基于硅烷端聚丁二烯的开放结构二氧化硅网络,用于电动汽车轮胎

IF 8.6 2区 工程技术 Q1 ENERGY & FUELS Sustainable Materials and Technologies Pub Date : 2024-10-24 DOI:10.1016/j.susmat.2024.e01156
Kiwon Lim , Seung Jae Hong , Hyungjae Lee , Jaehyun Jung , Kihyun Kim , Jong Hyuk Park , Joona Bang
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引用次数: 0

摘要

向电动汽车(EV)的转变对于可持续发展的未来至关重要。轮胎制造商面临的挑战包括承受额外重量、控制瞬间扭矩、降低噪音以及提高行驶里程。要满足这些要求,就必须大幅降低轮胎胎面复合材料的滚动阻力,同时增强其机械刚度和耐磨性。为了解决这些问题,我们在橡胶复合材料中引入了一种基于硅烷封端液态类远志聚丁二烯的开放结构二氧化硅网络。这种独特的网络由化学结合在一起的二氧化硅聚集体组成,但表现出物理分离,使橡胶链得以渗透。渗入的聚合物链受到网络的紧密约束,从而显著提高了复合材料的交联密度和机械强度。此外,由于孤立的二氧化硅结构减小了颗粒间的摩擦力,并降低了聚合物链在网络中的流动性,60 °C 时的 tan δ 值明显下降。这些发现为轮胎行业开发节能耐用的电动车轮胎提供了重要启示。通过解决电动汽车的这些特殊要求,我们的研究为开发更具可持续性的轮胎铺平了道路,并有助于在可持续发展的未来更广泛地采用电动汽车。
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Open-structured silica network based on silane-terminated telechelic polybutadiene for electric vehicle tires
The shift towards electric vehicles (EVs) is essential for a sustainable future. Tire manufacturers face challenges including accommodating extra weight, managing instant torque, reducing noise, and improving driving range. Meeting these demands involves substantially reducing the rolling resistance of tire tread composites while simultaneously enhancing their mechanical stiffness and wear resistance. To overcome these issues, an open-structured silica network based on silane-terminated liquid-like telechelic polybutadienes was introduced into rubber composites. This unique network consists of silica aggregates that are chemically bound together, but exhibit physical separation, enabling rubber chains to permeate. The infiltrated polymer chains were tightly constrained by the network, resulting in a notable increase in the crosslink density and mechanical strength of the composite. Furthermore, the tan δ values at 60 °C showed a notable decrease as a result of diminished interparticle friction caused by isolated silica structures and reduced mobility of polymer chains within the network. These findings provide the tire industry with crucial insights for the development of energy-efficient and durable tires for EVs. By addressing these specific requirements of EVs, our study paves the way for more sustainable tires and contributes to the broader adoption of EVs in a sustainable future.
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来源期刊
Sustainable Materials and Technologies
Sustainable Materials and Technologies Energy-Renewable Energy, Sustainability and the Environment
CiteScore
13.40
自引率
4.20%
发文量
158
审稿时长
45 days
期刊介绍: Sustainable Materials and Technologies (SM&T), an international, cross-disciplinary, fully open access journal published by Elsevier, focuses on original full-length research articles and reviews. It covers applied or fundamental science of nano-, micro-, meso-, and macro-scale aspects of materials and technologies for sustainable development. SM&T gives special attention to contributions that bridge the knowledge gap between materials and system designs.
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