第 46 卷第 4 期Vol. 46 No. 4
2016 年 8 月Aug 2016

所属栏目:功能材料

钙基复合AC发泡剂在N-PCB/PVC复合材料中的应用
段锦华1,黄 骅1,罗琼林1,曹理朝1,杨 治2,彭梅醒2,刘连斌3,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. 湖南天仁科技实业发展有限公司,湖南 临澧 415000;3. 湖北天乐新材料有限公司,湖北 荆州 434300)
摘 要:以钙基复合物、发泡剂AC、Pb-Ba稳定剂、E-44和N-PCB为原料,通过共混制备了钙基复合发泡剂,并将其与N-PCB/PVC复合材料进行共混挤出,制备了复合发泡材料。研究了配方及工艺等因素对复合发泡材料的密度、泡孔形貌及力学性能的影响。结果表明:当E-44、CPE及N-PCB用量分别为6、20及100份时,高填充的N-PCB/PVC复合材料的综合性能最佳;当m(钙基复合物)∶m(发泡剂AC)∶m(Pb-Ba稳定剂)∶m(E-44)∶m(N-PCB)=15∶1∶1∶0.1∶1时,钙基复合发泡剂分解时吸收与放出的热量基本达到平衡;制备的复合发泡材料,将密度由1.4 g/cm3降低到0.9 g/cm3,为大量回收利用N-PCB提供了一条有效的新途径。
关键词:N-PCB;PVC;高填充;吸放热型发泡剂
中图分类号:TQ314.259  文献标识码:A  文章编号:1009-9212(2016)04-0055-10
Appication of A Calcium Chemicals Based AC Foaming Agent in N-PCB/PVC Composites
DUAN Jin-hua1, HUANG Hua1, LUO Qiong-lin1, CAO Li-chao1, YANG Zhi2, PENG Mei-xing2, LIU Lian-bian3, 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. Hunan Tianren Scientific & Industrial Co., Ltd. Changde 415000, China; 3. Hubei Tianle New Materials Co., Ltd., Jingzhou 434300, China)
Abstract:The foamed composites were prepared by twin-screw extruder with N-PCB/PVC composites and Calcium matrix composite foaming agent prepared by Calcium matrix composites, Azobisformamide, Pb-Ba stabilizer, E-44 and N-PCB. The effects of formula and process on the density,cell structure and mechanical properties of foamed composites were studied. The experimental results showed that the best comprehensive performance of N-PCB/PVC composites were obtained when the loading of E-44, CPE and N-PCB were 6, 20 and 100 phr, respectively. The Calcium matrix composite foaming agent was a kind of endo-exo thermic balanced foaming agent when Calcium matrix composites:Azobisformamide:Pb-Ba stabilizer:E-44:N-PCB=15:1:1:0.1:1. The density of foamed composites was decreased from 1.4 g/cm3 to 0.9 g/cm3 and we have successfully provided an effective and new way for recycling N-PCB.
Key words:N-PCB; PVC; high filling; endo-exothermic blowing agents
基金项目: 湖南省战略科兴产业科技攻关项目资助(S2014G217K)。
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: 2016-08-1