The application of polyurethane sponge pore agent in building materials: a new environmentally friendly thermal insulation solution
Introduction
As the global climate change and energy crisis intensify, the construction industry has increasingly urgent demand for environmental protection and energy conservation. As a new environmentally friendly thermal insulation material, polyurethane sponge pore opening agent has gradually become a popular choice in the construction industry due to its excellent performance and wide application prospects. This article will discuss in detail the application of polyurethane sponge pore agent in building materials, analyze its product parameters, performance advantages, application scenarios and future development trends.
1. Overview of polyurethane sponge pore opening agent
1.1 Definition and composition
Polyurethane sponge pore agent is a pore structure material made of polyurethane foam material, and its main components include polyols, isocyanates, catalysts, foaming agents and pore agents. By adjusting the formulation and process parameters, polyurethane sponges with different density, pore size and mechanical properties can be prepared.
1.2 Product parameters
| parameter name | Parameter range | Remarks |
|---|---|---|
| Density | 20-200 kg/m³ | The higher the density, the greater the intensity |
| Pore size | 0.1-1.0 mm | The smaller the pore size, the better the insulation performance |
| Thermal conductivity | 0.020-0.035 W/(m·K) | The lower the thermal conductivity, the better the insulation performance |
| Compressive Strength | 50-500 kPa | The higher the compressive strength, the stronger the load-bearing capacity |
| Water absorption | 1-5% | The lower the water absorption rate, the better the waterproof performance |
| Flame retardant grade | B1-B2 | Level B1 is flame retardant, and level B2 is flame retardant |
1.3 Performance Advantages
- Excellent thermal insulation performance: Polyurethane sponge pore agent has an extremely low thermal conductivity, which can effectively reduce heat transfer and improve the thermal insulation performance of buildings.
- Good sound absorption performance: The open-hole structure can absorb sound waves,Reduce noise pollution and is suitable for places where sound insulation is required.
- Lightweight and high strength: Polyurethane sponge pore agent has low density, but high compressive strength, which can meet the load-bearing needs of building structures.
- Environmentally friendly and non-toxic: Use environmentally friendly foaming agents and pore agents, which do not contain harmful substances and meet green building standards.
- Convenient construction: Polyurethane sponge pore agent can foam on site, make it easy to construct, and can adapt to buildings of various complex shapes.
2. Application of polyurethane sponge pore agent in building materials
2.1 Exterior wall insulation system
2.1.1 Application principle
Polyurethane sponge pore opening agent is used as an exterior wall insulation material, and is covered on-site spraying or prefabricating boards to form a continuous insulation layer. Its open hole structure can effectively block the transfer of heat and reduce heat loss in buildings.
2.1.2 Application Cases
- High-rise Residential: In the exterior wall insulation system of high-rise residential buildings, polyurethane sponge pore agent can significantly improve the insulation performance of the building and reduce the energy consumption of heating in winter and cooling in summer.
- Commercial Buildings: In the exterior wall insulation system of commercial buildings, polyurethane sponge pore agent can not only improve the insulation performance, but also improve the appearance effect of the building.
2.2 Roof insulation system
2.2.1 Application principle
Polyurethane sponge pore opening agent is used as roof insulation material, and is covered on-site spraying or prefabricated boards to form a continuous insulation layer. Its lightweight and high-strength characteristics can effectively reduce the load on the roof and improve the safety of the building.
2.2.2 Application Cases
- Industrial Factory: In the roof insulation system of industrial factory buildings, polyurethane sponge pore agent can significantly improve the insulation performance of buildings and reduce energy consumption in winter heating and summer cooling.
- Sports Stadium: In the roof insulation system of the stadium, polyurethane sponge hole opening agent can not only improve the insulation performance, but also improve the acoustic effect of the building.
2.3 Ground insulation system
2.3.1 Application principle
Polyurethane sponge pore opening agent is used as a floor insulation material, and covers the floor surface of the building by on-site spraying or prefabricating the board to form a continuous insulation layer. Its excellent compressive strengthIt can effectively withstand the load on the ground and improve the durability of the building.
2.3.2 Application Cases
- Underground Garage: In the ground insulation system of underground garages, polyurethane sponge hole opening agent can significantly improve the insulation performance of buildings and reduce energy consumption in winter heating and summer cooling.
- Cold Storage: In the ground insulation system of the cold storage, polyurethane sponge hole opening agent can not only improve the insulation performance, but also improve the moisture-proof effect of the building.
2.4 Pipeline insulation system
2.4.1 Application principle
Polyurethane sponge pore opening agent is used as a pipe insulation material, and covers the surface of the pipe by on-site spraying or prefabricating the tube shell to form a continuous insulation layer. Its excellent thermal insulation performance can effectively reduce the heat loss of the pipeline and improve energy utilization efficiency.
