Article
Construction & Building Technology
Dylan Jubinville, Costas Tzoganakis, Tizazu H. Mekonnen
Summary: This study investigated the effects of simulating the recycling of PLA and Maleated PLA on its structure and physico-chemical properties using thermo-mechanical processes, and combining it with pristine and modified wood flour for the production of biocomposites. The modified samples exhibited superior water repellent and dimensional stability capabilities.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Polymer Science
Antonella Patti, Gianluca Cicala, Stefano Acierno
Summary: The study found that adding wood flour as a filler to recycled polyethylene leads to increased viscosity and thermal degradation with increasing wood loading. However, the material still shows good thermal stability within a certain temperature range.
Article
Engineering, Environmental
Yung-Chuan Chiou, Ming-Yuan Shen, Chin-Lung Chiang, Yi-Luen Li, Wei-Min Lai
Summary: This study utilized maleic anhydride grafted polyolefin elastomers and methyl methacrylate-butadiene-styrene copolymer as impact modifiers to prepare wood-plastic composites (WPCs) from recycled materials. The research investigated the thermal and mechanical properties of WPCs with different polymer blend ratios, revealing that the toughening effect of POE-g-ma/WPC was slightly better than MBS/WPC.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Engineering, Mechanical
S. Matkovic, M. Bek, M. Kalin
Summary: In this study, we evaluated the tribological performance of polypropylene composites with wood-flour fillers obtained as a by-product from the wood-processing industry. The addition of wood fillers significantly improved the tribological performance of the composites compared to neat polypropylene materials, reducing friction coefficient and improving wear resistance. The use of wood fillers could compensate for the poorer properties of recycled materials, making the polypropylene-wood composites a suitable sustainable choice for tribological applications.
Article
Multidisciplinary Sciences
Yasir Qayyum Gill, Umer Abid, Muhammad Shafiq Irfan, Farhan Saeed, Abdul Shakoor, Ateeqah Firdaus
Summary: Wood polymer composites (WPCs) are a highly competitive type of hybrid composite materials with potential applications in automotive, furniture, and construction industry. This study fabricated PP-wood flour composites using melt blending extrusion, and characterized their chemical makeup, mechanical features, thermal stability, and environmental sustainability during machining. The research highlighted the increased stiffness of WPCs due to wood flour loading, as well as the reduced waste generation through drilling composites.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Polymer Science
Kishor Biswas, Vinay Khandelwal, Sourindra Nath Maiti
Summary: Teak wood flour reinforced high density polyethylene and maize starch composites were prepared with maleic anhydride grafted polyethylene as a compatibilizer. Mechanical properties of the composites improved with the addition of teak wood flour, while the damping factor peak and storage modulus were higher than HDPE, showing potential for interior, automobile, and packaging applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Francisco Burgada, Eduardo Fages, Luis Quiles-Carrillo, Diego Lascano, Juan Ivorra-Martinez, Marina P. Arrieta, Octavio Fenollar
Summary: This study manufactured green composites from recycled polypropylene and short hemp fibers reinforced with two types of compatibilizing agents. The addition of PP-g-MA improved the fiber-matrix interaction, while incorporating MLO had a plasticizing effect on the composites.
Article
Construction & Building Technology
Wei Tang, Junjie Xu, Qi Fan, Wenjuan Li, Haiyang Zhou, Tao Liu, Chuigen Guo, Rongxian Ou, Xiaolong Hao, Qingwen Wang
Summary: This study successfully fabricated low-cost and high-strength ultra-high-filled wood fiber/polypropylene composites using recycled polypropylene and wood fiber, showing excellent mechanical properties and creep resistance.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Materials Science, Composites
Chuigen Guo, Ran Chen, Liping Li
Summary: The study aimed to evaluate the thermal degradation and flame retardancy of straw flour-polypropylene and wood flour-polypropylene composites, showing that the addition of ammonium polyphosphate can significantly improve flame retardancy and increase char residue.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2021)
Article
Materials Science, Textiles
Wei Wang, Liu Liu, Ning Ding, Ruiyun Zhang, Jianyong Yu
Summary: This study prepared polypropylene composites filled with different contents of wood powder and characterized their properties. It was found that the addition of wood powder significantly increased the strength and modulus of the composites, but had a negative impact on impact strength. Dynamic mechanical testing showed that the storage modulus increased with the increase of wood powder content. Therefore, wood powder-filled polypropylene composites have the potential to replace traditional glass fiber-reinforced materials.
