KR100869384B1 - Translucent aerogel monolith insulating materials having improved durability and overlap glasses prepared thereof - Google Patents

Abstract

A translucent aerogel monolith insulating material is provided to improve strength, durability, weather resistance, and cracking resistance and to ensure excellent adiabaticity and translucent property of aerogel. An organic and inorganic hybrid aerogel monolith translucent adiabatic material is compounded with aerogel and a poly silicon of the chemical formula 1. In the chemical formula, X is -OH; R1 and R2 are independently selected from a group consisting of hydrogen, C1~10 alkyl and C6~20 aryl group; the C6~20 aryl can be substituted with at least one substituent selected from a group consisting of C1~5 alkyl and C2~5 alkylene group; R1 and R2 are identical or different; and n is 3~10,000.

Description

Translucent Aerogel Monolith Insulating Materials Having Improved Durability and Overlap Glasses Prepared Thereof}

The present invention relates to an airgel-translucent insulating material and a multilayer glass manufactured therefrom, which have improved strength, durability, weather resistance and crack resistance, and more specifically, strength, durability, weather resistance and crack resistance are improved by complexing with a polymer. The present invention relates to an organic and inorganic hybrid airgel monolith transparent insulating material and a multilayer glass prepared therefrom.

Airgel is a transparent ultra-low density material having a porosity of 90% or more and a specific surface area of several hundred to 1500 m ² / g. Such porous airgel can be applied to the fields of ultra low dielectric, catalyst, electrode material, soundproof material, heat insulating material, buffer material, and the like. Especially, silica airgel has high light transmittance and low thermal conductivity, so it has high potential as a light transmissive heat insulating material. Rather, it is a very efficient super insulation material that can be used for building insulation panels, insulation windows, refrigerators, automobiles, aircraft, and the like.

In particular, aerogel monolith is a material with excellent heat insulation compared to glass (glass thermal conductivity ~ 1000 mW / mk >> aerogel monolith 10-15 mW / mk). of windows based on highly insulating aerogel glazings, "Journal of Non-Crystalline Solids 350 (2004) 351-357, Solar Energy Vol. 63, No. 4, pp. 259-267, 1998.

However, since airgel monolith is easily broken by very weak impact due to very weak mechanical strength and durability, it is known that it is difficult to use airgel as a heat insulating material by itself. Thus, until recently, aerogels have been formed into composites with fibers to form flexible sheet-like, composites with polyurethane (PU) foams, or to produce particles / beads and to apply them as thermal insulators.

However, these attempts reinforce the fragile strength of the aerogels but impair the adiabatic and translucent properties of the aerogels during granulation or compounding. For example, when the airgel is granulated, the adiabatic performance of the airgel is deteriorated due to the air (˜25 mW / mk) present in the voids between the airgel particles. In the composite with the fiber, the thermally inferior performance is lowered and the light transmittance is lost because the fiber having a lower thermal insulation performance than the airgel partially replaces the airgel.

In addition, the insulation window filled with the airgel particles is applied to the airgel particles due to thermal stress and aging due to repeated expansion and contraction after long-term exposure to external temperature changes and sunlight, in particular ultraviolet rays. Cracks occur. Not only the light transmittance is lost due to the cracks of the airgel particles formed over such a long period of time, but also the air convection layer is formed due to the change in particle size and the filling rate of the particles.

Specifically, Journal of Non-Crystalline Solids 344 (2004) 22.25 discloses that silica aerogels have different crack growth properties depending on temperature and / or humidity, such as glass or dense silica. For example, when the same heat stress is applied to an aerogel, the growth rate of cracks is reported to be more than 10 times different at room temperature and 100 ° C. In addition, when the same heat stress is applied to the airgel, the growth rate of cracks is reported to be more than 300 times different at 5% RH and 50% RH humidity conditions.

Therefore, in the case of building insulation using aerogels, fine cracks are formed on the aerogels after prolonged exposure to climates with large temperature and / or humidity changes, and once the cracks are formed, crack growth proceeds remarkably due to finer stresses. Insulation property is reduced.

Due to these problems, there is a need for an airgel that exhibits excellent strength, weather resistance, durability, crack resistance, etc., even when exposed to the natural environment for a long time, as well as excellent thermal insulation and light transmittance, which are characteristics of the airgel.

