375 results about "Graft polymer" patented technology

The invention relates to the field of civil engineering waterproof materials, in particular to a nano bentonite-polymer composite material with high salt tolerance and a preparation method thereof, and the nano bentonite-polymer composite material is especially suitable for a sodium-based bentonite waterproof blanket in a saline soil area or a marine environment, and the preparation method comprises the following steps: (1) preparing nano bentonite lamellar colloidal dispersion liquid; (2) introducing and mixing an electrostatic screening agent and a polymerizable monomer; (3) carrying out in-situ free radical polymerization reaction; and (4) post-treatment and finished product preparation. By constructing a three-dimensional interpenetrating hierarchical structure composed of a covalent grafted polymer network, a physically anchored electrostatic screening agent and a stripped bentonite nanosheet layer, effective protection of a bentonite core anti-seepage unit is realized, so that the adaptability and long-term stability of the material under a complex water quality condition are remarkably improved.

The invention belongs to the technical field of intelligent high polymer materials, and particularly relates to a preparation method of a quick temperature-sensitive response poly (N-isopropylacrylamide) (PNIPAM)-polyacrylamide (PAM) composite hydrogel. The method comprises the following steps: firstly, copolymerizing carboxymethyl cellulose and N-isopropylacrylamide to obtain a graft polymer, and then reacting the graft polymer with acrylamide to obtain the CMC-PNIPAM-PAM composite hydrogel. The preparation method is low in raw material price and simple and feasible in technological process; the prepared material is rapid in response to temperature change, and the hydrogel is rapidly and reversibly changed from transparent to opaque in the heating process. Besides, by changing the temperature condition in the hydrogel preparation process, the size stability of the hydrogel in the temperature response process can be changed, two kinds of hydrogel with large performance difference are obtained, potential application risks caused by performance failure and structure instability of a gel device in different application environments are avoided, and the application performance of the gel is further improved.

The invention provides a flame-retardant high-modulus polypropylene composite material and a preparation method thereof, and relates to the technical field of composites.The flame-retardant high-modulus polypropylene composite material comprises a matrix phase, and the matrix phase comprises, by weight, 50-60 parts of polypropylene, 30-40 parts of a phosphorus-nitrogen flame retardant, 3-5 parts of a compatilizer and 0.5-1.5 parts of a dispersing agent; wherein the matrix phase comprises the following components in parts by weight: 0.5 to 1.5 parts of a scratch-resistant agent and 0.1 to 0.5 part of an antioxidant, the dispersing agent is an imidized isobutylene-maleic anhydride copolymer, the compatilizer is a polystyrene-oxazoline graft polymer, and the matrix phase further comprises the following components in parts by weight: 0.5 to 1.5 parts of a scratch-resistant agent and 0.1 to 0.5 part of an antioxidant. The flame-retardant high-modulus polypropylene composite material disclosed by the invention can comprehensively improve the flame-retardant property and the scratch resistance of the flame-retardant high-modulus polypropylene composite material.

The invention provides a modified chitosan flocculant for slime water treatment. The modified chitosan flocculant is prepared from the following raw materials: chitosan, dimethyl diallyl ammonium chloride, acrylamide, acetic acid and potassium persulfate. The invention also provides a preparation method of the modified chitosan flocculant for slime water treatment. The preparation method comprises the following steps: dissolving chitosan in a dilute acetic acid solution with the mass concentration of 60%, and stirring; adding acrylamide and dimethyl propyl chloride cyclic amine into the mixed solution, uniformly stirring, adding a potassium persulfate solution with the mass concentration of 4%, and introducing nitrogen for 20 minutes; then carrying out microwave reaction, and cooling to room temperature after the reaction is completed; adding absolute ethyl alcohol, centrifuging for 10 minutes, taking out, and continuously soaking in absolute ethyl alcohol for 12 hours, so as to obtain a final insoluble substance which is a graft polymer CS-g-ADM; and drying the polymer in a drying box at 105 DEG C until no weight loss occurs, and then grinding and storing. The flocculating agent disclosed by the invention has relatively good flocculability.

