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Preparation method of petroleum asphalt anti-stripping agent suitable for acid stone

A technology of petroleum asphalt and anti-stripping agent, which is applied in the direction of building insulation materials, building components, buildings, etc., can solve the problems of poor heat resistance and poor long-term effect, and achieve the effect of simple application method and improved water damage resistance

Inactive Publication Date: 2013-08-07
甘肃省交通规划勘察设计院股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although amine anti-stripping agents can improve the adhesion between asphalt and aggregates, most of these anti-stripping agents have a fatal weakness, that is, their poor heat resistance
At the same time, this kind of substance only has physical adsorption on the surface of acidic stone, so the long-term effect is poor.

Method used

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  • Preparation method of petroleum asphalt anti-stripping agent suitable for acid stone
  • Preparation method of petroleum asphalt anti-stripping agent suitable for acid stone
  • Preparation method of petroleum asphalt anti-stripping agent suitable for acid stone

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preparation example Construction

[0013] The present invention is suitable for The preparation method of the petroleum asphalt antistripping agent of acid stone, its step is:

[0014] (1) Weigh 100 parts of tungoleic acid, 5~20 parts of organic bentonite, mechanically stir the tungoleic acid and organic bentonite under the protection of carbon dioxide gas, and gradually heat to 280~300 o C, keep 2~4h, obtain nano-phyllosilicate / tung oil dimer acid;

[0015] (2) Slowly add nano-layered silicate / tung oil dimer acid into the system of diethylenetriamine, heat to 100-130 o C, nitrogen protection, at 200 ~ 250 o After keeping at the temperature of C for 2-4 hours, carry out vacuum dehydration, recover diethylenetriamine, and obtain polyamide-based nanocomposites;

[0016] (3) Wait until the temperature drops to 40-80 o At C, add diluent and compatibilizer, stir evenly, and then mix asphalt mixture.

[0017] According to the preparation method described above, slowly put nano-layered silicate / tung oil dimer ac...

Embodiment 1

[0022] Take by weight 100 parts of oleic acid, 5 parts of organic bentonite, 80 parts of diethylenetriamine, 5 parts of glycerol, 5 parts of dibutyl phthalate, and 5 parts of hard asphalt.

[0023] Tung oilic acid and organic bentonite were mechanically stirred under the protection of carbon dioxide gas, and gradually heated to 300 o C kept for 2h to obtain nano-phyllosilicate / tung oil dimer acid; slowly drop into nano-phyllosilicate / tung oil dimer acid in the system of diethylenetriamine, and heat to 120 o Nitrogen protection after C, 220 o C for 3 hours, vacuum deliquification, recovery of diethylenetriamine, polyamide nanocomposite material. When the temperature drops to 80 o At C, add diluent and compatibilizer, and mechanically stir evenly to prepare a new type of petroleum asphalt anti-stripping agent.

[0024] The above-mentioned new petroleum asphalt anti-stripping agent was added to No. 90 A-grade asphalt of Xinjiang Karamay Oil Refinery (referred to as Kelian), an...

Embodiment 2

[0046] Take by weight 100 parts of oleic acid, 10 parts of organic bentonite, 100 parts of diethylenetriamine, 5 parts of glycerol, 5 parts of dibutyl phthalate, and 5 parts of hard asphalt.

[0047] Tung oilic acid and organic bentonite were mechanically stirred under the protection of carbon dioxide gas, and gradually heated to 300 o C kept for 2h to obtain nano-phyllosilicate / tung oil dimer acid; slowly drop into nano-phyllosilicate / tung oil dimer acid in the system of diethylenetriamine, and heat to 100 o C after nitrogen protection, 210 o C for 2 hours, vacuum deliquification, recovery of diethylenetriamine, polyamide nanocomposite material. When the temperature drops to 60 o At C, add diluent and compatibilizer, and mechanically stir evenly to prepare a new type of petroleum asphalt anti-stripping agent.

[0048] The anti-stripping agent prepared above was added to Korean SK90 A-grade asphalt, and two foreign and domestic anti-stripping agents were selected for compar...

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Abstract

The invention relates to a preparation method of a petroleum asphalt anti-stripping agent suitable for acid stone, which aims at improving the adhesion of the petroleum asphalt anti-stripping agent to the acid stone, improving the water damage resistance of the asphalt mixture, improving the aging resistance of the asphalt and prolonging the service life of an asphalt pavement. The preparation method comprises the following steps of (1) measuring 100 parts of eleostearic acid and 5 to 20 parts of organic bentonite to be mechanically stirred and gradually heated to 280 to 300 DEG C, and preserving the temperature for 2 to 4h to obtain nano layered silicate / tung oil dimmer acid; (2) slowly placing the nano layered silicate / tung oil dimmer acid into a diethylenetriamine system to be heated to 100 to 130 DEG C, introducing the nitrogen gas, preserving the temperature of 200 to 250 DEG C for 2 to 4h, carrying out the vacuum dehydration, recycling the diethylenetriamine to obtain a polyamide-based nano composite material; and (3) cooling the material to the temperature of 40 to 80 DEG C, adding diluting agent and phase solvent to be uniformly mixed, and then carrying out the blending of the asphalt mixture.

Description

technical field [0001] The invention relates to the field of polymer-based nanocomposite materials, in particular to the preparation technology of a petroleum asphalt anti-stripping agent for acidic stone materials. Background technique [0002] In the central and northwestern regions of my country, alkaline stones are scarce, and acidic stones are mostly used. Acidic stone materials (granite, sandstone, quartzite, etc.) have the characteristics of hard, compact, and strong wear resistance, and can give full play to the embedding effect between aggregates. The disadvantage is that its adhesion to asphalt is not good, and it is easy to cause the peeling of the asphalt film under the action of moisture, resulting in water damage such as particle drop, looseness, and pits on the asphalt pavement. [0003] The water damage of asphalt pavement is one of the main disease forms that affect the performance of asphalt pavement, and its cause is the adhesion between asphalt and aggre...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L77/08C08G69/34C08K3/34
Inventor 张国宏韩友续吴敏刚樊江李晓民赵璠新余小龙郭怀存魏定邦赵静卓李刊
Owner 甘肃省交通规划勘察设计院股份有限公司
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