As a new bio-based material, nanocellulose is launching a green revolution in the field of environmental protection. This nano-scale material extracted from plant cell walls has a unique structure and excellent performance, providing new ideas and methods for solving environmental problems. 1. Application of nanocellulose in pollution control Nanocellulose has shown great potential in the field of pollution control. Its high specific surface area and abundant surfactant groups make it an efficient water treatment material. Studies have shown that the adsorption capacity of chemically modified nanocellulose to heavy metal ions can reach 200-300mg/g, far exceeding that of traditional adsorption materials. In terms of oil stain treatment, nanocellulose aerogel can absorb 30-50 times its own weight and can be reused by extrusion. In the field of atmospheric purification, nanocellulose films have a filtration efficiency of PM2.5 exceeding 99%, while maintaining low air resistance. Compared with traditional meltblown materials

With the continuous advancement of space technology, humans' research on material behavior and applications in the space environment is becoming increasingly in-depth. In many research fields, nanocellulose, as a naturally renewable nanomaterial, has received widespread attention for its unique structure and excellent properties. Especially in space microgravity environments, the self-assembly behavior of nanocellulose shows unprecedented potential to provide new solutions for spacecraft design and other space applications. Research background: Self-assembly behavior in microgravity environment Self-assembly refers to the automatic formation of an orderly system with specific structures or functions by the interaction between molecules under specific conditions. In a microgravity environment, the impact of gravity on matter is significantly reduced, resulting in the surface tension of the liquid and the interaction force between molecules playing a more important role in the self-assembly process. As a highly structured nanomaterial, nanocellulose has hydrogen bonds between molecules, van der

With the continuous advancement of science and technology, nanotechnology has shown great application potential in many fields. Nanocellulose, as an important nanomaterial, has been widely used in many industries for its unique thickening properties. This article will introduce the thickening effect of nanocellulose in detail through principles, performance characteristics and application fields, and combine it with some data parameters to support it. 1. Nanocellulose thickening principle Nanocellulose is mainly decomposed into nano-scale fibers by physical or chemical means by cellulose molecules, with a very high specific surface area and a unique molecular structure. This allows it to thicken the liquid through a variety of mechanisms. The following is a specific analysis of its thickening principle: the specific surface area of ​​nanocelluloses can usually reach 200–400 m²/g, which is much higher than traditional micro-scale cellulose. Such a large specific surface area allows nanocellulose to have extensive contact with molecules in the liquid, resulting in powerful

The preparation of cellulose nanocrystals (CNCs) by ultrasonic means is a process of decomposing cellulose samples into nano-scale cellulose crystals by using the cavitation effect of ultrasonic waves. The high-frequency vibration of ultrasonic waves causes extremely high temperature and pressure fluctuations in the liquid, thereby forming cavitation bubbles in the liquid. The shear force and high temperature effects generated by the cracking of the bubbles can effectively break the amorphous area of ​​cellulose. Crystalline regions are exposed to form cellulose nanocrystals. 1. Working principle of ultrasonic method The core of ultrasonic method is cavitation effect. The cavitation effect refers to the fluctuation that changes alternately between high and low pressures when ultrasonic waves propagate in liquids. During the low pressure cycle, gas solubles and tiny bubbles in the liquid will expand and eventually burst, resulting in local extremely high temperatures and pressures. This instantaneous high temperature and high pressure environment will cause chemical bonds between cellulose molecules to break, resulting in high crystallinity. Cellulose nanocrystals. Frequency range: usually at 20 kHz

Nanocellulose whiskers (NFC) and nanocellulose crystals (CNC) are two important nanocellulose forms, and they have significant differences in structure, performance, manufacturing methods and applications. To further understand their differences, we can discuss them in more detail from the following aspects: 1. Structural and Morphological Nanocellulose Whiskers (NFC): Morphological Characteristics: NFC usually presents a stripe or fibrous structure with Larger surface area. Its form is composed of cellulose microfibers that may vary in length and width. Irregularity: The structure of NFC does not have strict crystallinity and contains a large number of amorphous regions, which do not have regular atomic arrangements. These amorphous regions of NFC are its advantages in dispersion and flexibility, although this makes its mechanical properties relatively low. Cellulose molecular chain: The molecular chain of NFC is linear and can be easily associated with water.

With the increasing global demand for renewable energy, solar energy, as a green and clean energy, has received widespread attention. Although traditional silicon-based solar cells dominate the market, researchers have been exploring alternative materials due to their high costs and energy consumption in the manufacturing process. Nanocellulose (NFC, Nanocellulose) has gradually become an important direction in solar cell research due to its excellent mechanical properties, renewability and biodegradability. This article will discuss in detail the application of nanocellulose in solar cells and its potential. 1. Basic properties of nanocellulose Nanocellulose is nano-scale fiber obtained by physical, chemical or biological treatment of natural plant fibers. Common ones include nanocellulose whiskers (CNC, Cellulose Nanocrystals) and nanocellulose glue. Float (CNF, Cellulose

From Thickening to Hair Care: Multi-dimensional Application of Nanocellulose in Shampoos As global consumers' demand for green, natural and efficient personal care products continues to grow, traditional chemical synthesis ingredients are gradually being questioned. At the same time, natural, high-performance materials are being increasingly used in personal care products such as shampoos. As a natural source of high-performance nanomaterial, nanocellulose (NFC) has shown great potential in the field of shampoo with its outstanding physical and chemical properties. This article will deeply analyze the multiple applications of nanocellulose in shampoos, explore how it plays a key role in thickening, foam formation, hair care, etc., and promote the innovation and development of shampoo products. 1. Basic Characteristics and Advantages of Nanocellulose Nanocellulose (NFC) is a nano-scale fiber material extracted from natural plant fibers. It is usually composed of hundreds to thousands of glucose units and has an extremely high level of

Hydrophobic modified nanocellulose (HNC) is a material with good dispersion, enhanced mechanical properties and hydrophobic properties obtained by nano- and hydrophobic treatment of natural cellulose. It is mainly used in composite materials, coatings, oil-water separation, drug delivery and other fields. Below are the detailed preparation steps: 1. Pretreatment of cellulose raw materials. In order to make natural cellulose materials suitable for nanoification and further chemical modification, pretreatment is first required: cleaning and removing impurities: Cellulose raw materials (such as wood pulp , cotton, rice husk, etc.) Wash it with water to remove impurities such as resin, sugar, protein, etc. This can be accomplished by acid-base washing, enzymatic lysis, or hot water treatment. Chemical treatment: In order to improve the reactivity of cellulose, acid-base treatment is usually performed. Acid treatment (such as sulfuric acid) can destroy hemicellulose and lignin in cellulose,

To improve the preparation method of nanocellulose (NFC or CNC) requires systematic optimization from multiple aspects such as raw material selection, preparation process, equipment optimization, surface modification, characterization means, environmental protection and sustainability. The following is a detailed explanation: 1. The selection of raw materials and the performance of pretreated nanocellulose depends to a large extent on the quality of the raw materials and the pretreatment method. Raw material selection: Choose high-purity and high crystallinity cellulose sources, such as cotton, wood pulp, hemp, sugarcane bagasse, etc. Agricultural waste (such as straw, corn stalk) and industrial by-products (such as pulp waste) are low-cost, sustainable sources of raw materials. Pretreatment: Delignin: Use alkaline treatment (such as NaOH) or organic solvent method to remove lignin to improve cellulose purity. Dehemicellulose: Remove hemicellulose by acid treatment or enzyme treatment to reduce impurity interference. Bleaching: Use hydrogen peroxide or chlorine to further improve the purity of the cellulose. 2. Optimization of preparation method

The difference between carboxylated modified nanocellulose and nanocellulose is not only reflected in chemical composition and structure, but also in their physical properties, functional properties, stability and application fields. The difference between the two will be explained in detail through a more in-depth comparison. 1. Differences in chemical structure and functional groups Nanocellulose: Chemical structure: Nanocellulose is a nanoscale fiber material extracted from natural cellulose. Cellulose is a polymer compound formed by glucose units connected through β-1,4 glycosidic bonds. The crystal structure of natural cellulose is relatively tight. Nanocellulose degrades cellulose into nano-scale fibers through chemical or mechanical treatment, with high specific surface area and good mechanical properties. Surface functional groups: Unmodified nanocellulose surface contains a large amount of hydroxyl groups (