The invention relates to the technical field of secondary ion batteries, in particular to a dry binder and a preparation method thereof as well as an electrode plate and a preparation method thereof. The preparation method of the dry binder comprises the following steps: mixing and granulating a graft polymer and a metal salt to obtain the dry binder, the graft polymer comprises maleic anhydride grafted polypropylene. Maleic anhydride grafted polypropylene is used as a polymer matrix and is blended with the metal salt to prepare the solvent-free dry-method binder through a mixing process, and the solvent-free dry-method binder has excellent binding strength and lithium ion conductivity, and is high in use safety and low in raw material cost.

The invention provides an automotive bacteriostatic polypropylene-based wood-plastic composite material and a preparation method thereof, the automotive bacteriostatic wood-plastic composite material comprises the following raw materials by mass: 90 parts of a polypropylene matrix, 20-40 parts of modified plant fiber, 5-20 parts of an inorganic filler, 1-3 parts of a lubricant, and 0.1-2 parts of an antioxidant; the modified plant fiber comprises plant fiber grafted with a graft polymer and loaded with a pyridine antibacterial agent, and the graft polymer comprises a polyunsaturated carboxylic acid chain segment and a polypropylene chain segment. The modified plant fiber has good compatibility with a polypropylene matrix and can be used for preparing a wood-plastic composite material, so that the mechanical property, the interface stability and the long-term antibacterial property of the composite material are remarkably improved.

The invention discloses an insulating heat-conducting glass fiber reinforced polyphenylene sulfide composite material and a preparation method thereof. The composite material comprises the following raw material components: 30-50 parts by mass of polyphenylene sulfide, 10-20 parts by mass of glass fiber, 30-50 parts by mass of a heat-conducting filler, 5-10 parts by mass of a compatilizer and 0.3-1 part by mass of a coupling agent, and the heat-conducting filler is selected from one or more of graphite, silicon carbide, aluminum oxide, magnesium oxide, aluminum nitride and hexagonal boron nitride; the compatilizer is selected from a glycidyl methacrylate graft polymer. The polyphenylene sulfide composite material prepared by the preparation method disclosed by the invention has high insulativity, high thermal conductivity and good mechanical properties.

An aqueous pretreatment liquid for inkjet printing comprises resin particles having an average diameter of 1 [mu] m or less and comprising a first polymer and a second polymer, and a fixing agent, the first polymer is a polymer selected from the group consisting of polyureas, polyurethanes, polyamides, polyesters, polycarbonates, polysulfonamides, polyamides, polysulfonamides, melamine-based polymers, silica-based sol-gel polymers, and combinations thereof, and the second polymer is a polyoxyalkylene graft polymer obtained by polycondensation or addition polymerization, the polyoxyalkylene graft has a number average chain length of 20 or more oxyalkylene units. The pre-treatment liquid is useful for inkjet printing on packaging materials such as cardboard or corrugated cardboard.

The invention relates to the technical field of hot melt adhesive films, in particular to a hot melt adhesive film for bonding PET and metal, a preparation method of the hot melt adhesive film and a composite board. The hot melt adhesive film comprises a first adhesive layer, a core layer and a second adhesive layer; the first adhesive layer comprises a maleic anhydride terpolymer and a maleic anhydride grafted polymer, and the maleic anhydride grafted polymer comprises at least one of a maleic anhydride grafted ethylene-acrylate copolymer and maleic anhydride grafted SEBS; in the first adhesive layer, the total proportion of the maleic anhydride terpolymer and the maleic anhydride grafted polymer is greater than or equal to 80wt%; the second adhesive layer comprises maleic anhydride grafted polyethylene; the core layer comprises polyethylene; the mass ratio of the first adhesive layer to the core layer to the second adhesive layer is (2-4): (3-5): (2-4). The hot melt adhesive film disclosed by the invention can be used for bonding PET (Polyethylene Terephthalate) and a metal plate and has good water resistance, and the bonding performance still meets the requirements after the hot melt adhesive film is soaked in water for 48 hours.