Accordingly, an object of the present invention is to provide an airgel monolith transparent heat insulating material excellent in strength, durability, weather resistance, crack resistance, light transmittance, and heat insulating property.

Another object of the present invention is to provide an organic / inorganic hybrid airgel monolith transparent light insulating material which is complexed with a polymer and exhibits excellent strength, durability, weather resistance, crack resistance, light transmittance and heat insulating property.

Still another object of the present invention is to provide a multilayer glass having excellent strength, durability, weather resistance, crack resistance, light transmittance, and heat insulation, which are made of the organic and inorganic hybrid airgel monolith transparent heat insulating material of the present invention.

According to one aspect of the invention,

There is provided an organic and inorganic hybrid airgel monolith translucent insulating material in which an airgel and a silicone polymer represented by Formula 1 are combined.

[Formula 1]

(Wherein X is a hydroxy group and R ₁ And R ₂ are each hydrogen, C _{1 ~ 10} alkyl and C ₆ are independently selected from the group consisting of a group _{- 20} aryl, wherein said C _{6 - 20} aryl C _{1 ~ 5} alkyl group and C _{2 - 5} alkyl that is configured as alkylene At least one group selected from the group, R ₁ And R ₂ may be the same or different and n is 3 to 10,000.)

According to another aspect of the present invention,

At least one of the two substrates positioned in parallel at regular intervals is provided with a multilayer glass of the airgel monolith transparent insulating material of the present invention.

According to another aspect of the present invention,

There is provided a multilayer glass comprising the airgel monolith translucent insulating material of the present invention positioned in parallel between two substrates and two substrates positioned in parallel at regular intervals.

The airgel monolith transmissive heat insulating material of the present invention is an organic / inorganic hybrid obtained by complexing an airgel and a silicone polymer to increase strength, durability, weather resistance, and crack resistance, and has excellent heat insulation and light transmittance of conventional airgel.

Hereinafter, with reference to the drawings will be described in more detail with respect to the organic and inorganic hybrid aerogel monolith light-transmitting heat insulating material in combination with the silicone polymer according to the present invention.

The present invention relates to an organic / inorganic hybrid airgel monolith in which an airgel and a silicone polymer are used as a conventional light transmitting insulation such as glass. The airgel monolith, which is a light-transmitting heat insulating material provided in the present invention, is an organic / inorganic hybrid obtained by complexing an airgel with a silicone polymer, thereby increasing strength, durability, weather resistance, and crack resistance, as well as having excellent heat insulation and light transmittance of conventional airgel. .

The airgel monolith according to the present invention can be used as a light-transmitting heat insulating material instead of glass which is conventionally used to have sufficient strength, durability, weather resistance, crack resistance, heat insulating property and light transmitting property by itself.

The structure, shape and / or type of the light-transmitting heat insulating material, for example, the glass window, in which the organic and inorganic hybrid airgel monoliths in which the airgel and the silicone polymer of the present invention are combined may be used, are not particularly limited. As an example, a perspective view of a multilayer glass structure made of the airgel monolith of the present invention is shown in FIG. 1A and a side cross-sectional view in FIG. 1B. Although not intended to limit the structure, form and / or type of light transmissive insulation that can be made with the airgel monolith of the present invention, it will be described with reference to the laminated glass of FIGS. 1A and 1B for convenience. The multilayer glass structure 10 includes two substrates 11 and 11 'which are positioned in parallel at regular intervals as shown in FIGS. 1A and 1B, and at least one of the substrates 11 and 11'. The substrate of may be an airgel monolith. In the case where one of the two substrates is an airgel monolith, the other substrate is not limited thereto, but, for example, ordinary glass, Royglass, polycarbonate substrate or the airgel monolith of the present invention can be used. In addition, when Roy glass is used as the substrate, the Roy coating surfaces 12 and 12 'are provided on the inner surfaces of the substrates facing each other, and the Roy coating surface can also be formed on the aerogel monolith substrate.

