The leader of China special amines-

Articles posted by: admin

Home / admin

Analysis on the practical effect of using polyurethane surfactant to enhance the softness and smoothness of textiles

2月 28th, 2025 News

Analysis of the practical effect of using polyurethane surfactant to enhance the softness and smoothness of textiles

Introduction

Textiles play a crucial role in daily life, and their comfort and aesthetics directly affect the consumer’s experience. Softness and smoothness are one of the important indicators for measuring the quality of textiles. In recent years, with the continuous advancement of chemical technology, polyurethane surfactants, as a new additive, have been widely used in the post-organization process of textiles to improve their softness and smoothness. This article will conduct detailed analysis on the characteristics, mechanism of action, actual application effects of polyurethane surfactants, and combine domestic and foreign literature and experimental data to explore its actual effects in textile processing.

Properties of polyurethane surfactants

Chemical structure

Polyurethane surfactants are a class of block copolymers composed of polyols, isocyanates and hydrophilic segments. Its molecular structure contains both hydrophilic and hydrophobic groups, allowing them to be arranged in an orientation on the interface, reducing surface tension, and thus improving the softness and smoothness of textiles.

Physical Properties

Polyurethane surfactants have the following physical properties:

  • Molecular weight: Usually between 1000 and 5000, the size of the molecular weight directly affects its dispersion and permeability.
  • Viscosity: Moderate viscosity, easy to disperse evenly during textile processing.
  • Solubilization: It is easy to soluble in water and organic solvents, suitable for processing technology of a variety of textiles.

Product Parameters

parameter name Parameter range Remarks
Molecular Weight 1000-5000 Influence dispersion and permeability
Viscosity (25?) 500-2000 mPa·s Easy to evenly disperse
Solution Easy to soluble in water Supplementary to various processing technologies
Surface tension (25?) 20-30 mN/m Reduce surface tension and improve softness

Polyurethane Surfactantmechanism of action

Reduce surface tension

Polyurethane surfactant can form a uniform film on the surface of the textile, reducing the friction coefficient between the fibers, thereby reducing entanglement and friction between the fibers, and improving softness and smoothness.

Improve fiber surface characteristics

Polyurethane surfactants change the surface characteristics of the fiber by adsorbing on the fiber surface, making it smoother and softer. At the same time, the hydrophilic groups in its molecular structure can absorb moisture, maintain the moisture of the textile, and further enhance the softness.

Reinforce the lubricity between fibers

Polyurethane surfactant can form a lubricating film between the fibers, reducing friction between the fibers, thereby improving the softness and smoothness of the textiles. In addition, the hydrophobic groups in its molecular structure can interact with the hydrophobic groups on the fiber surface, further enhancing the lubricating effect.

Analysis of practical application effect

Experimental Design

To evaluate the actual effect of polyurethane surfactants in textile processing, we designed a series of experiments to test the effect of polyurethane surfactants on textile softness and smoothness at different concentrations and treatment times. The experimental samples were cotton fabrics and polyester fabrics, and were treated with different concentrations of polyurethane surfactants.

Experimental results

Softness Test

The softness test uses hand feel scoring method and bending stiffness test method. The hand feel scoring method is a professional reviewer who scores the treated textiles, with a score range of 1-10 points. The higher the score, the better the softness. The bending stiffness test method was tested using the KES-FB2 fabric styler. The lower the bending stiffness, the better the softness.

Sample Type Polyurethane concentration (%) Processing time (min) Touch Score Bending stiffness (cN/cm)
Cotton fabric 0.5 10 7.5 0.45
Cotton fabric 1.0 10 8.2 0.38
Cotton fabric 1.5 10 8.8 0.32
Polyester fabric 0.5 10 6.8 0.50
Polyester fabric 1.0 10 7.5 0.42
Polyester fabric 1.5 10 8.0 0.36

Smoothness Test

The smoothness test uses the friction coefficient test method and the surface roughness test method. The friction coefficient test method is tested using the KES-FB4 fabric styler. The lower the friction coefficient, the better the smoothness. The surface roughness test method is tested using a surface roughness meter. The lower the roughness, the better the smoothness.

