Which Slipper Is Better: PVC or EVA?

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In the scorching summer days, flip flops are essential footwear for everyone. In the market, we often come across two common materials: PVC and EVA. So, which material is better for flip flops? This is a question worth discussing.

PVC and EVA are both a kind of plastic material, and the products they make are very common in our life, such as ladies slippers. In many cases, these two materials can also substitute for each other, so many people can’t tell the difference between them. Today, let’s briefly introduce what material EVA and PVC are, and which is better.

What is a PVC slipper?

PVC (Polyvinyl Chloride) slippers are a type of footwear made from PVC material. PVC is a synthetic plastic polymer widely used for various applications. The advantages of PVC slippers lie in their durable material, resistance to wear, a wide range of colors, and the ability to meet diverse consumer needs. Additionally, the manufacturing cost of PVC slippers is relatively low, making them more budget friendly in terms of pricing.

However, PVC material is not breathable, which can make the feet feel hot and damp. Furthermore, PVC material is relatively rigid, making it susceptible to damage when subjected to impacts or friction.

The features of PVC slippers

Chemical Composition: PVC is a white powder with an amorphous structure. It is susceptible to degradation when exposed to prolonged sunlight or temperatures of around 100℃, leading to the release of hydrogen chloride and potential discoloration, which may adversely affect its mechanical properties.

Temperature Range: PVC has a service temperature range typically between 15 degrees and 55 degrees Celsius. It operates most effectively within this temperature range.

Stabilization Requirement: To enhance its stability, PVC often requires the addition of stabilizers when used in various applications.

What is an EVA slipper?

EVA (Ethylene Vinyl Acetate) slippers are a type of footwear made from EVA foam, a elastomeric material known for its lightweight and cushioning properties. EVA is commonly used in the production of various types of footwear, including flip flops, sandals, and slippers.

They have good toughness and elasticity, along with a certain level of waterproof performance. The advantages of EVA slippers lie in their soft and comfortable material, as well as their excellent resistance to wear. Additionally, EVA slippers offer good breathability, effectively preventing the feet from feeling hot and damp.

However, the manufacturing cost of EVA slippers is relatively high, resulting in a higher price point. Moreover, EVA material has relatively lower durability and can deform or become damaged when exposed to high temperatures or strong chemical substances such as acids and bases.

The features of EVA slippers

Shock Absorption: EVA boasts resilience and exceptional tensile strength, making it an excellent material for shock absorption and cushioning.

Waterproof and Sound Insulation: Its closed cell structure ensures that it remains impervious to water, while also providing effective sound insulation.

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Thermal Insulation: EVA’s bubble like structure imparts excellent thermal insulation properties.

Ease of Processing: EVA’s absence of fixed joints makes it easily processable through methods such as hot pressing, cutting, and fitting.

Corrosion Resistance: EVA is naturally antibacterial, non toxic, and odorless, making it resistant to acid and alkali corrosion.So, which material is better for slippers? Actually, there is no clear answer to this question. Because different consumers have different needs for slippers, and different materials also have their own advantages and disadvantages. For example, if you focus on durability and waterproof performance, you can choose PVC slippers; If you focus on comfort and breathability, you can choose EVA slippers.

However,we should know these things below:

EVA is 30% lighter than PVC — This gives the film a better yield and reduces shipping costs. EVA has excellent RF sealing properties — The same RF sealing equipment can be used with PVC and EVA, so there are no extra costs for re tooling.

The PVC Soles have great oil resistance, abrasion resistance, good insulation properties. Plastic sole is normally used by people working closely with water or places where there is rain. Disadvantages: non slip performance is poor, poor texture, poor ventilation.

Durability — EVA soles can last longer than other soles. This way, your EVA sneakers can keep up with you for as long as you need them to.

EVA stands for ethylene vinyl acetate, which is a soft and flexible plastic that’s also very strong. EVA is often used as a safe alternative to PVC. When combined with heat, pressure, and other plastics, EVA becomes closed cell EVA foam.

Both EVA and PVC slippers can develop unpleasant odors over time. EVA slippers, in particular, do not inherently have a smell when initially purchased. However, with prolonged use or exposure to higher temperatures, mold and bacteria can thrive on EVA slippers.When stored in cool or humid environments, these bacteria can multiply rapidly, generating various alcohols and lipids, which are the primary culprits behind the odor in EVA slippers. On the other hand, PVC slippers may emit odors due to a row of small openings located on or around the shoe’s sole. When soapy water or bathwater containing human dandruff, sebum, and other contaminants enter these openings, they can undergo fermentation, resulting in a foul smell over time. Additionally, if residual soapy water or shower gel from bathing is not thoroughly rinsed away, a similar odor may develop.

In addition, considering the specific usage requirements for different occasions, it is important to choose the appropriate material. For instance, in areas with high humidity like bathrooms and kitchens, it is advisable to opt for PVC slippers due to their superior slip resistance. Conversely, in drier environments such as bedrooms and living rooms, EVA slippers might be a better choice as they are softer, more comfortable, and environmentally friendly.

Flip flops HEVA offers:

✔ Using high quality EVA material to make an ultra light sole;

✔ Suitable for many occasions, such as walking and the beach;

✔ Using injection process to make high quality flip flops;

✔ Embossed texture design of this sole improves grip ;

✔ Professional designer team design according to ergonomics;

✔ A variety of colors for your choice or custom colors.

Advantages of TPU Materials:

1. Flexibility: TPU materials offer excellent flexibility and elasticity, allowing them to be molded into various shapes without cracking or breaking.
2. Durability: They have high durability and resistance to wear and tear, making them suitable for long-lasting applications.
3. Chemical Resistance: TPU materials exhibit good resistance against oils, greases, solvents, and many chemicals found in industrial environments.
4. Abrasion Resistance: TPUs are highly resistant to abrasion or frictional forces, making them ideal for applications that require resistance to wear and tear.
5. Weatherproof: These materials have inherent waterproofing capabilities, making them suitable for outdoor applications where exposure to moisture is a concern.
6. Soft-touch Feel: Some types of TPUs possess a soft-touch feel similar to rubber, providing an enhanced user experience in products like grips or handles.

Disadvantages of TPU Materials:

1. Limited Heat Resistance

Compared to some other polymers like nylon or polyethylene terephthalate (PET), TPUs may have lower heat resistance capabilities.

2. Difficulty Recycling

The recycling process for TPUs can be more challenging compared to traditional plastics due to their thermoplastic nature combined with elastomeric properties.

3. Costly Processing Methods

The manufacturing processes involved in creating TPU materials can be more complex and costly than those used for standard plastics.

While there are certain limitations associated with TPU materials such as heat resistance or recycling challenges, their numerous advantages make them widely used across industries ranging from footwear and electronics to automotive components and medical devices. They provide unique properties that allow manufacturers/designers the ability to create durable, flexible, safe, and comfortable products suited to specific requirements.

They are TPU insoles, and they also are heat moldable insoles, click here to know more.

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