| 一种用于聚氯乙烯的新型席夫碱锌络合物热稳定剂 |
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| 引用本文： | 符智民,杨占红.一种用于聚氯乙烯的新型席夫碱锌络合物热稳定剂[J].塑料助剂,2020(2):20-26. |
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| 作者姓名： | 符智民 杨占红 |
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| 作者单位： | 中南大学化学化工学院,长沙,410083;中南大学化学化工学院,长沙,410083 |
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| 摘 要： | 一种锌络合物(2-羟基亚苄基)天冬氨酸锌(Zn-HBAPA,HBAPA=(2-Hydroxybenzylidene)aspartic acid)被成功合成,通过180℃的变色和脱氢氯化试验,证明了Zn-HBAPA是可以作为聚氯乙烯(PVC)的热稳定剂助剂,在CaSt2和三(羟甲基)氨基甲烷(THAM)的协同作用下,该配方下的热稳定剂维持PVC样品的初期颜色时间可达90 min左右,并且使PVC样品完全变黑时间可长达160多分钟,该热稳定剂与CaSt2和ZnSt2具有较好的协同作用,对PVC具有良好的相容性。
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| 关 键 词： | 热稳定剂 聚氯乙烯 天冬氨酸 水杨醛 |
A New Zinc Schiff-base Complexes Thermal Stabilization for Poly(vinyl chloride) |
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| Fu Zhimin,Yang Zhanhong.A New Zinc Schiff-base Complexes Thermal Stabilization for Poly(vinyl chloride)[J].Plastic Additives,2020(2):20-26. |
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| Authors: | Fu Zhimin Yang Zhanhong |
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| Affiliation: | (College of Chemistry and Chemical Engineering,Central South University,Changsha,410083) |
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| Abstract: | A new zinc chelate stabilizer,the complex Zn-HBAPA(HBAPA=(2-hydroxybenzylidene)aspartic acid)was synthesized.We did experiments of discoloration and dehydrochlorination tests at the temperature of 180℃,and we demonstrated Zn-HBAPA can be used as a excellent long-term thermal stabilizer of PVC.Moreover,Zn-HBAPA used together with tris(hydroxymethyl)aminomethane(THAM)and CaSt2 m(PVC)=50.0 g,m(Zn-HBAPA)=0.5 g,m(THAM)=0.5 g,m(CaSt2)=0.5 g,V(dioctyl phthalate)=35 mL,it can maintain the initial color of PVC samples for 90 min and completely black time is 160 min.The thermal stabilizer has a good synergistic effect with CaSt2 and THAM,as well as a good compatibility with PVC. |
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| Keywords: | thermal stabilizer poly(vinyl chloride) aspartic acid salicylaldehyde |
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