48results about How to "Improve hydrophobic mobility" patented technology

A polyolefin insulator material with long-term water-repellent properties, composed of 40-55 parts of polyethylene, 30-50 parts of polypropylene, 8-20 parts of decabromodiphenylethane, 3-7 parts of trioxide The composition consists of antimony, 0.2-0.5 parts of antioxidant, 0.5-1.5 parts of silicone, 0.2-0.5 parts of light stabilizer and 1-10 parts of modified silicone oil. The modified silicone oil composition is prepared by reacting fatty acid and side-chain amino silicone oil under nitrogen protection at 80-150°C for several hours, and is used as a hydrophobic migration agent for polyolefin insulating materials. The invention is used for the polyolefin insulator sheath / sheath, which meets the requirements of the insulator on electrical insulation, flame retardancy and mechanical performance, and also endows it with long-term and effective performances such as hydrophobicity, hydrophobicity migration and antifouling.

The invention discloses a processing technology of a slow-release long-acting super hydrophobic anti-pollution flashover coating. The processing technology comprises the following steps: first, preparing hydroxypropyl-terminated fluorinated polysiloxane, hydroxyl-terminated polysiloxane and hydrophobic fumed silica; second, adding the hydroxypropyl-terminated fluorinated polysiloxane and hydroxyl-terminated polysiloxane together with 107 silicone rubber, nano zinc oxide, oil amino oleate, mica powder and aluminum hydroxide into a mixer, stirring uniformly, and grinding for 3-4 times on a three-roller machine to obtain a uniform sizing material; third, adding the uniform sizing material into a kneading machine, adding the hydrophobic fumed silica, heating to 145-150 DEG C, kneading for 1-2 hours and cooling to 20-30 DEG C; and after that, adding a ketoxime crosslinking agent, dimethylamino propylamine, a silane coupling agent and an organic solvent, and stirring uniformly to obtain slow-release long-acting super hydrophobic anti-pollution flashover coating. In the coating prepared by the preparation method disclosed by the invention, the aims of slow release and pollution prevention can be achieved through the combination of the hydroxypropyl-terminated fluorinated polysiloxane and hydroxyl-terminated polysiloxane, and the hydrophobicity transfer of the coating can be remarkably improved.

The invention belongs to the technical field of preparation of electrical insulating materials, and in particular relates to an epoxy resin insulating material and its preparation method and application. The raw materials of the epoxy resin insulating material include 92-107 parts of epoxy resin, 20-50 parts of silicone modified resin and 130-190 parts of filler, and the Si-CH in the silicone modified resin 3 The molar content is 23.33%‑47.17%. This insulating material contains a large amount of Si‑CH 3 The silicone modified resin can modify the epoxy resin, which can make the epoxy resin have better hydrophobicity and water repellency. At the same time, the silicone modified resin can also form a network crosslinked structure with the epoxy resin, improving The mechanical strength and impact strength of epoxy resin insulation materials; by adding fillers to the epoxy resin, the hydrophobicity, low-temperature brittleness and impact strength of the epoxy resin can be further improved in combination with physical filling modification technology.

The invention discloses an improved Type-1 slow-release long-acting superhydrophobic anti-pollution-flashover paint which is composed of the following raw materials in parts by weight: 35-45 parts of hydroxypropyl-terminated fluorine-containing polysiloxane, 20-30 parts of hydrogen-terminated polysiloxane, 55-65 parts of 107 silicone rubber, 20-30 parts of hydrophobic fumed silica, 3-5 parts of nano zinc oxide, 2-4 parts of amino oleate, 4-6 parts of nano calcium carbonate, 1-3 parts of ketoxime crosslinking agent, 5-10 parts of talcum powder, 1-2 parts of silane coupling agent, 1-2 parts of decabromodiphenyl oxide and 165-175 parts of organic solvent. The improved Type-1 slow-release long-acting superhydrophobic anti-pollution-flashover paint has the advantages of high mechanical properties, long service life (up to 15 years), favorable flame retardancy (Grade FV-0), favorable salt fog aging resistance and excellent pollution resistance, can still be effective in the smog pollution days, achieves the expected anti-pollution-flashover effect, and avoids the pollution flashover accident.

The invention belongs to the technical field of rubber, and proposes a super-hydrophobic electric rubber, comprising: 30-50 parts of filler, 0-10 parts of sodium polyacrylate, 60-150 parts of sodium silicate, 10-12 parts by mass. Parts of dimethyldiethoxysilane, 3-4 parts of vinyl silane coupling agent, 1-2 parts of ethyl orthosilicate, 0-3 parts of pigment, 10-15 parts of white carbon black, 35-55 parts of γ ‑Trifluoropropylmethicone, 10‑15 parts hydroterminated polysiloxane, 8‑15 parts α‑vinyl‑α, ω‑dialkoxypolydimethylsiloxane, 3 parts ‑15 parts structuring control agent, 5‑12 parts vulcanizing agent, 150‑180 parts water, 5‑8 parts silica, 3‑6 parts aluminum hydroxide, 4‑6 parts polypropylene fiber, 1‑2 parts 2 , 5‑Dimethyl‑2, 5‑di-tert-butylperoxyhexane. Through the above technical solution, the problem of insufficient hydrophobic migration of rubber in the prior art is solved.