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Lignin defined ordered hard domains toward mechanically robust, long-term weather resistant bio-elastomer

International Journal of Biological Macromolecules 2025年

作者： ZiHan Li Haojie Hong Han Wu Dengfeng Wang Lin Liu Michał Puchalski Juming Yao School of Materials Science and Engineering Zhejiang Sci-Tech University Hangzhou 310018 China Zhejiang Provincial Innovation Center of Advanced Textile Technology Shaoxing 312000 China Faculty of Material Technologies and Textile Design Lodz University of Technology Lodz 90-924 Poland

High-performance elastomers with excellent mechanical strength, toughness, and weather resistance are attractive for service in complex environments, but face great challenge. Herein, this work proposed mechanically robust, highly stretchable, and long-term weather resistant polyurethane (PU) bio-elastomer with defined ordered hard domains based on lignin-mediated covalent and non-covalent assembly inspired by natural plants. Specifically, polyphenol lignin as structural and functional monomer was reacted with isocyanate to construct carbamate bonds (-NHCOO-) forming robust hard segments and strong H-bond interactions to facilitate the formation of soft-hard nanophase separation structures. Benefiting from the integration of polyphenol lignin as well as lignin-mediated multilevel structures, the synthesized lignin-derived polyurethane (LPU) displayed outstanding thermal and mechanical properties. The initial decomposition temperature of LPU increased by 75 °C compared with PU. The tensile strength, elongation at break, elastic modulus and toughness of LPU with lignin substitution of 70 % were high to 60.39 MPa, 532.52 %, 235.71 MPa and 183.24 MJ/m 3 , which were 2.82, 0.92, 5.43 and 2.73 times increment than PU, respectively. Importantly, such designed LPU being exposed to accelerated artificial weathering conditions including UV irradiation for 96 h, seawater corrosion for 60 d and heat aging at 100 °C for 7 d, demonstrated fascinating long-term weather resistance with excellent structural integrity and mechanical tolerance. The mechanism of weather resistance of LPU was investigated. Therefore, this work not only provides a novel strategy for developing superstrong, nonmigrating intrinsic weather-resistant PU elastomers for harsh environments, but also provides a promising application of lignin in green engineering materials.

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Effect of plasticizer on the rheological properties of Caesalpinia pulcherrima gum aqueous solutions 3rd

Effect of plasticizer on the rheological properties of Caesa...

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3rd International Symposium on Advanced Material Research, ISAMR 2019

作者： Sittikijyothin, Wancheng Khumduang, Khanaphit Mongkholrattanasit, Rattanaphol Department of Chemical Engineering Faculty of Engineering Burapha University 169 Tambon Saensook Amphur Muang Chonburi20131 Thailand Department of Textile Chemistry Technology Faculty of Industrial Textiles and Fashion Design Rajamangala University of Technology Phra Nakhon Bangkok10300 Thailand

ISBN: (纸本)9783035714647

The effect of plasticizers and content on rheological behaviour of Caesalpinia pulcherrima gum aqueous solutions and on mechanical properties on gum films was investigated. Three plasticizers as glycerol and sorbitol and propylene glycol at different ratios were used. The results presented that plasticizer adding reduced the apparent viscosity of mixture solution, caused by polymer interaction weakening. However, they exhibited shear-thinning behaviour and typical shape for macromolecular solutions in viscoelastic property. © 2020 Trans Tech Publications Ltd, Switzerland.

关键词： Plasticizers

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Degradation of Bio-Based Film Plastics in Soil Under Natural Conditions

SSRN

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SSRN 2022年

作者： Slezak, Radoslaw Krzystek, Liliana Puchalski, Michal Krucińska, Izabella Sitarski, Adam Department of Bioprocess Engineering Faculty of Process and Environmental Engineering Lodz University of Technology Wolczanska 213 Lodz90-924 Poland Institute of Material Science of Textiles and Polymer Composites Faculty of Materials Technology and Textile Design Lodz University of Technology Zeromskiego 116 Lodz90-924 Poland Kutno Sugar Beet Breeding Ltd. Straszkow 12 Klodawa62-650 Poland

