517 results about "Waste rubber" patented technology

The invention discloses sound-insulation and heat-insulation building mortar and a preparation method thereof, and relates to the technical field of building materials, the sound-insulation and heat-insulation building mortar comprises, by weight, 42-48 parts of a cementing material, 15-25 parts of an auxiliary material, 17-22 parts of lightweight aggregate, 30-35 parts of a functional filler, and 1-2 parts of an additive; the cementing material is a mixture of sulphoaluminate cement and Portland cement; the auxiliary material is a mixture of fly ash and quartz sand, the lightweight aggregate is a mixture of 20-40-mesh hollow vitrified microbeads and 70-90-mesh hollow vitrified microbeads, and the mass ratio of the hollow vitrified microbeads to the hollow vitrified microbeads is 1: (2-3); the functional filler is a mixture of modified waste rubber particles and modified fibers; the additive is a mixture of a polycarboxylate superplasticizer and hydroxypropyl methyl cellulose ether. The mortar disclosed by the invention is good in thermal insulation performance and excellent in mechanical property, the method disclosed by the invention is simple to operate and low in cost, and the prepared mortar is excellent in performance.

The invention provides a method for preparing liquid reclaimed rubber through co-pyrolysis of lignin and waste rubber, and belongs to the field of rubber production and manufacturing. The industrial lignin, the waste rubber powder and the softening agent are uniformly mixed and then put into a screw extruder, moderate thermal cracking of the lignin and decrosslinking of the waste rubber powder are realized, and the prepared liquid regenerated rubber is added into a rubber composition and can replace tackifying resin, the softening agent and a plasticizer, so that the viscosity of a rubber semi-finished product is improved, the processability of a rubber material is improved, and the service life of the rubber material is prolonged. Meanwhile, the dispersion of the filler is facilitated. Meanwhile, the application range and the exerting effect of the lignin in the rubber material are also expanded, and the high-valued utilization rate of the lignin is improved.

The invention discloses a waste rubber sealing element recovery treatment all-in-one machine, and relates to the technical field of waste recovery, the waste rubber sealing element recovery treatment all-in-one machine comprises a treatment box, the outer wall of the front side of the treatment box is fixedly connected with a feeding hopper, the inner wall of the treatment box is fixedly connected with a sieve plate, and the outer wall of the front side of the treatment box is provided with a discharge port corresponding to the sieve plate. When the rubber sealing element is processed, the first driving motor drives the roller to rotate, rubber particles are screened through the screen holes, the particles meeting the size are thrown out, the particles which do not meet the standard are taken back through the blocking plate to be smashed again, the particle size uniformity is ensured, meanwhile, the knocking block is matched with the triggering rod, the sealing element accurately falls onto the smashing roller, deviation is avoided, and the screen holes are prevented from being blocked. And in addition, an inner gear ring and a third gear synchronously drive a rotating rod to rotate, a power-on guide column is matched with a magnetic attraction ring, the magnetic attraction ring moves in a reciprocating mode to attract metal impurities, the impurities fly into a magnetic collecting barrel after power failure, and the impurity removal efficiency and the rubber recovery purity and quality are improved.

The invention belongs to the technical field of concrete, and particularly discloses an aerated concrete block and a preparation method thereof. The aerated concrete block is prepared from the following raw materials in parts by weight: 70 to 80 parts of water, 25 to 30 parts of Portland cement, 30 to 35 parts of sand, 3 to 5 parts of aluminum powder, 1 to 3 parts of polycarboxylate superplasticizer, 7 to 9 parts of lime, 10 to 15 parts of modified waste rubber powder, 10 to 12 parts of hollow glass beads and 12 to 16 parts of modified polystyrene fiber. The aerated concrete block prepared in the invention has good strength, compactness and tensile strength, and the strength, durability and stability of the aerated concrete block are improved.

