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Roof thermal insulation material and thermal energy circulation water supply system and preparation method thereof

A technology of circulating water supply and thermal insulation, which is applied in the field of building thermal insulation, can solve problems such as the inability to achieve effective utilization of solar heat, and achieve the effects of good thermal insulation and thermal energy utilization, and convenient use.

Inactive Publication Date: 2018-02-23
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the existing thermal insulation materials cannot effectively utilize the heat of solar energy while maintaining thermal insulation.

Method used

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  • Roof thermal insulation material and thermal energy circulation water supply system and preparation method thereof
  • Roof thermal insulation material and thermal energy circulation water supply system and preparation method thereof
  • Roof thermal insulation material and thermal energy circulation water supply system and preparation method thereof

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preparation example Construction

[0039] The embodiment of the present invention also provides a method for preparing a roof thermal energy circulating water supply system, which is used to prepare the roof thermal energy circulating water supply system of the present invention, comprising:

[0040] The roof adopts black HDPE geomembrane welding and sealing to assemble into a container body with water inlet and outlet, and the roof heat insulation material of the present invention is encapsulated in the container body;

[0041] A part of the pipe body of the heat pipe is arranged in the roof heat insulation material packaged by the container body, and another part of the pipe body of the heat pipe is arranged in the roof water storage tank with a water supply pipe.

[0042]In the above-mentioned preparation method, the sealed volume of the container body is: 4.5:7.5 according to the ratio of the injected water volume per square meter to the total sealed volume; the heat pipe is a vacuum enclosed space formed by...

Embodiment 1

[0049] This embodiment provides a roof thermal insulation material, which is synthesized by the following method:

[0050] The raw materials of corn stalks, ammonia water, nitric acid solution, acrylic acid monomer, sodium hydroxide, ammonium persulfate and N, N-methylenebisacrylamide are synthesized by solution polymerization.

[0051] The preparation steps of the above method specifically include the following steps:

[0052] 1) Pretreatment of straw: the cleaned corn straw is crushed; soaked in 10% (mass fraction) ammonia water for 3 hours, suction filtered, and boiled in 1mol / L nitric acid solution for 45 minutes to obtain the pretreated corn straw;

[0053] 2) Synthetic acrylic resin: Acrylic acid monomer is diluted with water, neutralized by adding NaOH, neutralization degree of acrylic acid: 75%

[0054] 3) Add neutralized acrylic acid monomer, pretreated corn stalks, and ammonium persulfate as an initiator to the flask, react at 60°C for 60 minutes, and the solution i...

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Abstract

The invention discloses a roof thermal insulation material, a roof thermal energy circulation water supply system and a preparation method thereof. The material uses corn stalks, ammonia water, nitric acid solution, acrylic acid monomer, sodium hydroxide, an initiator, and a crosslinking agent as raw materials. The pretreated straw and solution are polymerized into a gel-like resin material capable of absorbing water. The present invention abandons the thermal insulation mechanism of reducing the heat transfer rate of traditional thermal insulation materials, and uses corn stalks and acrylic acid monomers as the main raw materials, together with ammonia water, nitric acid solution, sodium hydroxide, initiator and crosslinking agent Treatment of straw and solution polymerization to realize the copolymerization of corn stalks as raw materials and acrylic acid as a water-absorbing medium, grafting acrylic acid monomers into straw cellulose skeletons, using corn stalks as resin skeletons, and forming a gel-like roof with good water absorption for thermal insulation The material can use the sensible heat change of the absorbed water to absorb heat and release heat for thermal insulation.

Description

technical field [0001] The invention relates to the field of building thermal insulation, in particular to a roof thermal insulation material, a thermal energy circulation water supply system and a preparation method thereof. Background technique [0002] At present, domestic and foreign researches on building thermal insulation materials mainly focus on thermal insulation boards and thermal insulation coatings. The most commonly used thermal insulation board in China is polystyrene foam board. Polystyrene foam has the characteristics of good thermal insulation performance, light weight, and sound absorption. However, the installation of polystyrene foam plastic board is easy to cause thermal bridges and cracks on the insulation wall, and it is difficult to combine with the brick wall. A slight negligence in construction will cause hollowing and falling off, which will bring accident hazards. Thermal insulation coatings are less popular than thermal insulation panels in my ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F251/02C08F220/06E04D13/16
Inventor 孙晓民贲文言郑涛杨迪
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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