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87results about How to "With smoke suppression" patented technology

Expansive type dripping-resistant flame retardant and preparation method thereof

The invention relates to a method for preparing an expansive type dripping-resistant flame retardant. The method is characterized by comprising the following steps: mixing phosphorus-containing copolymerization type flame retardant and dihydric alcohol, reacting under the conditions of the temperature of 70-170 DEG C and the pressure of 0.01MPa below zero to 0.096MPa below zero for 4-10 hours, thereby preparing a flame-retardant esterification fluid; and enabling the flame-retardant esterification fluid to react with diamine and ethanol under the conditions of the temperature of 60-140 DEG C and the pressure of 0.01MPa below zero to 0.096MPa below zero for 4-10 hours, adding a dripping-resistant agent and an inorganic flame retardant, thereby preparing the expansive type dripping-resistant flame retardant. The expansive type dripping-resistant flame retardant prepared by the invention has the advantages of high flame retardant efficiency, high temperature resistance, dripping resistance, smoke suppression and small influence on mechanical properties of materials, the flame retardant grade reaches the V-0 level in the UL-94 standard, and the limit oxygen index is over 32 percent. The expansive type dripping-resistant flame retardant can be used for flame-retardant nylon, polyesters and other engineering plastics, also can be applied to the field of fiber textiles and has wide market prospects.
Owner:CHENGDU TALY TECH CO LTD

High-grade environment-friendly flame-retardant fiberboard and manufacturing method thereof

The invention discloses a high-grade environment-friendly flame-retardant fiberboard and a manufacturing method thereof. Wood chips are used as raw materials and hot-ground to obtain fibers, auxiliary raw materials are added to the fibers, and the high-grade environment-friendly flame-retardant fiberboard is manufactured. Each cubic meter of the high-grade environment-friendly flame-retardant fiberboard is composed of, by weight, 580-630kg of fibers, 7-9kg of paraffin, 200-230kg of adhesive (the solid content ranges from 40% to 50%), 0.2-0.3kg of curing agent, 1.0-2.0kg of coloring agent, 38-50kg of fire retardant and appropriate water. The manufacturing method of the high-grade environment-friendly flame-retardant fiberboard comprises the working procedures of hot-grinding, mixing, drying, shaping, hot-pressing, edge cutting and sanding. Production processes are simple, technical parameters are accurate, process reliability is strong, production efficiency is high, and the high-grade environment-friendly flame-retardant fiberboard produced in the manufacturing method is good in flame retardant property, low in formaldehyde emission and excellent in physical and mechanical performance.
Owner:GUANGXI UNIV

Flame-retardant toughening HPVC (polyvinyl with high degree of polymerization)/ABS (acrylonitrile butadiene styrene) composite material and preparation method thereof

The invention belongs to the field of engineering plastics and particularly relates to a flame-retardant toughening HPVC (polyvinyl with high degree of polymerization)/ABS (acrylonitrile butadiene styrene) composite material and a preparation method thereof. The preparation method of the flame-retardant toughening HPVC/ABS composite material comprises the following steps: putting 100 parts by mass of HPVC powder, 0.5-3.0 parts by mass of a thermal stabilizer, 0.5-5.0 parts by mass of a plasticizer, 0.2-1.0 part by mass of a lubricant, 0.2-1.0 part by mass of an antioxidant and 5-20 parts by mass of a halogen-free flame retardant into a high-speed mixer and mixing; then, pouring 40-100 parts by mass of ABS resin, 10-40 parts by mass of POE-g-MAH and 5-20 parts by mass of CPE (chlorinated polyethylene) into the mixer and performing secondary mixing to obtain HPVC/ABS mixed materials, pouring the obtained HPVC/ABS mixed materials into a hopper of a twin-screw extruder, and pelletizing after extruding to prepare flame-retardant toughening HPVC/ABS raw material particles. The finally prepared HPVC/ABS composite material has the advantages of flame resistance, smoke suppression, low cost, impact resistance, easiness in processing, and the like, and can be used for preparing various high-strength flame-retardant electrical appliance shells.
Owner:LIAONING TECHNICAL UNIVERSITY

Environment-friendly flame-retardant non-adhesive fiberboard of crop straw and preparation method thereof

