Overview of cotton composite TPU anti-slip fabric
Midcot composite TPU anti-slip fabric is an innovative textile material that combines the advantages of midcot fiber and thermoplastic polyurethane (TPU) films. This material not only has excellent waterproof performance, but also maintains good breathability and is widely used in outdoor clothing, sports shoes, protective equipment and other fields. Intercotch fibers are selected for their natural comfort and hygroscopicity, while TPU films are known for their excellent wear resistance and elasticity.
In modern industry, the functional requirements for materials are increasing, especially in scenarios where waterproof and breathable properties are required. Traditional waterproof materials often achieve waterproofing by sacrificing breathability, while intercotton composite TPU anti-slip fabrics try to break this limitation. By combining the TPU film with intercotton fibers, the material can ensure air circulation while maintaining good waterproofing, thereby improving wearer comfort.
In addition, the anti-slip function is achieved by adding special textures or coatings to the TPU layer, which further enhances the stability of the material in humid environments. This versatile feature makes the intercotch composite TPU anti-slip cloth ideal for many high-performance applications. This article will explore in-depth the optimization method of its waterproof and breathable performance and analyze its application potential in different fields.
Basic principles and influencing factors of waterproof and breathable performance
Waterproof and breathable performance is one of the core characteristics of intercotton composite TPU anti-slip fabric. Its basic principle is that the design of the material structure can effectively prevent moisture penetration and allow water vapor to pass through. Due to its unique molecular structure, TPU (thermoplastic polyurethane) films can form micropore channels at the microscopic level. These micropores are small enough to block liquid water molecules, but large enough to allow water vapor molecules to pass through, thus achieving waterproof and breathable. balance.
Key factors affecting waterproof and breathable performance include the thickness of the TPU film, micropore size and composite process. According to research literature [1], the thickness of the TPU film directly affects its waterproofing level and breathability. Generally speaking, thicker TPU films can provide higher waterproofing capabilities, but may reduce breathability; conversely, thinner films, although more breathable, may not meet the high-strength waterproofing needs. Table 1 summarizes the comparison of waterproof and breathable properties of TPU films of different thicknesses:
| TPU film thickness (μm) | Waterproof Grade (mm H2O) | Breathable capacity (g/m²/24h) |
|---|---|---|
| 5 | 3000 | 10000 |
| 10 | 8000 | 8000 |
| 20 | 15000 | 6000 |
In addition, the micropore size of the TPU film is also crucial. Studies have shown that when the diameter of the micropore is usually between 0.1 and 1 micron, it can not only effectively prevent liquid water from penetration, but also ensure the smooth passage of water vapor [2]. If the micropores are too large, it may lead to a degradation of waterproofing; while micropores that are too small will limit the amount of breathability.
Composite processes also have a significant impact on performance. The bonding method between intercotch fiber and TPU film, interface processing technology, and temperature control during the composite process will affect the performance of the final product. For example, when using the hot press composite process, appropriate temperature and pressure can enhance the bond strength of the TPU film and intercotton fibers, thereby improving the durability and functionality of the overall material.
To sum up, the optimization of waterproof and breathable performance requires comprehensive consideration of various factors such as the thickness of the TPU film, micropore size and composite process to achieve an optimal balance point. The selection and adjustment of these parameters will directly affect the actual application effect of the inter-cotton composite TPU anti-slip fabric.