The invention relates to the field of environment-friendly materials, and particularly discloses modified waste rubber powder with a temperature-sensitive characteristic and a preparation method and application thereof.The preparation method of the modified waste rubber powder comprises the following steps that S1, waste rubber powder pretreatment is conducted, specifically, after waste rubber powder is cleaned to remove impurities, the waste rubber powder is soaked in a sodium hydroxide solution and then washed and dried, and pretreated waste rubber powder is prepared; s2, mixing the pretreated waste rubber powder with a dilute sulphuric acid solution, and drying to obtain primarily modified waste rubber powder; s3, mixing and dispersing the primarily modified waste rubber powder and carboxylated nano silicon dioxide, performing pressurized dipping treatment in a modification solution, and drying to obtain modified waste rubber powder; the modified liquid is mainly prepared from PAMAM (Polyamidoamine), polyisopropylacrylamide, genipin, polyvinyl alcohol and hydroxypropyl beta-cyclodextrin; the invention also discloses the modified waste rubber powder prepared by adopting the method and application of the prepared modified waste rubber powder in a concrete material. According to the invention, the waste rubber powder is modified so as to improve the strength and durability of concrete applied with the waste rubber powder.

The invention discloses ceramsite lightweight aggregate structural concrete and a preparation method thereof, and belongs to the technical field of concrete. The ceramsite lightweight aggregate structural concrete is prepared from the following raw materials in parts by mass: 240 to 270 parts of cement, 25 to 35 parts of mineral powder, 80 to 95 parts of fly ash, 210 to 250 parts of coal gangue crushed materials, 725 to 805 parts of modified coal gangue ceramsite, 10 to 30 parts of waste rubber materials, 3.5 to 5 parts of water reducing agents and 165 to 180 parts of water. The modified coal gangue ceramsite is obtained by coating the surface of a coal gangue ceramsite matrix with an epoxy resin layer and then grafting a hydrophilic polymer, the porosity of the coal gangue ceramsite matrix is 40-60%, and the aperture ratio is 1.5-6%. The epoxy resin layer on the surface of the modified coal gangue ceramsite provides an anti-permeability barrier, the hydrophilic polymer on the surface adjusts the wettability of the ceramsite, the binding force with other components of the concrete is improved, and the concrete has excellent shrinkage and dry crack resistance.

The invention discloses a method for regenerating waste rubber through cooperation of stirring and twin-screw extrusion, and belongs to the technical field of waste rubber regeneration, and the method comprises the following steps: S1, adjusting the temperature of a stirrer to be 200 DEG C and the rotating speed to be 1200 rpm; s2, adding waste rubber powder and a softening agent, and mixing for 5 minutes, so as to obtain rubber powder subjected to preliminary desulfurization and regeneration; s3, adjusting the temperature of the double-screw extruder to 100 DEG C and the rotating speed of a main machine screw to 30 rpm; s4, adding the rubber powder in the step S2, and extruding to obtain regenerated rubber powder; s5, the rubber powder is subjected to thin-passing batch-off on an open mill, and unvulcanized reclaimed rubber is obtained; s6, mixing the unvulcanized reclaimed rubber in the step S5 with TBBS, zinc oxide, stearic acid and sulfur, mixing in an open mill, batching out, and cooling; and S7, vulcanizing the rubber compound in a vulcanizing machine to obtain the vulcanized reclaimed rubber. The invention solves the technical problems of limitation on material shape and low production rate of waste rubber powder regenerated by a single twin-screw extruder, and is widely applied to waste rubber regeneration production.

The present invention discloses a pyrolysis oil and gas cutting device and method, comprising a waste rubber pellet pyrolysis module, a pyrolysis oil and gas high-efficiency cutting module, a pyrolysis oil and gas condensation module, a Roots blower, a non-condensable gas pressure-stabilizing and conveying module, and a control module. By spraying cooling water and circulating non-condensable gas onto the high-temperature pyrolysis oil and gas, the present invention utilizes the vaporization of the cooling water to absorb a large amount of latent heat of phase change, fully condensing the high-temperature pyrolysis oil and gas. Furthermore, the generated water vapor and non-condensable gas reduce the partial pressure of low-flash-point components in the oil and gas, causing them to continuously migrate from the liquid phase to the gas phase. While ensuring that the oil product flash point meets standards, the minimum flash point cutting temperature required for condensation of high-flash-point oil is lowered, thereby increasing the yield of high-flash-point oil.

