中国塑料2026，Vol.40Issue(1)：70-75,6.DOI:10.19491/j.issn.1001-9278.2026.01.010
脉冲力场作用下天然橡胶硫化过程与性能强化研究
Structural and property evolutions of natural rubber under an impulsive force field
刘志华 1高志鲲 1保楠楠 1黄照夏 1何和智1
作者信息
- 1. 华南理工大学机械与汽车工程学院,聚合物新型成型装备国家工程研究中心,聚合物成型加工工程教育部重点实验室,广东省高分子先进制造技术及装备重点实验室,广州 510640
- 折叠
摘要
Abstract
The crosslinking of natural rubber(NR)is essential for developing its high elasticity and practical utility.Con-sequently,advancing vulcanization methods towards greener,more efficient,and energy-saving processes is a major re-search focus.This study introduces a novel vulcanization technique for NR using a cyclic pulsed force field.This method aims to enhance the reaction between NR and sulfur molecules through pulsed external force,thereby achieving"pulse forced vulcanization."The structural and property evolution of the vulcanized rubber was characterized using crosslink density measurements,FTIR,and DMA.The results confirm that the pulsed force field effectively promotes the reac-tion of carbon-carbon double bonds in NR,leading to the formation of more crosslinking sites and a more robust network structure.Mechanical tests demonstrate significant improvements over traditional vulcanization:the tensile strength in-creased by 33.7%(from 13.857 to 18.527 MPa),hardness increased by 8.9%(from Shore A 56 to 61),and density rose from 0.946 to 0.970 g/cm³.In conclusion,pulse forced vulcanization markedly enhances the mechanical properties of natural rubber,offering a promising new method for producing high-performance rubber materials.关键词
强制硫化/脉冲力场/天然橡胶/交联结构Key words
forced vulcanization/impulsive force field/natural rubber/cross-linked structure分类
化学化工引用本文复制引用
刘志华,高志鲲,保楠楠,黄照夏,何和智..脉冲力场作用下天然橡胶硫化过程与性能强化研究[J].中国塑料,2026,40(1):70-75,6.
