With the increasing global awareness of environmental protection, wetting agents, as an indispensable part of the chemical industry, have become a consensus in the industry for their green development. The research and development of environmentally friendly substrates, as the primary step towards greening wetting agents, is leading a profound transformation in this field.

The selection of environmentally friendly substrates is directly related to the environmental impact of wetting agents in production, use, and waste disposal processes. Using biodegradable, non-toxic, and low polluting raw materials can not only reduce harmful substance emissions during the production process, but also enhance the environmental friendliness of products and promote ecological balance.

The use of natural plant extracts, chitosan, starch, and other materials as substrates, which are widely sourced, renewable, and have good biocompatibility, is an important direction for the future development of wetting agents. The application of nanotechnology, such as surface modification of nanoparticles, can significantly improve the wetting effect while reducing material usage, achieving high efficiency and low consumption. By accurately designing composite material formulas and combining the advantages of different materials, a new type of wetting agent substrate with superior performance and environmental friendliness has been developed.

Although some progress has been made in the research and development of environmentally friendly substrates, they still face challenges such as cost control, large-scale production, and performance stability. In the future, with the continuous advancement of technology and sustained policy support, environmentally friendly substrates will become more diversified and efficient, laying a solid foundation for the green development of wetting agents.