TEXTILE RESEARCH JOURNAL
(2021)
Article
Materials Science, Paper & Wood
Bekir Cihad Bal
Summary: The recycling industry has experienced rapid growth in recent years, with paper, plastic, glass, and metals being the most commonly recycled materials. This study explores the production of composite boards using recycled polyethylene, used Tetra Pak boxes, and pine wood flour as fillers. The experimental results indicate that while increasing the wood flour content in the composite boards can enhance certain mechanical properties, it also leads to a decrease in other properties.
Article
Polymer Science
Qinghua Yuan, Wei Yang, Zhuwen Ma, Zhenrui Huang, Lin Cao, Zhidan Lin, Peng Zhang
Summary: The present investigation explores the use of tobacco stalks flour and magnesium oxysulfate whiskers as fillers to enhance the properties of recycled polypropylene. The addition of tobacco stalks flour improves the mechanical properties of the composites, while the addition of magnesium oxysulfate whiskers enhances their tensile strength. Additionally, the presence of tobacco stalks flour increases the water absorption and antibacterial ability of the hybrid composites.
Article
Materials Science, Multidisciplinary
Shengbo Ge, Shida Zuo, Minglong Zhang, Yonghong Luo, Rui Yang, Yingji Wu, Ye Zhang, Jianzhang Li, Changlei Xia
Summary: The study found that decayed wood plastic composites with chitosan exhibited better properties than decayed wood plastic composites without any additive, and even better than sound wood plastic composites. Adding chitosan to decayed wood powder and PVC improved the performance of the DWPC, reaching the level of sound wood plastic composites. This work proposed a novel green strategy for utilizing decayed wood for making polyvinyl chloride/wood flour composites.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Polymer Science
Marko Bek, Alexandra Aulova, Klementina Pusnik Cresnar, Sebastjan Matkovic, Mitjan Kalin, Lidija Slemenik Perse
Summary: The use of neat and recycled polypropylene matrix materials in wood-polymer composites showed different creep properties. The composites with neat polypropylene matrix exhibited superior creep resistance due to higher crystallinity and better interfacial adhesion caused by the formation of a transcrystalline layer. Compared to composites with recycled polypropylene matrix which does not form a transcrystalline layer, composites with neat polypropylene matrix had a 25% reduction in creep compliance. However, from 20 wt.% on, the creep compliance of composites with recycled polypropylene matrix was comparable or even surpassed that of unfilled neat polypropylene matrix, making it a promising way to promote sustainability.
Article
Multidisciplinary Sciences
Beibei Wang, Xuanye Wang, Lijuan Zhao, Qiuhui Zhang, Guochao Yang, Daihui Zhang, Hongwu Guo
Summary: The effects of different flame treatment processes on flame performance, smoke suppression, thermal property, and surface micrographs of flame retardant foamed polyurethane/wood-flour composites were investigated. The results showed that impregnation process improved the combustion behaviors, resulting in lower total heat release, lower peak heat release rate, prolonged time to ignition, more residues, and better combustion safety.
Article
Polymer Science
Lidia Kunz Lazzari, Daniele Perondi, Ademir Jose Zattera, Ruth Marlene Campomanes Santana
Summary: The reuse of poultry litter waste for the production of biochar and carbon cryogels as CO2 adsorbents presents an attractive perspective to minimize environmental damage caused by CO2 emissions.
