Home / Advanced Search

  • Title/Keywords

  • Author/Affliations

  • Journal

  • Article Type

  • Start Year

  • End Year

Update SearchingClear
  • Articles
  • Online
Search Results (21,887)
  • Open Access

    ARTICLE

    Utilization of Bitter Orange Seed as a Novel Pectin Source: Compositional and Rheological Characterization

    Diako Khodaei1, Mohammad Nejatian2,*, Hassan Ahmadi Gavlighi2, Farhad Garavand3,*, Ilaria Cacciotti4

    Journal of Renewable Materials, Vol.10, No.11, pp. 2805-2817, 2022, DOI:10.32604/jrm.2022.021752

    Abstract The seeds from bitter orange, the by-product of juice making units, hold the potential to facilitate novel, easy yet high-quality pectin extraction. To test this hypothesis, orange seed pectin (OSP) was extracted by distilled water and its compositional parameters and rheological behavior were then evaluated. Results showed that galacturonic acid was the major component of OSP (∼425 mg/g) confirming the purity of the extracted pectin, followed by glucose and some minor neutral sugars. The Mw (weight-average molar mass), Rn (number average molar mass), and Rz (z-average molar mass) values for the OSP were 4511.8 kDa, 61 nm, and 61.1 nm,… More > Graphic Abstract

    Utilization of Bitter Orange Seed as a Novel Pectin Source: Compositional and Rheological Characterization

  • Open Access

    ARTICLE

    Acoustics Performance Research and Analysis of Light Timber Construction Wall Elements Based on Helmholtz Metasurface

    Si Chen1, Yuhao Zhou1, Sarah Mohrmann2, Haiyan Fu1, Yuying Zou1, Zheng Wang1,*

    Journal of Renewable Materials, Vol.10, No.11, pp. 2791-2803, 2022, DOI:10.32604/jrm.2022.021531

    Abstract Based on the efficient sound absorption characteristics of Helmholtz resonance structures in the range of medium and low frequency acoustic waves, this paper investigates an effective solution for light timber construction walls with acoustic problems. This study takes the light timber construction wall structure as the research object. Based on the Helmholtz resonance principle, the structure design of the wall unit, impedance tube experiment and COMSOL MULTIPHYSICS simulation calculation were carried out to obtain the change rule of acoustic performance of the Helmholtz resonance wall unit structure. The research results show that the overall stability of sound insulation of the… More > Graphic Abstract

    Acoustics Performance Research and Analysis of Light Timber Construction Wall Elements Based on Helmholtz Metasurface

  • Open Access

    ARTICLE

    Bio-Inspired Gelatin-Based Adhesive Modified with Waterborne Polyurethane on Click Chemistry

    Xuechuan Wang1,2, Wenying Zhao1,2, Xugang Dang1,2,*, Yiqing Wang1,2, Huijie Zhang1,2,*

    Journal of Renewable Materials, Vol.10, No.11, pp. 2747-2763, 2022, DOI:10.32604/jrm.2022.021555

    Abstract As a non-toxic, highly reactive biomass material, gelatin is wildly used as the component of biomass-based adhesive. However, like most aqueous adhesives, gelatin-based adhesives suffer from long solidifying time or high solidifying temperature due to the low volatility of water, which highly limits the application potential of gelatinbased adhesives. Inspired by the fast adhesion of marine organisms through the formation of chemical crosslinks, herein, a kind of low temperature curable eco-friendly gelatin-based adhesive with good adhesive properties and fast curing at low temperature is developed by introducing clicking chemical Diels-Alder (DA) reaction between blocked waterborne polyurethane (MWPU) and gelatin. The… More > Graphic Abstract

    Bio-Inspired Gelatin-Based Adhesive Modified with Waterborne Polyurethane on Click Chemistry

  • Open Access

    ARTICLE

    Simulation Research on Performance of a Novel Heating and Cooling System with Thermoelectric Module

    Mingxin Li, Benzhi Hou, Yihua Zheng*

    Journal of Renewable Materials, Vol.10, No.11, pp. 3079-3091, 2022, DOI:10.32604/jrm.2022.020167

    Abstract This work proposes a novel heating and cooling system, with incorporated thermoelectric module, that can achieve energy balance using a self-water supply heat exchange subsystem. The thermoelectric effect is used to achieve controlled and adjustable heating of the circulating water. Simulations were conducted to study the thermal performance of the system while it simultaneously produces hot and cold water, with different working conditions for the hot-and cold-side water outlets. The results show that the water temperature at the hot side outlet increases from 32°C to 75°C when the power increases from 4.5 to 50 W. Additionally, the use of thermoelectric… More >

  • Open Access

    ARTICLE

    Study on the Durability of Recycled Powder Concrete against Sulfate Attack under Partial Immersion Condition

    Hualei Bai1,2, Ying Li1,2,*, Dahu Dai1,2

    Journal of Renewable Materials, Vol.10, No.11, pp. 3059-3078, 2022, DOI:10.32604/jrm.2022.020148

    Abstract In order to make full use of waste recycled fine powder (RFP) in concrete and achieve the goal of carbon neutrality in the concrete industry, the durability of sulfate resistance is an important aspect of evaluating the performance of recycled powder concrete (RPC). Therefore, the durability of RPC under partial sulfate immersion was studied to provide theoretical guidance for understanding the erosion mechanism of RPC. The compressive strength, mass loss, and microstructure change patterns of RPC under partial immersion of 5% Na2SO4 and MgSO4 solutions were analyzed by cubic compressive strength, mass loss rate, SEM-EDS, and XRD. The results showed… More >

