5results about How to "Green" patented technology

This solution relates to the coatings field and proposes an aqueous nano-dispersion of far-infrared negative oxygen ion material. By weight, it comprises: 300-350 parts water; 35-45 parts wetting agent; 40-60 parts dispersant; 25-35 parts defoamer; 35-45 parts multifunctional additive; 5-7 parts thickener; 400-600 parts activated far-infrared negative oxygen ion material; 1-3 parts accelerator; and 3-5 parts shielding agent. This solution designs a multi-component synergistically promoting activated far-infrared negative oxygen ion material, which can improve the hemispherical spectral emissivity in the 4-14μm band, even reaching above 0.95 in the key 8-12μm band, effectively promoting formaldehyde decomposition with a long-lasting effect, while also improving antibacterial properties.

The application provides a high-temperature unstable permafrost pre-melting and vacuum preloading reinforcement system and a reinforcement method, and the system comprises a pre-melting and thawing device, a sealing system and a steam generator, and the sealing system and the steam generator are connected with the pre-melting and thawing device. The pre-melting and thawing device is matched with the steam generator, the high-temperature unstable permafrost is pre-melted by using steam convection and heat conduction, the pre-melting and thawing efficiency is improved, the system has the characteristics of green environmental protection, and has no adverse effect on subsequent engineering construction. The sealing system is matched with the pre-melting and thawing device to realize the drainage consolidation of the high-temperature unstable permafrost foundation, the thawing pipe and the soil body are prevented from being empty, the pre-melting and thawing efficiency is ensured, the uneven subsidence problem caused by repeated freezing and thawing cycles is eliminated, the bad properties of the frozen soil are changed, and the stability of the foundation is effectively improved.

The present application relates to a kind of organic-inorganic hybrid monolithic material containing bipyridine and preparation and CB [5] and CB [7] separation. Specifically, first using tetramethoxysilane and 3-chloropropyl trimethoxysilane as silane reagent, urea and polyethylene glycol-10000 as porogen, after hydrolysis reaction of silane reagent, copolymerization is carried out into the silica gel monolithic material with chlorine atom, then through electrophilic substitution reaction modification 4,4-bipyridine, obtain a kind of organic-inorganic hybrid monolithic material containing bipyridine. Using the difference between CB [5], CB [7] and host-guest interaction of bipyridine, the selective separation of CB [5] and CB [7] is realized. The method used in the present application process is simple, organic solvent is used less, green and environmental protection, can be applied to large-scale preparation high-purity CB [5] and CB [7], with good commercialization prospect.

The application provides a kind of adhesive for flexible composite pipe repair and its preparation method.The adhesive includes modified metal oxide particles, dilution monomer, acrylate prepolymer and photoinitiator;The modifier of modified metal oxide particles is selected from one or more than two combinations of stearic acid, sodium stearate and polyoxyethylene stearate.The adhesive can effectively shorten the construction time, reduce energy consumption and be more environmentally friendly in the process of flexible composite pipe repair.

The invention belongs to the technical field of nylon materials, and particularly relates to a nylon composite material as well as a preparation method and application thereof. The nylon composite material is prepared from the following raw materials: nylon resin, a nano-branched carbon fiber material and spheroidal graphite. The nano-branched carbon fiber material comprises carbon fibers and carbon nanotubes, and the carbon nanotubes are grafted on the surfaces of the carbon fibers through amido bonds. According to the invention, CNTs are grafted on the surface of CF through amido bonds to form a branched structure. The grafting method is different from traditional physical mixing and can realize tight combination of the CF / CNTs and the nylon matrix on the molecular level, so that the interface bonding strength of the fiber and the matrix is remarkably improved. Meanwhile, a three-dimensional foam network structure is constructed in a nylon matrix through the spherical graphite and the nano-branched carbon fiber material with the branched structure, complex electric conduction and heat conduction paths can be formed in the material through the structural design, and the electromagnetic shielding effect of the composite material is effectively improved.