Antioxidants

A Highly Effective & Thermal Stable Antioxidant – Revonox® 608

Revonox® 608 is the best material in terms of its hydrolytic and thermal stabilities among spiro phosphite antioxidants.

Overview

Revonox^® 608 (608) is the best material in terms of its hydrolytic and thermal stabilities among spiro phosphite antioxidants. At ambient temperature, 608 maintains its free-flowing properties even after being exposed to a highly-humid environment (> 80%) for more than 30 days. This is superior performance than the general spiro antioxidant Deox 604 (CAS no. 26741-53-7), which deliquesced only three days under the same conditions. Due to its large molecular weight, the 10% weight loss temperature of 608 exceeds 340 °C as measured by TGA, which is 100 °C higher than the commodity phosphite antioxidant, Deox 68 (CAS no. 31570-04-4).

Superior Antioxidation and Color Protection with Revonox^® 608

Unlike other phosphite antioxidants, 608 will not discolor when molten. Therefore, 608 is highly recommended for use with engineering plastics such as PC, PET, PBT, and PEEK which are generally processed at elevated temperatures. In the PET multi-extrusion test conducted at 280 °C, when used in combination with the hindered phenolic antioxidant, Deox 10, 608 demonstrates a high antioxidation efficiency with an improved color protection compared with Deox 68. 608 has a sister version available called Revonox^® 608T which has a 1% maximum loading of amines as hydrolysis stabilizers and is recommended for use with PA, PP, PE, and PVC.

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Overview

Superior Antioxidation and Color Protection with Revonox® 608

Superior Antioxidation and Color Protection with Revonox^® 608