31results about How to "Good shielding properties" patented technology

A protector includes a protector body which has a receiving portion for receiving at least one wire. A groove is formed on a bottom face of the receiving portion. The groove has a width smaller than a diameter of the wire.

The invention relates to a plug connector housing consisting of at least one housing upper part (1) and at least one housing lower part (5) which together form a plug connector housing. The housing upper part (1) and the housing lower part (5) each have a contact surface (3, 9a, 9b), said contact surfaces (3, 9a, 9b) being at least partly in contact with each other when the housing upper part (1) and the housing lower part (5) are connected to each other. The housing upper part (1) and the housing lower part (5) are made of an electrically conductive material, said housing upper part (1) and lower part (5) having a surface coating that protects against corrosion for example, and the contact between the two contact surfaces (3, 9a, 9b) is formed along an edge (9).

The invention belongs to the technical field of composite materials, and particularly relates to a radiation protection gradient composite material and a preparation method and application thereof. In parts by weight, the radiation protection gradient composite material includes the following components: 30-40 parts of core layer composite crystals, 35-50 parts of BECQ powder, and 20-35 parts of polyethylene glycol. The radiation protection gradient composite material includes an inner layer of BECQ powder and an outer layer of a core layer composite crystal. The radiation protection gradient composite material of the present invention is based on the BECQ powder, and then adds a core layer composite crystal layer, and the main component of the core layer composite crystal layer is MoO 3 Crystal, the crystal has good shielding properties. The outer core layer composite crystal can absorb and attenuate radiation rays, and the inner layer BECQ powder further attenuates and absorbs attenuating radiation rays. The synergistic effect between the two can effectively shield Radiation rays, therefore, have certain application prospects in the field of materials.

An optical filter includes an absorption layer which increases a visible light transmittance while having a good near-infrared blocking characteristic, and which is excellent in not only adhesivenesswith respect to a layer to be abutted, but also light resistance. The optical filter includes the absorption layer containing a near-infrared absorption dye containing a squarylium-based dye and a transparent resin; and an inorganic or organic material in contact with the absorption layer. The squarylium-based dye has a squarylium skeleton and condensed ring structures bonded thereto respectivelyon both sides thereof, the condensed ring structures each including a benzene ring and a nitrogen atom as an annular atom, each benzene ring having an urethane structure in the second position.