具有黏附性的吸能弹性体材料的合成与性能

刘莹; 张浩; 黄晓娜; 张帆; 白云刚; 周超; 徐昆; 王丕新

doi:10.14133/j.cnki.1008-9357.20230202001

具有黏附性的吸能弹性体材料的合成与性能

doi: 10.14133/j.cnki.1008-9357.20230202001

刘莹^1,,
张浩¹,
黄晓娜¹,
张帆²,
白云刚²,
周超^1, ,,
徐昆^2,,
王丕新²

1.
长春工业大学化学工程学院, 长春130012
2.
中国科学院长春应用化学研究所生态环境高分子材料重点实验室, 长春130022

基金项目: 吉林省科技发展计划项目（20220201129 GX）

详细信息

作者简介:
刘莹：刘　莹（1998—），女，硕士生，主要研究方向为吸能弹性体。E-mail：liuying@ciac.ac.cn

通讯作者:
周　超，E-mail：zhouc@ccut.edu.cn

中图分类号: TQ317.4
计量
- 文章访问数: 29
- HTML全文浏览量: 7
- PDF下载量: 7
- 被引次数: 0
出版历程
- 收稿日期: 2023-02-02
- 录用日期: 2023-04-24
- 网络出版日期: 2023-04-28

Synthesis and Properties of Energy-Absorbing Elastomer Materials with Adhesion

1.
College of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
2.
Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

摘要

摘要: 首先，以羟基封端的聚二甲基硅氧烷 (PDMS-OH)与三甲氧基硼氧六环 (TMOB)反应制备冲击硬化聚合物 (IHP)；然后，采用乙烯基封端聚二甲基硅氧烷 (viny-PDMS) 与甲基含氢硅油 (PDMS-H) 反应生成交联聚二甲基硅氧烷（交联PDMS）；再通过自由基聚合制备聚2-（（（丁基氨基）羰基）氧代）甲基丙烯酸丁酯）（PBM）。最后，以IHP、PBM和交联PDMS预聚液通过“一锅出”的方式，制备了具有黏附性的吸能弹性体材料 (IHP-EA)。其中，IHP作为其动态交联网络提供吸能特性，交联PDMS作为其稳态交联网络提供机械强度，PBM与底物形成高密度氢键提供其黏附性能。采用多种结构表征方法及性能分析手段，探讨了IHP-EA中不同组分对性能的影响。结果表明: IHP-EA在玻璃基材上的黏附强度达198 kPa，且具备良好的转移黏附和多次黏附能力；同时IHP-EA在4.43 m/s的高速冲击下可实现78.44%的能量吸收率，表现出优异的吸能减震性能。
- 界面黏附 /
- 吸能弹性体材料 /
- 减震 /
- 自愈 /
- 机械强度
Abstract: Flexible electronic devices have developed rapidly in recent years, but there are also some drawbacks such as weak interface adhesion and poor energy absorption and buffer ability. Aiming at the above defects, a series of impact hardening polymer elastomer with adhesion (IHP-EA) is designed by in situ crosslinking strategy using the combination of stable and dynamic crosslinking. Herein, the impact harden polymer (IHP) synthesized by silanol-terminated polydimethysiloxane (PDMS-OH) and trimethoxyboroxine (TMOB) constructed a dynamic crosslinking network to provide self-healing and energy absorption characteristics; the chemical crosslinked polydimethysiloxane (PDMS) network increased mechanical strength; while poly2-((((butylamino)carbonyl)oxo) methacrylate) (PBM) was prepared by free radical polymerization as an adhesion functional component to form high density hydrogen bonds with the substrate. The tensile strength and elongation at break of IHP-EA are 0.26 MPa and 177%, respectively, at strain rates of 50 mm/min. Normally, the toughness of PDMS materials rapidly decreased with the increasing of strain rate, while on the contrast, IHP-EA showed an obviously increasing toughness together with the increasing tensile rate, which indicated the significant strain rate responsiveness of IHP-EA. Therefore, IHP-EA has outstanding energy absorption and buffer effect, and the impact energy absorption efficiency could reach higher than 78% under an impact velocity of 4.43 m/s , much higher than that of conventional PDMS elastomer. In addition, IHP-EA has excellent interfacial adhesion performance, with the adhesion strength on glass substrate up to 198 kPa, almost 100 times higher than ordinary PDMS materials. In addition, IHP-EA also performed self-healing characteristic (healing efficiency exceeds 88%) and transparent performance (greater than 90%). These outstanding properties make the IHP-EA a potential candidate for application in flexible electronics and wearable protective materials.
- interface adhesion /
- energy absorbing elastomer /
- cushioning /
- self-healing /
- mechanical strength

HTML全文

图 1 (a) IHP (b)交联PDMS (c) PBM的反应方程式

Figure 1. Reaction equations of (a) IHP, (b) Crosslinked PDMS and (c) PBM

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图 2 IHP-EA的内部结构及黏附机理

Figure 2. Internal structure and adhesion mechanism of IHP-EA

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图 3 (a) IHP、PBM和IHP-EA的FT-IR谱图；(b) PBM的¹H-NMR谱图; (c) Vinyl-PDMS、PDMS-H以及交联PDMS的FT-IR谱图; (d)交联PDMS的¹H-NMR谱图; IHP-EA的(e)SEM和(f)TEM照片

Figure 3. FT-IR spectra of (a) IHP, PBM, IHP-EA and (c) crosslinking PDMS; ¹H-NMR spectra of (b) PBM and (d) crosslinking PDMS; (e) SEM and (f)TEM images of IHP-EA

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图 4 IHP-EA的(a)应力-应变曲线和 (b) 流变分析曲线

Figure 4. (a) Stress-strain curves and (b) rheological analyses of IHP-EA

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图 5 (a) 交联PDMS，IHP以及IHP-EA在玻璃基材上的黏附强度; (b) IHP-EA悬挂重物图; (c) IHP-EA在不同基材上的黏附强度; (d) IHP-EA在不同温度下的红外光谱图; (e) IHP-EA在不同恶劣条件下的黏附强度

Figure 5. (a) Adhesion strength of crosslinking PDMS, IHP, IHP-EA on glass; (b) Photos of IHP-EA suspended weights; (c) Adhesion strength of IHP-EA on different substrates; (d) FT-IR spectra of IHP-EA at different temperatures; (e) Adhesion strength of IHP-EA under different harsh conditions

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图 6 IHP-EA的(a)自愈过程、(b) 自愈机理、(c) 自愈合后的应力-应变曲线和(d) 转移黏附和多次黏附强度

Figure 6. (a) Self-healing process、 (b) self-healing mechanism、 (c) stress-strain curves and (d) transfer adhesion and multi-adhesion strength of IHP-EA

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图 7 IHP-EA的(a)能量吸收率和(b)应力-应变曲线以及(c)流变学分析

Figure 7. (a) Energy absorption rate、(b) stress-strain curves and (c) rheological analysis of IHP-EA

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