169results about "Bituminous material adhesives" patented technology

The invention relates to the technical field of waterproof coiled materials, and provides a tensile double-lap-joint polymeric membrane base waterproof coiled material which sequentially comprises a first isolating membrane, a first permeable reaction adhesive layer, a first polymeric membrane base layer, a second permeable reaction adhesive layer, a second polymeric membrane base layer, a third permeable reaction adhesive layer and a surface layer from bottom to top, the surface layer is formed by connecting a second isolating membrane and an anti-sticking layer; a first lapping opening and a second lapping opening are formed in the two sides of the second permeable reaction adhesive layer respectively, the second isolating membrane and the first lapping opening are located on the two sides of the anti-sticking layer respectively, a third isolating membrane and a fourth isolating membrane are arranged on the inner wall of the first lapping opening, and a fifth isolating membrane and a sixth isolating membrane are arranged on the inner wall of the second lapping opening. Through the technical scheme, the problems of low peeling strength and poor adhesiveness of the overlapping edge of the waterproof roll in the related technology are further improved and solved.

The invention relates to the technical field of rubber asphalt, in particular to a pavement rubber asphalt crack pouring adhesive and a preparation method thereof. The pavement rubber asphalt crack pouring adhesive is prepared from the following components in parts by mass: asphalt, rubber powder, a compatilizer, modified silicon dioxide, a silane coupling agent and an auxiliary agent, according to the pavement rubber asphalt crack pouring adhesive, asphalt, rubber powder and modified silicon dioxide are compounded; the preparation method comprises the following steps: treating nano silicon dioxide by adopting a KH570 silane coupling agent, introducing unsaturated double bonds into the nano silicon dioxide, then carrying out free radical polymerization on the nano silicon dioxide, alpha-octadecene and sulfobetaine methacrylate under the catalysis of BPO, and respectively introducing long-chain alkyl, sulfo and betaine groups into the modified nano silicon dioxide, so as to obtain the modified nano silicon dioxide. The interfacial compatibility among the components is improved, so that the high-temperature stability and the mechanical property of the crack pouring adhesive are improved.

The invention relates to the technical field of waterproof coiled materials, and particularly discloses a self-adhesive modified rubber asphalt waterproof coiled material and a preparation method thereof. The self-adhesive modified rubber asphalt waterproof coiled material comprises a surface isolating membrane, an asphalt layer, a reinforcing layer and a bottom surface isolating membrane from bottom to top, and the asphalt layer comprises the following raw materials: regenerated rubber modified asphalt, SEBS, terpene resin, polyisobutene amine, an antioxidant and an ultraviolet light absorber; the surface isolating membrane and the bottom isolating membrane are selected from sand surface isolating membranes, and the thickness of the surface isolating membrane and the bottom isolating membrane is 0.8-1.2 mm; and the reinforcing layer is a long-fiber polyester base reinforcing layer. The tensile strength of the self-adhesive modified rubber asphalt waterproof coiled material is 4.5-5.6 N / mm < 2 >, the self-adhesive modified rubber asphalt waterproof coiled material does not flow or drip at 70 DEG C and does not crack at-30 DEG C, the self-adhesive modified rubber asphalt waterproof coiled material has high use performance, the joint peel strength of the waterproof coiled material is 3.2-4.2 N / mm, the holding power is greater than 15 min, and the self-adhesive property of the waterproof coiled material is improved.

The present application belongs to the technical field of electrode paste. The present application provides a bio-based binder. The present application also provides a preparation method of the bio-based binder. The present application further provides an electrode paste based on the bio-based binder, which comprises 80-90 parts by mass of aggregate, 10-20 parts by mass of the bio-based binder, and 0.7-1.2 parts by mass of attapulgite. The bio-based binder comprises alcohol with a purity of 55-65%, vegetable pitch, syrup, and starch, and the mass ratio of the alcohol, the vegetable pitch, the syrup, and the starch is (20-25):(150-170):(70-85):(90-110). The present application also provides a preparation method of the electrode paste based on the bio-based binder. The prepared binder is environmentally friendly and has good uniformity. Meanwhile, the cold ramming paste prepared according to the preparation method of the cold ramming paste has high mechanical strength and low porosity.

