新型PVC环保热稳定剂:有机改性的肉桂酸插层钙铝水滑石  

A novel eco-friendly thermal stabilizer for PVC:Organically modified cinnamateintercalated calcium aluminum hydrotalcite

作　　者：梅雪 蒋平平 张萍波 曹瑞洪 曹艺 Mei Xue;Jiang Pingping;Zhang Pingbo;Cao Ruihong;Cao Yi(School of Chemistry and Materials Engineering,Jiangnan University,Wuxi,Jiangsu 214122,China;Jiangsu Geruiya New Materials Technology Co.,Ltd.,Jiangyin,Jiangsu 214423,China)

机构地区：[1]江南大学化学与材料工程学院,江苏无锡214122 [2]江苏格瑞亚新材料科技有限公司,江苏江阴214423

出　　处：《塑料助剂》2024年第3期1-5,共5页Plastics Additives

摘　　要：用表面改性剂十二烷基硫酸钠(SDS)对肉桂酸插层钙铝水滑石进行改性,采用红外分析、XRD分析对合成产物进行分析表征,证实成功合成了产物。并将改性水滑石应用到PVC中进行热老化烘箱测试、热重测试、电导率测试等热稳定性能测试,结果表明:PVC试样直到120 min才完全变黑,并且热失重率低,能有效吸收PVC热降解产生的HCl。与市售硬脂酸钙/锌热稳定剂相比,改性后的肉桂酸插层钙铝水滑石热稳定剂,无毒环保,性能优异,具有发展潜力。The surface modifier sodium dodecyl sulfate(SDS)was used to modify cinnamate-intercalated calcium aluminum hydrotalcite.The product was characterized by infrared analysis and XRD analysis,confirming the successful synthesis of the product.The modified hydrotalcite was applied to PVC for thermal stability tests such as thermal aging oven test,thermogravimetric test,conductivity test,etc.The results showed that PVC sample did not completely turn black until 120 min,and the thermogravimetric rate was low,which could effectively absorb the HCL produced by PVC thermal degradation.Compared with the commercial thermal stabilizer calcium stearate/zinc,the modified cinnamate-intercalated calcium aluminum hydrotalcite thermal stabilizer was non-toxic and environmentally friendly,and had excellent performance and development potential.

关 键 词：十二烷基硫酸钠 水滑石 有机改性 聚氯乙烯 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]