Nano aqueous interior wall heat insulation paint and preparation method thereof

Abstract

The invention provides a nano aqueous interior wall heat insulation paint and a preparation method thereof, which belong to the technical field of production of aqueous paint. The nano aqueous interior wall heat insulation paint comprises the following components in percentage by weight: 20 to 35 percent of emulsion, 20 to 30 percent of nano calcium carbonate, 8 to 16 percent of nano oxide composition, 0.2 to 2 percent of thickening agent, 0.5 to 2 percent of wetting and dispersing agent, 0.1 to 0.5 percent of antifoaming agent, 0.5 to 2 percent of anti-freezing agent and the balance of water. The preparation process comprises the following steps of: uniformly stirring the water, the dispersing agent, glycol and half the antifoaming agent at a low speed, sequentially adding the nano calcium carbonate and the nano oxide composition with stirring; uniformly stirring the nano calcium carbonate and the nano oxide composition and uniformly dispersing the mixture by shearing the mixture on a multifunctional disperser at a high speed; slowly adding the emulsion dropwise at a low stirring speed; subsequently adding the remaining antifoaming agent and the thickening agent; and uniformly stirring and mixing the mixture at the low speed. The heat insulation paint of the invention comprises the water serving as a solvent, does not contain an organic solvent, and has the advantages of low VOC content, simple preparation process and wide application.

Description

Technical field [0001] The invention belongs to the technical field of production of water-based paints, and specifically relates to a nano-water-based interior wall thermal insulation paint and a preparation method thereof. Background technique [0002] In my country's energy consumption, building energy consumption accounts for about 35% of the national energy consumption. my country has issued a series of policies and regulations that require mandatory energy-saving measures for buildings. In building thermal insulation materials, building thermal insulation coatings are more and more favored by people due to their advantages such as convenient use, good thermal insulation effect and economic feasibility. Water-based building energy-saving coating, it is a green and environmentally friendly coating with low volatile organic compound (VOC) content, safe production and construction, non-flammable, no (or low) toxicity, and no (or low) odor, which is in line with the development...

AI Technical Summary

Problems solved by technology

Although this coating can play a role in thermal insulation to a certain extent, it is difficult to meet the country's energy-saving requirements for buildings.

The invention patent with the publication number CN1986664A discloses a kind of insulating coating with hollow glass microspheres as additives, which can reduce the surface of various energy objects, reduce their surface temperature and internal temperature, thereby improving the working environment and achieving the purpose of saving energy and reducing consumption. , but the existing hollow glass microspheres have poor wettability with water, are difficult to disperse in the coating and are easy to segregate during storage. After coating, they are not firmly adhered to the base layer and have poor durability.