The invention discloses a hydrogen energy fuel cell catalyst carrier based on a graphene graft polymer, which is characterized in that two-dimensional graphene is used as a substrate, the surface of the two-dimensional graphene is modified with an oxygen-containing functional group, and a functional polymer branch chain containing nitrogen, sulfur or phosphorus heteroatoms is covalently grafted to form a local three-dimensional network winding structure; the carrier is loaded with platinum, palladium, ruthenium and other metal or alloy nanoparticles, the particle size is 2-8 nm, the loading capacity is 10%-40%, and the particles are anchored to polymer functional sites or reduced in situ to a graphene defect area through coordination. A polymer branch chain has pH responsiveness and can adjust the local proton transmission efficiency; the grafting density is 3-15 grafting points per 100 carbon atoms, so that high dispersion and stable anchoring of metal particles are effectively realized; the specific surface area of the carrier is 400-800m < 2 > / g, the electrochemical active area is not less than 80m < 2 > / g, and the activity retention rate is greater than 80% after 5000 circles of accelerated durability tests. The activity, the stability and the proton conduction performance of the catalyst are remarkably improved, and the catalyst is suitable for high-performance fuel cells.

The invention provides a soap-free high-molecular agglomerant as well as a preparation method and application thereof. The soap-free high-molecular agglomerant contains an oligomer, the molecular structure of the oligomer contains a hydrophilic group and an oleophylic group; the weight-average molecular weight of the oligomer is 300 to 5000; the hydrophilic group comprises an amide group and / or carboxyl. According to the invention, the soap-free high-molecular agglomerant has a good agglomeration effect, large-particle-size polybutadiene latex can be obtained through agglomeration, and the high-molecular agglomerant does not contain an emulsifier, so that the introduction of excessive emulsifier in the preparation process of an ABS graft polymer is avoided; the ABS latex coagulation efficiency is improved, the impact resistance of the ABS resin is improved, and the yellow index of the ABS resin is reduced.

The present invention relates to an agrochemical composition comprising an agrochemical active ingredient and a cleaning composition comprising a cleaning additive, each further comprising at least one novel graft polymer comprising a polymer main chain (A) as a graft matrix having grafted polymer side chains (B) thereon. The polymer side chain (B) is obtainable by polymerization of at least one vinyl ester monomer (B1) and optionally a further monomer. The polymer backbone (A) comprises a polyalkylene oxide-derived moiety and a moiety derived from a lactone and / or a hydroxy acid, which moieties are mixed such that the polymer backbone contains ester functional groups within the polymer chain. The graft polymers of the compositions of the invention have been found to be suitable as dispersants for pesticidal agents in agrochemical compositions, and also suitable in cleaning compositions for improving cleaning properties. In addition, the graft polymer typically exhibits a suitably high degree of biodegradability and thus allows for a more environmentally friendly formulation. The graft polymer itself and its production are also claimed.

The invention belongs to the technical field of environment-friendly materials, and particularly relates to a bamboo-based composite material and a preparation method thereof.The bamboo-based composite material is composed of a biodegradable resin matrix, multi-scale bamboo fiber filler and the like, and the core of the bamboo-based composite material is that micron, submicron and nanometer three-level bamboo fibers are adopted to construct a multi-scale reinforced network, and a nanometer carbon reinforced phase material is adopted for assistance; through a reaction type interface modifier system containing a maleic anhydride grafted polymer and the like, strong chemical bonding of fibers and a resin matrix is achieved, interface compatibility is remarkably improved, the material selects PBS, PBAT, PLA and other matrixes, a plasticizer and a functional auxiliary are combined, excellent biodegradability is kept, meanwhile, high mechanical strength and good processing performance are achieved, and the material is suitable for industrial production. The composite material is an ideal green and environment-friendly material, the material still keeps excellent mechanical properties when the total amount of the bamboo fibers reaches 60 parts through the synergistic effect of the three-scale fibers, and the tensile strength can reach 50 MPa to 65 MPa and is improved by 180% or above under the same filling amount compared with the prior art.

