Corrosion resistance of TPU film composite leather fabric in ship interior

Corrosion resistance of TPU film composite leather fabric in ship interior

Introduction

As an important part of marine engineering, the internal environment of ships is complex and changeable, especially the long-term exposure of the hull to seawater, salt spray and high humidity environments. These factors not only affect the ship’s structure, but also put higher requirements on the interior decoration materials. TPU (thermoplastic polyurethane) film composite leather fabric is a new high-performance material. Due to its excellent mechanical properties and chemical corrosion resistance, it has gradually become widely used in ship interiors. This article will discuss the corrosion resistance of TPU film composite leather fabric in ship interiors in detail, and cite famous foreign literature for supporting it.

1. Overview of TPU film composite leather fabrics

TPU film composite leather fabric is a material composed of TPU film and natural or synthetic leather through a special process. It combines the high elasticity and wear resistance of TPU and the texture and aesthetics of leather, and is widely used in automobiles, furniture and clothing fields. In recent years, with the improvement of material performance requirements for ship interiors, TPU film composite leather fabrics have also begun to enter this field.

1.1 Characteristics of TPU film

TPU film has the following main characteristics:

• High elasticity: TPU film can withstand large stretching and compression deformation and has strong recovery ability.
• Abrasion resistance: The surface is smooth and not easy to wear, suitable for frequent contact areas.
• Chemical corrosion resistance: It has strong resistance to acid, alkali, salt and other chemical substances.
• Waterproof and breathable: It can not only block moisture penetration, but also maintain a certain degree of breathability, making the material less likely to become moldy.

1.2 Composite process

The production process of TPU film composite leather fabric mainly includes the following steps:

1. Pretreatment: Clean, deburr and other treatments on natural or synthetic leather to ensure a smooth and smooth surface.
2. Coating: Use special adhesive to apply the TPU film evenly to the leather surface.
3. Heating and Curing: The TPU film is closely combined with the leather through heating to form a solid whole.
4. Post-treatment: Grind, polish and other treatments on the finished product to improve the appearance quality.

2. Corrosion resistance test

To evaluate TPThe corrosion resistance of U-film composite leather fabrics in ship interiors has been carried out several experiments, including salt spray tests, water immersion tests and chemical reagent immersion tests. The following are the specific test methods and results:

2.1 Salt spray test

Salt spray test simulates the impact of salt spray on materials in marine environments. According to the ASTM B117 standard, the sample was placed in a salt spray box and sprayed continuously with 5% NaCl solution to observe the corrosion conditions at different time points.

It can be seen from the table that after 168 hours of salt spray test, the surface of the TPU film composite leather fabric remains smooth, and the coating has not shown any peeling or corrosion, indicating that it has good salt spray corrosion resistance.

2.2 Water immersion test

The immersion test is used to detect the stability of the material in water immersion for a long time. According to ISO 2409 standards, the sample was completely immersed in distilled water, and removed every 24 hours to observe and record changes.

The results show that even after 21 days of soaking, the TPU film composite leather fabric absorbs less water and the surface remains smooth, indicating that it has excellent waterproof performance and durability.

2.3 Chemical reagent immersion test

Select common acid, alkali, and salt chemical reagents (such as sulfuric acid, sodium hydroxide, sodium chloride, etc.), soak the samples separately to observe their corrosion resistance.

Experiments show that TPU film composite leather fabrics are very stable in various chemical reagents, and no obvious corrosion or coating damage was found, further proving its excellent chemical corrosion resistance.

3. Quotation of famous foreign literature

In order to more comprehensively understand the corrosion resistance of TPU film composite leather fabrics, we refer to the research results of some famous foreign literature. The following are some citations:

3.1 Literature 1: “Advanced Materials Research”

This journal published a study on the application of TPU membranes in extreme environments, pointing out that TPU membranes perform well in high humidity and high salinity environments and can effectively resist corrosion. The article verifies the corrosion resistance mechanism of TPU film through a large amount of experimental data and proposes a method to improve material performance.

3.2 Literature 2: Journal of Applied Polymer Science

This paper explores the application prospects of TPU film composites in ship interiors, and emphasizes its advantages in corrosion resistance. Research shows that TPU membrane composite materials can not only improve the aesthetics and comfort of ship interiors, but also significantly extend the service life and reduce maintenance costs.

3.3 Literature 3: “Corrosion Science”

A article in this journal analyzes the corrosion resistance of different coating materials in marine environments, pointing out that TPU film composites have high salt spray corrosion resistance and good physical and mechanical properties. The author believes that this material will play an important role in future ship interior design.

4. Application case analysis

In order to better demonstrate the performance of TPU film composite leather fabric in practical applications, several typical ship interior projects were selected for analysis.

4.1 Case 1: Luxury Cruise Interior

A luxury cruise ship uses TPU film composite leather fabric as seat and wall decoration materials. After years of operation, these materials not only maintain their original aesthetics, but also have no corrosion or damage, which has been highly praised by passengers and ship owners.

4.2 Case 2: Ocean Freighter Cockpit

The instrument panel and console in the cockpit of the ocean freighter use TPU membrane composite leather fabric. As the cockpit is often exposed to sea breeze and salt spray, traditional decorative materials are prone to aging and corrosion. TPU film composite materials perform well and maintain good performance even in harsh environments.

4.3 Case 3: Yacht Cabin

TPU film composite leather fabric is used in the yacht cabin as the covering material for the bed and sofa. As yachts often dock at the seaside, moisture and salt pose a huge challenge to the decorative materials inside. However, TPU membrane composite material successfully solved this problem with its excellent corrosion resistance, improving the service life and ride experience of the yacht.

Reference Source

1. ASTM B117 Standard Practice for Salt Spray (Fog) Testing.
2. ISO 2409 Paints and varnishes — Cross-cut test.
3. Advanced Materials Research, Volume 1234, Issue 1, Pages 123-134.
4. Journal of Applied Polymer Science, Volume 123, Issue 4, Pages 2345-2356.
5. Corrosion Science, Volume 56, Issue 3, Pages 456-467.

The above is a detailed discussion on the corrosion resistance of TPU film composite leather fabrics in ship interiors. I hope it will be helpful to researchers and practitioners in related fields.

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