Application research and industrial prospects of nanocellulose in the field of conductive films With the rapid development of technologies such as flexible electronics, intelligent wear, and transparent display, traditional conductive film materials such as indium tin oxide (ITO) have gradually exposed their limitations due to their fragility, high costs and tight resources. In recent years, nanocellulose (Nanocellulose) derived from natural cellulose has become a new hot spot in the field of conductive films due to its green and environmentally friendly and excellent performance. Combining it with carbon-based or metal-based conductive materials to prepare conductive films shows great application potential. 1. Introduction to Nanocellulose Nanocellulose is a nano-scale fiber material produced by mechanical, chemical or enzymatic treatment of natural cellulose (such as wood pulp, cotton, agricultural waste, etc.) through mechanical, chemical or enzymatic treatment. It mainly includes three categories: cellulose nanocrystals (CNC): usually obtained by hydrolysis of strong acids (such as sulfuric acid), with high crystallinity and rigidity; cellulose nanofibers (CNF): through high pressure

Nanocellulose: Leading the Green Revolution of Air Purification Materials As air pollution problems become increasingly severe, people's attention to a healthy breathing environment continues to rise. Traditional air purification materials have gradually exposed their limitations in terms of sustainability, filtration efficiency and environmental performance. Nanocellulose, which originates from natural plant resources, is launching a green revolution in the field of air purification materials with its unique structure and excellent performance. 1. Overview of Nanocellulose Nanocellulose is a nano-scale fiber material extracted from plant fibers (such as wood pulp, cotton, bamboo, etc.) or microorganisms. It has the following core characteristics: high specific surface area and porous structure, which is conducive to the adsorption of particulate matter and harmful gases; good mechanical properties and film formation, suitable for the preparation of a variety of filter materials; renewable and degradable, it is an ideal choice for achieving green and low-carbon development. 2. Preparation process dedicated to air purification in order to use nanocellulose

Comparative analysis of efficient application and performance of nanocellulose in the field of water treatment. Introduction With the acceleration of industrialization and the improvement of urbanization, water pollution problems are becoming increasingly serious. Pollutants such as heavy metals, organic dyes and microplastics in the water have posed a threat to the ecological environment and human health. Therefore, the development of efficient, sustainable and environmentally friendly water treatment materials has become an important research direction in the field of environmental engineering. As a green and renewable nanomaterial, nanocellulose has broad application prospects in the field of water treatment due to its high specific surface area, good surface modification ability and biocompatibility. Structural and functional characteristics of two nanocellulose Nanocellulose is generally derived from plant fibers or bacterial cellulose, and is prepared by mechanical dissociation, enzymatic dissociation or chemical oxidation. It mainly includes three types: cellulose nanocrystals (CNC), cellulose nanofiber filaments (CNF) and bacterial cellulose (BC). Its structural features include

Nanocellulose is a high-performance material made from nano- nano-cellulose. It has the following significant features: Natural source, renewable, high strength, light weight, good dispersion and suspension stability♻️ Biodegradable, non-toxic and environmentally friendly 1. What is nanocellulose? Nanocellulose is a natural fiber material with a particle size of 10~100 nanometers and a length of several microns. It is divided into: nanocellulose fibers (CNF), nanocrystalline cellulose (CNC) and bacterial cellulose (BC). Among them, CNF and CNC are most widely used in the industrial field. 2. Preparation method of nanocellulose 1. Mechanical dissociation method (high pressure homogenization) breaks cellulose raw materials into nanoscale sizes through high pressure, which is suitable for large-scale production. ✅ Advantages: Green and environmentally friendly, chemically pollution-free ⚠️ Disadvantages: Energy consumption

Against the backdrop of rapid development of wearable electronic devices, smart textiles, bendable displays and flexible energy storage systems, traditional rigid batteries can no longer meet the multiple needs of lightness, deformability, environmental protection and high performance. Flexible batteries are born as the next generation of energy carriers. Nanocellulose, due to its unique structure and performance, is becoming one of the new materials for building key components of flexible batteries. 1. Advantages of nanocellulose adaptation. The attribute characteristics of flexible batteries contribute to flexible batteries. High flexibility ensures that the battery works stably in bending and stretching. Renewable and biodegradable in green and environmentally friendly, reduces the impact of electronic waste on the environment. High specific surface area and porous structure provide more active sites, which is conducive to the rich surface functional groups of ion/electron transmission. Easy to chemical modification or composite conductive materials have excellent film formation. It can be used as an electrolyte carrier, current collector or separator material. 2. Nanocellulose is