The invention relates to an environment-friendly flame-retardant non-adhesive fiberboard of crop straw and a preparation method thereof. The fiberboard is prepared by the following steps that 1 ) wheat straw and sorghum straw are taken to be cut off correspondingly, and the wheat straw and the sorghum straw are soaked in water to obtain a softened material; 2 ) steam explosion is correspondingly carried out on the softened material to obtain wheat straw fiber and sorghum straw fiber; 3 ) nano calcium carbonate, nano zinc oxide are mixed with nano copper oxide, and modifying is carried out toobtain a modified additive A; nano zinc borate, the nano zinc oxide are mixed with the nano copper oxide, and modifying is carried out to obtain a modified additive B; 4 ) the wheat straw fiber and the sorghum straw fiber are mixed with the modified additive A to obtain a core layer mixture; the wheat straw fiber is mixed with the modified additive B to obtain a surface layer mixture; and 5 ) thecore layer mixture is taken as a core layer, the surface layer mixture is taken as a surface layer to be laid and pre-pressed to obtain a slab, after hot-pressing forming and post-treatment are carried out, the environment-friendly flame-retardant non-adhesive fiberboard is obtained. The fiberboard has no formaldehyde release and has good mechanical property, good anti-water, moisture-proof, anti-corrosion and antibacterial properties; and good in fireproof and flame-retardant effects, and suitable for popularization and application.
Owner:霸州市光洋人造板制造有限公司

Halogen-free flame retardant PC/PET alloy material and preparation method thereof

The invention discloses a halogen-free flame retardant PC / PET alloy material and a preparation method thereof. The halogen-free flame retardant PC / PET alloy material comprises, by mass, 10-40% of PC, 50-70% of PET, 5-12% of a compound halogen-free flame retardant master batch, 3-8% of a compatibilizer, 0.5-2% of a dispersant and 0.1-1% of an antioxidant. The halogen-free flame retardant PC / PET alloy material simultaneously has the respective advantages of the PC and the PET, has the high strength and heat resistance of the PC, has the chemical resistance and easy machinability of the PET, and also has excellent comprehensive properties; and the compound halogen-free flame retardant master batch has the characteristics of no halogen, flame retardation, smoke inhibition, non-toxicity, safety, high efficiency, less consumption, use convenience and the like when the compound halogen-free flame retardant master batch is used in the flame retardation modification of the halogen-free flame retardant PC / PET alloy material.
Owner:QINGDAO XINZHAN PLASTIC

Efficient environmentally-friendly fire retardant for wood impregnation, and treatment technology thereof

The invention discloses an efficient environmentally-friendly fire retardant for wood impregnation, and a treatment technology thereof. The efficient environmentally-friendly fire retardant for wood impregnation comprises, by mass, 10-25% of phosphoric acid, 5-10% of borax, 5-10% of boric acid, 30-45% of water-soluble ammonium polyphosphate, 5-30% of aluminum sulfate and 3-6% of ammonium molybdate. Compared with fire retardants in the prior art, the efficient environmentally-friendly fire retardant has smoke elimination and inhibition effects through the addition of ammonium molybdate, contains P, N and B fire retardation components, and has the advantages of good fire retardation effect, no halogen, low toxicity, no irritation, no corrosion, good stability in the use process, difficult degradation or loss, abundant sources of raw materials, low cost and use convenience.
Owner:高天红

PBT environment-friendly and flame-retardant material toughened and reinforced by blending elastomer and micrometer particles

The invention discloses a PBT environment-friendly and flame-retardant material toughened and reinforced by blending elastomer and micrometer particles. The PBT environment-friendly and flame-retardant material comprises components by mass: 50%-70% of PBT, 18%-25% of a halogen-free flame retardant, 5%-20% of elastormer, 5%-20% of the micrometer particles, 0.1%-0.5% of a surface treating agent, 0.2-1.5% of a lubricant, 0.1%-1% of an antioxidant and 0-0.5% of a light stabilizer. Compared with a conventional PBT material, the prepared PBT has high notch impact strength and good toughness, keeps relatively good strength, and can greatly increase rigidity, heat resistance and processability. At the same time, the used halogen-free flame retardant has the advantages of security, smoke-suppressing, no toxicity, environment protection and low cost. The PBT material has high flame-retardant property and excellent comprehensive properties, and can be used as materials for preparing electronics, electrics, automobile industries and mechanical components.
Owner:QINGDAO XINZHAN PLASTIC

Structural flame-retardant functional composite material and preparation method thereof

