The Effects of Silica Nanoparticles in Toughened Epoxy Resins and Fiber-Reinforced Composites

Stephan Sprenger

The Effects of Silica Nanoparticles in Toughened Epoxy Resins and Fiber-Reinforced Composites

2015

182 Seiten

Format: PDF, Online Lesen

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ISBN: 9781569906286

 

Table of contents

6

Short Summary

11

Kurzzusammenfassung

12

1. Introduction

13

1.1. Motivation

13

1.1.1. References

13

1.2. Objectives and structure

14

2. State-of-the-art of the science and technology

15

2.1. Manufacturing technologies for fiber-reinforced composites

15

2.1.1. Prepreg methods

16

2.1.2. Filament Winding

17

2.1.3. Pultrusion

18

2.1.4. Injection processes via a mold

18

2.1.5. Infusion processes via a vacuum bag

20

2.1.6. References

21

2.2. Fiber reinforcements for epoxy resin systems

22

2.2.1. Woven fabrics

22

2.2.2. Unidirectional fabrics

23

2.2.3. Multiaxial fabrics

24

2.2.4. Preforms

24

2.2.5. Fiber Sizing

25

2.2.6. References

26

2.3. Epoxy resin systems for fiber-reinforced composites

27

2.3.1. Epoxy resins

27

2.3.2. Curing agents for epoxy resins

29

2.3.3. Epoxy resin systems

31

2.3.4. References

32

2.4. Toughening of epoxy resins

33

2.4.1. Differentiation between toughening and increasing flexibility

33

2.4.2. Reactive liquid rubbers

33

2.4.3. Core-shell rubber particles

35

2.4.4. Thermoplastic particles

36

2.4.5. Self-organizing block copolymers

37

2.4.6. References

38

2.5. Modification of epoxy resins with SiO2 nanoparticles

40

2.5.1. SiO2 nanoparticles

40

2.5.2. Property improvements of cured bulk resin systems

43

2.5.3. Property improvements of cured bulk hybrid resin systems

44

2.5.4. Property improvements of fiber-reinforced composites

46

2.5.5. References

50

3. Results and Discussion

53

3.1. Property improvements of epoxy resins modified with SiO2 nanoparticles

53

3.1.1. Abstract

53

3.1.2. Introduction

53

3.1.3. Discussion

56

3.1.4. Conclusions

67

3.1.5. References

68

3.2. Property improvements of epoxy resins modified with SiO2 nanoparticles and elastomers (hybrid systems)

71

3.2.1. Abstract

71

3.2.2. Introduction

71

3.2.3. Discussion

74

3.2.4. Conclusions

87

3.2.5. References

88

3.3. Property improvements of fiber-reinforced composites based on epoxy resins modified with SiO2 nanoparticles

91

3.3.1. Abstract

91

3.3.2. Introduction

91

3.3.3. Discussion

94

3.3.4. Conclusions

106

3.3.5. References

107

3.4. Property improvements of fiber-reinforced composites based on epoxy resins modified with SiO2 nanoparticles and elastomers (hybrid systems)

111

3.4.1. Abstract

111

3.4.2. Introduction

111

3.4.3. Discussion

115

3.4.4. Conclusions

128

3.4.5. References

128

3.5. Carbon fiber-reinforced composites with epoxy resin modified with reactive liquid rubber and SiO2 nanoparticles

133

3.5.1. Abstract

133

3.5.2. Introduction

133

3.5.3. Experimental

137

3.5.4. Results and discussion

140

3.5.5. Conclusions and outlook

158

3.5.6. References

159

4. Summary and outlook

162

4.1. Summary and outlook

162

4.2. Zusammenfassung und Ausblick

164

5. Bibliography

168

 

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