The degradation of bio-based plastic materials in field soil under natural conditions was investigated in this study. Three bio-based plastics materials, which contained polylactide (PLA) with polybutylene adipate terephthalate and additives (PLA_1), PLA-based polyester blend with mineral filler (PLA_2), and polybutylene succinate with mineral filler (PBS_1) in the form of the film, were subjected to soil burial biodegradation processes. The experiments were carried out in a climate with an average annual temperature of 9.4°C, in winter and summer periods for one year. The degradation of the materials was evaluated by macro- and microscopic observations, weight loss, thermogravimetric analysis, and tensile test. Macroscopic observation indicated that changes in the color of film surface were visible for samples PBS_1 after 12 months of degradation. Using microscopic inspection the erosion of surface samples PLA_1 and PBS_1 after 12 months was observed. Mass loss of samples PLA_1 and PLA_2 after one year of degradation were below 0.6%. Moreover, for PBS_1 sample, mass loss was equal to 4.3%. Based on the obtained results of the mass loss, a description of the degradation kinetics was proposed, showing the changes in the thickness of the tested polymer over time. The thermal stability of the samples PLA_1 and PLA_2 decreased during the degradation process by 16.1 and 2.6°C, respectively, and for PBS_1 increased by 1.7°C. Tensile strength at break after 12 months of degradation decreased for sample PLA_1 and PLA_2 by 27.3 and 5.8%, respectively, and increased for sample PBS_1 by 28.2% compare to unexposed sample. © 2022, The Authors. All rights reserved.

关键词： Degradation

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Classification and Identification of Young Males' Shoulder Shapes using Extreme Learning Machine based on 3D Body Measurement

Classification and Identification of Young Males' Shoulder S...

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作者： Shu-Qing Wang Juan-Feng Jin Faculty of Clothing and Design Minjiang University Engineering Research Center of Textile and Clothing (Minjiang University) Fujian Province University Fujian Clothing Industry Technology Development Base

In order to meet the requirements of clothing shoulders,the young male shoulder shape ELM identification model based on three-dimensional body measurement was designed and *** on the measurement of three-dimensional human body,shoulder data of 213 young male students aged from 18 to 26 years old were *** the characteristic point curvature radius of the cross-sectional curve and the ratio of sagittal to frontal diameter as body type classification indices,4 types of shoulder types were subdivided and verified by variance *** to the clustering result,the Extreme Learning Machine(ELM) method was introduced,and the ELM identification model constructed by MATLAB software was used to identify the shoulder shape *** model had high recognition rate and excellent identification performance,which could provide a new method for human body type identification,and can also broaden the application field of Extreme Learning Machine method.

关键词： 3D Human Body Measurement Shoulder Shape Classification Extreme Learning Machine Identification Model

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Hierarchical carbon nanotubes grown on 3D woven glass fiber preforms for multifunctional structural composites beams 18

Hierarchical carbon nanotubes grown on 3D woven glass fiber ...

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18th European Conference on Composite Materials, ECCM 2018

作者： Turgut, Firat Neje, Ghanshyam Behera, Bijoy Ozden-Yenigun, Elif Cebeci, Hulya Faculty of Aeronautics and Astronautics Istanbul Technical University Istanbul34469 Turkey Faculty of Textile Technologies and Design Istanbul Technical University Istanbul34437 Turkey ITU Aerospace Research Center Istanbul Technical University Istanbul34469 Turkey Department of Textile Technology Indian Institute of Technology Delhi New Delhi110016 India School of Design Textiles Royal College of Art LondonSW7 2EU United Kingdom

ISBN: (纸本)9781510896932

Delamination and poor interfacial properties between matrix and reinforcement have been considered as major problems of laminated composites. They also limit their use in aerospace industry when durable, multifunctional and lightweight materials are of recent demand. In this study, mechanically robust and electrically conductive composite beams are manufactured by combining two innovative approaches such as 3D weaving and production of fuzzy fiber architecture of carbon nanotubes (CNTs) onto 3D preforms. 3D weaving enables the manufacturing of delamination-free preforms, while growing vertically aligned CNTs on fibers contributes to the electrical conductivity. Among several studies performed for enhancing the interlaminar properties of laminated composites, this novel approach eliminated the most probable failure as delamination in structural composites and allows to manufacture conductive complex 3D shapes without causing loss of tensile properties. Aligned CNTs (a-CNTs) were first grown by a modified chemical vapor deposition (m-CVD) method onto an I-profile shaped 3D glass fiber woven preforms. Those preforms were then impregnated with epoxy resin by vacuum infusion process (VIP) to form multifunctional 3D I-beam composites. The morphological analysis showed 7.57 μm long CNTs having radially aligned growth on glass fibers. The electrical conductivity of CNTs grown glass fibers measured by 4 point-probe set-up was 4.52×10-2 S/cm, which was a remarkable enhancement of as over non-conductive glass fibers with an order of 106 S/cm. Failure mechanisms subjected to flexural loading was also noted to explore the contribution of CNTs. © CCM 2020 - 18th European Conference on Composite Materials. All rights reserved.

