Sökning: onr:"swepub:oai:research.chalmers.se:27b83189-4632-476e-a078-708f3421ab52" > Processing and prop...
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000 | 03993nam a2200433 4500 | |
001 | oai:research.chalmers.se:27b83189-4632-476e-a078-708f3421ab52 | |
003 | SwePub | |
008 | 201020s2020 | |||||||||||000 ||eng| | |
020 | a 9789179053963 | |
024 | 7 | a https://research.chalmers.se/publication/5199432 URI |
040 | a (SwePub)cth | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a dok2 swepub-publicationtype |
072 | 7 | a vet2 swepub-contenttype |
100 | 1 | a Forsgren, Lilian,d 1990u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)lilianf |
245 | 1 0 | a Processing and properties of thermoplastic composites containing cellulose nanocrystals or wood-based cellulose fibres |
264 | 1 | a Gothenburg,c 2020 |
338 | a electronic2 rdacarrier | |
520 | a Cellulose nanocrystals (CNC) were surface modified with dialkylamines to increase the compatibility between the CNC and the polymeric matrix, and promising results were obtained, with a 300 % stiffness increase when the mixed dispersion was compression moulded on a laboratory scale. The manufacturing process was up-scaled using water-assisted mixing in a twin-screw extruder (TSE) followed by a second compounding step and injection moulding (IM). The composites were successfully produced using conventional melt-processing techniques but these did not show the same improvement in mechanical performance, probably due to the formation of CNC aggregates. There were indications of network formation when CNC was added, especially in the case of surface-modified CNC. Cellulose fibres and thermomechanical pulp were used as reinforcement in similar types of polymer matrices and the mixtures were similarly processed by TSE and IM. These materials were characterized with regard to appearance and durability. The discoloration of the composites due to excessive heat during processing did not significantly affect their mechanical properties, and the addition of the cellulose-based reinforcement to the polymer did not reduce its resistance to thermo-oxidative degradation compared to that of the pure matrix. In fact, the resistance to degradation was increased when lignin was present in the reinforcing element, showing a synergistic effect together with the added anti-oxidant. Superior properties were expected for the CNC composites compared to those of the larger cellulose fibre reinforcements, but in continuous production the stiffening effects were similar regardless of reinforcement type. These results confirm that the processing method and properties strongly affect the final properties of the composite. | |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Materialteknik0 (SwePub)2052 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Materials Engineering0 (SwePub)2052 hsv//eng |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Materialteknikx Pappers-, massa- och fiberteknik0 (SwePub)205032 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Materials Engineeringx Paper, Pulp and Fiber Technology0 (SwePub)205032 hsv//eng |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Materialteknikx Bearbetnings-, yt- och fogningsteknik0 (SwePub)205052 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Materials Engineeringx Manufacturing, Surface and Joining Technology0 (SwePub)205052 hsv//eng |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Materialteknikx Kompositmaterial och -teknik0 (SwePub)205022 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Materials Engineeringx Composite Science and Engineering0 (SwePub)205022 hsv//eng |
653 | a Extrusion | |
653 | a Cellulose nanocrystals | |
653 | a Cellulose | |
653 | a Thermal stability | |
653 | a Tensile properties | |
653 | a Wood-based fibres | |
653 | a Injection moulding | |
653 | a Composite | |
710 | 2 | a Chalmers tekniska högskola4 org |
856 | 4 | u https://research.chalmers.se/publication/519943/file/519943_Fulltext.pdfx primaryx freey FULLTEXT |
856 | 4 8 | u https://research.chalmers.se/publication/519943 |
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