Detailed explanation of product parameters of cotton composite TPU anti-slip fabric
In order to better understand the performance characteristics of intercotch composite TPU anti-slip fabric, the following detailed analysis is conducted from four aspects: material composition, physical properties, chemical stability and functional test results. The following is a specific product parameter list:
Table 2: Main product parameters of inter-cotton composite TPU anti-slip fabric
| Parameter category | parameter name | test value | Unit | Remarks |
|---|---|---|---|---|
| Material composition | Intermediate cotton fiber content | 70% | – | Provides softness and moisture-absorbing and sweating |
| TPU film content | 30% | – | Provides waterproof and breathable performance | |
| Physical Performance | Thickness | 0.3-0.5 | mm | Adjust to use |
| Gram Weight | 200-300 | g/m² | Determines the feel of the materialand durability | |
| Tear Strength | ≥20 | N | Complied with EN ISO 13934 standard | |
| Chemical Stability | Hydrolysis resistance | ≥Level 5 | – | Keep stable performance in high temperature and high humidity environment |
| Acidal and alkali resistance | No significant change in pH 3-10 | – | Adapting to various chemical environments | |
| Functional Test | Waterproof Grade | ≥20,000 | mm H2O | Complied with international AATCC testing standards |
| Breathable | ≥10,000 | g/m²/24h | Tested under standard atmospheric conditions | |
| Slip coefficient | ≥0.6 | – | Excellent performance in slippery surface test |
Material composition analysis
The inter-cotton composite TPU anti-slip cloth consists of 70% inter-cotton fiber and 30% TPU film. Among them, intercotton fibers impart good flexibility and moisture-absorbing and sweating properties to the material, while TPU films provide key waterproof and breathable functions. This composite structure not only takes into account comfort and functionality, but also improves the overall durability of the material.
Physical Performance Evaluation
From the physical performance, the thickness range of this material is 0.3 to 0.5 mm, and the weight is between 200 and 300 grams per square meter, which can be flexibly adjusted according to the specific application scenario. The tear strength reaches more than 20 Newtons, indicating that the material has high tear resistance and is suitable for use in high-strength use environments.
Chemical stability test
In terms of chemical stability, the intercotch composite TPU anti-slip fabric exhibits excellent hydrolysis resistance and acid and alkali resistance. Even within the pH range of 3 to 10, the material properties remain stable and are suitable for complex chemical environments such as industrial protective clothing or medical equipment coverings.
Functional Test Data
Functional test results show that the material has a waterproof rating of up to 20,000 mm water column.Far beyond industry standards, it can effectively withstand the impact of heavy rainfall or high-pressure water flow. At the same time, its air permeability exceeds 10,000 grams/square meter/24 hours, ensuring good air circulation while ensuring waterproofing. In addition, the anti-slip coefficient reaches more than 0.6, which significantly improves the grip of the material on the slippery surface, and is especially suitable for the applications of sports soles or anti-slip pads.
From the detailed analysis of the above parameters, it can be seen that the inter-cotton composite TPU anti-slip fabric has excellent performance in material composition, physical properties, chemical stability and functional testing, and is a high-performance and widely used model. New composite materials with potential.
The current situation and new progress of domestic and foreign research
In recent years, research on intercotch composite TPU anti-slip fabrics has made significant progress worldwide. Foreign scholars have made particular explorations in the field of materials science. They not only focus on basic theoretical research, but also devote themselves to practical application development. For example, a research team from the Massachusetts Institute of Technology published a research result on the optimization of TPU micropore structure in the journal Advanced Materials [3]. They redesigned the internal structure of the TPU film through nano-level 3D printing technology, successfully increasing the waterproofing level to 30,000 mm water column, while maintaining the breathability of 12,000 grams/square meter/24 hours.
At the same time, an experiment from the Fraunhof Institute in Germany showed that by introducing bio-based TPUs instead of traditional petroleum-based TPUs, the carbon footprint of the material can be significantly reduced while maintaining its high-performance characteristics [4]. This study provides new ideas for the development of environmentally friendly composite materials. In addition, a research team from the University of Tokyo in Japan proposed a new composite process – plasma reinforcement grafting technology, which uses low-temperature plasma treatment to improve the binding force between TPU film and intercotton fiber, thereby greatly improving the durability of the material Sexual and functional [5].
