Electrostatic spraying PE op-coat paint

Abstract

The invention discloses an electrostatic spraying PE op-coat paint which comprises three components, wherein a main agent comprises air-dried unsaturated polyester resin, ethyl acetate, acetone, styrene and an organic silicon flatting agent; an accelerant is selected from one or two of cobalt iso-octoate and cobalt naphthenate; and an initiator is selected from one or more of benzoyl peroxide, tert-Butyl peroxybenzoate and methyl ethyl ketone peroxide. The preparation method comprises the steps of preparing the main agent firstly under the condition that the weight ratio of the main agent to the accelerant to the initiator is 100: (1-3): (1-3); after the main agent is uniformly mixed, adding the accelerant, and uniformly stirring; and then adding the initiator, and uniformly stirring the obtained mixture, so that the obtained mixture can be subjected to electrostatic spraying. According to the invention, the resistance is controlled by using metal cobalt ions and a high polar solvent acetone under the condition of not using additional conductive agents, so that an effect of electrostatic spraying is achieved, and complex workpieces can be subjected to construction conveniently, thereby lowering the construction difficulty and improving the work efficiency.

Description

technical field [0001] The invention relates to a coating, in particular to an electrostatic spraying PE clear topcoat. Background technique [0002] PE paint, that is, unsaturated polyester paint, is cured by blending the main agent, accelerator and initiator to carry out polymerization bridging reaction. The solvent is styrene, which participates in the reaction when forming a film. Compared with solvent-based wood lacquers, the advantage of PE lacquers is that they have "100% reactivity", which means that the liquid composition can be completely transformed into a solid polymer without the release of by-products under the action of an initiator. PE paint has high comprehensive performance, which is comparable to PU paint in terms of wear resistance, heat resistance, corrosion resistance, and high gloss, and is superior to other paints in terms of hardness, fullness, transparency, and filling. Chinese patent CN102286240A discloses a PE bright white topcoat, including unsa...

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Problems solved by technology

[0003] However, the traditional PE paint construction methods are hand brushing, manual spraying or shower coating. When making complex woodware, such as musical instruments, handicrafts, etc., there are problems of difficult construction and low work efficiency, and the film-forming mechanism of PE paint Free radical-initiated polymerization, once its components are mixed, it will start to generate free radicals and polymerize, and the service life is generally within 20 minutes, which brings a lot of inconvenience to the construction

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