Heterogeneous network design strategy toward mechanically robust and recyclable elastomers

弹性体 材料科学 天然橡胶 热塑性弹性体 复合材料 二烯 三元乙丙橡胶 共价键 热塑性塑料 橡胶弹性 聚合物 共聚物 有机化学 化学
作者
Shifeng Fang,Jieru Wang,Siwu Wu,Shuangjian Yu,Zhenghai Tang,Baochun Guo
出处
期刊:Polymer [Elsevier BV]
卷期号:245: 124710-124710 被引量:1
标识
DOI:10.1016/j.polymer.2022.124710
摘要

It is well-accepted that thermoplastic vulcanizates (TPVs) integrate the fascinating recyclability of thermoplastics and the mechanical robustness comparable to nano-filled elastomers, deriving from the particular heterogeneous network structure. However, the elasticity of TPVs is inferior to covalently cross-linked elastomers, since the irreversible deformation or even collapse of plastic phases of TPVs will certainly give rise to considerable hysteresis loss and therefore deteriorate the elasticity. Herein, we proposed a facile network design strategy toward covalently cross-linked elastomer with mechanical robustness and recyclability by engineering heterogeneous blend networks into diene-rubber system. Specifically, two conventional diene-rubbers, ethylene propylene diene terpolymer (EPDM) and styrene-butadiene rubber (SBR), were adopted as thermodynamic incompatible pair and then directly admixed. Due to the significant difference in the cross-linking reactivity between the pair, the resulting system assembled into a microphase-separated structure with strong interfacial adhesion upon in situ co-cross-linking. Upon deformation, the overall chain orientation of the networks is promoted by the efficient interfacial stress transfer and a striking reinforcement of the networks is achieved accordingly. More importantly, by virtue of the slightly cross-linking attribute of EPDM component, the resulting system featured with desirable recyclability and high elasticity in comparison with conventional TPVs. We envisage that this work will provide important inspiration for the non-filling reinforcement of elastomers and the development of a new generation of thermoplastic vulcanizates with considerably low hysteresis through manipulating the covalent network heterogeneity.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
我是波少发布了新的文献求助10
刚刚
嗯嗯发布了新的文献求助10
1秒前
2秒前
小齐完成签到,获得积分10
2秒前
3秒前
科研麻瓜发布了新的文献求助10
3秒前
3秒前
bocai发布了新的文献求助10
4秒前
田様应助liuliu采纳,获得10
4秒前
自觉紫安完成签到,获得积分10
4秒前
4秒前
5秒前
5秒前
bang发布了新的文献求助10
6秒前
Deadman发布了新的文献求助10
6秒前
爱听歌土豆完成签到,获得积分10
6秒前
领导范儿应助半夜炒茄子采纳,获得30
7秒前
开心夜云发布了新的文献求助10
8秒前
南淮发布了新的文献求助10
8秒前
量子星尘发布了新的文献求助10
8秒前
8秒前
无花果应助慕月采纳,获得10
9秒前
9秒前
娜娜发布了新的文献求助10
9秒前
傲娇老五完成签到,获得积分10
9秒前
ccyh发布了新的文献求助10
10秒前
我是波少完成签到,获得积分10
10秒前
廖彬彬发布了新的文献求助10
10秒前
11秒前
11秒前
11秒前
科目三应助夨坕采纳,获得10
11秒前
冒险寻羊发布了新的文献求助10
11秒前
淀粉肠发布了新的文献求助10
12秒前
Joff_W发布了新的文献求助30
13秒前
ll应助林宥嘉采纳,获得10
13秒前
13秒前
hooo完成签到,获得积分10
14秒前
15秒前
bocai完成签到,获得积分10
15秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 360
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3971091
求助须知:如何正确求助?哪些是违规求助? 3515797
关于积分的说明 11179488
捐赠科研通 3250872
什么是DOI,文献DOI怎么找? 1795536
邀请新用户注册赠送积分活动 875891
科研通“疑难数据库(出版商)”最低求助积分说明 805207