华东理工大学学报（自然科学版）2017，Vol.43Issue(3)：346-351,6.DOI:10.14135/j.cnki.1006-3080.2017.03.008
PHBV在玻璃化转变温度以上的物理老化行为
Physical Aging Behavior of Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) above Tg
耿悦 1陆冲 1汪汉奇 1李勇锋 2张宇2
作者信息
- 1. 华东理工大学材料科学与工程学院,上海200237
- 2. 上海博疆新材料科技有限公司,上海201318
- 折叠
摘要
Abstract
The changes of thermal and tensile properties of the pure poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and PHBV containing boron nitride (BN) with aging time at 30 ℃ (above Tg) were studied.The mobile amorphous fraction (XMA),rigid amorphous fraction (XRA) and crystalline fraction (Xc) of PHBV were determined by modulated differential scanning calorimetry (MDSC) according to the polymer three-phase model.Results showed that addition of nucleating agent approach represented an efficient strategy to suppress the physical aging process of PHBV which was further confirmed by the dynamic mechanical and tensile properties data, as well as the crystal morphology.关键词
PHBV/物理老化/热性能/弹性性能/聚合物三相模型Key words
PHBV/physical aging/thermal properties/tensile properties/polymer three-phase model分类
化学化工引用本文复制引用
耿悦,陆冲,汪汉奇,李勇锋,张宇..PHBV在玻璃化转变温度以上的物理老化行为[J].华东理工大学学报（自然科学版）,2017,43(3):346-351,6.
