Effect of Lanthanum Cerium 2-Aminonicotinate Acid on Thermal Stability of PVC

被引：0
作者：
Yang Y. [1 ,2 ,3 ]
Du G. [1 ,2 ,3 ]
Liu Z. [1 ,2 ,3 ]
Zhao J. [1 ,2 ,3 ]
Chen M. [1 ,4 ]
Hu Y. [1 ,2 ,3 ]
Wu J. [1 ,2 ,3 ]
Feng F. [1 ,2 ,3 ]
机构：
[1] School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Inner Mongolia, Baotou
[2] Key Laboratory of Rare Earth Hydrometallurgy and Light Rare Earth Application of Inner Mongolia Autonomous Region, Inner Mongolia, Baotou
[3] Key Laboratory of green extraction and efficient utilization of LREE resources, Ministry of education, Inner Mongolia, Baotou
[4] Baotou Research Institute of Rare Earth, Inner Mongolia, Baotou
来源：
Cailiao Daobao/Materials Reports | 2024年 / 38卷 / 07期
基金：
中国国家自然科学基金;
关键词：
degradation; lanthanum cerium 2-aminonicotinate acid; polyvinyl chloride; synergistic effect; thermal stability;
D O I：
10.11896/cldb.22060141
中图分类号：
学科分类号：
摘要：
Lanthanum cerium 2-aminonicotinate acid was synthesized from 2-aminonicotinic acid(2-ANA),Ce(NO3)3,La(NO3)3 and NaOH‧ The effects of 2-LCANA and its compound stabilizer on the thermal stability,rheological and mechanical properties of polyvinyl chloride (PVC) were studied‧ The results showed that 2-LCANA and its compound stabilizer improved the thermal stability of PVC‧ When m(2-LCANA)∶ m(ZnSt2)∶ m(PE)= 2 ∶ 1 ∶ 2,the thermal stability time was 38 min,which could reduce the loss in the processing process and enhance the mechanical properties of PVC‧ However,with the increase of temperature,2-LCANA was more effective than m(2-LCANA)∶ m(ZnSt2)∶ m(PE)= 2 ∶ 1 ∶ 2 in inhibiting the degradation of PVC‧ 2-LCANA can absorb HCl gas released from PVC degradation,generate LaCl3 and CeCl3,wea-ken the catalytic effect of HCl on PVC degradation,effectively prevent the breakage of C-Cl and C-H connected with chlorine on PVC chain,reduce the generation of conjugated double bonds,slow down PVC discoloration,and delay the thermal degradation of PVC. © 2024 Cailiao Daobaoshe/ Materials Review. All rights reserved.
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