Jörg Müssig

Jörg Müssig
Hochschule Bremen · Biomimetics-Innovation-Centre (B-I-C) / The Biological Materials Group

Prof. Dr.-Ing.

About

248
Publications
50,700
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Introduction
Since 2007 Jörg Müssig is Professor of Biological Materials at the Hochschule Bremen - University of Applied Sciences, Bremen, German. He obtained his degree in Mechanical Engineering at the University in Duisburg, Germany in 1995 and his doctorate from Bremen University in 2001. After graduating in 1995 he joined the Faserinstitut Bremen e.V. – FIBRE – where, between 2001 and 2007, he was the leader of the department ‘Bio-based Materials/Sustainability’ till 2007. From 2004 till 2009 he was an appointed member of The Young Academy, Berlin, Germany. His main current research topics are the development of concepts for sustainable materials, bio-inspired materials, natural fibres & natural fibre composites as well as adhesion & interphases.

Publications

Publications (248)
Article
Hemp (Cannabis sativa L.) is a multi-purpose crop that finds applications in technical textile, paper, food, cosmetic and automotive industries. Due to the increasing demand for sustainable fibres, the hemp fibre sector is expected to grow in the future. However, overall information on the effect of agronomic practices on decortication efficiency a...
Article
The Japanese perennial knotweed (Fallopia japonica) is a globally widespread neophyte whose usability is being investigated, e.g., to use knotweed for biogas plants and as a substitute for firewood. The present study investigates the potential of Japanese knotweed for material use. Morphological studies were carried out on the stem cell structures...
Presentation
The present study deals with the development of yarns from cost-effective hemp from a disordered separation process (total fibre line) for the use in composite materials. Yarns from the rotor spinning process and yarns with almost unidirectional fibre orientation in the core (staple fibre yarn) were produced from hemp fibre bundles. Composites in t...
Conference Paper
The present study deals with the development of yarns from cost-effective hemp from a disordered separation process (total fibre line) for the use in composite materials. Yarns from the rotor spinning process and yarns with almost unidirectional fibre orientation in the core (staple fibre yarn) were produced from hemp fibre bundles. Composites in t...
Article
Full-text available
The stinging nettle Urtica dioica L. is a perennial crop with low fertilizer and pesticide requirements, well adapted to a wide range of environmental conditions. It has been successfully grown in most European climatic zones while also promoting local flora and fauna diversity. The cultivation of nettle could help meet the strong increase in deman...
Article
Regeneratcellulosefasern werden aus pflanzlicher Cellulose regeneriert und weisen hinsichtlich ihrer physikalischen und mechanischen Eigenschaften ein interessantes Potenzial auf, um auch in Faserverbundwerkstoffen eingesetzt zu werden. Sie sind biologisch abbaubar und werden derzeit schwerpunktmäßig für die Herstellung von Textilien, Hygieneartike...
Article
Regenerated cellulose fibres are synthesised from plant cellulose and have interesting potential in terms of their physical and mechanical properties for use in fibre composites. They are biodegradable and are currently used mainly for the production of textiles, hygiene articles, filters and paper. Unlike natural fibres, they can be produced in re...
Article
Regenerated cellulose fibres are synthesised from plant cellulose and have interesting potential in terms of their physical and mechanical properties for use in fibre composites. They are biodegradable and are currently used mainly for the production of textiles, hygiene articles, filters and paper. Unlike natural fibres, they can be produced in re...
Article
Full-text available
In this study, the apparent interfacial and interlaminar shear strength (IFSS and ILSS) of single fibres and unidirectional (UD) viscose fibre-reinforced epoxy composites were characterised using different test methods. Microbond and pull-out tests were used to analyse the IFSS of single fibres embedded in epoxy and the transverse tensile test was...
Article
Full-text available
The most common studies in the literature are those analyzing fatigue life under cyclic loading for flax fiber-reinforced composites. A novel type of staple fiber yarn made from flax tow with almost unidirectional fiber orientation and a quasi-unidirectional fabric was developed for composite applications. Additionally, a hybrid material made of fl...
Conference Paper
The presentation will focus on the developments in regenerated cellulose fibre-reinforced composites over the last years. We will provide an overview over their use in current applications and products, the main motivations for their use as well as the advantages and disadvantages compared to natural and other man-made fibres. The range of differe...
