44results about How to "The preparation process is economical and practical" patented technology

The invention discloses water-based coil steel repair paint and a preparation method thereof. The water-based coil steel repair paint comprises a primer and a finish paint, wherein the primer comprises modified acrylic resin, a pH regulator, a film forming additive, a defoaming agent, a crosslinking agent, an anti-flash rust agent, a surfactant, a mildew preventive, a wetting agent, a thickening agent and water; the finish paint comprises modified acrylic resin, a pH regulator, a film forming additive, a defoaming agent, a dispersant, a crosslinking agent, an anti-flash rust agent, filler, cellulose, a surfactant, a mildew preventive, a wetting agent, a thickening agent and water. The water-based coil steel repair paint has excellent water resistance, alkali resistance and quick drying property, thereby having excellent rust-carrying construction capability as a whole; when the paint is used for coil steel repair, all that is required is that a substrate is treated simply to enable thesurface rust-removing grade to reach Sa1 grade, and coating can be performed with conventional methods such as rolling coating and spraying, so that construction is convenient.

The invention discloses a hot vulcanization type flame-retardant silicon rubber composite material and a preparation method of the composite material. The composite material is obtained from hot vulcanization type silicon rubber raw rubber and hydrotalcite-like compounds containing zinc, boron and iron through mixed smelting and vulcanization. The preparation method of the material comprises the following preparation steps that firstly, the hot vulcanization type silicon rubber raw rubber and the hydrotalcite-like compounds containing zinc, boron and iron in the proportioning quantity are subjected to uniform mixed smelting; then, vulcanizing agents are added, and sheet discharge is carried out after the uniform mixed smelting; and finally, the vulcanization is carried out. The hot vulcanization type flame-retardant silicon rubber composite material provided by the invention has obvious flame-retardant and smoke suppression performances, and in addition, the physical mechanical performance is excellent. In addition, the preparation process of the composite material is economic and practical, the controllability is high, the cost is low, the large-scale production is easily realized, and the practicability is realized.

The invention discloses a montmorillonite-modified silicon rubber nanocomposite and a preparation method thereof. The montmorillonite-modified silicon rubber nanocomposite comprises the following components in parts by weight: 90-92 parts of component A, 8-10 parts of component B, 0.1-0.3 part of catalyst and 1-3 parts of organic montmorillonite, wherein the component A is crude ethenyl (or isoallyl)-containing terminated silicon rubber; the component B is hydrogen-containing polysiloxane; the catalyst is chloroplatinic acid or other soluble platinic compound; the organic montmorillonite is hyperbranched quaternary ammonium salt modified organic montmorillonite; and the montmorillonite is taken as a reinforcing material of silicon rubber. The prepared silicon rubber nanocomposite has the advantages of: (1) higher mechanical property and heat resistance, (2) higher processability, (3) more economical and practical preparation technology; and the characteristics play an important role in making the silicon rubber / organic montmorillonite nanocompoiste practical.

The invention discloses flame-retardant supermolecular silicone rubber and a preparation method thereof. The flame-retardant supermolecular silicone rubber is prepared from components in parts by mass as follows: 90-95 parts of a component I, 5-10 parts of a component II, 0.3-0.5 parts of a catalyst and 5-15 parts of supermolecular glass fiber through mixing and curing, wherein the component I is polysiloxane containing vinyl end groups, the component II is hydrogen-containing polysiloxane, and the supermolecular glass fiber is obtained by wrapping glass fiber with multiple layers of supermolecular films formed by self-assembling diphosphonate and ferrous chloride on the basis of coordination bonds. The supermolecular glass fiber is added to silicone rubber, so that the prepared silicone rubber has high flame retardance, mechanical property, dimensional stability and heat stability, and the use range of the silicone rubber is broadened; besides, the preparation technology is economical and practical, the preparation process is simple, the cost is low and large-scale production is easily realized.

The invention discloses a water-based quick-drying coil coating based on monodisperse polyacrylic acid resin and a preparation method thereof. The water-based quick-drying coil coating includes varnish and / or color paint, and the varnish includes water-based monodisperse polyacrylic resin, isopropanol, film-forming aid, defoamer, deionized water, anti-flash rust agent, wetting agent Wetting agent, thickener; the color paint includes water-based monodisperse polyacrylic resin, isopropanol, dispersant, defoamer, pigment and filler, anti-flash rust agent, film-forming aid, deionized water, wetting agent , Thickener. The coating of the present invention is not only environmentally friendly and free from solvent pollution, but also has good dispersibility, good film-forming property and high gloss, and has excellent properties such as alkali resistance, corrosion resistance and water resistance, especially excellent fast Dry performance, adhesion, flexibility and hardness have reached a balance between hardness and flexibility, and the comprehensive performance is excellent, suitable for coiled steel.

