7 results about "Cobalt naphthenate" patented technology

The application relates to the field of flame-retardant technology, and particularly discloses a flame-retardant thermal expansion type foaming microsphere and a preparation method thereof. The thermal expansion type foaming microsphere has a core-shell structure and sequentially comprises a capsule core, an inner layer capsule wall and an outer layer flame-retardant capsule wall from inside to outside. Raw materials of the outer layer flame-retardant capsule wall include a phosphazene flame retardant, cobalt naphthenate and cyclohexanone peroxide. The flame-retardant thermal expansion type foaming microsphere provided by the application is coated with the phosphazene flame retardant which does not contain halogen, and the combination and coating rate of the phosphazene flame retardant and the foaming microsphere are improved through the cobalt naphthenate and the cyclohexanone peroxide, so that the flame-retardant efficiency and the flame-retardant stability of the foaming microsphere are significantly improved. In addition, the cobalt naphthenate and the cyclohexanone peroxide can promote the phosphazene flame retardant to degrade rapidly when a fire occurs, so that a dense carbon layer is rapidly formed on the surface of the foaming microsphere, and good flame-retardant and ablation-resistant effects are achieved. Therefore, the foaming microsphere has good foaming performance and flame-retardant performance, and has a wide application prospect.

This invention provides a castable ablation-resistant coating material and its preparation method. The material is composed of unsaturated polyester resin, cobalt naphthenate, cyclohexanone peroxide, trichloroethyl phosphate, boron phenolic resin, silicon carbide, and hexa(4-aldehyde phenoxy)cyclotriphosphazene. Through optimized compounding design of the coating material, this invention achieves a castable ablation-resistant coating material with an ablation rate as low as 0.11 mm / s and a viscosity as low as 5900 mPa·s. This material possesses both excellent ablation resistance and casting process performance, and has broad application prospects in the casting and coating of solid rocket motor propellants.

The invention discloses a road marking based on laser radar and millimeter wave radar recognition and a preparation method. The road marking comprises a subbase layer, a microwave reflecting layer, a bonding layer and an infrared reflecting layer which are sequentially arranged on a road surface from bottom to top. The subbase layer comprises a binding material; the bonding layer comprises a bonding material and titanium dioxide; the bonding material comprises the following components in parts by weight: 50 parts of methyl methacrylate, 50 parts of a cobalt naphthenate accelerant and 2 parts of dibenzoyl peroxide; the microwave reflecting layer comprises aluminum materials such as microbeads or aluminum sheets; the infrared reflecting layer comprises glass beads with the refractive index not smaller than 1.7. By introducing the infrared reflecting layer and the microwave reflecting layer, the reflecting performance of the road marking in an infrared band and an electromagnetic band is remarkably enhanced, and the probability that the road marking is identified by a multi-mode radar system can be remarkably improved, so that the intelligent sensing performance and the environmental adaptability of the road marking are remarkably improved; the method plays an important role in promoting the development of an intelligent traffic system and the popularization and application of an automatic driving technology.

The invention provides a grouting material for foundation pit leakage repair as well as a preparation method and an application method thereof, and belongs to the technical field of building materials. The grouting material is prepared from the following components in parts by weight: first component slurry which is prepared from 97 to 100 parts of acrylate monomer, 37 to 43 parts of deionized water, 2 to 3 parts of oxidation initiator, 15 to 20 parts of vinyl resin-glycidyl methacrylate microemulsion, 1 to 2 parts of silane coupling agent and 1 to 2 parts of defoaming agent; the second component slurry is prepared from 1 to 3 parts of methyl ethyl ketone peroxide, 0.1 to 0.3 part of cobalt naphthenate and 7 to 10 parts of absolute ethyl alcohol; and the third component slurry comprises 57-63 parts of deionized water, 1-2 parts of a reduction initiator, 4-6 parts of an anti-dilution modifier and 3-4 parts of a cross-linking agent. The grouting material provided by the invention is strong in bonding capacity, high in compressive strength and strong in water-retaining property, is not easily influenced by dilution of water, and can complete foundation pit leakage repair under complex conditions.

This invention provides an ultra-thin, ultra-fast repair material for MMA polymer pavement, along with its preparation and application methods. The material comprises component A and component B. Component A includes methyl methacrylate, acrylic resin, n-butyl methacrylate, 2-ethylhexyl acrylate, urethane acrylate, hydroxypropyl methylcellulose, a composite reinforcing agent, pigments, an ultraviolet shielding agent, and a dispersant. Component B includes benzoyl peroxide, methyl ethyl ketone peroxide, cobalt naphthenate, zinc isooctanoate, and dibutyl phthalate. This ultra-thin, ultra-fast repair material, through optimization of the composite initiator-promoter system, extends the application temperature range to -30°C to 35°C, solving the problems of traditional materials being unable to be applied in winter and the poor durability of thin-layer repair materials. Furthermore, it maintains high curing speed, high strength, and high durability even at low temperatures.

The invention discloses a high-performance formula and a preparation method of pencil wax sealing primer, and particularly relates to the field of paint coating. The method comprises the following steps: by taking a polyurethane prepolymer as matrix resin, grafting mercaptoethanol to a polymer main chain, compounding key components such as surface amino-functionalized nano siloxane particles, 1-adamantane ethanol and fluorinated resin, and then adding an isocyanate cross-linking agent, thereby obtaining the product. The network is composed of a first stable carbamate network formed by isocyanate crosslinking and a second in-situ self-generated dynamic reversible disulfide bond network formed by thiol group oxidative coupling under the catalysis of cobalt naphthenate. The problems that a traditional pencil primer usually adopts a single cross-linked network, so that the durability and the adhesive force of a coating are insufficient are solved, and by introducing a double-layer cross-linked network, the adhesive force of the primer coating is improved, meanwhile, the comprehensive performance of the primer is remarkably improved, and the service life of the primer is remarkably prolonged.

The invention provides low-temperature conductive paste for a perovskite or laminated cell and a preparation method of the low-temperature conductive paste. The low-temperature conductive paste can be applied to the technical field of electronic material preparation or the technical field of photovoltaic cells. The low-temperature conductive paste comprises the following components in parts by mass: 88-93 parts of composite conductive metal powder, 1-5 parts of organic resin, 0.1-3 parts of a curing agent, 0.1-0.5 part of a curing accelerator I, 0.1-0.5 part of a curing accelerator II, 1-5 parts of an organic solvent and 0.1-3 parts of an auxiliary agent, the curing accelerator I comprises at least one of dibutyltin dilaurate, dibutyltin diacetate, zinc acetylacetonate, aluminum acetylacetonate, cobalt naphthenate, zinc naphthenate and tetraisopropyl titanate; the curing accelerator II comprises at least one of nano tin dioxide, nano indium oxide, nano cerium oxide and nano niobium pentoxide. According to the low-temperature conductive paste for the perovskite or laminated cell and the preparation method thereof, the conductivity of the low-temperature conductive paste in a low-temperature curing state can be improved.