Explicación de los ingredientes de los compuestos de caucho: rellenos, sistemas de curado y aditivos
Qué contiene realmente un compuesto de caucho más allá del polímero base y por qué existe cada ingrediente.
compoundingfillersvulcanizationacceleratorscarbon black
A compound is rarely just rubber A finished rubber compound is a blend: a base polymer plus a set of ingredients, each added for a specific reason.
Fillers — the volume builders - **Carbon black:** reinforces strength and abrasion resistance; the dominant filler in tires. - **Silica (precipitated):** lowers rolling resistance and heat build-up; common in "green" tires, often used with silane coupling agents. - **Calcium carbonate / clay:** low-cost extenders that reduce compound cost.
Cure system — turning gum into a solid - **Sulfur:** the classic vulcanizing agent that cross-links polymer chains. - **Accelerators:** speed up vulcanization so curing finishes in minutes, not hours. - **Activators (e.g. zinc oxide + stearic acid):** make the accelerator work efficiently. - **Peroxides:** an alternative cure system for saturated rubbers such as EPDM and silicone.
Protective and processing aids - **Antioxidants / antiozonants:** slow aging from heat and ozone. - **Plasticizers / softeners:** improve processing and low-temperature flexibility. - **Peptizers:** assist mastication of natural rubber.
Why this matters to buyers The same base polymer can yield very different parts depending on the formula. When you request a quote, share the working conditions (media, temperature, hardness) rather than only a material name — that lets a factory propose the right compound. [Post an RFQ](/rfq/post) with your application details.
Sourcing & Support - Customization supported: size, color, packaging and certification can be customized to drawings; MOQ is subject to the supplier. - Data shown: market figures are from public industry research (2025 global rubber market ≈ USD 382 billion; China consumption >11 million tonnes). Platform live inventory: 251 products / 42 categories (as of 2026-10). - For reference of current stock only: the parameters above are general industry ranges; final specs are subject to actual inventory and the quotation sheet. - For specific details, contact our team: specs, lead time, MOQ, certification files, etc. — please [submit an RFQ](/rfq/post) or contact our online support directly.
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