Flame-retardant silicon rubber, LED (Light-Emitting Diode) all-color transparent silica gel facepiece and preparation method thereof
A technology of silicone rubber and rubber, which is applied in the field of polymer material technology and LED display, can solve the problem that the transparent silicone mask of LED full-color screen cannot meet the flame retardancy, transparency, and light transmittance performance at the same time, so as to ensure transparency and transparency. The light rate, the effect of solving flame retardancy and balancing mechanical properties
Inactive Publication Date: 2013-04-24
SHENZHEN AOTO ELECTRONICS
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Problems solved by technology
[0008] One of the technical problems to be solved by the present invention is to provide a kind of flame-retardant silicone rubber, which solves the problem that the silicone rubber used for making transparent silicone masks for LED full-color screens cannot meet the flame-retardant requirements at the same time due to the addition of flame retardants. Sexuality and transparency, light transmittance performance issues
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0028] Before making the present invention, we once wanted to add reinforcing agent, flame retardant, vulcanizing agent and structure control agent to ordinary silicone rubber raw rubber for mixing, and then pressurize and heat the mixed material in the mold Molding, vulcanization, and finally secondary vulcanization in an oven to prepare transparent silicone masks for LED full-color screens. However, it has been found through experiments that since the flame retardant is added to the mixed silicone rubber, although it can endow the silicone rubber with flame retardancy and self-extinguishing properties, it can also inhibit the decomposition and gasification of the polymer, so that the silicone rubber products can be used in high-temperature and high-heat environments. To achieve the purpose of flame retardant and fire prevention, but it will directly affect the transparency and light transmittance of silicone products, so this method is currently unfeasible.
[0029] In order...
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Abstract
The invention discloses a flame-retardant silicon rubber, an LED (Light-Emitting Diode) all-color transparent silica gel facepiece prepared by adopting the same and a preparation method thereof. The flame-retardant silicon rubber is prepared by mixing composites which include a reinforcing agent, a vulcanizing agent, a structure controlling agent and a methyl phenyl vinyl silicone rubber with 20%-40% of phenyl content. The preparation method comprises the following steps of: pressurizing and heating the flame-retardant silicon rubber in a mould by using a vulcanization forming machine; and keeping the state that the forming pressure is 45-60 kilograms / cm<2> and the forming temperature is 120-130 DEG C for 10-30 minutes to vulcanize and form the flame-retardant silicon rubber so that the LED all-color transparent silica gel facepiece is prepared. The LED all-color transparent silica gel facepiece prepared through the preparation method of the LED all-color transparent silica gel facepiece, which is disclosed by the invention, by adopting the flame-retardant silicon rubber disclosed by the invention can be used for solving the problems of flame-retardant property and equilibrium mechanical property of a silicon rubber without adding a fire retardant because the methyl phenyl vinyl silicone rubber with 20%-40% of phenyl content is used and ensuring the transparancy and light transmittance of the prepared LED all-color transparent silica gel facepiece.
Description
technical field [0001] The invention relates to the technical field of polymer materials and LED display technology, in particular to a flame-retardant silicone rubber, a transparent silicone mask for LED full-color screens prepared by using the flame-retardant silicone rubber, and a transparent silicone mask for LED full-color screens method of preparation. Background technique [0002] The application range of LED full-color screens is more and more extensive, and it can be used in various occasions such as indoor and outdoor advertising, sports, transportation, performances, exhibitions, leasing, and gatherings. With the rapid development of modern technology, my country's LED full-color screen industry continues to grow at a high rate with an average annual growth rate of 40%, and the industrial scale continues to expand. However, on April 21, 2012, the sudden fire incident at the Yijunchuo Hotel in Hong Kong sounded a wake-up call for the entire LED industry. While the...
Claims
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IPC IPC(8): C08L83/07C08L83/06C08K13/02C08K3/36C08K5/14C08K5/098C08K5/09C08J3/24B29C43/58
Inventor 叶强朱凌吴振志吴涵渠
Owner SHENZHEN AOTO ELECTRONICS