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研究生: 歐雷迪
Reddy, Lacchaiahgari Obul
論文名稱: 矽烷/鹼處理竹纖環氧複合材料的吸水率研究
Studies on Water Absorption of Silane Treated Mercerized Bamboo-Epoxy Composites
指導教授: 林建宏
Lin, Chien-Hong
共同指導教授: 楊文斌
Young, Wen-Bin
學位類別: 碩士
Master
系所名稱: 工學院 - 機械工程學系
Department of Mechanical Engineering
論文出版年: 2020
畢業學年度: 109
語文別: 英文
論文頁數: 76
外文關鍵詞: bamboo fiber, Mercerized bamboo, silane treated bamboo, water absorption of composite, mechanical properties of composite
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  • This study is to investigate the effect of silane on water absorption and mechanical properties of unidirectional bamboo fiber reinforced epoxy composites. The untreated, alkali treated and silane treated continuous bamboo fibers were prepared from cutting the nature bamboo culm, and was combined with epoxy to form the composites by resin transfer molding. The basic characteristics of bamboo fiber composites such as density, equivalent diameter, mechanical properties were experimentally measured. Experiments using 5wt% NaOH, 5wt% NaOH+5wt% silane 6341 and 5wt% NaOH + silane 6106 were carried out to improve the water resistant property of the bamboo fiber/epoxy composites. The strength of bamboo fiber was found to decrease with the alkali treatment, and silane treatment increases the strength of the mercerized bamboo fiber. Alkali treatment results in decrease in water absorption by the composite. With silane treatment further reduction is observed. The water resistant is best for the silane 6106 treated mercerized bamboo composite in our study.

    TABLE OF CONTENTS ABSTRACT I ACKNOWLEDGEMENT II LIST OF TABLES VI LIST OF FIGURES VIII CHAPTER 1: INTRODUCTION 1 1.1 Research Purpose 1 1.2 Research Method 2 1.3 Structure of the Thesis 2 1.4 Objectives 2 CHAPTER 2: LITERATURE REVIEW 4 2.1 Thorn Bamboo 4 2.2 Bamboo Fiber Introduction 4 2.3 Bamboo Cell Structure 5 2.4 Continuous Bamboo Fibers 6 CHAPTER 3: EXPERIMENTAL 7 3.1 Bamboo Fiber 7 3.2 Introduction to Alkali Treatment 7 3.3 Sodium Hydroxide 8 3.4 Introduction to Silane 6341 Treatment 8 3.5 Introduction to Silane 6106 Treatment 10 3.6 Introduction to Degassing Equipment 12 3.7 Introduction to Epoxy and Hardener 13 3.8 Mold Release Agent 15 3.9 Composite Material Manufacturing Mold 15 3.10 Epoxy Resin Transfer Injecting System 18 3.11 Hot Press 19 3.12 Composite Material Cutting Machine 20 3.13 Hot Air Circulating Oven 21 3.14 Electronic Balance 22 3.15 Moisture Proof Box 22 3.16 Micro Tensile Testing Machine 23 3.17 Universal Tensile Testing Machine 24 3.18 Strain Indictor and Switch Balance Unit 25 3.19 Moisture Absorption Characteristics of Bamboo Fiber Composite 26 CHAPTER 4: EXPERIMENTAL PROCEDURE 29 4.1 Alkaline Treatment Procedure 29 4.2 Silane 6341 Treatment Procedure 30 4.3 Silane 6106 Treatment Procedure 31 4.4 Tensile Properties of Bamboo Fibers 32 4.4.1 Density Measurement 32 4.4.2 Equivalent Diameter Measurement 32 4.4.3 Tensile Test for Bamboo Fiber Procedure 33 4.4.4 Interfacial Shear Stress Test procedure 33 4.5 Degassing of Resin and Hardener Procedure 34 4.6 Epoxy Resin Transfer Injection System procedure 35 4.7 Measurement of Unidirectional Bamboo Fiber Composite Material 36 4.8 Tensile Test and Three-Point Bending Specimen 36 4.8.1 Tensile Test of unidirectional Bamboo Fiber Composite 37 4.8.2 Three-Point Bending of Unidirectional Bamboo Fiber Composite Material 39 CHAPTER 5: RESULTS AND DISCUSSIONS 42 5.1 Bamboo Fiber Physical and Mechanical Properties 42 5.1.1 Physical Properties of Bamboo Fibers 42 5.1.2 Mechanical Properties of Bamboo Fibers 44 5.2 Tensile and Bending of Bamboo Fiber Composite 46 5.3 Strength of Bamboo Fibers 48 5.4 Unidirectional Bamboo Fiber Composites 49 5.5 Tensile Strength and Modulus of Composites 51 5.6 Flexural Strength and Modulus of Composites 52 5.7 Water Absorption Testing 53 5.8 Fracture Situation of Bamboo Fiber Composite 55 5.9 FIB Shooting Results 58 CHAPTER 6: CONCLUSIONS 60 REFERENCES 62 APPENDIX 63

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