Article
The knowledge of the mechanical properties of polymers and other materials is essential for several tasks in the field of materials science, like component design and material development. The tensile test is one method of determining many of the material’s most defining mechanical characteristics. However, the teaching of laboratory experiments ca...
Article
The use of natural fibre-reinforced plastics for higher-stressed applications is currently often limited by the high price of high-quality semi-finished products. Therefore, the present study deals with developing yarns from cost-effective hemp from a disordered separation process (total fibre line) for composite reinforcements. Composites were fab...
Article
Full-text available
This work investigated the impact that the processing of hemp ( C. sativa L.) fibre has on the mechanical properties of unidirectional fibre-reinforced epoxy resin composites loaded in axial tension, and particleboard reinforced with aligned fibre bundles applied to one surface of the panel. For this purpose, mechanically processed (decorticated) a...
Chapter
The authors describe the state of the art in research and development in thermoplastic wool fiber-reinforced composites in the present book chapter. In the beginning, wool and horn's structural property relationships as keratinous, natural composites are summarized. This comparison's main objective is to show the potential of keratinous composites...
Article
Due to good density specific mechanical properties and low carbon footprint, natural fibre-reinforced plastic composites made from fleeces and felts are frequently used as automotive interior parts. The industry targets further mass reduction. Following a biomimetic technology-pull approach, natural fibre-reinforced polypropylene plates with improv...
Chapter
Due to the increasing discussion about sustainable and CO 2 ‐reduced materials, the demand for cellulose‐based fibres as a reinforcing component in thermoplastic composites has increased considerably. Knowledge about the possibilities of modifying fibres for improved adhesion to the plastic matrix is essential in this context. The fibre/matrix adhe...
Article
Die größtmögliche Ausnutzung der Eigenschaften von Fasern ist das Ziel vieler Spinnverfahren. Bislang können die Eigenschaften von Bastfasern in Kurzstapelgarnen für die Verstärkung von Faserverbundwerkstoffen nur unvollständig ausgenutzt werden. Deshalb wird eine neuartige Garnstruktur mit kürzeren drehungsfreien Bastfasern im Garnkern für Halbzeu...
Article
A new type of yarn strudure with shorter twist-free bast fibers in the yarn core for semi-finished products and use in natural fiber-reinforced plastics (NFRP) for structural components subject to higher mechanical loads was developed. The aim was to achieve good mechanical properties of NFRPs whereby the price should be reduced at the same time. T...
Article
Fibrinogen nanofibers hold great potential for wound healing applications since they mimic the native blood clot architecture and offer important binding sites to support fibroblast adhesion and migration. Recently, we introduced a new method of salt-induced self-assembly to prepare nanofibrous fibrinogen scaffolds. Here, we present our results on...
Article
The specimen geometry has a significant influence on the Charpy impact strength. This is often a problem when it comes to the analysis of materials that can only be prepared with a curved shape, or which, like some biological structures, are naturally given in curved form like nutshells. The question repeatedly arises to what extent the curvature i...
Article
Full-text available
The use of natural fibres for components subjected to higher mechanical requirements tends to be limited by the high price of high-quality semi-finished products. Therefore, the present study deals with the development of more cost-effective staple fibre yarns made from flax tow. In the subsequent processing stage, the yarns were processed into qua...
Article
During the COVID-19 pandemic, many educators have been required to offer their courses online. A particular challenge is the implementation of practical laboratory experiments in the field of materials science. The central questions are the following: How can students carry out laboratory experiments at home? How are applications on mobile devices...
Article
Full-text available
Given the vast amount of available research in the area of natural fibre composites, a significant step forward in the development of next-generation plant fibre-based products would be to devise a framework for rational design. The authors use a top-down approach, starting with an example final product to define the product specifications for high...
Article
Full-text available
Based on the knowledge that plant structures often have graded stiffness transitions between strengthening elements and the surrounding matrix, which result in good damping behaviour and high toughness of the plant structure, the fatigue behaviour of composites made from rayon fibre and polypropylene (PP) as a matrix could be enhanced by photochemi...
