Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Anti-aging modified asphalt and preparation method thereof

A modified asphalt, anti-aging technology, applied in building components, building insulation materials, buildings, etc., can solve the problems of reduced service life of asphalt pavement, hardening of asphalt pavement, unsatisfactory effect, etc., to achieve excellent anti-aging performance, improve Effect of penetration resistance and corrosion resistance, excellent ultraviolet shielding ability

Pending Publication Date: 2020-07-31
郭仁圆
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As we all know, asphalt has been widely used in road surface paving, but because the asphalt pavement is exposed to the air for a long time, it will be radiated and corroded by sunlight, climate temperature, rain and air, etc., resulting in hardening and cracking of the asphalt pavement. The service life of asphalt pavement is greatly reduced
In order to overcome this problem, those skilled in the art have developed a variety of modified asphalts, but the effects are mostly unsatisfactory, and the developed modified asphalts in terms of UV resistance and anti-aging still cannot meet our needs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Anti-aging modified asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] S1: Prepare materials;

[0045] S2: Preparation of modified SBS rubber:

[0046] Take layered manganese dioxide and nitric acid, stir and react for 3 days, filter with suction, wash with water until the pH is 6, and dry at 80°C for 7 hours to obtain material A; take tetramethylammonium hydroxide, dissolve in deionized water, stir for 10 minutes, and then add the material A, stirred for 7 days, centrifuged and washed to obtain material B;

[0047] Take material B and dioctadecyldimethylammonium chloride, stir at 50°C for 3 hours, centrifuge, wash with water, and dry in vacuum at 50°C to obtain a modified material;

[0048] Take SBS rubber, heat stabilizer, modified material and plasticizer, place it in a mixer and knead for 10 minutes at a mixing temperature of 160°C to obtain modified SBS rubber;

[0049] S3: Preparation of additives:

[0050] Take cerium nitrate hexahydrate and zinc nitrate hexahydrate, mix and stir for 5 minutes, then add graphene oxide and citric ...

Embodiment 2

[0059] S1: Prepare materials;

[0060] S2: Preparation of modified SBS rubber:

[0061] Take layered manganese dioxide and nitric acid, stir and react for 3.5 days, filter with water, wash with water until the pH is 6, and dry at 80°C for 7.5 hours to obtain material A; take tetramethylammonium hydroxide, dissolve in deionized water, stir for 15 minutes, and then Add material A, stir for 7 days, centrifuge and wash to obtain material B;

[0062] Take material B and dioctadecyldimethylammonium chloride, stir at 52°C for 3.2h, centrifuge, wash with water, and dry in vacuum at 50°C to obtain the modified material;

[0063] Take SBS rubber, heat stabilizer, modified material and plasticizer, put it in a mixer and knead for 14min, and the kneading temperature is 163°C to obtain modified SBS rubber;

[0064] S3: Preparation of additives:

[0065] Take cerium nitrate hexahydrate and zinc nitrate hexahydrate, mix and stir for 8 minutes, then add graphene oxide and citric acid, heat...

Embodiment 3

[0074] S1: Prepare materials;

[0075] S2: Preparation of modified SBS rubber:

[0076] Take layered manganese dioxide and nitric acid, stir and react for 3.5 days, filter with water, wash with water until the pH is 6, and dry at 80°C for 8 hours to obtain material A; take tetramethylammonium hydroxide, dissolve in deionized water, stir for 20 minutes, and then add Material A was stirred for 7 days, centrifuged and washed to obtain material B;

[0077] Take material B and dioctadecyldimethylammonium chloride, stir at 55°C for 3.5h, centrifuge, wash with water, and dry in vacuum at 50°C to obtain the modified material;

[0078] Take SBS rubber, heat stabilizer, modified material and plasticizer, place it in a mixer and knead for 15 minutes, and the kneading temperature is 165°C to obtain modified SBS rubber;

[0079] S3: Preparation of additives:

[0080] Take cerium nitrate hexahydrate and zinc nitrate hexahydrate, mix and stir for 10 minutes, then add graphene oxide and ci...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses anti-aging modified asphalt and a preparation method thereof. The anti-aging modified asphalt comprises matrix asphalt, modified SBS rubber, additives and the like. The preparation method comprises the following steps: firstly, stripping layered manganese dioxide through materials such as nitric acid and tetramethylammonium hydroxide to obtain manganese dioxide nanosheets,then adding alkylammonium cations (dioctadecyl dimethyl ammonium chloride); reacting and assembling to obtain a supramolecular intercalation structure. The supramolecular intercalation structure has alarge interlayer spacing, stripping is easy to occur in the mixing process of the supramolecular intercalation structure and the SBS rubber, nanosheets are generated, and alkyl ammonium cations on the surfaces of the nanosheets can enhance the compatibility of the nanosheets and the SBS rubber, so that the nanosheets are uniformly dispersed in the matrix, and an excellent ultraviolet shielding effect is shown. Ultraviolet light is shielded and blocked through the synergistic effect of the additive and the modified SBS rubber, and the prepared modified asphalt has excellent ultraviolet shielding capacity and ageing resistance and has high practicability.

Description

technical field [0001] The invention relates to the technical field of modified asphalt, in particular to an anti-aging modified asphalt and a preparation method thereof. Background technique [0002] Modified asphalt is the addition of external additives (modifiers) such as rubber, resin, high molecular polymer, ground rubber powder or other fillers, or taking measures such as mild oxidation of asphalt to make asphalt or asphalt mixture The performance of the asphalt binder can be improved. There are two mechanisms for modifying asphalt, one is to change the chemical composition of asphalt, and the other is to make the modifier evenly distributed in the asphalt to form a certain spatial network structure. [0003] As we all know, asphalt has been widely used in road surface paving, but because the asphalt pavement is exposed to the air for a long time, it will be radiated and corroded by sunlight, climate temperature, rain and air, etc., resulting in hardening and cracking...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L95/00C08L53/02C08L5/08C08L9/06C08K13/06C08K9/02C08K9/04C08K3/04C08K3/32C08K5/12C08K7/00C08K3/22C08K3/34
CPCC08L95/00C08K2201/011C08L2201/08C08L2205/035C08K2003/2296C08K2003/2213C08L53/02C08L5/08C08L9/06C08K13/06C08K9/02C08K9/04C08K3/042C08K3/32C08K5/12C08K7/00C08K3/22C08K3/346
Inventor 郭仁圆
Owner 郭仁圆
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com