The invention discloses a high-modulus and high-toughness asphalt modifier, a preparation method thereof, high-modulus modified asphalt based on the modifier and a preparation method thereof. The modifier comprises desulfurized rubber tire powder, polyolefin plastic particles, petroleum resin and turbid liquid of graphene or a derivative thereof. The high-modulus modified asphalt comprises matrix asphalt, a modifier, sulfur, light oil and a stabilizer. The high-modulus and high-toughness modifier disclosed by the invention can effectively consider the high and low temperature performance of asphalt, so that the shear strength, modulus and rutting resistance of high-modulus modified asphalt prepared based on the high-modulus and high-toughness modifier can be improved, meanwhile, the low-temperature crack resistance is enhanced, and the high-modulus and high-toughness modifier is suitable for pavement paving under severe conditions such as high temperature and heavy load. And the high-modulus and high-toughness modifier uses the waste rubber tires and the polyolefin waste plastic particles as raw materials, so that the production cost is reduced, the cyclic utilization of resources is realized, and the high-modulus and high-toughness modifier has remarkable economic benefits and environmental protection significance. Besides, when the high-modulus and high-toughness modifier and the high-modulus modified asphalt are prepared, a double-screw extruder and a single-screw extruder are adopted for composite reaction and granulation, a high-speed dispersion machine is adopted for shear mixing, and the preparation process is simple and easy to operate.

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 relates to the technical field of paper conveying, in particular to a stacking, forming and assembling mechanism for paper preparation and conveying, which comprises a machine main body, a conveying roller is rotatably connected in the machine main body, the conveying roller comprises end plates rotatably connected with the inner wall of the machine main body, and a roller body is fixedly connected between the end plates. A rolling shaft with the two ends rotationally connected with the end plates is arranged in the roller body, a rubber layer is wound on the surface of the rolling shaft, an opening is formed in the bottom of the roller body, an auxiliary shaft is rotationally connected to one side in the opening, and a turning plate is hinged to the other side in the opening. The rolling shaft is arranged in the roller body of the conveying roller to roll the rubber layer, the bottom opening is matched with the turning plate and the first spring buffer, fixing and replacing of the rubber layer are facilitated, the first telescopic rod, the rolling shaft, the clamping opening, the electromagnet and the first clamping plate of the rolling mechanism cooperate, the waste rubber layer is rapidly recycled, a new layer is pulled out, shutdown is reduced, and the effects of improving efficiency and reducing cost are achieved.

The invention discloses rubber separation treatment equipment for waste rubber recovery and a use method of the rubber separation treatment equipment. The rubber separation treatment equipment comprises a feeding bin, and the interior of the feeding bin is rotationally connected with a smashing roller; a bottom plate; an iron removal mechanism and a cleaning mechanism are arranged at the bottom of the feeding bin, a collecting mechanism used for containing separated iron wires is arranged in the iron removal mechanism, and a driving mechanism and a switching mechanism are arranged at the bottom of the iron removal mechanism; a connecting mechanism is arranged at the top of the cleaning mechanism, a locking mechanism is arranged at the bottom of the iron removal mechanism, and a positioning mechanism is arranged on the side portion of the locking mechanism. By means of the arrangement mode that the upper cylinder body, the connecting cylinder, the lower cylinder body, the supporting table, the driving motor and the connecting mechanism are matched, the upper cylinder body receives waste rubber subjected to secondary crushing, meanwhile, the connecting mechanism enables a baffle to shield the interior of the upper cylinder body, cleaning operation is facilitated after the waste rubber is subjected to secondary crushing, and the working efficiency is improved. And residual particle impurities in the waste rubber can be conveniently separated.

The invention belongs to the technical field of solid waste resource utilization, and particularly relates to a production process for producing low-sulfur marine fuel oil through waste rubber tire hydro-liquefaction, which comprises the following steps: (1) mixing oil slurry, waste tire rubber powder and a catalyst to obtain a mixture, enabling the mixture to pass through a swelling preheater, and enabling the mixture and hydrogen to enter a slurry bed reactor for hydro-liquefaction, the liquefied intermediate product passes through a high-pressure separator, hydrogen obtained through separation enters a fixed bed hydrofining device, and obtained liquid enters a rectifying tower through a pressure reducing valve; (2) feeding a liquid product at the bottom of the rectifying tower and hydrogen into a fixed bed hydrofining device; and (3) carrying out gas-liquid separation on the fixed bed hydrofining product, wherein the liquid obtained by the gas-liquid separation is the low-sulfur marine fuel oil. According to the invention, waste tire rubber powder and slurry oil are used as raw materials, the liquefaction of waste rubber tires is realized in high-pressure hydrogen and high-temperature environments, and a fixed bed hydrofining device is combined to further reduce the content of sulfur atoms so as to produce the low-sulfur fuel oil for ships.

