A kind of polystyrene hybrid material modified asphalt and its preparation method

A hybrid material, polystyrene technology, applied in building thermal insulation materials, building components, buildings, etc., can solve the problems of performance evaluation of modified asphalt mixture, insufficient description of road performance, lack of mixture test indicators, etc. Achieve the effect of improving high and low temperature performance, improving poor compatibility, and preventing serious aging of asphalt

Active Publication Date: 2017-10-13
SHANXI PROVINCIAL RES INST OF COMM
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, none of these studies has comprehensively evaluated the performance of modified asphalt mixtures, and lacks specific test indicators for mixtures, such as rutting dynamic stability for high-temperature performance, and low-temperature failure modulus for low-temperature performance. Not enough to explain the quality of the actual road performance

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
  • A kind of polystyrene hybrid material modified asphalt and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Polymerization of styrene monomer was initiated by n-butyllithium (1h, 45°C), co-hydrolyzed with tetraethyl orthosilicate (4.5h, 40°C), suction filtered and dried to obtain sample I; 15g of sample I was added to 80g In xylene, ultrasonically disperse at 25°C for 20min to obtain sample II; heat 500g of base asphalt (No. 90 heavy traffic asphalt) to 130°C, slowly add sample II, and shear and stir for 1h.

Embodiment 2

[0016] Polymerization of styrene monomer was initiated by n-butyllithium (1h, 50°C), co-hydrolyzed with ethyl orthosilicate (3.5h, 45°C), suction filtered and dried to obtain sample I; take 20g of sample I and add 150g In methanol, ultrasonically disperse at 25°C for 30 minutes to obtain sample II; heat 500g of base asphalt (No. 90 heavy traffic asphalt) to 110°C, slowly add sample II, and shear and stir for 1h.

Embodiment 3

[0018] Phenyllithium triggers the polymerization of styrene monomer (0.5h, 55°C), co-hydrolyzes with tetraethyl orthosilicate (4.5h, 45°C), suction filters and dries to obtain sample I; take 15g of sample I and add 90g In toluene, ultrasonically disperse at 25°C for 20 minutes to obtain sample II; heat 500g of base asphalt (No. 70 heavy traffic asphalt) to 120°C, slowly add sample II, and shear and stir for 1h.

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

No PUM Login to view more

Abstract

The invention belongs to the technical field of modified asphalt, and in particular relates to a polystyrene hybrid material modified asphalt and a preparation method thereof. The polystyrene hybrid material is a polystyrene silicon dioxide hybrid material, based on the weight of the base asphalt, and its dosage is 1-8wt%. Compared with the prior art, the present invention has the following advantages: the problem of poor compatibility between polystyrene and asphalt is improved; first, the hybrid material is ultrasonically dispersed in a solvent, and then blended with the base asphalt, and the solvent is mixed during the mixing process. Volatilization can ensure the modification effect of polystyrene hybrid materials; during the preparation of modified asphalt, the preparation temperature is low, only 100‑130 ° C, while the conventional preparation temperature of polystyrene modified asphalt is about 180 ° C, Save energy, prevent severe asphalt aging, and ensure that the modified asphalt has good performance; compared with ordinary polystyrene modified asphalt mixture, the prepared asphalt mixture has significantly improved high and low temperature performance.

Description

technical field [0001] The invention belongs to the technical field of modified asphalt, and in particular relates to a polystyrene hybrid material modified asphalt and a preparation method thereof. Background technique [0002] The construction quality of high-grade highways involves many factors, among which the quality of construction materials plays a decisive role. Traditionally used ordinary asphalt can no longer meet the construction requirements of modern high-grade highways due to poor high and low temperature performance and poor temperature sensing performance. It is currently the most common practice to modify ordinary asphalt to improve its road performance. The production of polystyrene has sufficient raw materials and large output, and can be used as an asphalt modifier, thereby expanding the application range of polystyrene and enhancing its application value. However, the compatibility of polystyrene and asphalt is not good. When the amount of polystyrene i...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L25/06C08K3/36
Inventor 庞瑾瑜郭赢赢薛君畅润田裴强杜素军
Owner SHANXI PROVINCIAL RES INST OF COMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap