​High-performance new biomass materials empower green innovation in coating chemicals and composite materials

As the domestic dual-carbon strategy continues to advance and environmental protection control standards continue to upgrade, the coatings, fine chemicals, and polymer composite materials industries are ushering in a structural transformation from the ' traditional chemical system ' to the ' green low-carbon system . The shortcomings of traditional materials in terms of performance stability, weather resistance, and environmental protection indicators have gradually become apparent. The industry generally needs new base materials that are lighter, more stable, lower energy consumption, and recyclable as technological breakthroughs. In this context, nanocellulose based on natural biomass is becoming a key new material to help industrial upgrading.'

As a naturally derived nanofunctional material, nanocellulose combines environmental protection attributes with the excellent performance of nanomaterials, and can effectively make up for the performance deficiencies of traditional formula systems without increasing the burden on environmental protection. Nanjing Tianlu Nano Technology Co., Ltd. has long been focusing on process optimization and scenario-based application research of nanocellulose, continuing to promote the implementation of material technology, and providing stable and reliable green new material solutions for coatings, chemicals, composite materials and other industries.

1. Core definition and product characteristics of nanocellulose

Nanocellulose is a new type of nanopolymer material prepared from renewable resources such as bamboo fiber, wood pulp, and agricultural biomass through mechanical stripping, biorefining, modification and purification. The material retains the advantages of natural cellulose, which is green, non-toxic and completely biodegradable. It also has an ultra-high aspect ratio and excellent nano-microstructure, and has unique rheological properties, mechanical strength, surface activity and film-forming ability.

Compared with traditional inorganic fillers and chemical synthesis additives, nanocellulose has no heavy metal residues, low volatility, good compatibility, and strong designability. It can be adapted to mainstream production environments such as water-based systems, polymer systems, and coating systems. It is one of the green substrates with wide adaptability and great application potential among current biomass new materials.

2. Nanocellulose core technology advantages

In view of the common problems in the coating, chemical, and polymer composite materials industries such as unstable formulas, fragile paint films, insufficient material toughness, and high dependence on additives, nanocellulose can optimize performance from the bottom layer of the material and has five core advantages:

• Nano network rheology control : It can form a uniform three-dimensional network structure in the liquid system, with good thixotropic, thickening, and anti-sedimentation effects. It can effectively stabilize the coating and slurry system and improve common problems such as storage stratification, pigment precipitation, and construction sagging.

• High-strength mechanical enhancement : The material has high modulus and excellent toughness, which can effectively improve the hardness, wear resistance and cracking resistance of the coating film, while improving the tensile properties, impact resistance and fatigue resistance of rubber, plastic and resin materials.

• High surface activity and modifiable : The fiber surface is rich in active hydroxyl groups, which can be adapted to different system needs through hydrophilic, hydrophobic, cross-linking and other modification methods, and is compatible with most chemical formula systems such as water-based, solvent-based, and solvent-free.

• Green and low-carbon, optimized formula system : It can assist in replacing some traditional chemical additives and inorganic fillers, reduce the proportion of chemical additions, reduce the VOC content of the system, simplify the formula structure, and help companies achieve green production and cost optimization.

• Dense film formation and barrier protection : Nanofibers are interwoven to form a dense protective structure, which can improve the waterproof, acid and alkali resistance, UV resistance and aging resistance of the coating, effectively extending the outdoor service life of the material.

3. Core application areas: coatings, chemicals and polymer composite materials

Among the many application scenarios, coatings, fine chemicals and polymer composite materials are the core areas where the industrialization of nanocellulose is most mature and the value has been most significantly improved. Through micro-addition of materials and system adaptation, all-round upgrades in product stability, durability, and environmental protection can be achieved.

1, environmentally friendly coatings and industrial coating systems

In practical applications of water-based coatings, industrial anti-corrosion coatings, and outdoor weather-resistant coatings, there are common problems such as weak storage stability, poor construction leveling, soft paint films, easy cracking at low temperatures, and long-term outdoor aging and loss of gloss. Nanocellulose can be used as a green rheology additive and paint film enhancement component to optimize the comprehensive performance of the paint in an all-round way.

During the storage process, the nano-network structure can evenly suspend powder and pigments, effectively avoiding stratification and precipitation, and improving the storage stability of the paint; during the construction process, the material has good shear thinning properties, and the coating is even and smooth, effectively improving construction defects such as brush marks, orange peel, and uneven thickness.

