At present, “nano plastics†has become a “hot spot†for high-tech plastics. In the industry, many companies have a strong interest in “nanoâ€, and even blindly put their products under the name “nano†to improve the grade and popularity of their products without a “nano†concept. Women'S Suede Outwear,Women Woollen Coat,Women Cashmere Jacket,Ladies Long Coat Shaoxing Julong Trading Co.,Ltd. , https://www.julong-foeec.com
Nanomaterials is a completely new field of science that has just emerged in recent years. It involves knowledge of many fields such as physics, chemistry, materials, and biology. This article is only a common sense introduction to "nanoplastics".
To understand "nano-plastics", you should first understand "nanotechnology", and to understand "nanotechnology" must understand "nano".
"Nano" is a unit of measurement of length, which is 1 billion meters (10-9 m). In general, a nanomaterial refers to a one-dimensional scale of at least one phase of a two-phase microstructure reaching a nanometer scale. The particle size of the nanoparticles is small, the surface energy is large, and it is easy to agglomerate. Therefore, how to prepare the nanoparticles itself is a very complicated technical problem. At present, most of the nanoparticles that can be produced and utilized are inorganic nanoparticles, and the nanoparticles that can effectively modify the plastic are SiO2, TiO2, CaCO3, and MMT.
The core content of "nanotechnology" is how to solve the agglomeration problem of nanoparticles. Since the nanoparticles themselves are very easy to agglomerate, it is very difficult to obtain a single dispersed nanoparticle. How to make the nanoparticles uniformly dispersed into the matrix is ​​"nanotechnology" The key technology. At present, from the application research report of "nanotechnology", there are two methods that can be industrialized: 1. Nano-intercalation technology, that is, n-MMT processed by intercalation, has a certain degree of compactness, size The uniform masterbatch is then mixed and granulated by the masterbatch to solve the problem of uneven dispersion of the nanomaterial in the matrix, and the nanocomposite is prepared. 2. The vibration grinding dispersion method can make the nanoparticles uniformly dispersed in the matrix, and basically does not produce agglomeration, and truly achieve nano-scale dispersion.
"Nanoplastic" means that the matrix is ​​a high molecular polymer, and the nanoparticle is sufficiently dispersed in the plastic resin to effectively improve the heat resistance, weather resistance and wear resistance of the plastic. "Nano-Plastic" enables ordinary plastics to have the same rigidity and heat resistance as ceramic materials, while retaining the toughness, impact resistance and ease of processing of the plastic itself. At present, NPE, NPET, and NPA6 (ie, nano-polyethylene, nano-PET polyester, and nano-nylon 6) modified by nanoparticles can be industrialized, and silver (Ag+) is designed to micropores on the surface of particles. In the middle and stable, it can be made into nano-silver antibacterial material. Adding this material to plastic can make the plastic have antibacterial, mildew, self-cleaning and other excellent properties, making it a green product. At present, it has been applied in ABS, SPVC, HIPS, PP plastics.
“Nano-Plastic†is a high-tech new material with good development prospects. Due to lack of understanding of this new material in China, there is no complete quality assurance system and strict production management. The situation of "upper", the eyes of the fish, the truth is difficult to argue, so that "nanoplastics" is at the beginning of the danger of "dead", so I urgently hope that the relevant state departments can protect this new material through the corresponding standards and regulations, and promote It grows healthily.