, a preparation method thereof and transparent ABS (Acrylonitrile Butadiene Styrene) resin. In the preparation process of the polybutadiene latex, the emulsifier is additionally added at a relatively high conversion rate to promote the reaction to generate part of latex particles with small particle sizes. When the latex prepared by the method is used for further preparing the transparent ABS resin, since the latex with the particle size of 30-70nm has a rayleigh scattering effect to a certain extent, a small amount of blue light can be scattered, so that the yellow index of the resin is reduced, and the prepared transparent ABS has better hue.

The low-VOC modified melamine formaldehyde resin is prepared from the following components in parts by weight: 80 to 100 parts of melamine formaldehyde resin, 5 to 10 parts of hydroxyl-terminated hyperbranched polyester, 8 to 15 parts of epoxy-terminated polybutadiene, 1 to 3 parts of fumed silica, 5 to 15 parts of polyvinyl butyral, 0.1 to 0.2 part of a coupling agent, 1 to 3 parts of a catalyst and 2 to 5 parts of a cross-linking agent, the preparation method comprises the following steps: in a stirring state, adding hydroxyl-terminated hyperbranched polyester, epoxy-terminated polybutadiene, a polyvinyl butyral resin solution and coupling agent modified fumed silica into a melamino-formaldehyde resin solution, heating to 50-70 DEG C, and adding a catalyst and a cross-linking agent; the melamine modified resin prepared by the components and the preparation method has the characteristics of low formaldehyde volatilization, high toughness and durability.

The invention provides a flexible switching production method and equipment for low cis-polybutadiene rubber (LCBR), solution polymerized styrene-butadiene rubber (SSBR) and hydroxyl-terminated liquid polybutadiene rubber (HTPB), the flexible switching production equipment comprises an initiator production device and a polymerization unit, and the flexible switching production method comprises the following steps: mixing cyclohexane and n-hexane according to a volume ratio of 6.5: 3.5-7: 3, adding an initiator, and stirring to obtain a mixture; forming a mixed solvent; the method comprises the following steps: adding a monomer, an active agent, an initiator and a mixed solvent into a polymerization kettle 31 of a polymerization unit, and carrying out polymerization reaction to obtain a low-cis-polybutadiene, solution polymerized styrene-butadiene or hydroxyl-terminated liquid polybutadiene rubber solution; a novel protection initiator tert-butyl dimethyl siloxy propyl sodium is designed, and hydroxyl-terminated liquid polybutadiene rubber with a controllable structure is prepared through anionic living polymerization. According to the process, shutdown for kettle cleaning is not needed, the low cis-polybutadiene, the solution polymerized styrene-butadiene and the hydroxyl-terminated liquid polybutadiene rubber can be produced on the same polymerization device in a flexible switching manner, and the overall production efficiency is improved.

The application discloses a kind of solution polybutadiene rubber particle conveying devices, it is related to conveying technical field, including belt conveyor, and belt conveyor is provided with distributing device and discharging device, and discharging device is located above distributing device, discharging device can quantitatively release rubber particles, and the discharge port of discharging device is provided with multilayer mouth structure, and the outside of multilayer mouth structure is connected with multidirectional traction structure, the present application is quantitatively filled with rubber particles by discharging device and releases, and the released rubber particles are layered and buffered by multilayer mouth structure Release, avoid the direct impact of rubber particles on belt conveyor, resulting in ejection to outside, reduce the waste of rubber particles, and the width of internal communication of multilayer mouth structure is expanded by multidirectional traction structure traction, so that the width of internal communication of multilayer mouth structure is larger, so as to avoid the blockage of rubber particles on discharging device and multilayer mouth structure.

