3results about How to "Barrier" patented technology

The utility model discloses an adsorptive environmental protection oil absorption recovery bag, including recovery bag main part, and recovery bag main part carries out the wrapping to tubular product, and recovery bag main part is multilayer structure, and recovery bag main part includes buffer layer, oil absorption layer, anti -infiltration layer, inner protective layer and outer layer from inside to outside in proper order, the material of outer layer of the utility model resists external impact in the use process, ensures that packing bag still can keep physical performance and chemical stability under the severe environment, adapts the severe working condition in the turnover process. Buffer layer plays the buffer effect of tubular product and oil absorption bag, avoids the damage of physical impact in the operation process to other functional materials. Oil absorption layer has the characteristics of oil absorption, and adsorbs and locks the oiliness in the mixture. Anti -infiltration layer has the barrier property, prevents the seepage of oil -water mixture. Inner protective layer relieves the destruction of internal tubular product to recovery bag main part. The whole impact resistance is strong, safe and durable, is not easy to be corroded, is obviously superior to traditional plastic cloth wrapping mode, is suitable for popularization and application.

This invention belongs to the field of polymer materials technology, specifically relating to a high-barrier, biodegradable, and flame-retardant composite material, its preparation method, and its applications. The technical solution provided by this invention can obtain a high-barrier, biodegradable, and flame-retardant composite material without compromising the effectiveness of the components. The modified black phosphorus nanosheets possess barrier properties, extending the gas permeation path through their two-dimensional layered structure. Simultaneously, the flame retardant has a core-shell structure; the silica coating prevents direct contact between magnesium hydroxide and the matrix. Upon contact with fire, magnesium hydroxide decomposes and absorbs heat (endothermic heat > 1300 J / g), releasing water vapor to dilute oxygen. The SiO2 shell melts to form a dense ceramic layer, synergistically achieving a better flame-retardant effect. The composite material provided by this invention has stronger barrier properties, effectively protecting the contents; it is biodegradable and environmentally friendly; and it has better flame retardancy, thus better preventing safety hazards.

The invention relates to the technical field of films, and discloses an antibacterial PE film and a preparation method thereof. The PE film prepared by the invention comprises the following raw materials in parts by weight: 35-45 parts of low-density polyethylene, 15-25 parts of high-density polyethylene, 10-20 parts of metallocene linear low-density polyethylene, 5-10 parts of maleic anhydride grafted POE, 5-10 parts of a composite antibacterial agent, 2-5 parts of a lubricant and 1-3 parts of an antioxidant. The PE film not only has the barrier property of the traditional PE film, but also is endowed with excellent antibacterial property by adding the composite antibacterial agent.