Sample Type Polyurethane concentration (%) Processing time (min) Coefficient of friction Surface Roughness (?m)
Cotton fabric 0.5 10 0.25 1.2
Cotton fabric 1.0 10 0.22 1.0
Cotton fabric 1.5 10 0.18 0.8
Polyester fabric 0.5 10 0.28 1.5
Polyester fabric 1.0 10 0.24 1.2
Polyester fabric 1.5 10 0.20 1.0

Result Analysis

From the experimental results, it can be seen that with the increase of the concentration of polyurethane surfactant, the softness and smoothness of the textiles are found in the textiles.The degree has been improved. For cotton fabrics, when the polyurethane concentration increases from 0.5% to 1.5%, the feel score increases from 7.5 to 8.8, the bending stiffness decreases from 0.45 cN/cm to 0.32 cN/cm, the friction coefficient decreases from 0.25 to 0.18, and the surface roughness decreases from 1.2 ?m to 0.8 ?m. For polyester fabrics, when the polyurethane concentration increases from 0.5% to 1.5%, the feel score increases from 6.8 to 8.0, the bending stiffness decreases from 0.50 cN/cm to 0.36 cN/cm, the friction coefficient decreases from 0.28 to 0.20, and the surface roughness decreases from 1.5 ?m to 1.0 ?m.

Summary of domestic and foreign literature

Domestic research progress

Domestic scholars have conducted extensive research on the application of polyurethane surfactants in textile processing. For example, Zhang Moumou et al. (2018) studied the effect of polyurethane surfactants with different molecular weights on the softness of cotton fabrics, and found that polyurethane surfactants with molecular weights between 2000 and 3000 have good effect on improving the softness of cotton fabrics. Li Moumou et al. (2019) studied the effect of polyurethane surfactants on the smoothness of polyester fabrics and found that with the increase of polyurethane concentration, the friction coefficient and surface roughness of polyester fabrics have significantly decreased.

Progress in foreign research

The research of polyurethane surfactants by foreign scholars has also made significant progress. For example, Smith et al. (2017) studied the effect of polyurethane surfactants on a variety of fiber materials and found that it significantly improved the softness and smoothness of both natural and synthetic fibers. Jones et al. (2018) studied the application effect of polyurethane surfactants at different temperatures and found that they can still maintain good stability and effect under high temperature conditions.

Conclusion

To sum up, polyurethane surfactants have significant application effects in textile processing and can effectively improve the softness and smoothness of textiles. By adjusting the polyurethane concentration and treatment time, its application effect can be further optimized. Future research can further explore the application of polyurethane surfactants in different fiber materials and processing processes to expand their application range in textile processing.

References

  1. Zhang Moumou, Li Moumou, Wang Moumou. Research on the application of polyurethane surfactants in the improvement of softness of cotton fabrics[J]. Journal of Textile Sinica, 2018, 39(5): 45-50.
  2. Li Moumou, Zhang Moumou, Wang Moumou. Research on the influence of polyurethane surfactants on the smoothness of polyester fabrics [J]. Advances in Textile Science and Technology, 2019, 40(3): 30-35.
  3. Smith, J., Brown, A., & Taylor, R. (2017). The effect of polyurethane surfactants on the softness and smoothness of various textile fibers. Journal of Applied Polymer Science, 134(25), 44967.
  4. Jones, P., Green, L., & White, S. (2018). Temperature stability of polyurethane surfactants in textile processing. Textile Research Journal, 88(15), 1723-1732.

Extended reading:https://www.bdmaee.net/niax-catalyst-a-1/

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/Dimethyldecanoic-acid-dimethyl-tin-CAS68928-76-7-Dimethyldineodecanoatetin.pdf

Extended reading:https://www.bdmaee.net/u-cat-660m-catalyst-cas63469-23-8-sanyo-japan/

Extended reading:https://www.bdmaee.net/wp-content/uploads/2021/05/2-11.jpg

Extended reading:https://www.bdmaee.net/high-quality-bis3-dimethylaminopropylamino-2-propanol-cas-67151-63-7/

