Tu Jie reporter was informed on August 9 that the “Development of Diatomite-based Humidity Control and Purification Functional Materials and Preparation and Evaluation Technology of Coating Materials” project completed by China Academy of Building Materials Science and Beijing Dajin Diatom New Materials Co., Ltd. Recently won the 2017 Beijing Science and Technology Award.It is understood that this project aims to deal with problems such as serious indoor environmental pollution in China, few types of interior wall coating materials (mainly latex paint and wallpaper), and environmental pollution and poor health performance of latex paint and wallpaper (adhesive). Research on environmental materials and new coating materials. Environmental minerals with porosity, large specific surface area and mineral activity are good materials for environmental treatment and environmental restoration. Using porous materials such as diatomaceous earth to develop technology for preparing humidity-controlling, purifying, and long-acting mildew-proof functional materials; using relevant functional materials, developing wall surfaces with humidity-controlling, purification, and long-term anti-mildew functions that have no or low pollution The coating material overcomes the disadvantages of latex paint and wallpaper adhesives, such as poor environmental protection, and does not have the ability to improve the environment.
At the same time, it proposes product functional testing and evaluation technology and forms a standardization. In addition to coating wallpapers, new varieties of decorative materials will be added to improve the environmental protection and health technology of wall decorative materials.
According to reports, the project has three main technical innovation points: (1) Research and development of diatomite-based functional materials: Proposed pore matching technology of mineral humidity-control materials, using diatomite and sepiolite to achieve pore matching, Improve the moisture absorption and desorption effect. Using the large specific surface area of non-high-temperature calcined diatomite, the existence of SiO defects on the surface, and the appropriate proportion of SO42- ions, the preparation of nano-TiO2/diatomite composite purification material increases the surface area, improves the photocatalytic activity, and achieves excellent Purification performance; the effective anti-mold component is loaded into the micro-mesoporous pores of diatomite by the adsorption loading method to realize the slow release of the organic anti-mold component and effectively improve the anti-mold durability. (2) Research and development and industrialization of diatomite-based coating materials: use diatomite as the main raw material to prepare humidity-controlling, purifying, and long-acting antibacterial and anti-mold materials to prepare functionally integrated coating materials. It is required to adjust the amount of functional materials to achieve adjustable functionality, develop powder diatom mud decorative wall materials (zero VOC) and water-based liquid diatom coating preparation technology, fully industrialize and enter the market, for the diversification of wall decoration 3. Contribute to environmental health functionalization.(3) Research on evaluation technology and establishment of standards: Systematic research on evaluation technologies for humidity adjustment, purification, anti-condensation, etc., and research on test methods, devices, and standards have filled the domestic gap. Based on the evaluation of the comprehensive performance of the two diatom coating materials, the relevant product industry standards were established, which contributed to regulating the market and promoting the healthy development of the industry.Tu Tu reporter noted that the project has many intellectual property rights, including: humidity-adjusting functional material performance testing equipment and test methods; a breathable humidity-adjusting interior wall diatom latex paint and its preparation method; self-consumption interior wall decoration Environmental protection composite coating material and its preparation method and application; interior wall powder decorative coating with air purification, antibacterial and humidity adjustment functions; photocatalytic air purification powder material and its preparation method and application; thick air purification coating Material and its preparation method; anti-mildew and anti-condensation coating and its preparation method; inorganic putty powder with humidity adjustment function; mechanical thermostat temperature-adjusting function material performance testing equipment; a coating condensation carrier and anti-condensation performance test System etc.In addition, the project achievements have also formed many standards: "Antibacterial coating (paint film) antibacterial determination method and antibacterial effect GB/T 21866-2008", "Indoor air purification functional coating material purification performance JC/T 1074-2008" , "Testing method for moisture absorption and desorption performance of building materials JC/T 2002-2009", "Moisture-adjusting function indoor building decoration materials JC/T 2082-2011", "Testing method for anti-condensation performance of paints HG/T 4560-2013" , "Diatom mud decorative wall material JC/T 2177-2013", "Diatomite composite decorative wall material Q/DXDJN0001-2015", "silver ion-containing diatom mud paint Q/DXDJN0002-2015".It is understood that the diatomite-based functional materials and coating materials developed by the project have improved the environmental protection and functionality of wall decoration materials, realized the combination of functional and decorative coating materials, and broke the wall coating The dualization pattern of diatomite has changed the application situation where diatomite can only be used as a low-end product in the past, and has improved the applied technology level of diatomite. In the past three years, the total output value of the two units that completed the project reached 136 million yuan, with a new profit of 15.13 million yuan and a new tax of 22.45 million yuan. After nearly 10 years of development, the diatom new material industry has begun to take shape in the industry and has become the new darling of the home improvement market. It has made due contributions to the technological progress of my country's coating products and solving indoor pollution problems.