MATERIALS ENGINEERING

Transcription

1 Tempus Tempus BE-Tempus-JPHES Creation of university-enterprise cooperation networks for education on sustainable technologies MATERIALS ENGINEERING Vineta Srebrenkoska University Goce Delcev - Stip, R.macedonia January, Novi Sad, Serbia 3 rd Course Development Workshop & 2 nd Dissemination conference

2 Written material by Faculty of Technology, University Goce Delcev, Stip, R. Macedonia 1. Materials engineering 2. Composite materials 3. Polymer eco-composite materials 4. Waste treatment in materials engineering 5. End of life treatment of polymer composite materials Case studies: 1. Recycling and recovery of energy from waste polymer composites January, Novi Sad, Serbia

3 COMPOSITE MATERIALS Dimko Dimeski, Vineta Srebrenkoska APSTRACT 1. Basic definitions 2. History 3. Structural elements 4. Selection of composite in terms of constituents as intended 5. Composites comparing with conventional materials References Questions/Answers January, Novi Sad, Serbia

4 POLYMER ECO-COMPOSITE MATERIALS Vineta Srebrenkoska, Gordana Bogoeva Gaceva, Dimko Dimeski, APSTRACT 1. Introduction 2. Natural fibers - reinforcements 3. Polymer matrices for eco composites 4. Аpplied technology for production of eco -composites 5. Application of eco / "green" composites References Questions/Answers January, Novi Sad, Serbia

5 WASTE TREATMENT IN MATERIALS ENGINEERING Vineta Srebrenkoska, Еmilija Fidancevska APSTRACT 1. Introduction 2. ENVIRONMENTAL CONTEXT The extensive effect on the environment is connected to human activities and unrestrained exploitation of natural resources. Examples of such activities can be found through the whole life cycle of a product from raw material extraction, product manufacturing, use of the product to the waste disposal. 1. WASTE CONSIDERATIONS 2. ENVIRONMENTAL AND SOCIETAL CONSIDERATIONS References Questions/Answers January, Novi Sad, Serbia The chain of events resulting in environmental problems

6 END OF LIFE TRETMENT OF POLYMER COMPOSITE MATERIALS Vineta Srebrenkoska, Silvana Krsteva APSTRACT 1. INTRODUCTION 2. POLYMER COMPOSITE MATERIALS Fiber composite is a group of materials with heterogeneous contents. Waste treatment of polymer composites is more complex, compared to recycling of steel and aluminum, since the contain a mixture of materials with a multitude of combinations of fibers and polymer matrices. 3. PRODUCT LIFE CYCLE OF POLYMER COMPOSITE PRODUCTS January, Novi Sad, Serbia

7 END OF LIFE TRETMENT OF POLYMER COMPOSITE MATERIALS 4. METHODS OF END OF LIFE TREATMENT: STATE OF THE ART Options for end of life treatment of composite materials A number of alternatives to treatment of fibre composite waste exist resulting in material and/or energy recovery January, Novi Sad, Serbia

8 END OF LIFE TRETMENT OF POLYMER COMPOSITE MATERIALS 4.1. Influencing factors January, Novi Sad, Serbia

9 END OF LIFE TRETMENT OF POLYMER COMPOSITE MATERIALS A model for treatment of composite waste A generic model has been presented to facilitate planning of the future fiber composite waste handling. The model provides useful information for waste producers as material and product manufacturers and waste receivers. Process properties need to be correlated to the waste properties including information on type of material, size and metallic inserts etc. Process properties we need to know in order to accomplish a cutting process, are capacity, size of end of life product, cutting edge material/hardness etc January, Novi Sad, Serbia

10 END OF LIFE TRETMENT OF POLYMER COMPOSITE MATERIALS The methods are divided into the following groups: a. REUSE b. MECHANICAL MATERIAL RECYCLING c. ENERGY RECOVERY d. COMBINATION OF MATERIAL RECYCLING AND ENERGY RECOVERY OR CHEMICAL RECOVERY References January, Novi Sad, Serbia Questions/Answers 10

11 CASE STUDY: RECYCLING AND RECOVERY OF ENERGY FROM WASTE POLIMER COMPOSITES Vineta Srebrenkoska, Dijana Capeska Bogatinoska The case studies are divided into four groups respect to the included materials January, Novi Sad, Serbia 11

12 CASE STUDY: RECYCLING AND RECOVERY OF ENERGY FROM WASTE POLIMER COMPOSITES 1. Results of the inventory and case studies a) Legislation b) Waste streams c) Material recycling investigation d) Energy recovery investigations e) Combination of material recycling and energy recovery f) Working environment 2. Forming recommendations for material recycling and energy recovery A. Carbon fiber reinforced polymeric composite (CFRP) B. Fiber reinforced polymeric (FRP) sandwich with PVC-core C. Glass fiber thermoset composite, sheet molding compound (SMC) D. Glass fiber thermoplastic composite (GMT) E. Flax fiber thermoplastic composite, PP/Flax January, Novi Sad, Serbia 12

13 CASE STUDY: RECYCLING AND RECOVERY OF ENERGY FROM WASTE POLIMER COMPOSITES 3. Аssessment of the environmental impact Evaluation of environmental impact is made by collecting all data on the emissions and costs, including: - Emissions from the production of carbon fibers; - Costs for mechanical processing - grinding; - Amount of fuel that can be replaced by incineration of polymer composites; - Emissions from incineration of composite materials; - Landfill of ash from incineration January, Novi Sad, Serbia References 13

14 23-26 January, Novi Sad, Serbia 14