scholarly journals Efecto de la adición de materiales compuestos de estireno-butadieno/plumas de pollo en la modificación de asfaltos

2019 ◽  
pp. 1-6
Author(s):  
Claudia Esmeralda Ramos-Galván ◽  
José Luis Rivera-Armenta ◽  
Beatriz Adriana Salazar Cruz ◽  
Francisco Javier Escobar Medina
Keyword(s):  
Phase Separation ◽  
Composite Materials ◽  
Fluorescent Microscopy ◽  
Road Construction ◽  
Climatic Conditions ◽  
Shearing Deformation ◽  
Low Costs ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Butadiene Styrene

Asphalt is an important material for road construction and other applications. That is why it is done the search for materials that in combination with the asphalt generate a product of better quality, lower environmental impacts and low costs, thus allowing to be reflected greater resistance of the asphalt to the extreme climatic conditions and traffic. To cover these different needs, asphalts with a better performance must be counted, having to modify their chemical, physical and rheological properties, in order to improve their behavior to the shearing, deformation, fatigue, ageing, elasticity, etc. In this work, studied the effect of adding composite materials with polymer of the type SBS lineal (Styrene-butadiene-styrene) and the feather of chicken, taking concentrations of 1, 3 and 5 PHR (parts per hundred of rubber) in ratios of 2, 4 and 6% in relation to the weight of asphalt. Techniques were applied to characterize such as dynamic viscosity, softening point, phase separation characterization, penetration index and fluorescent microscopy. As a result, using a polymer of the linear SBS type incorporating keratin from the chicken plume as reinforcement for the asphalt does not present interesting results for application areas such as where high fluidity is required.

scholarly journals Properties of composite materials absorbing electromagnetic waves on the styrene-butadiene-styrene copolymer matrix with EMCCO-201 filler

Polimery ◽  
2020 ◽  
Vol 65 (07/08) ◽  
pp. 542-549
Author(s):  
ANDRZEJ VOGT ◽  
JACEK W. KACZMAR ◽  
PAULINA MAYER ◽  
ALEKSANDRA BRZOSTEK ◽  
LESZEK NOWOSIELSKI ◽  
...  
Keyword(s):  
Composite Materials ◽  
Electromagnetic Waves ◽  
Styrene Copolymer ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Butadiene Styrene

scholarly journals Evaluation of rheological performance of a local modified bitumen by Styrene Butadiene Styrene polymer used in wearing course

2021 ◽  
Vol 15 (58) ◽  
pp. 65-76
Author(s):  
Kebaili Kebaili ◽  
Mohammed Boucherba ◽  
Mohamed Djouhri ◽  
Mustapha Kebaili
Keyword(s):  
Mechanical Performance ◽  
Road Construction ◽  
Modified Bitumen ◽  
Modification System ◽  
Styrene Butadiene Styrene ◽  
Bituminous Pavements ◽  
Styrene Butadiene ◽  
Objective Being ◽  
Bitumen Modification ◽  
Butadiene Styrene

In road construction, bitumen is the binder that gathered the different aggregates of road pavements. Bitumen, as a viscoelastic material, influences considerably the rheological behavior of bitumen concrete. The bitumen used in Algeria, showed its limits face to the traffic, which is increasing continuously. This research aims to valorize SBS polymer in wearing course by modifying a pure 35/50 bitumen. The present paper aims to study the polymer derived from styrene and butadiene (SBS) from the company Kraton Polymers International Ltd in the modification of a bitumen to improve its mechanical characteristics.To this end, the incorporation of SBS polymer was carried out according to two contents: 5.0 and 7.5% (by weight of asphalt), the objective being to evaluate the influence of this type of polymer on the rheological properties of the bitumen ordinary road including viscosity and modulus.The results reveal that the bitumen modified with 7.5% of SBS has better mechanical performance on the rigidity and the elasticity compared to the conventional bitumen. Recommendations have been made to implement a bitumen modification system to improve its quality and therefore the durability of bituminous pavements in the south of Algeria.

