Preparation and Characterization of Calcium/Zinc Benzoate-Castor Oleate Liquid Thermal Stabilizer

doi:10.19491/j.issn.1001-9278.2019.10.014

Abstract

Abstract: A calcium/zinc benzoate-castor oleate liquid thermal stabilizer was synthesized by using benzoic acid, castor oleic acid, zinc oxide and calcium hydroxide as raw materials and then combined with some auxiliary thermal stabilizers such as beta-dione, triphenyl phosphite and pentaerythritol. The effects of Ca/Zn ratio and the amount of auxiliary thermal stabilizers on the properties of the stabilized products were investigated. The static thermal stability was measured by a Congo red test, and the dynamic thermal stability was characterized by a torque rheometer and a twin-roll mill. The PVC samples stabilized with thermal stabilizers were also analyzed by a thermogravimetric analyzer. The results indicated that the stabilized PVC samples exhibited an optimal thermal stability at a Ca/Zn mass ratio of 3/1, a beta-dione dosage of 0.75 g, a triphenyl phosphite dosage of 10 g and a pentaerythritol dosage of 1 g. Meanwhile, their dynamic thermal and the equilibrium torque stability reached 1 180 s and 21 N·m, respectively.

Key words: poly(vinyl chloride), benzoic acid, castor oleic acid, calcium/zinc thermal stabilizer

CLC Number:

TQ325.3

YU Jing, LI Minxian, GUO Qiangqiang, CHEN Wei, JIA Xianfeng, ZHANG Ning. Preparation and Characterization of Calcium/Zinc Benzoate-Castor Oleate Liquid Thermal Stabilizer[J]. China Plastics, 2019, 33(10): 78-83.

References

[1] Dong T B, Li D G, Li Y P, et al. Design and synthesis of polyol ester-based zinc metal alkoxides as a bi-functional thermal stabilizer for poly(vinyl chloride)[J]. Polymer Degradation and Stability, 2019, 159:125-132.
[2] 康洁, 李侃社, 陈创前. 一种稀土热稳定剂的制备及其对PVC热降解性能的影响[J]. 材料科学与工程学报, 2018, 36(2): 272-277.
KANG J, LI K S, CHEN C Q. Preparation of a Rare Earth Heat Stabilizers and the Effect on Thermal Degradation of PVC[J]. Journal of Materials Science & Engineering, 2018, 36(2): 272-277.
[3] 梁坤, 李荣勋, 刘光烨. Ca/Zn复合热稳定剂的作用机理与研究进展[J]. 塑料科技, 2009, 37(8): 76-79.
Liang K, Li R X, Liu G Y. Mechanism and Research Progress of Ca/Zn Compound Heat Stabilizer[J]. Plastics Science and Technology, 2009, 37(8): 76-79.
[4] 文星, 杨占红. 水铝钙石的制备及其在PVC中的应用[J]. 塑料助剂, 2015, (2): 27-32.
WEN X, YANG Z H. Preparation and Application of Hydr℃alumites in PVC[J]. Plastics Additives, 2015, (2): 27-32.
[5] 张凯, 蒋平平, 刘洪亮, 等. 碳酸根基水铝钙石的制备及其在PVC中的应用研究[J]. 中国塑料, 2016, 30(9) : 75-81.
ZHANG K, JIANG P P, LIU H L, et al. Preparation of CO32-Based Hydr℃alumites and Its Application Research in PVC[J]. China Plastics, 2016, 30(9): 75-81.
[6] 于静, 李敏贤, 张宁. PVC用三元复合羧酸镧热稳定剂的制备及其性能研究[J]. 中国塑料, 2014, 28(12):88-93.
YU J, LI M X, ZHANG N. Preparation and Properties of Ternary Composite Carboxylic Lanthanum for PVC[J]. China Plastics, 2014, 28(12):88-93.
[7] 于晓丽, 杨占峰, 张玉玺, 等. 硬脂酸铈复合热稳定剂的制备及其在PVC建筑模板中的应用[J]. 稀土, 2018, 39(2): 18-24.
YU X L, YANG Z F, ZHANG Y X, et al. Preparation of Cerium Stearate Compound Heat Stabilizer and Application in PVC Formwork[J]. Chinese Rare Earths, 2018, 39(2): 18-24.
[8] 梁坤. 高效钙锌复合热稳定剂的研究与制备[D]. 青岛科技大学, 2010.
[9] YE F , YE Q , ZHAN H , et al. Synthesis and Study of Zinc Orotate and its Synergistic Effect with Commercial Stabilizers for Stabilizing Poly(Vinyl Chloride)[J]. Polymers, 2019, 11(2): 194.
[10] LI Y P, LI D G, HAN W Y, et al. Facile Synthesis of Di-Mannitol Adipate Ester-Based Zinc Metal Alkoxide as a Bi-Functional Additive for Poly(Vinyl Chloride) [J]. Polymers, 2019, 11(2): 813
[11] 胡程程, 陈颖, 李晓斌, 等. 氰尿酸钙/锌的制备及其在PVC制品中的应用[J]. 精细化工, 2019, 36(2): 328-335.
HU C C, CHEN Y, LI X B, et al. Preparation of Calcium/Zinc Cyanurate and Its Application in PVC Products[J]. Fine Chemicals, 2019, 36(2): 328-335.
[12] 赵朋, 蒋平平, 陈慧园, 等. 1,3-二甲基-6-氨基脲嘧啶掺杂硬脂酸钙/锌体系的协同作用研究[J]. 塑料助剂, 2014, (4):54-59.
ZHAO P, JIANG P P, CHEN H Y, et al. Synergistic Effect Research of 1,3-Dimethyl-6-aminouracil Doped with Calcium/zinc Stearate System[J]. Plastics Additives, 2014, (4):54-59.