Methods and systems for producing an agglomerated recycled plastic for use in asphalt products is provided. The method of various embodiments can comprise loading a quantity of recycled plastic into a chamber with a cutting apparatus configured to produce agglomerated plastic particles, running the cutting apparatus for a first interval to produce an intermediate agglomerate, maintaining a chamber air temperature during the first interval, adding a first amount of water to the chamber after the first interval, running the cutting apparatus for a second interval with the intermediate agglomerate to produce a plurality of agglomerated plastic particles adapted for use in asphalt production, and discharging the plurality of agglomerated plastic particles from the chamber after the second interval.

The invention relates to the technical field of waterproof coiled materials, in particular to an anti-ultraviolet SBS waterproof coiled material and a preparation method thereof.The waterproof coiled material comprises a base layer, an anti-ultraviolet SBS asphalt layer and a thin film layer, the anti-ultraviolet SBS asphalt layer comprises asphalt, an SBS elastomer, asphalt softening oil, an anti-aging waterproof multifunctional agent, composite filler, an initiator and the like, and the thin film layer is prepared from the following components; the anti-aging waterproof multifunctional agent prepared by the invention takes macromolecular polysiloxane as a main chain and simultaneously contains a double hindered amine structure and a benzoxazole structure, and the benzoxazole structure not only can cooperate with a polysiloxane structure to improve the thermal aging resistance of a material, but also can endow a coiled material with a rigid structure; the double hindered amine structure has better ultraviolet aging resistance and does not influence the improvement of silicon-oxygen bonds on the waterproof performance of the coiled material, and the functional agent can make the asphalt coiled material become a coiled material resistant to thermal aging, ultraviolet aging and chemical substance erosion.

The application discloses an epoxy asphalt binder and a preparation method thereof, and belongs to the technical field of asphalt preparation, in particular relates to the binder which is composed of modified asphalt, epoxy resin material, compatilizer and anti-aging agent, and the mass ratio of the modified asphalt, the epoxy resin material, the compatilizer and the anti-aging agent is 100:15-60:5-10:0.1-0.5.The epoxy asphalt binder prepared by the application has excellent bonding performance and flexibility, in particular, the bonding performance at high temperature is significantly better than that of modified emulsified asphalt or polymer modified asphalt, and the flexibility is better than that of epoxy resin binder.

The invention belongs to the technical field of steel bridge pavement, and particularly discloses a high-viscosity asphalt double-layer SMA pavement layer structure and a construction technology thereof. The high-viscosity asphalt double-layer SMA pavement layer structure comprises an upper pavement layer, a waterproof bonding layer and a lower pavement layer, the upper pavement layer is laid on the lower pavement layer, the upper pavement layer comprises fine aggregate, limestone powder, modified asphalt, basalt fibers and a Wenn glue mixture, the thickness of the upper pavement layer is 35-40 mm, and the thickness of the waterproof bonding layer is 10-20 mm. The waterproof bonding layer comprises modified asphalt, epoxy resin, a silane coupling agent, a curing agent, a curing accelerator, butadiene styrene rubber, a silane coupling agent and talcum powder, the thickness of the waterproof bonding layer is 0.5-1 mm, and the lower pavement layer comprises coarse aggregate, modified asphalt, acrylonitrile-butadiene-styrene copolymer, porous ceramic particles, rubber particles, calcium stearate and waterborne polyurethane. And the thickness of the lower paving layer is 10-15mm. Various raw materials are mixed, so that the strength and durability of the pavement layer structure are improved, and the service life of the pavement is prolonged.

