67 results about "Tar/pitch/asphalt" patented technology

The invention discloses an asphalt-based hot-melt pressure-sensitive adhesive and a preparation method thereof. The asphalt-based hot-melt pressure-sensitive adhesive comprises the following ingredients in percentage by weight: 35-50% of asphalt, 10-20% of an asphalt modifier, 20-40% of a softener, 5-15% of a tackifier, 10-20% of a filler, 1-3% of a cross-linker and 0.5-1.5% of an antiager. The hot-melt pressure-sensitive adhesive is superior to an asphalt adhesive for a self-adhesion waterproof roll in performance, and has the advantages of low cost, convenient preparation and the like compared with hot-melt pressure-sensitive adhesives such as EVA (ethylene-vinyl acetate copolymer); meanwhile, the invention discloses the preparation method of the product, which is convenient to produce and can be produced by a traditional reaction kettle for producing a waterproof roll asphalt mixture without the need of a special precise reaction kettle for a hot-melt adhesive.

A nonvolatile cold modified asphalt binder and a nonvolatile cold recycled asphalt mixture using the same are manufactured by optimally mixing a petroleum asphalt, a native asphalt, a polymer modifier, process oil, and an adhesive strength enhancer. The nonvolatile cold modified asphalt binder includes at least one petroleum asphalt selected from a straight asphalt or a blown asphalt; at least one native asphalt selected from gilsonite, glance pitch, and grahamite; a rubber-modified-compound (RMC) polymer modifier which is a vinyl aromatic hydrocarbon-conjugated diene block copolymer including at least one of a styrene-butadiene block copolymer (SBS), a styrene-isoprene block copolymer (SIS), and a styrene-ethylene-butylene block copolymer (SEBS); at least one process oil selected from paraffin oil, naphthenic oil, aromatic oil, natural oil, and mineral oil; and at least one adhesive strength enhancer selected from rosin esters, modified acryls, modified silicones, polyvinyl esters, and silicone resins.

The invention provides a high-modulus asphalt modifier, high-modulus composite modified asphalt, an asphalt mixture and a preparation method thereof. The high-modulus asphalt modifier is prepared from40 to 60 parts of desulfurized rubber tire powder, 30 to 60 parts of polyolefin plastic particles, 0 to 20 parts of petroleum resin or solid asphalt and 0 to 6 parts of a stabilizing agent. The high-modulus composite modified asphalt comprises 80 to 85 parts of matrix asphalt, 10 to 15 parts of the high-modulus asphalt modifier, 0 to 0.4 part of sulfur and 0 to 7 part of a light oil component. The asphalt mixture comprises 100 parts of mineral aggregate and 4.0 to 5.5 parts of the high-modulus composite modified asphalt. By adopting the high-modulus composite modified asphalt provided by theinvention, the problems that the compatibility of plastic and the asphalt is poor and the plastic is easy to separate and float from the asphalt are solved; and when an asphalt road surface is formedby the asphalt mixture, the modulus and anti-rutting capability of an asphalt structure layer can be remarkably improved.

The invention discloses a coated modified artificial graphite negative electrode material, a preparation method thereof and a lithium ion battery, and the method comprises the following steps: sequentially carrying out wet coating and carbonization treatment on secondary particles of artificial graphite. The raw materials of the secondary particles of the artificial graphite comprise petroleum coke and/or coal coke and asphalt. The softening point of the asphalt is 130-160 DEG C. A coating agent adopted in the wet coating process comprises coal tar residual oil and graphene slurry. The mass ratio of the coal tar residual oil to the graphene in the graphene slurry is 6: 0.005-6: 0.64. The coated modified artificial graphite negative electrode material is obtained by the method. The coated modified artificial graphite negative electrode material prepared by the preparation method disclosed by the invention takes charge-discharge rate and high-capacity first efficiency into account, and has excellent performance in the aspects of discharge capacity, first efficiency, high-rate charge-discharge, circulation and the like.

The invention relates to an ultraviolet aging test method for an asphalt material (including asphalt, asphalt mortar and an asphalt mixture) in a tension state. The ultraviolet aging test method comprises the following steps: selecting a light source for an ultraviolet aging simulation test, and determining the change of the irradiation intensity of the light source along with space and time; preparing samples of the asphalt material; carrying out an ultraviolet aging test on the asphalt material in the tension state, carrying out a subsequent performance test, and analyzing test results. By implementing the test method provided by the invention, a light aging process of an asphalt pavement under a traffic load and ultraviolet light irradiation can be well simulated; an ultraviolet light aging degree of the asphalt material can be comprehensively analyzed; the light aging rules of the asphalt material can be revealed. The test method is reasonable in design, and is detailed and specific.