To provide a hydrogenated copolymer capable of achieving superior processability and fuel-saving performance when formulated into a resin composition, while exhibiting excellent handling properties when used alone.SOLUTION: A hydrogenated copolymer comprises: a hydrogenated block copolymer (X) having at least one polybutadiene block (A) with a vinyl group content of 20 mass% or less; and a polymer (Y) including structural units derived from an aromatic vinyl compound and / or structural units derived from a conjugated diene compound, wherein the ratio of the number average molecular weight of the hydrogenated block copolymer (X) to the number average molecular weight of the polymer (Y) is 2.5 or more and 30 or less.SELECTED DRAWING: None

The invention discloses a composite coating diaphragm and a preparation method thereof and a secondary battery, the composite coating diaphragm comprises a base membrane and a composite functional coating compounded on the surface of the base membrane, the composite functional coating comprises a first functional coating relatively close to the base membrane and a second functional coating relatively far away from the base membrane, the porosity of the first functional coating is smaller than that of the second functional coating, and the raw material components of the first functional coating comprise modified nanocellulose obtained by double-grafting cis-1, 4-polybutadiene and polyethylene glycol chain segments and gas-phase aluminum oxide. By constructing a diaphragm coating with a gradient pore structure and combining an advanced material modification technology, the composite coating diaphragm integrates high thermal stability, excellent electrolyte wettability and low-temperature adaptability, and can still keep stable structure and interface characteristics under an extreme temperature working condition; therefore, the method has good expandability and industrial application prospects, and is suitable for development and application requirements of high-performance lithium ion batteries and next-generation energy storage devices.

A tire comprising a rubber composition comprising, based on 100 parts per weight elastomer, a silane-coupled carbon nanotube (CNT) in a polybutadiene masterbatch. The rubber composition further comprises a first elastomer mixed with the masterbatch. The first elastomer can be the same as or different from the polybutadiene in the masterbatch. The rubber composition optionally comprises a second elastomer mixed with the masterbatch. A total elastomer in the rubber composition comprises from about 25 phr to about 75 phr of polybutadiene and from about 25 to about 75 phr of at least the first or second elastomer.

A thermosetting composition for injection molding comprising: (A) a compound represented by the following formula (A2) or (A3), and (B) a thermal polymerization initiator; wherein the composition further comprises no (G) titanium oxide or comprises (G) titanium oxide, when the composition comprises the component (G), the content of the component (G) is 5 parts by mass or less, based on a total of 100 parts by mass of components other than the component (B) and the component (C); and the composition comprises no polybutadiene di(meth)acrylate:

The invention discloses chain end modified liquid rubber, mixed rubber, a preparation process, a tire and a vehicle, and belongs to the technical field of liquid rubber and manufacturing thereof. According to the liquid rubber, butadiene monomers and a chain transfer agent are added in batches in the preparation process, negative ion active centers are frequently transferred to the chain transfer agent from the tail end of a polybutadiene-based lithium active chain to form new initiation growth centers, then newly introduced butadiene monomers are initiated to grow, the dosage of an n-butyllithium initiator is remarkably reduced, and the stability of the liquid rubber is improved. The production cost is greatly reduced, the generation of sewage is greatly avoided, the monomer concentration of the final rubber product can reach about 80 percent by weight, the productivity is improved, and large-scale production is facilitated; the rubber also enables the filler to have good dispersibility, and has good compatibility with base rubber such as styrene butadiene rubber, natural rubber and the like.

The invention belongs to the technical field of polymer materials and electric wires and cables, and discloses a high-toughness cable composite material and a preparation method and application thereof. The preparation method comprises the following steps: (1) adding silane-terminated liquid polybutadiene, hydroxyl silicone oil and an organic tin catalyst into an anhydrous solvent, uniformly mixing, heating to 80-100 DEG C, carrying out dealcoholization condensation reaction, and evaporating to remove the solvent after the reaction is completed, so as to obtain an organic silicon modified polybutadiene cross-linking agent; and (2) adding the obtained organic silicon modified polybutadiene cross-linking agent, PE, EVA, a reinforcing filler and an initiator into an extruder in an oxygen-free atmosphere, carrying out melt blending cross-linking reaction, and carrying out extrusion molding to obtain the high-toughness cable composite material. Compared with a conventional vinyl silane cross-linking agent, the organic silicon modified polybutadiene cross-linking agent disclosed by the invention can remarkably improve the mechanical strength, flexibility and weather resistance of the obtained cross-linked polyethylene composite material.

