苯甲酸-蓖麻油酸钙/锌液体热稳定剂的制备与表征

doi:10.19491/j.issn.1001-9278.2019.10.014

中国塑料 ›› 2019, Vol. 33 ›› Issue (10): 78-83.DOI: 10.19491/j.issn.1001-9278.2019.10.014

苯甲酸-蓖麻油酸钙/锌液体热稳定剂的制备与表征

于静¹,²,李敏贤^1,2,郭强强^1,2,陈伟^1,2,贾献峰^1,2,张宁¹

1. 唐山师范学院
2. 唐山市绿色专用化学品重点实验室

收稿日期:2019-07-01 修回日期:2019-07-20 出版日期:2019-10-26 发布日期:2019-10-25
基金资助:
河北省科技厅重点研发计划项目（17211411）；唐山市科技计划项目（18130224a）；唐山市科技计划项目（17110214a）

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

YU Jing^1,2, LI Minxian^1,2, GUO Qiangqiang^1,2, CHEN Wei^1,2, JIA Xianfeng^1,2, ZHANG Ning¹

1.Department of Chemistry,Tangshan Teacher College,Tangshan 063000,China:
2. Tangshan Key Laboratory of Green Specialty Chemicals,Tangshan 063000,China

Received:2019-07-01 Revised:2019-07-20 Online:2019-10-26 Published:2019-10-25
Contact: YU Jing E-mail:yeyue130@163.com

摘要/Abstract

摘要： 以苯甲酸、蓖麻油酸、氧化锌和氢氧化钙为主要原料，辅以β二酮、亚磷酸三苯酯、季戊四醇等辅助热稳定剂，制备了苯甲酸蓖麻油酸钙/锌液体热稳定剂。考察了钙锌比、辅助热稳定剂用量等因素对产品性能的影响。通过刚果红试纸法对其静态热稳定性进行测试，转矩流变仪法以及双辊开炼法对其动态热稳定性进行测试。利用热重分析仪对添加热稳定剂的聚氯乙烯（PVC）样品进行测试。结果表明，当钙锌比为3∶1，β二酮用量为0.75 g，亚磷酸三苯酯用量为10 g，季戊四醇用量为1 g时，产品对PVC的热稳定性最好，动态热稳定性可达1 180 s，平衡扭矩为21 N·m。

关键词: 聚氯乙烯, 苯甲酸, 蓖麻油酸, 钙/锌热稳定剂

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

中图分类号:

TQ325.3

于静, 李敏贤, 郭强强, 陈伟, 贾献峰, 张宁. 苯甲酸-蓖麻油酸钙/锌液体热稳定剂的制备与表征[J]. 中国塑料, 2019, 33(10): 78-83.

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.

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苯甲酸-蓖麻油酸钙/锌液体热稳定剂的制备与表征

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

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