3 results about "Membrane structure" patented technology

A high heat preservation ETFE membrane structure comprises an ETFE membrane layer of a periphery fixed pulling cable, and a metal section clamp of a clamping pulling cable, which is assembled inside a chamber formed by a metal section component. The invention has the technical key points that: the ETFE membrane layer is composed of an outer layer membrane, a middle layer membrane and an inner layer membrane; at least two charging chambers are formed among all the layer membranes; a charging connector and a perforation gas nipple which are fixed on the layer membrane wall of all the charging chambers respectively utilize an air hose to be connected with a corresponding inflation system. The invention has simple structure and easy fabrication and installation, and effectively solves the problems of the poor insulating performance and the difficult charging of a plurality of chambers of the prior single cavity body membrane material, thereby not only improving the insulating performance of the membrane structure, but also ensuring the initial design effect of the architecture.

The invention discloses a preparation method of an oil-water separation membrane, and belongs to the technical field of environmental protection. According to the method, wood stone fiber is mixedintopolyvinylidene chloride melt in a suitable temperature condition, and lignin reaches glassy state, is softened and flows under high pressure; nanofiber sponge is prepared from resin soaked activatedstone pulp; sea-foam stone powder in the activated stone pulp belongs to a magnesium-enriched silicate compound, can magnesium hydroxide crystal and ammonium phosphate under the action of ammonia gasand phosphoric acid, not only ensures that oil absorption sponge has high porosity, but also ensures that the oil absorption sponge has certain flame retardant property; firstly scale has a bionic hydrophobic structure, and a separation membrane structure with a hydrophobic exterior; finally during the process of copper film plating, the internal surface area of fiber fabric is greatly increased through activation of phosphoric acid, and a plurality of active centers are formed in the surface of the fiber fabric; granule suspension oil and dissolved oil liquid can be easily absorbed into interiors of pores, so that damage to the inner surface of the fiber sponge is weakened when the inner surface is scoured by liquid, and the oil-water separation membrane has a wide application prospect.