Home / Journals / JRM / Vol.8, No.12, 2020
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  • Open AccessOpen Access

    REVIEW

    Antimicrobial Materials: New Strategies to Tackle Various Pandemics

    Samarjeet Singh Siwal1,2, Qibo Zhang1,3,*, Adesh Kumar Saini4, Vijay Kumar Thakur5,6,*
    Journal of Renewable Materials, Vol.8, No.12, pp. 1543-1563, 2020, DOI:10.32604/jrm.2020.014597
    Abstract Coronaviruses are responsible for a developing budgetary, human and fatality trouble, as the causative factor of infections, for example, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It has been well recognized that SARS-CoV-2 may survive under severe atmosphere circumstances. Hence, efficient containment approaches, for example, sanitizing, are crucial. Commonly, living compounds contribute a substance of chemical heterogeneity, with antiviral movement, and therefore can have efficacy as therapeutic tools toward coronavirus diseases. Here, in this review article, we have described the antimicrobialbased materials, which can be used to inhibit the spreading of the COVID-19. We have categorized these materials in three… More >

  • Open AccessOpen Access

    REVIEW

    Recent Advances in the Preparation, Characterization and Applications of Locust Bean Gum-Based Films

    Limin Yuan1, Yuejie Wu2, Yan Qin2, Huimin Yong2, Jun Liu2,*
    Journal of Renewable Materials, Vol.8, No.12, pp. 1565-1579, 2020, DOI:10.32604/jrm.2020.014562
    (This article belongs to this Special Issue: Food Packaging Materials Based on Renewable Resources)
    Abstract Locust bean gum (LBG) is a typical galactomannan isolated from carob bean (Ceratonia siliqua L.) cultivated in the Mediterranean area. Due to its superior biodegradable, rheological and film-forming properties, LBG has been used alone or combined with other biopolymers (e.g., polysaccharides, proteins and lipids) to develop films. Till now, different kinds of functional ingredients (e.g., montmorillonite, bacteriocins, antibiotics, plant extract, essential oils and microbial cells) have been added into LBG-based films. Notably, the physical and functional properties of LBG-based films are affected by many factors, such as the structure of LBG, the type and content of other biopolymers and functional… More >

  • Open AccessOpen Access

    REVIEW

    Utilization of Nanomaterials as Anode Modifiers for Improving Microbial Fuel Cells Performance

    Nishit Savla1, Raksha Anand2, Soumya Pandit2,*, Ram Prasad3,*
    Journal of Renewable Materials, Vol.8, No.12, pp. 1581-1605, 2020, DOI:10.32604/jrm.2020.011803
    Abstract Microbial fuel cells (MFCs) are an attractive innovation at the nexus of energy and water security for the future. MFC utilizes electrochemically active microorganisms to oxidize biodegradable substrates and generate bioelectricity in a single step. The material of the anode plays a vital role in increasing the MFC’s power output. The anode in MFC can be upgraded using nanomaterials providing benefits of exceptional physicochemical properties. The nanomaterials in anode gives a high surface area, improved electron transfer promotes electroactive biofilm. Enhanced power output in terms of Direct current (DC) can be obtained as the consequence of improved microbe-electrode interaction. However,… More >

  • Open AccessOpen Access

    ARTICLE

    Effect of Post-Added Water Amount on Pre-Concentrated Bark Foaming Materials by Mechanical Stirring

    Jinxing Li1,#, Jingjing Liao1,#, Jun Zhang1, Xiaojian Zhou1,2,*, Hisham Essawy3, Guanben Du1,2
    Journal of Renewable Materials, Vol.8, No.12, pp. 1607-1616, 2020, DOI:10.32604/jrm.2020.013976
    (This article belongs to this Special Issue: Renewable Foam Materials and Composites)
    Abstract In this study, pre-concentrated bark, furfuryl alcohol and other biomass raw materials were used to prepare foaming materials by high-speed mechanical stirring without using a foaming agent. We investigated the effect of the postadded water amount on the properties of foaming materials. In particular, we determined basic physical properties of these materials, including the limiting oxygen index (LOI), porosity, thermal conductivity, thermogravimetric analysis, pore size distribution, and microstructure. The results of scanning electron microscopy (SEM) indicated that the pore size distribution was uniform and the pore size increased with increasing water volume. Thermogravimetric analysis (TG/ DTG) showed that when the… More >