The invention relates to OCA die cutting equipment and technology, and relates to the technical field of OCA die cutting equipment and technology, the OCA die cutting equipment and the OCA die cutting technology are included, and the OCA die cutting equipment and the OCA die cutting technology are sequentially subjected to the steps of selecting an OCA optical cement material and a release film, checking all parts of a die cutting machine and checking whether the equipment runs stably or not; the method comprises the following steps: loading an OCA (Optical Clear Adhesive) coiled material onto a die-cutting machine through an automatic feeding device, and slitting the OCA material; carrying out die cutting on the OCA optical cement material; in the die cutting process, a negative-pressure adsorption type waste discharging device is adopted to absorb and remove waste rubber part; the OCA optical cement material is sliced; carrying out quality inspection on the sliced OCA material; the inspected product is packaged; a complete product is produced through a complete die cutting process; through the complete die cutting process, a complete product is produced, the situation that the product subjected to die cutting slightly deforms can be avoided, when the product is detected, the detection error is large easily, and smooth die cutting and the qualified rate of the product are guaranteed.

The invention discloses a rapid waste rubber tool treatment device for teaching, and particularly relates to the technical field of waste rubber tool treatment, the rapid waste rubber tool treatment device for teaching comprises an outer shell, the outer shell comprises a cleaning tank, a cleaning assembly is arranged at the upper end of the cleaning tank, a supporting column is fixedly connected to the lower end of the cleaning tank, and a connecting column is fixedly connected to the lower end of the cleaning tank; the lower end of the connecting column is fixedly connected with a fixing seat, a cutting assembly is arranged in the connecting column, a cleaning assembly is arranged at the lower end of the cutting assembly, and a separating assembly is arranged in the fixing seat. According to the rapid treatment device for the teaching waste rubber tools, the multiple steps of cleaning, cutting and separating the teaching waste rubber tools are achieved through cooperation of all the structures, and a series of processes such as cleaning, cutting, metal separating and recycling of the metal-containing teaching waste rubber tools are integrally, efficiently, accurately and stably achieved; and the high-standard requirements of teaching places on resource management and environmental protection are met.

The utility model discloses a shearing device for production of desulfurized waste rubber, which is applied to the field of rubber production and comprises a shell, a feeding port is arranged on the shell, a circulating mechanism and a shearing mechanism are arranged in the shell, and the shell, the feeding port, the circulating mechanism and the shearing mechanism are arranged in the shell. Firstly, waste rubber can be conveyed into the shell through the feeding port and then is sheared through the shearing mechanism, and at the moment, the waste rubber which is not sheared in place is lifted upwards through the circulating mechanism, so that the waste rubber which is not sheared in place is sheared again by the shearing mechanism until all the waste rubber is sheared in place; the uniformity of the sheared rubber particles is ensured, and the influence on the subsequent processing quality is avoided.

The application relates to the technical field of pavement materials, and particularly discloses a high-strength asphalt-based pavement material and a preparation method and application thereof. The high-strength asphalt-based pavement material comprises the following raw material components in mass fractions: waste rubber powder 60-80 parts, base asphalt 20-50 parts, sodium lignosulfonate modified petroleum resin 10-20 parts, deacidified waste oil 5-15 parts and solid filler 20-30 parts; wherein the raw material components of the solid filler comprise furan resin glass fiber reinforced material, cement kiln dust, blast furnace slag and coal gangue powder. The high-strength asphalt-based pavement material provided by the application has excellent road performance, can maintain good stability at low temperatures, is not prone to cracking, the raw material components are cheap and easy to obtain, the preparation cost is low, and the treatment pressure of solid waste can be effectively relieved.

The invention provides a waste rubber and plastic pyrolysis system and application thereof.The waste rubber and plastic pyrolysis system comprises a feeding unit comprising a feeding bin, a material conveying mechanism and an anaerobic protection mechanism, a pyrolysis reaction unit comprising a first-stage pyrolysis reactor and a second-stage pyrolysis reactor, and each pyrolysis reactor at least comprises a heating cavity, a material conveying device and a heating source; the heating cavity provides a closed high-temperature environment under the action of the heating source, the material conveying mechanism pushes materials in the heating cavity in the preset direction, and an outlet of the first-stage pyrolysis reactor communicates with an inlet of the second-stage pyrolysis reactor, so that the materials sequentially pass through the first-stage pyrolysis reactor and the second-stage pyrolysis reactor to be subjected to multi-stage pyrolysis. The product recycling structure comprises a pyrolysis gas purifying and condensing device, the pyrolysis gas purifying and condensing device is connected with the second-stage pyrolysis reactor, and by applying the technical scheme, the technical problem that in the prior art, waste rubber and plastic pyrolysis and equipment carbon residue treatment are difficult can be effectively solved.

