As an emerging bio-based material, nanocellulose has received widespread attention in recent years due to its unique physical, chemical and mechanical properties. Nanjing Tianlu Nano Technology Co., Ltd. is a high-tech company specializing in the green preparation, research and development and application of nanocellulose. Dedicated to the production, research and development and sales of nanocellulose series products, as well as commercial solutions for the promotion of nanocellulose. And create brand products, pursue better services, and help customers maintain competitive advantages in the fierce market environment. Its properties include a wide range of sources, diverse preparations, biodegradable, safe and non-toxic, making it have wide application prospects in many fields such as enhancement, toughening, conductivity, and electromagnetic shielding. The following article will review the preparation method of nanocellulose and its application research progress in different fields. Preparation Methods of Nanocellulose There are various methods for preparing nanocellulose, mainly including acid hydrolysis, mechanical crushing and biological methods. Acid hydrolysis method: this recipe

‌Nanocellulose has a wide range of applications in preparation, mainly including the following aspects: ‌Biomedicine‌: Nanocellulose fibers have the characteristics of strong biocompatibility, good biodegradability, and high surfactivity, so they are widely used. in the field of biomedicine. It can be used to prepare medical materials such as artificial blood vessels, tissue repair and regeneration stents, and can also be used as a drug controlled release carrier to control the drug release rate and improve the drug treatment effect. In addition, nanocellulose fibers can also be modified by fluorescent dyes for cell imaging and diagnosis. Food Safety: In food processing, nanocellulose fibers are used to prepare food plastic wrap, antibacterial packaging materials, and clear alcohol. agent and juice turbidity agent, etc. Food plastic wrap prepared from nanocellulose fiber has good breathability, moisturizing and antibacterial properties, which can effectively extend the shelf life of food. ‌Environmental Protection‌: Nanocellulose is also important in the field of environmental protection

Research on surface modification and functionalization of cellulose nanocrystals (CNCs) is an important direction in the current field of nanomaterials. Since the surface of cellulose nanocrystals is rich in hydroxyl groups, its chemical activity is high, it can be modified and functionalized through various methods, thereby improving its dispersibility, hydrophilicity, interface compatibility and other properties, making it in many fields The application potential has been greatly improved. 1. Surface modification principle of cellulose nanocrystals The surface of CNC has a large number of hydroxyl groups (–OH), and these functional groups are key sites for surface modification. Introducing new functional groups through chemical reactions can impart specific physical and chemical characteristics to CNC, including hydrophobicity, conductivity, optical activity, etc. The objectives of surface modification include: 1. Improve dispersion: especially in non-polar organic solvents or polymer matrix. 2. Enhanced interface compatibility: Improved and base in composite materials

Cellulose nanocrystals (CNC), nanocellulose (CNF) and microcrystalline cellulose (MCC) are materials of different forms extracted from cellulose. They are different in terms of structure, preparation method, size, characteristics and applications. . The following is a detailed comparison from several aspects: 1. Definition and definition of structural cellulose nanocrystals (CNC, Cellulose Nanocrystals): CNC is a rigid and highly crystalline nanometer extracted from natural cellulose through chemical or enzymatic methods. Crystal part. Structure: highly ordered crystalline regions in cellulose chains with rod-shaped or needle-shaped morphology. Size: Diameter 5-20 nm, length 100-300 nm, high crystallinity (>80%). Nanofibrils (CNF, Cellulose Nanofibrils) definition: CNF is the deconstruction of cellulose into

Nanofibers are an important nanomaterial and have attracted much attention due to their high specific surface area, excellent mechanical properties and wide application potential. The preparation of nanofibers by biological methods has the advantages of green environmental protection, low energy consumption and high controllability. Natural resources and biotechnology such as microorganisms, plants or biological enzymes are often used to achieve the preparation of nanofibers. The following is a detailed introduction from the methods, principles and specific steps. 1. Main methods for biological preparation of nanofibers 1. Bacterial cellulose preparation method Bacterial cellulose (BC) is a nanofiber material produced by specific bacteria (such as Bacillus Acetococcus) through the biosynthesis pathway. Principle: Bacteria convert carbon sources such as glucose into bacterial cellulose and secrete them into the culture medium in the form of nanofibers. Advantages: The fiber has high purity, uniform size, excellent mechanical properties, and is suitable for direct use or further processing. Preparation steps: strain culture