The invention provides a structural flame-retardant functional composite material which comprises a flame-retardant fireproof fiber felt and a composite material, and the surface of the composite material body is coated with the flame-retardant fireproof fiber felt. The invention further provides a preparation method of the structural flame-retardant functional composite material. The preparationmethod comprises the following steps: (1) preparing the flame-retardant fireproof fiber felt; (2) pre-impregnating the fiber felt; and (3) preparing the flame-retardant composite material. Compared with the prior art, a surface flame-retardant structure is adopted, the flame-retardant functional structure layer with the functions of flame retardance, heat insulation, smoke suppression and the likeis concentrated on the surface of the composite material based on the combustion behavior that the composite material expands from outside to inside after being ignited, and in the process that the composite material is on fire, the structure can be used as a fireproofing suit to isolate flame and heat outside the composite material so that the internal structure of the material is protected, andthe damage of a flame retardant to the composite material matrix is avoided.
Owner:NINGBO NOTTINGHAM NEW MATERIALS INST CO LTD +1

Whisker/silicone rubber composite and preparation method thereof

The invention discloses a whisker / silicone rubber composite and a preparation method thereof. The preparation method includes the steps that A, 100 parts of vinyl polysiloxane compound rubber, 20-30 parts of white carbon black and 3 parts of first polysiloxane by mass are kneaded for at least 4 h at the temperature of 30-80 DEG C, and base rubber is obtained, wherein first polysiloxane is hydroxyl-terminated polysiloxane with the average molecular weight of 610-1,110; B, the base rubber and 24-60 parts of magnesium sulfate whiskers or magnesium borate whiskers by mass are kneaded for at least 3 h at the temperature of 30-80 DEG C, and a rubber compound is obtained; C, the rubber compound and 2-5 parts of vulcanizing agent by mass are mixed on a double-roller machine, a first mixture is obtained, the first mixture is pressurized and vulcanized for 20 min-30 min in a press vulcanizer at the pressure of 9 MPa-11MPa and the temperature of 165 DEG C-175 DEG C, the pressure is kept for at least 1 h, cooling is conducted, and then the whisker / silicone rubber composite is obtained. The whisker / silicone rubber composite prepared through the preparation method is further disclosed. The whiskers serve as flame retardant of the whisker / silicone rubber composite, and the advantages of being low in toxicity, stable, capable of abating smoke and the like are achieved.
Owner:QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI

Novel environmentally-friendly cable splice closure sealant and preparation method thereof

The invention discloses a novel environmentally-friendly cable splice closure sealant and a preparation method thereof, and belongs to the technical field of preparation of sealants. The sealant comprises silicone rubber, a flame retardant, butyl rubber, medium molecular weight polyisobutylene, low molecular weight polyisobutylene and an antioxidant. The preparation method comprises the followingsteps: S1, weighing: weighing the raw materials for later use; S2, kneading: adding and kneading the raw materials; S3, blending: blending the obtained kneaded rubber compound; and S4, extruding: extruding the blended rubber compound, and cooling and cutting the extruded rubber compound to obtain the novel environmentally-friendly sealant. The sealant of the invention has excellent adhesion, flameretardancy, filling property, sealing property, water resistance, high and low temperature resistance, acid resistance, alkali resistance, salt resistance and dielectric property; preparation materials of the sealant do not contain solvents or halogens, so the sealant is environmentally friendly; and the preparation method has the characteristics of simple production process, time saving and energy saving, and is suitable for industrial large-scale production.
Owner:SICHUAN TIANYI COMHEART TELECOM

High-flame-retardant organic phosphate fire-proof plate capable of insulating heat and oxygen and suppressing smoke and preparation method thereof

The invention relates to a high-flame-retardant organic phosphate wheat straw fire-proof plate capable of insulating heat and oxygen and suppressing smoke and a preparation method thereof. The high-flame-retardant organic phosphate wheat straw fire-proof plate is characterized by being prepared by the steps of: adding a high-flame-retardant organic phosphate flame retardant with high flame retardance, low smoke and no toxic gas and a silica sol binder with high binding power, serving as additive accessories, into processed wheat straws, stirring, and molding at high temperature and high pressure. The high-flame-retardant organic phosphate wheat straw fire-proof plate can achieve the purposes of uniformly insulating heat and oxygen, suppressing smoke, retarding inflaming and preventing fire. The flame-retardant and fire-proof components of the high-flame-retardant organic phosphate wheat straw fire-proof plate can not volatilize or lose, and the decoration performance of wood is maintained. The high-flame-retardant organic phosphate wheat straw fire-proof plate is a new-generation green product with the advantages of smoke suppressing capability, no toxicity, no obvious pungent odor, and better environment friendliness and safety in the performances of fire prevention and flame retardance.
Owner:刘方旭
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