反应挤出制备硫化镉/尼龙6纳米复合材料  

Preparation and Characterization of CdS/PA6 Nanocomposites by Reactive Extrusion

作　　者：夏厚胜[1,2] 李兰杰 杨桂生[1,2] 

机构地区：[1]上海杰事杰新材料(集团)股份有限公司,上海201109 [2]浙江大学高分子科学与工程系,杭州310027

出　　处：《上海塑料》2015年第1期63-69,共7页Shanghai Plastics

基　　金：上海市闵行区产学研合作计划项目(2014MH126)

摘　　要：采用反应挤出工艺双原位法制备硫化镉/尼龙6（CdS/PA6）纳米复合材料。CdS/PA6纳米复合材料由硫镉矿型CdS和粘均分子量在（2.4-5.6）×10^4 g/mol的尼龙6基体组成。低CdS含量时,纳米CdS晶体（6.2-9.7 nm）聚集形成15-50 nm的松散的团聚体,均匀的分散于尼龙6基体。较高CdS含量时,CdS/PA6纳米复合材料总体分散性较好,但存在一些由纳米CdS晶体融合成的紧密的团聚体（约100 nm）。将含14.1%（质量分数）CdS的CdS/PA6纳米复合材料用作色母料与商品尼龙6树脂熔融共混,可以生产出颜色均匀、色差极低的黄色制品。The reactive extrusion process was adopted to synthesize CdS/PA6 nanocomposites by continuous anionic polymerization of the as-synthesized CdS/NaC1/CPL in a twin-screw extruder. The CdS/PA6 nanocomposites consist of greenockite-type CdS nanofiller with average crystal size of 6-11 nm and PA6 matrix with viscosity-average molecular weight of （2.4-5.6） ×10^4 g/tool. The CdS nanocrystals are loosely assembled to soft agglomerates （15-50 nm） which are homogeneously distributed in the PA6 matrix for the nanocomposites with low CdS content. With increase of CdS, a few hard agglomerates （ca. 100 nm） appear, but all in all the prepared nanocomposites even at high CdS loading still have excellent dispersion. Finally, the CdS/PA6 nanocomposite containing 14.1wt% of CdS was used as color masterbatch to melting blend with commercial PA6 resin. Each of the final products shows uniform appearances and has negligible color differences.

关 键 词：纳米硫化镉 尼龙6 纳米复合材料 反应挤出 母粒 

分 类 号：TB332[一般工业技术—材料科学与工程]