Hebei Meixi Biotechnology said that from the development trend of magnesium hydroxide research, from the 80s to the 90s of the 20th century, the United States, Japan and other countries studied a variety of crystal forms of magnesium hydroxide. The main purpose is to improve the physicochemical and mechanical properties of magnesium hydroxide after adding magnesium hydroxide to polymers, especially to improve the mechanical properties of flame retardant materials. For example, the prepared magnesium hydroxide not only has a crystalline structure, but also can reach the nanometer size (1nm 10nm), and when it is added to the polypropylene matrix, it has the properties of some steel, which can replace steel. It shows that nanomaterials have special physicochemical and mechanical properties when added to the polymer matrix, and can play a high-strength alloy role (i.e., non-metallic alloy). Therefore, it is of great significance to carry out research on nanomaterials.
In the scientific research of nanomaterials, it has developed rapidly in the past 20 years, and China has ranked at the world's advanced level in some aspects. At present, the research of nanomaterials has involved many aspects. In the research of nano-magnesium series, it began to develop in the 90s of the 20th century, and the first research was nano-magnesium oxide. Since the mid-90s, China has reported the research on the preparation technology, structure and physicochemical properties of nano magnesium oxide, while the research of nano magnesium hydroxide has not yet attracted attention, and foreign countries have just begun to study, and there are only a few patents with the same content. My country has not yet covered this area. As a result, there is a fundamental gap in this area. China should get involved in this field as soon as possible and carry out research on basic research and development technology. The development of nano-magnesium hydroxide is also very beneficial to the preparation of nano-magnesium oxide.
One of the key technical problems in the preparation of nano-magnesium hydroxide is to master and solve the problem that particles will not produce one or more agglomeration phenomena, and the stability should be high, which involves many technical and technological problems to be solved. Generally, when preparing magnesium hydroxide, it is easy to produce colloids, and without treatment, it is easy to produce particle agglomeration. Therefore, when precipitating under suitable conditions, an effective dispersant needs to be added to make the generated magnesium hydroxide particles not agglomerate after surface modification, so as to exist stably. In fact, the problem of agglomeration runs through the entire process, so solving the problem of agglomeration (not only magnesium hydroxide) is not an easy task, and it is not easy.
Hebei Meixi Biotechnology said that the above questions are just one of the new fields of magnesium hydroxide. As far as development is concerned, it is very promising to get involved in the field of developing nano-magnesium hydroxide.