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Introduction of TPU full form and it’s 3 major material
Jun 09 , 2021
TPU is a block copolymer which is formed by the reaction and polymerization of diphenyl di-different properties (MDI), diisotropic compounds (TDI), macromolecular polyols and extender chains. It’s consisting of hard and hard segments. The soft segments are made of MDI, TDI and chain expander. The soft segments are made of MDI, TDI and macromolecular polyols. The soft segments are macromolecule dio...
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The difference in TPE and TPU materials and how to distinguish they
Jun 17 , 2021
From the perspective of TPE is the general term for all thermoplastic elastomer, TPU is only one type of thermoplastic elastomer TPE.In general, TPE refers to the alloy elastomer based on SBC (mainly SEBS, SBS) styrene elastomer blending modification, and it is also called TPES in some countries. Here we mainly discuss the difference in characteristics and applications of TPE and TPU.TPE and TPU i...
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KUNSUN 40ft full container loading of TPU Resin S-190AL to Vietnam
Jun 25 , 2021
Today, KUNSUN 40ft full container loading of Thermoplastic Polyurethane TPU Resin S-190AL to Vietnam. In this shipment, 40ft full container loaded with 20 pallets and 25 tons TPU granule.Thermoplastic polyurethane S-190AL is polyester based transparent TPU plastic particles with density of1.21±0.02 g/cm3, tensile strength of 300 kgf/cm2, elongation at break of 550%, hardness of 91A±2 A.S-190AL is ...
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Classification and application of TPU over-moulding
Jul 07 , 2021
TPU over-moulding mainly divided into bond with metal and bond with plastic.TPU bond with metal is to encapsulate a layer of soft plastic on the metal surface. It make the surface of the metal features with anti-slip, shock-absorbing, anti-corrosion. There are generally four over-moulding methods in TPU overmoulding metal.1. Block over-mouldingTPU block over-moulding has defect of poor bonding and...
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Causes and solutions of dents in injection molded parts
Jul 16 , 2021
Dents in injection molded parts are all defects caused by insufficient melt replenishment when the thicker parts are cooled. The shrinkage of plastic parts (surface shrinkage and internal shrinkage) The main reasons for such defects are improper control of molding conditions, mold defects, raw materials that do not meet the molding requirements, and unreasonable design of the shape of the plastic ...
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What is bio-based TPU
Jul 23 , 2021
Bio-based materials refer to biomass materials made from renewable natural resources (such as corn, cassava, wheat, potato, cellulose, palm oil, etc.) bio-based compounds, bioplastics, wood-plastic composite materials which made by biological, chemical, and physical methods are environmentally friendly, renewable and biodegradable. Bio-based material is widely used to produce shoes, bags, clothing...
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What causes cracking in TPU plastic injection molded parts and how to fix it
Jul 30 , 2021
Cracks are a fatal defect of TPU products, it usually happens to be hairy cracks on the surface of the product. It easily happened in the sharp edges and corners. It is harmful for products usage when the invisible cracks occur in the injection parts,The main reasons that cause cracks during production are as follows: 1 Difficult to demold 2 Overfilling 3 Mold temperature is too low 4 Defects in p...
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Erke a brand supported by polymer materials became popular overnight
Aug 06 , 2021
Erke donated 50 million yuan in materials to Henan's rainstorm-stricken areas under the circumstances of its own poor management! Countless netizens moved and support this conscientious enterprise with various "wild consumption"As a well-known sports brand in China, Erke leaves a low-key impression to people. Erke has been working hard on running shoes, sports shoes and other series ...
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Causes and treatment methods of warpage in Plastic Injection Molding
Aug 13 , 2021
Warpage is the injection product defects that parts deviates from the shape accuracy requirements of the part. It is one of the common and difficult solved defects in injection mold design and injection production.Causes of warpageWarpage is caused by uneven stress and shrinkage during the products injection process. Die Adhesion, insufficient cooling, inadequate shape and strength of the part, po...
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