Preparation method of fireproof door filling material
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A technology for filling materials and fire doors, which is applied in the field of fire protection to prevent the spread of heat and flames, suppress the generation of open flames, and reduce the concentration
Inactive Publication Date: 2017-03-15
汪培杰
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Problems solved by technology
[0004] Polyamide resin materials are widely used, but because their fire performance is only B1 level, they are restricted in many fields with high fire protection requirements.
Method used
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preparation example Construction
[0020] In an embodiment of the present invention, a method for preparing a fire door filling material comprises the following components by weight: intumescent flame retardant 0.2-0.6, hexabromocyclododecane 10-30, cosolvent 2-9, Zinc borate 15-25, color masterbatch 0.1-3, hydroxide 20-40, antimony trioxide 1-10, flame retardant polyether 15-20, coupling agent 0.05-0.5, expandable graphite 10-20, wood Powder 8-15, titanium dioxide 5-10, foam sheet 5-10, polyamide PA 50-70, carbon forming agent 15-20, borax 12-18, molybdenum trioxide 1-5.
[0021] The intumescent flame retardant is APP.
[0022] The expandable graphite coating is applied once or multiple times in the mold and then dried and demolded before being formed.
[0023] The char-forming agent is one or more of pentaerythritol, glycerol, and ethylene glycol; the stabilizer is one or more of barium stearate, lead stearate, and calcium stearate.
[0024] The auxiliary solvent is bis(2-ethylhexyl) phthalate or bis(2-prop...
Embodiment 1
[0030] Embodiment 1: the preparation of flame-retardant polyether
[0031]A 1.5-meter-high, cylindrical airtight reaction vessel, an arc generator is installed in the reaction vessel, and a microwave generator is arranged at a height of 1.2m on the wall of the reactor. Before the reaction started, the container was filled with nitrogen and carbon dioxide (volume ratio 50:1) after vacuuming, so that the pressure in the container was 80MPa.
[0032] The catalyst is a mixture of 0.6 parts by mass of methanol, 0.5 parts by mass of silicone oil, 0.3 parts by mass of sodium silicate, and 0.1 parts by mass of sodium bicarbonate.
[0033] Rare earth bromide, butylene oxide, catalyst, and polytetrafluoroethylene with mass parts of 1, 0.5, 1.5, and 1.5, respectively, under the reaction conditions of temperature of 560°C, pressure of 75MPa, voltage of 15,000 volts, and microwave frequency of 200GHz, Obtained after 2 hours of reaction.
Embodiment 2
[0034] Embodiment 2: the preparation of flame-retardant polyether
[0035] Equipment and pressure control are the same as in Example 1.
[0036] The catalyst is a mixture of 0.7 parts by mass of methanol, 0.6 parts by mass of silicone oil, 0.5 parts by mass of sodium silicate, and 0.2 parts by mass of sodium bicarbonate.
[0037] The mass parts of cerium bromide, butylene oxide, catalyst, and polytetrafluoroethylene are 1, 0.5, 2.0, and 1.5 respectively. Obtained after 3 hours of reaction.
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Abstract
The invention discloses a preparation method of a fireproof door filling material. The preparation method of the fireproof door filling material comprises the following components in parts by weight: 0.2 to 0.6 part of an intumescent flame retardant, 10 to 30 parts of hexabromocyclododecane, 2 to 9 parts of a cosolvent, 15 to 25 parts of zinc borate, 0.1 to 3 parts of color masterbatches, 20 to 40 parts of hydroxide, 1 to 10 parts of antimonous oxide, 15 to 20 parts of flame-retardant polyether and 0.05 to 0.5 part of a coupling agent. At least one expansible graphite coating layer is provided, the expansible graphite coating layer is heated to form an expanded carbon layer, and a space formed during installation of a fireproof blocking material is full of the expanded coating, and heat and flame can be effectively prevented from spreading, so that the aim of fire retardance is fulfilled; meanwhile, the used self-made flame-retardant polyether is prepared from bromide, polyether and a catalyst under a microwave environment by performing high-temperature, high-air-pressure and high-voltage environment reaction for 3 hours. At high temperature, semi-free-state bromine ions catch high-temperature decomposition activity groups H<+> and OH<-> to generate a stable group, and the reaction continues till decomposition of PA high polymer is finished. The concentration of combustible gases is effectively reduced, so that the aim of inhibiting generation of open fire is fulfilled.
Description
technical field [0001] The invention relates to the field of fire protection, in particular to a preparation method of a fire door filling material. Background technique [0002] An accredited laboratory designated by the Ministry of Economic Affairs, according to the new version of the national standard for fire doors GB_12955-2008 implemented on January 1, 2009, the fire door fire resistance test method has passed the test, and has obtained the verification registration certificate and authorized logo issued by the Standard Inspection Bureau of the Ministry of Economic Affairs , It is called a fire door, and the interior of the fire door is generally filled with fireproof materials to achieve the purpose of flame retardancy. [0003] Polyamide resin is a chemical raw material with excellent performance and wide application. It has toughness, flexibility, strong binding force, wear resistance, oil resistance, water resistance, and enzyme resistance, but it absorbs large wat...
Claims
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Application Information
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