Scratch-resisting and temperature-resisting flexible polyester-nitrile butadiene rubber composite powder paint and preparation method thereof

Abstract

The invention discloses scratch-resisting and temperature-resisting flexible polyester-nitrile butadiene rubber composite powder paint. According to the powder paint, polyester resin is compounded with liquid nitrile butadiene rubber and natural latex, so that shrinkage hole and cracking phenomena of a coating are effectively improved when hydroxyalkylamide is used as a curing agent and the adhesive force between the coating and a metal material is improved; added ultrafine polytetrafluoroethylene powder has good flowability so that the surface performance of the paint can be effectively improved and the coating has scratching-resisting and sticking-resisting effects; silicon dioxide aerogel particles subjected to surface modification of a silane coupling agent have good dispersibility; the comprehensive performance of the coating are effectively improved; a finally prepared finished product has the advantages of rapid curing and film forming speeds, soft and firm film layer, oil resistance and water resistance, scratching resistance and cracking resistance, and high temperature and low temperature change resistance; the user experience in an outdoor environment is effectively improved and the service life is effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of outdoor powder coatings, in particular to a scratch-resistant and temperature-resistant flexible polyester-nitrile rubber composite powder coating and a preparation method thereof. Background technique [0002] With the improvement of living standards, fitness and amusement equipment, as a multifunctional equipment integrating fitness and entertainment, can be seen everywhere in residential areas, squares and other places. Most of the equipment itself is made of metal materials, and the surface is sprayed with paint. Since the fitness and amusement equipment directly contacts the human body, and most of the users are the elderly and children, the environmental protection of the paint is also very important. Water-based paint is an environmentally friendly Coatings with high corrosion resistance have been widely concerned, but water is easy to corrode metal, so it is not suitable for coating on metal mater...

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Problems solved by technology

"Research on Perfluoropolyether-modified Polyester Powder Coatings" prepared a perfluoropolyether-modified polyester resin powder coating. The coating formed by this coating has good weather resistance, anti-corrosion, hydrophobic and anti-fouling effects. However, the adhesion of this kind of coating is not satisfactory, and the anti-stripping performance is poor. In addition, the friction coefficient of the coating surface is low, and there are safety hazards in use, and the production cost is high, which is not economical, so it needs to be further modified. to obtain products with superior comprehensive performance

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