EPS environmental-protection, energy-saving and thermal-insulation aggregate modification method

Abstract

The invention discloses an EPS environmental-protection, energy-saving and thermal-insulation aggregate modification method, which comprises: 1, increasing the non-polarity of the surface of EPS particles to further enhance the macroscopical performance hydrophobicity; 2, acting a layer of a macromolecule admixture simultaneously containing a hydrophilic group and a hydrophobic group on the surface of the EPS particles; and 3, tightly bonding the EPS particles and the non-polar groups of the admixture through the effect of chemical bonds, wherein the hydrophilic groups are outwardly aligned on the surface of the EPS particles in an oriented manner to form a mesh hydrophilic film. According to the present invention, with the EPS environmental-protection, energy-saving and thermal-insulation aggregate modification method, the modification on EPS is performed in two steps, the EPS particles are pre-treated in advance to make the surface hydrophilic from hydrophobic, and the surfactant-based admixture is added to the cement cementation material so as to further reduce the surface activity of the EPS during the slurry mixing, such that the EPS particles can be completely moistened.

Description

technical field [0001] The invention relates to a modification method of thermal insulation materials, in particular to a modification method of EPS environmental protection, energy saving thermal insulation orthopedics, belonging to the field of environmental protection and energy saving. Background technique [0002] The modern civilization of human beings relies on the three pillars of energy, information and materials. The energy problem is a problem that countries around the world pay attention to at present, and it is listed as one of the four major survival problems faced by human beings. With the rapid development of industrial civilization, the earth's The oil, coal and other resources that can be used by human beings are gradually depleting. For human beings, the general trend of energy crisis is inevitable. Since the global energy crisis occurred in the 1970s, human beings have gradually realized the unrestrained use of energy. , will inevitably aggravate the ener...

AI Technical Summary

Problems solved by technology

[0002] The modern civilization of human beings relies on the three pillars of energy, information and materials. The energy problem is a problem that countries around the world pay attention to at present, and it is listed as one of the four major survival problems faced by human beings. With the rapid development of industrial civilization, the earth's The oil, coal and other resources that can be used by human beings are gradually depleting. For human beings, the general trend of energy crisis is inevitable. Since the global energy crisis occurred in the 1970s, human beings have gradually realized the unrestrained use of energy. , will inevitably aggravate the energy crisis, and eventually destroy the environment in which human beings live. Due to the constraints of the development level of science and technology, it will take time for human beings to develop new energy sources that can fundamentally solve the energy crisis. How to efficiently save energy has become the current solution. The key to the problem; in recent years, due to the rapid development of industry, the production and use of polystyrene has been increasing, resulting in a large amount of waste polystyrene, which has become white garbage that seriously affects the healthy development of the ecological environment; after EPS is broken, As an ultra-light material with a particle size of less than 5mm and a smooth surface, although it has good thermal insulation conditions, due to the surface hydrophobicity of EPS, EP5 particles tend to agglomerate under the action of mechanical stirring force, making it difficult to solve the problem of EPS particles. Hydrophilicity has become a key issue. For the same proportion of cement-based slurry insulation materials containing EPS particles, if the surface hydrophobicity of EPS grains cannot be improved, the workability of the slurry and the hardening of the slurry will The final comprehensive performance will have obvious differences, which greatly limits the application of waste EPS particles as ultra-light aggregate building insulation materials.