Regeneration method of alkyd resin oil paint waste residues
An alkyd resin, paint waste technology, applied in coatings, polyester coatings, etc., can solve the problems of environmental pollution, extremely high requirements for combustion equipment, large floor space, etc., and achieve the effect of reducing production costs
Inactive Publication Date: 2015-05-27
徐饶春
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Problems solved by technology
Landfill is the easiest way to deal with solid waste, but it not only occupies a large area, wastes a lot of land resources, but also easily causes environmental pollution; alkyd resin paint residue can be incinerated to obtain heat or electricity, but due to the The method has extremely high requirements on its combustion equipment, and it is easy to produce secondary pollution during the combustion process.
Method used
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[0012] Below in conjunction with specific example the present invention is described in further detail:
[0013] First remove the sundries in the 100kg alkyd resin paint waste residue, then add 200kg95% ethanol to the alkyd resin paint waste residue, stir to make the alkyd resin paint waste residue dissolve completely, then add 25kg dodecylbenzenesulfonic acid, 8.3 kg of methylmorpholine and 16.7 kg of dibutyltin dilaurate, stirred evenly, and distilled under reduced pressure at 65°C for 15 minutes to obtain the distilled product. When cooled to 40°C, it was mechanically extruded and cut to obtain a solid alkyd Finished resin paint.
[0014] The original paint of alkyd resin paint and the performance of alkyd resin paint obtained after recycling alkyd resin paint waste residue were tested respectively, and the results are shown in Table 1.
[0015] Table 1
[0016]
[0017] From above-mentioned table 1, can find out, according to the alkyd resin paint that regeneration of...
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The invention discloses a regeneration method of alkyd resin oil paint waste residues, and belongs to the field of utilization of oil paint waste residues. The method comprises the following steps: dissolving the alkyd resin oil paint waste residues by using ethanol with the concentration of 95 percent at first; adding dodecylbenzene sulfonic acid, methylmorpholine and dibutyltin dilaurate in a certain proportion; uniformly stirring; performing pressure reduction and distillation; cooling; and mechanically extruding out and cutting off to obtain a solid-state alkyd resin oil paint finished product. According to the method, the alkyd resin oil paint waste residues are used as productive raw materials, so that the alkyd resin oil paint waste residues are subjected to hazard-free and resource effective treatment, and the production cost of the alkyd resin oil paint can also be reduced.
Description
technical field [0001] The invention belongs to the field of utilization of paint waste residues, in particular to a method for regenerating alkyd resin paint waste residues. Background technique [0002] Alkyd resin paint is a kind of coating with alkyd resin made of polyol, polybasic acid and dry vegetable oil as the main film-forming substance. It can be widely used in the coating of buildings, bridges, ships, vehicles, instruments, meters, etc. [0003] Although alkyd resin paints are widely used, there are more and more alkyd resin paint residues. At present, there are generally two ways to deal with alkyd resin paint residue: landfill and incineration. Landfill is the easiest way to deal with solid waste, but it not only occupies a large area, wastes a lot of land resources, but also easily causes environmental pollution; alkyd resin paint waste can be incinerated to obtain heat or electricity, but due to the The method has extremely high requirements on its combusti...
Claims
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IPC IPC(8): C09D167/08C09D7/00
CPCC09D167/08C08K5/357C08K5/42C08K5/57C09D7/63
Inventor 徐饶春
Owner 徐饶春