私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

當前位置:群英聚首 > 論文著作 > 正文
Self-healing Four-Dimensional Printing with Ultraviolet Curable Double Network Shape Memory Polymer System
來源:張彪副教授個人網站 發布日期:2019-08-13
作者:B. Zhang, W. Wang, Z. Zhang, Y. Zhang, H. Hingorani, Z. Liu, J. Liu, Q. Ge
關鍵字:self-healing, shape memory polymer, 4D printing, DLP-based 3D printing, semicrystalline polymer
論文來源:期刊
具體來源:ACS Applied Materials & Interfaces
發表時間:2019年

Four-dimensional (4D) printing that enables 3D printed structures to change configurations over time has gained great attention because of its exciting potential in various applications. Among all the 4D printing materials, shape memory polymers (SMPs) possess higher stiffness and faster response rate and therefore are considered as one of most promising materials for 4D printing. However, most of the SMP-based 4D printing materials are (meth)acrylate thermosets which have permanently cross-linked covalent networks and cannot be repaired if any damage occurs. To address the unrepairable nature of SMP-based 4D printing materials, this paper reports a double-network self-healing SMP (SH-SMP) system for high-resolution self-healing 4D printing. In the SH-SMP system, the semicrystalline linear polymer polycaprolactone (PCL) is incorporated into a methacrylate-based SMP system which has good compatibility with the digital light processing-based 3D printing technology and can be used to fabricate complex 4D printing structures with high resolution (up to 30 μm). The PCL linear polymer imparts the self-healing ability to the 4D printing structures, and the mechanical properties of a damaged structure can be recovered to more than 90% after adding more than 20 wt % of PCL into the SH-SMP system. We investigated the effects of PCL concentration on the thermomechanical behavior, viscosity, and the self-healing capability of the SH-SMP system and performed the computational fluid dynamics simulations to study the effect of SH-SMP solution’s viscosity on the 3D printing process. Finally, we demonstrated the self-healing 4D printing application examples to show the merits of the SH-SMP system.


Copyright © 2005 Polymer.cn All rights reserved
中國聚合物網 版權所有
經營性網站備案信息

京公網安備11010502032929號

工商備案公示信息

京ICP證050801號

京ICP備12003651號

主站蜘蛛池模板: 丽水市| 夏河县| 江永县| 陈巴尔虎旗| 虞城县| 盐城市| 宜川县| 巍山| 饶河县| 永寿县| 玉林市| 利津县| 沛县| 庄河市| 响水县| 滦平县| 五峰| 海宁市| 衡阳县| 郯城县| 朔州市| 墨竹工卡县| 绵阳市| 竹北市| 福清市| 通许县| 宜阳县| 颍上县| 应城市| 巫山县| 千阳县| 廉江市| 丽水市| 福泉市| 永登县| 汽车| 武宁县| 海南省| 合水县| 西安市| 汤阴县|