Development and Characteristics of the Sealant

Development History of Sealant

Along with the production and the improvement of living standards, ordinary molecular structure of sealant has been far from being able to meet the requirements of people in the production life, when the polymer materials and nano-material is an effective way to improve the performance of various materials, polymer-based polymer and nano-polymer become the important research direction of waterproof sealant. In the development of modern industrial enterprises, increasing cluster size and the degree of automation, continuous production requirements for the safety of the equipment is also increasing, traditional metal repair method is based equipment maintenance technology has far from being able to meet the demand, for more high-tech equipment maintenance, this need to develop new technologies and materials for equipment prevention and on-site solution, for the birth of a new sealant polymer composites, in order to solve more problems and meet new application requirements.

The Characteristics of the Sealants
Temperature resistance is one of the excellent characteristics of inorganic sealants. Inorganic high temperature sealant is usually used in the temperature range of 1500 to 1750 °C, while the temperature range of the silicon sealant is wider, it can be used within the range of 180 to 1400 °C. Inorganic high temperature sealant aggregate zircon sand and fire clay, zircon sand prices are higher, mainly rely on imports, fire clay at the expense of the land to obtain costly. Therefore, looking for cheap products to replace the traditional aggregate in order to reduce production costs is a priority. Some organic sealant also been achieved through the modification of the high-temperature performance. For example, the phenolic resin modified with B4C 1500 ° C high temperature capability. Market demand for the temperature sealant continuous to grow, and thus this type of sealant has broad development prospects.

Environmental Problem of Sealants
The rapid development of science and technology, industrial modernization and urban population is concentrated, and with the increasingly serious environmental pollution, especially the chemical pollution caused by the environment and the ecological crisis, the impact of the national economic and social development has become an important factor. The rapid development of sealant industry provides for the community many new types of plastic types, but also brings pollution problems to the environment. Sealant features and applications have received considerable attention in the sealant environmental issues which are often ignored. However, increasing environmental awareness and health consciousness, requirements of sealant environmental issues will become more stringent, it is more important to protect the environment, and production units should produce environmentally friendly green sealant so that the users can use the non-toxic harmless sealant.

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