In the frontier field of materials science, aerogel slurry is creating a storm of innovation with its outstanding performance. It uses high-performance SiO₂ aerogel as the core raw material, and uses a unique process to cleverly disperse hydrophobic aerogel particles in a water medium, successfully overcoming the dust problem of aerogel during use and transportation, while retaining its unique structure intact.
The thermal insulation performance of aerogel slurry is amazing. The thermal conductivity of its dry coating at room temperature can be as low as 0.018W/m・k, the dry slurry density is as low as 60kg/m³, and it will show hydrophobic properties after drying. Such outstanding performance makes it an ideal additive for lightweight, efficient thermal insulation and waterproofing, especially in the field of water-based thermal insulation coatings and composite thermal insulation materials.
From the perspective of practical application, aerogel slurry has a wide range of uses. In the field of coatings, it can be incorporated into the water-based thermal insulation coating system as an additive to significantly improve the thermal insulation effect; it can also be directly used as a coating raw material to make efficient thermal insulation coatings. For example, the aerogel environmentally friendly flame retardant slurry produced by Huayang Group's Airig New Materials Company has a combustion grade of A, volatile organic compounds (VOC) ≤ 3.2 micrograms/cubic meter, does not contain heavy metals such as lead and cadmium, and can reach A2 when coated on wood panels. It has significant effects in fire prevention, flame retardancy, and heat insulation of building materials. It has reached cooperation with South Korea's Jinrong Group and opened up the international market.
In the construction industry, aerogel slurry also shows its prowess. The aerogel insulation board pioneered and developed by the "Kehang Insulation" team of Chongqing Construction Technology Vocational College uses aerogel slurry-related technologies. This insulation board reduces the thermal conductivity of the exterior wall and reduces the energy loss of the building's exterior wall to achieve building energy saving. Compared with traditional insulation mortar, it can reduce the load on the building and improve the fire resistance level of the building. In addition, compounding aerogel slurry with perlite, rock wool, glass fiber and other materials can greatly enhance the insulation performance; used in the insulation papermaking industry, it can give paper excellent insulation properties.
In the field of new energy vehicles, aerogel slurry is also indispensable. In the battery thermal management system, the thermal insulation material made of aerogel slurry can effectively prevent the conduction of battery temperature and the spread of flames, and improve the safety and stability of the battery. For example, Xiaomi Automobile is equipped with aerogel on both sides of each battery cell to ensure battery safety; the battery pack of SAIC-GM's Autoneng Intelligent Electric Platform contains up to 180 pieces of aerogel, with a maximum effective thermal insulation area of 11.188 square meters, which effectively reduces the heat transfer between battery cells. With the development of the new energy vehicle industry, the application prospects of aerogel slurry in this field will be broader.
In addition, in special parts of electronic equipment, ultra-thin thermal insulation materials made of aerogel slurry are escorting the stable operation of precision components. With the growing global demand for energy-saving, environmental protection and high-performance materials, aerogel slurry will surely achieve breakthroughs in more fields with its own advantages, bring more surprises and changes to our lives, and lead a new trend in material applications.
