zinc oxide for rubber

Zinc oxide for rubber is a key additive in the rubber industry. It appears as a white or pale yellow fine powder, is odourless and tasteless, insoluble in water, and possesses excellent heat resistance and chemical stability. As a vulcanisation activator for natural and synthetic rubber, it accelerates the vulcanisation reaction and shortens the curing time. It also provides reinforcing, anti-ageing, UV-resistant and wear-resistant properties, significantly enhancing the mechanical strength and service life of rubber products. It is widely used in the production of various rubber products, including tyres, belts, hoses and seals.

The performance of rubber products depends on the efficiency and stability of the vulcanisation reaction, whilst the purity, activity and dispersibility of zinc oxide directly determine the vulcanisation outcome. High-quality products must possess high purity, high activity and good dispersibility; traditional products, however, suffer from insufficient activity and high impurity levels, which can easily lead to product cracking and accelerated ageing, and make it difficult to meet environmental compliance requirements.

High-quality zinc oxide for rubber is produced using an indirect process, with high-purity zinc ingots as the raw material. It is manufactured through a series of precision processes, including high-temperature calcination, oxidation, grinding and surface activation, with strict control over temperature, humidity and reaction times throughout production. The critical surface activation treatment enhances the product’s dispersibility in rubber, preventing issues such as roller adhesion and excessive dust generation, whilst simultaneously reducing heavy metal impurities. This ensures compliance with EU and domestic environmental standards, meeting the demands of high-end production.

Different rubber products require varying specifications of zinc oxide: products for tyres require high reactivity and resistance to UV ageing; those for adhesive tapes and hoses emphasise reinforcement and tensile strength; and sealing components require optimised dispersibility and sealing performance. Jiurunfa can provide specialised products with enhanced adaptability tailored to different applications.

Quality control of zinc oxide for rubber is of paramount importance, requiring continuous monitoring of key indicators such as purity and specific surface area to ensure product uniformity and stability. The zinc oxide for rubber produced by Jiurunfa strictly adheres to industry standards, with precisely controlled parameters to perfectly meet a wide range of production requirements.

When selecting zinc oxide for rubber applications, a reliable supplier is the key to quality assurance. As a leading energy and chemical enterprise, Jiurunfa Chemical Technology Co., Ltd. occupies a site of over 630 mu and boasts an annual output value of nearly 1 billion yuan. Backed by the technical support of the Beijing Chemical Industry Group, the company possesses mature production processes and a professional R&D team, enabling large-scale, standardised production. The company strictly adheres to ISO 9001 and other quality management systems throughout the entire production process. It handles its own import and export operations, with products exported to numerous countries and a strong reputation. With a comprehensive sales and service system in place, we offer customised solutions, rapid delivery and end-to-end technical support. By choosing Jiurunfa, you not only gain access to high-quality, environmentally friendly additives but also reduce costs, enhance efficiency, boost competitiveness and achieve a mutually beneficial partnership.

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