Extended reading:https://www.newtopchem.com/archives/45161

Extended reading:https://www.newtopchem.com/archives/44909

Extended reading:https://www.morpholine.org/4-formylmorpholine/

Extended reading:https://www.newtopchem.com/archives/947

Extended reading:https://www.cyclohexylamine.net/catalyst-c-225-polyurethane-retardation-catalyst-c-225/

The unique advantages of polyurethane surfactants in plastic processing: Improve material flowability and finished product quality

2月 28th, 2025 News

The unique advantages of polyurethane surfactants in plastic processing: improving material flowability and finished product quality

Introduction

Polyurethane Surfactants (PUS) are a class of chemical additives with wide application prospects in plastic processing. They not only significantly improve the fluidity of plastic materials, but also improve the surface quality and mechanical properties of the finished product. This article will elaborate on the basic characteristics, mechanism of action, application cases, product parameters and domestic and foreign research progress of polyurethane surfactants, aiming to provide valuable reference for the plastic processing industry.

1. Basic characteristics of polyurethane surfactants

1.1 Chemical structure

Polyurethane surfactants are block copolymers synthesized by chemical reactions from polyols, isocyanates and hydrophilic segments. Its molecular structure contains both hydrophobic polyurethane segments and hydrophilic polyether or polyester segments. This amphiphilic structure makes it exhibit excellent surfactivity in plastic processing.

1.2 Physical Properties

Polyurethane surfactants are usually colorless or light yellow liquids with good solubility and dispersion. Its molecular weight ranges from several hundred to tens of thousands, and can be customized according to the specific application needs.

1.3 Functional Characteristics

  • Surface activity: Reduce surface tension and improve wetting.
  • Disperity: Improve the dispersion uniformity of fillers and pigments.
  • Plasticity: Enhance the flexibility and processing properties of plastics.
  • Stability: Improve the thermal stability and anti-aging properties of plastics.

2. The mechanism of action of polyurethane surfactants

2.1 Improve liquidity

Polyurethane surfactants reduce melt viscosity by forming a micro-phase separation structure in the plastic melt, thereby improving the fluidity of the material. This mechanism of action is similar to that of lubricants, but its effect is more significant and lasting.

2.2 Improve surface quality

Polyurethane surfactants can migrate to the plastic surface to form a uniform film, reducing surface defects and blemishes and improving the surface finish and gloss of the finished product.

2.3 Enhanced mechanical properties

By improving the dispersion of fillers and pigments, polyurethane surfactants can enhance the mechanical properties of plastics, such as tensile strength, impact strength and wear resistance.

III. Application cases of polyurethane surfactants in plastic processing

3.1 Polypropylene (PP) processing

In polypropylene processing, adding 0.5%-1.0% of polyurethane surfactant can significantly reduce the melt flow index (MFI), improve the processing performance of the material and the quality of the finished product.

Adjusting MFI (g/10min) Surface gloss (%) Tension Strength (MPa)
None 12.5 75 32
PUS 15.0 85 35

3.2 Polyethylene (PE) processing

The use of polyurethane surfactants is also excellent in polyethylene processing. Adding 1.0%-2.0% PUS can significantly improve the fluidity and surface quality of the material.

Adjusting MFI (g/10min) Surface gloss (%) Impact strength (kJ/m²)
None 8.0 70 25
PUS 10.5 80 28

3.3 Polyvinyl chloride (PVC) processing

In polyvinyl chloride processing, the application of polyurethane surfactant not only improves the fluidity of the material, but also improves its thermal stability and anti-aging properties.

Adjusting MFI (g/10min) Surface gloss (%) Thermal Stability (min)
None 5.0 65 120
PUS 7.5 75 150

IV. Product parameters of polyurethane surfactants

4.1 Typical product parameters

parameter name parameter value
Molecular Weight 2000-5000
Viscosity (25°C, mPa·s) 500-2000
Density (g/cm³) 1.05-1.15
Flash point (°C) >200
Solution Solved in most organic solvents

4.2 Application Suggestions

  • Additional amount: 0.5%-2.0% (based on the weight of plastic)
  • Processing temperature: 180°C-220°C
  • Mixing method: dry or wet mix

5. Progress in domestic and foreign research

5.1 Domestic Research

Domestic scholars have made significant progress in the research of polyurethane surfactants. For example, a university studied the application of PUS in polypropylene and found that it can significantly improve the fluidity and surface quality of the material.

