Polymer putty, putty coating, preparation method, putty coating and application

Abstract

The invention provides polymer putty, a putty coating, a preparation method, a putty coating and application, and relates to the technical field of coatings. The polymer putty is mainly prepared from emulsion, trifluoroethyl methacrylate, butyl acrylate, vinylidene fluoride, polyvinyl alcohol, a cross-linking agent, [3-(2-aminoethylamino) propyl] trimethoxysilane, octadecyl acrylate and other raw materials according to a specific amount. According to the polymer putty disclosed by the invention, a putty coating formed by the polymer putty can achieve self-healing and is not easy to shrink and crack within effective time, can also play a role in integrating leveling and beautifying, can insulate heat and cool, can also form a lotus effect when being washed by rainwater, and can also resist physical erosion/damage under severe conditions. The invention also provides a putty coating which comprises the polymer putty, single-component putty powder and water.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a polymer putty, a putty coating, a preparation method, a putty coating and an application. Background technique [0002] At present, there are mainly one-component putty and two-component putty on the market. One-component putty is a dry powder material mixed with admixture, cement and sand powder, which can be used after adding water and stirring on site. The two-component putty is mainly composed of two parts, one part is a liquid material mainly composed of emulsion, and the other part is mainly powder materials such as cement and fillers. During on-site construction, powder materials and liquid materials are mixed in a certain proportion to prepare Putty will do. There are many criticisms of the interior and exterior wall putty currently on the market: [0003] (1) Generally, the putty is cracked due to structural cracks or cracks in the insulation layer. The constructio...

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Problems solved by technology

[0003] (1) Generally, the putty is cracked due to structural cracks or cracks in the insulation layer. The construction thickness is generally not greater than 1.5mm. When the thickness is too high, it is easy to shrink and crack. "healing" status

[0004] (2) The traditional putty cannot achieve the dual functions of leveling and beautifying the wall, and cannot achieve the energy-saving thermal insulation system of building insulation materials on the traditional basis. The cooling and heating in buildings account for 12% of the global energy consumption. The limitation of poor radiant cooling, the large temperature difference between the indoor space and the outdoor environment will cause the heat to flow back, which will reduce the cooling effect and cause serious energy waste, and cannot meet the "self-cooling" requirement

[0005] (3) General putty waterproofing is waterproof on its plastering surface, but it is a rigid waterproof layer, which is brittle and poor in willfulness. It is difficult to maintain high mechanical strength while satisfying hydrophobic performance to meet high-speed liquid impact. It will form a "lotus leaf effect" under the impact of high-speed liquid, and it is difficult to resist physical erosion / destruction under harsh conditions

However, in the conventional design of many methods, the adjustment of thermal insulation performance of radiative cooling materials is usually ignored, especially in hot summer, thermal insulation is particularly important, because the large temperature difference between the indoor space and the outdoor environment will cause heat to flow back, which Reduces cooling effectiveness and wastes energy

In order to increase the waterproof performance of traditional putty, a large amount of water repellent is added, but it will cause the subsequent physical performance to be low

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