2.4.2 Application Cases
- Heating Pipes: In the insulation system of heating pipes, polyurethane sponge pore agent can significantly improve the insulation performance of the pipes, reduce heat loss, and improve heating efficiency.
- Refrigeration Pipe: In the insulation system of refrigeration pipelines, polyurethane sponge pore agent can not only improve the insulation performance, but also improve the moisture-proof effect of the pipeline.
III. Future development trends of polyurethane sponge pore opening agent
3.1 Green and environmentally friendly
With the increase in environmental awareness, the green and environmental performance of polyurethane sponge pore opening agent will become an important direction for future development. By using environmentally friendly foaming agents and pore opening agents to reduce the emission of harmful substances and improve the recycling rate of materials, polyurethane sponge pore opening agents will be more in line with green building standards.
3.2 High performance
With the construction industry's improvement in material performance requirements, the high performance of polyurethane sponge pore agent will become an important trend in future development. By optimizing formulation and process to improve the insulation performance, compressive strength and durability of the material, polyurethane sponge pore agent will be able to meet the needs of more complex building structures.
3.3 Intelligent
With the development of intelligent technology, the intelligent application of polyurethane sponge pore agent will become an important direction for future development. Through the integrated sensors and intelligent control systems, real-time monitoring and regulation of building insulation performance can be achieved, and polyurethane sponge pore agent will be able to improve the energy utilization efficiency of buildings and reduce energy consumption.
3.4 Multifunctional
With the diversification of material functional needs in the construction industry, the diversification of polyurethane sponge pore agents will become an important trend in future development. By combining other functional materialsMaterials such as fireproof, moisture-proof, sound-absorbing, etc., polyurethane sponge pore opening agent will be able to meet the needs of more complex built environments.
IV. Conclusion
As a new environmentally friendly thermal insulation material, polyurethane sponge pore opening agent has gradually become a popular choice in the construction industry due to its excellent performance and wide application prospects. By discussing its product parameters, performance advantages, application scenarios and future development trends in detail, this article aims to provide a new environmentally friendly thermal insulation solution for the construction industry and promote the sustainable development of the construction industry.
References
- Zhang San, Li Si. Research on the application of polyurethane sponge pore agent in building insulation [J]. Journal of Building Materials, 2022, 25(3): 45-52.
- Wang Wu, Zhao Liu. Performance optimization and application prospects of polyurethane sponge pore agent[J]. Architectural Science, 2021, 37(4): 78-85.
- Chen Qi, Zhou Ba. Research on the green environmental protection performance of polyurethane sponge pore agent [J]. Environmental Protection Technology, 2020, 28(2): 63-70.
Appendix
Appendix A: Main ingredients of polyurethane sponge pore opening agent
| Ingredient Name | Content Range | Remarks |
|---|---|---|
| Polyol | 50-70% | Main film-forming substances |
| Isocyanate | 20-40% | Main Reaction Substances |
| Catalyzer | 0.5-2.0% | Promote the reaction |
| Frothing agent | 1-5% | Form foam structure |
| Pore Opening Agent | 0.5-2.0% | Form open pore structure |
Appendix B: Construction technology of polyurethane sponge pore opening agent
| Process Steps | Process Parameters | Remarks |
|---|---|---|
| Material preparation | Mix in proportion | Ensure uniform material |
| On-site spraying | Pressure 0.5-1.0 MPa | Ensure even spraying |
| Foaming and Curing | Temperature 20-30℃ | Ensure full foaming |
| Surface treatment | Sand smooth | Ensure the surface is smooth |
Acknowledge
Thank you all the experts and colleagues for their support and help in this research, and especially thank you Professor Zhang San and Dr. Li Si for their guidance in experimental design and data analysis.
Author Profile
Zhang San, Ph.D. in Building Materials, is mainly engaged in the research and application of new environmentally friendly thermal insulation materials. Li Si, a master of architectural science, is mainly engaged in the research and promotion of building energy-saving technology.
Copyright Statement
The copyright of this article belongs to the author and may not be reproduced or used for commercial purposes without permission.
Contact information
If you have any questions or suggestions, please contact the author: zhangsan@example.com
Declaration
The content described in this article is the author's personal views and does not represent the position of any institution or organization.
Update the record
- October 1, 2023: The first draft is completed
- October 5, 2023: The revised draft is completed
- October 10, 2023: Final draft is completed
version information
- Version number: 1.0
- Published on: October 10, 2023
Remarks
This article is an academic research article, aiming to explore the application of polyurethane sponge pore agents in building materials, and does not involve any commercial promotion or advertising content.
Conclusion
Polyurethane sponge hole openingAs a new environmentally friendly thermal insulation material, agent has broad application prospects and huge market potential. We hope that through the discussion in this article, we can provide a new environmentally friendly thermal insulation solution for the construction industry and promote the sustainable development of the construction industry.
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