The invention discloses a water injection well depressurization and augmented injection agent and a preparation method thereof, and relates to the technical field of augmented injection agent materials. The pressure-reducing and injection-increasing agent for the water injection well comprises the following raw materials in parts by weight: 50-60 parts of a betaine type ampholytic surfactant, 10-15 parts of a nonionic surfactant, 20-30 parts of a quaternary ammonium salt surfactant, 3-5 parts of a scale inhibitor, 2-3 parts of a stabilizer and 150 parts of deionized water. The preparation method comprises the following steps: preparing a first-generation polymer from urotropine and tromethamine, then reacting the first-generation polymer with epoxy chloropropane to prepare a graft polymer, and finally reacting the graft polymer with hexadecyl dimethyl tertiary amine to prepare the quaternary ammonium salt surfactant. The water injection well depressurization and augmented injection agent prepared by the invention has the characteristics of large unblocking radius, good depressurization and augmented injection effects and the like.

The invention relates to preparation of hydrolyzed keratin capable of maintaining hair and application of the hydrolyzed keratin in shampoo. The shampoo capable of maintaining the hair and the keratin is prepared by compounding a surfactant, a modified silicone oil graft polymer, the hydrolyzed keratin and polydimethylsiloxane. According to the modified silicone oil graft polymer, hydrophilic sodium acrylate and hydrophobic N-vinyl pyrrolidone and acrylic ester are introduced into vinyl silicone oil, and N-vinyl pyrrolidone and acrylic ester can be adsorbed on the inner side of the hair surface; sodium acrylate with hydrophilicity is located on the outer side of the surface of the hair due to electrostatic repulsion between the negatively-charged hair and generates hydration with water molecules on the surface of the hair to form a water shell protection layer, so that the sodium acrylate can be more uniformly distributed on the hair to form an effective protection film, and during washing, the water washing property is greatly enhanced by the hydrophilic part of the sodium acrylate; non-specific deposition and residues in a scalp area are remarkably reduced, and the washed hair can be moisturized and lubricated.

The invention relates to the field of 3D printing, and particularly discloses high-toughness and high-tack polyester for 3D printing and a preparation method thereof.The polyester is prepared from, by mass, 0.2-3% of antioxidant, 0.1-3% of dispersing agent and the balance matrix resin; the matrix resin comprises the following raw materials: binary acid, dihydric alcohol, a graft polymer, a catalyst and a protective agent. According to the polyester, a graft polymer containing active groups such as hydroxyl is introduced into matrix resin, so that the melt uniformity of a whole blending system is improved, the interface energy is reduced, a polyester molecular chain is easier to cross an interlayer interface to move and entangle, stronger physical connection is formed, layers are easier to bond and do not crack during 3D printing, and the 3D printing performance is improved. The adhesive has excellent interlayer adhesive force, meets the application requirement of high additional value in the field of industrial-grade 3D printing, and can be used in the fields of outdoor artware, construction industry, aerospace, medical instruments and the like.

The invention discloses a positive electrode material, a secondary battery and a power utilization device, and belongs to the technical field of batteries, the positive electrode material comprises an inner core and a coating layer arranged on the outer surface of the inner core, the inner core comprises a ternary positive electrode active material, and the coating layer comprises a graft polymer, a dielectric material and a lithium salt; the main chain of the graft polymer comprises a conductive polymer, and the conductive polymer comprises at least one of a styrene-butadiene-styrene block copolymer, nitrile rubber and a styrene-isoprene-styrene copolymer; the side chain of the graft polymer comprises at least one of poly-p-phenylene, polypyrrole, polythiophene, polydiacetylene and polyaniline. The positive electrode material disclosed by the invention can effectively improve the coulombic efficiency and the cycle performance of the secondary battery.

