When it comes to recycled rubber inner tubes, some people may not be very familiar with them. An inner tube is a circular elastic tube designed to maintain pressure inside a tire. It offers excellent sealing properties and heat resistance. As a compounding agent in recycled rubber inner tubes, rubber-grade zinc oxide not only improves the processing techniques for these tubes but also enhances their performance. Below, we’ll briefly introduce the roles zinc oxide plays in recycled rubber inner tubes.

1. Function as an Oxidizing Agent

Rubber-grade zinc oxide is commonly employed as an oxidizing agent in rubber products. It not only enhances the tear resistance and abrasion resistance of recycled rubber inner tubes but also provides excellent reinforcing effects for the inner lining of recycled rubber tubes.

2. Functioning as an Activator

Zinc oxide serves as an activator in recycled rubber inner tubes. It can be used in conjunction with acidic substances and undergoes chemical reactions to form compounds that accelerate the vulcanization process. This enhances the vulcanization efficiency of the inner tube, resulting in superior abrasion resistance and tear strength.

When manufacturing recycled rubber inner tubes, companies need only rationally adjust the zinc oxide dosage to obtain superior-quality tubes. Additionally, zinc oxide offers multiple functional benefits; its inclusion allows for reduced usage of other additives.