8results about How to "Good low temperature flexibility" patented technology

The invention discloses a sensing optical cable for detecting vibration, and belongs to the technical field of communication cables, the sensing optical cable for detecting vibration comprises an inner layer sensing optical fiber, a TPEE sleeve, an inner layer water-blocking fiber paste, a PBT sleeve, an outer layer water-blocking fiber paste and an outer sheath in sequence from inside to outside; the inner-layer water-blocking fiber paste and the outer-layer water-blocking fiber paste are both optical fiber filling paste; the optical fiber filling paste is prepared from paraffin-based hydrogenated white oil, poly-alpha-olefin synthetic oil, epoxy vinyl silicone oil, an oil separation inhibitor, a polyisobutene material, siloxane modified polyvinyl alcohol, organic ammonium modified bentonite, ferric acetylacetonate and an antioxidant. The sensing optical cable for detecting vibration is simple in structure, has excellent mechanical strength, toughness, gas barrier property, waterproofness, corrosion resistance, high and low temperature resistance, wear resistance, aging resistance, flame retardance and the like, can still ensure high stability and high sensitivity of optical fiber vibration detection in harsh environments such as underwater or underground, and prolongs the service life of the sensing optical cable.

The invention relates to a low-temperature-resistant anti-skid adhesive material and a preparation method and application thereof, the anti-skid adhesive material comprises a modified HDPE base material layer and an acrylate pressure-sensitive adhesive layer coated on the base material layer, the base material layer comprises HDPE resin, POE elastomer, methyl vinyl silicone rubber, a compatilizer and a peroxide cross-linking agent; the adhesive layer comprises a soft monomer, a hard monomer, a macromonomer containing a polybutadiene chain segment, a functional monomer, a cold-resistant plasticizer, an initiator and a cross-linking agent. The anti-skid adhesive material provided by the invention can still keep high adhesion at a low temperature of-40 DEG C, and has good base material performance and excellent anti-skid performance.

This invention relates to the field of coating technology, and proposes a high weather-resistant alkyd protective coating and its preparation method. The alkyd protective coating comprises the following components in parts by weight: 45-55 parts alkyd resin, 20-42 parts methylphenyl silicone resin, 10-25 parts carbon nanotubes, 1-2 parts dispersant, 0.5-1.5 parts anti-settling agent, 1-2 parts drying agent, and 15-20 parts solvent. This technical solution solves the problems of poor weather resistance and flexibility caused by poor tensile properties, poor low-temperature flexibility, and poor aging resistance in related technologies of alkyd protective coatings.

The invention relates to the technical field of waterproof coiled materials, and particularly discloses a flame-retardant sealant coiled material capable of being constructed at a low temperature and a preparation method of the flame-retardant sealant coiled material. A flame-retardant sealant coiled material capable of being constructed at low temperature comprises a bottom layer, a middle layer and a surface layer, and the middle layer is prepared from the following raw materials in parts by weight: 10-20 parts of butyl rubber; 10 to 20 parts of polyisobutene; 10 to 20 parts of polybutadiene; 5 to 15 parts of tackifying resin; 15-30 parts of an inorganic filler; 10 to 30 parts of a flame retardant; 5 to 10 parts of an antioxidant; 0.5-1 part of an ultraviolet absorbent; 1-5 parts of a coloring agent; the preparation method comprises the following steps: stirring the butyl rubber, the polyisobutene, the polybutadiene, the antioxidant, the ultraviolet absorbent and part of the inorganic filler in a kneading machine, then adding the coloring agent, the flame retardant and the rest of the inorganic filler, and then adding the tackifying resin to obtain a sizing material; and molding the sizing material, compounding the bottom layer and the surface layer, and rolling and laminating to obtain the product. When the flame-retardant sealing adhesive coiled material capable of being constructed at the low temperature is applied, the flame-retardant sealing adhesive coiled material can show better flexibility and viscosity at the low temperature.