Article
Due to the increasing discussion about sustainable and CO 2-reduced materials, the demand for cellulose-based fibres as a reinforcing component in thermoplastic composites has increased considerably. Knowledge about the possibilities of modifying fibres for improved adhesion to the plastic matrix is essential in this context. The fibre/matrix adhes...
Article
In the present study, the hybridisation of ductile viscose (Danufil) and stiff basalt fibres was investigated. The aim was to combine the positive properties of both fibre types in an epoxy matrix. Composites (round rods) were produced with a fibre volume fraction of 40% with a pultrusion technique from Danufil, basalt and a mixture of Danufil and...
Article
Full-text available
Hemp (Cannabis sativa L.) is a bast-fiber crop well-known for the great potential to produce sustainable fibers. Nevertheless, hemp fiber quality is a complex trait, and little is known about the phenotypic variability and heritability of fiber quality traits in hemp. The aim of this study is to gain insights into the variability in fiber quality w...
Conference Paper
In addition to the main field of application in textiles and hygiene articles, regenerated cellulose fibres can also be used in composite materials. Compared to natural fibres, regenerated cellulose fibres have reproducible properties and, depending on the area of application, can be adapted to their properties during the production process. The sh...
Conference Paper
As part of a research project (NF-CompPlus), novel yarn structures made of staple fibres from the European disordered line are being developed for use in highly stressed composite materials. Currently, long flax fibres of a high quality, which are suitable for structural and higher loaded components, are very expensive. The high price of these high...
Article
The Multihemp biorefinery concept combines processing systems that, starting from harvesting, transform hemp biomass into a spectrum of marketable intermediate and final products. Hackling loss sorted out during production of long hemp was used for the compounding process to produce hemp fibre-reinforced Polylactide (PLA) granules for the injection...
Article
Toddy palm fruit have an apparent density below 0.8 g/cm³ and offer an interesting lightweight construction potential in polylactide (PLA) composites reinforced with 37 mass-% fibres. Single fibre bundles show similar mechanical properties compared with coir: tensile strength of 240 MPa, Young´s modulus of 3.8 GPa and an elongation at break of 31%....
Conference Paper
The present study deals with the investigation of copy paper in poly (butylene adipate terephthalate)-PBAT and polylactide-PLA composites. Different paper volume fractions, the use of two different compression moulding methods, and a layered composite structure were investigated. Increasing paper content lead to improved tensile characteristics whi...
Conference Paper
In the context of dwindling crude oil resources and increasing environmental awareness, bio-based materials are becoming increasingly important. The use of natural fibres in combination with (bio-based) plastic matrices is therefore an important contribution to protect the environment. The fields of application of natural fibre-reinforced plastics...
Article
The study investigates the use of copy paper in poly (butylene adipate terephthalate)-PBAT and polylactide-PLA composites. The influence of paper volume fraction (21, 30 and 48%) on the void content and the composite properties was analysed by using two different compression moulding methods. An increasing fibre content lead to significantly improv...
Conference Paper
Der vorliegende Beitrag verknüpft die Bereiche additive Fertigung und biologische Struk¬turen in unterschiedlichen Richtungen. Einerseits ermöglicht der Einsatz von additiven Fertigungsverfahren bei der Produktherstellung ein strukturorientiertes Konstruieren, was in der Natur das gelebte Konzept der biologischen Fertigung ist. Andererseits ermögli...
Article
Full-text available
Hemp is a sustainable and environmental friendly crop that can provide valuable raw materials to a large number of industrial applications. Traditionally harvested at full flowering for textile destinations, nowadays hemp is mainly harvested at seed maturity for dual-purpose applications and has a great potential as multipurpose crop. However, the...
Presentation
Die vorgestellte Arbeit zeigt einen Ansatz die Schlagzähigkeitseigenschaften cellulosefaserverstärkter Verbundwerkstoffe durch einen gezielten, bioinspirierten Lagenaufbau signifikant zu verbessern. Als biologisches Vorbild hierfür diente das Perikarp der Babassunuss (Orbignya speciosa), das gleichzeitig über eine hohe Härte sowie eine große Zähigk...
Conference Paper
The pericarp from the fruit of the babassu palm Orbignya speciosa provides a good combination of hardness and impact strength which is difficult to achieve in artificial materials, making the babassu nut pericarp a promising source for bio-inspiration. Unnotched Charpy impact tests, Shore D hardness tests and scanning electron microscopy were used...
