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Preparation method and application of wheel sticking prevention emulsified asphalt for sticky layers

A technology of emulsified asphalt and sticky wheel, which is applied in the direction of building components, building insulation materials, building structures, etc., can solve the problems of low-temperature performance defects of non-sticky wheel emulsified asphalt, the performance impact of the preparation method, etc., and achieve low glass transition temperature, Effect of improving low temperature performance

Active Publication Date: 2016-11-09
JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, some people use base asphalt, interface enhancer, aliphatic amine salt emulsifier or aliphatic quaternary ammonium emulsifier, hydrochloric acid, and cellulose ether water-soluble polymer with a weight average molecular weight of 30,000~70,000 as thickeners. Non-stick wheel emulsified asphalt is prepared, but the penetration of the non-stick wheel emulsified asphalt evaporation residue is less than 16cm, and 15 o The C ductility is less than 100cm, and the low-temperature performance of non-stick wheel emulsified asphalt prepared by this method has a fatal flaw
[0004] Although non-stick wheel emulsified asphalt has many advantages suitable for application, its preparation method has a direct impact on its performance, so it is of great significance to study a preparation method that can improve its low temperature performance

Method used

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  • Preparation method and application of wheel sticking prevention emulsified asphalt for sticky layers
  • Preparation method and application of wheel sticking prevention emulsified asphalt for sticky layers
  • Preparation method and application of wheel sticking prevention emulsified asphalt for sticky layers

Examples

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Embodiment 1

[0024] The preparation method of non-stick wheel emulsified asphalt for adhesive layer of the present invention, the steps are as follows:

[0025] 1) Take 490g of 70# petroleum asphalt and add 5g of SBS with a styrene content of 45% and a melting point of 110 o C polyethylene wax 2g, commercially available middle road WM-4198 asphalt viscosity reducer 3g, sulfur 0.2g at 160 o The modified asphalt was prepared by high-speed shearing at C temperature for 1 h. Heat modified asphalt to 170 o C heat preservation stand-by.

[0026] 2) Take 4g of commercially available Zhonglu EB-2212 sticky layer emulsifier and 3g of sodium carboxymethyl cellulose, add water to 492g at 45 o Keep warm at C temperature for later use.

[0027] 3) Add the soap liquid to the soap liquid tank in the German DT colloid mill at 45 o C temperature insulation, the modified asphalt is added to the asphalt tank in the colloid mill, at 170 o Keep warm in C, turn on the colloid mill, increase the speed of t...

Embodiment 2

[0032] The preparation method of non-stick wheel emulsified asphalt for adhesive layer of the present invention, the steps are as follows:

[0033] 1) Take 500g of 90# petroleum asphalt and add 5g of SBR with a styrene content of 53% and a melting point of 101 o C polyethylene wax 7g, commercially available Meide DAT viscosity reducer 5g, Vita linking agent 3g at 160 o In the case of C, the modified asphalt was prepared by high-speed shearing for 1 hour. Put the modified asphalt at 160 o C heat preservation stand-by.

[0034] 2) Take 5g of commercially available Meide AA-57 sticky layer emulsifier and hydroxyethyl cellulose, add water to 480g 50 o C heat preservation stand-by.

[0035] 3) Add the soap to the soap tank in the ENH modified asphalt colloid mill at 50 o Insulation under C, the modified asphalt is added to the asphalt tank in the colloid mill, at 160 oKeep warm in C, turn on the colloid mill, increase the speed of the grinding head to 6000r / min, and then emul...

Embodiment 3

[0040] The preparation method of non-stick wheel emulsified asphalt for adhesive layer of the present invention, the steps are as follows:

[0041] 1) Take 550g of 90# petroleum asphalt and add 3g of SEBS with a styrene content of 48% and a melting point of 138 o C polyethylene wax 4g, commercially available Meide M-1 viscosity reducer 2g, Vita linker 2g at 160 o In the case of C, the modified asphalt was prepared by high-speed shearing for 1 hour. Modified asphalt at 180 o C heat preservation stand-by.

[0042] 2) Take 8g of commercially available Meide DF-62E sticky layer emulsifier and 3g of hydroxypropyl cellulose, add water to 437g 60 o C heat preservation stand-by.

[0043] 3) Add the soap solution to the soap solution tank in the ENH modified asphalt colloid mill at 60 o Insulation under C, the modified asphalt is added to the asphalt tank in the colloid mill, at 180 o Keep warm in C, turn on the colloid mill, increase the speed of the grinding head to 30000r / min,...

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Abstract

The invention discloses a preparation method and an application of wheel sticking prevention emulsified asphalt for sticky layers. The preparation method comprises the following steps: 1, adding 0-9 parts of a polymeric elastomer material, 0-5 parts of polyethylene wax or ethylene-vinyl acetate wax, 0-5 parts of a viscosity reducer and 0-5 parts of modified asphalt stabilizer to 450-600 parts of asphalt to prepare modified asphalt; 2, adding 1-10 parts of an emulsifier and 0.1-3 parts of an emulsified asphalt stabilizer to 300-500 parts of water, and mixing above materials to prepare a soap solution; and 3, grinding and emulsifying the soap solution and the modified asphalt according to a mass ratio of 1:1 through a modified asphalt colloid mill to prepare the target product, wherein the temperature of the soap solution is 40-60 DEG C, and the emulsification temperature of the modified asphalt is 160-180 DEG C. A high proportion of the polybutadiene elastomer is adopted as the modifier for adjusting the low temperature performances of asphalt, so the softening point of evaporation residues of the prepared wheel sticking prevention emulsified asphalt reaches up to 90 DEG C or above, the penetration degree is greater than 30 cm, and the 15 DEG C ductility is greater than 100 cm.

Description

technical field [0001] The invention relates to a preparation method of road construction materials, in particular to a preparation method and application of non-stick wheel emulsified asphalt for sticky layers. Background technique [0002] Non-stick wheel emulsified asphalt is a kind of polymer modified emulsified asphalt. It uses petroleum asphalt as the main raw material, and uses surfactants and various chemical additives as auxiliary raw materials. A new type of composite waterproof coating which is modified and re-emulsified. It is an emulsion type waterproof coating, which can be sprayed, rolled or painted by hand. Through the evaporation of demulsification water, the polymer modified asphalt is formed into a film through the process of solid particle approaching, contact deformation, etc. It is a seamless coating. A complete waterproof and moisture-proof polymer modified emulsified bitumen waterproofing membrane. It can be constructed on a variety of wet or dry ba...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02C08L23/06C08L23/08C08L1/28C08L9/02C08K3/06C08K3/16C08K3/28C08J3/03
CPCC08J3/03C08J2395/00C08J2453/02C08L95/00C08L2201/54C08L2205/03C08L2205/035C08L53/02C08L23/06C08L1/286C08K3/06C08L9/06C08L1/284C08L53/025C08L23/0853C08K2003/162C08K3/28
Inventor 陈李峰陈香关永胜潘友强周文耿磊李芳芳
Owner JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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