关键词： Carbon nanotubes

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Correction to: Dyeing performance and antimicrobial activity of cellulose-based biomaterials

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Cellulose 2024年第1期32卷 275-275页

作者： Momotaz, Farhana Repon, Md. Reazuddin Prapti, Urnisha Saha Pranta, Arnob Dhar Hasan, Md. Rashedul Department of Fashion Design & Merchandising Mississippi State University Mississippi USA Department of Production Engineering Faculty of Mechanical Engineering and Design Kaunas University of Technology Kaunas Lithuania Department of Textile Engineering Daffodil International University Dhaka Bangladesh Department of Textile Engineering Khulna University of Engineering and Technology Khulna Bangladesh ZR Research Institute for Advanced Materials Sherpur Bangladesh Department of Textile Engineering Mawlana Bhashani Science and Technology University Santosh Tangail Bangladesh Department of Industrial Engineering University of Arkansas Fayetteville USA

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Preliminary study on perceived comfort of car seats: A quantitative approach to visual cues

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Procedia CIRP 2021年 104卷 116-121页

作者： Bastian Quattelbaum Kostas Stylidis Alina Braun Rikard Söderberg Hochschule Niederrhein Faculty Textile and Clothing Technology D-41065 Mönchengladbach Germany Chalmers University of Technology Department of Industrial and Materials Science SE-412 96 Göteborg Sweden Geely Design Global Valdemar Noréns Gata 3 417 55 Göteborg Sweden

The automotive industry is transitioning towards a more digital future - not just the digitalization of the product itself but also the process of customer interaction, such as during the product selection process. In the product selection process, companies are enabled to collect and analyze large amounts of customer and usage data but are also challenged to understand the gathered digital data. In designing physical components, analyzing, and understanding such data can provide a competitive advantage. In gaining deeper insight into the digital selection process of cars and for understanding customers preferences related to perceived comfort of car seats, we applied a visual appearance study by presenting digital information of physical components.

关键词： Perceived Comfort Car Seats Visual Appearance Best-Worst-Scaling

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Extraction and characterization of the structural, chemical, and physical properties of Phyllanthus reticulatus fibers

Next Research

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Next Research 2025年第1期2卷

作者： Faisal Ahmed Md. Reazuddin Repon Arnob Dhar Pranta Kazi Alif Ahmed Md. Jahidul Islam Md. Habibur Rahman Md. Robiul Islam Anik Md. Amir Hossain Kaifu Department of Textile Engineering BGMEA University of Fashion and Technology Dhaka 1230 Bangladesh Department of Textile Engineering Daffodil International University Dhaka 1216 Bangladesh Department of Production Engineering Faculty of Mechanical Engineering and Design Kaunas University of Technology Studentų 56 Kaunas LT-51424 Lithuania ZR Research Institute for Advanced Materials Sherpur 2100 Bangladesh Department of Textile Engineering Mawlana Bhashani Science and Technology University Santosh Tangail 1902 Bangladesh

The potential to replace synthetic materials with natural plant fibers is enormous. The purpose of this extensive research was to identify and outline novel sustainable fibers by extracting from the bark of Phyllanthus reticulatus plants. The present research work shows, Phyllanthus reticulatus fibers have a lot of promise as a greener substitute for synthetic fiber. A 5 % NaOH solution was applied to the plant bark and left at 100 °C for 90 min. The outcomes demonstrated that cellulose made up 60.7 % of the extracted fibers composition. In addition, the content of hemicellulose and lignin was 12.14 % and 16.56 %, correspondingly. The fiber's light weight quality was demonstrated by their low density of 0.80 × 10 3 Kg/m³. The moisture regain and moisture content were 10 % and 9 %, respectively. Confirming the fiber cellulosic nature, FTIR analysis identified and examined the various chemical groups within them. The fibers measured 2.53 nm in crystalline size and exhibited a crystallinity of 71.42 % as per X-ray diffraction ( XRD ). Scanning electron microscopy ( SEM ) provided detailed insights into the surface morphology allowing for a thorough evaluation of the fiber's physical characteristics. Phyllanthus reticulatus fibers are durable, biodegradable and suitable for geotextiles. Their high crystallinity and low density make them ideal for bio-based composites in automotive and construction as well as insulation and packaging .