The invention provides a toughened asphalt modifier, toughened compound modified asphalt, an asphalt mixture and a preparation method thereof. The toughened asphalt modifier comprises 65 to 92 parts of desulphurized rubber tire powder, 0 to 20 parts of polyolefin plastic particles, 0 to 15 parts of SBS, 0 to 15 parts of SBR and 0 to 6 parts of a stabilizer. The toughened compound modified asphaltcomprises 60 to 85 parts of matrix asphalt, 15 to 40 parts of toughened asphalt modifier, 0 to 0.3 part of sulfur and 0 to 7 parts of light-weight oil component. The asphalt mixture comprises 100 parts of mineral aggregates and 5.0 to 6.0 parts of toughened compound modified asphalt. By adopting the toughened compound asphalt modifier, the problems of the rubber and plastic modified asphalt that the processing difficulty is high and the stability of the finished product is poor can be solved. When the asphalt mixture is used for forming the asphalt pavement, the asphalt mixture of the invention has high anti-cracking capacity and long pavement service life.

The invention relates to easily-prepared anti-adhesive emulsified asphalt achieving normal-temperature rapid demulsification and a preparation method thereof, and belongs to the technical field of road engineering materials. The anti-adhesive emulsified asphalt is prepared from heavy traffic road asphalt, deoiled asphalt, an asphalt interface modifier, polymer latex, an auxiliary, an emulsifier, an acidifying or alkalizing agent and water; the preparation method comprises the steps that the emulsifier, the polymer latex and an auxiliary-aqueous solution are added into water, the PH value is adjusted, liquid soap is prepared, the heavy traffic road asphalt, the deoiled asphalt and the asphalt interface modifier are stirred to be uniform at a high temperature and heated to reach a proper temperature, the mixture and the liquid soap are subjected to colloid mill high-speed shear preparation, and the anti-adhesive emulsified asphalt is obtained. The anti-adhesive emulsified asphalt has the advantages that the emulsifying temperature of the asphalt is low, emulsification is easy, and the emulsification technology is simple and easy to operate; demulsification can be conducted rapidly at a normal temperature, and the construction efficiency is improved; the anti-adhesive emulsified asphalt has the advantage of being resistant to wheel adhesion when serving as a road adhesion layer, the phenomenon that due to damage of a construction vehicle to the adhesion layer, the adhesion layer loses efficacy is avoided, and the service life of a road is prolonged.

The subject invention provides microbe-based products, as well as their use to improve oil well production and increase the value of heavy crude oil. Specifically, the subject invention provides cultivated yeast products, which can be applied to oil and/or oil and gas production equipment to improve production and increase the economic value of heavy crude oil by, for example, upgrading heavy oils and/or converting heavy hydrocarbon substances, such as asphalts, asphaltenes, tars, bitumens and/or petcokes into lighter hydrocarbon substances.

The invention discloses an odorless asphalt mixture, a preparation method thereof and an application of the odorless asphalt mixture on a pavement, and the preparation method comprises the following steps: carrying out low-temperature plasma modification on a graphdiyne nano material to obtain a graphdiyne modified solution; mixing 1-10 parts by weight of magnesium hydroxide, 1-2 parts by weight of TEOS, 1-5 parts by weight of vegetable oil, 1-10 parts by weight of SBS and 1-2 parts by weight of an odor inhibitor to obtain an asphalt composite modifier; heating the matrix asphalt to 150 to 170DEG C; then adding an asphalt composite modifier and graphdiyne modification liquid; wherein the weight ratio of the matrix asphalt to the asphalt composite modifier to the graphdiyne modification liquid is 100: (1-5): (10-25), shearing and heating to 185-220 DEG C, shearing and swelling for 0.5-2 hours, then cooling to 170-180 DEG C to obtain the odorless asphalt mixture, drying and packaging toobtain the odorless asphalt mixture. By selecting a novel nano material graphdiyne, compared with traditional materials such as graphene and carbon nanotubes, the optimization efficiency of the performance of the odorless asphalt is higher.

