公开(公告)号：US09193580B1

公开(公告)日：2015-11-24

申请号：US14531843

申请日：2014-11-03

Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.

Inventor： Henry A. Sodano ,  Aneesh K. Venkata

IPC: B81B3/00 ,  B81C1/00 ,  B81C3/00

CPC classification number: B81B3/0021 ,  B81B2201/032 ,  B81C1/0019 ,  B81C3/005 ,  G01P15/0922 ,  H01L41/1136 ,  H01L41/31 ,  H02N2/18

Abstract: A nano-electromechanical system comprises piezoelectric vertically aligned BaTiO3 nanowire arrays for energy-harvesting applications, sensors, and other applications. The aligned piezoelectric nanowire arrays provide highly accurate nano-electromechanical system-based dynamic sensor with a wide operating bandwidth and unity coherence and energy harvesters at low frequencies. The growth of vertically aligned (B45-mm long) barium titanate nanowire arrays is realized through a hydrothermal synthesis.

Abstract translation: 纳米机电系统包括用于能量收集应用，传感器和其它应用的压电垂直排列的BaTiO3纳米线阵列。 对准的压电纳米线阵列提供高精度的基于纳米机电系统的动态传感器，具有宽的工作带宽和低频的单位相干和能量收集器。 通过水热合成实现垂直取向（B45-mm）钛酸钡纳米线阵列的生长。

公开(公告)号：US10202484B2

公开(公告)日：2019-02-12

申请号：US15157839

申请日：2016-05-18

Applicant: University of Florida Research Foundation, Inc.

Inventor： Henry A. Sodano ,  Yunseon Heo

IPC: C08G18/38 ,  C08G18/32 ,  C08G18/08 ,  C08G18/78 ,  C08J5/04 ,  C08J5/18 ,  C09D175/04

Abstract: A shape-memory self-healing polymeric network (SMSHP) is useful as a molded part, a coating, or as a matrix for a composite that can be repaired by heating to a controlled temperature. The SMSHP has thermally reversible repeating units where a thermally reversible adduct is situated between two common linking units formed during a polymerization process between thermally reversible monomers and cross-linking monomers. Optionally, other repeating units can be present from other monomers. Shape-memory results when the SMSHP is warmed to a temperature in excess of its glass transition temperature and self-healing then proceeds when a higher temperature is achieved where thermally reversible adducts dissociates to complementary groups that subsequently reform the adduct without distortion of the memorized shape. The thermally reversible adducts can be Diels-Alder (DA) adducts in a polyurethane, poly urea, or amine epoxy SMSHP network.

公开(公告)号：US20170008998A1

公开(公告)日：2017-01-12

申请号：US15157839

申请日：2016-05-18

Applicant: University of Florida Research Foundation, Inc.

Inventor： Henry A. Sodano ,  Yunseon Heo

IPC: C08G18/38 ,  C09D175/04 ,  C08J5/04 ,  C08J5/18 ,  C08G18/08 ,  C08G18/78

CPC classification number: C08G18/3846 ,  C08G18/0895 ,  C08G18/3206 ,  C08G18/3278 ,  C08G18/3819 ,  C08G18/7893 ,  C08G2280/00 ,  C08J5/042 ,  C08J5/18 ,  C08J2375/04 ,  C09D175/04

Abstract: A shape-memory self-healing polymeric network (SMSHP) is useful as a molded part, a coating, or as a matrix for a composite that can be repaired by heating to a controlled temperature. The SMSHP has thermally reversible repeating units where a thermally reversible adduct is situated between two common linking units formed during a polymerization process between thermally reversible monomers and cross-linking monomers. Optionally, other repeating units can be present from other monomers. Shape-memory results when the SMSHP is warmed to a temperature in excess of its glass transition temperature and self-healing then proceeds when a higher temperature is achieved where thermally reversible adducts dissociates to complementary groups that subsequently reform the adduct without distortion of the memorized shape. The thermally reversible adducts can be Diels-Alder (DA) adducts in a polyurethane, poly urea, or amine epoxy SMSHP network.

Abstract translation: 形状记忆自愈聚合物网络（SMSHP）可用作可通过加热至受控温度修复的复合材料的模制部件，涂层或基质。 SMSHP具有热可逆重复单元，其中热可逆加合物位于在热可逆单体和交联单体之间的聚合过程期间形成的两个共同连接单元之间。 任选地，其它重复单元可以来自其它单体。 当SMSHP升温到超过其玻璃化转变温度的温度时，形状记忆的结果，然后在达到更高的温度时进行自愈合，其中热可逆加合物解离成互补基团，随后改性加合物，而不会使记忆形状变形 。 热可逆加合物可以是聚氨酯，聚脲或胺环氧SMSHP网络中的Diels-Alder（DA）加合物。