Halogen-free inorganic nanometer modified polyurethane electronic flame-retardant film material
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An inorganic nano-polyurethane technology, applied in the field of halogen-free inorganic nano-modified high-performance polyurethane electronic flame retardant film materials, to reduce the formation and diffusion of combustion heat, inhibit thermal degradation, and achieve good flexibility
Inactive Publication Date: 2008-11-05
上海世鹏聚氨酯科技发展有限公司
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[0005] In order to solve the problems existing in the existing electronic flame retardant film technology with halogen flame retardant as the system, the present invention provides a halogen-free inorganic nano-modified polyurethane electronic flame retardant film material, which has non-toxic, low Smoke, high efficiency and other features
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Embodiment 1
[0050] A. Preparation of polyurethane prepolymerized material:
[0051] 35 parts by weight of inorganic nano-silicate, 15 parts by weight of vegetable oil, 40 parts by weight of active hydrogen organic matter, and 0.005 parts by weight of catalyst are heated and dehydrated, and the temperature is controlled at 70-120 ° C. React with 30 parts by weight of isocyanate, heat preservation and stirring. 1-2 hours, the reaction is complete, cool to room temperature for later use;
[0052] B. Preparation of halogen-free inorganic nano-modified polyurethane electronic flame-retardant film material:
[0053] 40 parts by weight of polyurethane prepolymerized material, 4 parts by weight of small molecule polyol, 6 parts by weight of plant, 0.01 part by weight of antioxidant, 4 parts by weight of plasticizer, 45 parts by weight of phosphorus nitrogen flame retardant, 1 part by weight of color paste, Put it into a mixer, heat it to 100-120°C, stir and mix to make a halogen-free inorganic n...
Embodiment 2
[0055] The preparation method of A, polyurethane prepolymerized material is with example 1;
[0056] B. Preparation of halogen-free inorganic nano-modified polyurethane electronic flame-retardant film material:
[0057]36 parts by weight of polyurethane prepolymerized material, 5 parts by weight of small molecule polyol, 4 parts by weight of plant, 0.01 part by weight of antioxidant, 5 parts by weight of plasticizer, 50 parts by weight of phosphorus nitrogen flame retardant, 1 part by weight of color paste, Put it into a mixer, heat it to 100-120°C, stir and mix to make a halogen-free inorganic nano-modified polyurethane electronic flame-retardant material, which is pumped by a gear pump or screw extrusion and then scraped or rolled into a film-forming machine. Halogen-free inorganic nano-modified polyurethane electronic flame-retardant film.
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Abstract
The invention relates to an environmental protective halogen-free inorganic nano-modified polyurethane electronic flame retarding film material. In order to overcome the problems of secondary harmful gas pollution etc. resulted from the burning of the existing halogen electronic flame retarding film, the invention synthesizes a new generation halogen-free environmental protective electronic flame retarding film by taking novel nano-inorganic silicate and phosphorous-nitrogenous compound as a flame retardant and taking polyurethane material as a structure. The halogen-free inorganic nano-modified polyurethane electronic flame retarding film material includes 20-60 part by weight of pre-polymerized material of the inorganic nano-modified polyurethane, 4-10 part by weight of micromolecule polyhydric alcohol, 0-10 part by weight of vegetable oil, 0.01-1 part by weight of antioxidant, 0-5 part by weight of plasticizer, 30-50 part by weight of phosphorus-nitrogen flame retardant, and 0-5 part by weigh of color paste. The halogen-free inorganic nano-modified polyurethane electronic flame retarding film has the characteristics of non-toxicity, low smoke and high efficiency during burning at high temperature, thus meeting the requirements of environmental protection.
Description
technical field [0001] The invention relates to a halogen-free inorganic nano-modified high-performance polyurethane electronic flame-retardant film material. It solves the problem that the existing electronic flame retardant film based on the halogen flame retardant system will cause secondary pollution to the environment by the harmful gas produced when it burns at high temperature. [0002] The invention uses a new type of inorganic nano-silicate flame retardant as a solid-phase flame-retardant barrier, uses a phosphorus-nitrogen flame retardant as a gas-phase flame-retardant barrier, and uses polyurethane materials as a structure to synthesize a new generation of halogen-free and environmentally friendly electronic flame-retardant materials. membrane. When burning at high temperature, it has the characteristics of non-toxic, low-smoke, high-efficiency, etc. It meets the international environmental protection requirements and is suitable for protective materials in the ele...
Claims
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