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How to choose plastic material for your products, rubber or TPU
Jul 15 , 2022
TPE is categoried as thermoplastic rubber which covers a wide range of polymers including thermoplastic polyurethane (TPU), crosslinked thermoplastic elastomers (TPV), thermoplastic polyamine (TPA), thermoplastic copolyester (TPC), polyolefine elastomers (TPO), styrenic block copolymers (TPS). TPE is known for its elasticity, processability, recyclability, high melting temperature, and resistance ...
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Decoding tensile properties in the material data sheets of TPU
Jul 22 , 2022
Material data sheets showed material properties and can gain an in-depth understanding of the material during the material selection process. The same properties data will come out with different result by different test method , so it is important to test by the same standards when compare the properties of different material. TPU material tensile properties data is tested by ASTM standards. How ...
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Selecting the right materials for consumer electronics devices and components
Jul 29 , 2022
Smartphones, laptops, tablets, wireless ear buds, various wearable electronics, and a variety of other electronic devices which consist of cases, consoles, buttons, lenses, fixtures, internal plates, housings, and other electronic accessories and components. These items are typically made of plastic. Transparent plastic materials like polycarbonate, acrylic, polystyrene, or liquid silicone rubber ...
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Weak demand for TPU plastic in the market and TPU price keep going down
Aug 05 , 2022
From January 2022 to July 2022, the TPU price showed a trend of rising first and then reduce. This is due to the fact that the price of TPU raw materials has a great impact on the TPU price. After the new year, TPU price go up with the price of the raw material. But procurement of the TPU demand side obviously decrease. It is difficult to recover in the short term. In July, the price of TPU ended ...
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Why are TPU resin granular?
Aug 26 , 2022
Except for semi-finished TPU are blocks, most TPU on the market are granular. The shape of TPU particles usually been shaped as cylindrical strip and grain-like granule. The particle size is generally 2mm*3mm. TPU granules are produced by underwater extrusion granulation. Why are most TPU plastic granular? Below detail analysis for your reference. 1. Easy to use and production The granules can mak...
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Why should TPU resin be dried before processing?
Oct 14 , 2022
The linear TPU natural plastic molecule contains many strong polar groups (such as ester group, ether group, carbamate group, urea group, biuret group and allophanate group, etc.), The strong forces between the molecules of these groups and the hydrogen bonds form physical cross-links. TPU molecular structure determines that TPU plastic resin is easy to absorb moisture after be exposed in the air....
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What is Expanded thermoplastic polyurethane (E-TPU)
Nov 11 , 2022
Expanded thermoplastic polyurethane (E-TPU)－is produced by the expansion of air in rubber material called TPU. TPU beads are pressure heated at 150℃ the temperature of softening point of TPU. CO2 blowing agent is impregnated into Soft Segment which results in expansion of TPU. In this process, the original particles can expand to 6-9 times bigger, and each of TPU (thermoplastic polyurethane materi...
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What is shrinkage of plastics?
Mar 01 , 2023
The shrinkage of plastics is the volume contraction ratio of polymers from melt state to the cooled and rigid state. Most of the shrinkage occurs in the mold while cooling. A small amount of shrinkage occurs after injection as the molded part continues to cool. Total shrinkage is a result of molding shrinkage and post-shrinkage. The shrinkage of TPU plastic resin is ranged from 0.1% to 1%. The shr...
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Techniques for processing TPU: injection molding, extrusion, calendering and blow molding
Mar 09 , 2023
Techniques for processing TPU: injection molding, extrusion, calendering and blow molding TPU can be processed by a variety of techniques including injection molding, extrusion, blow molding and calendering. Injection molding is by far the most important technique for processing TPU material. TPU are easily molded into shapes such as shoe sole, wheels, electronic parts, seals, toys, gaskets, ortho...
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