POLIMEROS-CIENCIA E TECNOLOGIA
(2022)
Article
Materials Science, Textiles
Ruan Ezequiel Gemmer, Cleide Borsoi, Betina Hansen, Marcos Aurelio Dahlem Junior, Edson Luiz Francisquetti, Lilian Vanessa Rossa Beltrami, Ademir Jose Zattera, Andre Luis Catto
Summary: In this study, nanocellulose was extracted from agro-industrial residue of yerba mate using chemical, physical, and mechanical treatments, showing that steam explosion as the initial treatment step significantly increased the crystallinity index of cellulose nanofiber. Furthermore, samples treated by steam explosion and ultra-fine grinding showed a higher yield compared to other treatment methods.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Materials Science, Paper & Wood
Roberta Motta Neves, Heitor Luiz Ornaghi, Benoit Duchemin, Ademir Jose Zattera, Sandro Campos Amico
Summary: This study investigates the grafting amount and structural characteristics of microcrystalline cellulose (MCC) functionalized with 3-aminopropyltriethoxysilane (APTES) (MCC-Si) at different contents. Three different methods for quantifying the APTES grafting amount were compared, and supplementary analyses were performed. The nitrogen content method showed better correlation with the grafting amount. The structural properties of MCC-Si samples were explored using nuclear magnetic resonance, Fourier-transform infrared spectroscopy, and scanning electron microscopy.
Article
Polymer Science
Henrique Carvalho de Oliveira, Alessandra Lavoratti, Iaci Miranda Pereira, Tamara Indrusiak Silva, Bluma Guenther Soares, Lilian Vanessa Rossa Beltrami, Ademir Jose Zattera
Summary: This study developed epoxy resin/graphene nanoplatelets (NPG) composites with different mass fractions of graphene nanoplatelets for galvanized steel substrates. The results showed that the composites containing 0.25% mass fraction of NPG exhibited the best microwave absorber performance.
JOURNAL OF POLYMER ENGINEERING
(2022)
Article
Materials Science, Textiles
Danieli Dalle, Betina Hansen, Ademir Jose Zattera, Heitor Luiz Ornaghi, Francisco Maciel Monticeli, Andre Luis Catto, Cleide Borsoi
Summary: Tobacco residues were treated with different concentrations of NaOH and different exposure times, and their thermogravimetric curves were modeled using an artificial neural network. A 3D surface response was created to predict the thermogravimetric curves at different heating rates.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Materials Science, Paper & Wood
Heitor Luiz Ornaghi, Roberta Motta Neves, Eduardo Fischer Kerche, Francisco Maciel Monticeli, Ademir Jose Zattera
Summary: This study evaluated the creep behavior of micro-cellulose epoxy-based composites and investigated the effect of silanization treatment on the reinforcements. The results showed that micro crystalline cellulose improved the structural integrity of the composites, and the incorporation of silanized-MCC increased the mechanical behavior of the composite.
Article
Materials Science, Composites
Roberta Motta Neves, Eduardo Fischer Kerche, Ademir Jose Zattera, Sandro Campos Amico
Summary: This study investigates the effects of hybridizing MCC and MCCSi with NBR on the thermal, mechanical, and dynamic-mechanical behavior of epoxy. The results show that the addition of MCCSi improves the thermal stability and toughness of epoxy, while decreasing the tensile strength and elastic modulus.
JOURNAL OF COMPOSITE MATERIALS
(2022)
Article
Environmental Sciences
Cristina P. Dario, Alex Piva, Ademir J. Zattera, Celso Roman, Elidio Angioletto, Matheus V. G. Zimmermann
Summary: In recent years, there has been a growing focus on the reuse of residue for the production of new composite materials. This study developed composite formulations using discarded foundry sand as filler and evaluated their properties. The results found that an increase in the sand content led to a degradation in the mechanical properties of the composites, resulting in increased stiffness and density. The presence of discarded foundry sand also increased the toxicity of the samples.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2022)
Review
Polymer Science
Roberta Motta Neves, Heitor Luiz Ornaghi Jr, Ademir Jose Zattera, Sandro Campos Amico
Summary: This systematic review discusses the toughening of epoxy resin using liquid rubber and hybrid liquid epoxy/liquid rubber/particle composites in the last ten years. The study analyzes the mechanical and morphological characteristics of the composites and the production methodologies employed. The identified trends and future perspectives are presented for further research and development.
