33results about How to "Give full play to the synergistic flame retardant effect" patented technology

The invention relates to a preparation method of an MF (melamine-formaldehyde) resin-coated Mg/Al-LDHs (magnesium/aluminum-layered double hydroxide) microcapsule. The preparation method comprises the following steps of firstly mixing melamine and formaldehyde according to a molar ratio of 1 to (2 to 4), so as to prepare a clear and transparent MF prepolymer; then, using deionized water as a dispersing medium, and preparing a flame retardant agent Mg/Al-LDHs into a core emulsion under the action of an emulsifying agent; using an in-situ polymerizing method to coat the MF prepolymer around capsule core emulsion droplets, adjusting the pH (potential of hydrogen) value of a solution to weak acid, and enabling the MF prepolymer to further complete condensation reaction at the surface of the Mg/Al-LDHs, so as to generate an insoluble latticed crosslinking structure, and form a capsule wall with certain thickness and strength; finally, using absolute ethyl alcohol to wash for multiple times, drying at the temperature of 60 DEG C, and grinding, so as to obtain the MF-coated Mg/Al-LDHs microcapsule. The preparation method has the advantages that the synergistic flame-retardant function of the nitrogen flame-retardant agent and the Mg/Al-LDHs is fully realized, and the problem of poor dispersivity and compatibility of the flame-retardant agent in a substrate is solved; meanwhile, the preparation technology is simple, and the cost is low.

A halogen-free flame retardation polycarbonate material comprises, by weight, 70-90% of polycarbonate, 5-10% of other resins, 6-15% of a halogen-free flame retardant, 5-15% of a surface modifier, 3-10% of a flexibilizer, 0.6-2.5% of an antioxidant,0.4-2.5% of a lubricant and 0.3-1.2% of a weather resisting agent. The halogen-free flame retardation polycarbonate material fully performs a synergistic flame retardation effect, substantially improves the flame retardation performance of a PC material, has the advantages of high efficiency, no toxicity, low smoke and dropping resistance, excellent flame retardation performance, excellent mechanical performances, good processing fluidity, high thermal deformation temperature, good impact resistance, moderate cost, and suitableness for industrial application.

The invention relates to a preparation method of capsule-coated magnesium hydroxide fire retardant, comprising the following steps: adding magnesium hydroxide micropowder into water to prepare aqueous phase component suspension; mixing a free radical polymerization monomer, a cross-linking agent and an initiator, and evenly stirring to prepare into an oil phase component; adding the prepared oil phase component into the aqueous phase component suspension, and evenly stirring to obtain mixed liquor; heating the mixed liquor, stirring, and lowering the temperature to room temperature; filteringand separating the mixed liquor; separating out the magnesium hydroxide capsule; washing the magnesium hydroxide capsule to obtain a magnesium hydroxide capsule wet cake; and drying to obtain the capsule-coated magnesium hydroxide fire retardant, wherein the binding force of a coating layer and the magnesium hydroxide formed by the free radical polymerization monomer, the cross-linking agent and the initiator is strong. The capsule-coated magnesium hydroxide fire retardant has the advantages of good compatibility of the coating layer and a high polymer matrix material, large interface bindingforce, evenly dispersed magnesium hydroxide micropowder, cooperated inflaming retarding of the magnesium hydroxide and the capsule, and high inflaming retarding efficiency.

The invention discloses a high-performance environment-friendly kraft liner paperboard which comprises a bottom layer, a surface layer and a coating layer which are sequentially arranged from bottom to top. Wherein the bottom layer is prepared from a bottom layer pulp consisting of modified wood powder pulp and short fiber pulp; the surface layer is prepared from a surface layer pulp consisting oflong fiber pulp and short fiber pulp; the coating layer is formed by coating flame-retardant styrene-acrylic latex on the surface layer; the long fiber pulp and the short fiber pulp are formed by pulping domestic old corrugated cartons; a flame-retardant styrene-acrylic latex is composed of a modified composite flame retardant, functionalized modified styrene-acrylic latex and water. The flame retardant is added in a composite flame-retardant latex metering roller type coating mode, loss is avoided, the cost is low, and the addition of the flame retardant has no adverse effect on the strengthof paper. Besides, the prepared kraft liner paperboard is good in flame retardance, the kraft liner preparation product is produced from full waste paper, the process is environmentally friendly, thefunctionalized modified styrene-acrylic latex is water-soluble latex, no organic solvent exists, and the environmental protection property is improved.

