The term "固化劑" in English can be translated as "curing agent" or "hardener". A curing agent is a substance that is added to a material to promote the curing or hardening process. This process is typically used in the manufacturing and construction industries to enhance the strength and durability of materials.

Curing agents are commonly used in the production of coatings, adhesives, and composites. They can be added to a variety of materials such as resins, epoxies, and polymers to improve their performance characteristics. Curing agents work by initiating a chemical reaction that results in the formation of crosslinks between the molecules of the material, creating a strong and stable structure.

There are several different types of curing agents available, each with its own specific properties and applications. Some common curing agents include amines, anhydrides, and polyamides. These agents can be tailored to meet the specific requirements of the material being cured, such as temperature resistance, flexibility, or chemical resistance.

The selection of the appropriate curing agent is crucial to the success of the curing process. Factors such as the type of material, curing conditions, and desired properties must be taken into consideration when choosing a curing agent. Improper selection or use of a curing agent can result in incomplete curing, poor adhesion, or reduced durability of the material.

In conclusion, curing agents play a vital role in the manufacturing and construction industries by improving the strength and durability of materials. By selecting the right curing agent and following proper curing procedures, manufacturers can produce high-quality products that meet the desired performance requirements.