A5021181020- Asphalt Pavement Performance Evaluation
- Infrastructure Maintenance and Monitoring
- Polymer composites and self-healing
- Advanced Polymer Synthesis and Characterization
- biodegradable polymer synthesis and properties
- Polymer Nanocomposites and Properties
- Smart Materials for Construction
- Polymer crystallization and properties
- Synthesis and properties of polymers
- Conducting polymers and applications
- Petroleum Processing and Analysis
- Dendrimers and Hyperbranched Polymers
- Innovative Microfluidic and Catalytic Techniques Innovation
- Natural Fiber Reinforced Composites
- Transport Systems and Technology
- Concrete and Cement Materials Research
- Innovative concrete reinforcement materials
- Block Copolymer Self-Assembly
- Enhanced Oil Recovery Techniques
- Material Properties and Failure Mechanisms
- Concrete Corrosion and Durability
- Tribology and Wear Analysis
- Pharmaceutical studies and practices
- Chemistry and Chemical Engineering
Iowa State University
2016-2024
Bissell (United States)
2019-2024
This paper explores the feasibility of using SBS/sulfur/soybean-additive in combination a hard asphalt binder to produce composite modified binder. The modification effects additives and influence different blending protocols were comprehensively studied through laboratory investigations. rheology binders was evaluated via viscosity, bitumen grading, master curve, Black diagram, isochronal plot, Han fatigue, creep stiffness m-value bending beam rheometer (BBR), Multiple Stress Recovery...
Glycerol–acrylic RAFT-produced thermoplastics with excellent mechanical properties and tack were used to make environmentally friendly wood adhesives.
Here we report dynamic and thermodynamic aspects of the self-assembly in a series branched-chain soybean-oil-derived styrenic block copolymers produced via reversible addition–fragmentation chain transfer (RAFT) polymerization. These biobased materials display unusual domain expansion which has not been seen conventional petroleum-based copolymers. The architecture poly(styrene-b-acrylated epoxidized soybean oil) (PS–PAESO) varies from star-like to star-brush-like owing bulk...
This work introduces a novel 1-pot, 0-waste, 0-VOC methodology for synthesizing polymeric surfactants using acrylated epoxidized soybean oil and glycerol as primary monomers. These macromolecular are synthesized via reversible addition–fragmentation chain transfer (RAFT) polymerization, allowing tunable hydrophilic–lipophilic balance (HLB) ionic properties. We characterize the copolymers' chemical composition surface–active properties, evaluate their effectiveness in forming stabilizing...
ABSTRACT Over the past decade, development of various monomers and polymeric materials from renewable natural resources has received increasing attention. Soybean oil, as one most abundant vegetable oils, been widely used in recent studies. To enhance reactivity pure soybean it can undergo through different processes such acrylation epoxidation. In this article, we investigated viability polymerized acrylated epoxidized oil (PAESO) composition pressure sensitive adhesives (PSAs). We studied...
A laboratory study was conducted to develop a thin-lift overlay (Thinlay) mix design containing polymer-modified PG58-34E+ binder with 3.5% add the mix, and 40% fine reclaimed asphalt pavement (RAP) that would meet criteria for State of Iowa using bioderived rejuvenator called sub-epoxidized soybean oil (SESO). Two groups specimens were created this investigation: (1) control no SESO, (2) rejuvenated group 0.28% SESO by total weight (4.88% content-RAP + PG58-34E+), where evaluated multiple...
Historically, the use of “green” materials around world has been limited due to their higher production costs when compared petrochemical derived materials. However, recent volatility and increasing price petroleum derivatives, there is a growing demand for environmentally friendly One most commonly used bitumen modification are poly(styrene-block-butadiene-block-styrene) (SBS) type polymers. Recently, Iowa State University Chemical Engineering Department was able synthetize thermoplastic...
Here, we spearhead a new approach to biopolymer impact modification that demonstrates superior performance while maintaining greater than 99% compostability. Using soybean-based monomers, virtually untapped resource in terms of commercial volume and overall cost, series hyperbranched block copolymers were synthesized melt-processed with poly(l-lactide) (PLA) yield resistant all-polymer composites. Although PLA has been treated extensively, date, the only practical solutions have relied on...
Cracked and deteriorated asphalt are common problems on our roads, leading to safety concerns requiring significant resources for rehabilitation reconstruction. This study investigates bio-fog seals, a promising eco-friendly solution utilizing bio-based rejuvenators. These treatments penetrate aged asphalt, restoring its flexibility resistance cracking. We assessed the effectiveness of two seal formulations—one containing sub-epoxidized soybean oil (SESO) other combining SESO with biopolymer...
In this study, asphalt mixtures were engineered with bio-renewable soybean oil-derived modifiers, and then used for pavement demonstration projects in the U.S. states of Iowa Minnesota summer 2019. The performance grade, elastic recovery (R), non-recoverable creep compliance (J nr ) binders evaluated. modification binder project almost maintained high low temperature grades, presence modifier mixture resulted a slight decrease grade while maintaining grade. J R values proved increase...
In this study, an asphalt binder was modified with epoxidized methyl soyate (EMS) that engineered at Iowa State University. The modification accomplished in terminal, and the resulting used for reversing undesired effects of reclaimed pavement (RAP) a mixture containing 30% material. produced plant demonstration project occurred November 2017. EMS-modified RAP control only 18% were paving 7-mile stretch high-volume roadway O'Brien County, Iowa, U.S. About 6.6 miles paved low is traditionally...
Abstract Through recent work at Iowa State University, great potential was seen from epoxidized plant oil materials, benzyl soyate (EBS), and methyl (EMS) as fluxes/rejuvenators. This found that improvement in low-temperature performance greater than high-temperature for solvent de-asphalting (SDA) residuum super critical extraction (ROSE) unit bottoms when using either EBS or EMS compared to results modified vacuum distillation tower with EMS. Based on these results, analytical chemistry...