The long road to industrialization of nano-composites

Recently, the 3rd International Conference on Advanced Fibers and Polymer Materials was held at Donghua University. As one of the main topics of the conference, the research and development of nanocomposites has attracted the attention of all parties.
Hot topics are attracting attention from all parties
It is understood that the average annual growth rate of nano-composites exceeds 30%, and the annual growth rate of nano-composites includes PP, PA, PET, and PVC nanocomposites. The market potential of nano-composites is huge and has become a hot topic in the industry. One of the topics.
In the three major synthetic materials fields, nanocomposites are composed of polymers, fibers, rubber and nanomaterials. Compared with traditional materials, nanocomposites have excellent properties. For example, polymer nanocomposites, due to their excellent surface interfacial effect, small size effect, and quantum size effect, combine with excellent properties such as low polymer density, corrosion resistance, and easy processing to exhibit different from conventional polymer composites. Material properties. Due to the simple processing and obvious effects, the industry is optimistic about the market prospect of polymer nanocomposites.
At present, all countries in the world are actively researching and developing nano-composite materials. The application of nano-technology in the fields of plastics, chemical fiber, and rubber raw materials is attracting attention.
In the field of nano-plastics, the rise of polymer nano-composites has injected new vitality into the traditional plastics industry. Compared with traditional plastic materials, polymer/nanocomposites exhibit more excellent overall performance. For example, compared with the traditional pure nylon 6, nylon 6-nanometer plastic has high strength, high modulus, high heat resistance, low hygroscopicity, high dimensional stability, good barrier properties, comprehensive performance over nylon 6, and good Processing performance; Compared with ordinary glass fiber reinforced and mineral reinforced nylon 6, nylon 6 nanometer plastic has the advantages of good wear resistance and excellent comprehensive performance, and nylon 6 nano plastic can be further used for glass fiber reinforcement and ordinary mineral reinforcement. And other modified nano-nylon 6, its performance is more superior.
In the field of nanofibers, advances in nanotechnology have enabled nanomaterials to be further used in functional polyester (PET) fibers, and a number of functional nanomaterial-containing PETs manufactured by blending, conjugate spinning, or finishing and other technologies. Fibres have emerged one after another. Among them, PET fibers that absorb far-infrared, anti-ultraviolet, antibacterial, deodorizing, hydrophilic, lipophilic, radiation resistant, discolored, aromatic, heat-resistant, flame-retardant, antistatic, and conductive have attracted attention. .
In the nano-rubber field, nano-polymers have received good energy-saving results in tire applications. Novamont, Italy, has teamed up with Goodyear Tire & Rubber to develop nano-sized starch polymers produced from grain, which can significantly reduce tire rolling resistance. The tires modified with starch polymer have a 25% reduction in rolling resistance compared with those with deposited silica, and further development is expected to reduce the resistance by 40%. Using this technology, Goodyear's Biodrot GT3 tires have been introduced to Europe and promoted to the Japanese market by Goodyear subsidiary Dunlop Company. This technology blends round nano-particles of starch polymer with rubber. The key components use petrochemical polymers to combine the low rolling resistance of starch with the high elasticity of petrochemical polymers. The use of a Biotred GT3 tire can reduce fuel consumption by 5% compared to silicon oxide-containing tires.
China's new material application market needs training
In the late 1980s, Japan first developed a two-step process for the preparation of nylon 6/montmorillonite nanocomposites. Since then, nanocoor of the United States has also conducted industrial research on polymer/clay nanocomposites. Natural clay mineral montmorillonite was used as the disperse phase in the State Key Laboratory of Engineering Plastics of the Chinese Academy of Sciences Institute of Chemistry. Nanoplastics were prepared by intercalation polymerization, melt intercalation and composite methods. Polyamides, polyesters, and polyethylenes were successfully developed. Polystyrene, epoxy resin, silicone rubber, polyaniline, polyurethane and other base materials for a series of nano-plastic.
Research on nanotechnology in China has progressed rapidly. In particular, many achievements have been made in nano-coatings, nano-antibacterial materials, and nano-powder processing technologies. According to the statistical analysis of nano-study papers included in the American Scientific Citation Index System (SCI), the number of papers published in this field in China is second only to the United States and Japan, ranking third in the world.
Nanotechnology is an important technology that guides the industrialization revolution today. The development of nanotechnology will have a major impact on the innovation of catalytic materials in the petrochemical industry and the modification of three major synthetic materials. However, the marketization of nanocomposites has a long history of applications. Way to go.
Dr. Li Bizhong, Chairman of the Beijing Subsidiary Nanotechnology Co., Ltd., and the Polymer Physics Ph.D. of the Chinese Academy of Sciences’ Chemical Institute, has long been engaged in research and development and industrialization of nanomaterials and polymer materials. He said that there have been more and more clay/polymer nanocomposites. Material systems have been researched and developed, such as clay/nylon, clay/thermoplastic polyester, clay/polypropylene, clay/UHMWPE, clay/polystyrene, clay/low molecular liquid crystal, clay/polyaniline, clay/ Thermosetting plastics (such as epoxy resins, phenolic resins, unsaturated polyesters), clays/rubbers (polyurethanes, silicon rubbers, nitrile rubbers, etc.), but have a large industrial value and have already achieved scale production. The main reasons for this are the huge investment in the industrial production technology development of clay/plastic nanocomposites and the long development cycle. The second is that the application market for nanocomposite plastic materials developed needs to be cultivated and the process is long.

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