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How to prevent the agglomeration of soft TPU particles
Aug 19 , 2022
TPU particles agglomeration make the material feeding difficult and greatly influence the efficiency of injection production. TPU particles agglomeration is more easier happen in soft TPU particles in summer high room temperature environment. TO prevent the agglomeration of soft TPU particles, TPU manufacturer factory can take following measure when packing at the production. 1.Packing after granu...
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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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Application of TPU in medical products
Feb 22 , 2023
Medical materials which are in direct contact with drugs or the human body often face more stringent requirements for toxicity test and properties. Secure medical material is closely related to our lives. TPU plastic material has excellent coagulation properties and the toxicity test results can meet medical requirements, also with good biocompatibility in clinical applications, no mutagenesis, no...
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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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Blow grade TPU been used to produce auto suspension components, air sole, air bladder and blow film
Mar 17 , 2023
Blow grade TPU except for must with appropriate crystallization speed and appropriate melt index, another important requirement is the control of the fisheye on the blow product. Preventing TPU blow products from producing fisheye not only must control the blow molding processing, but also control the physical impurities and hyperpolymer during the process of TPU synthesis...
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What is the most common type of resin used in the production of golf frisbee discs
Apr 07 , 2023
Golf frisbee is a game that combines the elements of golf and frisbee. The goal is to throw the frisbee from one tee box to another in as few throws as possible. The player with the lowest score at the end of the round wins. As Golf frisbee is an outdoor activities, so golf frisbee discs must be resistant to UV rays and withstand wear and tear from regular use. Plus the golf frisbee discs must als...
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