Inorganic fibrous insulating material
A technology of inorganic fibers and thermal insulation materials, which is applied in mechanical equipment, heat exchange equipment, and pipelines through thermal insulation protection, and can solve problems such as density differences, performance degradation of thermal insulation materials, and high thermal conductivity
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Examples
example 2
[0104] In terms of solid content, 70 parts by mass of monomers dispersed in water are 10% or less, dimers are 80% or more, and free phenols are 1% or less. In a mixture of 30 parts by mass of dimethylolurea, 0.2 parts by mass of γ-aminopropyltriethoxysilane as a silane coupling agent was added and stirred, then diluted with water so that the solid content reached 15%, thereby obtaining Thermosetting binder 2.
Embodiment 1
[0106] Contain 65.0% by mass of SiO based on the total mass of oxides contained 2 +Al 2 o 3 , 5.0% by mass of B 2 o 3, 16.2% by mass Na 2 O+K 2 The glass composition of O and 11.5% by mass of MgO+CaO is melted, using Japanese Patent Application Laid-Open No. 2009-155172 figure 1 The fiber forming device described in , uses the centrifugal method to form fibers with a fiber diameter of 3 μm and a fiber length of 20 mm or more under the conditions of a textile machine with a peripheral speed of 50 m / s, an average hole diameter of 0.3 mm, and a molten glass temperature of 1150 °C. After the glass fiber is sprayed with binder 1, the unit area weight is 350g / m2 formed on the cotton collection belt by suction from below and air flow from above. 2 , A glass fiber mat with a width of 2000mm.
[0107] The weight per unit area was adjusted by setting the speed of the collecting belt to 20 m / min. The fiberglass mat is conveyed to a swinging device at a mat speed of 20m / min by mea...
Embodiment 2
[0110] After the fibrillation step in the same manner as in Example 1, the binding agent 2 is coated to form a fiber with a weight per unit area of 530 g / m on the cotton collection belt. 2 , A glass fiber mat with a width of 1000mm. The fiberglass mat is conveyed to a swinging device through a cotton belt, and 4 layers are laminated with a swinging device, and the binder is cured in an oven at 240°C to form a density of 20kg / m 3 , a glass fiber thermal insulation material with a thickness of 105mm and a binder adhesion of 5% by mass.
[0111] When the orientation angle of the glass fiber mat laminated in the molded glass fiber heat insulating material was measured with a protractor, it was 9°.
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Abstract
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