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.
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.
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.
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.
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.
On the 8th of July 2022 Business Insider ran an article, “High level of toxic chemicals found in drinking water across the nation”
This month saw policy makers and experts come together to discuss revision in REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) as part of the European Chemical Strategy for Sustainability which aims to achieve the zero pollution by 2050
Ever had a consignment of finished rubber goods, pristine looking while packing and loading, only to be opened in the destination country, 20 days later, COVERED WITH BLOOM?
For many chemicals important toxicological and ecotoxicological studies have never been carried out.
Vietnam and China are the key manufacturing hubs for almost all major footwear brands in the US. Covid has played rogue and it has led to a disruption in manufacturing.
