Thermoplastic rubber is a material commonly used in glove manufacturing. It helps mitigate the risks of blunt impact, crush injuries, and heavy-object impact during work. This material is typically incorporated into areas of the glove prone to impact—such as the knuckles and the back of the hand—to serve as a cushioning layer and reduce the risk of injury. This article will explore its properties, applications, and pros and cons to help you better understand it.
What is thermoplastic rubber?
Thermoplastic rubber is an alternative to vulcanized rubber. It is faster and less expensive to produce and mold. Unlike conventional rubber, it typically does not contain natural latex.
It is also commonly used in work gloves, where it is incorporated into key areas such as the knuckles, the back of the hand, and the fingers to cushion against impact and pressure, thereby protecting the hands.
Today, there are many types of TPR gloves available on the market:
Shock-absorbing TPR gloves, cut-resistant gloves with TPR impact protection, high-visibility TPR gloves, and insulated TPR gloves.
Properties of Thermoplastic Rubber
The properties of a material can be categorized into three aspects: physical properties, chemical properties, and thermal properties. Physical properties refer to a material’s impact resistance, elasticity, abrasion resistance, and durability. Chemical properties refer to corrosion resistance and oil resistance. Thermal properties primarily refer to how a material behaves under extreme temperatures.
Physical Properties of TPR
- High Elasticity: TPR material boasts exceptional elasticity, with a rebound rate exceeding 85%. This is why TPR is used in impact-resistant gloves. It effectively mitigates injuries to finger joints and the back of the hand caused by blunt force impacts and compression, absorbing shock through flexible compression.
- Anti-Slip: Its water absorption rate is less than 0.5%. TPR helps improve grip in wet conditions, preventing objects from slipping and improving work efficiency.
- Abrasion-Resistant and Durable: TPR is highly durable, extending the lifespan of gloves and reducing damage caused by wear and tear. It allows gloves to maintain superior performance even after repeated bending and contact with sharp or rough objects.
- Adjustable Hardness: The hardness of TPR material can be flexibly adjusted by altering the formulation of the raw materials. Its hardness ranges from Shore 00 to Shore D 85, providing improved protection for fingers and knuckles.
- Easy to Color: During production, the color of TPR can be altered by adjusting the raw material ratios. This ensures visibility for users in dimly lit environments, reducing the risk of hand injuries.
You can select the appropriate gloves based on the performance characteristics described above.
Chemical Properties of TPR
- Corrosion Resistance: Exhibits a certain degree of resistance to certain oils, dilute acids, alcohols, and other chemicals.
- Oil Resistance: Similar to rubber materials, TPR exhibits strong resistance to oils. However, prolonged exposure to mineral oils can still cause swelling. With advancements in modern technology, fluorination modification can help improve resistance in certain formulations.
- Recyclability: TPR is recyclable, contributing to energy conservation and emissions reduction, and can be reheated and reshaped multiple times. However, TPR gloves require professional disassembly before recycling.
Thermal Properties of TPR
- Thermoplasticity: TPR is a thermoplastic material, as opposed to thermosets. This is primarily reflected in its ability to be heated and reshaped multiple times. Generally, thermoset materials cannot be reheated and reshaped after molding.
- Thermal Stability: TPR typically maintains stable performance within the temperature range of -40°C to 120°C. Temperatures above 120°C may cause a decline in material performance. Below -40°C, TPR becomes brittle, and its elasticity and toughness decrease.
- High Melting Point: TPR has a high melting point, typically ranging between 130°C and 200°C. The specific melting point depends on the material formulation used.
Advantages of TPR
Provides Work Protection
TPR impact-resistant gloves are widely available on the market. They are commonly used in construction and heavy machinery operation. These gloves feature TPR patches on vulnerable areas such as the back of the hand and knuckles. They help mitigate injuries caused by blunt force impacts, crushing, and collisions with heavy objects during work. Additionally, TPR is latex-free and less likely to cause allergic reactions.
