Article
Construction & Building Technology
Hongxia Pu, Caihong Shu, Rui Dai, Hui Chen, Zhihua Shan
Summary: This experiment focuses on preparing value-added boards using leather fiber and semi-liquefied bamboo fiber. The feasibility of mechano-chemical action is confirmed and the composited board is prepared by the response surface method. The results show that the composited board meets the national standard and has potential application value.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Shahrzad Mehrzad, Ebrahim Taban, Parham Soltani, Seyed Ehsan Samaei, Ali Khavanin
Summary: The study found that fibrous samples made from sugarcane bagasse waste fibers exhibited high thermal and acoustic performance, especially in the low- and mid-frequency ranges. Compared with natural and nonrenewable counterparts, sugarcane bagasse waste as an innovative sustainable construction material showed competitive performance in terms of thermal and acoustical characteristics.
BUILDING AND ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Nga H. N. Do, Tan M. Le, Huy Q. Tran, Nghiep Q. Pham, Kien A. Le, Phuc T. T. Nguyen, Hai M. Duong, Tuan A. Le, Phung K. Le
Summary: By converting fly ash into a lightweight composite aerogel reinforced with recycled polyethylene terephthalate fiber, a feasible zero-waste method has been developed to address environmental pollution, resulting in aerogels with extremely low density, high porosity, low thermal conductivity, flexibility, and noise reduction. This study offers a safe, environmentally friendly, and cost-effective solution for recycling fly ash into high-value engineering materials.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Environmental
Le Ke, Kai Zhao, Xiaoyu Yan, Xiaojuan Cao, Xiaoyu Wu, Chi Zhang, Tingting Luo, Tao Ding, Ning Yan
Summary: This study developed a green method to convert Cr-containing leather shavings into carbon catalysts. The carbon catalysts, co-doped with N and Cr, effectively catalyze the oxygen reduction reaction to yield H2O2 with high selectivity. Moreover, these catalysts can adsorb and decompose organic pollutants in wastewater.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Polymer Science
Byeong Seok Kim, Jinkyu Choi, Ye Seo Park, Yingjie Qian, Sang Eun Shim
Summary: In this study, a semi-rigid polyurethane foam/aerogel composite was prepared for the first time using an economical and practical approach. The composite exhibited lower thermal conductivity, improved sound absorption coefficient, and enhanced hydrophobicity compared to the neat foam.
MACROMOLECULAR RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
W. Ding, H. Liu, X. Hao, L. Dong, X. Pang, Z. Ding
Summary: Waste collagen fiber from non-chrome metal complex tanned leather shavings was converted to a bio-additive (DCH) via catalytic peroxide oxidation. This DCH improved the performance of biomass-derived aldehyde tanned chrome-free leather and showed filling effects, better dyeing uniformity, mechanical strengths, and organoleptic properties.