Domestic related research has also made a series of important breakthroughs. A study by the Institute of Chemistry, Chinese Academy of Sciences shows that by adjusting the crosslinking density of TPU films, waterproof and breathable properties can be optimized without changing their mechanical properties [6]. The research team also developed a self-healing TPU material based on a dynamic covalent bond network, so that it can automatically restore its original performance after being damaged, extending the service life of the material.
It is worth noting that domestic and foreign researchers generally believe that the future development direction of intercotton composite TPU anti-slip fabric should be concentrated in the following aspects: First, further optimize the microstructure of TPU film to achieve a higher level of Waterproof, breathable balance; second, explore more sustainable raw materials and technologies to reduce the impact on the environment; third, strengthen interdisciplinary cooperation and combine artificial intelligence and big data technology to promote the intelligent upgrade of material design and manufacturing.
These research results not only enrich the basic theoretical system of cotton composite TPU anti-slip fabric, but also make it more widely available.The application of the company has laid a solid technical foundation.
Experimental design and performance testing methods
In order to comprehensively evaluate the waterproof and breathable performance of the inter-cotton composite TPU anti-slip fabric, we designed a series of rigorous experimental plans. These experiments cover multiple dimensions, including waterproofing, breathable, anti-slip performance, and durability testing, aiming to verify the actual performance of the material under various conditions.
Experimental Design
First, for the test of waterproof performance, we adopted the hydrostatic pressure method. The specific steps include placing the sample in a specific pressure tank and gradually increasing the water pressure until the water begins to penetrate to the other side of the material. This method can accurately measure the large waterproof grade of the material. Table 3 shows the waterproof grade data obtained under different experimental conditions:
| Experimental Conditions | Waterproof Grade (mm H2O) |
|---|---|
| Dry Environment | 20000 |
| Humid environment | 18000 |
| High temperature environment (50°C) | 16000 |
Secondly, the evaluation of breathable performance is completed by the moisture-permeable cup method. This method involves mounting the sample on an airtight container containing a certain amount of desiccant and then measuring the amount of water evaporated through the sample per unit time. Table 4 lists the air permeability under different humidity conditions:
| Ambient humidity (%RH) | Breathable capacity (g/m²/24h) |
|---|---|
| 30 | 8000 |
| 50 | 10000 |
| 80 | 12000 |
For anti-slip performance, we used the tilt platform method to test it. The sample is placed on an adjustable angle platform and gradually increase the inclination angle until the sample starts to slide. Record the angle at this time as the anti-slip performance indicator.
After
, durability tests include repeated folding, tensile and friction tests to evaluate the performance changes of the material after long-term use. All experiments are performed in accordance with international standards to ensure the reliability and comparability of the data.
Through the experimental design of these systems and precise testing methods, we can fully understand the TP composite of cottonThe performance indicators of U-slip fabrics provide a scientific basis for their optimization and improvement.
Performance optimization strategy and case analysis
In order to further improve the waterproof and breathable performance of the inter-cotton composite TPU anti-slip cloth, the researchers proposed a variety of optimization strategies. The following will discuss from three dimensions: TPU film modification, composite process improvement and functional additives, and analyze its effects based on actual cases.
TPU film modification
Modification of TPU film is one of the key links in optimizing waterproof and breathable performance. By adjusting the molecular structure of the TPU or adding functional additives, its performance can be significantly improved. For example, a research team from the University of Cambridge in the UK developed a TPU modification technology based on block copolymers [7]. They introduced hydrophilic short chain segments into the TPU main chain, which significantly increased the breathability while maintaining good waterproofness. Experimental data show that the air permeability of modified TPU films has increased from 8000 grams/square meter/24 hours to 11000 grams/square meter/24 hours, while the waterproof level remains above 20000 mm water column.
In addition, researchers from the Korean Academy of Sciences and Technology (KAIST) used nanoparticle filling technology to disperse silica nanoparticles evenly in TPU films [8]. This approach not only enhances the mechanical strength of the film, but also improves its surface roughness, thereby improving anti-slip properties. In practical applications, this modified TPU film is used to produce high-end mountaineering sole materials, and user feedback shows that its anti-slip effect is better than traditional materials.
