第 45 卷第 4 期 Vol. 45 No. 4 2015 年 8 月 Aug 2015

所属栏目：功能材料 木质素-FCC废催化剂复合物在丁腈橡胶中的应用研究

段锦华1，罗琼林1，彭丽敏1，王 曦1，尹笃林2，苏胜培1，2* （1. 湖南师范大学 化学化工学院 资源精细化与先进材料重点实验室，湖南 长沙 410081；2. 湖南师范大学 化学化工学院 石化新材料与资源精细利用国家地方联合工程实验室，湖南 长沙 410081）

摘　要：以木质素（Lignin）和FCC（Fluid Catalytic Cracking）废催化剂（WFCC）为原料，混合球磨制备了木质素-WFCC复合物（LWF），并将其作为填料制备了木质素-WFCC／丁腈橡胶（LWF／NBR）复合材料。探讨了在填料份数为50时，复合填料组成对NBR复合物的硫化特性、交联密度、力学性能、老化性能和玻璃化转变温度（Tg）的影响。在确定了复合填料中WFCC与木质素配比为100∶40后，研究了不同填料份数对NBR复合材料力学性能的影响。结果表明：在填料份数为50时，当m（WFCC）∶m（木质素）=100∶40时，其综合性能较好，其拉伸强度、断裂伸长率、300%定伸应力和老化后拉伸强度保持率分别为14.7 MPa、724%、3.0 MPa和74%；CLF／NBR复合材料的玻璃化转变温度显示填料与丁腈橡胶存在显著相互作用。在WFCC与木质素比例为100∶40时，填料份数为60时，复合材料拉伸强度、断裂伸长率和300%定伸应力分别达到17.1 MPa、743%和3.5 MPa。对拉伸断面的扫描电镜分析（SEM）结果表明木质素有效提高了WFCC在丁腈橡胶中的分散。

关键词：丁腈橡胶；木质素；FCC废催化剂；复合材料

中图分类号：TQ333　　文献标识码：A　　文章编号：1009-9212（2015）04-0055-06

The Application of Lignin-FCC Waste Catalyst Complex in Nitrile Butadiene Rubber

DUAN Jin-hua1, LUO Qiong-lin1, PENG Li-min1, WANG Xi1，YIN du-lin1, SU Sheng-pei1,2* (1. College of Chemistry and Chemical Engineering, Key Lab of Sustainable Resources Processing and Advanced Materials, Hunan Normal University, Changsha 410081, China; 2. College of Chemistry and Chemical Engineering, National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Changsha 410081, China)

Abstract：The lignin-WFCC/NBR composites(LWF/NBR)were prepared by mechanical blending of NBR with lignin-FCC waste catalyst complex(LWF), a mixture obtained from the lignin and FCC waste catalyst prepared by ball-milling. Effects of the different ratio of lignin to FCC waste catalys at a LWF loading of 50 phr on the curing characteristics, crosslinking densities, mechanical properties, thermo-oxidative aging properties and the glass-transition temperature(Tg)of the LWF/NBR composites were evaluated. The influence of the loading of CLF on the mechanical properties of LWF/NBR composites was also studied. The experimental results indicated that the comprehensive performance was obtained at WFCC to lignin ratio of 100 to 40 and LWF loading of 50 phr; the tensile strength, the elongation at break and the 300% modulus, the retention of tensile strength after aging of rubber composites were 14.7 MPa, 724% and 3.0 MPa, 74%, respectively; the Tg of LWF/NBR composites was increased by 6℃ compared to that of the NBR without fillers. The tensile strength, the elongation at break, and the 300% modulus of NBR composite were 17.1 MPa, 743% and 3.5 MPa, respectively at LWF loading of 60 phr, lignin to FCC waste catalyst ratio of 100∶40.

Key words：nitrile butadiene rubber; lignin; FCC waste catalyst; lignin-WFCC/NBR composite

基金项目： 湖南师范大学潇湘学者启动资金资助课题（化050613）。

作者简介：段锦华（1990-），男，湖南隆回人，硕士研究生，研究方向：高分子复合材料（E-mail：363796265@qq.com）。

联 系 人： 苏胜培，教授，博士生导师（E-mail：sushengpei@gmail.com）。

收稿日期：2015-07-0