vulcanization accelerators-the next level solution
Vulcanization Accelerators - The Next Level Solution for Tire
The global vulcanization accelerators market was valued at ~US$ 1.4 Bn in 2018. The vulcanization accelerators market is anticipated to grow at a CAGR of ~4.0% during the forecast period of 2019-2029. For the vulcanization accelerators market, East Asia is estimated to be a prominent region as it contributed a high revenue share in 2018.
Accelerators and activators break sulfur chains. Accelerated sulfur vulcanization systems require only 5-15 sulfur atoms per cross-link as compared to 40-45 S atoms/crosslink for a non-accelerated sulfur vulcanization. There are many accelerators available for the vulcanization of rubber. That is because there is a wide range of rubber articles
The accelerators can be further classified as primary and secondary accelerators. The primary accelerators are typically used at 0.5 to 1.5 phr. The vulcanization speed of these system can range from slow to ultra fast depending on composition and type of accelerator.
Avraam I. Isayev, in The Science and Technology of Rubber (Fourth Edition), 2013. 15.1 Introduction. Manufacturing of tire and other rubber products involves vulcanization process, an irreversible reaction between the elastomer, sulfur, and other chemicals producing crosslinks between the elastomer molecular chains and leading to the formation of a three-dimensional chemical network.
Vulcanization (British: Vulcanisation) refers to a range of processes for hardening rubbers. The term originally referred exclusively to the treatment of natural rubber with sulfur, which remains the most common practice; however, it has also grown to include the hardening of other (synthetic) rubbers via various means.
Vulcanization accelerators as alternative to elemental sulfur
For this reason we tested 10 different vulcanization accelerators chosen among commercially available products in order to verify if they could be used as alternative to elemental sulfur, even if added in very limited quantities. Two of these products gave excellent results and stabilized PMA containing 5% by weight of a radial SBS.
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