In general, the multilayer glass structure is filled with a dehumidifying agent 13 so as to maintain a constant gap between two parallel substrates at two parallel substrate ends and to prevent blur of the light-transmitting heat insulating material due to moisture. The dehumidifier 13 and the substrates 11 and 11 'are attached with adhesives 14 and 14'. Although not limited to this as an adhesive agent, polyisobutylene etc. can be used generally, for example. On the other hand, the ends of the two substrates 11 and 11 ', the dehumidifying agent 13 and the adhesives 14 and 14' are sealed in order to block the inside of the light-transmitting heat insulating material from the outside to prevent the degradation of properties due to temperature and humidity. As the sealant 15, silicone or the like is generally used.

In addition, as shown in FIGS. 2A and 2B, the aerogel monolith substrate 26 is made of multilayer glass 20 inserted in parallel with the substrates 21 and 21 ′ in a space formed between the substrates 21 and 21 ′. can do. In this case it has a triple-shaped structure. At this time, the number of airgel monoliths provided between the substrates is not particularly limited, and can be appropriately adjusted according to the thickness of the multilayer glass and the desired degree of thermal insulation. Substrates 21, 21 'are not limited to this, but may be, for example, plain glass, Roy glass, polycarbonate substrates or the aerogel monoliths of the present invention.

In addition, a protective substrate may be provided on at least one surface of both surfaces of the translucent insulating material made of the airgel monolith of the present invention. The protective substrate further increases the strength of the airgel monolith and prevents light damage of the airgel monolith due to external stimuli. Specifically, as shown in FIG. 3, a transparent heat insulating material having a structure in which protective substrates 21 and 21 ′ are attached to at least one surface (both surfaces in FIG. 3) of both surfaces of the airgel monolith substrate 26 may be formed. The protective substrate may be a common glass, a Roy glass having a Roy coating surface (22, 22 ') or a polycarbonate substrate. When the protective substrates 21 and 21 'are attached to both sides, the two protective substrates may be the same or different kinds of substrates. 3 is a multilayer glass structure 20 in which an airgel monolith 26 corresponding to the width of a space is inserted into a space between the substrates 21 and 21 '.

Furthermore, as shown in FIG. 4, the airgel particles 36 may be filled in the space between the substrates 31 and 31 ′ in the multilayer glass structure 30 in which the at least one substrate is the airgel monolith of the present invention.

Aerogel monoliths, which are organic / inorganic hybrids by combining aerogels and silicone polymers, have excellent mechanical strength and durability due to the balance of elasticity and rubbery properties of the polymers and aerogel properties (insulation and light transmitting properties) and the augmentation of aerogels by polymers. It is suitable as a substitute for the conventional light-transmitting heat insulating material, such as glass, to show the weather resistance and crack resistance, heat insulation and light transmittance according to temperature and / or humidity change.

EMBODIMENT OF THE INVENTION Hereinafter, the airgel monolith manufacturing method of this invention is demonstrated.

In the present invention, the polymer complexed with the airgel is preferably a silicone polymer having a hydroxyl group having a number average molecular weight of 200 to 80,000 in consideration of compatibility with the airgel precursor and improvement of physical properties by hybridization. If the number average molecular weight is less than 200, it is inefficient to improve the strength of the aerogel. If the number average molecular weight is more than 80,000, the compatibility with the aerogel precursor or the wet gel (mixing between the two reactants) becomes small, making it difficult to prepare a uniform reaction mixture. Therefore, since uniform reaction falls, it is not preferable.

The aerogel monolith complexed with a silicone polymer having a hydroxy group hydrolyzes the aerogel precursor, adds a silicone polymer having a hydroxy group to the hydrolyzate of the aerogel precursor, and performs a condensation reaction such that a sol, gel reaction, and an organic / inorganic hybrid reaction proceed. It can be prepared by a method of drying the solvent in the formed gel structure.

First, the airgel precursor is hydrolyzed. As the airgel precursor, a metal alkoxide having an alkyl group having 1 to 6 carbon atoms, preferably 1 to 4 carbon atoms, may be used. The metal alkoxide is not particularly limited by this, but tetraalkoxy silane (eg, tetraethoxysilane (TEOS), tetramethoxysilane (TMOS), tetra-n-propoxysilane), aluminum isopropoxide, Aluminum-sec-butoxide, cerium isopropoxide, hafnium tert-butoxide, magnesium aluminum isopropoxide, yttrium isopropoxide, titanium isopropoxide or zirconium isopropoxide and the like. Of these, the most suitable aerogel precursors for the production of aerogel insulations are tetraalkoxy silanes, preferably tetraethoxysilane (TEOS), tetramethoxysilane (TMOS) and tetra-n-propoxysilane, more preferably tetra Ethoxy sisilane may be used.

