On the Industrialization of Nano Packaging from the Strategic Height

Nanotechnology boosts a new high-tech industry

The emergence of micron technology brought several industrial revolutions. The first industrial revolution brought steam engines, tractors, etc. The second industrial revolution created the era of electricity, and the third industrial revolution made humans enter the computer information era. Some people predict that the future industrial revolution will have a close connection with nanotechnology, and it will bring more convenient and better new life to mankind.

At the beginning of nanotechnology, many experts predicted that nanotechnology will become one of the leading new technologies in the 21st century. Dr. H. Rohrer, one of the inventors of STM (scanning tunneling microscopy) and the Nobel laureate, once said: “Between 150 years ago, micron became the new precision standard, laying the foundation for the industrial revolution. Countries that learn to use micron technology have a huge advantage in industrial development. Similarly, future science and technology will belong to countries that have wisely embraced nanotechnology as the new standard and first studied and used."

In 2001, when meeting with representatives of the “International Symposium on Nanomaterials High-Level Forum and Technology Applications”, Jiang Zemin emphasized: “Materials are the material basis and precursor for human survival and development. Whoever masters the new materials will master it. In the 21st century, high-tech competition is the dominant power.Nanomaterials are the main components of new materials and are considered as an important symbol of the development of new materials in the new century. They have attracted worldwide attention and will become the leading technology for the development of science and technology in the next two or three decades. ”

On January 26, 2006, the Central Committee of the Communist Party of China and the State Council’s Decision on Implementing the Outline of the S&T Plan and Strengthening the Capacity for Independent Innovation proposed that an important strategic opportunity for seizing and making good use of the development of the first 20 years of this century has been achieved. Strategic areas such as materials are included in the implementation outline of the national long-term science and technology development organization. Advance deployment, increase investment, and strengthen the stamina of sustainable development of technology and economy. Any substance in the world consists of a certain chemical molecular structure. In the past, industrial production activities always reflected the change or decomposition of the physical form. However, since the birth of nanotechnology in 1990, the transformation of the human world into a new world has entered a new field. It represents a new level of understanding of people: from micrometer to nanometer. Humans can manipulate individual atoms and molecules according to their own wishes in the microcosmic world and create new combinations of new atoms, resulting in new production fields such as nanomaterials, nanodevices, and nanodevices. Scientists predict that the 21st century will be "the age of nanotechnology."

Nanotechnology refers to the scientific and technological research and application of substances and life in the range of 0.1 nanometers to 100 nanometers. It extends the means and capabilities of humans to recognize and transform the material world directly to molecules and atoms. It directly uses molecules and atoms to produce, and produces ultrafine particles--nanoparticles containing dozens to tens of thousands of atoms--and makes it As a basic constituent element, nano solid materials are arranged. Nanomaterials are new members in the material family and are a new type of material with excellent properties. Nanomaterials exhibit properties different from those of individual atoms and molecules, as well as properties of bulk materials. They have unexpected properties.

The research field of contemporary nanotechnology focuses on three aspects: first, research on nanomaterials and nanostructures, and research on improving the overall performance of traditional materials; second, designing and fabricating novel nanostructures and devices to promote information, Innovations and developments in energy, environment, medical, agricultural and aerospace technologies; third, practical applications of nanoprocessing and nanoprobe technologies.

Nanotechnology reveals a visible world of atoms for humans. As a new discipline, it has established mature research topics in the fields of nanoelectronics, nanobiology, nanomaterials, and nanomechanics. The ultimate goal is to construct products with specific functions directly from atoms and molecules. It is generally believed that nanotechnology will have a profound impact on information technology and life science technology. It will also lead to the birth of a new high-tech industry.

Application of nanotechnology in the field of packaging and printing

Scientific predictions: The arrival of the nano-era will not be long, and its future applications will far exceed the computer industry. Seen in subtle detail, nanotechnology known to the world will completely change the current industrial structure and engender tremendous business opportunities. In China, the attention of entrepreneurs to nanomaterials and technology has injected new vitality into the formation of nanotechnology industry. In particular, the application and development of nanotechnology and materials in the packaging and printing industry has reached the stage of practical application (such as nanoscale ink, nano-antibacterial packaging, nano-plastic packaging, nano-composite materials, nano-anti-counterfeit printing, and can also be applied to paper and copy paper. , military packaging and other fields) will have a positive effect on the upgrading of traditional packaging products and the development and performance improvement of new packaging materials in the future.

The world's annual consumption of packaging materials consumes a large amount of resources. For this reason, while improving the performance of packaging materials, reducing material consumption and reducing processing costs, it is always the goal pursued by the packaging and printing manufacturing industry.

In the new century, with the continuous development of new technologies and new technologies, people have put forward higher requirements for packaging. The development and research of functional packaging materials has received more and more attention. The emergence of nanotechnology has provided people with new ideas and technical support. New materials such as nano-barrier materials, nano-anti-static materials, nano-stealth materials, nano-antibacterial materials, and nano-coatings will gradually be developed and applied in the packaging field. "Nano-packaging" is an emerging technology that is not yet defined. With reference to other nanotechnology, it can be considered that the so-called "nano packaging" is a kind of emerging nanotechnology, using nanomaterials, so that the packaging has a super-functional or specific characteristics of a kind of packaging summary.

Nano-packaging materials are nano-composite packaging materials made of single-crystal or poly-crystal materials with grain sizes of 1 nm to 100 nm and other packaging materials. They can be divided into four types according to the structure: the grain size is at least in one direction. Within the nanometer range, they are called three-dimensional (3) nanomaterials; those with a layered structure are called two-dimensional (2) nanomaterials; those with a fibrous structure are called one-dimensional (1) nanomaterials; they have atomic clusters and atomic beam structures. It is called zero-dimensional (0) nanomaterial. The zero-dimensional, one-dimensional, and two-dimensional basic units are also known as quantum dots, quantum wires, and quantum. Since the nano-sized grains are finer than the grains of the conventional materials, the number of atoms on the grain boundaries is greater than the number of atoms inside the grains, and a high-concentration grain boundary is formed. The decrease in size leads to a large decrease in the number of atoms contained in the nanosystem, and the disappearance of the macroscopically fixed quasi-continuous band, which appears as a discrete energy level. The benefits of quantum size are very significant, bond states are seriously mismatched, many active centers appear, giving nanomaterials many properties that are different from conventional materials, such as high strength, high hardness, high resistivity, low thermal conductivity, low modulus of elasticity, Low-density, high-barrier, etc. These properties determine its broad application prospects in the future. Using the characteristics of nanoparticles, one can synthesize composite materials of two or more substances with completely different atomic arrangement states from the orderly and disordered phases that were difficult to achieve in the past. Nano-synthesis provides a new approach for the development of new materials, and non-equilibrium and dynamic material technology will have new breakthroughs in the 21st century.

Since Gleiter et al. took the lead in nanomaterial production in 1991, after more than a decade of development, nanomaterials have made great strides. Nowadays, there are many types of nanomaterials, which are classified according to their materials: nanometal materials, nanoceramic materials, nano-semiconductor materials, nanocomposites, and nano-polymeric materials. They are more or less applied in the field of packaging, such as nano-high barrier sealing packaging materials, nano-anti-static packaging materials, both have better performance than raw materials, but also can be processed under conventional conditions, but also have a high surface gloss It provides a good foundation for people's applications.

Reprinted from: China Packaging News