Provided is a binder for an electrode of a lithium secondary battery, said binder being capable of suppressing an increase in internal resistance due to charge and discharge. A binder for an electrode of a lithium secondary battery according to an embodiment contains an aqueous dispersion of a polyurethane salt obtained by reacting components (A), (B), (C), and (D), the polyurethane salt substantially not containing a structure derived from an amine-based chain extender: (A) a polyisocyanate component; the polyurethane resin contains at least one selected from the group consisting of diphenylmethane diisocyanate and a modified body thereof; (B) a polyol component comprising a hydrogenated polybutadiene polyol; (C) carboxylic acid containing an active hydrogen group; and (D) water as a chain extender.

The invention belongs to the technical field of copper-clad plate materials, and particularly relates to a low-dielectric low-loss resin composition and a product and a preparation method thereof. The low-dielectric low-loss resin composition comprises the following components in parts by weight: 30-70 parts of polyphenyl ether; 10 to 50 parts of modified bismaleimide; 30 to 70 parts of a poly (1, 2-butadiene styrene) copolymer; 5 to 20 parts of partially hydrogenated poly (1, 2-butadiene); 1-10 parts of a cross-linking agent; 40 to 300 parts of an inorganic filler; 10 to 50 parts of a flame retardant; and 1-5 parts of a catalyst. The low-dielectric and low-loss resin composition provided by the invention maintains a low dielectric constant and low dielectric loss and also has a low thermal expansion coefficient, and a product prepared from the resin composition can meet the processing and application requirements of high-density, miniaturized and high-frequency and high-speed electronic devices.

The invention discloses artificial board emulsifying wax, which is prepared from the following raw materials in percentage by mass: 25 to 40 percent of paraffin, 3 to 5 percent of compound emulsifier, 2 to 4 percent of cationic starch, 3 to 7 percent of liquid polybutadiene and 44 to 67 percent of water, the compound emulsifier is a nonionic emulsifier, and the hydrophilic-lipophilic balance value is 9-10. The artificial board emulsifying wax is good in waterproofness and high in strength when applied to artificial boards.

The invention discloses an ultralow-temperature-resistant and seawater-corrosion-resistant coating and a preparation method thereof. The ultralow-temperature-resistant and seawater-corrosion-resistant coating is prepared from ultralow-temperature-resistant and seawater-corrosion-resistant finish paint and graphene epoxy zinc-rich primer, the ultralow-temperature-resistant seawater-corrosion-resistant finish paint is prepared from a component A and a component B, wherein the component A is prepared from the following raw materials: low-temperature-resistant epoxy resin, fluorocarbon resin, graphene, nano rare earth oxide, a silane coupling agent, an anti-rust pigment, filler, a solvent and the like; the component B is composed of an amine curing agent, and the low-temperature-resistant epoxy resin is prepared according to the following steps: adding epoxy resin and polysiloxane into a reaction kettle, stirring and reacting while heating, adding epoxidized hydroxyl-terminated polybutadiene into the reaction kettle, and continuously stirring and reacting to obtain the low-temperature-resistant epoxy resin. The ultralow-temperature-resistant and seawater-corrosion-resistant coating disclosed by the invention has excellent corrosion resistance in ultralow-temperature seawater, and the service life of a metal structure is effectively prolonged.

To provide a thermosetting adhesive composition which has, after thermally cured, a low dielectric constant, a low dielectric loss tangent, a low temperature change rate of the dielectric loss tangent, and good bending resistance.SOLUTION: A thermosetting adhesive composition for bonding between substrates is provided, containing with respect to 100 pts.mass of the total of the thermosetting adhesive composition, 65 to 90 pts.mass of a styrenic elastomer, as crosslinking components, 5 to 20 pts.mass of (A) a modified polyphenylene ether resin having a radical polymerizable group at a molecular terminal, 4 to 10 pts.mass of (B) polybutadiene and / or polyisoprene having a weight average molecular weight of 10,000 to 50,000, a radical polymerization initiator, and an epoxy resin, wherein the total of the contents of the radical polymerization initiator, the epoxy resin and the epoxy resin curing agent is 10 pts.mass or less, a styrenic elastomer having a styrene ratio of less than 67% is contained as the styrenic elastomer, and the total of the content of the component (A) and the content of the component (B) is 25 pts.mass or less.SELECTED DRAWING: Figure 1