关键词： Sustainable fiber Eco-friendly textiles Moisture regain Natural fiber Biodegradable

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Green production and consumption of textiles and apparel: Importance, fabrication, challenges and future prospects

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Journal of Open Innovation: technology, Market, and Complexity 2024年第2期10卷

作者： Rahaman, Md. Tareque Pranta, Arnob Dhar Repon, Md. Reazuddin Ahmed, Md. Samin Islam, Tarekul Department of Textile Engineering Mawlana Bhashani Science and Technology University Santosh Tangail 1902 Bangladesh Department of Textile Engineering Daffodil International University Dhaka 1216 Bangladesh Department of Bioproducts and Biosystems School of Chemical Engineering Aalto University Espoo 02150 Finland Department of Production Engineering Faculty of Mechanical Engineering and Design Kaunas University of Technology Studentų 56 Kaunas LT-51424 Lithuania Department of Statistics Mawlana Bhashani Science and Technology University Santosh Tangail 1902 Bangladesh Department of Computing John Moores University Liverpool United Kingdom Department of Materials Science and Engineering King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia ZR Research Institute for Advanced Materials Sherpur 2100 Bangladesh

textile and garments production involves a wide range of steps, beginning with the spinning of fibers into yarn, then manufacturing to fabric and finally, adding value-enhancing treatments like washing, dyeing and finishing to the outfits. Frequently, these manufacturing processes contravene the overarching tenets of environmental viability. Compounded by escalating demand for apparel products, manufacturers exhibit diminished enthusiasm for the implementation of ecologically conscientious and sustainable production methodologies. Therefore, the fast swings in fashion trends and the shortening of vogue cycles are major accelerators for the disruption of ecological balance. In more recent times, a profusion of pioneering initiatives and advancements have been instigated to sustainable remedies within the production and consumption paradigms of the contemporary clothing sector. Moreover, sustainable techniques within the apparel sector encompass not just environmentally friendly supply chain control, but also the facilitation of a cost-effective and socially agreeable production setup. Future considerations and developments in sustainability in spinning, fabric production, wet processing, and garment manufacturing are explored in this review article. It delves into environmental issues and the ways in which modern clothing brands promote sustainable technologies and materials. © 2024 The Authors

关键词： Assessment of life cycle Consumption Production Recycling Sustainable textiles

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Film costume as a visual narrative element;defining the abstract emotions of the film viewer via Plutchik’s wheel of emotions

Textile and Leather Review

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textile and Leather Review 2020年第2期3卷 92-100页

作者： Vojković, Jelena University of Zagreb Faculty of Textile Technology Department od Fashion Design Student of Master’s Programe Theory and Culture of Fashion Croatia

This research is an attempt to try to define the semiotic elements of film costumes that result with certain final feelings of the viewer. Looking through the semiotic theory of both Roland Barthes and Walter Benjamin and the specifics of (theatre and) film costume as a means of influencing the viewer and his/her thoughts, feelings and overall catharsis, the identity of a certain film has been set through an analysis of various elements. Furthermore, it has been noticed that psychological results by one observing a film can be various and lean more on known philosophical and psychological tendencies i.e. Freud’s theories or the ones of M. Merleau-Ponty or Lacan. To make it less verbatim, the example for the analysis that has been chosen is the 1982 science fiction film Bladerunner directed by Ridley Scott. With surreal messages and multi-layered meanings of its visual and audio presentation, it seemed like a perfect starting point for the research of the subconscious mind of the viewer. Finding a non-invasive approach to viewer’s impression, the costume itself could be observed both independently and in correlation with other film elements. By combining the results of all film levels via a visual psychological test by Robert Plutchik, known as Plutchik’s wheel of emotions, it is plain to see that a final impression still lies in a personal analysis. We find a prevalence of certain thoughts that lead the viewer to change his/her perception and, ultimately, to catharsis. © 2021 Seniko studio Ltd. All Rights Reserved.

关键词： Philosophical aspects

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