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Why TPU been widely added to modify plastics
May 26 , 2023
Compound plastic are plastic materials that have been chemically or physically modified to improve their performance or characteristics. This can be achieved by adding additives such as fillers, stabilizers, plasticizers, or pigments to the plastic resin. The modification can also be done by incorporating a new compound or by blending two or more resins to produce a hybrid material with specific p...
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What will the hardness of TPU influence the products and how to choose it
Jun 02 , 2023
It will leading to deformation or collapse of the product when the TPU material is too soft. It may become brittle and crack when the TPU material is too hard particularly for phone cases, watch bands or sport equipment products that require flexibility and durability. So, it is very important to choose appropriate hardness of TPU material. What will the hardness of TPU influence the products 1.Me...
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What defect caused by the long molding cycle time of soft TPU and how to avoid it
Aug 25 , 2023
The molding cycle time refers to the total time it takes for a complete injection molding cycle, including the stages of filling, cooling, and ejection. The molding cycle time of TPU (Thermoplastic Polyurethane) can have an influence on the properties of the final injection products. A long molding cycle time for soft TPU (Thermoplastic Polyurethane) products can potentially cause various defects....
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Why the lower TPU hardness the lower processing temperature
Sep 08 , 2023
The processing temperature of TPU is influenced by several factors, including its hardness. Generally, lower hardness TPU grades have a lower processing temperature compared to higher hardness grades. This relationship can be attributed to the following reasons: Molecular Structure: The hardness of TPU is determined by the ratio of rigid segments (hard segments) to flexible segments (soft segments...
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The proportion of MDI influence the embrittlement performance of TPU at low temperatures
Nov 03 , 2023
MDI is one of the key components used in the production of TPUs. It serves as the isocyanate component, reacting with polyols to form the polyurethane segments of TPU. The selection of MDI type and the ratio of MDI to polyols can affect the physical properties and performance characteristics of the TPU, including its low-temperature behavior. TPU formulated with a higher proportion of MDI generall...
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why stable MFI is matter for TPU process
Mar 29 , 2024
Stable MFI or MI (Melt Flow Index) is an important factor in TPU (Thermoplastic Polyurethane) processing for several reasons: Process Consistency: MFI represents the flowability of the TPU material during processing. Stable MFI ensures consistent and predictable flow behavior, which is crucial for achieving uniform product quality and avoiding defects or variations in the final product. Ease of Pr...
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What is the key factors impacting the process pressure of TPU extrusion
Jun 17 , 2024
Some of the key factors impacting the process pressure of TPU extrusion are: Material Properties: The viscosity of the TPU material affects the extrusion pressure. Higher viscosity materials require higher pressure to extrude effectively. Factors like TPU grade, molecular weight, and additives can affect the material's melt viscosity and flow characteristics, thus influencing the extrusion pressur...
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What kind of TPU products have specific requirements for slip resistance?
Sep 14 , 2024
What kind of TPU products havespecific requirements for slip resistance? Slip resistance is a desirable characteristic for various TPU (Thermoplastic Polyurethane) products, especially those that come in direct contact with where slipperiness can be a concern. Some examples of TPU products that commonly require slip resistance include Shoe Soles: TPU is widely usedinthe production of shoe sol...
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What will hardness of TPU may change if reducing the melt index of TPU (Thermoplastic Polyurethane)
Dec 06 , 2024
Reducing the melt index of TPU (Thermoplastic Polyurethane) can indeed affect the hardness of the material, but it's not a direct correlation. The melt index refers to the flowability of the molten TPU during the injection molding process. Generally, a lower melt index indicates a higher molecular weight of the TPU, which can result in increased hardness. This is because higher molecular weight TP...
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