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

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.

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Improving the aging resistance of styrene-butadiene-styrene tri-block copolymer and application in polymer-modified asphalt

Journal of Applied Polymer Science ◽

10.1002/app.31458 ◽

2009 ◽

pp. n/a-n/a ◽

Cited By ~ 7

Author(s):

Yintao Li ◽

Linfan Li ◽

Yan Zhang ◽

Sufang Zhao ◽

Leidong Xie ◽

...

Keyword(s):

Block Copolymer ◽

Modified Asphalt ◽

Aging Resistance ◽

Styrene Butadiene Styrene ◽

Polymer Modified Asphalt ◽

Styrene Butadiene ◽

Butadiene Styrene

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

Polymers and Polymer Composites ◽

10.1177/096739110201000603 ◽

2002 ◽

Vol 10 (6) ◽

pp. 433-440 ◽

Cited By ~ 1

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.

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Controllable synthesis of SiC wrapped LDHs to reinforce microwave absorption and exothermic properties of styrene-butadiene-styrene (SBS) polymer modified asphalt

Materials Research Express ◽

10.1088/2053-1591/abe975 ◽

2021 ◽

Vol 8 (3) ◽

pp. 035501

Author(s):

Chao Li ◽

Guodong Zeng ◽

Min Zhou ◽

Yang Fang ◽

Zongwu Chen ◽

...

Keyword(s):

Microwave Absorption ◽

Controllable Synthesis ◽

Modified Asphalt ◽

Styrene Butadiene Styrene ◽

Polymer Modified Asphalt ◽

Styrene Butadiene ◽

Butadiene Styrene

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

Polymer Composites ◽

10.1002/pc.25392 ◽

2019 ◽

Vol 41 (2) ◽

pp. 614-623 ◽

Cited By ~ 1

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

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

Polymers ◽

10.3390/polym13142249 ◽

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.

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