当前位置:首页>郑州>天津大学宋健教授/郑州轻工业大学刘春森教授团队《Small》近期成果:超分子-聚合物双网络低共熔凝胶,赋能穿戴式人机交互传感器

天津大学宋健教授/郑州轻工业大学刘春森教授团队《Small》近期成果:超分子-聚合物双网络低共熔凝胶,赋能穿戴式人机交互传感器

  • 2026-03-31 10:03:56
天津大学宋健教授/郑州轻工业大学刘春森教授团队《Small》近期成果:超分子-聚合物双网络低共熔凝胶,赋能穿戴式人机交互传感器

1. 研究背景

穿戴式柔性传感器是人机交互、健康监测等领域的核心器件,但传统凝胶基传感器存在三大痛点:环境稳定性差(易失水、低温易冻结)、自修复与粘附性能不足、机械强度与导电性难以兼顾。这些局限导致传感器在动态复杂环境中易失效,无法满足长期穿戴与精准信号传输需求。亟需开发兼具快速自修复、强粘附、宽温域耐受与高传感性能的凝胶材料,填补穿戴式人机交互传感器的技术空白。

针对这一痛点,天津大学宋健教授与郑州轻工业大学刘春森教授团队提出超分子-聚合物双网络(SP-DN)设计策略,研发出叶酸(FA/[2-(甲基丙烯酰氧基)乙基]二乙基-3-磺丙基)铵盐(PMAEDS)低共熔凝胶。该凝胶以深共熔溶剂(DES)为分散介质,集成快速自修复、强粘附、宽温域耐受等多功能特性,为高性能穿戴式传感器提供全新材料方案。

2. 核心研究成果

1)创新结构与技术设计:构筑多功能体系

材料与制备工艺:凝胶采用超分子网络+聚合物网络双网络结构,FA通过分子间氢键、π-π堆积及锌离子配位形成超分子网络,PMAEDS通过紫外光聚合形成两性离子聚合物网络;分散介质为氯化胆碱(ChCl-乙二醇(EG)深共熔溶剂,避免传统水凝胶的失水问题(论文1 2.1节);

核心机制FA超分子网络赋予凝胶快速自修复与强粘附性能,PMAEDS聚合物网络提供机械支撑与离子传导通道;DES体系中的氢键与各组分间的静电作用、配位作用协同,实现网络的刚性-柔性互补(论文1 Fig. 1a2e2.1-2.2节);

多功能集成:无需额外功能层,通过双网络协同与DES特性,同步实现快速自修复、强粘附、宽温域耐受、高导电性与机械柔韧性(论文1 Scheme 12.1节)。

2)关键性能突破:传感与环境适应性双优

核心基础性能:拉伸应变达465%,应力11.5 kPa;离子电导率4.79 mS·cm¹,远高于单一PMAEDS凝胶(1.31 mS·cm¹); gauge factorGF)达4.3280%-120%应变区间),响应时间仅200 ms(论文1 Fig. 2a4ad2.2-2.3节);

自修复与粘附性能10秒内即可完成快速自修复,机械自修复效率约80%,电学自修复效率超90%;对金属、玻璃、木材、皮肤等多种基材具有强粘附性,铁基材粘附强度达16.18 kPa,且可重复粘附(论文1 Fig. 2e-f3d2.2节);

宽温域与环境稳定性:在-30℃60℃范围内保持柔性与性能稳定,-30℃时电导率仍达0.82 mS·cm¹,60℃时达9.21 mS·cm¹;空气中存放100小时重量保留率90.1%,远优于传统水凝胶(55.3%)(论文1 Fig. 1e2c2.2节);

耐用性:经100100%应变循环拉伸后,电阻变化稳定;重复粘附10次后,粘附强度无明显衰减(论文1 Fig. 4fS172.3节)。

3)多场景应用落地:覆盖核心需求

人体运动监测:传感器可直接粘附于手指、手腕、额头等部位,实时捕捉手指弯曲(0°-120°)、手腕多方向弯曲、皱眉等动作信号,区分不同运动幅度与方向(论文1 Fig. 4g-i2.3节);

人机交互:将传感器集成于手指、手腕、肘部,通过运动产生的应变信号驱动机械臂完成对应动作(手指开合、手腕旋转、肘部弯曲),实现精准远程操控(论文1 Fig. 52.3节);

复杂环境适配:在-30℃低温与60℃高温环境下,仍保持稳定的传感性能,可适配不同温域的穿戴场景(论文1 Fig. S212.3节)。

3. 图文导读

topic图FA/PMAEDS SP-DN共析凝胶的结构、性能和应用示意图

1 技术原理与材料特性

2 材料自愈合特性

3 材料黏附特性

4 材料性能测试

5 人机交互应用展示

4. 总结:应用价值与未来展望

1)核心应用价值

1. 穿戴式人机交互:用于机械臂远程操控、VR/AR设备等场景,通过捕捉人体运动信号实现精准人机联动,粘附性能确保信号传输稳定;

2. 人体运动监测:为康复训练、运动分析提供实时数据支撑,可监测手指、手腕、颈部等多部位运动,适配不同运动强度;

3. 复杂环境穿戴:宽温域耐受特性使其可在低温户外、高温作业等特殊环境中使用,解决传统传感器的环境适配局限。

2)未来优化方向

未来可以进一步优化凝胶的力学强度与长期循环稳定性;探索传感器的阵列化集成,提升多通道信号采集能力;拓展在多模态传感(压力、温度)与更复杂人机交互系统中的应用,推动穿戴式柔性电子器件的工程化落地。

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  1. CONNECT:[ UseTime:0.000929s ] mysql:host=127.0.0.1;port=3306;dbname=i460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001320s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000532s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000525s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000986s ]
  6. SELECT * FROM `set` [ RunTime:0.000494s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001229s ]
  8. SELECT * FROM `article` WHERE `id` = 485102 LIMIT 1 [ RunTime:0.000830s ]
  9. UPDATE `article` SET `lasttime` = 1776636588 WHERE `id` = 485102 [ RunTime:0.013320s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000858s ]
  11. SELECT * FROM `article` WHERE `id` < 485102 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001006s ]
  12. SELECT * FROM `article` WHERE `id` > 485102 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.005174s ]
  13. SELECT * FROM `article` WHERE `id` < 485102 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.003038s ]
  14. SELECT * FROM `article` WHERE `id` < 485102 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.005926s ]
  15. SELECT * FROM `article` WHERE `id` < 485102 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003009s ]
0.192587s