The invention discloses basalt fiber reinforced low-carbon environment-friendly asphalt and a construction method of the basalt fiber reinforced low-carbon environment-friendly asphalt on a high and cold road surface, and relates to the technical field of road engineering. The basalt fiber is subjected to ultrasonic treatment by a silane coupling agent KH-550 hydrolysate and dried, and the low-carbon additive is prepared from waste rubber powder and biological asphalt and is matched with an anti-stripping agent; adding biological asphalt, stirring at a high speed, adding basalt fibers in three times, stirring at a high speed, and finally adding an anti-stripping agent to prepare an asphalt composition; adding an asphalt composition for wet mixing, and then adding fibers for continuous mixing to obtain a mixture; after the lower bearing layer is preheated, a crawler-type paver paves at the temperature of 155-165 DEG C, and the speed and the loose paving coefficient are controlled; initial pressing, re-pressing and final pressing are carried out, and a double-steel-wheel and rubber-wheel road roller is used for rolling according to the temperature and the speed; and after compaction, the heat-insulating tarpaulin is covered. The low-temperature crack resistance and freeze-thaw resistance of the basalt fiber reinforced asphalt, the carbon emission reduction of the waste rubber powder and the biological asphalt and the construction quality guarantee through dynamic temperature control and intelligent compaction are realized, and the construction method is adaptive to the alpine regions and meets the requirements of green road construction.

The invention relates to the technical field of road engineering, in particular to an all-solid waste rubber-based composite modified foam cold recycled asphalt mixture and a preparation method thereof, and the all-solid waste rubber-based composite modified foam cold recycled asphalt mixture comprises the following components in parts by mass: 150-200 parts of graded precisely-controlled recycled aggregate, 10-25 parts of recycled mineral activity enhancing powder, 5-10 parts of an industrial solid waste reinforcing agent and 20-40 parts of solid waste-based recycled foam asphalt. The mixture utilizes various solid wastes for recycling, has excellent pavement performance, high strength, crack resistance and durability, can be constructed at normal temperature or low temperature, and is low in energy consumption and environment-friendly. Through composite modification of foamed asphalt and rubber powder, early strength and stability are significantly improved, the problem of slow development of early strength of a cold recycled material is overcome, the construction period is shortened, and traffic is quickly opened. The method is simple in process, low in cost and convenient to construct, meets the requirements of green and low-carbon construction, provides a new way for the double-carbon target in the traffic field, and is remarkable in economic and social benefits and wide in application prospect.

The invention discloses a multifunctional foam pad made of a regenerated composite material and a production process of the multifunctional foam pad, and belongs to the technical field of production of regenerated composite materials. The surface of the recycled PET non-woven fabric printing layer is provided with 50 + / -5 [mu] m micropores, the cat palm bionic gradient foaming layer (the density is 0.15-0.35 g / cm < 3 > gradient distribution) is formed by blending and foaming PVC recycled materials, PET bottle chips and waste rubber powder, and the glass fiber net reinforced rubber matrix layer and the triangular pyramid micro-sucker bottom layer are arranged from top to bottom. The preparation process comprises the steps of waste material near-infrared sorting and pretreatment, multi-stage dynamic blending granulation, supercritical CO2 gradient foaming, bionic calendaring forming and laser positioning hot-pressing compounding, high-valued utilization of multi-element waste materials is achieved through combination of bionic structure design and a green process, the product has sound insulation, buffering and anti-skid performance, the tear resistance is improved by 150%, and the service life of the product is prolonged. The problems that a traditional foaming cushion depends on raw plastic, is single in function and causes manufacturing pollution are solved, and resource circulation and function strengthening unification are achieved.

