基于科学计量的天然橡胶学科领域前沿热点分析

当前天然橡胶产业持续低迷,追踪国际天然橡胶研究前沿热点对于我国天然橡胶产业发展和升级具有重要参考价值。本研究采用科学计量方法结合CiteSpace技术,对Web of Science数据库的天然橡胶文献进行共被引、共词和聚类分析,概述了该领域重要的基础文献,揭示其学科领域研究前沿和热点。结果表明,共探测出6个前沿热点,高度聚合在三大学科领域。其中,在化学与材料科学领域,领先优势十分明显,共遴选出4个前沿热点：（1）功能化改性石墨烯或氧化石墨/天然橡胶纳米复合材料;（2）生物基体/天然橡胶纳米复合材料;（3）弹性体或天然橡胶纳米复合材料的应变诱导结晶行为;（4）废旧橡胶的自修复与回收加工。在生物科学领域,遴选出1个前沿热点,即橡胶树基因组测序、橡胶生物合成路径与关键基因。在生态与环境科学领域,遴选出1个前沿热点,即橡胶林的扩张及其对生态环境的影响。高频和高突现关键词在三大学科呈现由多到少分布,反映了当前天然橡胶研究领域发展趋于多方向性,但其前沿热点相对集中在天然橡胶全产业链的下游。

Analysis on Subject Domain of Fronts and Hotspots in Natural Rubber by Scientometrics

At present, the natural rubber industry has fallen into continuous tremor. Consequently, tracking and analyzing the hotspots in the fields of international natural rubber research is of important referring values for developing and upgrading the natural rubber industry of China. Based on the database from Web of Science, scientometrics methods and CiteSpace were used to analyze the co-citation, co-word and clustering of natural rubber literature. The basic articles were summarized to track and reveal the future fronts and hotspots in this field. The results showed that six hotspots were detected, which were highly concentrated in the three fields. Of the fields of chemistry and material science, the leading advantage was very obvious, and four hotspots were protruded: (1) functionally modified grapheme or graphene oxide/natural rubber nanocomposites; (2) biobased/natural rubber nanocomposites; (3) strain-induced crystallization behavior of elastomers or natural rubber; (4) self-healing and recycling of waste rubber. Of the field of biological science, there was one hotspot: rubber tree genome sequencing, rubber biosynthesis pathway and key genes. Of the field of ecological and environmental science, the expansion of rubber plantation and its impact on the ecological environment is becoming important research hotspots in this field. High-frequency and high-emergency keywords showed a distribution trend of gradually less in the three major disciplines, which reflecting that the current research field of natural rubber intends to be multi-directional, but its frontier hotspots are relatively concentrated in the downstream link of the whole natural rubber industry chain.