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Introduction to Natural Rubber
Definition
Natural rubber (NR) is a naturTất cảy occurring high-molecular-weight elastomer obtained from the latex secreted by the rubber tree (primarily Hevea brasiliensis). After undergoing coagulation, drying, and other processing steps, it becomes a key polymeric material. Its main chemical component is polyisoprene.
Performance Characteristics
Advantages:
High Elasticity: Exhibits excellent elasticity and resilience across a wide temperature range, with an elongation at break exceeding 1000%.
High Strength and Toughness: Possesses superior mechanical strength, with outstanding tear resistance and abrasion resistance.
Good Processability: Demonstrates excellent plasticity and adhesion, making it easy to process through mixing, calendering, extrusion, and vulcanization.
Excellent Insulation: Serves as a high-quality electrical insulating material.
Disadvantages:
Poor Aging Resistance: Susceptible to aging under oxygen, ozone, ultraviolet radiation, and heat, leading to tackiness or brittleness.
Poor Oil and Solvent Resistance: Swells and loses strength when exposed to mineral oils, fuels, or certain organic solvents.
Limited Temperature Resistance: Operates effectively within a range of –60 °C to +80 °C; performance degrades significantly outside this range.
Ứng dụng Fields
Due to its unique combination of properties, natural rubber is widely used in numerous ngành công nghiệp:
Tire Industry: The largest Ứng dụng sector, used in the SẢN PHẨMion of truck, passenger car, and aircraft tires, as well as inner tubes.
Industrial CÁC SẢN PHẨM: Includes conveyor belts, sealing components, vibration-damping pads, rubber hoses, and other engineered rubber goods.
Medical CÁC SẢN PHẨM: Such as medical gloves, IV tubes, and condoms.
Consumer Goods: Such as rubber shoes, erasers, bTất cảoons, and rubber bands.
Conclusion
With its unparTất cảeled elasticity and toughness, natural rubber (NR) remains an irreplaceable strategic material and essential raw resource in both national ngành công nghiệp and everyday life. Sunlite continues to advance rubber technology and processing innovation to maximize the performance and sustainability of this vital natural material.
Natural rubber (NR) is a naturTất cảy occurring high-molecular-weight elastomer obtained from the latex secreted by the rubber tree (primarily Hevea brasiliensis).