After the paint film is cured, the nanofibers form a dense reinforcement network, which greatly improves the hardness, adhesion, wear resistance and anti-cracking performance of the paint film, strengthens the waterproof, acid and alkali resistance, and anti-aging capabilities of the coating, and significantly improves the durability of industrial coatings and outdoor coatings. Relying on the environmental protection properties of pure biomass, it can effectively reduce the VOC index of coatings and adapt to the development needs of green coatings in home decoration, industry, flooring, anti-corrosion and other scenarios.

2, fine chemicals, adhesives and sealing materials

In fine chemical systems such as water-based adhesives, sealants, industrial emulsions, and functional slurries, nanocellulose can be used for fine control of the system. It can effectively optimize colloid uniformity and curing stability, improve bonding strength, anti-peeling performance and aging resistance, and improve the problems of traditional adhesive materials that are prone to brittleness, degumming and weak weather resistance.

At the same time, by optimizing the formula structure, the proportion of chemical synthesis additives used can be reduced, pollution emissions during the production process can be reduced, and the fine chemical industry can be upgraded to a green, refined, and high-end direction.

3, rubber plastic, resin polymer composite material modification

Traditional rubber and plastic modification mostly uses inorganic fillers such as calcium carbonate and talc, which often have problems such as weak compatibility, easy agglomeration, and reduced toughness of the base material. This can easily lead to brittle materials, insufficient strength, and low yield. As an organic green reinforcing filler, nanocellulose has excellent compatibility with resin, rubber, plastic, biodegradable materials and other systems.

After addition, a uniform nano-reinforcement network can be formed inside the material. On the basis of retaining the toughness of the base material, it can improve the tensile strength, impact resistance, wear resistance and heat resistance of the composite material. At the same time, it can achieve lightweight products and improve the industry pain points of traditional filling materials : ' weight gain does not increase efficiency and reinforcement easily becomes brittle. ' It is widely used in modified plastics, composite panels, flexible substrates, degradable products and other fields.

4. Other supporting application scenarios

With its excellent general performance and green attributes, nanocellulose can meet the green upgrade needs of many industries:

Green packaging light industry : Relying on high film-forming and high-barrier properties, it is used in degradable packaging, food preservation base materials, high-end paper product enhancement and other fields to achieve low-plastic, environmentally friendly, and high-performance substitution.

Biomedicine and personal care : The material has good biocompatibility, is mild and non-toxic, and can be used in high-end care and medical consumable scenarios such as medical dressings, skin care bases, and gel base materials.

New energy and low-carbon building materials : It can be used in energy storage auxiliary materials, lightweight insulation building materials, sound insulation composite materials and other fields to facilitate the low-carbon upgrading of new energy and building materials.

Modern agricultural consumables : can prepare degradable agricultural film, seedling base materials, and ecological improvement materials to alleviate the problem of agricultural white pollution from the source.

5. Industry development trends and market value

In the context of the continuous advancement of national plastic restriction and ban, ultra-low VOC emissions, and green manufacturing policies, the traditional high-energy-consuming, high-additive, and high-pollution material system is accelerating its iteration. Nanocellulose has gradually become a high-quality alternative to traditional chemical additives, inorganic fillers, and synthetic functional materials due to its comprehensive advantages of being green, environmentally friendly, excellent in performance, highly modifiable, and widely adaptable.

At present, nanocellulose has entered the stage of large-scale industrial application from the laboratory research stage, and its market penetration rate in the fields of coatings, chemicals, and composite materials continues to increase. It is a promising development track in the fields of new biomass materials and green fine chemicals in the future.

6. Corporate R&D and application concepts

Located in Nanjing Jiangning Development Zone, Nanjing Tianlu Nano Technology Co., Ltd. focuses on the green preparation, precise modification and scenario-based application research and development of nanocellulose. Relying on regional scientific research resources and standardized production systems, it continues to optimize product stability and adaptability, and is committed to solving common technical problems in the industry such as weak dispersion, difficulty in system adaptation, and insufficient stability.

The company always takes technology implementation as its core, adheres to scenario demand-oriented and formula adaptation as its goal. It provides refined technology matching and application optimization support for different systems such as coatings, adhesives, rubber and plastic composite materials, etc., helping customers in various industries achieve product quality improvement, production efficiency improvement and green compliance development, and continues to use biomass new material technology to empower industrial low-carbon upgrades.