TUNING PROPERTIES AND MORPHOLOGY IN HIGH VINYL CONTENT SBS BLOCK COPOLYMER, A THERMOPLASTIC ELASTOMER VIA THIOL-ENE MODIFICATION

2017 ◽  
Vol 90 (3) ◽  
pp. 550-561 ◽  
Author(s):  
Prithwiraj Mandal ◽  
Siva Ponnupandian ◽  
Soumyadip Choudhury ◽  
Nikhil K. Singha
Keyword(s):  
Block Copolymer ◽  
Thermoplastic Elastomer ◽  
Atomic Force Microscopy Analysis ◽  
Ene Reaction ◽  
Force Microscopy ◽  
Atomic Force ◽  
Microscopy Analysis ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Butadiene Styrene

ABSTRACT Thiol-ene modification of high vinyl content thermoplastic elastomeric styrene butadiene styrene (SBS) block copolymer (BCP) was carried out using different thiolating agents in toluene at 70 °C. 1H NMR analysis confirmed the participation of vinyl double bond in the thiol-ene modification reaction of SBS. Surface morphology of the block copolymers evaluated by atomic force microscopy analysis showed higher roughness after the thiol-ene reaction. The thiol-modified SBS block copolymer showed better adhesion strength and oil resistance properties than the pristine SBS.

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.

Thermo‐responsive shape memory properties based on polylactic acid and styrene‐butadiene‐styrene block copolymer

2021 ◽  
pp. 51000
Author(s):  
Fathin Hani Azizul Rahim ◽  
Abdul Aziz Saleh ◽  
Raa Khimi Shuib ◽  
Ku Marsilla Ku Ishak ◽  
Zuratul Ain Abdul Hamid ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Shape Memory ◽  
Polylactic Acid ◽  
Shape Memory Properties ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Butadiene Styrene

Block Copolymer Concentration Gradient and Solvent Effects on Nanostructuring of Thin Epoxy Coatings Modified with Epoxidized Styrene–Butadiene–Styrene Block Copolymers

2012 ◽  
Vol 45 (3) ◽  
pp. 1483-1491 ◽  
Author(s):  
José Angel Ramos ◽  
Leandro H. Espósito ◽  
Raquel Fernández ◽  
Iñaki Zalakain ◽  
Silvia Goyanes ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Solvent Effects ◽  
Concentration Gradient ◽  
Epoxy Coatings ◽  
Copolymer Concentration ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Butadiene Styrene

A study on dynamic rheological characterisation of electron beam crosslinked high vinyl styrene butadiene styrene block copolymer

2010 ◽  
Vol 66 (5) ◽  
pp. 637-647 ◽  
Author(s):  
Sanjoy Datta ◽  
Kinsuk Naskar ◽  
Y. K. Bhardwaj ◽  
Sunil Sabharwal
Keyword(s):  
Electron Beam ◽  
Block Copolymer ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Butadiene Styrene

Toughening of Polypropylene-Ethylene Copolymer with Nanosized CaCO3 and Styrene-Butadiene-Styrene

2007 ◽  
Vol 121-123 ◽  
pp. 1451-1454
Author(s):  
Jian Feng Chen ◽  
Guo Quan Wang ◽  
Xiao Fei Zeng ◽  
Hong Ying Zhao
Keyword(s):  
Average Particle Size ◽  
Average Particle ◽  
Single Screw Extruder ◽  
Roll Mill ◽  
The Matrix ◽  
Ethylene Copolymer ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
The Impact ◽  
Butadiene Styrene

Nanocomposites of nanosized-CaCO3/polypropylene-ethylene copolymer (PPE) and nanosized CaCO3/ PPE/ styrene-butadiene-styrene (SBS) were prepared by using two-roll mill and single screw extruder. The average particle size of nanosized CaCO3 was determined to be about 30 nm. By adding nanosized CaCO3 into PPE matrix, the toughness of the matrix improves significantly. At nanosized CaCO3 content of 12 phr (parts per hundred PPE resin by weight), the impact strength of CaCO3/PPE at room temperature reaches 61.6 KJ/m2, which is 3.02 times that of unfilled PPE matrix. In addition, the synergistic toughening effect of nanosized CaCO3 and SBS particles on PPE matrix was investigated.

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