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Technical research on improving the flexibility of SBR diving composite fabrics

Abstract

This article aims to explore techniques to improve the flexibility of SBR (Styrene-Butadiene Rubber) diving composite fabrics to adapt to human movements. By analyzing existing material properties, process improvement and application cases, and combining the research results of famous foreign literature, a variety of optimization plans are proposed, and the implementation steps and technical parameters of these plans are elaborated in detail. The article summarizes the future development direction and provides reference for researchers and companies in related fields.

Catalog

Introduction
Overview of SBR Diving Composite Fabrics
Technical principles for improving flexibility
Process improvement and optimization
Application Case Analysis
Future development direction
Conclusion
References

1. Introduction

With the popularity of diving sports and the advancement of technology, the requirements for diving suits are getting higher and higher. As a common rubber material, SBR is widely used in the manufacturing of diving suits due to its excellent physical properties and chemical stability. However, traditional SBR composite fabrics have shortcomings in flexibility and are difficult to fully adapt to the complex movements of the human body. Therefore, how to improve the flexibility of SBR diving composite fabrics has become an urgent problem.

2. Overview of SBR Diving Composite Fabrics

2.1 Material Characteristics

SBR is a synthetic rubber made of copolymerized by butadiene and styrene, which has good wear resistance, oil resistance and anti-aging properties. Its main ingredients are shown in the following table:

Ingredients	Content (%)
Budadiene	70-80
Styrene	20-30
Filler	5-10

2.2 Composite structure

SBR diving composite fabrics are usually composed of a multi-layer structure, including a substrate layer, an adhesive layer and a protective layer. The specific functions of each layer are shown in the following table:

Hydraft	Function Description
Substrate layer	Providing basic support and strength
Adhesive Layer	Enhance the adhesion between the layers
Protection layer	Resist the erosion of the external environment and extend the service life

3. Technical principles for improving flexibility

3.1 Molecular Structure Regulation

By adjusting the crosslink density and branching degree of SBR molecular chains, its flexibility can be effectively improved. Studies have shown that moderate reduction of crosslinking density can make molecular chains more flexible, thereby improving the stretchability and resilience of the material. For example, according to the Journal of Polymer Science, when the crosslink density drops from 10% to 5%, the material’s elongation at break can be increased by about 30%.

3.2 Add plasticizer

Plasticizers can weaken the interaction between molecules, increase the mobility of the molecular chain, and thus improve the flexibility of the material. Commonly used plasticizers include phthalates, aliphatic dibasic acid esters, etc. The following table lists several common plasticizers and their performance comparisons:

Plasticizer Type	Features
Phithalates	The plasticization effect is significant, but the environmental protection is poor
Aliphatic dibasic acid esters	Good environmental protection, but slightly poor plasticization effect
Epoxy plasticizers	High stability, suitable for high temperature environments

3.3 Application of Nanofillers

Nanofillers such as nanosilicon dioxide, nanocarbon tubes, etc. can significantly improve the mechanical properties and flexibility of SBR. Studies have shown that adding nanofillers in moderation can greatly improve the flexibility of the material without sacrificing strength. For example, a paper in Advanced Materials pointed out that adding 1 wt% nanosilicon dioxide can increase the tensile strength of SBR by 20%, while increasing the elongation of break by 15%.

4. Process improvement and optimization

4.1 Extrusion forming process

Extrusion molding is a key link in the production of SBR composite fabrics. By optimizing parameters such as extrusion temperature, speed and pressure, the flexibility of the material can be effectively improved. The specific parameter settings are shown in the following table:

parameters	Best value range	Influence Description
Extrusion temperature	120-140°C	The low temperature leads to poor fluidity, and too high is easy to degrade
Extrusion speed	5-10 m/min	The speed is too fast and the uniformity is affected, and too slow will cause inefficiency
Extrusion Pressure	10-20 MPa	Insufficient pressure will lead to hollows, and excessively large ones will easily break

4.2 Heat treatment process

Heat treatment can further improve the flexibility of SBR composite fabrics. By controlling the heating temperature and time, the internal stress of the material can be released, thereby improving its flexibility and comfort. The specific process parameters are shown in the following table:

parameters	Best value range	Influence Description
Heating temperature	100-120°C	The effect is not obvious when the temperature is too low, and it is easy to age if it is too high.
Heating time	10-20 min	The time is too short and cannot fully release stress, and it will be wasted if it is too long.

4.3 Surface treatment technology

Surface treatment enhances the softness and smoothness of SBR composite fabrics. Commonly used surface treatment methods include coating, impregnation and corona treatment. The following table lists several common surface treatment methods and their advantages and disadvantages:

Method	Pros	Disadvantages
Coating	Excellent effect and low cost	The coating is easy to fall off and has poor durability
Impregnation	Even processing and strong durability	Complex process and high cost
Corona treatment	It does not change the essence of the material and is environmentally friendly	For the deviceHigh requirements, large one-time investment

5. Application case analysis

5.1 Case of internationally renowned brands

The internationally renowned diving brand AquaTech uses optimized SBR composite fabric in its new diving suit. By introducing nanofillers and plasticizers, this diving suit not only has excellent flexibility, but also greatly improves the wearer’s comfort. User feedback shows that this diving suit performs particularly well during deep-sea operations and can perfectly adapt to various complex body movements.

5.2 Cases of domestic innovative enterprises

A domestic innovative enterprise has developed a new SBR composite fabric. By optimizing the extrusion molding process and heat treatment process, the flexibility of the material has been successfully improved by 30%. This fabric has been applied to multiple professional diving equipment brands and has received good market response. Especially in the field of extreme sports, the performance of this fabric has been widely recognized.

6. Future development direction

6.1 Research and development of new materials

In the future, researchers should continue to explore new materials, such as bio-based rubber, smart materials, etc., to further improve the flexibility and functionality of SBR composite fabrics. For example, bio-based rubber has better environmental protection and biocompatibility and is expected to become the ideal material for the next generation of diving suits.

6.2 Process Innovation

With the development of intelligent manufacturing technology, more advanced manufacturing processes can be introduced in the future, such as 3D printing, laser cutting, etc., to achieve more accurate material forming and more efficient production processes. This will help further enhance the flexibility and adaptability of SBR composite fabrics.

6.3 Intelligent design

Intelligent design will become an important trend in the future. By introducing technical means such as sensors and data acquisition systems, the performance status of the diving suit can be monitored in real time and dynamically adjusted according to actual needs, thereby providing a more personalized user experience.

7. Conclusion

To sum up, the technical research on improving the flexibility of SBR diving composite fabrics is of great significance. Through various means such as molecular structure regulation, the addition of plasticizers and nanofillers, and the optimization of production processes, the flexibility and adaptability of materials can be effectively improved. In the future, with the continuous emergence of new materials and new processes, SBR composite fabrics will play a greater role in the diving field, providing divers with a safer and more comfortable experience.