1、What is thermoset resin
Thermoset Polymer is a class of monomer molecules in the curing agent, heat or radiation, etc., under the action of a series of addition and polycondensation reactions to form a spatial three-dimensional mesh structure, for the basic irreversible cross-linking structure.
Once the resin is formed, it can only be dissolved by special chemical solvents or oxidized by strong oxidizing agents, and it is difficult to soften it by continuous heating, which determines that thermosetting resin can only be cut for secondary processing, recycling is more difficult.
2、Characteristics of thermosetting resin
Thermoset resins are known for their excellent comprehensive performance, mainly including the following aspects:
High strength: thermoset resins are significantly stronger than ordinary plastics, and are able to meet the demands of use under high load conditions.
Good heat resistance: Due to the strong solidity of their chemical bonds, thermoset resins maintain a stable structure and performance in high temperature environments.
Excellent electrical properties: In the electrical and electronic fields, thermoset resins exhibit excellent insulation and arc resistance.
Corrosion resistance: able to resist the erosion of a variety of chemical substances, ensuring the long-term use of the material in harsh environments.
Aging resistance: stable performance under long-term use, not easy to aging and degradation.
Good dimensional stability: the cured thermosetting resin products have high dimensional accuracy and are not easily deformed.
3、Common classification of thermosetting resin
There are many kinds of thermosetting resins, and the common ones include the following:
Epoxy resin: with excellent adhesion, chemical resistance and electrical properties, widely used in coatings, adhesives, composite materials and other fields.
Polyester resin: mainly used in the manufacture of artificial stone, paint and glass fiber reinforced plastic products, with good processability and weather resistance.
Phenolic Resin: with high strength, heat resistance and corrosion resistance, it is an important material in the field of electrical and electronic.
Furan resin: made from furfural or furfuryl alcohol and other raw materials, with excellent chemical resistance and heat resistance, suitable for the preparation of high temperature resistant materials.
Melamine Aldehyde Resin: made from melamine and formaldehyde polycondensation, mainly used in the manufacture of decorative panels and laminates.
4、Characteristics of thermosetting resin
Thermosetting resins are widely used in several fields because of their unique properties:
Composite material manufacturing: combined with fiber materials (such as carbon fiber, glass fiber) to form high-performance composite materials, which are widely used in aerospace, automotive, sports equipment and other fields.
Artificial stone: mixed with natural stone powder to make artificial stone with adjustable color and texture, widely used in building decoration and furniture manufacturing.
Coatings and Adhesives: As the main component of coatings, it provides wear-resistant, weather-resistant and corrosion-resistant protective layer; at the same time, it is also used as an adhesive for bonding of wood, metal and other materials.
Electrical & Electronics: It plays an important role in circuit boards, cable insulation, and electronic component housings to ensure the stability and safety of electrical equipment.
Other fields: It is also used in chemical equipment such as pipelines, storage tanks and anti-corrosion linings, as well as in mold manufacturing and printed circuit boards.
Due to the unique physical and chemical properties of thermosetting resin materials, landfill disposal, although a simple process, will cause persistent pollution of the natural environment, and ordinary incineration will also produce toxic and hazardous substances.
Therefore, the research and development of efficient recycling technology for thermosetting resin composite materials has become an important challenge that needs to be solved urgently. In recent years, global researchers have conducted in-depth exploration and research on the recycling technology of thermosetting resin composite materials, and have developed various new recycling technologies, such as direct recycling, pyrolysis recycling, and recycling using chemical solvents.


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High termperature curing polysilazane, pls check IOTA 9108, IOTA 9118.