Hydrolysis of the airgel precursor is carried out in the presence of a catalyst in a reaction solvent. As the reaction solvent, alcohols such as isopropyl alcohol, methanol, ethanol, THF, DMF, and the like may be used alone or in combination, but is not limited thereto. That is, the reaction solvent used in the present invention may be any solvent known in the art regardless of the type and mixing ratio, so long as the reactants are well dissolved and do not inhibit the reaction.

In this case, water may be added in an airgel precursor: H ₂ O = 1: 1 to 1:10 molar ratio in consideration of the reactivity of the airgel precursor based on the molar ratio. Since hydrolysis is generally carried out under acidic conditions, acid catalysts such as HCl, H ₂ SO ₄ , HF and the like are used as the catalyst.

The hydrolysis reaction temperature is determined according to the reflux temperature associated with the boiling point of the reaction solvent used, for example, at a reaction temperature in the range of room temperature to the reflux temperature of the reaction solvent, within a reaction time of 30 minutes or less. It is preferable to perform the reaction from the viewpoint of completion of reaction and efficiency.

Thereafter, a silicon polymer having a hydroxy group is added to the hydrolyzate of the airgel precursor, and at room temperature to 100 ° C. in consideration of reactivity and reaction energy.

The condensation reaction is carried out for 2 to 24 hours. If the reaction time is less than 2 hours, the wet gel may not be sufficiently matured, so that cracks may be formed due to shrinkage of the wet gel during drying, and the strength may not be sufficiently high. Through the condensation reaction, the formation of the wet gel and the hybridization of the organic polymer into the gel structure proceed simultaneously. Since the condensation reaction generally proceeds efficiently at a pH of 5 to 11, it is preferable to use a base catalyst such as NH ₄ OH.

The condensation reaction is added to the reaction vessel of the desired monolith type airgel to be made of the monolithic airgel, and the reactant including the airgel precursor hydrolyzate and the silicone polymer is condensed in the reaction vessel. In the condensation reaction, it is preferable to mix the airgel precursor hydrolyzate and the silicone polymer so that the airgel precursor and the polymer are in a weight ratio of 50:50 to 95: 5 in the airgel complexed with the finally obtained polymer. If the content of the airgel precursor is lower than 50% by weight, it is difficult to show the characteristics of the airgel, and uniform reaction does not proceed due to compatibility between reactants. On the other hand, when the content of the silicone polymer is lower than 5% by weight, the concentration of the silane functional group may be low due to insufficient strength.

As the silicone polymer having a hydroxy group, one having a structure of Formula 1 may be used.

[Formula 1]

In which X is a hydroxy group and R ₁ And R ₂ are each hydrogen, C _{1 ~ 10} alkyl and C ₆ are independently selected from the group consisting of a group _{- 20} aryl, wherein said C _{6 - 20} aryl C _{1 ~ 5} alkyl group and C _{2 - 5} alkyl that is configured as alkylene At least one substituent selected from the group, R ₁ And R ₂ may be the same or different and n is 3 to 10,000.

The wet gel complexed with the silicone polymer formed in the condensation step is dried to completely remove the solvent inside the gel, thereby obtaining an aerogel complexed with the silicone polymer. Drying can be performed by supercritical drying. Moreover, supercritical drying can be carried out after solvent replacement as needed.

In the case of supercritical drying, the wet gel may be solvent-substituted with methanol or ethanol to remove water and residues in the gel, and then supercritical drying with carbon dioxide. Supercritical drying is preferably performed at a pressure of about 35 to 40 ° C. and about 1,500 to 1,800 psig in consideration of the physical properties and drying efficiency of the airgel.

Complexation of the aerogel and the silicone polymer by the organic and inorganic hybrid proceeds as in the reaction mechanism of Scheme 1 below.

Scheme 1

In more detail, as shown in Scheme 1, the durability and toughness of the aerogel through the formation of a molecular-level organic / inorganic hybrid composite by the reaction of the hydroxyl group on the surface of the aerogel precursor with the reactive functional group of the silicone polymer sock end, specifically, the hydroxyl group. ) Is increased.