This invention discloses a composite additive for repairing the foaming properties of recycled polystyrene, relating to the field of recycled polystyrene. It comprises: 30-50 parts of a matrix repair component, 20-35 parts of a nucleating-reinforcing composite component, 10-20 parts of an antibacterial and flame-retardant composite component, and 5-10 parts of a dispersant. Modified rosin ester and polybutadiene oligomers are used as the matrix repair component, combined with nano-calcium carbonate and talc as the nucleating-reinforcing composite component, and further combined with phytic acid and quaternized chitosan functional components and zinc stearate dispersant to form a stable composite system. This system imparts antibacterial and flame-retardant properties to the product, solving the problem of single-function traditional additives, significantly improving the quality of recycled material products, realizing high-value utilization of recycled materials, and simultaneously repairing damaged molecular chains in recycled materials, improving processing flowability and cell nucleation effect, thus compensating for the deficiency of reduced foaming performance in recycled polystyrene.

The invention discloses a high-temperature-resistant low-friction-coefficient low-abrasion sealing material and a preparation method thereof, and belongs to the technical field of sealing materials. The sealing material is prepared from the following raw materials in parts by mass: 60 to 80 parts of hydrogenated butadiene-acrylonitrile rubber, 20 to 40 parts of hydrogenated carboxyl butadiene-acrylonitrile rubber, 40 to 50 parts of carbon black N234, 4 to 6 parts of modified carbon fiber, 2 to 4 parts of modified hexagonal boron nitride, 3 to 5 parts of liquid polybutadiene, 3 to 4 parts of composite vulcanizing agent, 2 to 3 parts of zinc oxide, 1 to 2 parts of rubber anti-aging agent 445, 1 to 2 parts of anti-aging agent MB, 0.2 to 0.5 part of accelerant BZ and 0.5 to 2 parts of stearic acid. The modified carbon fiber is obtained by growing molybdenum disulfide on the surface of carbon fiber in situ and performing amination modification, the modified hexagonal boron nitride is obtained by performing grafting reaction on hydroxylated hexagonal boron nitride and an epoxy silane coupling agent, and the sealing material provided by the invention has high wear resistance and high temperature resistance.

The invention discloses a two-component polyurethane adhesive as well as a preparation method and application thereof, and the adhesive comprises a component A and a component B in parts by weight, the component A is prepared from 15 to 30 parts of hydroxyl-terminated polybutadiene, 20 to 40 parts of polyester polyol, 5 to 15 parts of epoxy modified polyether polyol, 1 to 5 parts of phosphate ester, 1 to 5 parts of micromolecular dihydric alcohol chain extender, 2 to 10 parts of silane coupling agent, 1 to 5 parts of thixotropic agent, 20 to 50 parts of filler, 5 to 15 parts of flame retardant and 0.1 to 0.5 part of catalyst; the component B is prepared from the following components in parts by weight: 60 to 80 parts of polyisocyanate and 20 to 40 parts of polyurethane prepolymer. The bi-component polyurethane adhesive is used for bonding SMC or metal, has high strength and high elasticity, balances the thermal expansion coefficient difference between the SMC and the metal, and can realize reliable bonding of the SMC without complex surface treatment.

Expandable styrene polymers comprising polymeric brominated flame-retardant, wherein the polymeric brominated flame-retardant comprises at least one brominated polybutadiene block having a bromination degree between 33 and 75%, based on the double bonds in the polybutadiene block before bromination, a process for producing such expandable styrene polymers by suspension polymerization and particulate foam moldings made therefrom.

The invention provides a rubber composition, a preparation method thereof and a corn husking roller. The rubber composition comprises 40-100 parts of polystyrene-butadiene rubber. 0-60 parts of nitrile rubber; 0 to 60 parts of polybutadiene rubber; 0 to 60 parts of polyisoprene rubber; 20 to 100 parts of a filler; 1-20 parts of a plasticizer; 0.5 to 11 parts of an anti-aging agent; 0.5 to 10 parts of an activating agent; the content of a styrene unit in the polystyrene-butadiene rubber is 10wt%-50wt%, and the molar content of 1, 2-vinyl in a butadiene unit in the polystyrene-butadiene rubber is 15%-70%. The problems that in the prior art, the rubber roller is short in service life, low in peeling efficiency and prone to damaging corn kernels due to the fact that abrasion resistance and wet friction force of a rubber material in a corn peeling rubber roller are difficult to consider at the same time are solved.

