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Energy-saving thermal insulation material for external walls and preparation method of thermal insulation material

A technology of thermal insulation materials and thermal insulation exterior walls, which is applied in thermal insulation, building components, climate change adaptation, etc., and can solve problems such as limiting the development of thermal insulation materials and environmental pollution

Inactive Publication Date: 2017-12-15
WUHU SANSHAN LONGCHENG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing foamed plastics can play the role of heat preservation, it has serious environmental pollution, which limits the development of heat preservation materials.

Method used

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  • Energy-saving thermal insulation material for external walls and preparation method of thermal insulation material

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preparation example Construction

[0013] The invention provides a preparation method of an energy-saving heat-preservation external wall heat-insulation material, comprising:

[0014] 1) mixing water and agaricine to obtain an aqueous solution of abacusine;

[0015] 2) Adding asbestos, carbon fiber, nano-alumina and nano-kaolin to an aqueous solution of sodium silicate for contact reaction, and then filtering, drying and calcining the reaction product to obtain a calcined product;

[0016] 3) Ball milling nano-aluminum, polyvinyl alcohol and calcined materials to obtain energy-saving and thermal insulation materials for external walls.

[0017] In step 1) of the present invention, the amount of each material can be selected within a wide range, but in order to make the prepared thermal insulation material have more excellent thermal insulation performance, preferably, in step 1), water and sodium hydroxide The weight ratio is 100:40-45.

[0018] In step 1) of the present invention, the mixing conditions can ...

Embodiment 1

[0028] 1) Mix water and agaricine according to the weight ratio of 100:42 at 50°C for 3 hours to prepare an aqueous solution of agaricine;

[0029] 2) Mix asbestos, carbon fiber, nano-alumina (average particle size 10nm), nano-kaolin (average particle size 22nm), and sodium hydroxide solution at 110°C in a weight ratio of 100:18:55:10:400 contact reaction for 8 hours, and then filter the reaction product, dry (with a moisture content lower than 0.1% by weight), and calcinate at 420°C for 3 hours to obtain a calcined product;

[0030] 3) Ball mill nano-aluminum (average particle size 15nm), polyvinyl alcohol and calcined material at a weight ratio of 10:35:90 (the mass ratio of balls to small balls is 3:1.4, and the mass ratio of balls to materials is 10:2.4, the rotating speed is 1300rpm, and the ball milling time is 30min) to obtain energy-saving thermal insulation material A1 for external wall insulation.

Embodiment 2

[0032] 1) Mix water and agaricine according to the weight ratio of 100:40 at 40°C for 2 hours to prepare an aqueous solution of agaricine;

[0033] 2) Asbestos, carbon fiber, nano-alumina (average particle size: 5nm), nano-kaolin (average particle size: 20nm), 100: 15: 50: 7: 300 aqueous sodium silicate solution are mixed at 100°C according to the weight ratio Contact reaction for 6 hours, then filter the reaction product, dry (with a moisture content lower than 0.1% by weight), and calcinate at 400°C for 2 hours to obtain a calcined product;

[0034] 3) Ball mill nano-aluminum (average particle size: 10nm), polyvinyl alcohol, and calcined material at a weight ratio of 10:30:80 (the mass ratio of balls to small balls is 3:1.3, and the mass ratio of balls to materials is 10:2.4, rotating speed is 1200rpm, ball milling time is 25min) to obtain energy-saving thermal insulation material A2

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Abstract

The invention discloses an energy-saving thermal insulation material for external walls and a preparation method of the thermal insulation material. The preparation method comprises the steps as follows: 1) water and sodium silicate are mixed and a sodium silicate aqueous solution is prepared; 2) asbestos, carbon fiber, nano aluminum dioxide and nano kaolin are added to the sodium silicate aqueous solution to be subjected to a contact reaction, a reaction product is filtered, dried and calcined, and a calcined product is prepared; 3) nano aluminum, polyvinyl alcohol and the calcined product are subjected to ball milling, and the energy-saving thermal insulation material for the external walls is prepared. The energy-saving thermal insulation material for the external walls has excellent thermal insulation and environmental protection effects.

Description

technical field [0001] The invention relates to thermal insulation materials, in particular to an energy-saving thermal insulation external wall thermal insulation material and a preparation method thereof. Background technique [0002] Insulation materials are generally materials with a thermal coefficient less than or equal to 0.12. The development of thermal insulation materials is rapid, and the use of good thermal insulation technology and materials in industry and construction can often achieve twice the result with half the effort. Every ton of mineral wool insulation products used in buildings can save one ton of oil a year. [0003] At present, foamed plastics are more common thermal insulation materials; foamed plastics are plastic products made of synthetic resin and have numerous small holes inside. It has the advantages of low thermal conductivity and processing molding, and is mainly used in the packaging industry (such as Refrigerator), underground direct bu...

Claims

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Application Information

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IPC IPC(8): C04B28/26E04B1/76
CPCC04B28/26C04B2201/32E04B1/76C04B14/40C04B14/386C04B22/06C04B14/106C04B22/04C04B24/2623Y02A30/00Y02B30/90
Inventor 杨荣军杨荣兵赵传东
Owner WUHU SANSHAN LONGCHENG NEW MATERIALS