  • Open AccessOpen Access

    ARTICLE

    Investigation of Heterogeneous Ice Nucleation on the Micro-Cubic Structure Superhydrophobic Surface for Enhancing Icing-Delay Performance

    Senyun Liu1,2, Qinglin Liu1,2, Xian Yi1,2,*, Yizhou Shen4,*, Long Guo1,2, Wenqing Hou4, Haifeng Chen3, Zhen Wang4
    Journal of Renewable Materials, Vol.8, No.12, pp. 1617-1631, 2020, DOI:10.32604/jrm.2020.014158
    (This article belongs to this Special Issue: Green Coating and Film for Degeneration Protection)
    Abstract The aim of this study is to explore the heterogeneous ice nucleation behavior based on controllable micro-cubic array structure surfaces from the statistic perspective. To this end, we firstly constructed a group of micro-cubic array structures on silicon substrates by a selective plasma etching technique. After grafting low-free-energy substance, the as-constructed micro-cubic array structure surfaces exhibited higher non-wettability with the water contact angle being up to 150°. On this basis, 500 cycles of freezing and melting processes were accurately recorded to analyze the instantaneous ice nucleation behavior according to the statistical results of freezing temperature. As a consequence, the statistical… More >

  • Open AccessOpen Access

    ARTICLE

    Sawdust Short Fiber Reinforced Epoxidized Natural Rubber: Insight on Its Mechanical, Physical, and Thermal Aspects

    O. S. Dahham1, N. Z. Noriman1,2,*, H. Jaya1, R. Hamzah1, M. U. Umar2,3, I. Johari4
    Journal of Renewable Materials, Vol.8, No.12, pp. 1633-1645, 2020, DOI:10.32604/jrm.2020.011377
    (This article belongs to this Special Issue: Renewable Polymer Materials and Their Application)
    Abstract In this work, Epoxidized natural rubber/sawdust short fiber (ENR-50/ SD) composites at different fiber content (5, 10, 15 and 20 phr) and size (fine size at 60–100 μm and coarse size at 10–20 mm) were prepared using two-roll mill and electrical-hydraulic hot press machine respectively. Curing characteristics, water uptake, tensile, morphological, physical, and thermal properties of the composites were investigated. Results indicated that the scorch time and cure time became shorter whereas torque improved as SD content increase. Though the decline of tensile strength and elongation at break values, modulus, hardness and crosslinking density have shown enhancements with the increasing… More >

  • Open AccessOpen Access

    ARTICLE

    Experimental Research of Concrete with Steel Slag Powder and Zeolite Powder

    Yang Ming1,2,3, Ping Chen1,2,3,*, Yuanhao Wang1,2,3,*, Ling Li1,2,3, Xuandong Chen1,2,3, Pengliang Sun1,2,3,4
    Journal of Renewable Materials, Vol.8, No.12, pp. 1647-1655, 2020, DOI:10.32604/jrm.2020.011929
    Abstract In order to increase use ratio of steel slag solid waste, the concrete containing steel slag powder and zeolite powder as admixtures was prepared by using the orthogonal test method. The effects of water-binder ratio, sand ratio, steel slag powder content and zeolite powder on working properties, mechanical strength and chloride ion permeability of the concrete was studied. It was found that the early strength of the concrete had a decrease with the mixing of steel slag and zeolite powders, but its later strength approached to pure concrete. Moreover, the physical filling and pozzolanic activity of the admixtures increased the… More >

  • Open AccessOpen Access

    ARTICLE

    Feasibility Study on Fabrication of Geopolymer Bricks by Wasted Grinding Wheel at Room Temperature

    Yi-Che Hsieh1,*, Ta-Wui Cheng2, Chia-Ho Wu2
    Journal of Renewable Materials, Vol.8, No.12, pp. 1657-1670, 2020, DOI:10.32604/jrm.2020.013353
    (This article belongs to this Special Issue: Renewable building materials and properties)
    Abstract In this study, the feasibility of producing eco-friendly bricks by using geopolymer technology and a waste grinding wheel (WGW) from the grinding wheel industries was investigated. Nowadays, in order to meet industrial needs, for instance, in Taiwan, approximately 500,000 grinding wheels are used annually. That is, a large number of “waste” grinding wheels are produced. Furthermore, few studies have been conducted on the use of WGWs as raw materials in geopolymer applications. The use of geopolymer technology to form bricks can avoid the utilization of clay and cement and even prevent the use of a high-temperature process in kilns. Moreover,… More >

