Kinetic Analysis and Characterization of Epoxy Resins ... - FedOA

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Experimental 66 • Emergency: red light, informing an out of order working of the prototype. On the control panel, there is a display, on which the main parameters of the microwave oven, useful for the automatic cycle are visualized. There are a couple of buttons, the first for opening the pages of the display and the second for changing the current value of the operative parameters. Before programming the cycle is necessary to initialize the oven. The initialization occures when the start cycle button is pushed and enables the determination of the movement limits. The tray goes inside the cavity, until it reaches the maximum limit, then the tray goes out assuming the position for the sample load. The prototype is provided of an emergency stop button for safety reason, according to EN 60947-5-1 standard. 2.2.5 Automatic Cycle and Parameters Selection A window, that resumes all the parameters of the automatic cycle, appears on the display after initialization process. All the parameters can be selected using the buttons < and > 5 . These buttons enable the switching from one page to another. The parameters can be modified pushing the + and – buttons, on the corresponding page. The parameters are: • Tray movement: in this page, the operation of the oven with moving or immovable tray, and therefore in dynamic or static conditions, can be chosen; • Number of seconds with immovable tray: the time of microwave radiation with immovable tray can be set in this page. The sample is placed under the waveguide for a time between 1 up to 9999 s; 5 Placed on the sides of the display. 66
Experimental 67 • The number of tray passages in MW region: if the oven operates with moving tray, the number of passages under MW region can be selected in this page. This value is shown on the display of the main window. On the left side the current passage is visualized, while on the right side there is the total number of passages. The number of passages must be included between 1 and 50; • Tray velocity in MW region: in this page the tray speed through the MW region can be set. This velocity must be a percentage of the maximum speed, that is equal to 560 cm/min; • Tray velocity in IR region: the tray speed under IR lamp can be selected in the same way of the MW tray velocity; • Microwave radiation: in the main window the power [W], selected by the user, is shown. The power can be switched from 500 W up to 2000 W with a discrete step of 500 W. This is possible opening the power window; • Infrared heating: in the main window the activation on or off of IR radiation is displayed, it is also possible to change this value opening the IR page. On the main window the velocity of the tray through IR region is also indicated; • Air temperature: on the left side of the main window the effective air temperature [ ◦ C] circulating in the cavity is shown, while on the right side there is the value selected by the user. Opening the page corresponding to the air temperature, it is possible to modify this value in a range from 20 up to 80 ◦ C, using the + and – buttons. Selected all the parameters the automatic cycle can be started, pushing the corresponding button. A green light appears in this button during the whole 67
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UNIVERSITA’ DEGLI STUDI DI NAPOLI
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3 I thank all the lecturers of PhD
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5 Microwaves are electromagnetic ra
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CONTENTS 7 1.8.1 DielectricProperti
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CONTENTS 9 4 Conclusions and Outloo
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LIST OF TABLES 11 3.2 Average value
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List of Figures 1.1 Diglycidylether
Page 15 and 16: LIST OF FIGURES 15 2.23 Onset tempe
Page 17 and 18: LIST OF FIGURES 17 3.38 Comparison
Page 19 and 20: Introduction 19 cannot be melted an
Page 21 and 22: Introduction 21 • bismaleimides;
Page 23 and 24: Introduction 23 cold solders, casti
Page 25 and 26: Introduction 25 Average Properties
Page 27 and 28: Introduction 27 In Figure 1.4 n can
Page 29 and 30: Introduction 29 ducts and it genera
Page 31 and 32: Introduction 31 tween current-carry
Page 33 and 34: Introduction 33 that describe the p
Page 35 and 36: Introduction 35 1.3.5 Lorentz Force
Page 37 and 38: Introduction 37 Figure 1.11: Electr
Page 39 and 40: Introduction 39 Even microwaves can
Page 41 and 42: Introduction 41 production requirem
Page 43 and 44: Introduction 43 fect of the electro
Page 45 and 46: Introduction 45 following different
Page 47 and 48: Introduction 47 Debye equations bas
Page 49 and 50: Introduction 49 Although these mode
Page 51 and 52: Introduction 51 materials that have
Page 53 and 54: Chapter 2 Experimental In this chap
Page 55 and 56: Experimental 55 Characteristic Note
Page 57 and 58: Experimental 57 If the oven is used
Page 59 and 60: Experimental 59 In monomodal applic
Page 61 and 62: Experimental 61 Figure 2.5: Right s
Page 63 and 64: Experimental 63 Figure 2.8: Front v
Page 65: Experimental 65 regardless of the a
Page 69 and 70: Experimental 69 Figure 2.11: Surfac
Page 71 and 72: Experimental 71 Figure 2.12: Repeti
Page 73 and 74: Experimental 73 From the Figure 2.1
Page 75 and 76: Experimental 75 in the centre of th
Page 77 and 78: Experimental 77 not read the water
Page 79 and 80: Experimental 79 Test number 1 2 3 4
Page 81 and 82: Experimental 81 Figure 2.19: Plot o
Page 83 and 84: Experimental 83 2.5 Datalogger This
Page 85 and 86: Experimental 85 same reason a wood
Page 87 and 88: Experimental 87 Material Behaviour
Page 89 and 90: Experimental 89 in function of the
Page 91 and 92: Experimental 91 2.6.3 Influence of
Page 93 and 94: Chapter 3 Results and Discussion Th
Page 95 and 96: Results and Discussion 95 There is
Page 97 and 98: Results and Discussion 97 Figure 3.
Page 99 and 100: Results and Discussion 99 Parameter
Page 101 and 102: Results and Discussion 101 After pr
Page 103 and 104: Results and Discussion 103 of insta
Page 105 and 106: Results and Discussion 105 1. Mecha
Page 107 and 108: Results and Discussion 107 where k
Page 109 and 110: Results and Discussion 109 Kinetic
Page 111 and 112: Results and Discussion 111 Figure 3
Page 113 and 114: Results and Discussion 113 3.3 Comp
Page 115 and 116: Results and Discussion 115 pedestal
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Results and Discussion 117 Tables 3
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Results and Discussion 119 Figure 3
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Results and Discussion 123 t MW [s]
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Results and Discussion 125 simulate
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Results and Discussion 129 t DSC [s
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Results and Discussion 133 Using th
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Results and Discussion 135 forward
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Results and Discussion 141 than the
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Results and Discussion 143 Since ev
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Results and Discussion 145 ditions.
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Results and Discussion 147 3.23 and
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Results and Discussion 149 The T g
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Results and Discussion 151 3.6.1 St
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Results and Discussion 153 Flexural
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Results and Discussion 155 3.7.2 FT
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Results and Discussion 157 identifi
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Results and Discussion 159 This eff
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Results and Discussion 161 Also in
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Conclusions and Outlook 163 degree
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Appendix A A Brief History of Micro
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A Brief History of Microwave Oven 1
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Bibliography [1] W. Callister, “M
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BIBLIOGRAPHY 171 [19] P. I. Karkana
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BIBLIOGRAPHY 173 [34] K. D. V. Pras
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