Plastics

Designing with Plastics

Firstly, designing with plastics can be addressed under four inter-related headings: Function: Will it do the intended job? For how long? Form: Does it have the shape to: Do the function economically? Will it please the user? Does it suit …

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Where are Engineering Thermoplastics Blends going ?

Engineering Thermoplastics Blends? The timeline of appearance of materials for the plastics industry can be viewed as several overlapping phases. The industry started with natural materials such as horn and bone, which can be thermoformed.  Next came chemical modification of …

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Where are Engineering Thermoplastics Blends going ?

How Easy is it to See Through the Optical Properties of Thermoplastics?

Transparency in thermoplastics is a property that differentiates them from many other manufacturing materials. This includes metals, ceramics and wood, and, in some cases surpasses glass.  But not all thermoplastics offer good transparency. In semi-crystalline thermoplastics, because of the different …

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How Easy is it to See Through the Optical Properties of Thermoplastics?

Has PVC weathered the negative attitudes of Environmentalists ?

A common observation is “If PVC appeared on the market now, it would be rejected” It is true that the basic poly(vinyl chloride), PVC, is unacceptably unstable to processing temperatures and to uv light. This results in discolouration in both …

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Has PVC weathered the negative attitudes of Environmentalists ?

What do Liquid Crystalline Polymers have to offer?

When liquid crystalline polymers (LCP) first appeared in the 1980s it looked like the dawn of a major new class of thermoplastics.  Thermotropic LCPs, mostly aromatic polyesters, have the interesting feature of retaining a degree of order in the melt …

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What do Liquid Crystalline Polymers have to offer?

What can imide links do that amide cannot?

Polymers with amide links have been around for some time but the close cousins, the imide links, are less well known.  The original polyimides, first synthesised over 60 years ago, offered some amazing high temperature performance up to 300oC but …

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What can imide links do that amide cannot?

Does POM stand for ‘Plastics Outperforming Metals’ ?

POM is the abbreviation for ‘polyoxymethylene’ (also known as ‘polyacetal’ … or just plain old ‘acetal’) synthesised from formaldehyde. It’s a readily available starting material, but, despite humble beginnings, is an engineering thermoplastic suitable for metal replacement. For around 100 …

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