Preparation and characterization of sponge film made from feathers.
Preparation and characterization of sponge film made from feathers.
复制标题
DOI：
10.1016/j.msec.2013.07.032
复制
发表时间：
2013-12
期刊：
影响因子：
--
通讯作者：
Yuan Zhuang;Xiaoqian Wu;Zhang-Jun Cao;Xiaoxiang Zhao;Mei-hua Zhou;Pin Gao
中科院分区：
文献类型：
--
作者：
Yuan Zhuang;Xiaoqian Wu;Zhang-Jun Cao;Xiaoxiang Zhao;Mei-hua Zhou;Pin Gao
家禽养殖场产生的羽毛废物会造成处理问题，但它们是角蛋白的可持续资源。还原法是从羽毛中提取可溶性角蛋白的常用方法之一。然而，羽毛还原反应过程中产生的残留物很少被研究。在这项研究中，残留物转化成一个多孔和灵活的海绵膜冷冻干燥，而无需预处理或添加交联剂。甘油被用来改变海绵膜的物理和化学特性。用纤维强伸仪、傅里叶变换红外分光光度计、扫描电镜、元素分析仪、差示扫描量热仪和自动透气仪对薄膜进行了表征。最佳甘油含量的海绵膜拉伸强度为6.2MPa，熔点为170 °C。由于透气性为368 mm/s，该膜可潜在地应用于医学、生物、纺织、环境技术等。它是生态友好的，并且将从可再生材料中产生额外的效益。该膜被用来作为吸附剂，以消除Cr（VI）从水溶液中，并作为空气污染的过滤材料。其对Cr（VI）的最大吸附量为148.8mg/g，对PM10的去除率为98.3%。
Feather wastes generated from poultry farms will pose a problem for disposal, but they are sustainable resources of keratin. Reduction is one of the commonly used methods to obtain soluble keratin from feather. However, the residues generated during feather reduction reaction were rarely investigated. In this study, the residues were transformed into a porous and flexible sponge film by freeze-drying without pretreatment or addition of cross-linking agents. Glycerol was used to alter the physical and chemical characteristics of the sponge film. The film was characterized with a fiber strong stretch instrument, a Fourier transform infrared spectrophotometer, scanning electron microscopy, an elemental analyzer, a differential scanning calorimeter and an automatic air permeability apparatus. Tensile strength and melting point of the sponge film with the optimum glycerol content were 6.2 MPa and 170 °C respectively. Due to air permeability of 368 mm/s, the film can potentially be used in medicine, biology, textile, environmental technology, and so on. It is ecologically friendly and will produce additional benefits from the renewable materials. The film was utilized as adsorbents to remove Cr(VI) from aqueous solutions and as a filtering material for air pollution. Its maximum Cr(VI) uptake capacity was about 148.8 mg/g and the removal rate of PM10was 98.3%.