Road insulation coating

I. Introduction

DB-16T As the earth's energy is increasingly depleted, environmental protection and energy saving have become the theme of this era. Under the general trend of the times, scientific research and technological development have taken energy saving, consumption reduction, and improvement of economic benefits as one of the main breakthrough directions, and even fire-retardant coating technology is no exception. In recent years, the developed building thermal insulation coating --- reflective thermal insulation coating --- has made significant breakthroughs in energy saving. To understand reflective thermal insulation coatings, we need to start with their formulation.

The formulation of reflective thermal insulation coatings mainly consists of binders, heat-reflective pigments, fillers, and additives. It is a new type of fire-retardant and thermal insulation material that achieves insulation by efficiently reflecting sunlight. Among them, thin-layer thermal insulation reflective coatings are representative of this type of coating, mainly used in various applications requiring thermal insulation in the construction engineering field. That is, by applying highly reflective thermal insulation coatings on the surface of external protective structures, it can reduce the building's absorption of solar radiant heat, prevent the temperature rise of building surfaces due to solar radiation absorption, and also reduce heat transfer indoors, thereby achieving building protection and fire resistance.

II. Based on the thermal insulation mechanism of reflective thermal insulation coatings, there are mainly three types:

Barrier Thermal Insulation Coatings:

Achieves thermal insulation by impeding heat transfer. When preparing the coating, low thermal conductivity materials are primarily selected, and low thermal conductivity air is introduced as raw material after the coating forms a film. Commonly used heat-blocking fillers for this type of reflective thermal insulation coating include hollow glass beads, hollow ceramic powder, hollow fibers, sepiolite, vermiculite, perlite, etc.

Heat-Reflective Thermal Insulation Coatings:

Mainly achieves thermal insulation by reflecting the spectral energy of sunlight within the 400~1800nm range. Its reflective material uses nanomaterials.

Radiant Thermal Insulation Coatings:

Mainly achieves thermal insulation by emitting absorbed sunlight and heat into the air at specific wavelengths. Its formulation materials are various metal oxides, such as iron(III) oxide, manganese dioxide, cobalt(III) oxide, copper oxide, and other reflective spinel dopants. The above three are just the most basic classifications; often, we can also combine reflective thermal insulation coatings with the above-mentioned functions to form multifunctional thermal insulation coatings, such as those with both barrier and reflective capabilities. This is also the future development trend for reflective thermal insulation coatings.

More valuable is that reflective thermal insulation coatings have dual functions of decoration and thermal insulation, classifying them as functional coatings. Therefore, this type of coating has been widely applied in the construction engineering field, mainly for reflective thermal insulation on roofs and walls, and is also widely used in granaries. Furthermore, the application areas and usage scenarios for reflective thermal insulation coatings are continuously expanding. With the infinitely increasing demand for building energy efficiency in the future, their importance will inevitably show geometric growth! Thanks to their superior performance, reflective thermal insulation coatings have garnered a strong market response since their introduction. Even the state has consequently issued the reflective thermal insulation coating standard (JC/T1040-2007) requiring: solar reflectance no less than 85%, and hemispherical emissivity no less than 83%. This is to regulate the reflective thermal insulation coating market.

III. Construction Ratio

Paint: Thinner (1:0.3-0.5)

IV. Storage

1. Paint and thinner should be sealed and stored in a cool place, protected from fire, leakage, sun exposure, high temperatures, and away from ignition sources.

2. The coating's storage period is one year or more.

3. After opening the can, the coating should be thoroughly stirred to prevent pigment settling and color difference.

4. Adherents such as dust, particles, or oil stains on the workpiece surface will damage the appearance, so it should be wiped clean before spraying.

5. As various plastic substrates differ, thorough testing should be conducted before spraying to avoid affecting paint adhesion.

6. During construction, please take appropriate labor protection measures. If skin comes into contact with the coating, it can be washed with laundry detergent and water. If discomfort occurs, please seek medical help.