Aiming at the problems that the molecular weight of the existing SBS modified asphalt is broken and the rubber powder of the rubber asphalt is unstable to degrade, the composite modified asphalt binder with a dense molecular structure is prepared by a three-step method of constructing a'molecular grading template ', optimizing a rubber powder analysis process and filling vacancy molecules. The process comprises the following steps: determining an asphalt molecular weight distribution template by taking the optimal rheological property as a target, and regulating and controlling the rubber powder analysis temperature (180-220 DEG C), the time (3-6 hours) and the stirring speed (500-1500 r / min) to ensure that the molecular weight distribution overlapping degree of a rubber powder analysis system and the template is greater than or equal to 85%; and finally, filling corresponding prototype compounds (such as styrene-butadiene block copolymers, antioxidants and the like) according to molecular vacancy types of an analysis system and the template to form a dense molecular structure. The prepared binder is continuous and stable in molecular weight distribution, the high-temperature anti-rutting factor is improved by 40% or above, the anti-aging performance is improved by 30%, the binder is suitable for a highway surface layer with the service life of 30 years, and the service life of a pavement can be remarkably prolonged.

The application provides a petroleum-based binder for prebaked anodes and a preparation method thereof, and relates to the technical field of prebaked anode production. The preparation of the petroleum-based binder comprises the following steps: mixing residual oil and an activating agent, then performing a first polymerization reaction by heating, cooling after the reaction, and obtaining a modified binder; mixing the obtained modified binder with a vacuum distillation fraction of catalytic slurry oil, then melting by heating, sealing, heating, performing a second polymerization reaction, cooling after the reaction, and obtaining the petroleum-based binder for prebaked anodes. The two-stage thermal polymerization method is adopted, the first stage is a medium-low temperature thermal polymerization method, the small molecules in the residual oil are modified by the medium-low temperature thermal polymerization, and the carbon residue rate of the pitch is improved; the second stage of thermal polymerization mainly makes the unreacted groups of the modified binder in the first stage continue to perform a thermal polymerization reaction with the treated catalytic slurry oil at high temperature, and the modified binder coal pitch for prebaked anodes with high carbon residue and low viscosity is obtained.

The invention relates to a modified asphalt sizing material, which is prepared from the following components in percentage by weight: 35.5 to 38.5 percent of 70 # asphalt, 6.5 to 9.5 percent of base oil, 4.5 to 5.5 percent of aromatic oil, 3.5 to 4.5 percent of SBS (Styrene Butadiene Styrene), 5.5 to 6.5 percent of SIS (Styrene Isoprene Styrene), 5.5 to 6.5 percent of SBR (Styrene Butadiene Rubber) powder, 1.9 to 2.1 percent of blocked isocyanate, 0.06 to 0.08 percent of activating agent, 4.5 to 5.5 percent of porous silicon dioxide and 24 to 30 percent of powder. The modified asphalt sizing material can trigger the activating agent to catalyze the deblocking of the blocked isocyanate at the processing temperature of 180 + / -2 DEG C to release-NCO groups, the-NCO groups can react with trace moisture in an asphalt system to generate CO2 gas, in the rubber layer forming process, CO2 is wrapped by the asphalt in a viscoelastic state to form a uniform closed-cell foam structure, and in the forming process of a rubber layer, the modified asphalt sizing material can be used for forming an asphalt layer. According to the structure, liquid water permeation is blocked by utilizing the characteristic that the surface tension of liquid water is greater than that of a bubble wall, and an initial channel is constructed for vapor diffusion; furthermore, closed-cell foam is bridged by utilizing nano-pores of porous silicon dioxide, a'nano-pore adsorption-micropore diffusion 'three-dimensional vapor-permeable network is constructed, diffusion and discharge of water vapor are accelerated, liquid water is further blocked, and dynamic balance of waterproofness and breathability is realized.

The invention discloses a water-based polymer cold-mixing crack pouring adhesive for road maintenance, which comprises a component A and a component B. The component A comprises unsaturated water-based epoxy resin, unsaturated rubber modified emulsified asphalt, a filler, an oxidant and an antioxidant, and the component B comprises a reducing agent, a water-based epoxy hardener, an accelerant and unsaturated rubber modified emulsified asphalt. The unsaturated water-borne epoxy resin and the unsaturated rubber modified emulsified asphalt can be cured at room temperature under the action of the oxidizing agent and the reducing agent, and the unsaturated water-borne epoxy resin and the water-borne epoxy curing agent can also be cured at room temperature, so that after the component A and the component B are mixed, a system can be subjected to dual-curing reaction, and the curing effect is good. And forming an interpenetrating network structure. Compared with the traditional crack pouring adhesive, the crack pouring adhesive does not need heating equipment, is low in consumption and can reduce the material cost; due to the excellent adhesion of an epoxy system, the crack pouring adhesive is firmly adhered to the wall surface of a crack, is not easy to debond and crack, and is durable.

