Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, USA.
ACS Appl Mater Interfaces. 2011 Aug;3(8):3072-7. doi: 10.1021/am200584z. Epub 2011 Jul 18.
Dimethylnorbornene ester (DNE) is successfully used as a noncovalent adhesion promoter. DNE was confirmed to copolymerize with dicyclopentadiene (DCPD) to yield a copolymer with better adhesion to an EPON 828 epoxy matrix relative to poly(DCPD) alone. The mechanical properties of the copolymer were comparable to that of poly(DCPD) alone. An optimized blend of the monomers was encapsulated using a urea-formaldheyde microencapsulation procedure and the resulting capsules were used for in situ self-healing experiments. Improved healing efficiency was observed for samples containing the DCPD/DNE capsules under conditions in which the monomers were efficiently polymerized.
二甲基降冰片烯酯 (DNE) 成功地用作非共价粘附促进剂。已证实 DNE 与二环戊二烯 (DCPD) 共聚，生成的共聚物与单独的聚 DCPD 相比，对 EPON 828 环氧树脂基体具有更好的粘附性。共聚物的机械性能与单独的聚 DCPD 相当。采用脲醛微胶囊化程序封装优化的单体混合物，并用所得胶囊进行原位自修复实验。在单体有效聚合的条件下，含有 DCPD/DNE 胶囊的样品观察到了提高的愈合效率。
