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Preparation method for bonding material for energy-saving lamp

A technology for bonding materials and energy-saving lamps, applied in the direction of monocarboxylate copolymer adhesives, adhesives, adhesive types, etc., can solve the problems of degumming, cracking, easy failure, etc. The effect of good performance and simple process

Inactive Publication Date: 2012-11-07
NANTONG JINNIU MACHINERY MFR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most energy-saving lamp manufacturers in my country use white glue and yellow glue, which have high-temperature discoloration, cracking, and degumming. Although silicone sealant has good bonding performance, it has the problems of high price and easy failure.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Preparation of polyvinyl acetate emulsion: first add 10kg of polyvinyl alcohol and 200kg of deionized water into the reactor, heat the reactor to 70°C, stir until the polyvinyl alcohol is completely dissolved; then cool the reactor to 50°C, add Surfactant OP-10 of 1kg, sodium dodecylbenzenesulfonate of 1kg, vinyl acetate monomer of 35kg are heated up to 70 ℃ after stirring evenly, and the weight percentage of adding 2kg is 20% potassium persulfate aqueous solution, Stir evenly, then drop 70kg of vinyl acetate monomer evenly within 3 hours, and add 5kg of potassium persulfate aqueous solution with a weight percentage of 20% in 3 times at the same time to form an intermediate solution; heat up to 80°C and keep it warm for 1 hour , and then cooled to below 50°C with NaHCO 3 The aqueous solution adjusts the pH value of the intermediate liquid to 6, adds 5 kg of dibutyl phthalate, stirs and then cools and discharges.

[0026] Preparation of crosslinked silicone emulsion: fi...

Embodiment 2

[0029] Preparation of polyvinyl acetate emulsion: first add 30kg of polyvinyl alcohol and 150kg of deionized water into the reactor, heat the reactor to 90°C, stir until the polyvinyl alcohol is completely dissolved; then cool the reactor to 60°C, add Surfactant OP-10 of 3kg, sodium dodecylbenzene sulfonate of 3kg, vinyl acetate monomer of 40kg, be warmed up to 75 ℃ after stirring, add the ammonium persulfate aqueous solution that the percentage by weight of 5kg is 10%, Stir evenly, then drop 80kg of vinyl acetate monomer evenly within 4 hours, and add 10kg of ammonium persulfate aqueous solution with a weight percentage of 20% in 4 times at the same time to form an intermediate solution; heat up to 85°C and keep warm for 0.5 hours , and then cooled to below 50°C with NaHCO 3 The aqueous solution adjusts the pH value of the intermediate liquid to 7, adds 15kg of dibutyl phthalate, and cools the mixture after stirring.

[0030] Preparation of cross-linked silicone emulsion: fi...

Embodiment 3

[0033] Preparation of polyvinyl acetate emulsion: first add 20kg of polyvinyl alcohol and 180kg of deionized water into the reactor, heat the reactor to 80°C, stir until the polyvinyl alcohol is completely dissolved; then cool the reactor to 55°C, add Surfactant OP-10 of 2kg, sodium dodecylbenzene sulfonate of 2kg, the vinyl acetate monomer of 30kg, be heated up to 72 ℃ after stirring evenly, add the potassium persulfate aqueous solution of 15% by weight of 3kg, Stir evenly, then drop 60kg of vinyl acetate monomer evenly within 3.5 hours, and add 8kg of potassium persulfate aqueous solution with a weight percentage of 15% in 3 times at the same time to form an intermediate solution; heat up to 82°C and keep warm for 0.8 hours , and then cooled to below 50°C with NaHCO 3 The aqueous solution adjusts the pH of the intermediate solution to 6.5, adds 10 kg of dibutyl phthalate, stirs and then cools and discharges.

[0034] Preparation of cross-linked silicone emulsion: First, mix...

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PUM

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Abstract

The invention discloses a preparation method for a bonding material for an energy-saving lamp. The bonding agent prepared by the conventional method has high price and loses efficacy easily. The preparation method comprises the following steps of: preparing polyvinyl acetate emulsion and crosslinking organic silicon emulsion respectively; stirring the polyvinyl acetate emulsion, the crosslinking organic silicon emulsion and polyethylene glycol propyl trimethoxy silane uniformly; adding filler powder; and mechanically mixing to obtain a white viscous heat-resistant bonding agent for the energy-saving lamp, wherein 10 to 50 parts of the crosslinking organic silicon emulsion, 0.5 to 1 part of the polyethylene glycol propyl trimethoxy silane and 200 to 300 parts of the filler powder are addedinto 100 parts of the polyvinyl acetate emulsion. By the method, the process is relatively simple and industrialized production can be realized. In the method, the polyvinyl acetate emulsion is compounded with the glycol propyl trimethoxy silane, so the prepared bonding agent for the energy-saving lamp has high bonding strength and high comprehensive properties such as heat resistance, ageing resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a preparation method of an adhesive material for an energy-saving lamp. Background technique [0002] Lighting electricity consumption accounts for about 12% of the total electricity consumption of the whole society. With economic development and improvement of people's living standards, electricity consumption will further increase. Compared with ordinary incandescent lamps, energy-saving lamps save 60-80% of electricity and have a service life of 4-6 times longer. According to the manufacturing process of energy-saving lamps, in the production of energy-saving lamps, adhesives must be used to bond between the plastic parts of energy-saving lamps and the glass with lamp tubes. At present, most energy-saving lamp manufacturers in my country use white glue and yellow glue, which have high-temperature discoloration, cracking, and degumming. Although silicone ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J131/04C09J183/04C09J183/06C09J183/07C09J11/08C08F118/08C08G77/14C08G77/20C08G77/06
Inventor 袁求理
Owner NANTONG JINNIU MACHINERY MFR