The invention discloses EPS flame-retardant masterbatch and a preparation method thereof and belongs to the technical field of flame-retardant masterbatch production. The EPS flame-retardant masterbatch is prepared from the following raw materials in parts by weight: 60-80 parts of polystyrene, 30-40 parts of brominated SBS, 20-30 parts of methyl octabromo ether, 5-10 parts of graphite masterbatch, 3-5 parts of barium stearate, 3-8 parts of aluminium dioxide, 2-6 parts of polyethylene wax, 3-8 parts of talc powder and 4-9 parts of an antioxidant 1010. The flame retardance of the EPS flame-retardant is improved greatly as a result of synergistic effects of raw material components, and the EPS flame-retardant masterbatch is good in temperature resistance and small in adding amount. High performance flame retardance is achieved with a relatively low adding amount, and the production process is simplified and the cost is lowered.

The invention relates to an anti-static and high-flame-retardant ABS (acrylonitrile butadiene styrene) composite material and a preparation method thereof. The anti-static and high-flame-retardant ABS composite material is prepared from following raw materials in parts by weight by processing: 60-80 parts of ABS resin, 40-60 parts of PC resin, 5-10 parts of EPDM resin, 6-10 parts of an antioxidant, 5-8 parts of nano-silver, 8-12 parts of a compound flame retardant and 5-8 parts of a low-temperature-resistant plasticizer. The compound flame retardant and an anti-static agent are used in the composite material, the ammonium polyphosphate-diatomite/magnetic ordered mesoporous nickel ferrite compound flame retardant is prepared from phosphoric acid and urea as main raw materials as well as diatomite and magnetic ordered mesoporous nickel ferrite as carriers through in-situ polymerization, and a synergistic flame retardant effect of ammonium polyphosphate with silicon, iron and nickel can be exerted sufficiently, so that the ABS composite material has good flame retardant performance and anti-static performance.

The invention relates to a low-temperature-resistant and high-flame-retardant ABS composite material and a preparation method thereof. The low-temperature-resistant and high-flame-retardant ABS composite material is prepared from the following raw materials in parts by weight: 60 to 80 parts of ABS resin, 40 to 60 parts of PC resin, 5 to 10 parts of EPDM resin, 6 to 10 parts of an anti-oxidant, 5 to 8 parts of nanometer silver, 8 to 12 parts of a composite flame retardant and 5 to 8 parts of a low-temperature-resistant plasticizer. According to the invention, the composite flame retardant is used in the composite material; with phosphoric acid and urea as main raw materials, and diatomite and magnetic ordered mesoporous nickel ferrite as carriers, an ammonium polyphosphate-diatomite/magnetic ordered mesoporous nickel ferrite composite flame retardant is prepared through in-situ polymerization, so synergistic and flame-retardant effects among ammonium polyphosphate, silicon element, iron element and nickel element can be fully exerted; thus, good flame retardance of the ABS composite material is obtained.

The invention relates to an anti-aging and high flame retardant ABS composite material and a preparation method thereof. The anti-aging and high flame retardant ABS composite material is prepared from 80 to 100 parts by weight of ABS resin, 40 to 60 parts by weight of PC resin, 5 to 15 parts by weight of EPDM resin, 6 to 10 parts by weight of an antioxidant and 8 to 12 parts by weight of a compound flame retardant. The preparation method comprises pouring concentrated phosphoric acid having a concentration of 85% into a reactor, carrying out heating stirring, adding an appropriate amount of urea into the mixture when the temperature rises to 60 to 80 DEG C, adding an appropriate amount of diatomite and magnetic ordered mesoporous nickel ferrite powder when the temperature rises to 120 to 125 DEG C, carrying out a stirring reaction process for 10 to 20min, curing the product at a temperature of 280 to 320 DEG C for 1 to 2h, and crushing the product through a nano-crusher to obtain the anti-aging and high flame retardant ABS composite material. The preparation method utilizes phosphoric acid and urea as main raw materials, diatomite and magnetic ordered mesoporous nickel ferrite as carriers and an in-situ polymerization method to prepare the ammonium polyphosphate-diatomite/magnetic ordered mesoporous nickel ferrite composite flame retardant and can give full play to synergistic flame retardant effects of ammonium polyphosphate and silicon, iron and nickel so that the ABS composite material has good flame retardant properties.

