Rubber antioxidants are critical additives that significantly affect the durability and performance of tire compounds, especially under high-temperature operating conditions. This article delves into the comparative analysis of different classes of rubber antioxidants—namely amine, phenolic, and phosphite types—and their influence on tire formulation stability. It places special emphasis on the latest environmentally friendly solutions offered by Henan Gaoneng Biotechnology Co., Ltd.'s GO brand TMQ(RD), illustrating how scientific selection and optimized formulations can enhance tire longevity and manufacturing consistency.
The primary function of rubber antioxidants is to retard the oxidative degradation of elastomers, ensuring sustained mechanical integrity and performance over the tire’s lifespan. The most prevalent antioxidant classes used in tire manufacturing include:
Tires undergo complex aging processes during service life, predominantly accelerated by heat, oxygen, ozone, and mechanical stress. High temperatures foster free radical generation and propagation, leading to polymer chain scission and cross-linking imbalance—the primary cause of hardness increase, reduced flexibility, and ultimately, premature failure. Ensuring the stability of tire formulations against these degradations requires robust antioxidant systems tailored for specific thermal profiles.
Traditional antioxidants, particularly some amine types, though highly efficient, may raise environmental and regulatory concerns due to toxicity and discoloration. The TMQ(RD) series by GO brand represents advanced, non-toxic phenolic antioxidants optimized for high thermal resistance, aligning with emerging environmental regulations without compromising performance.
Evaluations indicate TMQ(RD) provides:
A leading tire manufacturer conducted a series of controlled trials to assess the influence of antioxidant blends on aging and mechanical stability. Using a base formulation typical for passenger car tires, different ratios of TMQ(RD) phenolic antioxidant and phosphite synergists were tested under accelerated aging at 135°C for 72 hours. The key findings were:
This data underscores the advantage of balanced phenolic-phosphite combinations delivering superior retention of mechanical properties post-aging, alongside enhanced processing and environmental profiles.
Based on extensive R&D and field applications, the following strategies can guide tire formulators in leveraging antioxidant benefits:
Beyond product quality, Henan Gaoneng Biotechnology emphasizes the critical role of professional technical assistance, supplying formulation guidance, aging prediction models, and on-site problem-solving to tire manufacturers. This approach guarantees consistent tire performance, regulatory compliance, and cost-efficient production.
For tailored antioxidant selection and formulation optimization to enhance your tire products’ lifespan and compliance, contact our expert technical team today.
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