GOALI: A Multiscale Approach on Interfacial and Structural Interlocking Between Polymer Grafted Shape Memory Pillars

GOALI:聚合物接枝形状记忆柱之间界面和结构联锁的多尺度方法

基本信息

  • 批准号:
    1105208
  • 负责人:
  • 金额:
    $ 39万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2011
  • 资助国家:
    美国
  • 起止时间:
    2011-08-15 至 2014-07-31
  • 项目状态:
    已结题

项目摘要

TECHNICAL SUMMARY:The award is based on complementary research activities, including polymer synthesis, fabrication and characterization in Yang's lab in Materials Science and Engineering (MSE) at the University of Pennsylvania (Penn), theoretical modeling at the molecular and meta-structural (ordered array) levels in Li's lab at Penn/MSE, in collaboration with Xie's lab at General Motors Global Research & Development Center (GM). It builds upon their knowledge in shape memory polymer (SMP) chemistry and surface chemistry toward robust and industrial scale adhesion. The focus of this proposal is on the fundamentally unresolved question concerning the individual and combined roles of surface chemistry, topography, and compliance on adhesion at different length scales. Specifically, the PIs plan to: (1) fabricate SMP pillar arrays with precise control over size, aspect ratio, and spacing; (2) graft well-controlled polymer brushes to manipulate molecular interactions (e.g. H-bonding and ion-pi interactions) for both bonding and debonding; (3) systematically study adhesion and peeling off on complementary SMP pillars under deformation and recovery, and (4) compare experimental results with multiscale modeling throughout each relevant lengthscale and develop a complete mechanistic view of interlocking dry adhesion. NON-TECHNICAL SUMMARY:Adhesion between polymers plays an important role in a wide range of industrial applications. Liquid based adhesives offer strong adhesion, however their thermal curing is energy intensive and the adhesion is generally not reversible. Nature provides us with remarkable examples of reversible dry adhesion as manifested in burdock seeds and gecko foot hairs, where no liquid or lengthy curing is involved in the adhesive attachment. This proposal seeks to develop biomimetic superglue-like, yet reworkable, dry adhesives. It will not only provide important scientific insights, but also impact a wide range of technologies, including electronic packaging, automotive and airplane assemblies, and soft robotics. Students at all levels will be exposed to a diverse range of topics in chemistry, materials science and engineering, soft mechanics, nanofabrication and computational modeling through new training and outreach opportunities, including summer lectures by the industrial researcher from General Motors, integration of the research outcome in courses, engagement of high school and undergraduate students through summer research and senior design projects, and industrial internship by a PhD student at General Motors Global R&D Center. The research outcome will also create a significant opportunity to excite the general public, thereby engaging their interest in Science, Technology, Engineering, and Mathematics (STEM).
技术摘要:该奖项基于互补的研究活动,包括杨在宾夕法尼亚大学(Penn)材料科学与工程(MSE)实验室的聚合物合成、制造和表征,以及Li在宾夕法尼亚大学/MSE的实验室与谢在通用汽车全球研究与开发中心(GM)的实验室合作在分子和亚结构(有序阵列)水平上的理论建模。它以他们在形状记忆聚合物(SMP)化学和表面化学方面的知识为基础,实现了坚固和工业规模的粘接。这一建议的重点是关于表面化学、地形和顺应性在不同长度尺度上的附着力的单独和联合作用的根本悬而未决的问题。具体地说,PI计划:(1)制作对尺寸、长宽比和间距进行精确控制的SMP柱阵列;(2)移植控制良好的聚合物刷子来操纵分子相互作用(例如氢键和离子-pi相互作用),从而实现键合和脱粘;(3)系统地研究变形和恢复下互补的SMP柱上的黏附和剥离;以及(4)将实验结果与各个相关长度范围的多尺度模型进行比较,并开发出互锁干黏合的完整力学观点。非技术综述:聚合物之间的粘合在广泛的工业应用中发挥着重要作用。液态胶粘剂具有很强的粘附性,但其热固化耗能大,粘接一般不可逆。大自然为我们提供了可逆的干性粘连的显著例子,如牛至种子和壁虎足毛,粘性附着中不涉及液体或长时间的固化。这项提议寻求开发仿生超级胶状但可再加工的干燥粘合剂。它不仅将提供重要的科学见解,而且还将影响广泛的技术,包括电子包装、汽车和飞机组装以及软机器人。通过新的培训和外展机会,各级学生将接触到化学、材料科学和工程、软力学、纳米制造和计算建模等一系列不同的主题,包括通用汽车工业研究员的暑期讲座、将研究成果整合到课程中、通过暑期研究和高级设计项目让高中生和本科生参与进来,以及通用汽车全球研发中心的一名博士生进行工业实习。研究成果还将创造一个重要的机会,激发公众的兴趣,从而激发他们对科学、技术、工程和数学(STEM)的兴趣。