The invention provides an upgrading and purifying method for waste tire pyrolysis carbon black, and belongs to the technical field of upgrading, purifying and high-value utilization of waste tires and waste rubber pyrolysis carbon black. The upgrading and purifying method comprises the following steps: carrying out wet magnetic separation on waste tire pyrolysis carbon black to obtain pyrolysis carbon black subjected to magnetic separation; mixing the cracked carbon black subjected to magnetic separation with hydrobromic acid for acid leaching to obtain first acid leaching filtrate and a first carbon black product; adding zinc particles into the first acid leaching filtrate to obtain second filtrate; evaporating and crystallizing the zinc bromide solution to obtain zinc bromide; zinc bromide is prepared into heavy liquid, the first carbon black product is subjected to reselection, and a pure carbon black product and silicon dioxide tailings are obtained; introducing hydrogen sulfide gas into the ferric ion solution for purification and absorption to obtain sulfur and a third filtrate; and the third filtrate is subjected to electrolytic regeneration, and a regenerated ferric ion solution and hydrogen are obtained after electrolytic regeneration is finished. According to the method, the acid leaching byproduct zinc bromide is used as a reselection medium, and resource recycling is achieved while efficient separation and impurity removal are achieved.

The utility model discloses a material carrying device for green, cyclic and efficient treatment of waste rubber, which belongs to the technical field of related equipment for waste rubber recovery and comprises a moving vehicle body, a lead screw lifting mechanism and a bearing and lifting unit. The movable vehicle body has corresponding supporting force, and a rack is arranged at the upper end; the lead screw lifting mechanism is arranged on the rack and used for corresponding lifting operation. The bearing and lifting unit is connected with the lead screw lifting mechanism, located at the front end of the rack and used for bearing materials. The device is used for positioning the waste tires during transportation, the waste tires are placed in order, the tires are prevented from falling off in the carrying process, discharging is facilitated, the equipment cost is reduced, and the carrying efficiency is improved.

The invention relates to the technical field of pavement materials, and particularly discloses a high-strength asphalt-based pavement material as well as a preparation method and application thereof. The high-strength asphalt-based pavement material is prepared from the following raw material components in parts by mass: 60 to 80 parts of waste rubber powder, 20 to 50 parts of matrix asphalt, 10 to 20 parts of sodium lignin sulfonate modified petroleum resin, 5 to 15 parts of deacidified waste grease and 20 to 30 parts of solid filler, wherein the solid filler comprises the following raw material components: a furan resin glass fiber reinforced material, cement kiln ash, blast furnace slag and coal gangue powder. The high-strength asphalt-based pavement material provided by the invention has excellent pavement performance, can keep good stability at low temperature, is not easy to crack, is low in raw material components and easy to obtain, is low in preparation cost, and can also effectively relieve the treatment pressure of solid wastes.

The invention relates to the technical field of pavement materials, and particularly discloses an all-solid waste asphalt mixture as well as a preparation method and application thereof. The all-solid waste asphalt mixture is prepared from the following raw material components: activated waste rubber powder, waste rubber powder modified emulsified asphalt, a waste asphalt-based pavement material, aggregate, a fiber material and an additive, wherein the aggregate comprises coal gangue powder, waste magnesia carbon brick powder, nut shell powder, coarse aggregate, steel slag powder and fine aggregate; the fiber material comprises activated aramid fiber and waste rubber powder modified glass fiber reinforced plastic fiber; the additive comprises a smoke suppression viscosity reducer and a styrene-butadiene-styrene block copolymer. The all-solid waste asphalt mixture with excellent pavement performance is prepared by utilizing the synergistic effect of all the component raw materials, and the problem that the pavement performance of an asphalt regenerated mixture is poor due to the fact that existing solid waste is poor in compatibility with other components when being applied to the asphalt regenerated mixture is effectively solved.

The invention relates to the technical field of pavement materials, in particular to an all-solid-waste imitation asphalt material as well as a preparation method and application thereof. The all-solid-waste asphalt-imitating material is prepared from the following raw material components: waste rubber powder, waste plastics, kitchen waste grease, waste petroleum resin and waste filler, wherein the waste filler is prepared from the following raw material components in percentage by mass: 20 to 30 percent of waste glass fiber, 15 to 20 percent of straw residue, 15 to 20 percent of spent bleaching clay and the balance of coal gangue powder. The all-solid-waste asphalt-imitating material provided by the invention has excellent pavement performance, and the raw material components are wastes, so that the preparation cost is low, the raw material components are easy to obtain, and the treatment pressure of the wastes can be effectively relieved. According to the technical scheme, the problems that in the prior art, the preparation cost of an imitated asphalt material is high, and the material performance cannot reach the traditional asphalt level, so that the mechanical performance of an imitated asphalt mixture prepared from the imitated asphalt material is poor are effectively solved.

