TPU Material for Injection Molding
TPU Injection Molding
Details
Details:
Model
Material
Brand
Origin
Application
Booling-Injection-13
P20, 718, S136, 2738 etc
Booling
China
Automotive parts, industrial parts, medical parts, household
TPU injection molding combines the advantages of raw materials with efficient processes, producing products with excellent hydrolysis resistance. Its good transparency and aesthetics make it an ideal process widely used in fields such as shoe materials, sports equipment, medical devices, umbrellas, etc.
Advantages of TPU Injection Molding：
- Wear Resistant
- Chemical Resistance
- High Strength
- Hydrolysis Resistance
- Fungus Resistant
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TPU injection molding is a method of injecting thermoplastic polyurethane raw materials into molds, cooling, and solidifying them to form parts, during this process. TPU injection molding can produce high-precision and high-quality components, suitable for producing various precision parts, and can adapt well to market demand.
Characteristics of TPU Injection Molding Material
TPU injection molding materials have many superior characteristics, including:
- High Mechanical Strength: TPU materials used for injection molding have significant load-bearing capacity, impact resistance, cold resistance, and shock absorption performance, with strong mechanical and physical properties.
- Durability: TPU material has strong resistance to oil, water, and mold.
- Flexible Processing Methods: TPU injection molding materials can be made into various shapes of products through injection, extrusion, rolling, and other methods.
- High Wear Resistance: not easily worn under strong friction and wear.
- Chemical Resistance: It has a good tolerance to most chemicals.
- Able to Withstand Low Temperatures: TPU injection molding materials can still maintain good elasticity and flexibility in an environment of -35 ℃.
- Heat Resistance: TPU can still maintain its good mechanical properties at high temperatures of 90 ℃.
- Wide Application: TPU injection molded products are widely used in fields such as medical equipment, shoe soles, bicycle supplies, electronic casings, etc., with a very wide range of applications.
- Good Recyclability of materials: It is a non-toxic, odorless, tasteless, heavy metal-free, halogen-free, recyclable material that meets environmental protection requirements and the concept of sustainable development.
Advantages of the TPU Injection Molding Process
TPU injection molding generally includes several steps, including plasticization and melting of raw materials, manufacturing of preforms, inflation, cooling, and solidification. The advantages of this injection molding process are prominent.
- During the TPU injection molding production process, the waste generated, such as escaping burrs, extruded waste glue, and the final waste products (including non-conforming products), can be directly recycled and reused, with almost no wasted materials.
- The TPU injection molding process can be processed using conventional molding machines and molding processes, such as injection molding, blow molding, compression molding, extrusion molding, transfer molding, etc.
- The emergence of TPU injection molding technology has opened up new avenues and manufacturing processes for the rubber manufacturing industry, expanding the advantages and application fields of rubber products.
- The raw materials can be molded and vulcanized using an extruder, which has fast extrusion speed and short vulcanization time, accelerating the speed of entering formal molding and improving manufacturing efficiency.
- TPU, as a thermoplastic elastomer material, can be vulcanized using a rubber injection molding machine, which can greatly shorten the time from about 20 minutes to less than 1 minute.
- The formula for TPU injection molding is greatly simplified, with high self-reinforcement, thereby greatly reducing the influence of additives on polymers and improving their quality and performance.
- The products produced in TPU injection molding can be reused after simple processing and regeneration, which reduces environmental pollution, expands the sources of resource regeneration, and improves usability.
- During the injection molding process of TPU, unlike silicone rubber materials, TPU materials do not require vulcanization and can save energy. Taking the production energy consumption of high-pressure hoses as an example: rubber is 188MJ/kg, and TPE is 144MJ/kg, which can save energy by more than 25%.
The Wide Application of TPU
TPU injection molded products are widely used in the field of plastic manufacturing, mainly including:
- Thin Film
The combination of the environmental performance of TPU material and the superiority of injection molding has been favored and welcomed by a large number of manufacturers. At present, TPU materials are gradually being able to replace PVC in production. The film produced from TPU material can not only adhere to various fabrics but also produce products with clear contours and stable dimensions using the vacuum thermoforming method. With the continuous improvement of environmental awareness among manufacturers and consumers, TPU materials have gradually replaced some traditional materials and have become increasingly widely used, such as transparent underwear, shoe upper lining, transparent shoulder straps, thermal underwear, elastic bands, and medical breathable tapes. In these fields, the growth rate of TPU injection molding is relatively fast.
- Wires
The products produced by TPU injection molding technology provide characteristics of wear resistance, tear resistance, and bending resistance, and extreme temperature resistance is the key to cable performance. Some advanced cables, such as control cables and power cables, have very high requirements for insulation and durability. In this case, TPU materials are needed to manufacture coating materials to protect complex cable designs, extend cable life, and increase safety.
- Shoe Materials
TPU injection molding is mainly used for shoe materials due to its excellent elasticity and wear resistance. TPU-containing footwear products have much better comfort than ordinary footwear products, so they are widely used in high-end footwear products, especially some sports shoes and casual shoes.
- Hose
TPU injection molded hoses have good elasticity, toughness, and softness, as well as impact strength, good tensile strength, and high and low-temperature resistance. They are widely used in gas or oil hoses for mechanical equipment such as automobiles, airplanes, machine tools, motorcycles, etc.
- Roller
Polyurethane elastomer (TPU) has been widely used in the production of rollers due to its excellent oil and acid resistance, high wear resistance, outstanding mechanical strength, outstanding compression resistance, and so on. The main types of rollers include industrial rollers, medical equipment wheels, sports equipment wheels, household rollers, and toy wheels.
- Plastic Modification
TPU material can be used for plasticizing PA and ABS, enhancing the processing and performance of plastics.
- Ink
TPU ink has outstanding advantages, such as high gloss, low viscosity, high fluidity, excellent adhesion, excellent abrasion resistance, good flexibility, weather resistance, resistance to any sun exposure, including UV radiation, aging resistance, and excellent toughness and durability in various application fields and use environments. The ink made of aromatic and aliphatic TPU can be used in various climates, even in more extreme environmental conditions. The product has stable and outstanding performance and is chosen by a large number of manufacturers. TPU ink has a smooth and shiny appearance, excellent performance, strong adhesion, good light blocking and alcohol resistance, and is mainly suitable for surface decoration of plastics such as TPU, including some car leather chairs, mobile phones, umbrellas, raincoats, laptops, inflatable entertainment TPU products, shoes, high-end leather goods, sofas, handbags, etc.
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