The present invention discloses a type of self-repairing, self-adhesive, tireless polymer-modified asphalt waterproofing membrane, which uses asphalt, a repair agent containing an acylhydrazone bond and carbon-carbon double bonds at both ends, an initiator, an SBS modifier, an SBR modifier, a compatibilizer, rubber powder, and a filler as main raw materials. The present invention first uses olefinic monomers and dihydrazide monomers to prepare a repair agent containing an acylhydrazone bond and carbon-carbon double bonds at both ends. This repair agent undergoes an addition reaction with the carbon-carbon double bonds in SBS and SBR, introducing a dynamic acylhydrazone bond between the SBS and SBR molecular chains to impart excellent self-repairing capabilities to the self-adhesive, tireless polymer-modified asphalt waterproofing membrane. The membrane can also effectively improve the high and low temperature performance and aging resistance of SBS and SBR elastomer-modified asphalt waterproofing membranes. Furthermore, a bentonite fluid is prepared and used to prepare a weather-resistant self-adhesive polymer-modified asphalt, which can further improve the waterproofing membrane's aging resistance, low-temperature flexibility, and seam peel strength.

The invention relates to a composite waterproof high-adaptability asphalt-based waterproof coiled material and a preparation method, the coiled material is composed of a self-adhesive glue material and a structural film / base, the self-adhesive glue material is a modified asphalt glue material, and the self-adhesive glue material is composed of 100 parts of national standard asphalt, 10-40 parts of composite modified rubber, 5-15 parts of naphthenic oil and 5-10 parts of tackifying resin. 30 to 45 parts of talcum powder, 0.5 to 1.5 parts of an antioxidant and 0.5 to 1.5 parts of a heat stabilizer. The composite modified rubber is prepared from the following components in parts by weight: 20-25 parts of styrene butadiene rubber, 8-20 parts of SBS rubber, 20-40 parts of naphthenic oil, 5-10 parts of a liquid tackifier, 0.5-1.2 parts of a separant and 5-10 parts of filler. The asphalt-based waterproof coiled material is formed by compounding the self-adhesive material, a macromolecular structure film and a polyester matrix, the waterproof coiled material can achieve a good composite bonding effect with a macromolecular coiled material, and it can be guaranteed that the two materials are well combined when used in a composite mode.

The invention belongs to the field of high polymer materials and road engineering materials, and provides a single-component road adhesive based on a polyurea asphalt technology and a preparation method of the single-component road adhesive. The adhesive is prepared by compounding an isocyanate-terminated prepolymer and macromolecular asphaltic acid, wherein the prepolymer is prepared by reacting diisocyanate with polycarbonate diol, and carrying out amine chain extension and silane end group modification; the macromolecular asphaltic acid is prepared by reacting maleic anhydride of asphalt with polyoxypropylene diamine and carrying out silane anchoring. The control parameters of the system are as follows: the equivalence ratio is 1.5-8.0, the isocyanate content is 4.0-10.0 wt%, and the viscosity is 10-80 Pa.s. The high-solid-content low-viscosity processing is realized, the bonding strength to a wet base material is 0.80-1.50 MPa, the adhesive has cracking resistance, flame retardance, heat resistance and yellowing resistance, and the problem that constructability, interface anchoring and durability of a traditional adhesive for roads are difficult to consider is solved. The method is suitable for the fields of road paving, crack sealing, water resistance, corrosion resistance and the like.

