摘要:
The present invention relates to a method for producing a silica aerogel blanket, the method comprising recovering a supercritical waste liquid generated after performing a step of supercritical drying, neutralizing the recovered supercritical waste liquid by adding an acid thereto for recycling, and reusing the recycled supercritical waste liquid, and a silica aerogel blanket produced thereby.
摘要:
The present invention relates to a method of preparing an aerogel blanket in which, a surface of a base material for a blanket is activated and roughness and porosity of the surface of the base material for a blanket are increased to increase adhesion performance of a silica aerogel by inducing etching of a surface of a base material for a blanket using an acidic solution, and mechanical flexibility is increased and the generation of dust is minimized by further performing a gel deformation process of introducing cracks into the aerogel, and a low-dust and high-insulation aerogel blanket prepared according to the present invention.
摘要:
The present invention relates to a hydrophilic silica aerogel blanket for ultra-high temperature insulation, a production method thereof, and a construction method thereof. More specifically, the present invention provides a production method a hydrophilic silica aerogel blanket, the method capable of strengthening the structure of a silica gel by adding a basic catalyst in an aging step, reducing processing time and cost by omitting a surface modification step, thereby reducing manufacturing cost, and suppressing the generation of a bad odor during construction by fundamentally blocking a volatile organic compound (VOC), a hydrophilic silica aerogel blanket produced thereby, and a construction method of a hydrophilic silica aerogel blanket, the method capable of suppressing the generation of a bad odor when constructing the hydrophilic aerogel blanket on an ultra-high temperature piping equipment, and at the same time, preventing the loss of heat insulation performance due to moisture in the air.
摘要:
The present invention relates to a method for manufacturing an aerogel sheet. The method for manufacturing the aerogel sheet includes: a step (a) of preparing silica sol; a step (b) of preparing a gelling catalyst; a step (c) of injecting the silica sol, which is prepared in the step (a), to a surface of a blanket to impregnate the silica sol; a step (d) of injecting the gelling catalyst, which is prepared in step (b), to the surface of the blanket, into which the silica sol is impregnated, to gelate the silica sol; and a step (e) of cutting the blanket, in which the silica sol is gelated, to obtain a sheet in which the silica sol is gelated.
摘要:
Provided are a method for preparing a hydrophobic silica aerogel by the combined use of a first surface modifier and a second surface modifier, and a hydrophobic silica aerogel prepared by using the method. A hydrophobic silica aerogel having excellent physical properties and pore characteristics as well as a high degree of hydrophobicity may be prepared with high efficiency by the preparation method according to the present invention.
摘要:
Disclosed are a water-dispersible halogen-capping polyalkylacrylate, a vinyl chloride-based block copolymer and a method for preparing the same. By using the water-dispersible halogen-capping polyalkylacrylate derivative as a chain transfer agent for polymerization of a vinyl chloride-based monomer, it is possible to obtain effects such as reduction of coagulation of particles and adhesion of particles to a reactor wall, improvement in reaction efficiency and polydispersity index, and prevention of yellowing.
摘要:
Provided is a supercritical drying method of a silica wet gel blanket and a method for producing a silica aerogel blanket including the same, the supercritical drying method preventing a salt from being accumulated inside equipment during supercritical drying. By preventing a salt from being accumulated inside equipment during supercritical drying, it is possible to improve the operational stability of the supercritical drying process. In addition, since only a line filter needs to be separated and is easily washed, the time required for washing and the total amount of ammonia wastewater generated therefrom can be reduced, thereby improving efficiency and reducing costs.
摘要:
The present invention relates to a method for manufacturing an aerogel sheet. The method for manufacturing an aerogel sheet includes: a step (a) of preparing silica sol; a step (b) of preparing a gelling catalyst; a step (c) of injecting the silica sol, which is prepared in the step (a), to a surface of a blanket to impregnate the silica sol; and a step (d) of injecting the gelling catalyst, which is prepared in the step (b), to the surface of the blanket, into which the silica sol is impregnated, to gelate the silica sol.
摘要:
A method for manufacturing an aerogel sheet according to the present invention includes: a step (a) of preparing a blanket having a plate shape; a step (b) of mixing silica sol with gelling catalyst to prepare a silica sol precursor; and a step (c) of injecting the silica sol precursor prepared in the step (b) to a surface of the blanket prepared in the step (a) through an injection device to gelate the silica sol precursor, wherein, in the step (c), the injection device injects the silica sol precursor while moving from one side to the other side of the surface of the blanket.
摘要:
The present invention relates to a low-dust, high insulation aerogel blanket and a method for producing the same. More specifically, the present invention provides a method for producing a low-dust, high insulation aerogel blanket, wherein a plate type Mg(OH)2.MgO.SiO2 powder is added to a silica sol, thereby being capable of reducing the generation of dust with excellent flame retardancy and thermal conductivity, and an aerogel blanket produced thereby.