Preprint
With superior quality, hemp fibres are being more and more widely used for a large number of traditional and innovative industrial applications. The quality of the final products is strongly influenced and determined by the quality of the fibres, which in turn is subjected to agronomic factors, such as genotypes (hemp accessions), growing condition...
Conference Paper
Full-text available
This manuscript describes the effects of alterations in biochemical composition on structural morphology and the mechanical behaviour of elementary and technical fibres of hemp used for composite applications. First, the strength and apparent Young's modulus distribution of technical fibres of hemp of 96 hemp samples, corresponding to 32 different...
Article
Full-text available
This work examines size effects of ductile regenerated cellulose fibres (viscose) with different diameters (11.9, 16.6 and 48.4 μm) as well as their unidirectional epoxy composites reinforced with fibre mass fractions of 20, 30 and 40% (16, 25 and 34% in volume). Viscose fibres were tested at different clamping lengths ranging between 2 and 50 mm....
Article
Full-text available
The mechanical performance of composites made from viscose fibre reinforcement fabrics and PP matrix polymers could be enhanced by photo-chemical surface modification of the viscose fibres. The surface modification was achieved by deposition of UV-polymerized organic thin layers using pentaerythritol triacrylate or diallylphthalate as monomers. The...
Article
Full-text available
To establish injection-moulded, natural fibre-reinforced polymers in the automotive industry, numerical simulations are important. To include the breakage behaviour of natural fibres in simulations, a profound understanding is necessary. In this study, the length and width reduction of flax and sisal fibre bundles were analysed experimentally durin...
Presentation
Full-text available
- FibreShape und seine Varianten sind ein sehr variables Hilfsmittel zur Charakterisierung von Fasern und Partikeln aller Art - Der erfolgreiche Rundtest zeigt, dass das Verfahren bei entsprechender Dokumentation laborübergreifend identische Ergebnisse liefert. - Im Bereich der Probenvorbereitung besteht Optimierungsbedarf: z.B. generische Anleitun...
Article
Full-text available
The present study focuses on a comparison between different cellulose fiber-reinforced thermoplastics. Composites were produced with 30 mass-% lyocell fibers and a PLA or PP matrix with either an injection (IM) or compression molding (CM) process. Significant reinforcement effects were achieved for tensile strength, Young’s modulus, and Shore D har...
Article
The petioles of red rhubarb are load-bearing structures which need to combine sufficient stiffness with high toughness. Although mostly consisting out of water, the petioles showed a remarkable Charpy impact strength, partly based on their beam-like structure: outermost bark fibre bundles provide stiffness and strength, and surround a core reinforc...
Article
Full-text available
This manuscript describes the effects of alterations in biochemical composition on structural morphology and the mechanical behaviour of technical fibres of hemp used for composite applications. First, the strength and apparent Young’s modulus distribution of technical fibres of hemp of 96 hemp samples, corresponding to 32 different hemp accessions...
Chapter
Due to the growing environmental awareness the demand for natural fibres as a reinforcing component in thermoplastic composites has risen considerably. Knowledge about fibre/matrix adhesion in a cellulosic fibre-reinforced plastic is of considerable importance for the design of composites. Unfortunately, there are no standards for many important me...
Conference Paper
This work examines size effects on ductile viscose fibres with different diameters as well as their epoxy composites reinforced with fibre mass fractions of 20, 30 and 40% (16, 25 and 34% in volume). It is investigated to what extent size effects affect the strength and if Weibull statistics may be used for the prediction of strength values when th...
Conference Paper
Thailand, officially the Kingdom of Thailand, is a country in Southeast Asia in which hemp (Cannabis sativa L.) has been cultivated by the Hmong people since a long time. The Hmong is are an ethnic group from the mountainous regions of China, Vietnam, Laos, Myanmar and Thailand. The historical migration of the Hmong starts from China moving southwa...
Article
The present study shows a new approach for the prediction of tensile strength values of compression moulded long cellulose fibre-reinforced brittle polylactide (PLA) composites. For this approach regenerated cellulose fibres (lyocell) of variable fineness were used as reinforcement. Composites with different fibre loadings (17, 26 and 36 vol-%) and...