  • Open AccessOpen Access

    ARTICLE

    3D Printing of Polylactic Acid Bioplastic–Carbon Fibres and Twisted Kevlar Composites Through Coextrusion Using Fused Deposition Modeling

    J. Y. Tey*, W. H. Yeo, Y. J. King, W. O. Ding
    Journal of Renewable Materials, Vol.8, No.12, pp. 1671-1680, 2020, DOI:10.32604/jrm.2020.011870
    (This article belongs to this Special Issue: Renewable materials for sustainable development)
    Abstract Polylactic acid (PLA) bioplastic is a common material used in Fused Deposition Modeling (FDM) 3D printing. It is biodegradable and environmentally friendly biopolymer which made out of corn. However, it exhibits weak mechanical properties which reduced its usability as a functional prototype in a real-world application. In the present study, two PLA composites are created through coextruded with 3K carbon fibres and twisted Kevlar string (as core fibre) to form a fibre reinforced parts (FRP). The mechanical strength of printed parts was examined using ASTM D638 standard with a strain rate of 1 mm/min. It has been demonstrated that the… More >

  • Open AccessOpen Access

    ARTICLE

    Experimental Study on Inert Gas-assisted Laser Cut Veneer Based on LOM

    Qingwei Liu1,2, Chunmei Yang1,2,*, Qian Miao1,2, Yifan Liu1,2, Jiuqing Liu1,*, Wenji Yu3
    Journal of Renewable Materials, Vol.8, No.12, pp. 1681-1689, 2020, DOI:10.32604/jrm.2020.012031
    (This article belongs to this Special Issue: Polymeric Composites Based on Sustainable Technologies and Renewable Materials)
    Abstract Based on the LOM (Laminated Object Manufacturing) process, an inert gas-assisted laser method for wood cutting was proposed. The carbonization degree of wood surface was improved by the introduction of helium (He) gas, and the influence of process parameters on the carbonization layer of wood surface was solved, it was significance to reduce the post-processing of LOM and improve the quality of forming workpiece. The cherry wood veneer was used as the experimental material, under the condition of the same process parameters, the wood was cut with or without inert gas-assisted, and the influence factors of kerf quality were studied… More >

  • Open AccessOpen Access

    ARTICLE

    The Influence of Two Natural Reinforcement Fibers on the Hygrothermal Properties of Earthen Plasters in Mogao Grottoes of China

    Wenbei Bi1, Zengfeng Yan1,*, Huan Zhao1, Lixin Sun2, Xudong Wang3,4, Zhengmo Zhang3
    Journal of Renewable Materials, Vol.8, No.12, pp. 1691-1710, 2020, DOI:10.32604/jrm.2020.012808
    Abstract Murals in Mogao Grottoes consist of three parts: support layer, earthen plasters and paint layer. The earthen plasters play a key role in the preservation of murals. It is a mixture of Dengban soil, sand, and plant fiber. Two different natural fibers, hemp fiber and cotton fiber, were reinforced to earthen plasters in the same percentage to evaluate the influence on hygrothermal performance. The two types of earthen plasters were studied: one containing hemp fiber in the fine plaster (HFP) and the other containing cotton fiber in the fine plaster (CFP). Specific heat capacity, dry thermal conductivity, water vapor permeability,… More >

  • Open AccessOpen Access

    ARTICLE

    Effects of Recycled Aggregate Content on Pervious Concrete Performance

    Lei Guo1,2,3, Zi Guan1, Lixia Guo1,2,3,*, Weiping Shen1, Zhilong Xue1, Pingping Chen1, Mingru Li1
    Journal of Renewable Materials, Vol.8, No.12, pp. 1711-1727, 2020, DOI:10.32604/jrm.2020.013415
    (This article belongs to this Special Issue: Renewable building materials and properties)
    Abstract A recycled aggregate (RA) was prepared by crushing and sieving demolished discarded concrete pavements and was subsequently tested and analyzed to determine its various physical properties. On this basis, pervious concrete (PC) mix proportions were designed. Coarse RA particles with sizes of 5–10 and 10–20 mm were selected. Concrete specimens were prepared with a water–cement ratio of 0.3, an aggregate–cement ratio of 4.5, the substitute rates of RA with 0, 25%, 50%, 75% and a single-/double-gap-graded RA mix (mass ratio of particles with sizes of 5–10 mm to particles with sizes of 10–20 mm: 1:1, 1:2, 2:1, 2:3 and 3:2).… More >

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