The present application relates to waterproofing membrane technical field, propose a kind of three base double-channel prefabricated bite lap waterproofing membrane with touch fastener, from bottom to top, in turn include anti-adhesive layer, first permeation reaction adhesive layer, first polymer film base layer, second permeation reaction adhesive layer, second polymer film base layer, third permeation reaction adhesive layer, third polymer film base layer, fourth permeation reaction adhesive layer, rough surface silk layer and hook face layer;The adhesive of first permeation reaction adhesive layer, second permeation reaction adhesive layer, third permeation reaction adhesive layer and fourth permeation reaction adhesive layer respectively independently includes following weight parts component raw materials: asphalt, softener, SBS, SIS, tackifier, rubber powder, filler, filler is composed of heavy calcium carbonate, magnesium stearate modified active calcium carbonate and hollow glass microsphere.By the above technical solution, the problem of poor fixing, low peel strength and heavy quality of waterproofing membrane in related art is solved.

The application belongs to the technical field of polymer materials, and discloses a high-elasticity and anti-cracking crack filling glue and a preparation method thereof. The high-elasticity and anti-cracking crack filling glue comprises the following raw materials: asphalt, thermoplastic elastomer, metallocene polyolefin elastomer, plasticizer, lead peroxide, silane coupling agent and stabilizer. The preparation method is as follows: the asphalt is heated to 180-200 DEG C, and then the thermoplastic elastomer, metallocene polyolefin elastomer, plasticizer, stabilizer, lead peroxide and silane coupling agent are added and uniformly mixed and dispersed by stirring; after the reaction is continuously carried out under the condition of heat preservation and stirring, the crack filling glue is obtained by cooling to room temperature. The crack filling glue of the application contains metallocene polyolefin elastomer, plasticizer and lead peroxide, and the synergistic effect among the three is utilized, so that the obtained crack filling glue has excellent aging resistance, low-temperature performance, adhesion and permeability.

The application discloses HUPC water-based epoxy floor paint and a preparation method thereof, and belongs to the technical field of floor paint preparation. The HUPC water-based epoxy floor paint is obtained by sequentially forming UHPC super-performance concrete components, adhesive layer material components and water-based epoxy floor paint components from bottom to top in a mass ratio of 150-250:0.3-1:3-10, and has a microporous structure, allows water vapor to permeate but liquid medium to not pass through, and releases the pressure of water vapor in the UHPC super-performance concrete layer, thereby avoiding problems such as film bubbling and peeling, has the advantages of high strength, good adhesion and permeation resistance, solves the defects of current floor paint, such as easy sanding and pulverization, insufficient strength, delamination caused by false clear light and poor flatness, and has a good application prospect.

The present invention relates to the technical field of waterproof roll materials, and provides a root-puncture-resistant double-lap-joint double-polymeric-membrane-based waterproof roll material and a preparation method therefor. The waterproof roll material comprises an anti-sticking layer, a first adhesive layer, a first polymeric membrane base layer, a second adhesive layer, a second polymeric membrane base layer, a third adhesive layer and an isolating membrane, which are sequentially arranged from top to bottom, wherein the first polymeric membrane base layer and the second polymeric membrane base layer each independently comprise the following components: polyethylene terephthalate, polypropylene, magnesium silicate and an anti-aging agent; and the first adhesive layer, the second adhesive layer and the third adhesive layer each independently comprise the following components: asphalt, an ethylene-vinyl acetate copolymer, a styrene-butadiene-styrene copolymer, a tackifier and a root inhibitor, the tackifier comprising sodium polyacrylate and manganese dioxide. By means of the technical solution, the problem of relatively poor resistance to root puncture of a waterproof roll material in the prior art is solved.

Disclosed herein are compositions comprising asphalt emulsion compositions with styrene-butadiene latexes. The present disclosure also relates to methods of making the disclosed compositions. The compositions disclosed herein can be used in a variety of applications including, but not limited to, asphalt compositions, paints, coatings, carpet compositions, paper binding and coating compositions, tack coats, foams, or adhesives.

The present application relates to the technical field of road engineering materials, and particularly relates to a rubber asphalt sealant for repairing cracks in asphalt concrete pavement and a preparation method thereof, which comprises, by weight fraction, 100 parts of road petroleum asphalt, 25-45 parts of a composite rubber system, 8-18 parts of double-modified nano-silicon dioxide, 25-42 parts of softening oil, 2-5 parts of an interface compatibilizer, 4-7 parts of a vulcanization system, 1.5-4 parts of a rubber activator, 0.8-2.5 parts of an antioxidant, and 4-9 parts of a tackifier. The present application solves the core technical defects of existing pavement sealants by optimizing the performance of the sealant from the two dimensions of material composition and preparation process through the synergistic effect of the composite rubber system, double-modified nano-filler and multiple compounded additives, and in combination with a gradient preparation process.