The invention discloses a graft polymer and a preparation method and application thereof.The graft polymer comprises a structural unit I from graphene oxide, a structural unit II from a monomer A and a structural unit III from a monomer B. The value of the carbon element and the oxygen element of the graphene oxide is not larger than 2.5; the monomer A is a monomer containing a sulfonic acid group; the monomer B is a propenyl monomer containing a rigid group; the viscosity average molecular weight of the graft polymer is 75,000 to 120,000. The graft polymer disclosed by the invention can be used as an ultrahigh-temperature salt-resistant shear strength improving agent for water-based drilling fluid, the temperature resistance can reach 240 DEG C or above, the salt resistance can reach saturation, and the influence on the plastic viscosity of the drilling fluid is less while the shearing force of the drilling fluid is increased.

The invention relates to the technical field of immunochromatography, in particular to time-resolved fluorescent microspheres, a preparation method and application of the time-resolved fluorescent microspheres in PSP / CRP / MxA quantitative detection immunochromatography test strip, and the preparation method of the time-resolved fluorescent microspheres comprises the following steps: 1) preparing surface aminated polystyrene microspheres; (2) carrying out glutaraldehyde crosslinking and 1, 10-phenanthroline-5-amino combination; 3) grafting a rare earth fluorescent dye on the surface; and 4) coating a polymer shell layer and modifying carboxyl. According to the invention, through a dual fixation strategy of surface grafting and polymer coating, the time-resolved fluorescent dye is confined to a functional region between the surface of the microsphere and a polymer shell layer, diffusion and leakage of dye molecules to the external environment are blocked, and the problem of dye shedding of traditional fluorescent microspheres is solved; the polymer shell layer can effectively isolate external ultraviolet light, oxygen and other corrosive factors, reduce photooxidative degradation and non-radiative transition loss of fluorescent molecules, and improve the light stability and fluorescent lifetime of the fluorescent molecules.

The invention belongs to an insulating material, relates to a polypropylene-based insulating material, and in particular relates to a high-temperature-resistant intrinsic self-recovery polypropylene insulating material as well as a preparation method and application thereof. The material is formed by blending a polypropylene grafting material and an ethylene-tetrafluoroethylene copolymer grafting material according to a mass ratio of 6.0: 4.0-9.5: 0.5, wherein the PP graft material comprises a PP graft polymer and an antioxidant, and the PP graft polymer is a graft polymer formed by grafting 4-propenyloxy-2-hydroxybenzophenone to polypropylene; the ETFE graft material comprises an ETFE graft polymer and an antioxidant, and the ETFE graft polymer is a graft polymer of glycerol grafted ethylene-tetrafluoroethylene copolymer. On the basis of keeping the original excellent performance of polypropylene, the polypropylene has higher heat resistance and self-recovery capability through a grafting modification technical means.

This application relates to biodegradable graft polymers for use as dye transfer inhibitors especially in laundry applications.The graft polymers of the invention comprise a polyalkylene oxide polymer as polymer backbone of the graft polymer and grafted side chains obtained from radically polymerizing at least one vinyl ester, at least one vinylimidazole-monomer or derivative thereof in amounts of more than 10 weight percent being based on the total weight of the graft polymer, and optionally at least one vinyl lactame in the presence of the polymer backbone.The inventive graft polymers exhibit dye transfer inhibition properties; as they also are bio-degradable, they are useful polymers for laundry cleaning applications to prevent dye transfer.The invention further relates to the production of such graft polymers.Furthermore, the present invention relates to the use of such a graft polymer within fabric and home care products, and the use of such graft polymers for inhibiting the dye transfer in laundry applications.This invention also relates to fabric and home care products as such containing such a graft polymer.

