5results about How to "High flame retardant level" patented technology

The invention discloses a high-dispersity antimony oxide flame-retardant master batch based on nano modification and a preparation method thereof, and belongs to the technical field of flame-retardant modification of high polymer materials. The flame-retardant master batch consists of the following components in percentage by weight: 30-50% of nano antimony oxide, 3-8% of a dispersion modifier, 40-65% of carrier resin and 1-5% of a dispersing aid. The preparation method comprises the steps of nano antimony oxide pretreatment, mixing, melt extrusion, granulation and the like. Nano antimony oxide is subjected to surface modification through the dispersion modifier, and the synergistic effect of the auxiliary dispersant and the carrier resin is combined, so that the surface energy of the nano antimony oxide is effectively reduced, the problem that the nano antimony oxide is easy to agglomerate in a polymer matrix is solved, and high dispersity is realized; meanwhile, the flame-retardant synergistic efficiency is remarkably improved, the stability of the flame-retardant property of the material is ensured, and the mechanical property and the processing fluidity of a high polymer material are not damaged.

The invention discloses a silane-terminated reactive phosphate flame retardant, a preparation method thereof and application of the silane-terminated reactive phosphate flame retardant in building external wall thermal insulation polyurethane, and belongs to the technical field of macromolecular flame-retardant materials. The structure of the flame retardant is (RO) 3Si-Z-NH-COO-[X-NH-COO] n-Y-O-P (= O) (OCH3) CH3, Z is a C2-C6 alkylene group, X is a C4-C12 alkylene group, n is 1-5, and Y is a C2-C6 hydroxyl-substituted alkylene group, so that not only is good compatibility considered, but also the cohesiveness with a building base material is greatly improved, and the flame retardant can be applied to the field of building materials. A phosphorus-based flame-retardant source, a long-chain flexible spacer group and a hydrolyzable silane end group integrated in a molecular structure serve as polyol components to directly participate in polyurethane reaction, so that the flame-retardant grade and the heat preservation property of the foam are greatly improved.

The invention discloses a thermal insulation material for ultralow-energy-consumption system doors and windows and a preparation method of the thermal insulation material, and relates to the technical field of high polymer materials. The heat insulation material for the door and window of the ultra-low energy consumption system at least comprises the following raw materials in parts by mass: 55-65 parts of PA66 resin; 8 to 15 parts of thermoplastic polyurethane and 5 to 10 parts of polyamide-imide; 18 to 25 parts of activated chopped glass fiber; 3-6 parts of modified nano silicon dioxide coated aerogel microbead heat insulation filler; 2 to 5 parts of a diethyl aluminum phosphinate flame retardant coated with melamine cyanurate; 1-3 parts of a microcapsule expanded graphite flame retardant; 0.3 to 0.8 part of an antioxidant; 0.2 to 0.5 part of a light stabilizer; and 0.5-1 part of a lubricant. The thermal insulation material prepared by the invention has the advantages of ultralow thermal conductivity, efficient flame retardance, low smoke, no toxicity, high dimensional stability and excellent mechanical properties.

This invention discloses a flame-retardant quartz slab and its preparation method, relating to the field of quartz slab technology. The flame-retardant quartz slab is prepared from raw materials comprising the following parts by weight: 70-120 parts quartz particles, 5-15 parts unsaturated polyester resin, 10-30 parts organophosphorus flame retardant, 2-5 parts silane coupling agent, 0.5-2 parts curing agent, 0.1-0.5 parts accelerator, 2-8 parts inorganic filler, and 0.5-3 parts color paste. This invention uses a novel organophosphorus flame retardant, which, compared to traditional flame retardants, effectively improves the flame retardancy rating of the quartz slab, avoids the release of toxic and harmful gases during combustion, and does not require large-dose addition, overcoming the shortcomings of low efficiency of inorganic flame retardants and the environmental unfriendliness of bromine-based flame retardants.

The application belongs to the field of high polymer materials and discloses a kind of flame-retardant non-reinforced nylon composite material, by weight fraction, including the following raw material components: nylon resin 85~94 parts, flame retardant 6~15 parts, dispersing agent 0.1~2 parts, lubricant 0.1~1 part, antioxidant 0.1~1 part, other auxiliary agent 0~3 parts, the flame retardant is sheet-shaped melamine cyanurate;The dispersing agent is spherical dispersing agent with particle size of 10nm~200nm.This application introduces specific MCA flame retardant, and under the action of dispersing agent, gives MCA flame-retardant non-reinforced nylon composite material stable flame-retardant performance, and its flame-retardant grade can be stabilized to reach 0.8mm UL94 V-0 grade, even to 0.4mm UL94 V-0 grade.