The invention belongs to the technical field of biomass and solid waste resource utilization, and particularly relates to a biomass activated waste rubber powder material and a preparation method and application thereof. Biomass, acetic acid and water are mixed, a reaction mixture is obtained through a hydrothermal reaction and acetone flushing, a moisture-containing biochar solid and a bio-oil-containing liquid are obtained through vacuum filtration, the moisture-containing biochar solid is dried to obtain biochar, a part of biochar is selected to be ground and dialyzed to obtain biomass carbon dots, and the biomass carbon dots are prepared into biomass carbon dots. Drying the liquid containing the bio-oil to obtain the bio-oil; mixing the obtained bio-oil, biochar, biomass carbon dots and waste rubber powder, and performing microwave activation to obtain biomass activated waste rubber powder. The regenerated asphalt can be obtained by doping the biomass activated waste rubber powder into the waste asphalt. The method provided by the invention can greatly reduce the stockpiling amount of biomass, waste tires and waste asphalt mixtures, improve the ecological environment of the expressway and reduce carbon emission, and has important significance for popularization and application of multi-source solid wastes in highway engineering.

The invention relates to the field of waterproof coiled materials, and discloses a modified waterproof coiled material based on a waste high polymer material and a preparation method thereof, and the modified waterproof coiled material comprises 40%-50% of waste thermoplastic polyurethane, 25%-30% of waste rubber powder, 15%-20% of asphalt, 5%-7% of nano-silica, 1%-2% of a silane coupling agent, 3%-5% of tackifying resin and 0.5%-1% of an antioxidant. The modified waterproof coiled material is prepared from waste high polymer materials, nano silicon dioxide is modified by a silane coupling agent and then forms chemical bonding or strong physical adsorption with the surface of a base layer, the interface bonding strength is remarkably improved, meanwhile, the tackifying resin is added, the overall viscosity of the coiled material is further enhanced, and the service life of the coiled material is prolonged. The adhesive can be firmly bonded under various base layer conditions, hollowing and falling phenomena are effectively prevented, resource recycling is realized, dependence on increasingly short raw materials such as traditional petroleum asphalt, SBS and APP is reduced, the production cost is reduced, the market competitiveness of the product is improved, the pressure of waste high polymer materials on the environment is relieved, and the adhesive has good application prospects. The sustainable development concept is met.

The invention provides a preparation method of a natural rubber composite material based on modified waste rubber powder recycling, and belongs to the technical field of waste rubber powder recycling and rubber mixing. The method comprises the following three main steps: firstly, preparing a deep eutectic solvent, mixing quaternary ammonium salt and a hydrogen bond donor, and stirring to obtain a uniform liquid; secondly, preparing modified waste rubber powder, mixing the waste rubber powder with a deep eutectic solvent, then carrying out ball milling treatment, destroying sulfur cross-linking bonds, and promoting the reaction of the deep eutectic solvent and the rubber powder; and finally, preparing the natural rubber composite material, namely mixing natural rubber, small materials, carbon black and the modified waste rubber powder in an internal mixer to obtain a final product. According to the method, energy consumption and pollutant emission are reduced, the production cost is reduced, and the application field of the rubber composite material is widened. By using the modified waste rubber powder, the mechanical property and the dynamic mechanical property of the composite material are close to or reach the level of an industrial carbon black / natural rubber composite material, and the composite material has remarkable environmental protection and economic benefits.

The invention relates to the technical field of asphalt pavement materials, and provides a preparation method of low-temperature rubber composite modified asphalt, which comprises the following steps: modifying matrix asphalt, adding vulcanized rubber powder, a network building agent and a cross-linking agent, uniformly stirring, and shearing at a high speed; carrying out swelling development after shearing is completed, then adding a plasticizer, and uniformly stirring to obtain rubber modified asphalt; and adding the premixed composite warm mixing agent into the rubber modified asphalt, and shearing to obtain the warm mixing type rubber composite modified asphalt. By combining a dual viscosity reduction mechanism of porous adsorption of the warm-mixing material A and microcrystalline lubrication of the warm-mixing material B, the mixing amount of the waste rubber is remarkably increased, performance degradation caused by high-temperature desulfurization is avoided, and the technical problem that the construction workability and pavement performance of the warm-mixing rubber asphalt are difficult to consider at the same time is effectively solved.