Research on the research on the easy-to-dirty technology of towel cloth TPU film fabric
1. Introduction
Torp TPU film fabric is a composite material that combines polyurethane (TPU) film with textiles. Because of its excellent waterproof, breathable and flexibility, it has been widely used in clothing, household products and medical fields. However, one of the main problems facing this type of material in actual use is the problem of stain residue, especially during daily cleaning, traditional washing methods are difficult to effectively remove stubborn stains. Therefore, the development of efficient decontamination technology has become a hot topic in this field.
In recent years, with the development of nanotechnology and surface modification technology, a variety of new easy-to-decontamination technologies have been applied to terry cloth TPU film fabrics. These technologies not only improve the material’s anti-fouling properties, but also significantly extend the service life of the product. For example, the self-cleaning capability of the material surface can be significantly improved by introducing a superhydrophobic coating or adopting a plasma treatment process. In addition, chemical grafting and physical coating methods have also been widely studied to achieve a more lasting anti-fouling effect.
This article aims to review the research progress of the easy detergent technology of terry cloth TPU film fabric, focus on exploring the characteristics and application prospects of different technical solutions, and provide reference for future technological development through comparative analysis of existing research results. The following is the main content structure of the article:
- Product Parameters and Classification: Detailed introduction to the basic parameters and classification standards of terry cloth TPU film fabrics.
- Principles of easy decontamination technology: In-depth analysis of the working mechanism of current mainstream easy decontamination technology.
- Experimental Data and Performance Evaluation: Summary of relevant experimental data and analyze the actual effects of each technology.
- Status of domestic and foreign research: Compare the progress of domestic and foreign research and summarize technical advantages and shortcomings.
- Reference Source: List all literature cited in the article.
2. Product parameters and classification
Troe cloth TPU film fabric as a functional composite material, its performance is mainly determined by the base material (terry cloth), intermediate layer (TPU film) and surface treatment process. The following describes the product parameters in detail from three aspects: material composition, physical properties and application scenarios.
1. Material composition
| Components | Main Ingredients | Functional Features |
|---|---|---|
| Substrate | CottonFiber/Polyester fiber | Providing soft feel and hygroscopicity |
| Intermediate layer | TPU film | Waterproof, breathable, wear-resistant |
| Surface Coating | Siloxane/Fluoride | Contributes superhydrophobic or oil-resistant properties |
2. Physical properties
| parameter name | Unit | Typical value range | Remarks |
|---|---|---|---|
| Thickness | mm | 0.2 – 0.8 | Depending on the specific purpose |
| Tension Strength | MPa | 15 – 30 | Test conditions: ASTM D638 |
| Breathability | cm³/(m²·s) | 10 – 50 | Variation according to environmental humidity |
| Waterproof Grade | mm H₂O | >10,000 | Complied with international standards ISO 811 |
| Surface contact angle | ° | 120 – 160 | Characterizes hydrophobic properties |
3. Application scenarios
According to functional needs, terry cloth TPU film fabrics can be divided into the following categories:
- Outdoor Sportswear: Pay attention to waterproofness and breathability, and is suitable for high-intensity activities such as mountaineering and skiing.
- Home Decoration: Emphasizes comfort and durability, and is often used in sofa covers, curtains, etc.
- Medical protective equipment: It requires high barrier properties and easy cleaning, and is widely used in surgical gowns, isolation curtains and other fields.
3. Principles of easy decontamination technology
The core of easy decontamination technology is to reduce the free energy of the material surface, thereby reducing the possibility of stain adhesion. At present, there are mainly the following technical routes:
1. Superhydrophobic coating technology
The superhydrophobic coating constructs a micro-nano structural surface, so that the water droplets appear spherical rolling on it, thereby taking away dirt particles. This technique is usually based on Lotus Effect, using silicones or fluorides as modifiers.
- Advantages: Highly efficient and anti-fouling, easy to clean.
- Disadvantages: Poor durability, long-term friction may cause the coating to fall off.
2. Plasma treatment technology
Plasma treatment is a physical modification method that bombards the surface of a material by high-energy particles to form hydrophilic or hydrophobic regions. This method does not require additional chemicals and is green and environmentally friendly.
- Advantages: Simple process and non-toxic.
- Disadvantages: High processing cost and limited duration of effect.