The invention relates to a preparation method of an anti-aging high-flame-resistant ABS automotive interior trim. The preparation method comprises the following steps: S1, putting high-flame-resistant ABS material particles in a stirring machine, carrying out stirring fusion at the temperature of 110 to 120 DEG C, and cooling a fused material to 60 to 80 DEG C for later use; S2, rolling the fused material in the step S1 to form a sheet material, using rolling equipment to roll the fused material at the temperature of 60 to 80 DEG C, then cooling the sheet material formed by rolling to room temperature, and forming the sheet material with the thickness of 5 to 10 mm; S3, cutting the sheet material to form a blank, performing hot-pressing on the blank to form the automotive interior trim, using hot-pressing equipment to perform hot-press on the blank under the hot-press pressure of 1000 to 1200 kN at the hot-press temperature of 65 to 75 DEG C, and thus forming the high-flame-resistant ABS automotive interior trim. The anti-aging high-flame-resistant ABS automotive interior trim is formed by processing the following raw material in parts by weight: 80 to 100 parts of ABS resin, 40 to 60 parts of PC resin, 5 to 15 parts of EPDM resin, 6 to 10 parts of an antioxidant and 8 to 12 parts of a composite flame retardant. The flame-resistant ABS plastic disclosed by the invention has relatively high flame resistance, is used for manufacturing the automotive interior trim, and is reliable in quality and high in safety.

The invention discloses a high-strength water-resistant and flame-retardant plain paper and a preparation method thereof, and relates to the technical field of flame-retardant paper. The high-strength water-resistant and flame-retardant plain colored paper of the present invention uses styrene, butyl acrylate, etc. Sodium alkyl sulfate and nonylphenol polyoxyethylene ether were used as emulsifiers, persulfate was used as initiator, sodium bicarbonate was used as buffer, organically modified montmorillonite was used as modifier, and montmorillonite was synthesized by pre-emulsified seed emulsion polymerization Desoil modified functionalized styrene-acrylic latex; then compound it with flame retardants containing various flame-retardant elements to obtain flame-retardant styrene-acrylic latex, and then use the surface coating method to coat the flame-retardant styrene-acrylic latex on the The surface of plain paper base paper, just dry. The plain colored paper prepared by the invention has excellent dry and wet tensile strength, excellent water resistance and good flame retardancy, and the invention has advanced preparation technology, no pollution and low production cost, and has broad market application prospects.

The invention relates to a highly flame-retardant ABS material for automobile interior parts and preparation method of material. The highly flame-retardant ABS material is prepared from, by weight, 80-120 parts of ABS resin and 8-12 parts of composite flame retardant. The composite flame retardant is prepared by the steps of adding 85% strong phosphoric acid into a reactor, heating and stirring, raising the solution temperature to 60-80 DEG C, adding suitable amount of urea, continuing heating until the temperature reaches 120-125 DEG C, adding suitable amount of diatomite and magnetic ordered mesoporous nickel ferrite powder, stirring for reaction for 10-20 minutes, curing the product under 280-320 DEG C for 1-2 hours, finally pulverizing with nano pulverizer to acquire the composite flame retardant. The phosphoric acid and urea are used as the main materials, the diatomite and magnetic ordered mesoporous nickel ferrite powder are used as the carriers, and through the method of in-situ polymerization, the ammonium polyphosphate-diatomite/magnetic ordered mesoporous nickel ferrite composite flame retardant is prepared. The synergistic flame retardant functions between the ammonium polyphosphate and the elements of silicon, iron and nickel are fully exerted to make the ABS material possess prominent flame retardant performance.