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| ORE7222 | Bonding Theories On Wood Materials | 3+0+0 | ECTS:7.5 | | Year / Semester | Spring Semester | | Level of Course | Third Cycle | | Status | Elective | | Department | DEPARTMENT of FOREST INDUSTRY ENGINEERING | | Prerequisites and co-requisites | None | | Mode of Delivery | Face to face, Lab work | | Contact Hours | 14 weeks - 3 hours of lectures per week | | Lecturer | Prof. Dr. İsmail AYDIN | | Co-Lecturer | None | | Language of instruction | Turkish | | Professional practise ( internship ) | None | | | | The aim of the course: | | The course aims to determine the importance of bonding process in the manufacturing of composite wood products, to compare the bonding process with other joining methods and to define the bonding theories valid for wood materials. |
| Programme Outcomes | CTPO | TOA | | Upon successful completion of the course, the students will be able to : | | | | PO - 1 : | define and explain the importance of bonding process in wood processing industries | 2,3 | 1 | | PO - 2 : | solve the some bonding problems and develop various suggestions to improve the bonding performance in a bonding system | 2,3,4 | 1 | | PO - 3 : | make comparison the between bonding process and other joining methods. | 2,3 | 1 | | PO - 4 : | define the factors effective on the bond strength of wood based panel products | 2,3 | 1 | | PO - 5 : | determine the effects of bond strength on some other mechanical properties of wood based panel products. | 2,3 | 1 | | PO - 6 : | define the bonding theories valid for wood materials | 2,3 | 1 | | PO - 7 : | evaluate the bonding performance via different test methods. | 2,3 | 4 | | 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 | | |
| Bonding process of wood materials and its importance,
Advantages of bonding compared to other joining methods,
Factors affecting the performance of glued joints in wood based panel products,
Relationship between the adhesion and cohesion and effects of these forces on bonding,
Chain structure defined for wood-adhesive bonding system,
Bonding theories valid for wood materials,
Mechanical interlocking theory,
Adsorption theory,
Diffusion theory,
Electrostatic theory,
Covalent chemical bonding theory
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| Course Syllabus | | Week | Subject | Related Notes / Files | | Week 1 | Necessity of bonding process on wood materials | | | Week 2 | Comparison of bonding process with other joining methods / Determining of student homework subjects | | | Week 3 | Attractive forces effective on bonding process, adhesion and cohesion concepts | | | Week 4 | Formation of bonding system in bonding of wood materials | | | Week 5 | Adhesion theories in bonding process (mechanical interlocking theory, wetting theory, diffusion theory, electrostatic theory, covalent chemical bonding theory)
| | | Week 6 | Improving adhesion properties on wood material surfaces | | | Week 7 | Surface tension reducing, surface coating and chemical grafting methods | | | Week 8 | Plasma modification, corona discharge treatment and flame ionization methods | | | Week 9 | Mid-term exam | | | Week 10 | Application of adhesion promotion methods to wood surfaces | | | Week 11 | Factors effective on gluing and bonding of wood materials | | | Week 12 | Effects of factors related to wood on bonding | | | Week 13 | Second midterm exam / Student homework presentation | | | Week 14 | Effects of factors related to adhesives on bonding / Effects of factors related to manufacturing conditions on bonding | | | Week 15 | Impregnation process of wood based panel products and its effects on bonding | | | Week 16 | End-of-term exam | | | |
| Method of Assessment | | Type of assessment | Week No | Date | Duration (hours) | Weight (%) | | Mid-term exam | 9 | 22.11.2012 | 1 | 50 | | End-of-term exam | 16 | 17.01.2013 | 1 | 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 | 4 | 14 | 56 | | Laboratuar çalışması | 1 | 5 | 5 | | Arasınav için hazırlık | 4 | 7 | 28 | | Arasınav | 1 | 1 | 1 | | Uygulama | 0 | 0 | 0 | | Klinik Uygulama | 0 | 0 | 0 | | Ödev | 3 | 12 | 36 | | Proje | 0 | 0 | 0 | | Kısa sınav | 0 | 0 | 0 | | Dönem sonu sınavı için hazırlık | 9 | 5 | 45 | | Dönem sonu sınavı | 0 | 0 | 0 | | Diğer 2 | 0 | 0 | 0 | | Total work load | | | 213 |
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