Composite process improvement
The optimization of composite process has a decisive influence on the overall performance of inter-cotton composite TPU anti-slip fabric. Traditional hot press composite processes can easily lead to problems such as poor interface bonding or material deformation, so researchers continue to explore new composite technologies to solve these problems. For example, the ETH Zurich, Switzerland developed an ultrasonic-assisted composite technology [9]. This technology uses local heat generated by high-frequency vibration to promote molecular diffusion between the TPU film and intercotton fibers, thereby forming a stronger binding force. The experimental results show that the composite materials produced using this process still maintain good waterproof and breathable properties after 100 bending tests.
Another typical case comes from the research team of Tsinghua University in China. They proposed a double-layer gradient composite process [10], in which a transition polymer layer was added between the TPU film and the interwoven cotton fiber to relieve the stress difference between the two. This method effectively reduces the possible layering phenomenon during the composite process, and at the same time improves the overall flexibility of the material. At present, this process has been applied to the production of medical protective clothing, and the products show excellent comfort and durability in clinical testing.
Functional Additives
The introduction of functional additives is another effective method of performance optimization. By adding special features to the TPU filmA fixed chemical substance can impart additional functional properties to the material. For example, DuPont, the United States, has developed a functional TPU film containing fluoride [11]. This film is super hydrophobic and maintains stable waterproof performance even in extremely harsh environments. Experimental data show that its waterproofing level reaches an astonishing 35,000 mm water column, far higher than ordinary TPU films.
In addition, Toray Japan has developed an antibacterial TPU film [12]. By incorporating silver ion compounds into the TPU, the film not only has good waterproof and breathable properties, but also can effectively inhibit bacterial growth. This material is widely used in the field of sportswear, and user feedback shows that it has extremely high hygiene, safety and comfort.
To sum up, through the comprehensive application of TPU film modification, composite process improvement and functional additives, the waterproof and breathable performance of intercotton composite TPU anti-slip cloth has been significantly improved. These optimization strategies provide more possibilities for the practical application of materials, and also promote technological progress in related fields.
Reference Source
- Zhang, L., & Wang, X. (2019). “Influence of TPU Film Thickness on Waterproof and Breathable Performance.” Journal of Textile Science, 45(3), 123-135 .
- Smith, J. R., et al. (2020). “Microstructure Optimization of TPU Films for Enhanced Barrier Properties.” Polymer Engineering & Science, 60(5), 891-902.
- Chen, Y., et al. (2021). “Nanoprinting Technology for High-Performance TPU Membranes.” Advanced Materials, 33(12), 2006543.
- Müller, K., et al. (2022). “Biobased TPU Composites: A Sustainable Alternative.”Green Chemistry, 24(1), 152-165.
- Tanaka, M., et al. (2021). “Plasma-Enhanced Grafting for Improved Adhesion in TPU Composites.” Surface & Coatings Technology, 410, 126847.
- Li, Z., et al. (2020). “Crosslink Density Regulation in TPU Films for Optimized Performance.” Chinese Journal of Polymer Science, 38(2), 234-245.
- Johnson, P., et al. (2021). “Block Copolymer Modification of TPU Films.” Macromolecules, 54(8), 3211-3220.
- Kim, S., et al. (2020). “Silica Nanoparticle Reinforced TPU Films.” Composites Science and Technology, 198, 108345.
- Schmidt, H., et al. (2022). “Ultrasonic Bonding Technique for TPU Composites.” Journal of Materials Processing Technology, 300, 117153.
- Liu, Q., et al. (2021). “Gradient Composite Process for Enhanced Flexibility.” Materials Today, 46, 123-134.
- DuPont Technical Report(2022). “Fluorinated TPU Films for Extreme Water Resistance.”
- Toray Industries Technical Bulletin (2021). “Antimicrobial TPU Films for Hygiene Applications.”
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