Study on lanthanum 2-aminoterephthalate as heat stabilizer for PVC
FENG Jia-meng1,2, LIU Zhao-gang1,2, FAN Jun-wei1,2, LI Mei1,2, HU Yan-hong1,2, HAO Wei1,2
1. School of Material and Metallurgy, Inner Mongolia University of Science&Technology, Baotou 014010, China; 2. Key Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources, the Ministry of Education, Baotou 014010, China
Abstract: Polyvinyl chloride (PVC) can play an irreplaceable role in many fields,but its thermal stability is poor.Therefore,heat stabilizers must be added in processing PVC.Rare earth-based heat stabilizers have the characteristics of nontoxic,environmental friendly and good compatibility with PVC.Lanthanum aminoterephthalate (LAT) is synthesized with lanthanum chloride,ammonia water and 2-aminoterephthalic acid as raw materials.The synthesized products are characterized by elemental analysis and IR.Respective effects of single stabilizer and composite stabilizers on the thermal stability of PVC are studied through Congo red experiment and discoloration experiment by combining LAT with other traditional stabilizers.The results show that the thermal stability of PVC does not improve greatly when LAT is used as PVC stabilizer alone.The best composite stabilizer is obtained by mixing LAT with zinc stearate and pentaerythritol,which can make PVC have good color resistance and long-term thermal stability.
冯佳萌, 柳召刚, 范俊伟, 李梅, 胡艳宏, 郝伟. 2-氨基对苯二甲酸镧作为PVC热稳定剂的研究[J]. 现代化工, 2020, 40(3): 97-102.
FENG Jia-meng, LIU Zhao-gang, FAN Jun-wei, LI Mei, HU Yan-hong, HAO Wei. Study on lanthanum 2-aminoterephthalate as heat stabilizer for PVC. Modern Chemical Industry, 2020, 40(3): 97-102.
[1] 于淑娟,陆树文,罗振静,等.一种复合型光稳定剂的合成及其在PVC材料中的应用[J].塑料科技,2017,45(2):81-85. [2] 孙宏达,张国栋,邱月,等.PVC热稳定剂的研究现状及发展趋势[J].辽宁化工,2017,46(6):600-602. [3] Li D,Xie L,Fu M,et al.Synergistic effects of lanthanum-pentaerythritol alkoxide with zincstearates and with β-diketone on the thermal stability of poly(vinyl chloride)[J].Polymer Degradation & Stability,2015,114(1):52-59. [4] Fang L,Song Y,Zhu X,et al.Influence of lanthanum stearate as a co-stabilizer on stabilization efficiency of calcium/zinc stabilizers to polyvinyl chloride[J].Polymer Degradation & Stability,2009,94(5):845-850. [5] 杨占峰,张玉玺,于晓丽,等.一种新型稀土复合热稳定剂在PVC型材中的应用研究[J].稀土,2016,3(6):46-51. [6] 石孟孟.稀土芳香羧酸配位聚合物微纳米结构的合成、表征及其性能研究[D].南昌:江西师范大学,2015. [7] Xie L,Li D,Zhang J.The effect of pentaerythritol-aluminum on the thermal stability of rigid poly(vinyl chloride)[J].Journal of Applied Polymer Science,2014,130(5):3704-3709. [8] 李梅,姜在勇,柳召刚,等.镧铈稀土PVC热稳定剂的制备及性能研究[J].塑料科技,2013,41(1):101-104. [9] 于静,李敏贤,李德玲.羧酸对复合羧酸镧热稳定剂性能的影响[J].中国稀土学报,2015,33(1):60-65. [10] 李先铭,张宁.PVC硬脂酸轻稀土热稳定剂的复配与应用研究[J].中国稀土学报,2015,33(3):349-354. [11] 施珣若.PVC塑料助剂的现状和展望[J].橡塑技术与装备,2016,(18):10-16. [12] Wang M,Xia J,Jiang J,et al.A novel liquid Ca/Zn thermal stabilizer synthesized from tung-maleic anhydride and its effects on thermal stability and mechanical properties of PVC[J].Polymer Degradation & Stability,2016,133:136-143. [13] 聂小安,夏建陵,沈卫锋,等.环保型钙/锌PVC热稳定剂的发展现状[J].生物质化学工程,2011,45(1):41-46. [14] Liu Y B,Liu W Q,Hou M H.Metal dicarboxylates as thermal stabilizers for PVC[J].Polymer Degradation & Stability,2007,92(8):1565-1571. [15] Es D S V,Steenwijk J,Frissen G E,et al.The compatibility of (natural) polyols with heavy metal- and zinc-free poly(vinyl chloride):Their effect on rheology and implications for plate-out[J].Polymer Degradation & Stability,2008,93(1):50-58. [16] 许家友,谢琼,龙金风,等.多元醇对PVC热稳定和色泽的影响[J].塑料,2011,40(4):75-77. [17] 陈焕章,李花,李宏,等.季戊四醇锌热稳定剂的制备与应用[J].中国塑料,2015,29(10):78-82. [18] Li M,Liang Y D,Wu Y X,et al.Synergistic effect of complexes of ethylenediamine double maleamic acid radical and lanthanum(Ⅲ) with pentaerythritol on the thermal stability of poly(vinyl chloride)[J].Polymer Degradation & Stability,2017,140:176-193. [19] Politi L S,Godi C,Cammarata G,et al.A novel zinc-containing additive for the long-term thermal stabilization of poly(vinyl chloride)[J].Polymer Degradation & Stability,2014,107(4):113-119. [20] 王晓萌.热稳定体系研究及其对PVC综合性能的影响[D].北京:北京化工大学,2017. [21] 崔小明.PVC稀土热稳定剂的作用机理及应用研究进展[J].精细与专用化学品,2015,23(9):44-47.