3results about How to "Prevent oxidation deterioration" patented technology

The application discloses high-strength composite cement blanket and belongs to the technical field of civil engineering composite materials. The application improves the three-dimensional fabric structure: a three-dimensional weaving is adopted to form a top layer, a middle layer and a bottom layer, wherein the middle layer is formed by a honeycomb three-dimensional structure formed by interweaving vertical fiber filaments and horizontal oblique fiber filaments which are arranged obliquely relative to the vertical fiber filaments; the vertical fiber filaments connect the top layer and the bottom layer; and the horizontal oblique fiber filaments pass through the vertical fiber filaments in an S-shaped wiring mode multiple times to form limiting knots which are distributed in the top layer, the middle layer and the bottom layer to form an overall tensile strength reinforcing structure. The three-dimensional fabric can be combined with a "two cloth and one film" protective layer and a solidifiable composite material containing gold steel sand. The application realizes isotropic reinforcement through the honeycomb structure and builds a mechanical occlusal interface through the S-shaped limiting structure, thereby significantly improving the bending strength, interface adhesion and waterproof durability of the cement blanket, and the application is suitable for slope protection, trench lining and temporary road paving engineering and the like.

The present application relates to the technical fields of compound synthesis and catalysis, and particularly relates to a precursor compound for preparing a ruthenium catalyst with an oxygen-locked chain type semi-sandwich structure, an intermediate and a preparation method thereof, the precursor compound has the following general formula: wherein R1 is a p-toluenesulfonyl group or a methanesulfonyl group. The synthesis path of the precursor compound is shown as follows: The present application also provides application of the precursor compound in preparation of a key intermediate of a ruthenium catalyst. The method has mild reaction conditions (0-50 DEG C), simple operation, high yield, and the raw materials are easy to obtain, and the purification process is simple, and is suitable for industrialized production.

The invention belongs to the technical field of artificial turfs, and discloses a wear-resistant and temperature-resistant artificial turf and a preparation method thereof.The wear-resistant and temperature-resistant artificial turf comprises nylon, a back cloth material and filling particles, the proportion of the nylon to the back cloth material to the filling particles is 60: 30: 10, the back cloth material is polyvinyl chloride, the filling particles comprise rubber particles and silica sand, a UV stabilizer is added into the nylon, and the UV stabilizer is added into the silica sand. The nylon is coated with the antioxidant, the surface of the nylon is sprayed with the wear-resistant coating, the UV stabilizer is phenyltriazine, the antioxidant is a phenolic compound, the weather resistance of the grass fibers is enhanced through the arrangement of the UV stabilizer, the antioxidant and the wear-resistant coating, the antioxidant prevents the grass fibers from being oxidized and degraded in a thermal environment, and the wear resistance of the grass fibers is improved. The service life of the artificial lawn is prolonged, the filling particles need to be evenly spread on the surface of the lawn so as to ensure the flatness and stability of the lawn, and the anti-aging coating coated on the surface of the lawn can effectively delay the aging process of the lawn under the conditions of high temperature and exposure to the sun.