30results about How to "Excellent combustion resistance" patented technology

Provided is a polyol composition for the production of polyurethane resins that enables the production of a polyurethane foam which, even when the foam has a reduced density, exhibits excellent mechanical properties such as hardness and excellent flame resistance (flame retardance). The present invention is a polyol composition (A) for the production of polyurethane resins which comprises a compound (a1) having a vinyl-polymerizable functional group represented by general formula (I) and a strength improver (a2) represented by general formula (II). In general formula (I), R is hydrogen, C1-15 alkyl, or C6-21 aryl. In general formula (II), R1 is a residue derived from an active-hydrogen-containing compound by removing one active hydrogen atom; Y is a residue derived from an at least divalent aromatic polycarboxylic acid (f) by removing the carboxyl groups; a is an integer satisfying the relationship: 1 <= a <= (the number of substituents on the aromatic ring - 1); Z is a residue derived from an at least m-valent active-hydrogen-containing compound by removing the m active hydrogen atoms; and m is an integer of 1 to 10.

The heat insulating composite foamed phenolic plate for building includes one heat insulating foamed phenolic plate produced with foamed phenolic resin 100 weight portions, polyurethane 10-25 weight portions, epoxy resin 0.5-5 weight portions, fire retardant 10-20 weight portions, surfactant 0.5-2 weight portions, polyglycol 5-15 weight portions, glass fiber 0.5-2 weight portions, foam homogenizing agent 5-10 weight portions, foaming agent 5-10 weight portions and acid curing agent 5-10 weight portions; and one sprayed layer in the surface of the heat insulating foamed phenolic plate and comprising cement 100-150 weight portions, water 80-100 weight portions, emulsion of acrylate copolymer 90-110 weight portions, hydroxyethyl cellulose 3-6 weight portions and defoaming agent 0.5-2 weight portions. The heat insulating composite foamed phenolic plate has high toughness, less pulverizing, high strength and good construction performance.

The invention discloses a compound material used for a high-speed train and a manufacturing method thereof. A fiberglass strengthening aluminum alloy layer panel with an upper layer and a lower layer of fiberglass is adopted to replace pure aluminum alloy panel in the prior art, and the form of vicarious joint is carried out at the inside of the fiberglass strengthening aluminum alloy layer panelby an aluminum alloy thin plate and a high-strengthening fiberglass reinforced epoxy resin layer plate to realize the continuity of large panels. The compound material of the invention has excellent qualities such as light weight, high intensity, high anti-fatigue property, high impact damage tolerance, high burning resistance property, etc.

The invention discloses an epoxy resin composition, its application and a filling material for the epoxy resin composition. Specifically, the present invention can provide a thermally conductive epoxy resin composition containing magnesium oxide powder that can be easily prepared by kneading, has improved fluidity, has excellent formability, and has good water absorption (low water absorption). The epoxy resin composition of the present invention is characterized in that it contains an epoxy resin, a curing agent, and magnesium oxide powder surface-treated with an alkoxysilane having at least one of a phenyl group and an amino group. In addition, the present invention can provide a thermally conductive epoxy resin composition containing magnesium oxide powder, which is preferably further excellent in combustion resistance. The epoxy resin composition of the present invention can be suitably used as a thermally conductive sealing material, a thermally conductive sheet, a thermally conductive adhesive, and a cured product.

The invention belongs to the technical field of lithium ion batteries, and in particular relates to a lithium ion battery electrolyte and a lithium ion battery. The lithium ion battery electrolyte includes a lithium salt, a non-aqueous organic solvent and an additive, and the additive includes a thiophene having the structure of formula I Phosphate ester compound additive A, polyphenolic compound additive B having the structure of formula II, and negative electrode film-forming additive C. Compared with the prior art, the lithium ion battery electrolyte provided by the present invention with both flame retardant properties and electrochemical properties is achieved through the combination of thiophene phosphate compound additives, polyphenol compound additives, negative electrode film-forming additives and lithium salt type additives. Due to the synergistic effect, the electrolyte has excellent film-forming performance on the surface of the electrode, so that the lithium ion battery has good electrochemical performance and safety performance, thereby solving the problem that the flame retardant performance and electrochemical performance of the battery in the prior art cannot be taken into account.

The invention discloses a multi-core inorganic mineral insulated flexible fireproof cable and a preparation method thereof, and relates to the technical field of power cables, including a cable including a cable core, an inorganic mineral insulating layer, a filling layer, an inorganic mineral wrapping tape, a metal tube composite layer, Oxygen barrier layer and flame-retardant outer sheath, the cable core is formed by twisting multiple groups of conductive cores, and the outside of each cable core is covered with inorganic mineral tape, and the filling layer is set on the surface covered with inorganic mineral insulating layer. Between the cable core and the inorganic mineral tape. The cable has good flexibility, flame retardancy, and excellent mechanical impact resistance and waterproof performance under fire conditions.

The invention provides the use of a resin composition in preparing an insulating substrate or a copper-clad laminate, belonging to the field of electronic materials. The resin composition is prepared from the following raw materials by weight: 9,000-10,000 parts of a cyclic olefin compound containing one or two double bonds and at least one bridged ring, and 0.1-10 parts of a ruthenium carbene catalyst. The invention adopts the specific resin composition to prepare the insulating substrate, and the further prepared copper clad laminate can not only effectively improve the glass transition temperature of the copper clad laminate or the insulating substrate, but also can effectively reduce the dielectric loss during use and meet the application requirements of high frequency and high speed communication. At the same time, the insulating substrate or copper clad laminate prepared by the resin composition has good combustion resistance and dip soldering resistance, is not easy to absorb water, and is more suitable for preparing electronic materials. In addition, the preparation method is safe and environmentally friendly. The resin composition of the present invention prepares an insulating substrate, and the prepared copper clad laminate can be used for high-frequency and high-speed communication, especially 5G communication, and has good application prospects.