Discussion on the preparation technology of high-performance intercotch composite TPU anti-slip fabric

Discussion on the preparation process of high-performance intercotch composite TPU anti-slip fabric

1. Introduction

High-performance intercotch composite TPU anti-slip fabric is a new functional textile material that combines thermoplastic polyurethane (TPU) and cotton fibers. It is widely used in sportswear, shoes, household products and other fields. Its unique structural design makes it have excellent wear resistance, slip resistance and comfort, while meeting the requirements of environmental protection and sustainable development. In recent years, with the growth of global demand for functional textiles, the research and development and production of this material have become a hot topic in the industry. This article will discuss the material selection, preparation process, performance optimization and application prospects, and will deeply analyze the preparation technology of the material by citing famous foreign literature and related data.

2. Basic concepts and product parameters of high-performance intercotch composite TPU anti-slip fabric

The high-performance intercotch composite TPU anti-slip fabric consists of two parts: one is the cotton fiber layer as the base material, and the other is the TPU film or coating covering the surface or embedded inside. This composite structure not only retains the natural breathability and soft touch of cotton fibers, but also imparts excellent mechanical properties and functionality to the material.

(I) Product Parameters Table

parameter name	Unit	Typical value range	Remarks
Thickness	mm	0.2-1.5	Can be adjusted according to the purpose
Density	g/cm³	0.8-1.2	Depending on the TPU content
Tension Strength	MPa	15-30	TPU is the main contributor
Elongation of Break	%	300-600	High elastic properties
Slip coefficient	–	≥0.8	Surface treatment key
Abrasion resistance	Times	>50,000	The test condition is ASTM D3884
Breathability	cm³/cm²/min	500-1000	Cotton fiber provides major contributions
Anti-bacterial properties	%	≥99	Add antibacterial agent can be achieved
Environmental Certification	–	OEKO-TEX Standard 100	Complied with international standards

(II) Functional Features

Slip resistance: Through TPU surface modification or the addition of special particles, the friction coefficient is significantly improved.
Abrasion Resistance: The polymer chain structure of TPU imparts excellent wear resistance to the material.
Breathability: The cotton fiber layer ensures good air circulation and improves wear comfort.
Environmental protection: Use biodegradable TPU and organic cotton raw materials to reduce environmental burden.

3. Preparation process of high-performance intercotch composite TPU anti-slip fabric

The preparation of high-performance intercotch composite TPU anti-slip fabric involves multiple steps, including raw material selection, pretreatment, composite molding and post-tissue finishing. The following details the key technical points of each stage.

(I) Raw material selection

TPU selection
- TPUs have many types, such as aliphatic TPUs and aromatic TPUs. Among them, aliphatic TPUs are more common in outdoor applications due to their excellent yellowing resistance (Smith et al., 2018).
- Select hardness grade (Shaote A 70-95) and melting point range (180-220°C) according to the specific requirements.
Selecting cotton fiber
- Long lint cotton or degummed recycled cotton is preferred to enhance bonding between fibers (Johnson & Lee, 2020).
- For products with high environmental protection requirements, organic cotton or recycled cotton can be used.

(II) Pretreatment process

Cotton fiber surface activation/p>
- Add to increase the surface roughness of cotton fibers using plasma treatment or chemical etching methods, thereby improving the bonding properties to the TPU (Brown et al., 2019).
- Recommended process parameters: power 40W, time 30s, gas is oxygen or argon.
TPU melt modification
- Add tougheners or antioxidants during TPU melting to improve their overall performance.
- The addition ratio is usually 0.5%-2%, and the specific value needs to be determined based on experiments.

(III) Composite forming process

Extrusion coating
- After heating the TPU particles to the molten state, they are uniformly coated on the surface of the cotton fiber layer by an extruder.
- Process parameters: extrusion temperature 190-210°C, linear speed 5-10m/min.
Hot pressing compounding method
- The TPU film and cotton fibers are laminated together using high-temperature and high-pressure equipment.
- Recommended conditions: Temperature 180-200°C, pressure 5-10MPa, time 30-60s.
Blending Spinning Method
- The TPU and cotton fiber are mixed and spinned to form an integrated composite structure.
- This method is suitable for high-end customized products, but it is costly.

(IV) Post-organization process

Surface treatment
- Using silane coupling agent or nanoparticles to modify the TPU surface to further improve the anti-slip performance.
- Recommended formula: KH550 (3wt%) + SiO₂ (1wt%).
Anti-bacterial finishing
- Add silver ion or zinc ion antibacterial agents to impart a long-lasting antibacterial effect to the material.
- Please pay attention to controlling the dosage to avoid affecting other performance.
Dyeing and printing
- Use environmentally friendly dyesPerform dyeing to ensure bright colors and good fastness.
- Printing patterns can be customized according to customer needs.

IV. Performance optimization strategy

In order to further improve the comprehensive performance of high-performance intercotch composite TPU anti-slip fabric, we can start from the following aspects:

(I) Microstructure Control

The mechanical properties and functionality of the material are optimized by adjusting the ratio and distribution of the TPU to the cotton fiber. For example, the use of a multi-layer composite structure (such as “TPU-cotton-TPU”) can not only enhance the anti-slip effect but also maintain good breathability (Davis & Chen, 2021).

(Bi) Additive Development

Develop new functional additives, such as self-healing TPUs, conductive TPUs, etc., and expand the application areas of materials. In addition, the introduction of bio-based TPUs instead of traditional petroleum-based TPUs helps reduce carbon emissions (Miller et al., 2022).

(III) Intelligent design

In combination with IoT technology, an intelligent anti-slip cloth with sensing functions is developed. For example, flexible sensors are embedded in the TPU layer to monitor pressure distribution and sliding trends in real time (Wilson & Thompson, 2023).

V. Application areas and development prospects

High-performance intercotch composite TPU anti-slip fabric has shown broad application prospects in many fields due to its unique advantages.

(I) Sportswear

Used to make yoga mats, running soles, etc., providing excellent anti-slip protection.
Data shows that sports shoes using this material have a friction coefficient of 20%-30% higher than that of ordinary shoes (Anderson et al., 2020).

(II) Household Products

Make carpet backings, tablecloths, etc., both beautiful and practical.
Extremely suitable for use by the elderly and children, effectively preventing fall accidents.

(III) Industrial Protection

Applied in gloves, work clothes and other fields to protect workers from slipping and falling injuries.
Compare EU CE certification standards and meet strict safety requirements.

VI. References

Smith, J., & Davis, R. (2018). Advanceds in Thermoplastic Polyurethane Materials. Journal of Polymer Science, 56(3), 215-230.
Johnson, M., & Lee, H. (2020). Sustainable Cotton Fibers for Textile Applications. Textile Research Journal, 90(12), 1456-1468.
Brown, A., et al. (2019). Plasma Treatment of Natural Fibers for Improved Adhesion. Surface and Coatings Technology, 367, 124-132.
Davis, R., & Chen, W. (2021). Multi-Layer Composite Structures for Enhanced Performance. Composites Science and Technology, 203, 108625.
Miller, P., et al. (2022). Bio-Based Thermoplastic Polyurethanes: Current Status and Future Directions. Green Chemistry, 24(5), 2015-2030.
Wilson, K., & Thompson, L. (2023). Smart Textiles with Sensing Capabilities. Advanced Functional Materials, 33(10), 2208156.

The above content introduces in detail the preparation process and related technical points of high-performance intercotch composite TPU anti-slip fabric, and hopes to provide reference for research and practice in related fields.

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