Article
Engineering, Manufacturing
Fuli Xu, Yuan Wang, Yitong Feng, Fei-Fei Chen, Ying-Jie Zhu, Yan Yu
Summary: A composite paper composed of PEI-modified GO and HAP nanowires has been developed, showing improved thermal stability and flame retardancy. The composite paper provides continuous fire warning and maintains mechanical strength and high flexibility after fire attacking.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Materials Science, Multidisciplinary
Bettina Strommer, Alexander Battig, Daniele Frasca, Dietmar Schulze, Christian Huth, Martin Bohning, Bernhard Schartel
Summary: The incorporation of nanoparticles like multilayer graphene into elastomeric composites improves their technical performance, such as mechanical behavior and electrical conductivity. Traditional filler types usually fulfill single purposes and require high loadings, while a small amount of multilayer graphene can reduce filler content and maintain the multifunctional characteristics of rubber composites.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Shahid Iqbal, Sohail Nadeem, Mirza Nadeem Ahmad, Mohsin Javed, Hashem O. Alsaab, Nasser S. Awwad, Hala A. Ibrahium, Eslam B. Elkaeed, Fwzah H. Alshammari, Norah Alwadai, Mohammed Issa Alahmdi, Ali Bahadur, Sadaf ul Hassan, Ayesha Mohyuddin
Summary: Polyorthochloroaniline (POC) nanocomposites with montmorillonite (MMT) clay (POC/MMT) have distinctive properties and wide applications. The preparation of POC/MMT clay nanocomposites was achieved chemically. The influence of MMT clay on the characteristics of POC was investigated, and the results showed improved flame retardancy and thermal stability.
FRONTIERS IN MATERIALS
(2022)
Article
Engineering, Manufacturing
Wenhao Yang, Jing Liang, Shuilai Qiu, Yifan Zhou, Bin Zou, Jingwen Wang, Lei Song, Yuan Hu
Summary: This study prepares functional BP nanosheets by combining the smoke suppression mechanism and oxidation resistance mechanism, which effectively enhances the fire safety. It provides a new approach for the preparation of high-performance epoxy composites.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Nanoscience & Nanotechnology
Brandon L. Williams, Hao Ding, Zaili Hou, Patrick O. Paul, Frank A. Lewis, Andrew T. Smith, Luyi Sun
Summary: A one-pot self-assembled nanocoating of PVA and MMT with well-defined nanostructure was spray coated onto double-walled corrugated cardboard, effectively inhibiting flame spread and improving flame retardancy through the formation of a dense char layer after burning tests.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2021)
Review
Materials Science, Multidisciplinary
Nour F. Attia, Sally E. A. Elashery, Asmaa M. Zakria, Abdelazeem S. Eltaweil, Hyunchul Oh
Summary: Graphene has great potential as a flame retardant material in polymers and textiles, enhancing their fire safety and thermal stability. The synthesis methods and nanofillers can impact the flame retardant properties of graphene.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Chemistry, Physical
Lingxin He, Yulu Zhu, Fukai Chu, Wei Cai, Lei Song, Yuan Hu
Summary: This research develops a composite material with high electrical conductivity and electromagnetic shielding effectiveness by depositing polyaniline on a two-dimensional material. Black phosphorous is introduced as a flame retardant to improve the fire safety performance of the composite. The composite also exhibits high thermal conductivity and significantly reduced heat release rate and smoke production, indicating excellent fire safety performance.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Manufacturing
Wen An, Jianzhong Ma, Qunna Xu, Hui Zhang
Summary: Leather is widely used for its excellent comprehensive properties and as the standards of living increase, the demands on functionality and performance of leather-based materials also increase. Introducing flame retardants into leather is important to enhance its flame retardant properties. This review focuses on the research progress in making flame retardant leather, including evaluation index, classification of flame retardants, preparation methods, influence on leather properties, and future trends and challenges.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Chemistry, Applied
Sensen Han, Fei Yang, Qingshi Meng, Jun Li, Guoxin Sui, Xiao Su, Hsu-Chiang Kuan, Chun H. Wang, Jun Ma
Summary: This study presents a method to assemble renewable adenosine triphosphate (ATP), melamine, and graphene nanoplatelets (GNPs) into hybrid particles (ATP-melamine-GNPs) for flame-retarding polymer nanocomposites. These hybrid particles showed uniform dispersion and strong interfacial adhesion in an epoxy matrix. The addition of ATP-melamine-GNPs improved the mechanical properties and flame retardancy of the nanocomposites. The findings of this work provide a new platform for developing environmentally friendly and mechanically resilient polymer nanocomposites with flame-retardant properties.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Chemistry, Multidisciplinary
