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PLASTIC ADDITIVES SUMMARY

Many functions of the polymers require properties, supplementary to those provided by the base of the polymer. The additives available are varied and in some cases where demand is high it may be added to a certain grade of polymer at the production stage.

 

Here at CJ Tool & Mouldings, we have created a list of the most commonly used additives.

 

COLOUR PIGMENTS

To get a desired colour, small particles of high density colours can be added to a natural polymer. You can create special effects with these coloured pigments such as metallic sparkle and pearlescent looks.

 

ANTIMICROBIALS/ANTIBACTERIALS

You can add antimicrobials/antibacterials to plastic products. These additives help battle against infections. Many NHS hospitals now have plastic products containing this additive.

 

BIOSTABILISERS

This additive helps prevent the deterioration of plastic products, where it may be susceptible to biological attack.

 

ANTIOXIDANTS

 

Oxidation can result in loss of impact strength, surface cracks and discolouration in plastic products. This additive helps to prevent this.

 

ANTISTATICS

 

Plastics can build up a static charge on the surface which can disturb processing and can be an issue for hygiene and aesthetics. This additive helps prevent that build up.

 

BIODEGRADERS

 

This additive increases the degradability of plastic products, by making it softer and more flexible.

 

FOAMING/BLOWING AGENTS

 

These additives are useful in reducing weight and sink age in thick section parts, as the foam forms an internal structure.

 

FRAGRANCES

This additive is mainly used in plastic products in the home such as dog bags or nappy bags.

 

LUBRICANTS

This external additive is added to help prevent damage to the mould or part during processing. Internal slip agents can also make the surface slippery.

 

Through working within a wide range of customer’s industries we have developed expertise for an extensive range of polymer types.

CONTACT US

Get in touch today and talk to the specialists, click here.

Our team will be more than happy to help, advise and quote for your requirements.

Looking for more information? Check out our blog, News & Views for useful articles, tips and tricks on plastic injection moulding.