Miniature air bag and manufacturing method of miniature air bag and foam

The invention discloses a micro air bag, a micro air bag manufacturing method and a foam manufacturing method. Belongs to the technical field of materials. A miniature air bag comprises a hollow air bag film layer; wherein the air bag film layer is filled with air; and the particle size of the micro air bag is 1-2 microns. The invention discloses a preparation method of a miniature air bag. The preparation method comprises the following steps: step 1, atomizing glue; and step 2, irradiating the atomized glue with ultraviolet rays so as to carry out curing. The preparation method of the foam is characterized by comprising the following steps: S1, adding a micro air bag into acrylic glue or polyurethane glue; and S2, uniformly stirring the micro air bag and acrylic glue or polyurethane glue to obtain the glue coating. According to the technical scheme provided by the invention, after the micro air bag and the acrylic glue or the polyurethane glue are mixed and cured, the obtained foam material can provide good