33results about How to "Product environmental protection" patented technology

The invention provides a method for preparing a superabsorbent resin used in a polymer gel fire extinguishing agent, comprising: mixing acrylic acid with sodium hydroxide or sodium carbonate aqueous solution to prepare a neutralizing liquid; Crosslinking agent, initiator and adhesion promoter to prepare polymerization solution; polymerize to obtain super absorbent resin; cut into particles with a diameter of 10-20mm and further make super absorbent resin with a particle size of 40-150 mesh particles. The method has simple process, and the superabsorbent resin prepared by the method is convenient to use and has excellent fire extinguishing effect.

The invention provides a technology for processing film-coated iron. The technology for processing film-coated iron comprises the following steps that a cold-rolled thin collared steel plate (chrome-coated iron) subjected to surface chrome coating treatment is unreeled by an unreeling machine, then is cleaned up, is dried and is put into a preheating device for preheating; and the preheated steel plate is treated by a film pressing device so that the preheated steel plate and a plastic film are compounded by heating. The invention also provides a device for processing film-coated iron. The technology and the device for processing film-coated iron have the advantages that high efficiency, environmentally friendly and low-cost steel plate surface coating is realized; a production process is environmentally friendly; a product has good impact resistance and corrosion resistance; toxic low-molecular residues are not produced; and the technology and the device accord with a modern industrial large-scale production idea of low carbon and environmental protection.

The invention discloses a multi-functional laminated iron production line. The multi-functional laminated steel production line comprises a cold rolled base plate unwinding device, a seam welder, two S turning roller sets, a first or / and second thin film release device, an iron sheet laminating device and a laminated iron winding machine, which are sequentially arranged in a conveying direction of metal base plates; the metal base plate from the seam welder enters the iron sheet laminating device after being tensioned and rectified, and a first thin film or / and second thin film is / are fed into an iron sheet laminating machine after rectification, so that the iron sheet laminating machine covers one surface or two surfaces of the metal base plate with the first thin film or / and the second thin film to form single-sided or double-sided laminated iron, the single-sided or double-sided laminated iron is fed into the other S turning roller set by the iron sheet laminating machine to be tensioned, and the tensioned single-sided laminated iron is wound by the laminated iron winding machine. The multi-functional laminated iron production line can produce both low-temperature bonded laminated iron and high-temperate melted laminated iron, is advanced iron laminating equipment capable of realizing efficient and continuous production, and can be well adaptive to the change of market requirement.

Buckle type attachment elements, such as for belts, watch bands, or the like, and / or for securing or fastening elements (e.g., for footwear, handbags, briefcases, containers, or other objects) may be produced in a manner that generates minimal waste materials, without the use of metal or mechanical hardware type connectors, from completely recyclable materials, without the need for molding, without the use of plastics, and / or without the use of adhesives or cements. Such buckle elements may include a buckle portion and a tongue portion formed from the same material. In some structures, the tongue portion may be made from a part cut out to form the buckle portion. In other structures, the tongue portion may be formed by cutting slits into a base substrate that also makes up the buckle portion. Final products and methods of making such products also are described.

The invention discloses a waterproof material for aluminum alloy doors and a preparation method of the material. The waterproof material comprises a component one and a component two, and solves the technical problems that waterproof coatings of aluminum alloy doors and windows in the prior art have poor mechanical properties and weak waterproof durability, and are not environmentally friendly enough and the like. The waterproof material is used on aluminum alloy doors and realizes technological effects such as high waterproof impermeability, long service life, safety, environmental protection, and the like on the aluminum alloy doors.

Embodiments of the present invention provide a broadband and arbitrary polarization microwave absorbing material and a preparation method, wherein the structure of the arbitrary polarization microwave anechoic chamber absorbing material is: a wave plate with the same absorbing ability for arbitrary polarized electromagnetic waves The square honeycomb periodic structure formed by inter-embedding, the surface of the microwave anechoic chamber absorbing material with any polarization is: the surface coated with conductive paint, and the absorbing frequency range of the microwave anechoic chamber absorbing material with any polarization is 0.1 ~110 GHz, when the microwave anechoic chamber absorbing material provided by the embodiment of the present invention is used as the absorbing material for the antenna test anechoic chamber, the test measurement accuracy can be improved and the error in the antenna polarization performance test can be reduced.

The invention relates to a clean production method of TPO modified TPU superfine fiber synthetic leather. The cleaning production method includes: using superfine fiber synthetic leather base cloth as the base material, and using a continuous impregnation manner to perform hydrophilic treatment to obtain hydrophilic superfine fiber synthetic base cloth; using a calendaring production line to add surface-layer materials into a kneading machine, kneading, feeding the kneaded surface-layer materials into an internal mixer, performing internal mixing, feeding the mixed materials into a plasticator, plasticating, feeding the plasticated materials into a calendaring machine, calendaring into a surface-layer thin film, allowing the surface-layer thin film to attach to the hydrophilic superfine fiber synthetic base cloth, and reeling to obtain a semi-finished product; knurling the semi-finished product to obtain the TPO modified TPU superfine fiber synthetic leather. The clean production method has the advantages that no organic solvents are used in the method, so that solvent pollution is avoided; the method is simple to operate and stable in process; the produced TPO modified TPU superfine fiber synthetic leather is excellent in mechanical performance and good in quality.

The invention discloses a preparation method of salt-resistant and detergent-resistant seaweed fiber, which is through introducing an auxiliary agent containing borate radicals, contacting and infiltrating the finished seaweed fiber with the auxiliary agent solution, and selecting suitable raw materials, ratios and reaction conditions , Prepared salt-resistant and detergent-resistant seaweed fibers. The preparation method of the present invention solves the problems of the seaweed fiber and its textiles that are not resistant to salt and detergent, and the seaweed fiber and its textiles modified by borate radicals have good salt resistance and can withstand the washing of alkaline detergents. The swelling degree of seaweed fiber modified by additive solution can be reduced to 39.8% after soaking in 30°C physiological saline for 72 hours, and the swelling degree can be reduced to 55.3% after soaking in standard detergent for 24 hours, and the fiber maintains its original shape. There is no obvious dissolution phenomenon, and at the same time, the self-flame-retardant performance of the seaweed fiber can be maintained.