Polyurethane Foam Stabilizer DC-193: New options for energy saving and consumption reduction in building insulation materials
Introduction: From "warm artifact" to "green revolution"
In today's era of increasingly tense energy and increasingly severe climate change problems, building energy conservation has become the focus of global attention. As an important part of building energy conservation, the research and development and application of insulation materials undoubtedly play an important role. Just like when we wear thick down jackets in winter, putting a "warm coat" on the building can not only reduce heat loss, but also effectively reduce energy consumption. Among the many insulation materials, polyurethane foam stands out with its excellent performance and becomes a star material in the industry.
However, behind any high-performance material is the support of scientific formulas. In this "green revolution", polyurethane foam stabilizer DC-193 is like a hero behind the scenes, providing key help for the quality improvement and functional optimization of polyurethane foam. So, what exactly is it? Why is it so important? Today, we will uncover its mystery to you in an easy-to-understand language, combined with rich data and examples, and explore its great potential in the field of architectural insulation.
Chapter 1: Understanding Polyurethane Foam Stabilizer DC-193
What is polyurethane foam?
Polyurethane foam is a polymer material produced by the reaction of isocyanate and polyol. It has the characteristics of low density, small thermal conductivity, and excellent thermal insulation performance. It is widely used in refrigerators, water heaters, wall insulation and other fields, and is an indispensable part of modern building energy conservation. Simply put, polyurethane foam is like a "super thermos cup" that can isolate the temperature difference between indoor and outdoor to achieve energy-saving effects.
However, to make this magical material perform well, the raw material itself is not enough. This requires the introduction of some auxiliary components, such as catalysts, foaming agents, and stabilizers. Among them, the role of the stabilizer is particularly important - it is like a conductor in the band, responsible for coordinating the chemical reactions of individual systems to ensure the uniform and stable foam structure.
Definition of polyurethane foam stabilizer DC-193
Polyurethane foam stabilizer DC-193 is a nonionic surfactant, mainly composed of copolymerization of silicone and polyether blocks. It significantly improves the physical properties of polyurethane foam by reducing interfacial tension, promoting bubble formation and stabilizing the foam structure. Specifically, DC-193 can:
- Adjust the foam pore size: Make the bubble distribution inside the foam more evenly, avoiding too large or too small holes.
- Enhance mechanical strength: Improve the overall toughness and compressive resistance of the foam.
- Optimize processing performance: Improve the fluidity and mold release of foam, and facilitate large-scale production.
Main parameters of DC-193
To better understand the functional characteristics of DC-193, we can refer to the product parameters in the following table:
| parameter name | Value Range | Unit | Remarks |
|---|---|---|---|
| Appearance | Colorless to light yellow liquid | – | Clear and transparent |
| Viscosity | 500~1000 | mPa·s | Measured at 25℃ |
| Density | 1.02~1.06 | g/cm³ | Measured under 20℃ |
| Active content | ≥98% | % | High purity |
| pH value | 6~8 | – | Neutral |
| Solution | Easy soluble in water and alcohols | – | Good dispersion |
These parameters not only reflect the basic physical and chemical properties of DC-193, but also provide important guidance for practical applications.
Chapter 2: How DC-193 Works
The Magic of Surfactant
To understand how DC-193 works, you first need to understand the basic principles of surfactants. Surfactants are substances that can adsorb and reduce surface tension at the interface. During the preparation of polyurethane foam, DC-193 will quickly migrate to the junction of the liquid phase and the gas phase, forming a protective film to prevent the bubbles from bursting or merging.
To put it in a figurative metaphor, it is like the soapy water we use when blowing bubbles. Without soapy water, the air bubbles will quickly burst; but with soapy water, the bubbles can maintain stability for a long time. Likewise, the presence of DC-193 allows the bubbles in the polyurethane foam to maintain a stable form, thus forming an ideal microObserve the structure.
Foot pore size regulation mechanism
DC-193's regulation of foam pore size mainly depends on its unique molecular structure. Its siloxane segment imparts strong hydrophobicity, while the polyether segment provides good hydrophilicity. This amphiphilic characteristic allows it to play a balanced role in the foam system, neither over-suppressing bubble generation nor over-expansion of bubbles.
In addition, DC-193 also has a certain emulsification ability, which can evenly disperse the foaming agent in the entire system, thereby further improving the consistency of foam pore size. The following are the changes in the foam pore size under different addition amounts:
| Additional amount (wt%) | Average pore size (μm) | Standard deviation of pore size distribution |
|---|---|---|
| 0.5 | 75 | ±10 |
| 1.0 | 68 | ±8 |
| 1.5 | 62 | ±6 |
| 2.0 | 58 | ±5 |
It can be seen from the table that as the amount of DC-193 is added increases, the foam pore size gradually decreases and the distribution becomes more concentrated. However, it should be noted that excessive use may lead to too small pore size, affecting the breathability and flexibility of the foam.
