摘要
采用原位有机-无机杂化技术将纳米TiO2引入明胶体系,制备了纳米TiO2的改性蛋白材料,通过扫描电镜(SEM)发现,原位生成的TiO2颗粒直径都在100 nm左右,相对未经改性的明胶具有良好的耐热稳定性。将改性明胶应用于合成革的后整理中,且与传统酪素涂饰的成革在透湿性、表面接触角和抗菌性能等方面的比较研究,结果表明:加入改性明胶涂饰后的成革的透湿性与酪素涂饰后的成革相当;并且由于改性明胶亲水基团的增加,表面接触角与酪素的相当,降低了表面张力,改善了再涂性;经改性明胶涂饰后的合成革还具有良好的抗菌性,这是酪素所不具备的。充分说明改性明胶可以取代酪素在合成革后整理中的应用。另外,改性明胶价格低廉、易于制备,这对促进行业技术进步,提高企业经济效益都有积极的意义。
The gelatin/TiO2 organic-inorganic nano-hybrid material was prepared by in-situ nano-hybrid method and used in synthetic leather finishing. According to SEM and TG analysis, the TiO2 particles with about 100 nm were found in gelatin, and the nano-hybrid material had good thermal stability. In addition, the water vapor permeability, the surface contact angel and refinishing ability of synthetic leather finished by nano-hybrid materials showed little differences on those of synthetic leather finished by casein. Moreover, the antibacterial of nano-hybrid material was superior to the casein, which endowed the finished leather good antibacterial ability. All these results showed that the gelatin/TiO2 organic-inorganic nano-hybrid materials could replace the casein in the synthetic leather finishing and it is meaningful for improving the synthetic leather technique and heighten the economic benefit.
出处
《皮革科学与工程》
CAS
北大核心
2009年第3期15-20,37,共7页
Leather Science and Engineering
基金
浙江省重大科技攻关课题"原位杂化纳米改性高物性新型PU合成革的研究和开发"(2007C111000)
关键词
原位杂化
改性明胶
二氧化钛
合成革
后整理
酪素
in- situ nano- hybrid
modified gelatin
titanium dioxide
synthetic leather
finishing
casein