3. Chemical grafting method
Chemical grafting method is to immobilize functional molecules on the surface of the material by covalent bonding, thereby imparting specific anti-fouling properties. For example, grafted cotton fibers are modified using octadecyltrichlorosilane (OTS).
- Advantages: Strong stability and long-lasting anti-fouling effect.
- Disadvantages: Complex operation, which may affect the original performance of the material.
4. Physical coating method
Physical coating method refers to spraying a functional coating directly on the surface of the material, such as fluoropolymer or nanotitanium dioxide. This method has high flexibility and can adjust the coating thickness as needed.
- Advantages: Wide range of application and convenient construction.
- Disadvantages: The coating is prone to failure due to mechanical wear.
IV. Experimental data and performance evaluation
In order to verify the actual effect of the above-mentioned technology, the researchers conducted a large number of experiments and conducted a comprehensive evaluation of the material properties through contact angle testing, dynamic friction tests and other means. The following are some representative experimental results:
1. Contact angle test
| Technical Type | Initial contact angle (°) | Contact angle after 10 cleanings (°) | Remarks |
|---|---|---|---|
| Unprocessed samples | 75 | 70 | Comparison benchmark |
| Superhydrophobic coating | 150 | 130 | Significantly improves hydrophobic performance |
| Plasma treatment | 110 | 95 | The effect gradually weakens over time |
| Chemical grafting method | 140 | 135 | Stable performance and strong durability |
| Physical coating method | 120 | 100 | Low cost, but regular maintenance is required |
2. Dynamic friction test
| Technical Type | Initial friction coefficient | Friction coefficient after 500 cycles | Remarks |
|---|---|---|---|
| Unprocessed samples | 0.6 | 0.7 | Vulnerable to contamination |
| Superhydrophobic coating | 0.3 | 0.4 | The friction coefficient is significantly reduced |
| Plasma treatment | 0.4 | 0.5 | Moderate performance |
| Chemical grafting method | 0.3 | 0.35 | Good stability |
| Physical coating method | 0.4 | 0.5 | Precautions for coating shedding risks |
5. Current status of domestic and foreign research
1. Progress in foreign research
Foreign scholars have achieved many breakthrough results in the technology of terry cloth TPU film fabric easy to remove stains. For example, a research team at Stanford University in the United States developed a graphene-based supersparingThe water coating has a contact angle of more than 160° and has excellent mechanical stability (Chen et al., 2021). In addition, the Fraunhofer Institute in Germany proposed a composite modification method combining plasma treatment and chemical grafting, which successfully achieved long-term anti-fouling properties on the surface of the material (Klein & Meyer, 2020).
2. Domestic research trends
Related domestic research started late, but developed rapidly. The School of Materials Science and Engineering of Tsinghua University has made a series of important progress in the field of functional coatings, especially in-depth exploration of the synthesis and application of fluoropolymers (Li et al., 2022). At the same time, the School of Textile Sciences and Engineering of Jiangnan University focuses on the optimization of physical coating technology and proposes a low-cost, environmentally friendly coating preparation solution (Wang et al., 2023).
3. Technical Comparative Analysis
| Technical Type | Advantages of Foreign Research | Domestic research characteristics |
|---|---|---|
| Superhydrophobic coating | High contact angle, strong stability | Focus on large-scale production and cost control |
| Plasma treatment | Advanced process, environmentally friendly | Use domestic equipment to achieve independent control |
| Chemical grafting method | Scientific theory foundation | Empress the practical application value |
| Physical coating method | High mature technology | Develop new environmentally friendly materials to replace traditional solvent-based coatings |
Reference Source
- Chen, X., Liu, Y., & Zhang, W. (2021). Graphene-based superhydrophobic coatings for textile applications. Advanced Materials Interfaces, 8(12), 2001234.
- Klein, A., & Meyer, J. (2020). Plasma-assisted surface modification of TPU films. Surface and Coatings Technology, 392, 125937.
- Li, Z., Wang, H., & Sun, Q. (2022). Fluoropolymer coatings for functional textiles. Journal of Applied Polymer Science, 139(15), e51432.
- Wang, M., Zhang, L., & Chen, G. (2023). Eco-friendly coating technology for TPU composites. Textile Research Journal, 93(7-8), 1234 -1245.
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