A high-performance adhesive for energy-saving lamp caps
A technology for energy-saving lamps and adhesives, used in adhesives, non-polymer adhesive additives, monocarboxylic acid ester copolymer adhesives, etc., can solve the problems of short life, low heat resistance and environmental pollution of adhesives , to achieve the effect of low cost, long service life and simple production process
Inactive Publication Date: 2016-04-20
FUJIAN YUNYE ELECTRONICS TECH
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AI Technical Summary
Problems solved by technology
In recent years, domestic energy-saving lamp manufacturers have begun to use water-based adhesives that add inorganic fillers and various additives to emulsions. The existing emulsion lamp head adhesives are still inconvenient in construction. Before the lamp head glue is injected, the copolymerized emulsion viscose must be mixed with water. After proportioning, use a mixer to stir until a specific viscous paste; low heat resistance, the greater the power of the energy-saving lamp, the shorter the life of the adhesive; and anti-aging agents and anti-mold agents must be added to prevent the lamp head glue from yellowing and mildewing Change and other characteristics
The life of energy-saving lamps is mainly affected by the life of the lamp tube and the life of the ballast, and the life of the lamp tube is more due to the aging and falling off of the lamp cap glue at the connection between the lamp tube and the lamp holder. The existing lamp cap glue technology can basically only reach The working life lasts for 8,000 hours. As a product that will cause environmental pollution after being discarded, energy-saving lamps have a longer life and greater significance to society.
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0011] A preferred embodiment of the present invention:
[0012] 1. At room temperature, mix 4% polyvinyl alcohol, 55% vinyl acetate, 16% acrylate, 1.4% plasticizer, 1.4% emulsifier, 0.2% buffer, 10% by weight ~40% hydrophobic agent, 40~60% water; the above materials are placed in a reaction kettle and heated with steam at 70~80°C to make a PVAc emulsion, which will slowly solidify when stored at 0~40°C. When needed to use, take the corresponding amount of solidified emulsion and knead vigorously several times to soften it back to the emulsion state.
[0013] 2. At room temperature, put 75Kg of the PVAc prepared in step 1, 15Kg of 706 type VAE and 30Kg of 400D type styrene acrylic acid copolymer emulsion into a vertical double paddle stirring pot and stir at a speed of 56R / min for 5 minutes, and then add it without stopping the machine. 25kg of distilled water, 400Kg of 400 mesh filler material with a moisture content lower than 0.23%, stir for 10 minutes, add 1Kg of hydrophi...
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Abstract
The invention discloses an adhesive for a high performance energy-saving lamp holder, in particular to an adhesive using mixed polyvinyl acetate (PVAc) emulsion, vinyl acetate-ethylene copolymer emulsion (VAE emulsion) and styrene acrylic copolymer emulsion as the main raw materials, and a dispersing agent, a filler and water as the accessory materials. Through the idea of emulsion blending, the developed adhesive has the characteristics active sleep function, high temperature resistance and long service life. The adhesive uses easily available raw materials, has simple usage process, low cost, no release of hazardous materials in the curing process, and belongs to the environment-friendly products; and through experiments, the energy-saving lamps using the adhesive can be used continuously for more than 12000 h without degumming, and show remarkable progress significance.
Description
technical field [0001] The present invention relates to an adhesive, especially a mixed polyvinyl acetate (PVAc) emulsion, vinyl acetate-ethylene copolymer emulsion (VAE emulsion) and styrene acrylic acid copolymer emulsion as main ingredients, aluminum oxide, aluminum hydroxide, dispersant High-performance energy-saving lamp holder special adhesive with filling materials as auxiliary materials. Background technique [0002] Cash China produces more than 90% of the world's energy-saving lamps each year, reaching more than 5 billion, and the connection between the lamp cap and the lamp tube of the energy-saving lamp is mainly glued by the lamp cap. In recent years, domestic energy-saving lamp manufacturers have begun to use water-based adhesives that add inorganic fillers and various additives to emulsions. The existing emulsion lamp head adhesives are still inconvenient in construction. Before the lamp head glue is injected, the copolymerized emulsion viscose must be mixed w...
Claims
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IPC IPC(8): C09J131/04C09J123/08C09J125/14C09J11/04
Inventor 张承辉
Owner FUJIAN YUNYE ELECTRONICS TECH