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Blooming in EPDM

Accelerators to Control Blooming in EPDM (Part 2)

By | Blog

Ethylene-α-olefin elastomers, particularly ethylene-propylene-diene (EPDM) rubbers, are excellent all-purpose rubbers. Environmental factors such as oxygen, heat UV and ozone tend to degrade the rubbers.  These factors cause free radicals to form which attach to the polymer chain and make the rubber harder.

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Accelerators to Control Blooming in EPDM

By | Blog

Curing in EPDM (Ethylene propylene diene) rubbers is much slower compared to curing in conventional diene rubbers. Therefore, it usually requires a high concentration of highly active curing accelerators. This, though, has its own issues as there is a limit to using high amounts of accelerators, as their activity tends to level off with increased concentration and BLOOMING problems start.

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Anti-Static discharge

Protection in Plastics against anti-static discharge

By | Blog

Static electricity has its uses, no doubt. Think laser printers, photocopiers and flash bulbs for photography. Why do we call this static electricity? Static electricity is a kind of electric charge that stays in one place, as in it is really is static. On the other hand, current electricity or electric current), is electricity that moves from one place to another along a definite path called a circuit.

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Insoluble Sulphur

Why use Insoluble Sulphur as a vulcanising agent for Rubber!!

By | Blog

Insoluble sulphur is an important rubber additive. The reason the focus in on the use of INSOLUBLE sulphur is because common soluble sulphur tends to bloom i.e., deposition of sulphur inside or at the surface of the rubber. Insoluble sulphur improves product quality, wearability and resistance to both fatigue and ageing.

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Particle Size Effects

Effect of Particle Size in Dispersions for Latex

By | Blog

whilst compounding for latex. Apart from the functional and technical requirements of users of additive dispersions, Mr. Paul McKavanagh, Ex Director – Aquaspersions, Malaysia has set up a very valiitive dispersions, Mr. Paul McKavanagh, Ex Director – Aquaspersions, Malaysia has set up a very valid argument and made it very clear why paying a small reasonable raw material cost premium for outsourced dispersions makes very good business sense.

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