The preparation of cellulose nanocomposite coatings mainly relies on the high specific surface area and surface activity of nanocellulose, which can form a uniform dispersion system with various functional materials (such as polymers, metal oxides or carbon-based materials) through specific The coating technology prepares composite coatings to ultimately achieve the required functionality (such as barrier properties, antibacterial properties, electrical conductivity, etc.). 1. Preparation steps for cellulose nanocomposite coating 1. Material preparation nanocellulose raw materials: Cellulose nanocrystals (CNCs), cellulose nanofibers (CNFs) or bacterial cellulose (BC), and choose their form according to your needs. and purity. Functional materials: Select functional additives according to the specific application, such as: polymers (PVA, PLA, epoxy resin, etc.) to enhance adhesion and mechanical properties; inorganic nanoparticles (TiO₂, ZnO, SiO₂) to enhance barrier properties, antibacterial properties or Optical properties; graphene/carbon nanotubes, confer conductivity and heat

Nanocellulose is a nano-scale material derived from natural cellulose. Due to its excellent mechanical properties, lightweight, high specific surface area and environmentally friendly characteristics, it has received widespread attention in the field of reinforced materials. The principle of nanocellulose reinforcement mainly involves its physical, chemical and interface interaction characteristics. The following analysis is from three aspects: structural characteristics, enhancement mechanism and application. 1. Structural characteristics of nanocellulose Nanocellulose includes three forms: cellulose nanocrystals (CNCs), cellulose nanofibers (CNFs) and bacterial cellulose (BC). Their main features include: high strength and high modulus: Nanocellulose has a Young's modulus of up to 138 GPa, which is comparable to steel and is an excellent foundation for reinforcement materials. Nanoscale effect: Nanoscale size brings high specific surface area, which can form good dispersion and interface bonding forces in composite materials. Multifunctional surface chemistry: surface rich

Nanocellulose coating: application of new environmentally friendly and efficient materials. As environmental problems become increasingly serious, the demand for green and environmentally friendly materials is becoming increasingly urgent. As a new, environmentally friendly and efficient material, nanocellulose coating is attracting attention from various industries. As a natural plant-derived material, nanocellulose not only has excellent mechanical properties but also biodegradable, making it an ideal alternative to traditional coating materials. This article will discuss the advantages, applications and future development prospects of nanocellulose coatings. What is nanocellulose? Nanocellulose (NFC) is a nanoscale cellulose extracted from plants. After physical or chemical treatment, its fibers exhibit extremely strong mechanical properties, high surface area and excellent biocompatibility. Due to these unique properties, nanocellulose is gradually increasing in applications in the fields of coatings, composite materials, electronic products, etc. Advantages of nanocellulose coatings Environmental protection and green materials: nanocellulose

Nanocellulose (NFC) is a high-performance material derived from natural plants. Because of its high strength, good biodegradability and environmental protection, it is widely used in food packaging, textiles, coatings and other fields. Nanocellulose is usually obtained through the dispersion state in aqueous solution, but how to efficiently obtain nanocellulose solid materials from aqueous solution is a key issue in the production process. This article will introduce several commonly used methods, basic steps and precautions for obtaining nanocellulose solids from aqueous solutions. What is nanocellulose? Nanocellulose is nanoscale cellulose extracted from plants and its size is usually within the nanoscale (1-100 nanometers). Due to its unique microstructure, nanocellulose has excellent mechanical properties, transparency, thermal stability and biodegradability. Nanocellulose has good dispersion in water, but for further processing and application, it is necessary to extract solid form from aqueous solution.

Nanocellulose (NFC) is a high-performance material obtained by processing and extraction of natural plant cellulose, and is widely used in green packaging, coatings, medical materials and other fields. Compared with traditional cellulose, nanocellulose has significant advantages in dispersibility, strength, transparency and biodegradability. Preparation of nanocellulose crystals is an important step, especially in the research and application of nanomaterials, the crystallinity of nanocellulose is one of the key factors that determine its performance. What are nanocellulose crystals? Nanocellulose crystals are microcrystal structures formed by cellulose molecules arranged in a highly ordered manner. They usually have strong mechanical strength, rigidity, heat resistance and low density. Nanocellulose crystals show a wide range of application potential in a variety of fields, especially in the manufacture of reinforced materials and high-performance composites. Common methods for preparing nanocellulose crystals. Process for preparing nanocellulose crystals