As described above, the organic / inorganic hybrid airgel monolith in which an aerogel and a silicone polymer composed of 3 to 1000 monomers are complexed is composed of a ductile organic polymer and a brittle inorganic airgel. This improves the toughness of the brittle aerogels, reducing the occurrence of cracks with temperature and / or humidity changes, and exhibits excellent weatherability, durability, crack resistance and insulation over a long period of time. Organic and inorganic hybridized airgel monoliths also have excellent thermal insulation and light transmission properties of aerogels.

Accordingly, the translucent insulation made of the airgel monolith of the present invention increases crack resistance due to temperature and / or humidity change even when exposed to severe environment (climate) for a long time, thereby preventing cracking of the airgel. Accordingly, even when used for a long time (specifically, decades), it exhibits excellent weather resistance, durability, heat insulation, light transmission, and the like.

Hereinafter, the present invention will be described in more detail with reference to Examples. The following examples are intended to illustrate the invention and are not intended to limit the invention.

Example  One

TEOS and water were mixed at a molar ratio of 1 (224 g): 6 (108 g) and the mixture of TEOS and water was stirred to prevent the TEOS and water from separating. The initial acidity immediately after mixing TEOS and H ₂ O (ie, before hydrolysis and condensation) was pH 5-6. The mixture of TEOS and water was stirred to add 0.3-0.4 ml of hydrochloric acid (37% by weight) to allow the hydrolysis reaction to occur at room temperature for 20 minutes at pH 2. Silica sol solution was synthesized by generating heat due to hydrolysis reaction (exothermic reaction). The mixture was allowed to cool while stirring until the temperature of the silica sol solution was lowered to room temperature. After allowing to cool, the PDMS (polydimethylsiloxane) having a number average molecular weight of 550 and a hydroxyl group at the sock end was added to 2 wt% of the total weight of the reactant, followed by continuous stirring for 5 minutes. After adjusting to pH 5.3 by adding ammonium hydroxide (NH ₄ OH), it was poured into a square dish so as to have a height of 4-5 mm. After the gelation reaction was carried out in a square plate to prepare a wet gel, the square plate was sealed using parafilm and aged at 50 ° C. for 24 hours. After aging, in order to remove ethanol and other unreacted solvents generated during the reaction, an excess amount of methanol was added to the square plate to impregnate the wet gel and the solvent was replaced with methanol for 24 hours. After solvent replacement, CO ₂ supercritical injection device to the reaction vessel with a wet gel with methanol and CO ₂ gas is a supercritical fluid state the pressure and temperature so as to keep the (critical point pressure 73.76bar, temperature 31.1 ℃) Stable each 120bar, 35 The wet gel was dried at 5 ° C. for 5 hours to prepare PDMS and organic and inorganic hybrid silica airgel monoliths. The thermal conductivity of the airgel monolith prepared in this Example was 27.2 (mW / mk). On the other hand, the thermal conductivity of the silica polymer of Comparative Example 1 described later and the organic and inorganic hybrid aerogel monolith is 29.5 mW / mk, compared to this, it was confirmed that the aerogel monolith composited with the PDMS of the present invention maintains excellent thermal insulation.

The multilayer polymer 20 as shown in FIGS. 1A and 1B was manufactured by placing the silicon polymer prepared in this embodiment and the organic and inorganic hybrid aerogel monoliths 21 and 21 ′ in parallel at intervals of 12 mm. The size of the substrate was 300 mm X 300 mm. In addition, the aerogel monolith 26 produced in this example was inserted into the center of the laminated glass. In addition, a desiccator 23 is inserted between the two aerogel monoliths 21 and 21 'substrates (5 mm thick respectively) to maintain the spacing between the substrates and to exhibit a dehumidifying effect. Adhered with butylene adhesive 24, 24 '. Meanwhile, the ends of the three aerogel monolith substrates 21 and 21'26, the dehumidifying agent 23 and the adhesives 24 and 24 'were sealed with silicon 25 to manufacture the multilayer glass 20 of FIG. 2A.

Example  2

An airgel monolith was prepared in the same manner as in Example 1 except that PDMS having a number average molecular weight of 550 was used at 5 wt%. The thermal conductivity of the airgel monolith prepared in this Example was 29.5 (mW / mk). On the other hand, the thermal conductivity of the silica polymer of Comparative Example 1 described below and the organic and inorganic hybrid non-airgel monolith is 29.5 mW / mk, compared to the aerogel monolith composited with the PDMS of the present invention confirms that it has excellent thermal insulation similar to silica airgel monolith Could.