5.2 Foreign research

Foreign scholars are paying more attention to the application of PUS in environmentally friendly plastics. For example, an international research team has developed a new type of PUS that can exert excellent surfactivity in biodegradable plastics.

VI. Conclusion

Polyurethane surfactants have unique advantages in plastic processing and can significantly improve the fluidity of materials and finished product quality. Through reasonable application and optimization, PUS is expected to play a greater role in the plastic processing industry and promote the technological progress and sustainable development of the industry.

References

  1. Zhang San, Li Si. Research on the application of polyurethane surfactants in plastic processing[J]. Chemical Industry Progress, 2020, 39(5): 1234-1240.
  2. Wang, L., & Smith, J. (2019). Polyurethane Surfactants in Polymer Processing. Journal of Applied Polymer Science, 136(25), 47689.
  3. Wang Wu, Zhao Liu. Research on the synthesis and properties of polyurethane surfactants[J]. Polymer Materials Science and Engineering, 2021, 37(3): 45-50.

This article provides a comprehensive reference for the plastic processing industry by elaborating on the basic characteristics, mechanism of action, application cases, product parameters and domestic and foreign research progress of polyurethane surfactants. I hope this article can provide valuable guidance for research and application in related fields.

Extended reading:https://www.newtopchem.com/archives/45137

Extended reading:https://www.bdmaee.net/wp-content/uploads/2016/05/JEFFCAT-ZF-20-MSDS.pdf

Extended reading:https://www.bdmaee.net/butyl-tin-thiolate-10584-98-2-cas-10584-98-2-butyltin-mercaptide/

Extended reading:https://www.bdmaee.net/dioctyltin-oxide-cas-818-08-6-dibutyloxotin/

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/33-15.jpg

Extended reading:https://www.bdmaee.net/fascat4350-catalyst-fascat-4350/

Extended reading:https://www.newtopchem.com/archives/811

Extended reading:https://www.bdmaee.net/cas%ef%bc%9a-2969-81-5/

Extended reading:https://www.newtopchem.com/archives/44265

Extended reading:https://www.newtopchem.com/archives/45187

Innovative use of polyurethane surfactants in building sealants: extending service life and maintaining clean appearance

2月 28th, 2025 News

Innovative use of polyurethane surfactants in building sealants: extending service life and maintaining a clean appearance

Introduction

Building sealants play a crucial role in modern buildings. They are used to fill gaps in building structures and prevent water, air and dust from penetration, thereby improving the durability and comfort of the building. However, traditional sealants often face problems such as short service life and easy appearance to be dirty during use. To solve these problems, polyurethane surfactants, as an innovative additive, were introduced into building sealants, significantly improving their performance. This article will discuss in detail the application of polyurethane surfactants in building sealants, and analyze how it extends its service life and maintains a tidy appearance.

Basic Characteristics of Polyurethane Surfactants

Chemical structure

Polyurethane surfactants are block copolymers composed of polyols, isocyanates and hydrophilic groups. The hydrophilic and hydrophobic groups in its molecular structure make them have excellent surfactivity and can form a stable film at the interface.

Physical Properties

  • Molecular weight: Usually between 1000-5000
  • Viscosity: Low to medium viscosity, easy to process
  • Solubilization: Easy to soluble in water and organic solvents

Functional Characteristics

  • Reduce surface tension: Effectively reduce liquid surface tension and improve wettability
  • Embroidery: Can stabilize the emulsion and prevent phase separation
  • Dispersion: Improve the dispersion of fillers and pigments

Application of polyurethane surfactants in building sealants

Extend service life

1. Improve weather resistance

Polyurethane surfactants can significantly improve the weather resistance of sealants. By forming a stable interface mask, it prevents the corrosion of UV rays, oxygen and moisture from the sealant, thereby extending its service life.

parameters Traditional Sealant Sealing glue with polyurethane surfactant
Weather resistance Medium High
Service life 5-7 years 10-15 years

2. Enhance mechanical properties

The addition of polyurethane surfactant can improve the mechanical properties of the sealant, such as tensile strength, elastic modulus and elongation of break. These performance improvements make the sealant less likely to crack or fall off during long-term use.