Federico Carosio, Lilian Medina, Joby Kochumalayil, Lars A. Berglund
Summary: A new study has developed fire resistant foams using biobased components to replace petroleum-based foams, showing excellent fire-retardant performance.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Forestry
Zhouyao Yue, Huashan Wang, Mingxiu Zhang, Meiyi Wang
Summary: In this study, polylactic acid (PLA)/epichlorohydrin modified pinewood flour (EWF) composites were prepared and systematically investigated for their mechanical, thermal, and rheological properties. The results showed that the addition of epichlorohydrin modified pinewood flour (EWF) significantly improved the tensile and impact properties of the biocomposite, as well as enhanced the crystallinity. Additionally, the PLA/EWF composite exhibited improved storage and loss modulus due to increased molecular entanglement and crosslinking.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2022)
Review
Materials Science, Multidisciplinary
Urszula Szeluga, Slawomira Pusz, Bogumila Kumanek, Karolina Olszowska, Anastasiia Kobyliukh, Barbara Trzebicka
Summary: This review discusses the application of graphene materials as fillers in epoxy composites, highlighting the significance of functionalization methods in improving the properties of graphene-epoxy composites. It also considers the influence of graphene filler structure and dispersion preparing procedure on the final properties of the composites.
CRITICAL REVIEWS IN SOLID STATE AND MATERIALS SCIENCES
(2021)
Article
Polymer Science
Weijiang Huang, Kui Wang, Chunyun Tu, Xiaolu Xu, Qin Tian, Chao Ma, Qiuping Fu, Wei Yan
Summary: This study investigated the synergistic effects of PN-DOPO and OMMT on the flame retardancy, thermal stability, and mechanical properties of PP composites. The results showed that the combination of PN-DOPO and OMMT improved the fire resistance and overall performance of the PP composites. Rheological and TGA analysis indicated enhanced network structure and thermal stability in the presence of OMMT.
Article
Engineering, Environmental
Yiheng Ma, Yuanmeng Lou, Hong Zhang, Le Yang, Danqi Yang, Jianzhong Xu, Haiyun Ma
Summary: A novel core-shell organic-inorganic hybrid nanowires were designed and synthesized to enhance the fire safety of epoxy resin. The addition of these nanowires significantly increased the limited oxide index (LOI) and improved the combustion performance, smoke suppression, and mechanical strength of the epoxy resin.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Pyoung-Chan Lee, Dongwoo Kang, Ji Taek Oh, Jae Young Seo, Donghyeok Shin, Jae-Uk Jung, Youn Ki Ko, Jin Uk Ha, Myeong-Gi Kim
Summary: In this study, polypropylene (PP) was combined with a graphene/montmorillonite hybrid (MMT-G) to create a nanocomposite material with reduced moisture absorption. The modified nanofiller showed low hydrophilicity and good compatibility with the PP matrix, resulting in improved water contact angle. The use of PP/MMT-G nanocomposites in automotive headlamp housing reduced moisture absorption and decreased weight.
Article
Chemistry, Physical
Nadine J. Kanik, Artur Kuligiewicz, Jeffrey T. Cullen
Summary: This study examined the effects of different pre-treatments on the structural H-isotope composition of clay minerals. The results showed that different pre-treatments had varied impacts on different clay minerals, and the choice of pre-treatment should be based on the specific properties and mineralogy of the samples.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Lorenzo Lisuzzo, Giuseppe Cavallaro, Stefana Milioto, Giuseppe Lazzara
Summary: This study proposes Pickering emulsions based on wax and halloysite clay nanotubes for coating silk sutures to increase their loading capacity towards eosin. The presence of halloysite/wax microspheres on the surface of silk sutures has also been explored for controlled release of hydrophobic drugs. The influence of the coating on the thermal and mechanical properties of the sutures has been studied using various techniques. In conclusion, the wax/halloysite Pickering emulsions can successfully generate hydrophobic microdomains on the surface of silk sutures, leading to enhanced flexibility and improved loading capacity towards eosin.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Bruna F. Alves, Rita C. P. Nunes, Luiz C. Bertolino, Elizabete F. Lucas
Summary: Operational problems in the oil industry caused by the precipitation of paraffins can be prevented by using polymeric additives. This article evaluates the use of polymeric nanocomposites as pour point reducers in different types of crude oil and finds that they are more efficient than pure poly(ethylene-covinyl acetate) (EVA) in reducing the pour point. The nanocomposites also modify the wax crystals and reduce the viscosity of the oil samples.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
K. A. Daniels, C. C. Graham, A. C. Wiseall, J. F. Harrington, P. Sellin