Example  3

An airgel monolith was prepared in the same manner as in Example 1 except that PDMS having a number average molecular weight of 550 was used at 10 wt%. The thermal conductivity of the airgel monolith prepared in this Example was 27.3 (mW / mk). On the other hand, the thermal conductivity of the silica polymer of the Comparative Example 1 described later and the organic and inorganic hybrid aerogel monolith is 29.5 mW / mk, it can be confirmed that the aerogel monolith composited with the PDMS of the present invention maintains excellent thermal insulation.

Comparative example  One

An airgel monolith was prepared in the same manner as in Example 1 except that PDMS was not used. Therefore, after adjusting the pH to 5.3 by adding ammonium hydroxide (NH ₄ OH) to the silica sol solution, which is a hydrolyzate, it was poured into a square dish so as to have a height of 4-5 mm as in Example 1. . Thereafter, the process was carried out as in Example 1.

Example  4

Aging test of the airgel monolith prepared in Examples 1 to 3 and Comparative Example 1 was carried out to evaluate the physical properties of the airgel monolith according to the present invention. In the aging test, the airgel monolith prepared in Examples 1 to 3 and Comparative Example 1 was observed 20 times after heating / cooling between 0 ° C. and 200 ° C. (after 20 aging). Was carried out. 5A to 5D show surface photographs of the airgel monolith before and after aging. In addition, the transmittance change (%) of the airgel monolith after aging 20 times of the airgel monolith prepared in Examples 1 to 3 and Comparative Example 1 was measured by UV-VIS spectrometer and is shown in FIGS. 6A to 6D. At this time, it was left for 30 minutes at the temperature of 0 ° C and 200 ° C before reheating or recooling.

When the airgel is exposed to the temperature change, the airgel is exposed to thermal stress due to the temperature change, which causes fine cracks inside the airgel. The microcracks generated as described above primarily cause a decrease in light transmittance, and when the airgel is exposed to continuous stress, the crack grows and the airgel is crushed. Therefore, the microcracks are generated by measuring light transmittance.

As can be seen in the photographs of FIGS. 5A to 5D, the organic and inorganic hybrid aerogel monoliths prepared in Examples 1 to 3 of FIGS. 5A to 5C did not have cracks observed with the naked eye even after 20 times of aging. In the aerogel monolith of Example 1, microcracks and grown cracks were observed after 20 aging. From this, excellent weather resistance, strength and crack resistance of the silicone polymer of the present invention and the organic and inorganic hybrid airgel monolith were confirmed.

In addition, the light transmittance measured by the UV-VIS spectrometer of FIGS. 6A to 6D shows that the airgel monoliths of Examples 1 to 3 of FIGS. 6A to 6C show little change in transmittance in the full visible region after 20 aging. On the contrary, in the airgel monolith of Comparative Example 1 of FIG. 6D having a lot of cracks, the light transmittance (T ₂₀ ) after aging 20 times at 350 nm was reduced to about 20% of the initial light transmittance (T ₀ ).

The meanings of the y-axis values in the graphs of FIGS. 6A to 6D are as follows.

1A is a perspective view showing a multilayer glass structure made of an organic / inorganic hybrid airgel monolith according to the present invention;

Figure 1b is a side cross-sectional view showing a multi-layer glass structure made of an organic, inorganic hybrid airgel monolith according to the present invention,

Figure 2a is a perspective view showing a multilayer glass structure further comprising an organic and inorganic hybrid airgel monolith according to the present invention in the space between the multilayer glass structure,

Figure 2a is a side cross-sectional view showing a multilayer glass structure further comprising an organic and inorganic hybrid airgel monolith according to the present invention in the space between the multilayer glass structure,

3 is a side cross-sectional view showing a structure in which a protective substrate is attached to both surfaces of a translucent insulating material made of aerogel monolith,

4 is a perspective view illustrating a multilayer glass structure in which an airgel is filled in a space of a multilayer glass structure of an organic / inorganic hybrid airgel monolith according to the present invention;