The invention provides a preparation method of a uniaxially stretched polypropylene film with high transverse tearing strength, and belongs to the technical field of high polymer material processing. The uniaxial stretching polypropylene film has a three-layer structure, and an upper surface layer and a lower surface layer are formed by mixing homo-polypropylene, anti-blocking master batch and smooth master batch; the middle layer is prepared from homo-polypropylene, block co-polypropylene, an olefin elastomer, linear low-density polyethylene, a thermoplastic elastomer, dynamic vulcanized rubber, a polylactic acid graft polymer, a polyethylene glycol graft polymer and modified silicon dioxide nanosheets. Compared with the existing production technology, the method has the advantages that the tear resistance of the film is improved by introducing the elastomer and compatibilizer components into the middle layer, and the transverse orientation degree of a polymer molecular chain is enhanced through secondary calendering and post-treatment of a shaping process, so that the tear strength of the film in the transverse direction is remarkably improved.

The invention belongs to the technical field of composite materials, and particularly relates to an environment-friendly composite material for pipelines and a preparation method thereof. The composite material comprises the following components in parts by weight: 75-90 parts of nylon 56, 10-20 parts of a maleic anhydride grafted polymer, 20-25 parts of flat glass fibers, 2-10 parts of fibrilia, 1-10 parts of inorganic nanoparticles, 1-4 parts of a coupling agent, 0-3 parts of a lubricant and 0-3 parts of an antioxidant. As the hemp fibers are good in flexibility, the flat glass fibers are of a special-shaped structure, mutual winding of composite fibers composed of the flat glass fibers and the hemp fibers is facilitated, and the dispersity of the flat glass fibers in the resin and the interface bonding force of the flat glass fibers and the nylon resin are improved. Compared with a single fiber reinforced composite material, the fiber reinforced composite material prepared from the flat glass fibers and the jute fibers has better balance in the aspect of mechanical properties, has better strength and improved toughness, and has wide application in the field of pipelines.

The invention discloses a graphene oxide grafting modification method and a product thereof, and relates to the technical field of material modification. According to the method disclosed by the invention, the principle that a grafting reaction can be carried out between hydroxyl and carboxyl contained in graphene oxide and an ester group contained in a polyester polymer is utilized, so that the graphene oxide can be subjected to an efficient grafting reaction with the polyester polymer under a relatively mild condition; therefore, the polyester polymer can be directly grafted onto the graphene oxide, and the compatibility between the graphene oxide and the polyester polymer is remarkably improved; the method is simple in reaction step, controllable in process, mild in condition and high in grafting rate, no by-product is generated in the reaction process, impurity removal treatment does not need to be carried out on the reaction product, and regulation and control on the performance of the polyester polymer can be realized by directly regulating and controlling the variety and the structure of the grafted polymer according to the variety of a polyester polymer material needing to be enhanced; the method is suitable for large-scale application in graphene oxide reinforced modified polyester polymers.

The invention relates to the field of basalt fiber composite polyester tires and discloses a high-strength basalt fiber composite polyester tire and a preparation method thereof.The high-strength basalt fiber composite polyester tire is prepared from, by mass, 40-60 parts of basalt fiber, 55-70 parts of polyester matrix, 13-20 parts of epoxidized rubber, 8-10 parts of carboxyl-terminated polybutadiene, 7-12 parts of bifunctional compound and 8-15 parts of epoxy silane coupling agent. The material is prepared from the following components in parts by weight: 10-15 parts of maleic anhydride grafted polyacrylic acid, 0.5-3 parts of nano silicon dioxide, 0.5-1 part of an antioxidant, 0.4-1 part of an ultraviolet light absorber and 1.7-5 parts of a flame retardant. An active epoxy group is provided through an epoxy silane coupling agent, then carboxyl in a maleic anhydride grafted polymer and the epoxy group are subjected to a ring-opening reaction, stable chemical bonds are formed between fibers and a matrix, the interface bonding strength is remarkably improved, stability can be kept for a long time, and layering is prevented.