The invention relates to the technical field of adhesives, in particular to a polyurethane adhesive and a preparation method thereof. The adhesive is prepared from the following components in parts by weight: 60 to 90 parts of total polyol, 20 to 24 parts of isocyanate, 5.5 to 6 parts of a chain extender and 3 to 8 parts of a nano reinforcing material. According to the polyurethane adhesive, polyether polyol polypropylene glycol containing long-chain alkyl and hydroxyl-terminated hydrogenated polybutadiene are introduced into a polyurethane prepolymer to jointly serve as components of polyol, the components react with diisocyanate TDI to generate polyurethane, and then the polyurethane is compounded with nano SiO2 to prepare the polyurethane adhesive. The prepared polyurethane adhesive is high in tensile strength, large in toughness and good in tear resistance, has good adhesion to a PP base material, and solves the problems that a traditional polyurethane adhesive is low in adhesion strength to the PP base material, poor in heat resistance and depends on pretreatment.

Golf balls having core formulations including polybutadiene, butyl rubber, or a blend thereof, and low surface coverage dimple patterns are disclosed. The combination of low surface coverage with particular rubber formulations helps to reduce the flight of the ball while also providing improved aerodynamic consistency and maintaining the appearance of a high-performance trajectory.

The invention relates to a method for producing copolymers by solution polymerization based on at least 1, 3-butadiene and at least one hydrocarbon which is different from 1, 3-butadiene and contains at least one olefinic double bond as monomers, using one or more organolithium compounds as initiators, wherein the polymerization is carried out at a temperature of the reaction mixture of 0 DEG C to 50 DEG C and a pressure of 0.2 MPa to 0.6 MPa, and wherein 55% to 65% by weight, based on the total mass of monomers, of 1, 3-butadiene is added to the reaction mixture; a copolymer comprising units derived from 1, 3-butadiene and units derived from, as monomers, at least one hydrocarbon different from 1, 3-butadiene and comprising at least one olefinic double bond wherein the copolymer comprises monomer units derived from 1, 3-butadiene of formulae (A), (B) and (C) wherein all of the units derived from 1, 3-butadiene present in the copolymer are units derived from 1, 3-butadiene of formula (A), (B) and (C). The proportion of (A) is at least 80 mol% among monomeric units derived from 1, 3-butadiene present in the polybutadiene, and wherein the sum of the proportions of (B) and (C) is not more than 20 mol% among all monomeric units derived from 1, 3-butadiene present in the polybutadiene, and wherein the copolymer has a number average molecular weight Mn of from 2,000 g / mol to 5,400 g / mol and a glass transition temperature TG of from-15 DEG C to 5 DEG C; and to the use of the copolymers according to the invention as reactive cross-linking agents.

This invention provides a phosphorus-containing flame retardant, its preparation method and application, and a resin composition and its application, specifically relating to the field of polymer materials technology. The phosphorus-containing flame retardant provided by this invention achieves an integrated design of the flame-retardant unit and the elastic matrix at the molecular scale by directionally and controllably grafting phosphorus-containing groups M onto the active sites of the polybutadiene soft segments in a styrene-butadiene-styrene block copolymer via covalent bonds. This structure retains the inherent high flexibility, impact resistance, and processing rheological properties of the styrene-butadiene-styrene block copolymer while imparting intrinsic, durable, and uniformly distributed flame-retardant capabilities to the material. Simultaneously, because the phosphorus element is anchored to the polymer backbone / side chain, no small molecule polar impurities are introduced, significantly suppressing dielectric polarization loss and hygroscopicity increases. This provides a structural basis and performance guarantee for the subsequent construction of a high-end thermosetting resin system for copper-clad laminates with low Dk / Df, high Tg, and low CTE.