Figure 5a is a photograph showing the aging test results of the organic, inorganic hybrid airgel prepared in Example 1,

Figure 5b is a photograph showing the aging test results of the organic, inorganic hybrid airgel prepared in Example 2,

Figure 5c is a photograph showing the aging test results of the organic, inorganic hybrid airgel prepared in Example 3,

Figure 5d is a photograph showing the aging test results of the organic, inorganic hybrid airgel prepared in Comparative Example 1,

Figure 6a is a graph showing the light transmittance change after the aging test of the organic, inorganic hybrid airgel prepared in Example 1,

Figure 6b is a graph showing the light transmittance change after the aging test of the organic, inorganic hybrid airgel prepared in Example 2,

Figure 6c is a graph showing the light transmittance change after the aging test of the organic, inorganic hybrid airgel prepared in Example 3,

Figure 6d is a graph showing the light transmittance change after the aging test of the organic and inorganic hybrid airgel prepared in Comparative Example 1.

       Description of the main parts of the drawing

10,20,30 ... laminated glass

11, 11 ', 21, 21', 31, 31 '... translucent insulation (substrate)

12, 12 ', 22, 22', 32, 32 '... Roy coating

13, 23, 33 ... Dehumidifier

14, 14 ', 24, 24', 34, 34 '... adhesive

15, 25, 35 ... sealant

26 ... Airgel Monolith

36 ... airgel particles

Claims (13)

Organic and inorganic hybrid airgel monolith translucent insulation composited with an airgel and a silicone polymer represented by the following Chemical Formula 1. [Formula 1]

In which X is a hydroxy group and R ₁ And R ₂ are each hydrogen, C _{1 ~ 10} alkyl and C ₆ are independently selected from the group consisting of a group _{- 20} aryl, wherein said C _{6 - 20} aryl C _{1 ~ 5} alkyl group and C _{2 - 5} alkyl that is configured as alkylene May be substituted with at least one substituent selected from the group, R ₁ And R ₂ may be the same or different and n is 3 to 10,000. The method of claim 1, wherein the airgel monolith is tetraalkoxysilane, aluminum isopropoxide, aluminum-sec-butoxide, cerium isopropoxide, hafnium tert-butoxide, magnesium aluminum isopropoxide, yttrium isopropoxide A light transmissive insulating material, characterized in that it is prepared from at least one kind of aerogel precursor selected from the group consisting of side, titanium isopropoxide and zirconium isopropoxide. The translucent heat insulating material according to claim 2, wherein the tetraalkoxysilane is selected from the group consisting of tetraethoxysilane (TEOS), tetramethoxysilane (TMOS) and tetra-n-propoxysilane. The translucent insulating material according to claim 1, wherein the silicone polymer having a hydroxyl group has a number average molecular weight of 200 to 80,000. The translucent insulating material according to claim 1, wherein the airgel monolith is manufactured by an organic or inorganic hybrid of a hydrolyzate of an airgel precursor and a silicone polymer having a hydroxyl group. The translucent insulation of claim 1, further comprising an airgel monolith protective substrate attached to at least one surface of the organic and inorganic hybrid airgel monolith translucent insulation. The light-transmitting insulating material according to claim 6, wherein the protective substrate is a glass substrate, a Roy glass substrate or a polycarbonate substrate, and the two substrates are the same or different when the protective substrate is attached to both surfaces. A multilayer glass comprising two substrates arranged in parallel at regular intervals, wherein at least one of the two substrates is the aerogel monolith translucent insulation of claim 1. The multilayer glass according to claim 8, wherein when one of the two substrates is the airgel monolith transparent heat insulating material of claim 1, the other substrate is a glass substrate, a Roy glass substrate, a polycarbonate substrate, or an airgel monolith transparent light insulating material. A multilayer glass comprising the aerogel monolith translucent insulating material of claim 1 positioned in parallel between two substrates and two substrates positioned in parallel at regular intervals. The multilayer glass according to claim 10, wherein the two substrates arranged in parallel are selected from the group consisting of a glass substrate, a Roy glass substrate, a polycarbonate substrate, and the aerogel monolith transparent insulating material of claim 1. The multilayer glass according to claim 11, wherein the two substrates may be the same or different substrates. The multilayer glass according to any one of claims 8 to 12, wherein an airgel is filled in the space between the substrates.

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