Abstract: A PTFE composite powder, a preparation method thereof, and a composite material containing the same are provided. The PTFE composite powder includes the following components: a PTFE powder, an inorganic powder, and a surface treatment agent. The inorganic powder is coated on a surface of the PTFE powder to form an inorganic powder layer, and the surface treatment agent is coated on the inorganic powder layer. For the composite material obtained by the present invention, the compatibility between the PTFE composite powder and matrix polymer is better than that of the prior art, leading to larger addition amount, and smaller dielectric constant and dielectric loss of the composite material, thus suitable for being used as 5G materials.

Abstract: A labor protection glove includes a glove body including a glove liner and a back rubber protection layer disposed on a surface of a back of the glove liner. The glove liner includes a skin contact layer, a moisture absorption layer disposed outside the skin contact layer and a wear-resistant layer disposed outside the moisture absorption layer. The back rubber protection layer includes a finger rubber layer disposed at a back of a finger of the glove, a palm-back rubber layer disposed at a back of a palm of the glove body, and a root knuckle rubber layer disposed between the finger rubber layer and the palm-back rubber layer for protecting a knuckle. The finger rubber layer and the root knuckle rubber layer are independently formed by injection molding.