Green building materials emphasize environmental characteristics such as low pollution, recyclability, and resource conservation, and put forward higher requirements for the environmental performance of defoamers. Defoamers should not release harmful substances during use and should not cause harm to the environment and human health. Therefore, choosing environmentally friendly defoamers has become the primary challenge, which requires ensuring that both the defoamers themselves and their decomposition products meet environmental standards.

There are many types of green building materials with complex ingredients, and defoamers need to maintain good compatibility with various green building material ingredients. If defoamers react chemically with building materials, it may lead to a decrease in building material performance and even the production of harmful substances. Therefore, it is necessary to conduct sufficient testing on the compatibility between defoamers and building materials before use to ensure that they will not have a negative impact on the building materials during application.

The application of green building materials requires comprehensive consideration of cost-effectiveness, and defoamers as auxiliary materials are no exception. On the one hand, defoamers need to have high defoaming efficiency to ensure that foam is effectively controlled during the production of building materials; On the other hand, its price also needs to be controlled within a reasonable range to reduce overall production costs. Therefore, when applying defoamers in green building materials, it is necessary to find a balance between efficiency and economy.

Green building materials often need to go through various environmental conditions and processing processes, and defoamers need to maintain stable performance during this process to ensure that their defoaming effect is not affected. At the same time, defoamers also need to have a certain degree of durability, which can continue to play a role in the long-term use of building materials. This places higher demands on the quality and stability of defoamers.

With the increasingly strict environmental regulations, green building materials and their auxiliary materials need to meet more regulatory requirements. Defoamers need to comply with relevant environmental regulations during use, and also pass corresponding certifications and tests. This requires companies to fully understand and comply with relevant regulatory requirements when selecting and using defoamers, ensuring the legality and compliance of the products.

In summary, the application of defoamers in green building materials faces challenges in terms of environmental performance requirements, compatibility issues, balancing efficiency and economy, stability and durability, as well as regulatory compliance and certification. To overcome these challenges, enterprises need to continuously strengthen technological research and innovation, improve the environmental and comprehensive performance of defoamers, and strengthen cooperation and communication with other fields to jointly promote the sustainable development of the green building materials industry.