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Type and performance test of paint protective film
Sep 24 , 2021
Paint protective film is commonly known as invisible car jacket. Paint protective film is transparent and invisible on the car. The protective film covering the surface of the car paint and is to protect the original paint. 一．Don’t new painting better than original paint protection? The difference between original paint and spray paint 1.The structure is different: the original paint is composed o...
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Why China has to ration electricity and how that could affect TPU price
Oct 15 , 2021
Recently, the National Development and Reform Commission announced that the energy consumption intensity of nine provinces and regions increased in the first half of the year instead of decrease! In addition, the reduction rate of energy intensity in 10 provinces did not meet the schedule requirements, and the national energy conservation situation is very severe. As to balance electricity supplie...
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Why transparent TPU products turn yellow over time and how to deal with it
Nov 26 , 2021
Most of the transparent products on the market are made from a material known as thermoplastic polyurethane, or TPU. TPU is widely used in daily necessities, sporting goods, toys, decorative materials and other fields. TPU products are durable and flexible thanks to the good elasticity, abrasion resistance and oil resistance features of TPU material. Divided by the difference material, there are m...
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Requirements for TPU materials in the automated production of mobile phone
Dec 03 , 2021
The manipulator of injection molding machine can be used for automatic nozzles, in-mold inserts, in-mold labeling, out-of-mold assembly, shaping, sorting, stacking, product packaging, mold optimization, etc. Manipulator of the injection molding machine is more and more widely used to lower the cost of labor. The application of automatic plastic molding is widely applied. Injection product quality ...
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How to control the chromatic aberration of TPU injection molded products
Dec 10 , 2021
Color difference is a common defect in TPU injection molded products. TPU injection products may be scrapped in batches due to chromatic aberration. There are many factors affecting chromatic aberration, involving raw material TPU resin, color masterbatch, the mixing of material and color masterbatch, injection molding process, injection molding machine, mold, etc. It’s difficult to control the co...
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How to set the production temperature of TPU injection products
Jan 07 , 2022
TPU thermoplastic is melted and flowed by heating then cooled to form a certain shape products. Sufficient pressure and good control of the flow state are the keys to produce uniform and excellent physical properties TPU injection products. Compared with PVC and ABS, TPU has a strict processing temperature range. If the temperature is too high, the viscosity will decrease, the resin melt will flow...
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what causes delamination in injection molding of tpu tpe compound
Feb 25 , 2022
Delamination is a injection products defect with the surface layers of a molded part peeled off which is also appear as fish-scaling. It may also be called lamination or layering. There are several reasons that cause the problem. It may be caused by material, processing, equipment and tooling. From a material standpoint, TPU material tend to be hygroscopic and moisture can hydrolyze TPU resins and...
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How we help customer to solve the fogging appearance in TPU injection products
Apr 22 , 2022
Customer description: compared with the test product, the bulk products is with fogging and poor transparency problem. Technician analyse: 1.Check the temperature of cooling water. Check the mold temperature. Check if the transparency of all the products is uniform. 2.Is the TPU material been fully dried 3.Is the production process of test product and bulk products same? 4.High temperature will be...
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What TPU test pieces consist of and what are they used for
May 13 , 2022
A TPU physical properties test pieces consist of abrasion test particles, crescent, dog bone, test coupons. Different part be used to do different properties test. The main physical properties of TPU are: hardness, tensile strength, 100% modulus, elongation at break, tear strength, compression set, resilience, abrasion, melt index, yellowing resistance, high/low temperature resistance, hydrolysis,...
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