The Secret to Improve Mechanical Performance
In addition to adjusting the pore size, DC-193 can also significantly improve the mechanical properties of the foam. This is because its molecular structure can form a special network structure during the foam curing process, which enhances the overall strength of the foam. Studies have shown that when the appropriate amount of DC-193 is added, the compressive strength of the foam can be increased by more than 20%.
| Performance metrics | Comparison results (Not added/added to DC-193) |
|---|---|
| Compression Strength (MPa) | 0.4 / 0.48 |
| Tension Strength (MPa) | 0.25 / 0.32 |
| Elongation of Break (%) | 120 / 150 |
Chapter 3: Advantages of DC-193 in building insulation
A weapon for energy saving and consumption reduction
In the field of building insulation, the core task of polyurethane foam is to prevent heat transfer. DC-193 greatly reduces the thermal conductivity of the material by optimizing the foam structure. According to experimental data, the thermal conductivity of polyurethane foam modified with DC-193 can be reduced to below 0.022 W/(m·K), which is much lower than that of traditional insulation materials such as rock wool (0.040 W/(m·K)) and EPS (0.038 W/(m·K)).
This means that at the same thickness, DC-193 modified polyurethane foam can provide better insulation, thereby reducing energy consumption required for heating or cooling. Assuming that the annual heating cost of an ordinary house is 5,000 yuan, and after using efficient insulation materials, this number is expected to drop to about 3,000 yuan, saving nearly 40% of the expenses.
Environmental Protection and Sustainable Development
In addition to energy saving and consumption reduction, DC-193 also has good environmental protection performance. As a nonionic surfactant, it will not release harmful substances and meet the current green and environmental protection requirements. In addition, due to its efficient performance, the use of other chemicals can be reduced and the impact on the environment can be further reduced.
It is worth noting that DC-193 can also be used in conjunction with other environmentally friendly foaming agents (such as CO₂ or HFO) to completely replace traditional Freon foaming agents, thereby avoiding ozone layer damage. This combination solution has been promoted and used by many countries and regions, and has become the mainstream trend in the future development of building insulation materials.
Economic Benefit Analysis
From an economic perspective, the application of DC-193 also brings significant cost advantages. Although its unit price is relatively high, due to the small amount and significant effect, the overall investment is not large. For example, in the production of polyurethane foam per ton of polyurethane foam, the amount of DC-193 is usually only 1~2kg, and the cost is less than 50 yuan. The performance improvement brought about by this may create several times or even dozens of times the value for the company.
Chapter 4: Research progress and case sharing at home and abroad
Domestic research results
In recent years, my country's scientific research institutions and enterprises have made many breakthroughs in the field of polyurethane foam stabilizers. For example, a university team developed a composite stabilizer based on DC-193 improvement, which successfully reduced the thermal conductivity of the foam to 0.020 W/(m·K), reaching the international leading level. This result has been applied to many large-scale engineering projects and has been widely recognized.
At the same time, domestic companies are also actively promoting the localization process of DC-193. At present, several manufacturers have achieved large-scale production, with product quality close to imported products, but their prices are more competitive. This not only helps reduce industryThis also injects new vitality into my country's construction energy conservation industry.
International Frontier Trends
In foreign countries, the research on polyurethane foam stabilizers focuses on functionalization and intelligence. For example, a German company has developed an intelligent DC-193 derivative that can automatically adjust the size of the foam pore size according to changes in the external temperature to achieve dynamic insulation effect. Although this technology is not yet mature, it has shown great development potential.
In addition, American researchers also found that modifying DC-193 through nanotechnology can significantly improve its dispersion and stability and further expand its application range. These innovative achievements have pointed out the direction for the future development of building insulation materials.
Practical Application Cases
After
, let's take a look at a specific case. A high-rise residential building in a northern city uses DC-193 modified polyurethane foam as exterior wall insulation material. After a year of operation monitoring, the results showed that the building's indoor temperature increased by 2℃ on average in winter, and the air conditioner energy consumption decreased by 30% in summer. Residents generally reported that their living comfort has increased significantly, and monthly electricity bills have also decreased.
Conclusion: Going towards a greener future
Polyurethane foam stabilizer DC-193 is undoubtedly a shining pearl in the field of building insulation materials. With its outstanding performance and wide applicability, it is gradually changing our lives. Whether from the perspective of energy conservation and consumption reduction or from the perspective of environmental protection, DC-193 provides us with a brand new choice.
Of course, no technology can be perfect. In the future, we need to continue to deepen the research on its mechanism, explore more possibilities, and strive to achieve higher-level breakthroughs. I believe that in the near future, DC-193 and its related technologies will become a powerful driving force for promoting energy conservation in building and even the sustainable development of the entire society!
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