A Literature Review on the Study of Moisture in Polymers

Trautschold, Olivia Carol¹ 

[1] Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

关键词: Analytical Chemistry;    Material Science;   

DOI  :  10.2172/1254936
RP-ID  :  LA-UR--16-23708
PID  :  OSTI ID: 1254936

学科分类：材料科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

This literature review covers the main chemical and physical interactions between moisture and the polymer matrix. Fickian versus Non-Fickian diffusion behaviors are discussed in approximating the characteristics of moisture sorption. Also, bound water and free water sorbed in polymers are distinguished. Methods to distinguish between bound and free water include differential scanning calorimetry, infrared spectroscopy, and time-domain nuclear magnetic resonance spectroscopy. The difference between moisture sorption and water sorption is considered, as well as the difficulties associated with preventing moisture sorption. Furthermore, specific examples of how moisture sorption influences polymers include natural fiber-polymer composites, starch-based biodegradable thermoplastics, and thermoset polyurethane and epoxies.