Helps Reduce Replacement and Injury Costs
TPR offers outstanding durability and abrasion resistance, enabling long-term use in rough and hazardous work environments. Businesses do not need to frequently purchase or replace gloves. This also reduces employee injury rates and lowers the company’s liability for liability costs.
Boosting Work Efficiency
A procurement manager from a construction company told us that employees were constantly worried about hand injuries on the job. We provided them with a customized solution using TPR material. Subsequently, we received a thank-you letter from them, stating that their work efficiency had significantly improved.
Reducing Work Fatigue
In the same thank-you letter, an employee also mentioned, “Using your gloves makes my hands feel much more comfortable than before.” This is due to the elasticity and toughness of TPR material. M-tide gloves feature an ergonomic design, making them even more comfortable to wear.
Eco-Friendly
TPR material can be reshaped after heating. This recycling method is quick and efficient. For companies committed to environmental protection, it is a practical material option.
Disadvantages of TPR
TPR is not a perfect material; it also has its drawbacks.
- Its elasticity is lower compared to natural and synthetic rubbers.
- When subjected to high impact forces over extended periods, the material is prone to deformation.
- At extremely low temperatures, TPR becomes brittle, making it prone to breakage.
- At high temperatures, TPR may soften or deform, rendering it unsuitable for use in high-temperature applications.
- Compared to vulcanized rubber, TPR has lower tensile strength and poorer resistance to aging.
Boundary Conditions: The extent of TPR material’s embrittlement (low-temperature brittleness) and softening (high-temperature deformation/melting) is highly dependent on the formulation composition (e.g., styrene content, impact modifiers/heat-resistant additives) and the thickness of the finished product (thinner parts are more sensitive, while thicker parts exhibit significant thermal lag).
The Use of TPR in Gloves
TPR materials play a crucial role in protective equipment. They help enhance employee safety and comfort. At the same time, they can help businesses achieve greater benefits.
TPR is commonly used in impact-resistant gloves. With its excellent performance, it is an ideal protective material for gloves.
- Its elasticity provides the gloves with shock-absorbing capabilities.
- Its abrasion resistance further extends the gloves’ service life.
- The gloves are ergonomically designed for a comfortable fit.
- Their slip-resistant properties allow the gloves to maintain a firm grip on objects even in wet or damp conditions.
- For most impact-resistant applications, TPR can withstand the typical operating temperatures found in industrial settings.
Industries Where TPR Impact-Resistant Gloves Are Used
- Construction Industry: When operating machinery that generates intense vibrations, such as pile drivers, TPR’s shock-absorbing properties are ideal. TPR also provides abrasion and impact resistance when handling construction materials.
- High-Pressure Washers: Accidental injuries can occur when operating high-pressure washers. TPR work gloves help reduce impact-related risks.
- Metal Stamping: Metal stamping is a hazardous operation. Workers face the risk of being crushed by heavy machinery. TPR impact-resistant gloves can effectively reduce injuries caused by impacts.
- Oil and Gas Extraction: Resource extraction work requires the use of electric drilling tools. In these situations, TPR gloves provide excellent shock absorption.
- Chemical Industry: TPR gloves can be used in chemical production operations to protect against impact injuries and risks in these environments.
- Automotive Industry: TPR gloves are suitable for automotive repair. Automotive repair often requires the use of large machinery and tools, and accidents can occur at any time during operation. Using TPR gloves can effectively reduce injuries caused by such accidents.
- Aerospace: When using heavy assembly tools, or during ground maintenance, transportation, or when exposed to flying debris, TPR gloves can absorb and mitigate injuries to the back of the hand or knuckles, thereby reducing workplace injuries.
Choose M-tide for TPR Gloves
M-tide leverages proven manufacturing processes and extensive customization experience to provide you with the high-quality products. In terms of material research, we meticulously test and formulate TPR materials to ensure optimal product performance. Our gloves feature an ergonomic design to improve user comfort. We use premium raw materials and are dedicated to improving user experience.
We offer customized services. We provide free samples and tailored solutions. Over the years, we have built a strong network of partners. We look forward to working with you!
