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.

引用

共 23 条

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[22] Vrandecic N S, Klaric I, Roje U., Polymer Degradation & Stability, 74, 2, (2001)
[23] Xu X P., Design,preparation,application and stabilizing mechanism of urea derivatives as novel thermal stabilizers for poly(vinyl chloride), (2015)

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