What are Nanoplastics?

Nanomaterials is a completely new scientific field that has just emerged in recent years. It involves knowledge in many fields such as physics, chemistry, materials, and biology.

Nanoplastics

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Nanomaterials is a completely new scientific field that has just emerged in recent years. It involves knowledge in many fields such as physics, chemistry, materials, and biology.

Chinese name

Nanoplastics

Foreign name

nano-plastics; nanoplastics;

This article is only a common sense introduction to "nanoplastics".

To understand "nanoplastics" you must first understand "nanotechnology", and to understand "nanotechnology" you must understand "nano".

"Nano" is a unit of measurement of length, and its scale is 1 billionth of a meter (10-9m). In general, nanomaterials refer to the one-dimensional dimension of at least one of the two-phase microstructures reaching the nanoscale. Nanoparticles have a small particle size, large surface energy, and are easy to agglomerate, so how to make nanoparticles is a very complicated technical problem in itself. The nanoparticles that can be produced and used are mostly inorganic nanoparticles. The nanoparticles that can effectively modify plastics are SiO2, TiO2, CaCO3, MMT, and so on.

The core content of "nanotechnology" is how to solve the problem of agglomeration of nanoparticles. Since the nanoparticles are easy to agglomerate, it is very difficult to obtain a single dispersed nanoparticle. How to uniformly disperse the nanoparticles into the matrix is "nanotechnology" Key technologies. From the application research report of "nanotechnology", there are two methods for industrialization: 1. Nano-intercalation technology, that is, n-MMT processed by intercalation, is made with a certain degree of compactness and uniform size The masterbatch is then mixed and blended and granulated to solve the problem of uneven dispersion of nanomaterials in the matrix and made into nanocomposite materials. 2. The use of the vibration mill dispersion method can uniformly disperse the nanoparticles in the matrix, and basically does not produce agglomeration, and truly achieves nano-level dispersion.

"Nanoplastics" means that the matrix is a high-molecular polymer, and through the adequate dispersion of nanoparticles in plastic resins, the heat, weather, and abrasion resistance of plastics are effectively improved. "Nanoplastics" can make ordinary plastics have the same rigidity and heat resistance as ceramic materials, while retaining the toughness, impact resistance and ease of processing that plastics have. NPE, NPET, and NPA6 (ie, polyethylene, nano PET polyester, and nano nylon 6) modified by nanoparticles can be industrialized. Using nanoparticles, silver (Ag +) is designed into the micropores on the surface of the particles. Stable, it can be made into nano-planted silver antibacterial material. Adding this material to plastic can make plastic have excellent properties such as antibacterial, mildew resistance and self-cleaning, making it a green product. Has been used in ABS, SPVC, HIPS, PP plastics.

"Nanoplastics" is a high-tech new material with good development prospects. Due to the lack of awareness of this new material in China, there is no complete quality assurance system and strict production management. In the situation of upper and lower, it is difficult to argue between true and false, which makes nanoplastics face the danger of death at the beginning. Therefore, the author eagerly hopes that relevant national departments can protect this new material through corresponding standards and regulations and promote Its healthy growth.