The invention provides a polymer modified asphalt binder as well as a preparation method and application thereof, and belongs to the technical field of road engineering materials. The polymer modified asphalt adhesive comprises the following raw material components in parts by mass: 40-60 parts of matrix asphalt, 4-9 parts of a polymer modifier, 10-20 parts of a polyurethane prepolymer, 0.5-2 parts of a reactive chain extender, 3-6 parts of a compatilizer and 0.1-1 part of a stabilizer. The preparation method comprises the following steps: heating matrix asphalt, adding a polymer modifier, and carrying out shearing dispersion to obtain a colloidal dispersion; cooling the colloidal dispersion, mixing the cooled colloidal dispersion with a polyurethane prepolymer, a chain extender and a compatilizer, and carrying out a grafting reaction to obtain a mixture; and mixing the mixture with a stabilizer to obtain the polymer modified asphalt binder. The polymer modified asphalt adhesive prepared by the invention has high cohesiveness of polyurethane and good weather resistance of emulsified asphalt, can resist erosion of water, ultraviolet rays and chemical corrosion, and remarkably improves the crack resistance, wear resistance and durability of a pavement seal.

The invention relates to the technical field of waterproof coiled materials, and discloses modified rubber powder and a preparation method thereof, a composition for a coating material, the coating material and a preparation method thereof, and a modified asphalt waterproof coiled material. The method for preparing the modified rubber powder comprises the following steps: (1) in the presence of water, soaking sunflower seed meal to obtain an intermediate I; (2) stirring the intermediate I and cellulase to obtain an intermediate II; and (3) in the presence of ethanol, contacting and mixing raw material rubber powder with the intermediate II to obtain the modified rubber powder, relative to 100 parts by weight of the sunflower seed meal, the use amount of the cellulase is 0.1-0.5 part by weight, and the use amount of the raw material rubber powder is 100-400 parts by weight. The modified asphalt waterproof coiled material provided by the invention has excellent antibacterial performance and also has good adhesion and aging resistance.

The present invention provides a high-temperature pavement joint sealant and a preparation method thereof, which relates to the technical field of pavement maintenance. The components include a premix, a polymer modifier, a tackifier, a stabilizer, and a filler; the filler contains a finely separated recycled material. The high-temperature pavement joint sealant of the present invention has the characteristics of high temperature and high resilience by adding rubber-modified asphalt, improves the low-temperature performance by adding a polymer modifier, ensures the viscosity and durability by adding a tackifier, and ensures the stability and anti-aging property by adding a stabilizer. Each material plays a synergistic role to balance the comprehensive performance of the joint sealant, making the joint sealant have good high-temperature stability performance, while balancing the low-temperature performance and elastic recovery performance, being more environmentally adaptable, and having a lower high-temperature viscosity. The performance of the joint sealant is balanced, the construction is convenient, and the cost is low. The present invention realizes the simple and efficient recycling of the finely separated recycled material by adding the finely separated recycled material, and solves the problem of low recycling rate of the finely separated recycled material.

The invention relates to the field of waterproof coatings, and discloses a composition for a waterproof coating, the waterproof coating and a preparation method of the waterproof coating. The composition contains a main agent and an auxiliary agent, wherein the main agent comprises SBS modified emulsified asphalt, an acrylic emulsion and a first component; on the basis of the total weight of the composition, the content of the SBS emulsified asphalt is 30 wt%-40 wt%, the content of the acrylic emulsion is 20 wt%-25 wt%, and the content of the first component is 35 wt%-45 wt%; the first component contains semi-hydrated gypsum and a component A in a mass ratio of 1: (0.5-2); the component A is heavy calcium carbonate and / or barium sulfate. The waterproof coating prepared from the composition for the waterproof coating provided by the invention is short in drying time, and the construction efficiency can be remarkably improved.

