Additive Effects of Aromatic Oil and Styrene–Butadiene–Styrene Triblock Copolymer Upon Feedstock Recycling of Degraded Polymer Modified Asphalt

2018 ◽  
Vol 10 (12) ◽  
pp. 3579-3586
Author(s):  
Motoyuki Sugano ◽  
Jun Kajita ◽  
Toshimasa Arai ◽  
Yusuke Kakuta
Keyword(s):  
Triblock Copolymer ◽  
Additive Effects ◽  
Modified Asphalt ◽  
Feedstock Recycling ◽  
Styrene Butadiene Styrene ◽  
Polymer Modified Asphalt ◽  
Styrene Butadiene ◽  
Degraded Polymer ◽  
Butadiene Styrene

Compatibility and Storage Stability of Asphalt Binder Modified by Styrene-Butadiene-Styrene (SBS) Graft Copolymer

2021 ◽  
Vol 1036 ◽  
pp. 459-470
Author(s):  
Hong Gang Zhang ◽  
Qiang Huai Zhang ◽  
Xue Ting Wang ◽  
Hua Tan ◽  
Li Ning Gao ◽  
...  
Keyword(s):  
Triblock Copolymer ◽  
Storage Stability ◽  
Asphalt Binder ◽  
Solubility Parameters ◽  
Suitable Alternative ◽  
Modified Asphalt ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Sbs Modified Asphalt ◽  
Butadiene Styrene

A styrene-butadiene-styrene triblock copolymer (SBS) was grafted with an unsaturated polar monomer (monomer A) composed of maleic anhydride (MAH) and methoxy polyethylene (MPEG) via a ring-opening reaction after epoxidizing styrene-butadiene-styrene triblock copolymer (ESBS). The microscopic changes of SBS before and after grafting has been characterized with Fourier transform infrared spectrum (FT-IR), X-ray photoelectron spectroscopy (XPS) and gel permeation chromatography (GPC). The results revealed that the monomer A was successfully grafted on SBS backbone, and the maximum graft ratio (GR) was 20.32%. To verify the compatibility between SBS and asphalt, solubility parameters and surface free energy (SFE) of SBS, grafted SBS and asphalt were measured. It was found that the solubility parameter and SFE of grafted SBS were closer to asphalt compared with SBS. It also has been confirmed from storage stability that the temperature susceptibility of grafted SBS modified asphalt was reduced in compare with SBS modified asphalt binder. As consequence, the use of grafted copolymer can be considered a suitable alternative for modification of asphalt binder in pavement.

Enhanced Performance of LDPE/SBS Blend Modified Asphalt through Dynamic Vulcanization

2002 ◽  
Vol 10 (6) ◽  
pp. 433-440 ◽  
Author(s):  
Guangtao Gao ◽  
Yong Zhang ◽  
Yinxi Zhang ◽  
Kang Sun
Keyword(s):  
Triblock Copolymer ◽  
Storage Stability ◽  
Dynamic Shear ◽  
Dynamic Vulcanization ◽  
Rotational Viscometer ◽  
Modified Asphalt ◽  
Before And After ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Butadiene Styrene

A blend of a Low-Density Polyethylene (LDPE) and a Styrene-Butadiene-Styrene triblock copolymer (SBS) was mixed with an asphalt, and a storage-stable modified asphalt was prepared by dynamic vulcanization. The vulcanization characteristics of this LDPE/SBS blend-modified asphalt were studied using a strain-controlled rheometer. The vulcanization of the SBS in the blend-modified asphalt resulted in a marked increase in the torque. In addition, the physical properties of the LDPE/SBS blend-modified asphalt containing even a small quantity of sulfur were improved compared to the modified asphalt without sulfur. The storage stability of the LDPE/SBS blend-modified asphalt was also improved by the addition of sulfur. The rheological properties of the LDPE/SBS blend-modified asphalt before and after adding sulfur were characterized using a dynamic shear rheometer and a rotational viscometer.

Preparation and properties of nano‐CaCO 3 /waste polyethylene/styrene‐butadiene‐styrene block polymer‐modified asphalt

2019 ◽  
Vol 41 (2) ◽  
pp. 614-623 ◽  
Author(s):  
Youliang Cheng ◽  
Hanzhi Han ◽  
Changqing Fang ◽  
Huan Li ◽  
Zhigang Huang ◽  
...  
Keyword(s):  
Block Polymer ◽  
Modified Asphalt ◽  
Waste Polyethylene ◽  
Styrene Butadiene Styrene ◽  
Polymer Modified Asphalt ◽  
Styrene Butadiene ◽  
Butadiene Styrene

scholarly journals Evaluation of Properties and Micro-Characteristics of Waste Polyurethane/Styrene-Butadiene-Styrene Composite Modified Asphalt

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2249
Author(s):  
Bei Chen ◽  
Fuqiang Dong ◽  
Xin Yu ◽  
Changjiang Zheng
Keyword(s):  
Low Temperature ◽  
Performance Test ◽  
Permanent Deformation ◽  
Modified Asphalt ◽  
Basic Performance ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Sbs Modified Asphalt ◽  
And Storage ◽  
Butadiene Styrene

In order to solve the problems caused by asphalt diseases and prolong the life cycle of asphalt pavement, many studies on the properties of modified asphalt have been conducted, especially polyurethane (PU) modified asphalt. This study is to replace part of the styrene-butadiene-styrene (SBS) modifier with waste polyurethane (WP), for preparing WP/SBS composite modified asphalt, as well as exploring its properties and microstructure. On this basis, this paper studied the basic performance of WP/SBS composite modified asphalt with a conventional performance test, to analyze the high- and low-temperature rheological properties, permanent deformation resistance and storage stability of WP/SBS composite modified asphalt by dynamic shear rheometer (DSR) and bending beam rheometer (BBR) tests. The microstructure of WP/SBS composite modified asphalt was also observed by fluorescence microscope (FM) and Fourier transform infrared spectroscopy (FTIR), as well as the reaction between WP and asphalt. According to the results of this study, WP can replace SBS as a modifier to prepare WP/SBS composite modified asphalt with good low-temperature resistance, whose high-temperature performance will be lower than that of SBS modified asphalt. After comprehensive consideration, 4% SBS content and 15% WPU content (4 S/15 W) are determined as the suitable types of WPU/SBS composite modified asphalt.

Rheology of Styrene‐Butadiene‐Styrene Triblock Copolymer in n‐Tetradecane Systems

1984 ◽  
Vol 28 (4) ◽  
pp. 393-409 ◽  
Author(s):  
Hiroshi Watanabe ◽  
Souichiro Kuwahara ◽  
Tadao Kotaka
Keyword(s):  
Triblock Copolymer ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Butadiene Styrene
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