项目成果

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Shu Yang其他文献

Energy Absorption of a Re-entrant Honeycombs with Negative Poissons Ratios
负泊松重入蜂窝的能量吸收
Phosphorylation of Connexin 43 by Cdk5 Modulates Neuronal Migration During Embryonic Brain Development
Cdk5 磷酸化 Connexin 43 调节胚胎大脑发育过程中的神经元迁移
  • DOI:
    10.1007/s12035-015-9190-6
  • 发表时间:
    2016-07
  • 期刊:
  • 影响因子:
    5.1
  • 作者:
    Qi Guang-Jian;Chen Qiang;Chen Li-Jun;Shu Yang;Bu Lu-Lu;Shao Xiao-Yun;Zhang Pei;Jiao Feng-Juan;Shi Jin;Tian Bo
  • 通讯作者:
    Tian Bo
On analyzing and predicting regional taxicab service rate from trajectory data
基于轨迹数据分析预测区域出租车服务率
Eukaryotic community composition and dynamics during solid waste decomposition
固体废物分解过程中的真核群落组成和动态
  • DOI:
    10.1007/s00253-022-11912-3
  • 发表时间:
    2022-04
  • 期刊:
  • 影响因子:
    5
  • 作者:
    Shu Yang;Lei Li;Xuya Peng;Rui Zhang;Liyan Song
  • 通讯作者:
    Liyan Song
Curcumin reverses erastin-induced chondrocyte ferroptosis by upregulating Nrf2.
  • DOI:
    10.1016/j.heliyon.2023.e20163
  • 发表时间:
    2023-10
  • 期刊:
  • 影响因子:
    4
  • 作者:
    Yizhao Zhou;Zhen Jia;Jing Wang;Shu Huang;Shu Yang;Sheng Xiao;Duo Xia;Yi Zhou
  • 通讯作者:
    Yi Zhou

Shu Yang的其他文献

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{{ truncateString('Shu Yang', 18)}}的其他基金

Causal Inference with Irregularly Spaced Observation Times
不规则间隔观察时间的因果推断
  • 批准号:
    2242776
  • 财政年份:
    2023
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant
Design, synthesis, and assembly of composite liquid crystal elastomer fibers
复合液晶弹性体纤维的设计、合成和组装
  • 批准号:
    2104841
  • 财政年份:
    2021
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant
FMRG: Threading High-Performance, Self-Morphing Building Blocks Across Scales Toward a Sustainable Future
FMRG:跨尺度构建高性能、自我变形的构建模块,迈向可持续的未来
  • 批准号:
    2037097
  • 财政年份:
    2020
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant
Planning Grant: Engineering Research Center for Convergence of Scalable and Sustainable Digital Fabrication of Smart Textiles
规划资助:智能纺织品可扩展和可持续数字制造融合工程研究中心
  • 批准号:
    1937031
  • 财政年份:
    2019
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant
Theory and Methods for Causal Inference in Chronic Diseases
慢性病因果推断的理论与方法
  • 批准号:
    1811245
  • 财政年份:
    2018
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant
EAGER/Collaborative Research: Environmentally Responsive, Water Harvesting and Self-Cooling Building Envelopes
EAGER/合作研究:环境响应、集水和自冷却建筑围护结构
  • 批准号:
    1745912
  • 财政年份:
    2017
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant
INSPIRE Track 2: Discovery and Development of Optimized Photonic Systems for High Volume, Low Surface Area Solar Energy Harvesting: Learning from Giant Clams
INSPIRE 轨道 2:发现和开发用于大容量、低表面积太阳能收集的优化光子系统:向巨蛤学习
  • 批准号:
    1343159
  • 财政年份:
    2014
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant
Programmable pattern transformation of reconfigurable polymer membranes
可重构聚合物膜的可编程图案转换
  • 批准号:
    1410253
  • 财政年份:
    2014
  • 资助金额:
    $ 39万
  • 项目类别:
    Continuing Grant
Collaborative Research: Efficient Rare Cell Capturing in Microfluidic Devices via Multiscale Surface Design
合作研究:通过多尺度表面设计在微流体装置中高效捕获稀有细胞
  • 批准号:
    1263940
  • 财政年份:
    2013
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant
EFRI-SEED: Energy Minimization via Multi-Scaler Architectures From Cell Contractility to Sensing Materials to Adaptive Building Skins
EFRI-SEED:通过多尺度架构实现能量最小化,从细胞收缩性到传感材料再到自适应建筑表皮
  • 批准号:
    1038215
  • 财政年份:
    2010
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant

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