A bio-based elastomer from cornstalk pith scaffold and natural rubber complexing with ferric ions: Preparation and mechanical properties

Yang, Meng; Zhang, Chenwei; Gong, Xiaoyu; Lü, Jie; Cheng, Yi; Tao, Yehan; Wang, Haisong

doi:10.1016/j.polymer.2022.124678

Cited by 5 publications

(3 citation statements)

References 31 publications

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“…A comprehensive comparison of reported biobased polyurethane foams, such as lignin-derived PU foam (LPUF), magnetic lignin-based polyurethane foam (MLPUF), cellulose nanofiber foam (CNF), biobased PU composite foam (FR), albumin/Pinus pinaster tannin foam (CPM), lignin-containing polyurethane foam (LPU), multiwalled carbon nanotube/cellulose/thermoplastic polyurethane hybrid foam (C20/TPU foam), commercial cushion foam, and carbon nanotube/waterborne polyurethane foam (WCT foam), including the stress reduction rate and cycle numbers, is shown in Figure . The SPUF composite foam exhibited an exceptionally high recovery rate of 98.6% at ε = 80% even after 150 cycles, which is outstanding among other foams, indicating that the addition of a small amount of soy-hydrolyzed protein to polyurethane foam is indeed a good strategy to improve foam performance.…”

Section: Resultsmentioning

confidence: 99%

Mechanically Robust Flexible Polyurethane Foams Formulated with Polyols Comprising Soybean Protein

Jian,

Peng,

Zhao

et al. 2023

Ind. Eng. Chem. Res.

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Section: Resultsmentioning

confidence: 99%

Mechanically Robust Flexible Polyurethane Foams Formulated with Polyols Comprising Soybean Protein

Jian,

Peng,

Zhao

et al. 2023

Ind. Eng. Chem. Res.

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“…Li et al used the hydrophilicity of CSP to prepare a low-cost, ultralightweight, water-absorbent material by high-shear mixing and freeze-drying. Using the natural structure and elasticity of CSP, Meng et al prepared a biobased composite elastomer by interpenetrating it with natural rubber so that the chelation of organic ligands with inorganic ions constructed dynamic reversible bonds. Previous researchers have investigated the use of CSP to some extent and many breakthroughs have been made in the application of other biobased materials − ; however, there have been no reports about the preparation of piezoresistive external pressure sensors based on corn stalk by using the natural three-dimensional porous structure inside CSP.…”

Section: Introductionmentioning

confidence: 99%

Upcycling of Agro-waste: Biobased Piezoresistive Sensor by Exploiting the Natural Porous Structure of Cornstalk Pith for Detecting Pressure Signals

Liu,

Wang,

Wang

et al. 2024

ACS Sustainable Chem. Eng.

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The utilization of natural biomass materials for the transformation into biobased green flexible sensors with specific electronic properties has garnered the attention of a wide range of researchers. Of these, considered as an agricultural waste, natural corn stover (NCS) has received less attention from researchers, despite its abundance, extremely low cost, and porous internal structure. This paper proposes a capillary phenomenon absorption method (CAM) to easily and low-costly modify inside corn stover pith (CSP) with aqueous natural rubber (NR) and CNT/PEDOT:PSS activation solutions (AS), which converts CSP into the biobased piezoresistive material NR40/AS@CSP. This material has a stable resistance change signal under continuously varying or constant external pressure. In addition, it has a large sensing range (5.5−500 kPa), fast response time (less than 400 ms), and strong antifatigue performance (the signal amplitude is basically the same for 300 s of fast continuous loading). With the exceptional characteristics of NR40/AS@CSP, it can be processed into CSP-based pressure sensors (CSPSs). This biobased transducer has proven their utility in practical application experiments such as pressure warning devices, Morse code, and large area sensing arrays. The CSPS obtained by modifying discarded maize stover exhibits great potential as a replacement for conventional polymer piezoresistive sensors.

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“…Therefore, CSP demonstrates significant potential for development and has garnered attention from researchers. 39,40,41 However, there have been no reports on the utilization of CSP as an advanced bio-based conductive hydrogel. Therefore, considering that CSP mainly consist of most cellulose and a minor fraction of hemicellulose and lignin, in this paper, a CSP-based conductive hydrogel was successfully developed by using the proportion of its natural components (about 70% cellulose, 20% hemicellulose, and 10% lignin).…”

Section: Introductionmentioning

confidence: 99%

Electronic Upcycling of Corn Straw: Biobased Elastic Conductive Cross-linked Network Eco-friendly Hydrogels with multifunction for Flexible Wearable Sensors

Wang,

Liu,

Wang

et al. 2024

Preprint

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The conductive hydrogels based on biomaterials have garnered much attention. However, the utilization of corn straw, an agricultural waste, as a gel substrate can achieve the recycling of agro-waste and the development of advanced electronic materials, which has a dual benefit strategy seems to be overlooked. In this study, a corn straw pith (CSP) based multifunctional conductive hydrogel (CSP-MCG) was prepared by introducing CSP, which presents oxygen-rich groups, into the three-dimensional crosslinking network system of the hydrogel. The CSP-MCG has mechanical elasticity (maximum tensile rate of 340%) and responsiveness to external environmental factors (mechanical strain, temperature, humidity): Under different tensile strain conditions, the fatigue response is stable and the sensitivity is high (GF=2.8, R2=0.996, Tres=0.075s);In temperature range 20℃-50℃, it exhibits great performance (R2=0.993, TCR=1.34%/℃, Tres=0.5s); Within the humidity range RH29%-79%, the signal changes steadily and the response time is short (Tres=0.2s). In addition, CSP-MCG not only exhibits responsiveness to various external stimuli, but also demonstrates the ability to differentiate between these stimuli based on variation trend in its resistance and capacitance. Due to its exceptional multi-functional sensing capabilities and environmental attribute (recyclability and degradability), CSP-MCG can be as green flexible electronic material in practical applications such as electronic skin, human-computer interaction and flexible wearable sensors.

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A bio-based elastomer from cornstalk pith scaffold and natural rubber complexing with ferric ions: Preparation and mechanical properties

Cited by 5 publications

References 31 publications

Mechanically Robust Flexible Polyurethane Foams Formulated with Polyols Comprising Soybean Protein

Mechanically Robust Flexible Polyurethane Foams Formulated with Polyols Comprising Soybean Protein

Upcycling of Agro-waste: Biobased Piezoresistive Sensor by Exploiting the Natural Porous Structure of Cornstalk Pith for Detecting Pressure Signals

Electronic Upcycling of Corn Straw: Biobased Elastic Conductive Cross-linked Network Eco-friendly Hydrogels with multifunction for Flexible Wearable Sensors

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