臺灣博碩士論文加值系統

自 1950 年以來，已經製造了超過 83 億噸塑料，並且需要幾個世紀才能分解。因此，未來的可持續發展需要可生物降解的材料。利用來自農業和食品加工業的有機廢物和植物生物質作為生產原料是實現可持續和循環經濟的一種途徑。近來，近來利用長生菌絲的粘性和快速生長來製備多功能材料。本研究的主要目的是利用食品加工有機廢棄物，包括豆漿和廢茶葉，作為原料，接種少孢根黴菌，製成生物複合材料。製備的生物複合材料會隨者乾燥溫度和組成的變化以改變其機械性能。豆漿和廢茶葉是可再生原料，可在當地大量供應。它們不與糧食和農業資源競爭，並且可以以合理的成本獲得。此外，它們的增值可以防止不適當的廢物處理相關的環境污染。結果表明，本研究開發的生物複合材料具有與聚苯乙烯相當的力學性能，EPS 抗彎強度介於 0.07 -0.69 MPa ，本實驗研究出的菌絲複合材料強度則為0.06-0.58 MPa之間，且不含化學粘合劑，可作為一種新型複合材料。

Synthetic plastic decomposes over hundreds of years and have hazardous properties that may impair the healthy and environment. .Therefore, the use of biodegradable and environmentally friendly raw materials is the right choice in order to fulfill the economic circulation of sustainable development. The stickiness and rapid growth of fungal mycelium have recently been used to prepare functional plates. The main goal of this research is to use food processing organic wastes, including soybean pulp and spent tea leaves, as raw materials with inoculation of Rhizopus oligosporus to make bio-plywood. The prepared mycelium-based bio-composite change their mechanical properties with drying temperature and composition.Soybean pulp and spent tea leaves are renewable raw materials that can be provided in large quantities locally. They do not compete with food and agricultural resources and can be obtained at reasonable costs. Additionally, their valorization can prevent the environmental pollution associated with inappropriate waste treatment. The results show that the mycelium-based bio-composite developed in this study has mechanical properties comparable to polystyrene and does not contain chemical binders, The flexural strength of EPS is between 0.07-0.69 MPa, and the strength of the mycelial composite material studied in this experiment is between 0.06-0.58 MPa. which can be used as a new type of composite materials.

Table of contents

摘要 i
Abstract ii
Table of contents iii
List of tables v
List of figures vi
Chapter 1. Introduction 1
1.1 Plastic usage soars due to the COVID-19 1
1.2 Mycelium composite is an NFPC (natural fiber polymer composite) 3
1.3 The main component of the mycelial cell wall 5
1.4 Rhizopus oligosporus is a fast-growing Rhizopus species 6
1.5 Green cycle of mycelial composites 8
1.6 Commercial applications of mycelial composites 9
1.7 Mycelium Packaging Market and Estimated Market 11
1.8 The product cycle estimated in this experiment 12
Chapter 2 13
2.1 Experimental reagents and materials 13
2.2 Experimental instruments 13
2.3 Stock substrate for culturing mycelium 14
2.4 Preparation of Mycelium Composites and Sample 14
2.4.1 Culturing mycelial complex 14
2.4.2 Prepare the mycelial composite to be tested 14
2.5 Water absorption test 15
2.6 FTIR 15
2.7 Flexural tests 16
2.8 Compression test 17
2.9 Biodegradable test 17
Chapter 3 Results and discussion 18
3.1Mycelium composite appearance 18
3.2.SEM analysis 20
3.3 Growth rate 22
3.4.Density of mycelial composites 23
3.5.Water absorption test 24
3.6 FTIR 25
3.7.Flexural tests 27
3.7.1 Flexural modulud 27
3.7.2 Flexural strength 28
3.8 Compression test 29
3.9 Biodegradable test 31
Chapter 4. Conclusion 39
References 40

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