Raw Rubber Testing
Applicable products: natural rubber (NR), isoprene rubber (IR), styrene butadiene rubber (SBR), butadiene rubber (BR), chloroprene rubber (CR), nitrile rubber (NBR), butyl rubber (IIR), ethylene propylene diene monomer (EPDM), silicone rubber, fluororubber and other types of uncured rubber.
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Product Introduction
Detection range
Applicable products: natural rubber (NR), isoprene rubber (IR), styrene butadiene rubber (SBR), butadiene rubber (BR), chloroprene rubber (CR), nitrile rubber (NBR), butyl rubber (IIR), ethylene propylene diene monomer (EPDM), silicone rubber, fluororubber and other types of uncured rubber.
Applicable scenarios: raw material acceptance, quality grading, formula design, vulcanization performance evaluation, processing performance evaluation, quality arbitration, and compliance determination.
Testing items
Physical and chemical indicators: appearance, odor, impurities, ash content, volatile matter, density, Mooney viscosity, Mooney scorch, vulcanization characteristics (vulcanization curve, ML, MH, TS, TC).
Mechanical properties: tensile strength, tensile stress, elongation at break, tear strength, resilience, hardness, compression set.
Stability and aging: hot air aging performance, ozone aging performance, medium resistance performance.
Composition and purity: polymer content, bound styrene, acrylonitrile content, anti-aging agent content, metal ions, impurity detection.
Processing performance: mixing performance, extrusion performance, molding performance, low-temperature processing performance, heat-resistant processing performance.
Testing standards
GB/T 8081-2021 Specification for Natural Raw Rubber
GB/T 1232.1-2021 Determination of Mooney viscosity of uncured rubber
GB/T 1233-2021 Determination of Mooney scorch of uncured rubber
GB/T 9869-2014 Determination of Rubber Vulcanization Characteristics
GB/T 528-2009 Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber
GB/T 531.1-2021 Determination of Shore Hardness of Vulcanized Rubber
GB/T 3512-2014 Vulcanized Rubber - Hot Air Accelerated Aging Test
GB/T 6734-2020 Determination of density of uncured rubber
GB/T 11942-2021 Sampling of Synthetic Raw Rubber
GB/T 2941-2019 Rubber Physical Test Methods - General Rules for Preparation and Adjustment of Test Specimens
was established in 2011. As a national high-tech enterprise recognized by the Zhejiang Provincial Higher People's Court as a judicial authentication institution for construction engineering quality, we specialize in structural performance testing and safety assessment of construction projects, special equipment, communication towers, electromagnetic environments, large bridges, and building safety appraisal.
The company has more than 100 professional and technical personnel, over 90% of whom hold various medium and senior technical certificates. Equipped with complete testing equipment worth over RMB 10 million, our business scope covers the whole country.