The invention relates to the technical field of pavement construction materials, in particular to a preparation method of high-viscosity non-emulsified reactive tack coat oil, which comprises the following steps: S1, placing matrix asphalt in a reactor, dehydrating under reduced pressure in a nitrogen atmosphere to obtain pretreated matrix asphalt, mixing epoxy resin and a polymer carrier, heating, and dispersing at a high speed to obtain slurry; and S2, adding the slurry into the pretreated matrix asphalt, heating and stirring, adding a silane coupling agent and bentonite, stirring in a nitrogen atmosphere, adding a curing agent, shearing, cooling the system, curing at a constant temperature, and filtering to obtain the high-viscosity non-emulsified reactive tack coat oil. The polymer carrier plays an important role in stabilizing the system and enhancing the bonding performance in the tack coat oil system, and the tack coat oil with good heat storage stability and high bonding strength can be prepared by reasonably adjusting the preparation conditions and the dosage of the polymer carrier.

The present invention discloses a hot melt adhesive for waterproofing membranes and a preparation method thereof. The hot melt adhesive contains butyl reclaimed rubber, butyl reclaimed rubber, a polyamide thermoplastic elastomer, and a SEBS thermoplastic elastomer. The present invention uses discarded butyl reclaimed rubber as one of the raw materials for the hot melt adhesive, significantly reducing production costs. Furthermore, to prevent the effects of impurities in the butyl reclaimed rubber on the performance of the hot melt adhesive, which could reduce its effectiveness, and to enhance the hot melt adhesive's performance for waterproofing membranes, bromobutyl rubber, a polyamide thermoplastic elastomer, and a SEBS thermoplastic elastomer are simultaneously introduced to improve the hot melt adhesive's physical strength (primarily enhancing toughness, tensile strength, wear resistance, and noise reduction), vibration resistance, permeability, heat and weather aging resistance (down to -40°C), and viscosity. A separate mixing process is used to ensure that the materials, when compatible, do not deteriorate due to differences in melting temperatures, thereby ensuring the effectiveness of the hot melt adhesive.

The application belongs to the technical field of highway pavement repairing materials, and particularly relates to a flame-retardant road sealant and further discloses a preparation method thereof. The flame-retardant road sealant has good waterproof performance, water resistance, anti-aging performance and flame-retardant performance, and has a wide application range, and the preparation method is simple and easy to implement, and is suitable for industrial promotion.

A silane-containing compound having a cyclic structure within the molecular structure; a modified hydrogenated petroleum resin in which the bromine value, the silicon element content, the weight-average molecular weight, and the molecular weight distribution are specific values; a modified hydrogenated petroleum resin obtained by subjecting the modified hydrogenated petroleum resin to a condensation reaction; an adhesive composition that includes the modified hydrogenated petroleum resin; an asphalt composition that contains the silane-containing compound or the modified hydrogenated petroleum resin.

The invention provides a polyurethane modified asphalt sealant composition as well as a preparation method and application thereof, and belongs to the technical field of building materials. The composition of the polyurethane modified asphalt sealant is prepared from the following components in percentage by mass: 35 to 45 percent of petroleum asphalt, 1 to 4 percent of biomass asphalt, 5 to 8 percent of thermoplastic elastomer, 0.1 to 3 percent of isocyanate-terminated polyurethane prepolymer, 5 to 10 percent of softening agent, 15 to 25 percent of filler, 0.1 to 2 percent of fiber and 15 to 22 percent of S150 solvent oil. According to the sealant disclosed by the invention, a three-dimensional network structure is formed through chemical reaction of active components in the biomass asphalt and the petroleum asphalt and the isocyanate-terminated polyurethane prepolymer, so that the durability and the high and low temperature resistance of the sealant are improved; the thermoplastic elastomer is added, so that the elasticity and deformation recovery capability of the sealant are further enhanced; and meanwhile, the environment-friendly S150 solvent oil is adopted, so that the content of volatile organic compounds is reduced while the processing property is ensured, and the coating is safer and more environment-friendly.