透明尼龙PA6T/6I的黄变及透明性能研究  

Study on Yellowing Resistance and Transparency of Transparent Nylon PA6T/6I

作　　者：倪金平 路丹 郑振伟 陈林飞 卢光明 汤兆宾[2] NI Jin-ping;LU Dan;ZHENG Zhen-wei;CHEN Lin-fei;LU Guang-ming;TANG Zhao-bin(ZheJiang Shiny New Materials Co.,Ltd.,Wenzhou 325000,China;Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China)

机构地区：[1]浙江新力新材料股份有限公司,浙江温州325000 [2]中国科学院宁波材料技术与工程研究所,浙江宁波315201

出　　处：《塑料工业》2020年第12期62-65,共4页China Plastics Industry

基　　金：浙江省重点研发计划(2020C01140)。

摘　　要：采用不同抗氧剂体系(1098,168,H10,受阻酚与亚磷酸酯复配抗氧剂A和B)对透明尼龙PA6T/6I进行多次挤出改性,利用透光率/雾度测试仪、分光测色仪、热失重分析等研究了抗氧剂对PA6T/6I的黄变、透明性及热稳定性的影响。结果表明,抗氧剂的引入提高了PA6T/6I的透光率和黄变性能,有机抗氧体系明显降低尼龙的雾度,而无机抗氧剂H10增加了尼龙的雾度;复配抗氧剂B改性的PA6T/6I在五次挤出前后透光率保持85%,雾度保持在9.3%,色差(ΔE)保持3.0,比传统抗氧剂1098/168复配体系在多次加工过程中表现出更佳的透明和颜色稳定性。Transparent nylon(PA)6T/6I were modified with different antioxidant systems(1098,168,H10,blocked phenol and phosphite complex antioxidant A and B)by physical blending method.The effect of antioxidant on the yellowing index,transparency and heat stability of PA6T/6I were studied by transmittance/haze test,spectrophotometer,thermogravimetric analysis and so on.The experimental results indicate that the yellowing resistance and the transparency of PA6T/6I are significantly improved with the addition of antioxidants.The organic antioxidant system significantly decreases the haze of nylon and the inorganic antioxidant H10 has increased the haze of nylon.The transparency for five extrusion of the PA6T/6I compounded with antioxidant B could maintain 85%and the haze could maintain 9.3%,the color difference value(ΔE)could maintain 3.0.It shows better transparency and color stability than traditional antioxidant 1908/168 compounded system in the multiple processing.

关 键 词：尼龙6T/6I 抗氧剂 透明性 黄变 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]