Article
The use of natural fibres such as flax in composite materials is an expanding market sector. Variability potentially exists at many points in the “plant-composite continuum”. In this study, the influence of i) variety, ii) growth year, and iii) processing technique on the mechanical properties of composites was tested. Ten varieties of flax grown i...
Article
In this study, the impregnated fibre bundle test, a common method used by carbon and glass fibre manufacturers to determine the properties of fibres used in composites, was adapted for natural fibres and validated by a round robin test on one type of natural fibres, namely flax fibres. Five European laboratories have carried out in parallel the imp...
Article
Here we investigate the mechanical properties and structural design of the pericarp of the green coconut (Cocos nucifera L.). The pericarp showed excellent impact characteristics, and mechanical tests of its individual components revealed gradients in stiffness, strength and elongation at break from the outer to the inner layer of the pericarp. In...
Article
In commercial injection moulding simulation software only tools for glass fibre-reinforced thermoplastics exist, but not for natural fibres. In our research, we adapted a simulation software for sisal fibre-reinforced polypropylene. To evaluate our simulation results, three experimental methods, to measure fibre orientation are compared to each oth...
Article
Artickle in chinese, Title and abstract also in English. Scanner-based image analysis is of increasing importance for the measurement of fibre width and length. For length measurements on fibres in mm-scale no calibration standards are available on the market. To close this gap, the idea to conduct this round robin test was born within the working...
Article
Full-text available
The scatter in tensile properties induced by the determination and calculation method of the cross-sectional area (CSA) of bast fibre bundles is almost as high as the scatter found in the literature. Different methods (light microscopy, high resolution flat-bed scanning, and laser-based fibre dimensional analysis) were applied to exactly the same f...
Conference Paper
Full-text available
The influences of fibre loading, fibre orientation, fibre length and voids on the mechanical characteristics of lyocell fibre-reinforced polylactide (PLA) composites with a fibre loading of 20, 30 and 40 mass-% were analysed. Composites were produced via compression moulding (CM) and injection moulding (IM). An increasing tensile strength was obser...
Article
The present study focuses on the reprocessing behaviour of recycled injection moulded polylactide (PLA) composites. The composites are reinforced with regenerated cellulose fibres (lyocell) of variable fineness and a fibre mass content of 30%. They were reprocessed up to three times. The influence of reprocessing on the fibre length distribution an...
Conference Paper
Full-text available
> Keine Kalibrierstandards für Längenmessungen im mm-Bereich verfügbar. > Rundtest 2014/15 erfolgreich abgeschlossen: - laborübergreifende Harmonisierung und Sicherstellung einheitlicher Messergebnisse. - Teilnehmer konnten Messgenauigkeit ihres Systems mit anderen Laboren vergleichen. - Alle gültigen Messwerte lagen sehr eng beieinander: ± 11...
Article
Scanner-based image analysis is of increasing importance for the measurement of fibre width and length. For length measurements on fibres in mm-scale no calibration standards are available on the market. To close this gap, the idea to conduct this round robin test was born within the working group ‘fibre analytics’ of the AVK — Industrievereinigung...
Article
Negative size effects are commonly reported for advanced composite materials where the strength of the material decreases with increasing volume of the test specimen. In this work, the effect of increasing specimen volume on the mechanical properties of all-cellulose composites is examined by varying the laminate thickness. A positive size effect i...
Article
Abstract Previously conducted studies showed that UD regenerated cellulose fibre-reinforced thermoset composites can obtain specific Charpy impact strength values in the range of glass fibre reinforced composites. Composites of two different viscose fibre types, each with and without an oily avivage, were investigated. Despite similar mechanical pr...
Article
A method to assess the impact of processing on hemp fibres is presented. A testing process based on acid hydrolysis followed by fractionation, employing a Bauer McNett apparatus, was used to assess the extent to which dislocations formed in hemp fibre that had undergone different degrees of mechanical processing. Using the potential of acid hydroly...
Chapter
The flax fibre composite production chain consists of four main segments, from up- to downstream: (i) agricultural production of flax plants, (ii) the stem-to-fibre converting process, (iii) the converting process in which short and long flax are formed into semi-finished and finished textiles products and (iv) the industrial application of flax in...