[1]	HE Anqi, HUANG Jian, ZHANG Ying, SUN Huali, XIANG Aimin, XU Haiyun. Pressure design of chlorinated poly（vinyl chloride） pipelines in sprinkler systems and comparative analysis of domestic and foreign standards [J]. China Plastics, 2022, 36(9): 131-139.
[2]	YANG Xiaochun, YU Jing, ZHANG Qing. Effects of chitosan on thermal stability of PVC [J]. China Plastics, 2022, 36(7): 68-73.
[3]	DENG Tianxiang, XU Lina, LI Shouhai, ZHANG Yan, YAO Na, JIA Puyou, DING Haiyang, LI Mei. Research progress in grafting and crosslinking modification of PVC [J]. China Plastics, 2022, 36(5): 140-148.
[4]	TANG Yuanjun, LI Xuan, DONG Jun, LI Guoneng, LUO Guanqun, WANG Weimin, XU Yousheng. Multiscale thermogravimetric kinetics of waste polyvinyl chloride plastics [J]. China Plastics, 2022, 36(5): 89-98.
[5]	JIA Yao, ZHANG Ze, YU Zhengfa, CUI Yongyan. Preparation and secondary processing test of dynamic reversible cross⁃linked poly（vinyl chloride） [J]. China Plastics, 2022, 36(3): 82-88.
[6]	YANG Yuxuan, LIU Zhaogang, ZHAO Jingang, HUANG Xubo, CHEN Mingguang, HU Yanhong, WU Jinxiu, FENG Fushan. Synthesis of lanthanum 2，3⁃pyrazinedicarboxylic acid and its stabilizing effect on PVC [J]. China Plastics, 2022, 36(2): 103-110.
[7]	ZHANG Yaocheng, WU Yongzhen, LI Yang, ZHAO Zhu, WANG Guosheng, DING Xuejia. Gimini Quaternary Ammonium Salt⁃modified PVC⁃based Antibacterial Materials for Medical Use [J]. China Plastics, 2021, 35(7): 53-57.
[8]	LIU Xianggui, FANG Wei, SHU Hongbin, ZHENG Genwen, LIU Hai. Preparation and Performance of Hydrotalcite⁃filled PVC Composites [J]. China Plastics, 2021, 35(7): 63-68.
[9]	LI Xianming, ZHANG Ning, LIU Zhengyuan, LIU Luiyuan. Study on Synthesis and Properties of Butyl Stannate Intercalated Hydrotalcite⁃like Compound for PVC [J]. China Plastics, 2021, 35(3): 38-43.
[10]	ZHU Ruixia, GAN Lu, WU Zhixuan. Comparative Analysis of Several Common PVC Engineering Pipes for Water Supply [J]. China Plastics, 2021, 35(3): 50-58.
[11]	ZHAO Jingang, LIU Zhaogang, HAO Wei, LI Mei, HU Yanhong, WU Jinxiu, FENG Fushan, LI Shuai. Effect of Cerium P⁃methyl Benzoate on Thermal Stability of PVC [J]. China Plastics, 2021, 35(2): 14-21.
[12]	GAO Xinxin, JIANG Pingping, SHI Yimin, LENG Yan, ZHANG Pingbo. Preparation and applications of diethylene glycol ether maleate calcium/zinc heat stabilizer [J]. China Plastics, 2021, 35(12): 88-93.
[13]	HUANG Xubo, LIU Zhaogang, ZHAO Jingang, YANG Yuxuan, CHEN Mingguang, WU Jinxiu, HU Yanhong, FENG Fushan. Effect of lanthanum 2⁃benzoyl benzoate on thermal stability of PVC [J]. China Plastics, 2021, 35(12): 94-101.
[14]	WU Tingting, DENG Jianneng, LI Daobin, CAI Guoquan, DENG Shaoxin. Preparation and Application Performance of Epoxidized Neopentylglycol Dioleate [J]. China Plastics, 2021, 35(10): 114-119.
[15]	ZHANG Liang, CHAI Weisheng, WANG Shanshan, LI Wenzhu, WU Qiang, ZHANG Wenbiao, DAI Chunping. Study on Combustion Characteristics of Poly（vinyl chloride）/Bamboo Charcoal Decorative Composites [J]. China Plastics, 2021, 35(1): 37-46.