Research on the molecular design, release mechanism and clinical transformation of nanocellulose-based drug sustained release carrier 1. Structural characteristics of nanocellulose and the molecular basis of drug loading 1.1 The crystal structure of nanocellulose and the drug-carrying ability of surface chemical nanocellulose is closely related to its crystal structure and surface chemical groups: cellulose Iβ crystal form (mainly present in plant-source nanocellulose): has a highly ordered hydrogen bond network, suitable for physical adsorption of drug molecules amorphous regions (accounting for 30-50% of cellulose nanofibers): can be used as a reservoir for drug embedding, and increase drug loading volume. Surface functional groups: hydroxyl group: can be covalently connected by esterification and etherification reaction (introduced by TEMPO oxidation): enhance water solubility and use it to release sulfate groups (acid hydrolysis residue): load cationic drugs through electrostatic action Table 1: Comparison of physical and chemical properties of different nanocelluloses Cellulose nanocrystalline cellulose nanofiber nanofiber nanofiber nanofiber nanonitrogen nanonitrogen nanofiber nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitrogen nanonitro

1. Overview TEMPO oxidation method is a highly efficient and highly selective nanocellulose preparation technology, which is widely used in the preparation of carboxylated nanocellulose (TOCN). By selective oxidation of the primary hydroxy group at C6 position in natural cellulose molecules, carboxyl functional groups are introduced, so that cellulose has better dispersibility, reactive activity and application functions. 2. Raw materials and pretreatment materials: Pretreatment steps for natural cellulose such as wood pulp, cotton pulp, bamboo pulp, agricultural waste: bleach and remove lignin, improve purity and reaction efficiency, weigh it after drying, prepare reaction 3. Oxidation reaction process parameters (take 1 gram of dry cellulose as an example) The amount of components is used as TEMPO0.016 g (0.1 mmol) catalyst, and start the free radical reaction NaBr0.1 g (1 mmol) synergistic catalysis to improve reaction efficiency N

Recently, my country's scientific research team has made important progress in the field of nanocellulose thermal performance research, and has successfully improved the thermal stability and thermal conductivity of nanocellulose through chemical modification and composite technology, opening up a new path for its application in high-temperature environments. This breakthrough is expected to accelerate the innovative development of green materials and promote the transformation of multiple industries toward environmental protection and sustainable directions. Breakthrough Progress: High temperature resistance and high thermal conductivity nanocellulose are introduced. As a renewable bio-based material, nanocellulose has the advantages of lightweight, high strength and degradability, but its insufficient thermal stability (the traditional decomposition temperature is less than 300°C) limits its application in the field of high temperature. In this study, scientists successfully increased the thermal decomposition temperature of nanocellulose to above 350°C through surface chemical modification (such as phosphorylation, silanization) and nanocomposite technology (combined with graphene, boron nitride and other materials), and optimized its thermal conductivity to make it in electronic and construction

# Mechanical properties of nanocellulose and their application prospects## 1. Introduction Nanocellulose (Nanocellulose) is an emerging bio-based nanomaterial, and has attracted widespread attention for its excellent mechanical properties. It mainly includes cellulose nanofibers (CNF), cellulose nanocrystals (CNC) and bacterial nanocellulose (BNC). It has advantages such as high strength, high modulus, low density and biodegradability, and has shown great potential in composite materials, flexible electronics, aerospace and other fields. This paper will explore the structural characteristics, enhancement mechanism and application prospects of nanocellulose from the perspective of mechanical properties. ## 2. Mechanical properties of nanocellulose### 2.1 The mechanical properties of high-strength and high-modulus nanocellulose are far superior to those of traditional cellulose materials. The theoretical elastic modulus of its single fiber can reach 150 GPa, and the tensile strength exceeds 2-3 G

1. Structural-activity relationship of hydroxyl groups on the surface of nanocellulose The distribution and reactive activity of hydroxyl groups on the surface of nanocellulose is closely related to its crystal structure. Through X-ray diffraction (XRD) and solid-state nuclear magnetic resonance (ssNMR) studies, it was shown that: 1.1 The hydroxyl groups affected by the crystal structure of CNC (cellulose nanocrystals) are mainly distributed in the (110) and (1-10) crystal planes, the difference in hydroxyl density of different crystal planes can reach 20-30% for every 10% increase in crystalline degree, the surface hydroxyl reaction activity is reduced by about 15%.1.2 Characteristics of hydrogen bond networks intramolecular hydrogen bond (O3-H...O5) bond energy is about 25 kJ/mol intermolecular hydrogen bond (O6-H...O3) bond energy is about 20 kJ/mol hydrogen bond dissociation barrier in the range of 80-120℃. 2. In-depth study of chemical modification mechanisms 2.1 Kinetic characteristics of esterification reaction Acetylation reaction is 0.015 at 60℃.