The invention discloses a modified graphene waterborne polyurea resin as well as a preparation method and application thereof. The modified graphene water-based polyurea resin is made of isocyanate-modified sulfonated graphene in an organic solvent and first reacts with isophorone diisocyanate, then reacts with polyetheramine, and then extends with polyetheramine chain extender. Chain reaction, then react with hydrophilic chain extender, then neutralize with neutralizing agent, finally add deionized water to disperse evenly and remove organic solvent to obtain, the isocyanate modified sulfonated graphene is obtained by isocyanate Modified sulfonated graphene. The water-based polyurea coating prepared by applying the modified graphene water-based polyurea resin of the present invention is environmentally friendly, convenient in construction, good in coating adhesion, not easy to peel off, and has excellent mechanical properties and anti-corrosion properties.

The invention discloses a composite separation membrane based on an in-situ grown organic framework structure of a fluorine-containing copolymer, a preparation method and an application thereof. Random copolymerization of a certain proportion of perfluoro-2,2-dimethyl-1,3-dioxole (PDD), tetrafluoroethylene (TFE) and amino-terminated olefins can be further modified by reaction fluorine-containing copolymers, mixed with PDD-co-TFE binary copolymers in different proportions, and formed into membranes, through the Schiff base reaction, the covalent organic framework structure sheets are grown in situ on the surface of the membrane substrate, and the functional The group is introduced into the framework structure to form a coordination structure, and a fluorine-containing copolymer composite separation membrane is obtained. The composite separation membrane prepared by the method of the present invention significantly enhances the binding force between the fluorine-containing copolymer layer and the organic framework structure layer through amine bridging, and realizes the adjustable internal pore size through the internal structure modification of the pores of the organic framework structure layer , can efficiently and selectively separate organic gases and inorganic gases (oxygen, carbon dioxide, etc.), and has extremely high practical value.

The invention discloses water-based coil steel repair paint and a preparation method thereof. The water-based coil steel repair paint comprises a primer and a finish paint, wherein the primer comprises modified acrylic resin, a pH regulator, a film forming additive, a defoaming agent, a crosslinking agent, an anti-flash rust agent, a surfactant, a mildew preventive, a wetting agent, a thickening agent and water; the finish paint comprises modified acrylic resin, a pH regulator, a film forming additive, a defoaming agent, a dispersant, a crosslinking agent, an anti-flash rust agent, filler, cellulose, a surfactant, a mildew preventive, a wetting agent, a thickening agent and water. The water-based coil steel repair paint has excellent water resistance, alkali resistance and quick drying property, thereby having excellent rust-carrying construction capability as a whole; when the paint is used for coil steel repair, all that is required is that a substrate is treated simply to enable thesurface rust-removing grade to reach Sa1 grade, and coating can be performed with conventional methods such as rolling coating and spraying, so that construction is convenient.

The invention discloses a functional type powdery paint and a preparation method thereof. The functional type powdery paint is composed of the following components in parts by weight: 50 to 60 parts of resin, 3 to 5 parts of curing agent, 15 to 25.5 parts of silica micro powder / opal / graphene composite, 4 to 9 parts of titanium dioxide, and 3 to 6 parts of calcium carbonate. By adding a silica micro powder / opal / graphene composite into the powdery paint, under the synergetic effect of silica micro powder, opal, and graphene, the functions of the powdery paint such as negative ion releasing, sterilizing, air purifying, and the like, are enhanced; at the same time, the properties such as high temperature resistance, corrosion resistance, impact resistance, wear resistance, hardness, and the like, are strengthened; the powdery paint is enabled to have multiple functions; the application range of the powdery paint is enlarged; furthermore, the preparation technology is economic and practical, the preparation process is simple, the cost is low, no any special instrument or severe condition is needed, and massive production can be realized easily.

The invention discloses a light-weight, high-strength, high-electromagnetic shielding performance material and a preparation method thereof. The material is formed by mixing and reacting polyether polyol slurry and polyisocyanate. Polyether polyol slurry is composed of mixed polyether polyol, composite carbon nanotubes, catalyst, foam stabilizer and water. Among them, the mixed polyether polyol is formed by mixing one or more polyether polyols in a certain proportion; the composite carbon nanotube is prepared by carbon nanotube A and carbon nanotube B through a preferred ratio, and the carbon nanotube A The length is 10 to 20 times the length of the carbon nanotube B. The method for preparing mixed polyether polyol is S1; the method for preparing polyether polyol slurry is S2; the method for mixing polyether polyol slurry with polyisocyanate and reacting and foaming to form polyurethane electromagnetic shielding material is S3. The polyurethane electromagnetic shielding material obtained by the invention can simultaneously realize light weight and high shielding efficiency of the material, and meanwhile, the material has good mechanical properties.