MATERIALS TODAY SUSTAINABILITY
(2022)
Article
Engineering, Mechanical
Yong Xiao, Jianzhi Cao, Shuaixing Wang, Jiajia Guo, Jihong Wena, Hao Zhang
Summary: Recent studies have shown the promising applications of plate-type metastructures in low-frequency sound insulation, addressing key issues such as efficient prediction of sound transmission loss (STL), understanding unusual STL behavior, and designing parameters for optimal STL. Analysis of dynamic surface mass density and parametric analysis provide insights into predicting and optimizing the sound insulation performance of metastructures. Experimental validation of design guidelines offers practical guidance for the design of sound insulation metastructures.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
Xingyu Zhao, Kunpeng Ruan, Hua Qiu, Xiao Zhong, Junwei Gu
Summary: Living in a noisy environment for a long time can cause harm to human physical and mental health. In this study, water-soluble polyamide acid and PVP were used to prepare PI-PVP aerogels with hierarchical cellular structures, which exhibited excellent sound absorption and had broad application prospects.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Materials Science, Ceramics
Mengmeng Yang, Lixia Yang, Zhaofeng Chen, Yang Ding, Lihao Liu, Wu Qiong, Tianlong Liu, Manna Li
Summary: A facile strategy was proposed to create SiO2 nanofibers-BN nanoribbons assembled binary aerogel with excellent temperature-invariant super-flexibility, as well as low thermal conductivity, low infrared radiation and excellent sound absorption properties. The unique structure of the nanofibers-nanoribbon aerogel, combined with the infrared reflection layer of Al foil, effectively hides high infrared targets. The nanofibrous-nanoribbons binary aerogel possesses low thermal conductivity and outstanding sound absorption ability, making it an ideal candidate for thermal insulation and sound absorption in multi fields.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Junzhe He, Jinjin Li, Jiulin Zhang, Peng Yi, Xin Sun, Guanyu Han, Xufeng Li, Ruibing Zhang, Xiaofang Liu, Ronghai Yu
Summary: This study prepares Fe3O4/MXene composite aerogel by metal ion-assisted crosslinking method without adding additional crosslinking agents. A layer of hydrophobic fumed silica is further sprayed on the aerogel. SiO2/MXene/Fe3O4 aerogels show excellent electromagnetic wave absorption performances, achieving a broad absorption bandwidth up to 8.8 GHz at a thin thickness of 1 mm. The hybrid aerogel also exhibits superhydrophobic and thermal insulation properties, enhancing the resistance to harsh environments and prolonging the service time of absorbers.
Article
Agricultural Engineering
Huijuan Shao, Lu He, Lu Xiang, Kai Tang, Xiangzhong Li, Jinqiu Qi, Jiulong Xie
Summary: A study successfully produced transparent nanocellulose films with UV-absorbing ability using microwave liquefaction and TBAA/DMSO dissolving system. The films had uniform cellulose structure and good tensile strength.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Chemistry, Physical
Katarzyna Kobiela-Mendrek, Marcin Baczek, Jan Broda, Monika Rom, Ingvild Espelien, Ingun Klepp
Summary: Using mountain sheep wool to produce sound-absorbing materials, it was found that felt made from coarse wool has high porosity and good sound absorption capacity, and the thickness of the felt and the pile height of the tufted fabric are crucial parameters affecting sound absorption.
Article
Polymer Science
Renivaldo J. Santos, Carlos T. Hiranobe, Guilherme Dognani, Michael J. Silva, Leonardo L. Paim, Flavio C. Cabrera, Giovanni B. Torres, Aldo E. Job
Summary: This study investigated the use of leather shavings as fillers in NR composites and evaluated the interfacial interaction between the filler and the matrix using various methods. The incorporation of leather waste improved the tensile strength and reduced the deformation of the composites, indicating a strong interaction between the leather shavings and NR matrix.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Engineering, Environmental
Tomasz Turzynski, Katarzyna Januszewicz, Pawel Kazimierski, Dariusz Kardas, Paulina Hercel, Jakub Szymborski, Jaroslaw Niewiadomski
Summary: Leather processing companies are facing the challenge of increasing costs for post-production waste disposal. To address this, thermal waste disposal at the plant and utilization of generated heat in the production process are gaining popularity. Research shows that by adding a small amount of wood sawdust to leather waste, its flammability can be improved, enabling stable combustion and avoiding the formation of sinters. Furthermore, leather waste can be an attractive and safe source of energy for companies, contributing to improved waste management in a circular economy.
Article
Construction & Building Technology
Oriana Palacio, Wim J. Malfait, Silvain Michel, Michel Barbezat, Zahra Mazrouei-Sebdani
Summary: Vibration reduction and structure-borne sound insulation are important for creating a healthy housing environment. Silica aerogels, with their low resonance frequency and dynamic stiffness, show superior performance compared to recycled rubber for vibration isolation in construction.
CONSTRUCTION AND BUILDING MATERIALS
(2023)