The technological maturity of phenolic resin hollow microspheres (phenolic hollow microspheres) has improved and the process of localization in the Chinese market has accelerated.

Phenolic resin hollow microspheres, also known as phenolic hollow microspheres, are a new chemical material with a special hollow structure whose inner core is air or other gases and whose outer layer is phenolic resin. Phenolic hollow microspheres have the advantages of absorbing electromagnetic waves, ablation resistance, small particle size, good thermal stability, and excellent thermal insulation properties. They have broad application prospects in the fields of building materials, chemical synthesis, and aerospace.

Phenolic resin is the core raw material of phenolic hollow microspheres, accounting for nearly 70% of its production costs. Phenolic resin is a synthetic resin made from the condensation polymerization of phenol-formaldehyde or its derivatives. It has excellent heat resistance, adhesion, chemical resistance and foaming properties. It is used in thermal insulation materials, refractory materials and filter materials. It is widely used in other fields. In recent years, attracted by the market prospects, relevant enterprises in my country have continued to exert their efforts, driving the continuous expansion of phenolic resin production capacity and the continuous growth of output, which has laid a good foundation for the development of my country’s phenolic hollow microsphere industry.

After years of experience accumulation, the maturity of my country’s phenolic hollow microsphere technology has continued to improve. Emulsion method, self-assembly method, interfacial reaction method, template method and spray drying method are the preparation methods of phenolic hollow microspheres, among which spray drying method is an emerging preparation method. The Institute of Chemistry, Chinese Academy of Sciences, is the first scientific research institution to discover that the spray drying method can be used to achieve mass production of phenolic hollow microspheres. This method has the advantages of not having strict equipment requirements, high production efficiency, and good finished product quality. It has been used in many phenolic formaldehyde hollow microspheres in my country. It has been applied in hollow microsphere production enterprises.

According to the “2023-2028 China Phenolic Resin Hollow Microspheres (Phenolic Hollow Microspheres) Industry Market In-depth Research and Development Prospects Forecast Report released by the Industrial Research Center >》 shows that phenolic hollow microspheres have broad application prospects in the fields of building materials, chemical synthesis and aerospace, with the aerospace field being its largest demand end. Phenolic hollow microspheres have the advantages of high temperature resistance and ablation resistance, and can be used as shell materials for aircraft and rockets. As my country’s aerospace technology continues to make breakthroughs, the market demand for phenolic hollow microspheres will become increasingly strong.

In recent years, affected by the international trade situation, overseas countries have introduced many policies to restrict the export of phenolic hollow microspheres, resulting in supply cuts in our industry. Against this background, local companies continue to increase investment in research and development, which has accelerated the localization process of my country’s phenolic hollow microsphere market. At present, the phenolic hollow microspheres independently developed by Shengquan Group have been successfully used in my country’s launch vehicles and spacecraft return capsules.

          Industry analysts said that phenolic hollow microspheres, as a new material, have broad application prospects in the aerospace field. In the early stages of industry development, my country’s phenolic hollow microspheres were highly dependent on imports. In recent years, with the technological progress of local enterprises, the market share of domestically produced phenolic hollow microspheres in my country has continued to increase. It is expected that in the future, as the industry’s prosperity continues to improve, the number of participants in my country’s phenolic hollow microsphere market will further grow.