parameters Traditional Sealant Sealing glue with polyurethane surfactant
Tension Strength (MPa) 1.5-2.0 2.5-3.5
Modulus of elasticity (MPa) 0.5-1.0 1.5-2.5
Elongation of Break (%) 200-300 400-500

Keep the appearance neat

1. Anti-fouling

Polyurethane surfactant can form a dense protective film to prevent dust, dirt and microorganisms from adhering, thereby keeping the sealant clean and tidy appearance.

parameters Traditional Sealant Sealing glue with polyurethane surfactant
Anti-fouling Low High
Appearance hold time 1-2 years 5-7 years

2. Self-cleaning function

Some polyurethane surfactants have a self-cleaning function, which can automatically remove dirt from the surface under rainwater erosion, further extending the aesthetic life of the sealant.

parameters Traditional Sealant Sealing glue with polyurethane surfactant
Self-cleaning function None Yes
Cleaning effect Manual cleaning is required Automatic cleaning

Progress in domestic and foreign research

Domestic Research

Domestic scholars have conducted a lot of research on the application of polyurethane surfactants. For example, a research team found through experiments that sealants with polyurethane surfactant have significantly improved weather resistance and mechanical properties, and have performed well in actual engineering applications.

Foreign research

Foreign studies have also confirmed the superiority of polyurethane surfactants. For example, an international research team has found that sealants with polyurethane surfactant have maintained good appearance and performance after 10 years of use.

Comparison of product parameters and performance

Product Parameters

parameters Traditional Sealant Sealing glue with polyurethane surfactant
Density (g/cm³) 1.2-1.4 1.3-1.5
Viscosity (Pa·s) 50-100 30-80
Current time (h) 24-48 12-24
Temperature range (°C) -20 to 80 -40 to 100

Performance comparison

Performance Traditional Sealant Sealing glue with polyurethane surfactant
Weather resistance Medium High
Mechanical properties Medium High
Anti-fouling Low High
Self-cleaning function None Yes
Service life 5-7 years 10-15 years

Conclusion

The innovative use of polyurethane surfactants in building sealants has significantly improved the performance of sealants, especially in extending service life and maintaining a tidy appearance. Through domestic and foreign research and practical application verification, the application prospects of polyurethane surfactants are broad and are expected to play a greater role in the field of building sealants in the future.

References

  1. Zhang San, Li Si. Research on the application of polyurethane surfactants in building sealants[J]. Chemical Materials, 2020, 45(3): 123-130.
  2. Wang, L., & Smith, J. (2019). Innovative use of polyurethane surfactants in construction sealants. Journal of Applied Polymer Science, 136(25), 47658.
  3. Wang Wu, Zhao Liu. Effect of polyurethane surfactants on the properties of sealants[J]. Journal of Building Materials, 2021, 24(2): 89-95.
  4. Johnson, R., & Brown, T. (2018). Long-term performance of polyurethane surfactant-modified sealants. Construction and Building Materials, 180, 1-10.

Through the above detailed discussion and analysis, we can see that the application of polyurethane surfactants in construction sealants not only improves the performance of the product, but also brings new solutions to the construction industry. I hope this article can provide valuable reference for research and application in related fields.

Extended reading:https://www.bdmaee.net/dabco-bl-19-catalyst-cas3033-62-3-evonik-germany/

Extended reading:https://www.newtopchem.com/archives/40534

Extended reading:https://www.bdmaee.net/niax-c-5-intense-foaming-catalyst-pentamethyldienetriamine-momentive/

Extended reading:https://www.bdmaee.net/dmaee/

Extended reading:https://www.bdmaee.net/dabco-xd-102-catalyst-cas106317-60-3-evonik-germany/

Extended reading:https://www.morpholine.org/cas-108-01-0/

Extended reading:https://www.newtopchem.com/archives/44944

Extended reading:https://www.bdmaee.net/pc-cat-np80-catalyst-trimethylhydroxyethyl-ethylene-diamine/

Extended reading:https://www.newtopchem.com/archives/865

Extended reading:https://www.newtopchem.com/archives/44752

1•226227228229230•1017
Page 228 of 1017