作者：Yuexin Hu, Yulin Feng, Yang Jiang, Jinghua Yin, Wei Jiang
关键字：聚合物共混物, 韧性, 脆韧转变, 聚酰胺6, POE, 粒子间距
论文来源：期刊
具体来源：Journal of Applied Polymer Science, 2013, 127(2), 1069-1076
发表时间：2013年

在不同温度下研究了乙烯/1-辛烯共聚物（POE）增韧聚酰胺6（PA6）的脆韧转变行为。实验结果表明，在远低于PA6脆韧转变温度的较低温度下，临界粒子间距（IDc）与POE含量和粒子尺寸无关；但在较高温度下，尤其是接近PA6脆韧转变温度时，IDc依赖于POE粒子尺寸。这表明Wu提出的橡胶增韧判据，即IDc是基体的材料属性、与橡胶体积分数和粒子尺寸无关，在较高温度下不适用于POE增韧PA6体系的脆韧转变。

The brittle-ductile transition of ethylene/1-octene copolymer (POE) toughened polyamide 6 (PA6) was studied at various temperatures. The experimental results show that the critical interparticle distance (IDc) is independent of POE content and POE particle size at lower temperatures, that is, temperatures much lower than the brittle-ductile transition temperature of PA6. At higher temperatures, however, especially temperatures close to the transition temperature, IDc depends on the POE particle size. This indicates that Wu's criterion for rubber toughening, namely that IDc is a material property of the matrix independent of rubber volume fraction and particle size, is inapplicable at higher temperatures for the brittle-ductile transition of POE toughened PA6.

论文链接：https://doi.org/10.1002/app.37935