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Dr Charlie Geddes

Will Styrenic thermoplastics evolve further to meet design demands?

Does design drive demand? This month, polymer expert and technical blog author, Dr Charlie Geddes, looks at whether styrenic thermoplastics will evolve further if demand warrants it. more

9 Feb 2015 16:21 Materials Blog

Creepy things can happen with long term loading of thermoplastics

This month, polymer expert and technical blog author, Dr Charlie Geddes, looks at how to avoid getting caught out by creep. more

30 Oct 2014 16:11 Materials Blog

The long and the short of fibre reinforcement of thermoplastics

This month, polymer expert and technical blog author, Dr Charlie Geddes, looks at fibre reinforcement in terms of properties, products and price more

8 Sep 2014 09:00 Materials Blog

Transparent ABS can be a clear winner

This month, polymer expert and technical blog author, Dr Charlie Geddes, ‘clears’ the myths about ABS and looks into how changing the chemical competition can affect its properties more

17 Jul 2014 09:00 Materials Blog

Colour your thinking on the optical properties of thermoplastics

This month, polymer expert and technical blog author, Dr Charlie Geddes, looks at what determines colour in thermoplastics. more

16 May 2014 16:23 Materials Blog

Where are engineering thermoplastics blends going?

This month, polymer expert and technical blog author, Dr Charlie Geddes, wonders where industry demand for increasingly versatile applications might take polymer blends. more

11 Apr 2014 12:00 Materials Blog

How can a thermoplastic elastomer be both thermoplastic and elastomer?

This month, polymer expert and technical blog author, Dr Charlie Geddes, takes a look at the unique properties and best uses of TPEs more

6 Mar 2014 00:00 Materials Blog

Sulphur: From the Underworld to Thermoplastics

This month, polymer expert and technical blog author, Dr. Charlie Geddes, takes a view on sulphur and its uses in processing thermoplastics. more

29 Oct 2015 12:11 Materials Blog

This month, polymer expert and technical blog author, Dr. Charlie Geddes, at the differences and uses of SBS and SEBS. more

21 Sep 2015 15:19 Materials Blog

Coping with weld lines

This month, polymer expert and technical blog author, Dr Charlie Geddes, looks at the causes and consequences of weld lines in injection moulding applications, offering expert advice on how best to deal with them. more

5 Aug 2015 12:01 Materials Blog

What determines friction between thermoplastic components?

This month, polymer expert and technical blog author, Dr Charlie Geddes, goes back to the classroom when it comes to friction. more

12 May 2015 12:29 Materials Blog

How easy is it to see through the optical properties of thermoplastics?

This month, polymer expert and technical blog author, Dr Charlie Geddes, discusses the optical properties of different types of thermoplastics. more

13 Feb 2014 10:15 Materials Blog

Does FR imply fire resistance?

Remember, remember the 5th November...this month, polymer expert and technical blog author, Dr Charlie Geddes, discusses fire, flames and smoke. more

1 Nov 2013 14:32 Materials Blog

What does a moulder understand by the term ‘diesel burning’

In his column this month, polymer expert and technical blog author, Dr Charlie Geddes, discusses the unwanted ‘black spot’ on moulded plastics. more

22 Aug 2013 14:12 Materials Blog

What do we mean by the heat resistance of thermoplastics?

This month, in the second installment of our new materials technical blog, polymer expert, Dr Charlie Geddes, considers the heat resistance of thermoplastics. more

21 May 2013 14:48 Materials Blog

A few words about Engineering Thermoplastics

Have you ever wondered about the term ‘Engineering Thermoplastic’? Today it is conveniently applied to certain families of thermoplastics which have a higher performance than the group of thermoplastics labelled ‘Commodity Thermoplastics’. more

19 Apr 2013 10:36 Materials Blog