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Preparation method and application of epoxy asphalt compatibilizer

An epoxy bitumen and epoxy bitumen material technology, which is applied in building components, building insulation materials, buildings, etc., can solve the problems of construction workers' physical and environmental impact, harmful bitumen fumes, and high production energy consumption, and achieve overall delivery. Low link density, high local crosslink density, and improved compatibility

Inactive Publication Date: 2015-09-02
湖北恒标塑胶股份有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the epoxy asphalt aggregate that has been mixed must be transported from the mixing station to the construction site under the condition of heat preservation. Transportation is difficult; at the same time, during the heating process of epoxy asphalt, asphalt fumes harmful to human body will be produced, which will have a great impact on the body of the constructor and the environment

Method used

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  • Preparation method and application of epoxy asphalt compatibilizer
  • Preparation method and application of epoxy asphalt compatibilizer
  • Preparation method and application of epoxy asphalt compatibilizer

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preparation example Construction

[0047] The invention provides a kind of preparation method of epoxy asphalt compatibilizer, comprises the following steps:

[0048] a) Heating the heavy aromatic oil to 60-180°C;

[0049] b) Add a certain proportion of the mixture of isocyanate, initiator and anti-degradation agent into the heavy aromatic oil, and stir for 0.5-2 hours under heating to prepare the epoxy asphalt compatibilizer.

[0050] Preferably, the content of heavy aromatics in the heavy aromatic oil is 30-85% (by mass), more preferably 50-80%, more preferably 60-75%.

[0051] Preferably, the heating temperature of the heavy aromatic oil is 60-180°C, more preferably 80-160°C, more preferably 120-150°C.

[0052] Preferably, the amount of the isocyanate is 3-10% by weight of the heavy aromatic oil, more preferably 5-9%, more preferably 6-8%.

[0053] Preferably, the DHBP is used in an amount of 0.5-5% by weight of the heavy aromatic oil, more preferably 1-4%, more preferably 1-3%.

[0054] Preferably, the a...

Embodiment 1

[0082] Put 100 g of heavy aromatic oil (purchased from Wuhan Baohua Petrochemical New Material Development Co., Ltd., the same below) into a three-necked bottle with a stirrer, heat it to 150 ° C with an oil bath, and after keeping the temperature for 15 min, slowly add 3- Isopropyl-α, α-dimethylbenzyl isocyanate (TMI) (purchased from ALDRICH Company, the same below) 7.5g, styrene (St) (purchased from Sinopharm Chemical Reagent Co., Ltd., the same below) 7.5g and 2,5-Dimethyl-2,5-bis(tert-butylperoxy)hexane (DHBP) 2g (purchased from Chengdu Lijing Xiwang Fine Chemical Co., Ltd., the same below), after stirring for 1h, cooling, The epoxy asphalt compatibilizer of the present invention can be obtained. figure 1 Infrared spectrogram of the epoxy asphalt compatibilizer prepared in this embodiment.

[0083] Accurately take by weighing 30g asphalt (brand is No. 70 Shell asphalt, the same below), 12g epoxy asphalt compatibilizer, 10g epoxy asphalt thinner styrene (purchased from Sin...

Embodiment 2

[0096] Put 100g of heavy aromatic oil in a three-necked flask with a stirrer, heat it to 60°C with an oil bath, keep the temperature for 15min, and slowly add 3-isopropyl-α,α-dimethylbenzyl isocyanate (TMI) 3g, styrene (St) 3g and 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane (DHBP) 0.5g, after stirring for 1h, cooling, the present invention can be obtained The epoxy asphalt compatibilizer.

[0097] Accurately weigh 30g asphalt, 10g epoxy asphalt compatibilizer, 5g epoxy asphalt diluent styrene, 5g epoxy resin thinner 632, 20g epoxy resin, join in the common reaction kettle of 80 ℃ and stir 30min, obtain Part A of the epoxy bituminous material.

[0098] Add part A of the epoxy asphalt material, 5g of epoxy curing agent polyamide 650, and part B of the epoxy asphalt material into a normal temperature reaction kettle and stir for 20 minutes. After mixing evenly, cool the obtained mixture to room temperature to obtain epoxy resin. asphalt material. image 3 Fluorescence microgr...

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Abstract

The invention relates to a preparation method of an epoxy asphalt compatibilizer, which comprises the following steps: a) heating heavy aromatic oil to 60-180 DEG C; and b) adding isocyanate accounting for 3-10 wt% of the heavy aromatic oil, 0.5-5 wt% of initiator and 3-10 wt% of anti-degradant into the heavy aromatic oil, and stirring for 0.5-2 hours to obtain the epoxy asphalt compatibilizer. The epoxy asphalt compatibilizer obtained by the method can increase the compatibility between the matrix asphalt and epoxy resin. The application method of the epoxy asphalt compatibilizer comprises the following steps: adding asphalt, the epoxy asphalt compatibilizer, an epoxy asphalt diluter, an epoxy resin and an epoxy resin diluter into a reaction kettle, and mixing to obtain a part A of the epoxy asphalt material; and mixing the part A of the epoxy asphalt material with a part B epoxy asphalt curing agent of the epoxy asphalt material to obtain the epoxy asphalt material applicable to room-temperature construction. The material can be directly laid on the pavement at room temperature, or mixed with aggregate stone and laid on the pavement.

Description

technical field [0001] The invention relates to the technical field of new road materials, in particular to a method for preparing and using a compatibilizer that can be used to prepare epoxy asphalt materials that can be stirred, mixed and constructed at room temperature. Background technique [0002] Compared with ordinary asphalt, epoxy asphalt material has excellent high-temperature stability, low-temperature crack resistance, super fatigue resistance and excellent durability, and has become the first choice material in high-steel bridge deck pavement projects. In the process of preparing epoxy asphalt, since the main component of petroleum asphalt in epoxy asphalt is a mixture of aliphatic hydrocarbons and aromatic hydrocarbons, its solubility parameter is about 8.66, while the solubility parameter of epoxy resin is 10.36, so the mixed system is in It is difficult to be compatible in thermodynamics and become a uniform and stable system. In order to effectively prepare...

Claims

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Application Information

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IPC IPC(8): C08L91/00C08L25/06C08L51/00C08L95/00C08L63/02C08J3/24
Inventor 周威蒋涛文俊
Owner 湖北恒标塑胶股份有限公司
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