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| OREL5240 | Chemical Modification in Wood and Wood Comp. | 3+0+0 | ECTS:7.5 | | Year / Semester | Spring Semester | | Level of Course | Second Cycle | | Status | Elective | | Department | DEPARTMENT of FOREST INDUSTRY ENGINEERING | | Prerequisites and co-requisites | None | | Mode of Delivery | | | Contact Hours | 14 weeks - 3 hours of lectures per week | | Lecturer | Prof. Dr. Ali TEMİZ | | Co-Lecturer | Prof. Dr. Sibel YILDIZ | | Language of instruction | | | Professional practise ( internship ) | None | | | | The aim of the course: | | The aim of this course to teach the general structure of chemical modification in wood and wood composites, and chemical agents and methods used in wood modidication.
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| Programme Outcomes | CTPO | TOA | | Upon successful completion of the course, the students will be able to : | | | | PO - 1 : | choose and put into practise the techniques required to use miscelleneous chemical agents and methods of chemical wood modification | 2,3,5 | 1,3, | | PO - 2 : | apply the method and control data for regular operation of wood modification process | 5,6,7 | 1,3, | | PO - 3 : | compare miscellaneous wood modification chemicals and methods and, to put into practise them | 2,5,6 | 1,3, | | PO - 5 : | | 1,2,3,9,10 | 1 | | CTPO : Contribution to programme outcomes, TOA :Type of assessment (1: written exam, 2: Oral exam, 3: Homework assignment, 4: Laboratory exercise/exam, 5: Seminar / presentation, 6: Term paper), PO : Learning Outcome | | |
| Concepts of wood and wood composite. Concept of chemical modification. Chemical wood modification methods. Acetylation reactions. Wood-polymer composites. Changes on physical and mechanical properties of wood and wood composites after modification.Their resistance to biological degradation. Characterization of wood surface.Surface modification of wood. Functional groups in wood surface. Plasma treatment. Thermo plasticization of wood surface. Morphologic properties of surface treated wood. |
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| Course Syllabus | | Week | Subject | Related Notes / Files | | Week 1 | The concepts of wood, wood composites and chemical modification. | | | Week 2 | Classification of chemical modofication methods in solid wood, and introduction to them. | | | Week 3 | Acetylation method in solid wood. | | | Week 4 | Commercialized applications of acetylation method in solid wood. | | | Week 5 | Changes on physical and mechanical properties of wood after modification. | | | Week 6 | Changes on biological durability properties of wood after modification. | | | Week 7 | Wood-polymer composites and their properties. | | | Week 8 | Characterization of wood surface.Surface oxidation of wood. Functional groups in wood surface | | | Week 9 | Mid-term exam | | | Week 10 | Plasma treatment. Distribution of extractives. Thermo plasticization of wood surface. Morphologic properties of surface treated wood. | | | Week 11 | Etherification of wood. Use of bifunctional molecules. Benzylation. Use of acids and oxidants. | | | Week 12 | Classification of chemical modofication methods in wood composites, and introduction to them. | | | Week 13 | Student presentations. | | | Week 14 | Commercialized applications of chemical modification methods in wood composites. | | | Week 15 | General repetition and, conclusion of student presentations | | | Week 16 | End-of-term exam | | | |
| 1 | Hill, Callum, 2006; Wood Modification: Chemical, Thermal and Other Processes, John Wiley & Sons, Ltd, London | | | |
| 1 | Hon, D.N.S., ve Shairishi, 2001, Wood and Cellulosic Chemistry, Marcel Dekker Inc. | | | 2 | Hon, D.N.S., 1996, Chemical Modification of Lignocellulosic Materials, Marcel Dekker, New York. | | | 3 | Rowell, R., editor, The Chemistry of Solid Wood, American Chemical Society Adcances in Chemistry Series 207, USA. | | | |
| Method of Assessment | | Type of assessment | Week No | Date | Duration (hours) | Weight (%) | | Mid-term exam | 9 | 23/11/2021 | 1 | 30 | | Presentation | 13 | | 0,5 | 20 | | End-of-term exam | 16 | 21/12/2021 | 1,5 | 50 | | |
| Student Work Load and its Distribution | | Type of work | Duration (hours pw) | No of weeks / Number of activity | Hours in total per term | | Yüz yüze eğitim | 3 | 14 | 42 | | Sınıf dışı çalışma | 3 | 14 | 42 | | Laboratuar çalışması | 3 | 14 | 42 | | Arasınav için hazırlık | 3 | 3 | 9 | | Arasınav | 2 | 1 | 2 | | Ödev | 3 | 3 | 9 | | Kısa sınav | 2 | 1 | 2 | | Dönem sonu sınavı için hazırlık | 25 | 2 | 50 | | Dönem sonu sınavı | 2 | 1 | 2 | | Total work load | | | 200 |
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