JOURNAL OF POLYMER RESEARCH
(2022)
Article
Materials Science, Composites
Jonas Tedesco, Lilian V. R. Beltrami, Sandro Campos Amico, Ademir J. Zattera
Summary: This research presents an alternative method for preparing composites using bleached cellulose nanofibers (CNF) gel suspension and low-density polyethylene (LDPE). The method involves thermokinetic mixing to incorporate CNF into LDPE without prior drying. The results show efficient incorporation of CNF into LDPE with similar mechanical properties to neat polymer, indicating its potential application in cellulose/polymer industry.
JOURNAL OF COMPOSITE MATERIALS
(2022)
Article
Materials Science, Characterization & Testing
Luiz C. C. Jesus, Janaine M. Oliveira, Rosineide M. Leao, Lilian R. Beltrami, Ademir J. Zattera, Carla T. M. Anflor, Thiago C. R. Doca, Sandra M. Luz
Summary: This study investigated the mechanical and thermal properties of MFC-reinforced PLA composites and found that the addition of MFC can increase the flexural, tensile, indentation, impact and modulus strengths of the composites. DIC analysis showed that the 0.5wt% MFC/PLA composite exhibited better homogeneity and load dispersion, resulting in higher rigidity, maximum stress, and Poisson's ratio.
Article
Materials Science, Multidisciplinary
Elena Mastalygina, Zubarzhat Abushakhmanova, Matheus Poletto, Petr Pantyukhov
Summary: This study investigated the biodegradability of five commercial plastic bags labeled as biodegradable and two referent materials through a soil test and a weatherometer test. The changes in bag samples were analyzed using various methods. The bags were divided into two groups based on their composition. The second group showed oxidation under UV radiation. The presence of chalk filler caused mass loss in the samples. Three samples in the first group, filled with starch, showed high biodegradability under soil conditions.
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
(2023)
Article
Polymer Science
Pavel G. G. Shelenkov, Petr V. V. Pantyukhov, Matheus Poletto, Anatoly A. A. Popov
Summary: Highly filled biocomposites are used as masterbatches added to traditional polymers to enhance biodegradability. This study focused on biocomposites made with different trademarks of EVA and natural fillers. The EVA trademarks varied in melt flow index and vinyl acetate content. The influence of vinyl acetate content and melt flow index on the properties of highly filled biocomposites was evaluated. One EVA trademark with high molecular weight and high VA content was chosen for creating optimal highly filled composites with natural fillers.
Article
Materials Science, Multidisciplinary
Giordano Pierozan Bernardes, Matheus de Pra Andrade, Matheus Poletto
Summary: The effect of alkaline treatment on pineapple crown fibres (PCF) was studied. The treatment increased cellulose content, reduced fibre diameter, increased crystallinity index, and improved thermal stability. Untreated PCF was easier to produce bioenergy through pyrolysis, while treated PCF could be used as filler in polymeric composites.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Polymer Science
Giordano P. Bernardes, Matheus P. Andrade, Matheus Poletto, Nathalia R. Luiz, Ruth M. C. Santana, Maria M. de C. Forte
Summary: The influences of ethylene-based elastomer (EE) and the compatibilizer agent ethylene-butyl acrylate-glycidyl methacrylate (EBAGMA) on the thermal degradation of PLA/EE blends were evaluated. It was found that the presence of EE and EBAGMA synergistically improved the thermal stability of PLA.
