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TPR Thermoplastic Rubber Question
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Posted by: schase

10/19/2006, 19:05:06

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I am trying to find out more about TPR or Thermoplastic Rubber. What is the definition of TPR? Is there a difference between TPR and TPE? What material fall in the category of TPR, or what are the criteria for a material to be classified as a TPR? I have not been able to find good answers to these questions. So I would appreciate any help I can get.







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Re: TPR Thermoplastic Rubber
Re: TPR Thermoplastic Rubber -- schase Post Reply Top of thread Forum
Posted by: k_rg

02/04/2007, 04:28:27

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Rubber - whether natural or synthetic, has a long coiled polymer chain. For putting the material to best use-to get good strength, age, oil, oxidation resistance, we must mix the rubber with a vulcanising chemical, which will crosslink the polymeric chains. In TPE or TPR, these chains are already crossbound by physical aggregation or domains which prevent the chains from slipping past each other. On heating these hard domains yield allowing the polymer to flow like a plastic which can be made to fill a mold. On cooling, the TPE solidifies again into a hard mass. Like plastics, the material can be repeatedly heated to flow and cooled till they are thermally decomposed. TPEs are man made to have these "block" sections in the polymer.




R.Gopal


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Re: TPR Thermoplastic Rubber
Re: TPR Thermoplastic Rubber -- schase Post Reply Top of thread Forum
Posted by: Kelly Bramble

10/19/2006, 21:36:32

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ThermoPlastic Rubber TPR is best described a material which has both the characteristics of rubber and plastic. Typical applications are the hard rubber/plastic soles on many shoes or the the rubber/plastic material used on hane tool grips.

ThermoPlastic Elastomer (TPE) are a softer version of TPR. TPEs permit fabrication of "rubber-like" articles with the speed, efficiency, and economy of injection molding, extrusion, or blow molding. This material is typically used where flexibility and soft-touch is desired in the application.








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