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A high-strength hollow heat-insulating building material and its application

A building material and high-strength technology, applied in applications, building components, and other home appliances, can solve problems such as rising indoor temperature, inability to achieve heat preservation, and low thermal conductivity, and achieve light weight, high heat insulation performance, and high strength. Effect

Active Publication Date: 2021-10-01
四川汇园宝新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-strength hollow heat-insulating building material and its application. The interior of the material is a reticular hollow structure. Since the internal support structure of the porous hollow microspheres is mainly prepared by silicon dioxide and aluminum oxide, it has Low thermal conductivity, and due to the pore structure inside the microspheres, when the heat passes through the hollow microspheres and then conducts through multiple channels, the heat decreases step by step, and the heat is lower when it is finally transferred to the surface of the wall, thus making this The thermal conductivity of the thermal insulation coating made of the material is as low as 0.013W(m.k) -1 , to achieve heat insulation in winter and summer, and solve the problem that the existing architectural coatings cannot achieve indoor heat preservation in winter. Relying on the reflection of solar energy on the surface of the wall cannot achieve the heat insulation performance of the building well

Method used

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  • A high-strength hollow heat-insulating building material and its application

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Experimental program
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Effect test

Embodiment 1

[0023] A high-strength hollow heat-insulating building material, the specific preparation process is as follows:

[0024] In the first step, pour the sodium hydroxide solution with a concentration of 17% into the reaction container, raise the temperature to 60°C, add a certain amount of polyvinyl chloride foam plastic microspheres, stir the hydrolysis reaction for 5-7h, remove it, and then After immersing in 1% hydrochloric acid solution for 30 minutes, then pour it into clean water and repeatedly squeeze and wash until neutral, and at the same time dry the hydrolyzed microspheres in an oven at 50°C to obtain hydrolyzed plastic microspheres;

[0025] In the second step, add 2.3kg of silicon dioxide and 2.9kg of aluminum oxide into 10kg of water and stir evenly, then add 0.3kg of bentonite, 0.7kg of liquid paraffin and 0.05kg of surfactant, stir evenly and add 1.2kg of phenolic resin Adhesive, stirring and mixing for 30-40 minutes to obtain a molding slurry;

[0026] The third...

Embodiment 2

[0032] A high-strength hollow heat-insulating building material, the specific preparation process is as follows:

[0033] In the first step, pour the sodium hydroxide solution with a concentration of 20% into the reaction container, raise the temperature to 60°C, add a certain amount of polyvinyl chloride foam plastic microspheres, stir the hydrolysis reaction for 5-7 hours, remove it, and then add After immersing in 1% hydrochloric acid solution for 30 minutes, then pour it into clean water and repeatedly squeeze and wash until neutral, and at the same time dry the hydrolyzed microspheres in an oven at 50°C to obtain hydrolyzed plastic microspheres;

[0034] In the second step, add 2.6kg of silicon dioxide and 3.3kg of aluminum oxide into water and stir evenly, then add 0.7kg of bentonite, 0.9kg of liquid paraffin and 0.09kg of surfactant, stir evenly, and then add 1.7kg of phenolic resin. Mixture, after stirring and mixing for 30-40min, forming slurry is obtained;

[0035] ...

Embodiment 3

[0052] The prepared high-strength porous hollow microspheres are used in the preparation of high-strength heat-insulating coatings in the construction field. The specific preparation process is as follows: In the first step, 2.1kg of acrylic emulsion, 0.8kg of nano-titanium dioxide, 0.3kg of talcum powder, and 0.5kg of disperse Add the agent and 10kg water into the reaction vessel, stir and mix for 10-15min;

[0053] In the second step, then add 6.1kg of porous hollow microspheres prepared in Example 1, 0.3kg of thickener, 0.4kg of defoamer and 3.1kg of curing agent, and stir to obtain the heat-insulating coating;

[0054] The third step is to apply a layer of primer on the surface of the wall and brush the heat-insulating paint on the surface of the primer through a roller to obtain a high-strength heat-insulating coating.

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Abstract

The invention discloses a high-strength hollow heat-insulating building material. The specific preparation process is as follows: the first step is to prepare hydrolyzed plastic microspheres; the second step is to prepare molding slurry; the third step is to fill the molding slurry in the hydrolyzed plastic In the microspheres; the fourth step is to dry the filled plastic microspheres in a drying room at 80-85°C; the fifth step is to prepare the coating solution; the sixth step is to coat the surface of the filled plastic microspheres with a layer Coating liquid; the seventh step is to roast the dried coated microspheres to obtain high-strength porous hollow microspheres. The inside of the material prepared by the present invention is a network hollow structure. Since the internal support structure of the porous hollow microsphere is mainly prepared by silicon dioxide and aluminum oxide, it has low thermal conductivity, and due to the pore structure inside the microsphere, the heat When passing through the hollow microspheres and then passing through multiple channels, the heat decreases step by step, and the heat is lower when it is finally transferred to the surface of the wall, realizing the heat insulation effect in winter and summer.

Description

technical field [0001] The invention belongs to the field of building materials, and relates to a high-strength hollow heat-insulating building material and its application. Background technique [0002] Solar energy plays a vital role in the thermal environment and energy consumption of buildings. Infrared rays, which account for about 50% of the total solar energy, have a significant thermal effect on buildings. In summer, under the sun exposure, the surface of the building will continue to accumulate energy, resulting in a continuous increase in the surface and internal temperature. The energy consumption of air conditioners and other devices will increase accordingly, but it is difficult to obtain a lasting indoor temperature effect. At the same time, in the case of heating in winter, indoor When the temperature rises, when the temperature difference between indoor and outdoor is large, the heat in the room is easy to dissipate, making the room not insulated, so the heat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/06C04B35/10C04B26/06E04B1/76C04B35/634
CPCC04B26/06C04B35/10C04B35/63476C04B38/009C04B2111/00482C04B2201/32C04B2235/3244C04B2235/3418C04B2235/349C04B2235/3826C04B2235/96E04B1/76C04B38/0655C04B38/067C04B14/305C04B14/042C04B2103/408C04B22/002C04B18/027C04B2103/44C04B2103/50C04B2103/0068
Inventor 不公告发明人
Owner 四川汇园宝新材料科技有限公司