  • Open Access

    ARTICLE

    Fabrication of Baking-Free Bricks Using Gold Tailings and Cemented Materials with Low Alkalinity

    Jiamao Li1,2,*, Tao Si1, Lin Li1, Chuangang Fan1,*, Zhaofang He3, Yuandi Qian3

    Journal of Renewable Materials, Vol.10, No.11, pp. 3041-3058, 2022, DOI:10.32604/jrm.2022.020054

    Abstract The purpose of this paper was using gold mine tailings and cemented materials with low alkalinity to fabricate baking-free bricks. The obtained baking-free brick samples were evaluated by unconfined compressive strength (UCS), water absorption percentage, freezing-thawing cycle, and drying-wetting cycle. The microstructures of the baking-free brick samples were analyzed using X-ray diffraction (XRD) and scanning electron microscope (SEM) techniques. The baking-free brick specimens cured for 28 days with the addition of 10% mixing water consumption and 1:6 cement/tailing ratio tended to obtain favorable comprehensive properties such as a high compressive strength of 15.15 MPa, a low water absorption percentage of… More > Graphic Abstract

    Fabrication of Baking-Free Bricks Using Gold Tailings and Cemented Materials with Low Alkalinity

  • Open Access

    ARTICLE

    Utilization of Dredged River Sediment in Preparing Autoclaved Aerated Concrete Blocks

    Kai Zhang1,2, Qunshan Wei1,2,*, Shuai Jiang3, Zhemin Shen4, Yanxia Zhang1,2, Rui Tang1,2, Aiwu Yang1,2, Christopher W. K. Chow5

    Journal of Renewable Materials, Vol.10, No.11, pp. 2989-3008, 2022, DOI:10.32604/jrm.2022.019821

    Abstract In this study, the dredged river sediment, soft texture and fine particles, is mixed with other materials and transformed into eco-friendly autoclaved aerated concrete (hereinafter referred to as AAC) blocks. The results indicated the bricks produced under the conditions of 30%–34% dredged river sediment, 24% cement, 10% quick lime, 30% fly ash, 2% gypsum and 0.09% aluminum powder with 0.5 water to material ratio, 2.2 MPa autoclave pressure and 6 h autoclave time, the average compressive strength of 4.5 MPa and average dry density of 716.56 kg/m³ were obtained, the two parameters (strength & density) both met the requirement of… More >

  • Open Access

    ARTICLE

    Biocomposites of Polylactic Acid Reinforced by DL-Lactic Acid-Grafted Microfibrillated Cellulose

    Chaodong Liu, Yutong Yang, Boyu Cui, Weihong Wang*

    Journal of Renewable Materials, Vol.10, No.11, pp. 2961-2972, 2022, DOI:10.32604/jrm.2022.019761

    Abstract Microfibrillated cellulose (MFC) is often added to polylactic acid (PLA) matrixes as a reinforcing filler to obtain fully-biodegradable composites with improved mechanical properties. However, the incompatibility between MFC and the PLA matrix limits the mechanical performance of MFC-reinforced PLA composites. In this paper, DL-lactic acid-grafted-MFC (MFC-g-DL) was used to improve the compatibility with PLA. Reinforced composites were prepared by melt extrusion and hot-cold pressing. The tensile strength of the PLA/MFC-g-DL composite increased by 22.1% compared with that of PLA after adding 1% MFC-g-DL. Scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and dynamic thermomechanical analysis (DMA) were used to explore… More > Graphic Abstract

    Biocomposites of Polylactic Acid Reinforced by DL-Lactic Acid-Grafted Microfibrillated Cellulose

  • Open Access

    ARTICLE

    Environmental Protection and Energy Color Changing Clothing Design under the Background of Sustainable Development

    Jingyu Dai1,*, Hongyu Dai2, Yutong Xie3, T. Indumathi4

    Journal of Renewable Materials, Vol.10, No.11, pp. 2717-2728, 2022, DOI:10.32604/jrm.2022.019735

    Abstract In order to promote the application of clean energy technology in clothing and promote the integration of industrial development and artificial intelligence wearable technology, this study elaborates the energy application characteristics of intelligent wearable products at home and abroad and its application in different fields, aiming at the current research status of wearable technology in the field of textile and clothing. The wearable distributed generation technology is classified, and a creative clothing design for detecting climate temperature is designed. Based on the monitoring of body temperature, the changes in clothing pattern color can reflect people’s health and emotional status. At… More >

  • Open Access

    ARTICLE

    Study on the Properties of Esterified Corn Starch/Polylactide Biodegradable Blends

    Yongjie Zheng1,2,3,*, Mingjian Xu1, Jingzhi Tian1, Meihong Yu1, Bin Tan4, Hong Zhao2,3,*, Yin Tang2,3

    Journal of Renewable Materials, Vol.10, No.11, pp. 2949-2959, 2022, DOI:10.32604/jrm.2022.019702

    Abstract Fully bio-based and biodegradable starch/polylactic acid blends have received increasing attentions for their biodegradability and potential to offset the use of unsustainable fossil resources, specifically, their application in packaging. Herein, corn starch was first esterified with maleic anhydride and then compounded with polylactide (PLA) to prepare esterified corn starch/polylactic acid blends with starch content up to 35 wt%. The structures, morphologies, thermal and mechanical properties of starch or blends were investigated. The results showed that corn starch was successfully grafted with maleic anhydride, which showed increased crystallinity and particle size than native starch. Esterified corn starch/polylactic acid blends showed good… More >

Displaying 6801-6810 on page 681 of 21887. Per Page