Polyurethane rigid foam used for thermal insulation technique of wall

A technology of rigid polyurethane foam and polyurethane spraying, which is applied in thermal insulation, building components, construction, etc., can solve problems such as thermal and cold bridges, and achieve the effects of low thermal conductivity, increased service life, and strong adhesion

Inactive Publication Date: 2012-12-12
安徽省科捷能源科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of assembly or construction joints in the thermal insulation layer of the existing polystyrene material wall insulation process, the phenomenon of "thermal and cold bridge" that is prone to occur, and the defects of quality and safety hidden dangers such as cracking

Method used

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  • Polyurethane rigid foam used for thermal insulation technique of wall
  • Polyurethane rigid foam used for thermal insulation technique of wall

Examples

Experimental program
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Embodiment

[0018] The technological process of polyurethane rigid foam used for wall insulation is as follows: base wall cleaning, painting polyurethane moisture-proof primer, spraying polyurethane rigid foam insulation material, coating interface mortar, applying anti-cracking mortar, laying grid cloth, and wiping the second layer. The anti-cracking mortar is applied twice, the second layer of glass fiber mesh cloth is pressed in, and finally the exterior decoration construction is carried out.

[0019] In this embodiment, in the steps of applying anti-cracking mortar and laying grid cloth, what is laid and pressed is alkali-resistant grid cloth.

[0020] In this embodiment, glass fiber is added to the rigid polyurethane foam as a toughening agent. Polyester fiber can also be added as a toughening agent. After the toughening agent is added, the single micropores can be cross-linked with each other to form a network structure, which solves the problem of powder dropping and further enha...

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Abstract

The invention relates to a polyurethane rigid foam used for a thermal insulation process of a wall, wherein the process flow comprises cleaning a foundation wall, coating an anti-mist polyurethane primer, spraying the thermal insulation polyurethane rigid foam, coating interface treating agent, plastering anti-crack mortar, laying fiberglass mesh, plastering the anti-crack mortar for the second time, pressing the second fiberglass mesh and conducting exterior decoration. Compared with prior art, the polyurethane rigid foam adopted in the invention has a stronger adhesion force. As the overall construction is conducted, there is no assemble joint or construction joint in a thermal insulation layer; the phenomenon of 'hot-cold bridge' is avoided; the service life of the thermal insulation layer of the wall is prolonged; and in addition, as the adopted polyurethane rigid foam is low in heat conductivity factor, the thermal insulation performance of the wall adopting the process is better.

Description

technical field [0001] The invention relates to wall heat preservation technology, in particular to polyurethane rigid foam used in wall heat preservation technology. Background technique [0002] In my country, 40% of building energy consumption is used for heating (heating) and hot water in housing space, so housing space heating has the greatest and most sustainable energy-saving potential. In general buildings, take residential buildings as an example: the heat transfer through the envelope structure is about 72% of the building's energy consumption, and the air infiltration is about 28% of the building's energy consumption. In the heat transfer of the envelope structure, the outer wall The heat transfer rate of the building is 24%, the roof and the ground are generally about 10%, the stairwell wall is about 10%, and the heat transfer rate of the window is 22%. According to my country's second-stage energy-saving standards for heated residential buildings, the heat tran...

Claims

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Application Information

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IPC IPC(8): E04G21/00E04B1/76
Inventor 王光荣孙超
Owner 安徽省科捷能源科技有限公司
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