The invention belongs to the technical field of lithium battery negative electrode interface modification, and discloses a multifunctional two-dimensional hybrid polymer artificial SEI membrane and a preparation method and application thereof. Comprising a compound as shown in a formula I, a polymer brush is grafted on the surface of brominated graphene oxide through atom transfer radical polymerization (ATRP), monomers of the polymer brush are carboxyl-containing monomers and fluorine-containing monomers, and the artificial SEI membrane is constructed through spin coating and membrane forming. The multifunctional artificial SEI film provided by the invention has the structural and functional characteristics of two-dimensional graphene oxide and in-situ reaction type macromolecules, the mechanical property of the film can be remarkably improved by an accumulated two-dimensional skeleton, the Young modulus can reach 3.7 GPa, the growth of lithium dendrites is inhibited, and the performance of the film is improved. Functional groups (carboxyl and fluoro) in the hybrid polymer brush and lithium metal are subjected to in-situ chemical reaction, so that the electrode interface stability and the lithium deposition uniformity are improved, and the hybrid polymer brush has wide application prospects in the field of lithium batteries.

The present invention relates to fabric and home care compositions comprising a fabric and home care ingredient, a graft polymer and a propoxylated polyol.

The invention relates to the technical field of photosensitive dielectric materials, in particular to a photosensitive polyimide composition, a pattern manufacturing method, a cured product and an electronic component. The photosensitive polyimide composition includes a component (a) which is soluble in an alkaline aqueous solution and is selected from compounds represented by the following structural formula: # imgabs0 # wherein Ar1 is selected from a tetravalent organic group and Ar2 is selected from a divalent organic group; m + n = 5-200, n / (m + n) = 0.05-1, and k = 2-10; (b) a photosensitizer; (c) a thermal crosslinking agent; the cross-linking agent comprises a component (c1) which contains an epoxy group and a component (c2) which contains CH2OR '; and (d) a silane coupling agent. The photosensitive polyimide composition has extremely excellent sensitivity and resolution, can copy fine patterns, has low warping stress after being cured at 200 DEG C, and has high chemical stability and cohesiveness.

The invention discloses anti-aging modified asphalt and a preparation method thereof, and relates to the technical field of building materials, the anti-aging modified asphalt comprises the following specific components: base petroleum asphalt, a thermoplastic elastomer, an anti-stripping agent, an ultraviolet absorbent, an antioxidant and a softening agent; the additive comprises a nano montmorillonite modifier, a phosphate type flame-retardant anti-aging agent, a bio-based polyphenol antioxidant, a siloxane graft polymer and a carbon quantum dot light stabilizer; the preparation is performed based on the components. On the basis of a traditional modification system, multiple additives are cooperatively introduced, and a composite system with multiple shielding, free radical scavenging, weather-proof protection and macromolecule enhancement functions is constructed. According to the modification system, the high-temperature stability, the low-temperature flexibility and the water resistance of the asphalt material are remarkably improved on the macroscopic level, and meanwhile the aging process of the material is greatly delayed through the nanoscale barrier effect, the long-acting anti-oxidation mechanism and the light stabilization mechanism on the microscopic level.

To provide a toner that achieves both low-temperature fixation and storage stability in high-temperature environments. [Solution] A toner containing a graft polymer resin including a polyolefin resin and a styrene-based resin, a polyester resin, and a release agent, wherein when the toner heated to 50°C is measured by FTIR-ATR (total internal reflection absorption infrared spectroscopy), the peak intensity derived from the release agent is set to Wk-50 and the peak intensity derived from the polyester resin is set to RK-50; when the toner heated to 70°C is measured by FTIR-ATR, the peak intensity derived from the release agent is set to Wk-70 and the peak intensity derived from the polyester resin is set to RK-70; and when the toner heated to 90°C is measured by FTIR-ATR, the peak intensity derived from the release agent is set to Wk-90 and the peak intensity derived from the polyester resin is set to RK-90, the toner satisfies the following formulas (1) and (2). (Wk-70 / RK-70) / (Wk-50 / RK-50)≦1.1···(1) 1.5≦(Wk-90 / RK-90) / (Wk-50 / RK-50) (2)