5results about How to "Environmentally friendly and safe" patented technology

The invention relates to the technical field of heat dissipation materials, in particular to a Bi-In-Sn liquid metal phase change material for chip heat dissipation, a preparation method and a heat dissipation device, and is technically characterized in that the liquid metal phase change material is prepared from the following elements in percentage by mass: 42.0%-48.0% of Bi, 33.0%-40.0% of In and 12%-25% of Sn; the preparation method comprises the following steps: weighing Bi, In and Sn metal particles, and sequentially carrying out acid pickling, ultrasonic cleaning and drying treatment; under the high-purity argon protection environment, the pretreated metal particles are subjected to vacuum melting and stirring, and uniform liquid alloy is formed; and after the liquid alloy is cooled and formed, ultrasonic treatment is conducted, the Bi-In-Sn liquid metal phase change material is prepared, the advantage of low melting point is kept, meanwhile, unexpected improvement of latent heat performance is achieved, and the bottleneck problem of instantaneous thermal runaway of a chip in an extreme environment is effectively solved.

The application discloses a kind of waste tire geotechnical structure and its benzene permeation prevention processing method, processing method includes the following steps: waste mask disinfection treatment;ZnCl2 is dissolved in HCl, preprocessed activated carbon is added, after oscillation stirring, make ZnCl2 solution enter into activated carbon, dry to constant weight, with nitrogen at 850~900 ℃, activated carbon is activated, and ZnCl2 modified activated carbon is obtained;Multiple waste masks are tied together, and ZnCl2 modified activated carbon is wrapped between adjacent waste masks;Fixed on geogrid, the outer layer non-woven fabric of waste mask is towards waste tire, the inner layer non-woven fabric is towards geogrid, and ZnCl2 modified activated carbon is rolled on the tread pattern groove of waste tire;The bottom end of geogrid is fixed with lock catch.The application effectively solves the potential harm generated when waste tire is applied to geotechnical application, expands the application field of waste tire, and reduces the pollution generated when waste tire is used in soil.

This invention belongs to the field of metal rust prevention technology, specifically relating to an environmentally friendly water-based rust-preventive composition, its preparation method, and its application. The composition comprises, by weight, 3-8 parts of a first triazine compound, 1-5 parts of a second triazine compound, 10-20 parts of 2-amino-2-methyl-1,3-propanediol, 2-5 parts of dipropylene glycol monomethyl ether, and 65-85 parts of water. The first triazine compound is a triazine compound having substituents containing hydrophobic segments and at least two aminocarboxylic acid substituents, and the second triazine compound is a triazine compound having thiol substituents. This invention forms a dual-anchored protective film on the metal surface through the two triazine compounds, exhibiting excellent salt spray resistance, damp heat resistance, and film density. It achieves a salt spray test duration of 72 hours, a damp heat test duration of 960 hours, and an adhesion rating of 0. Furthermore, it is free of nitrites, phosphates, and heavy metals. The preparation method is simple, suitable for industrial production, and can be widely applied to metal rust prevention in machinery manufacturing, automotive parts, and other fields.

The vertical quenching furnace comprises a deep well heating furnace, a quenching liquid pool, a feeding port, a discharging port, a heating wire and a communicating structure, the feeding port is formed in the top of the deep well heating furnace, the discharging port is formed in the bottom of the deep well heating furnace, the top of the quenching liquid pool is connected with the discharging port of the deep well heating furnace, and the heating wire is installed on the inner wall of the deep well heating furnace. The furnace pipe is of a detachable structure, the communicating structure is connected with the deep well heating furnace and the quenching liquid pool, the heights and sizes of the quenching liquid pool and the deep well heating furnace are adjusted according to the size of a workpiece, and through the design of vertical hoisting and closed connection, the contact time of the workpiece and air in the process from discharging to quenching is effectively shortened, the oxidation risk is reduced, and the quenching quality is improved; the device has the advantages of reducing temperature difference and hardness difference, improving workpiece quality, being environment-friendly, safe and the like, and is suitable for quenching requirements of different workpieces in different scenes.

The invention discloses a PET film composite silica gel foam material and a preparation method and application thereof.The PET film composite silica gel foam material comprises bottom coating silica gel, foam glue A and foam glue B. The PET film is coated with the bottom coating silica gel, the foam glue A and the foam glue B. The foam glue A comprises, by weight, 30-35 parts of vinyl silicone oil, 26-32 parts of base glue, 1-1.5 parts of a platinum catalyst and 32-38 parts of a flame retardant. The foam B glue is prepared from the following components in parts by weight: 35 to 40 parts of vinyl silicone oil, 20 to 25 parts of base glue, 0.06 to 0.10 part of an inhibitor, 25 to 30 parts of a flame retardant, 6 to 7 parts of a structure control agent, 2 to 3 parts of hydrogen-containing silicone oil and 0.1 to 0.2 part of color paste. The PET film composite silica gel foam material disclosed by the invention has excellent voltage resistance and flame retardance, and also has excellent tear resistance.