Lignin quaternary ammonium salt complex asphalt emulsifier complex formulation technology optimization

A technology of asphalt emulsifier and emulsifier, which is applied in building components, building insulation materials, buildings, etc., can solve the problems of poor emulsification effect, improve emulsification effect, improve interface activity and oil phase adaptability, and reduce adsorption loss Effect

Inactive Publication Date: 2015-06-10
QINGDAO HUICHENG PETROCHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the long-term practice, it is found that a single emulsifier, the emulsification effect is often not good

Method used

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  • Lignin quaternary ammonium salt complex asphalt emulsifier complex formulation technology optimization
  • Lignin quaternary ammonium salt complex asphalt emulsifier complex formulation technology optimization
  • Lignin quaternary ammonium salt complex asphalt emulsifier complex formulation technology optimization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Preparation of emulsified asphalt:

[0025] Accurately weigh a certain amount of AB compound asphalt emulsifier according to T0655-1993 emulsified asphalt storage stability, dissolve it in 100mL water, heat the emulsifier aqueous solution to 70°C, and adjust its pH value to 1-2. Weigh 100 g of pitch and heat to 120°C. Preheat the colloid mill with hot water. After starting the colloid mill, first add the hot water solution of the emulsifier, then slowly pour the hot asphalt into the colloid mill, stop the machine after emulsifying for 1 minute, and bottle the emulsified asphalt emulsion after cooling down to room temperature.

[0026] Storage stability test of emulsified asphalt:

[0027] According to the T0655-1993 emulsified asphalt storage stability test, the above-mentioned emulsified asphalt was lowered to room temperature and bottled, and the storage stability was observed after standing still. The stable storage time is 5 days, and the emulsion has no stratific...

Embodiment 2

[0034] Example 2: Weigh a certain amount of AB compound emulsifier in a beaker, add 200ml of water, heat to 50-60°C, stir with a glass rod to dissolve it, and adjust the pH to 2-3 with industrial hydrochloric acid. Then weigh 300AH-90 asphalt and heat it to 120°C to melt it. Start the colloid mill (preheat it with 60°C hot water before starting), inject the emulsifier aqueous solution into the colloid mill, then slowly pour the asphalt into the colloid mill for emulsification, and put the emulsion into the colloid mill for about one minute. Mineral water bottle, close the colloid mill.

[0035] Weigh 100g of stone, take a certain amount of water and additives, add it to an iron bowl, mix evenly, then weigh a certain amount of emulsified asphalt and SBR styrene-butadiene latex, pour it into an iron bowl, stir quickly and fully, and start timing , record the start of mixing time and molding time.

[0036] Emulsification conditions: 300AH-90 asphalt, pH=2~3, emulsifier dosage i...

Embodiment 3

[0042] Example 3: Accurately weigh a certain amount of AB compound asphalt emulsifier, dissolve it in 100mL of water, heat the emulsifier aqueous solution to 70°C, and adjust its pH value to 1-2. Weigh 100 g of pitch and heat to 120°C. Preheat the colloid mill with hot water. After starting the colloid mill, first add the hot water solution of the emulsifier, then slowly pour the hot asphalt into the colloid mill, stop the machine after emulsifying for 1 minute, and bottle the emulsified asphalt emulsion after cooling down to room temperature.

[0043] Weigh 100g of stone, take a certain amount of water and additives, add it to the iron bowl, mix evenly, then weigh a certain amount of emulsified asphalt, pour it into the iron bowl, stir quickly and fully, and start timing, and the record can be mixed time and molding time.

[0044] According to the T0655-1993 emulsified asphalt storage stability test, the above-mentioned emulsified asphalt was lowered to room temperature and ...

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Abstract

N-[2-hydroxy-3-octadecyl amino] propyl trimethyl ammonium chloride (A) is respectively compounded with lignin quaternary ammonium salt (B) to obtain complex emulsifier AB, when the complex emulsifier AB dosage is 0.4% of the total amount of emulsified asphalt, and the emulsifier A / B (molar ratio) is 0.7 / 0.1, the emulsified asphalt has good storage stability, and the emulsified asphalt can be widely used in the adhesive layer, fog seal layer, non solvent cold mixing, recycling for asphalt and asphalt pavement substrate stabilizing.

Description

technical field [0001] The invention relates to the practical application of organic chemical products in the field of asphalt road pouring, and belongs to the fields of chemical engineering and building materials. Background technique [0002] Emulsified asphalt is to heat cold asphalt to a flowing state, and then through the action of mechanical force, the asphalt can be dispersed in an aqueous solution containing a certain amount of emulsifier in a fine particle state to form an oil-in-water (0W / ) asphalt Emulsion, this kind of asphalt emulsion is liquid at room temperature and has high fluidity. Emulsified asphalt is the road asphalt that is usually used at high temperature. A road construction material with low weight and good fluidity. It can be used at room temperature and can be used with cold and damp stones. Emulsified asphalt is divided into cationic emulsified asphalt, anionic emulsified asphalt and nonionic emulsified asphalt. The bitumen particles of cationi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/03C08L95/00C04B26/26
Inventor 徐苹于冉刘兆东
Owner QINGDAO HUICHENG PETROCHEM TECH
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