The invention relates to a composition for modifying asphalt, modified asphalt, production methods of the composition and the modified asphalt, and an asphalt mixture. The composition for modifying asphalt comprises (A) natural asphalt, (B) an asphalt softening agent, (C) a cross-linking agent and (D) a coupling agent; relative to the total mass of the natural asphalt (A), the content of the asphalt softening agent (B) is 15-50% by mass, the content of the cross-linking agent (C) is 0.5-10% by mass, and the content of the coupling agent (D) is 1-6% by mass; and the size of mineral particles in the natural asphalt (A) is less than 800 meshes. The modified asphalt is a cured product of a mixture of the composition for modifying asphalt and matrix asphalt. The asphalt mixture provided by the invention contains the modified asphalt provided by the invention.

The present invention relates to a co-solubilization process for preparation of a polymer modified bitumen/asphalt and emulsified polymer modified bitumen/asphalt from bitumen, polymer, emulsifier etc. The present invention further relates to a polymer modified bitumen comprising bitumen and styrene-butadiene-styrene (SBS) linear co-polymer having high softening point. The present invention also relates to the use of the polymer modified bitumen and its emulsion in in micro-surfacing for maintenance of pavements.

The invention provides a root-puncture-resistant self-healing waterproof coiled material. The root-puncture-resistant self-healing waterproof coiled material is prepared from No.10 asphalt, No.60 asphalt, a composite root retarder, SBS, PVA, a KH-560 coupling agent, a filler, an active agent, a light stabilizer, coconut oil fatty acid, a sodium perfluoro-octanoate water solution and dicumyl peroxide. The preparation method comprises the steps of premixing, high-speed shearing and mixing, the high-speed shearing speed is 8-10 Kr/min, the environment humidity is kept at 60.5 +/- 0.5%; in the mixing process, the jacking pressure is 0.75-0.8 MPa, and the rotating speed is 65-70 rmp/min. The root-puncture-resistant self-healing waterproof coiled material has excellent root puncture resistance and a long service life, after thermal aging, the root puncture resistant is enhanced and the service life is prolonged; the coiled material also has a large excellent tensile force and good wind uplift resistance, the maximal peak tensile force is 1017-1105 N/50 mm, the wind uplift resistance reaches 12.5-14.8 KPa, and the application range is wide.

The invention provides coated asphalt, an asphalt felt and a preparation method and application of the asphalt felt. The coated asphalt is prepared from the following components including, by weight,40-60 parts of oxidized asphalt and 15-40 parts of inorganic filler. The coated asphalt is obtained by firstly oxidizing matrix asphalt and then conducting filling with the inorganic filler, and has good high and low temperature performance and water damage resistance. The coated asphalt is applied to the asphalt felt, and the mass per unit area of each material contained in the asphalt felt is controlled, so that the asphalt felt is smooth in surface and uniform in thickness, can keep excellent flexibility at low temperature, can keep excellent heat resistance at high temperature, and has excellent compressive strength, tearing strength, shrinkage resistance and waterproof capacity; and in addition, the adaptability to foam glass bricks is excellent, the pressure bearing capacity and uniformity of the foam glass bricks can be remarkably improved, and the effects of water resistance, moisture resistance and shrinkage resistance are achieved on a cold insulation layer of an LNG storagetank.

Asphalt, chemically reacted, comprising a bifunctional organosilane of the epoxy, amino and ureide type in a proportion of 0.4 to 2% by weight; at least one petrous aggregate; and a catalyst in a proportion of 10 to 20% by weight; wherein said bifunctional organosilane is selected from the groups consisting of 2-(3,4-epoxycyclohexyl)-ethyltrimetoxisilane, 2-3,4-epoxycyclohexyl)-ethyltrietoxisilane, 3-aminopropyltriethoxysilane, 3-aminopropyl silanetriol, 3-aminopropyltrimethoxysilane, 3-aminopropylmethyldiethoxysilane, N-(2-aminoethyl)-3-aminopropylmethyldimetilsilane, 3-(2-aminoethylaminopropyl)-trimethoxysilane, N-(2-aminoethyl)-3 aminopropyl triethoxysilane, 3-(2-aminoethylamino)-propyl-dimethoxysilane, trimethoxysilane diethylenetriamine propyl-3, γ-piperazinyl butyl dimethyl propyl silane, 3-(N-phenylamine) propyltrimethoxysilane, 3-(N, N-dimethylaminopropyl) aminopropyl-methyldimethoxysilane, 3-ureidepropyltrimethoxysilane, 3-ureidepropyltrietoxisilano; and wherein said bifunctional organosilane increases the asphalt adhesion with the at least one petrous aggregate and the water resistance even in case of immersed into the same. Said asphalt is designed to be used in the production of hot and cold asphaltic mixtures as well as foamed asphalt, asphaltic emulsions and other applications related to the use thereof.