Partially crystalline epoxy networks with superior mechanical and adhesion properties
Partially crystalline epoxy networks with superior mechanical and adhesion properties
复制标题
DOI：
10.1080/01694243.2015.1132577
复制
发表时间：
2016-05-02
影响因子：
2.3
通讯作者：
Hartwig, Andreas
中科院分区：
文献类型：
--
作者：
Arnebold, Andre;Wellmann, Stefanie;Hartwig, Andreas
介绍了阳离子聚合的部分结晶环氧树脂网络的力学和粘接性能。为此，反应性和非反应性聚（ε-己内酯）（PCL）分别用作形成共聚物和聚合物合金的结晶组分。一方面韧性与另一方面玻璃化转变温度和机械强度之间的折衷可以通过纳米结构与小晶畴（< 1 μ m）的组合的存在而降低，如在环氧/PCL基聚合物合金的情况下。这种结构-性能关系表明，一定程度的结晶度导致阳离子聚合的环氧树脂网络的韧性增强。
The mechanical and adhesion behavior of cationically polymerized, partially crystalline epoxy networks is presented. For this, a reactive and a nonreactive poly(e-caprolactone) (PCL) were used as the crystalline component for the formation of copolymers and polymer alloys, respectively. The trade-off between toughness on the one hand and glass transition temperature and mechanical strength on the other can be reduced by the presence of nanostructures in combination with small crystalline domains (< 1 mu m), as in the case of epoxy/PCL-based polymer alloys. This structure-property relationship reveals that a certain degree of crystallinity leads to enhanced toughness in cationically polymerized epoxy networks.