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形状记忆辅助的透明硫醇-烯涂层划痕修复

Shape-Memory Assisted Scratch-Healing of Transparent Thiol-Ene Coatings.

作者信息

Lazauskas Algirdas, Jucius Dalius, Baltrušaitis Valentinas, Gudaitis Rimantas, Prosyčevas Igoris, Abakevičienė Brigita, Guobienė Asta, Andrulevičius Mindaugas, Grigaliūnas Viktoras

机构信息

Institute of Materials Science, Kaunas University of Technology, K. Baršausko 59, LT51423 Kaunas, Lithuania.

出版信息

Materials (Basel). 2019 Feb 4;12(3):482. doi: 10.3390/ma12030482.

DOI:10.3390/ma12030482
PMID:30720764
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6385113/
Abstract

A photopolymerizable thiol-ene composition was prepared as a mixture of pentaerythritol tetrakis(3-mercaptopropionate) (PETMP) and 1,3,5-triallyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione (TTT), with 1 wt. % of 2,2-dimethoxy-2-phenylacetophenone (DMPA) photoinitiator. A systematic analytical analysis that investigated the crosslinked PETMP-TTT polymer coatings employed Fourier transform infrared spectroscopy, ultraviolet⁻visible spectroscopy, differential scanning calorimetry, thermogravimetric analysis, pencil hardness, thermo-mechanical cyclic tensile, scratch testing, and atomic force microscopy. These coatings exhibited high optical transparency and shape-memory that assisted scratch-healing properties. Scratches produced on the PETMP-TTT polymer coatings with different constant loadings (1.2 N, 1.5 N, and 2.7 N) were completely healed after the external stimulus was applied. The strain recovery ratio and total strain recovery ratio for PETMP-TTT polymer were found to be better than 94 ± 1% and 97 ± 1%, respectively. The crosslinked PETMP-TTT polymer network was also capable of initiating scratch recovery at ambient temperature conditions.

摘要

制备了一种可光聚合的硫醇-烯组合物，其为季戊四醇四(3-巯基丙酸酯)(PETMP)和1,3,5-三烯丙基-1,3,5-三嗪-2,4,6(1H,3H,5H)-三酮(TTT)的混合物，并含有1 wt.%的2,2-二甲氧基-2-苯基苯乙酮(DMPA)光引发剂。一项对交联的PETMP-TTT聚合物涂层进行的系统分析研究采用了傅里叶变换红外光谱、紫外-可见光谱、差示扫描量热法、热重分析、铅笔硬度测试、热机械循环拉伸测试、划痕测试和原子力显微镜。这些涂层表现出高光学透明度和有助于划痕修复的形状记忆性能。在施加外部刺激后，在具有不同恒定载荷(1.2 N、1.5 N和2.7 N)的PETMP-TTT聚合物涂层上产生的划痕完全愈合。发现PETMP-TTT聚合物的应变恢复率和总应变恢复率分别优于94±1%和97±1%。交联的PETMP-TTT聚合物网络在环境温度条件下也能够引发划痕恢复。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/5f400c848e33/materials-12-00482-g011.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/214bdb6eb4dd/materials-12-00482-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/7319214f900e/materials-12-00482-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/c26af974c7ab/materials-12-00482-g008.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/e5d92a580367/materials-12-00482-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/5f400c848e33/materials-12-00482-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/f8738cf0dfe8/materials-12-00482-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/00560e0cb622/materials-12-00482-sch002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/c30abcdabe12/materials-12-00482-sch003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/1f71c7cfcb74/materials-12-00482-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/74e225e071ca/materials-12-00482-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/6a1b6422dcec/materials-12-00482-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/2182e02b7bdc/materials-12-00482-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/2d16dde7b4cd/materials-12-00482-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/214bdb6eb4dd/materials-12-00482-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/7319214f900e/materials-12-00482-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/c26af974c7ab/materials-12-00482-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/455e11e8e87a/materials-12-00482-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/e5d92a580367/materials-12-00482-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec25/6385113/5f400c848e33/materials-12-00482-g011.jpg

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