Summary: Geological storage with clay buffer is widely preferred for removing hazardous radioactive waste. The impact of fluid salinity and void space on the swelling behavior of barrier bentonites was examined through experiments. The findings suggest that clay swelling is suppressed at higher salinities, which affects the void-filling process.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
N. Werling, A. Kuligiewicz, A. Steudel, R. Schuhmann, F. Dehn, K. Emmerich
Summary: Thermal treatment of clay minerals can be used to produce building materials and environmentally friendly binders. This process involves dehydration, dehydroxylation, breakdown of structure, and recrystallization of high temperature phases. Rehydration and rehydroxylation are important factors to consider for geopolymers and SCM.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Xuan Wang, Hao Ding, Zhuoqun Xu, Jianmeng Zhang, Yanbin Yao
Summary: Rutile nano-TiO2 was loaded onto the surface of sericite to prepare sericite-rutile composite particles, which were then modified with HDTMS and sprayed onto the substrates to form sericite-rutile/HDTMS composite coatings with UV shielding and superhydrophobic self-cleaning properties. The coating exhibited good UV shielding rate and remained superhydrophobic after UV irradiation. The hierarchical structure of the sericite-rutile composite and the low surface energy of HDTMS contributed to the superhydrophobicity and UV shielding effect of the coating.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Kailang Sun, Taojun Zhang, Jie Zhou, Yonghong Liu, Minfeng Zeng, Zhen Yang, Ruokun Feng, Xiaorong Ren, Peng Zhang, Baoyi Wang, Xingzhong Cao
Summary: Chitosan-Pd0 nano particles encapsulated in Al, Co-pillared montmorillonite nanocomposites were successfully synthesized using a facile one-pot heat treatment method. The Al, Co pillaring effectively expanded the surface area and generated numerous mesopores in the interlayer space of the MMt. The resultant nanocomposite exhibited similar high comprehensive catalytic performances as the one prepared by the regular divided-multistep method. The encapsulation of CS chains and doping of Co in the Al pillaring also contributed to the improved catalytic performance.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Nathalie Fagel, Isabel Israde-Alcantara, Reza Safaierad, Marttiina Rantala, Sabine Schmidt, Gilles Lepoint, Pierre Pellenard, Nadine Mattielli, Sarah Metcalfe
Summary: Environmental conditions significantly influence clay minerals, and studying clay sediments in tropical lakes can provide valuable insights into past environmental conditions. In this study, multiproxy records from sediment cores of three crater lakes in central Mexico were analyzed. The results showed that disordered kaolinite, formed through hydrolysis and hydrothermal alteration, was the predominant mineral in the sediments. The abundance of kaolinite varied in relation to organic carbon and organic matter-related elements, and showed opposite trends with lithogenic elements. Geochemical data suggested that the increase in kaolinite abundance is linked to the formation of organo-mineral aggregates and lake level changes in closed basins.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
M. J. Martin-Alfonso, A. Mejia, F. J. Martinez-Boza, P. Partal
Summary: The drilling industry is facing new challenges to develop eco-friendlier drilling fluids. Organic modified sepiolite dispersed in oil can be an excellent additive with suitable rheological properties. This study investigated the effect of alkyl ammonium modifiers on the microstructure and rheological properties of sepiolite-vegetable oil dispersions under high-temperature and high-pressure conditions.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Weiquan Zhan, Siyuan Yang, Shenxu Bao, Liuyi Ren, Cheng Liu
Summary: The interaction between talc and the depressor CMC was investigated through molecular dynamics simulation and density functional theory calculation. It was found that CMC showed stronger adsorption on the edge plane of talc due to enhanced interactions with polar groups and water molecules. The study also revealed specific interactions between H atoms in CMC and O atoms in the edge plane, as well as between O atoms in CMC and Si, Mg atoms in the edge plane. Hydration shells on the basal and edge planes of talc were examined to explain the phenomenon.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Pierre Dramou, Yiyang Sun, Xu Ni, Fangqi Wang, Hua He
Summary: In this study, a magnetic nanocomposite was prepared and used for the separation of rutin from real samples through magnetic solid phase extraction (MSPE). The nanocomposite exhibited high specific surface area, chemical and thermal stability, water solubility, and easy separation in aqueous solution. Characterization and experiments confirmed the successful synthesis and efficient enrichment ability of the nanocomposite.
APPLIED CLAY SCIENCE
(2024)