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Franklin Fibre Blog Post

‘Surface Roughness’ in composite materials - blog post image
  • Franklin Fibre Lamitex
  • 25 Sep 2018

‘Surface Roughness’ in composite materials

Quite often in the process of manufacturing & fabricating industrial laminates a specific surface roughness is indicated. Be it the purpose of reducing electrical arc tracking across the surface of the composite material, or to make sure the surface is rough enough to hold an adhesive; surface roughness can be a vital component of a machined composite part’s integrity. 

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‘Outgassing’ in Composite Materials - blog post image
  • Franklin Fibre Lamitex
  • 16 Jul 2018

‘Outgassing’ in Composite Materials

Lamitex ® composites have been the chosen materials in the aerospace industry for many years due to their high material strength and dimensional stability under extreme conditions. When considering a composite material for spacecraft or aerospace applications it is often imperative that you take into account their outgassing properties. ‘Outgassing’ refers to the discharge of gaseous material (many times water vapor) as a result of an atmospheric change in the environment. For example; if the material or part is exposed to a vacuum or high heat. Due to the manufacturing process and nature of the base material of most laminate composites, trace amounts of water vapor and other gases tend to get into the finished product, making them ‘outgassers’ under extreme conditions. As you can see from the table below, different composites will vary among each other in moisture absorption due to the nature of the filaments and resins used.  

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Making Sense of Thermal Analysis of Composites - blog post image
  • Franklin Fibre Lamitex
  • 25 Jun 2018

Making Sense of Thermal Analysis of Composites

Introduction to Thermal Analysis
Thermal analysis covers a group of techniques allowing properties of a sample to be investigated as a function of temperature and/or time. The applied temperature system consists of a sequence of segments where the sample is heated or cooled at a constant rate or held at a constant temperature. In many experiments the atmosphere also plays an important role, the most common atmospheric conditions include inert and oxidizing gases. 

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