The invention discloses a flexible ceramizable prepreg, a new energy automobile battery pack prepared from the same and a preparation method of the flexible ceramizable prepreg, and belongs to the technical field of new energy automobile safety materials. The prepreg is composed of a composite reinforcement body, an elastic ceramic matrix and a multifunctional auxiliary agent, and through the collaborative design of fiber toughening, elastic matrix and gradient ceramic forming, the protection function of rapid ceramic forming at the high temperature within 60 seconds is achieved. The heat conductivity coefficient is less than or equal to 0.1 W / (m.K), the fire-resistant time is more than or equal to 60 minutes, and the thermal runaway spreading of the battery pack can be effectively blocked. The invention further provides a preparation method of the battery pack integrated protection structure adopting the prepreg, through the process combination of module coating, shell compounding and edge sealing, the prepreg is adaptive to special-shaped structures of different models of battery packs, the thermal diffusion protection requirement in GB 38031-2021 Power Storage Battery Safety Requirements for Electric Vehicles is met, and the battery pack integrated protection structure has the advantages of simple process, low cost and wide application prospect. And the safety performance of the new energy automobile battery system is obviously improved.

This invention relates to the field of electrochemical energy storage materials and lithium metal battery technology, specifically to an in-situ polymerized solid electrolyte, its preparation method and application, and lithium metal batteries. This in-situ polymerized solid electrolyte is prepared by heating a ring-opening polymerization reaction using 1,3-dioxolane and 1,1,1-trifluoro-2,3-epoxypropane as reactants, sodium thiosulfate as an initiator, and lithium salt and plasticizer fluoroethylene carbonate as a precursor solution. This electrolyte possesses numerous amorphous regions, which is beneficial for ion transport, enabling the formation of a self-supporting dense structure. It also ensures close contact with the electrode, resulting in a pure interface that effectively reduces interfacial impedance and avoids side reactions at the electrode interface. Furthermore, it enhances oxidation resistance, broadens the electrochemical window, and inhibits dendrite growth. While achieving good mechanical properties, it also improves the cycle stability and safety performance of the battery. It has excellent application prospects in lithium metal batteries, lithium-ion batteries, solid-state energy storage systems, or flexible electronic devices.

The invention discloses a low-temperature-resistant perfluoroether elastomer and a preparation method thereof. The perfluoroether elastomer is mainly prepared by pressurizing, banburying and mixing the following components in parts by mass: 100 parts of perfluoroether rubber, 0-50 parts of reinforcing filler, 0.3-2 parts of vulcanizing agent, 1-6 parts of accelerant and 1-15 parts of fluorosilicone oil, the fluorosilicone oil is formed by carrying out chain extension on vinyl fluorine-containing polysiloxane through hydrogen-terminated silicone oil. According to the low-temperature-resistant perfluoroether elastomer and the preparation method thereof provided by the invention, on the basis of existing perfluoroether rubber, the fluorosilicone oil is added through pressurized banburying, and after primary or secondary vulcanization, the low-temperature brittleness temperature of the low-temperature-resistant perfluoroether elastomer has a relatively good floating effect, and the influence of liquid resistance is relatively small, so that wider application is realized.

The invention provides asphalt for a waterproof coiled material, a preparation method of the asphalt, the waterproof coiled material and a preparation method of the waterproof coiled material, and the asphalt is prepared from the following raw materials in parts by mass: 60-70 parts of intermediate base crude oil and / or naphthenic base crude oil, 0-20 parts of paraffin base crude oil and 20-30 parts of waste tire pyrolysis oil. The raw materials can effectively improve the application of the asphalt in the waterproof coiled material, and enhance the peel strength and low-temperature flexibility of the waterproof coiled material. The viscosity of the waterproof coiled material in the preparation process can be reduced, so that the generation energy consumption is reduced, and the dual benefits of resource recycling and environmental protection are realized.