Study on Dehydration Process of Wet Natural Rubber by Single Screw Dehydrator and Properties of Dry Natural Rubber

Mei Chen; Fu Quan Zhang; Yong Zhou Wang; Mao Fang Huang; Wei Yong Deng

doi:10.4028/www.scientific.net/AMR.418-420.544

Paper Titles

Study on Foam Properties of Alkylbenzene Sulfonate Gemini Surfactants
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Research on the Confidence Interval of Indirect Detection
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Effects of the Particle Size Variety of Metal Oxide on the Absorption Property of Long-Wavelength Infrared Laser
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Preparation and Properties of Halogen-Free Flame Retardant Polyurethane Foams
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Study on Dehydration Process of Wet Natural Rubber by Single Screw Dehydrator and Properties of Dry Natural Rubber
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The Assembly Success Rate and the Estimation of Assembly Time for a Flexible Assembly System
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Photocatalytic Activity of Bi₂O₃ Prepared by Different pH Value
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Study on Influence of Modified SiC Nano-Powders on the Microstructures and Work-Hardening Properties of ZGMn13
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Data-Conversion and Displaying for Numerical Simulation of EMCC with FEM-FVM-Joint Method
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 418-420Study on Dehydration Process of Wet Natural Rubber...

Study on Dehydration Process of Wet Natural Rubber by Single Screw Dehydrator and Properties of Dry Natural Rubber

Abstract:

In this work, one self-invented closed single screw dehydrator was used to dehydrate wet natural rubber, instead of current three opened crepers and one hammer mill at home and abroad. The dehydration technology and the properties of the obtained dry natural rubber were studied. The results show that single screw dehydrator can simplify dehydration process. The water consumption of single screw dehydrator is 20% of current productive technology, meaning a lower wastewater discharge and treatment cost of wastewater. The moisture content of dehydrated natural rubber is lower than 20%, a good dehydration effect. The dry natural rubber dehydrated with single screw dehydrator has an improved thermal-oxidation ageing resistance whether dried by hot-air or microwave. The thermal-oxidation ageing resistance of natural rubber dried by microwave is better than that of hot-air drying, the value of initial plasticity (P₀) and plasticity retention index (PRI) are 29.3 unit value and 19.26 unit value greater than that of SCR5 in GB/T 8081, respectively.