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Anti-stripping sulfur asphalt as well as preparation method and application thereof

An anti-stripping and sulfur-resistant technology, applied in building components, building insulation materials, buildings, etc., can solve the problems of short-term, bird-repelling effect of aggregate peeling, loose sulfur asphalt, etc., to improve compatibility, realize bird-repelling function, good compatibility

Pending Publication Date: 2022-05-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the current problem that sulfur asphalt is prone to loosening or aggregate spalling and bird repelling effect is short-lived, the present invention provides an anti-stripping sulfur asphalt and its preparation method and its application in airport runways

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Preparation of sulfide-naphthalene series

[0047] Add 5.5 kg of sulfur and 1.5 kg of coal tar (the boiling range is 210°C to 230°C, and the mass content of naphthalene series is 79%) into a closed container, and in the presence of protective gas, heat, melt and react to obtain vulcanization- Naphthalene series. The protective gas is nitrogen; the reaction temperature is 215° C., the reaction pressure is 3.2 MPa, and the reaction time is 65 minutes. The distribution ratio of each component is shown in Table 1.

[0048] (2) Preparation of particulate matter

[0049] Weigh 2.2 kg of EVA, 1.2 kg of styrenated phenol, and 1.2 kg of 2-mercaptopyridine quaternary ammonium salt, mix them uniformly in a kneader, and add the sulfurized naphthalene series prepared in the above (1) step while kneading , after adding all the vulcanization-naphthalene series, continue mixing, the temperature is 138°C, and the mixing time is 62min; then extrude and granulate, the extrusion temp...

Embodiment 2

[0056] (1) Preparation of sulfide-naphthalene series

[0057] Add 19.0 kg of sulfur and 4.9 kg of coal tar (the boiling range is 230°C to 245°C, and the mass content of naphthalene series is 56%) into a closed container, and in the presence of protective gas, heat, melt and react to obtain vulcanization— Naphthalene series. The protective gas is carbon dioxide; the reaction temperature is 227°C, the reaction pressure is 4.8 MPa, and the reaction time is 110 min. The distribution ratio of each component is shown in Table 1.

[0058] (2) Preparation of particulate matter

[0059] Weigh 7.7 kg of EVA, 2.8 kg of styrenated phenol, and 2.8 kg of 2,4-diaminopyrimidin-5-ol dihydrochloride, put them in a kneader and mix them evenly, and add the above step (1) while kneading The prepared vulcanization-naphthalene series, after all the vulcanization-naphthalene series are added, continue to knead at a temperature of 178°C, and the mixing time is 88min; then extrude and granulate at an...

Embodiment 3

[0066] (1) Preparation of sulfide-naphthalene series

[0067] Add 12.0 kg of sulfur and 3.0 kg of ethylene pyrolysis tar (boiling range is 225°C to 245°C, and the mass content of naphthalene series is 65%) into a closed container, heat and melt in the presence of protective gas and react to obtain vulcanization - naphthalene series. The protective gas is nitrogen; the reaction temperature is 205° C., the reaction pressure is 4.0 MPa, and the reaction time is 90 minutes. The distribution ratio of each component is shown in Table 1.

[0068] (2) Preparation of particulate matter

[0069] Weigh 5.0 kg of EVA, 2.0 kg of styrenated phenol, O-(7-azabenzotriazol-1-yl)-N,N,N',N'-tetramethylurea tetrafluoroborate quaternary ammonium salt 2.0 kg, placed in a kneader and mixed evenly, while kneading, add the vulcanization-naphthalene series prepared in the above step (1), and continue kneading after all the vulcanization-naphthalene series are added, the temperature is 155 °C, and the ...

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Abstract

The invention discloses anti-stripping sulfur asphalt as well as a preparation method and application thereof. The anti-stripping sulfur asphalt is prepared from the following raw materials: 5 to 20 parts of sulfur, 1 to 5 parts of naphthalene series, 2 to 8 parts of ethylene-vinyl acetate copolymer, 1 to 3 parts of styrenated phenol, 1 to 3 parts of nitrogen-containing aromatic compound and 60 to 90 parts of petroleum asphalt. The preparation method of the anti-stripping sulfur asphalt comprises the following steps: (1) carrying out a reaction on sulfur and a naphthalene-based substance in an inert atmosphere, and (2) mixing and granulating an ethylene-vinyl acetate copolymer, styrenated phenol, a nitrogen-containing aromatic compound and a reaction product obtained in the step (1) to obtain particles, and (3) heating and melting the petroleum asphalt, and then adding the particulate matters to obtain the anti-stripping sulfur asphalt. The anti-stripping sulfur asphalt is particularly suitable for paving airport runways. The anti-stripping sulfur asphalt disclosed by the invention not only has relatively strong anti-stripping capability and very strong adaptability to a high-temperature wake flow environment of an airplane, but also has an ecological bird repelling function.

Description

technical field [0001] The invention belongs to the field of petroleum industry and basic material chemistry, and in particular relates to an anti-stripping sulfur asphalt and a preparation method thereof, which is especially suitable for the anti-stripping sulfur asphalt of airport runways. Background technique [0002] Bird strike accidents are an important issue for airport safety. Bird strike (Bidsrtrike) refers to a flight safety accident or incident caused by an aircraft being struck by a bird during take-off, flight or landing. The characteristics of bird strikes are that most birds are small in size and light in weight, so the damage of bird strikes mainly comes from the speed of the aircraft rather than the quality of the birds themselves. With the development of aviation technology, the speed of man-made aircraft continues to increase, and the speed of some fighter jets can reach several times the speed of sound. According to the momentum theorem, a 0.45 kg bird ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L23/08C08K13/02C08K3/06C08K5/01C08K5/13
CPCC08L95/00C08L23/0853C08K13/02C08K3/06C08K5/01C08K5/13
Inventor 王兴越刘国光陈保莲李臣泽宋乐春范思远陈杰宁爱民程国香李志军
Owner CHINA PETROLEUM & CHEM CORP
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