/soft/sort 04/Information- 1280 . html
catalogue
Chapter I Preface 1
Chapter II Literature Review 3
2. 1 Utilization of lignin 3
2. 1. 1 Application of lignin as surfactant 3
2. 1. 1. 1 concrete water reducer 3
2. 1. 1.2 petroleum production additive 3
2. 1. 1.3 water treatment agent 4
2. 1.2 Application of Lignin in Polymer Field 4
2. 1.2. 1 adhesive 4
2. 1.2.2 Plastics 5
2. 1.2.3 Polymerization of Lignin and Epoxy Compounds 5
2. 1.3 Application of lignin in agriculture and forestry 6
2. 1.3. 1 as a plant growth regulator 6
2. 1.3.2 as fertilizer 6
2. 1.3.3 as soil improver 6
2. 1.3.4 as feed additive and practical bacterial nutrient 6
2.2 Research progress of epoxy resin matrix nanocomposites 7
2.2. Preparation method of1epoxy resin-based nanocomposites 7
2.2.2 Action mechanism of epoxy resin-based nanocomposites 8
2.2.3 Research status of epoxy resin-based nanocomposites 8
2.2.4 Study on epoxy resin-based clay nanocomposites 9
Chapter III Propoxylation Modification of Lignin
3. 1 Preface 1 1
3.2 experimental reagents, instruments and methods 12
3.2. 1 main experimental reagent 12
3.2.2 Experimental instruments 12
3.2.3 experimental method 12
3.2.3. 1 acid precipitation alkali lignin 12
Ash removal of lignin 12 precipitated by 3.2.3.2 acid
Modification of 3.2.3.3 Lignin 12
3.2.3.4 ash determination 12
Determination of Hydroxyl and Carboxyl Groups of 3.2.3.5 Phenol 12
3.2.3.6 infrared spectrum 13
3.2.3.7 NMR 13.
3.3 Results and discussion 13
3.3. 1 ash determination result 13
3.3.2 Non-conductive titration results of phenolic hydroxyl and carboxyl groups 13
3.3.3 Effect of reactant ratio on grafting effect 15
3.3.2 infrared spectrum analysis 15
3.3.5 NMR * * vibration spectrogram analysis 17
3.4 Overview of this chapter 20
The fourth chapter is the preparation of lignin-based epoxy resin.
4. 1 Preface 2 1
4.2 Experimental Reagents and Methods 22
4.2. 1 experimental reagent 22
Experimental instrument 23
Experimental method 23
Potassium hydroxide as catalyst 23
4.2.3.2 benzyl triethylammonium chloride as catalyst 23.
4.2.3.3 boron trifluoride ether complex as catalyst 23
4.2.4 Determination of product performance
Infrared spectrum 24
Nuclear magnetic resonance * * * 24
4.3 Results and discussion 24
Effects of different catalysts 24
4.3. 1. 1 potassium hydroxide as catalyst 24
4.3. 1.2 benzyl triethylammonium chloride as catalyst 25
4.3. 1.3 boron trifluoride ether complex as catalyst 27
4.3.2 Infrared Spectrum Analysis of Lignin-based Epoxy Resin 33
4.3.3 NMR spectrum analysis of lignin-based epoxy resin 33
4.4 Overview of this chapter 34
Chapter 5 Development of Lignin-based Epoxy Resin/Montmorillonite Composites 35
5. 1 experimental reagents, instruments and methods 36
5. 1. 1 main experimental reagent 36
5. 1.2 experimental instrument 36
5. 1.3 experimental method 36
5. 1.3. 1 preparation of organic montmorillonite 36
5. 1.3.2 Preparation of lignin-based epoxy resin/nano-montmorillonite composites 37
5. 1.3.3 testing and characterization 37
5.2 Results and discussion 37
5.2. 1 curing agent 37
5.2.2 Analysis of Composite Effect of Lignin-based Epoxy Resin and Organic Montmorillonite 38
5.2.2. 1 Interlayer spacing and structure of untreated montmorillonite (Na-MMT) 38
Analysis of Intercalation Compound Effect of Organic Montmorillonite in 5.2.2.2 39
Analysis of Intercalation Composite Effect of 5.2.2.3 Lignin-based Epoxy Resin and Organic Montmorillonite 39
Analysis of Intercalation Composite Effect of Lignin-based Epoxy Resin and Organic Montmorillonite after Curing in 5.2.2.4 (2000-2000) 41.46543.000000000005
5.2.3 Effect of the content of organic montmorillonite and curing agent on the mechanical properties and water absorption of lignin-based epoxy resin composites 42
Mechanical properties of composite materials
The water absorption of 5.2.3.2 composite is 44.
5.3 Overview of this chapter 45
Chapter VI Conclusion 46
Reference 48