石榴籽抗氧剂对聚丙烯抗氧化性能的研究
|
摘要
以饮料厂加工废弃物中的石榴籽为原料,提取其抗氧化活性物质,作为聚丙烯(PP)的抗氧剂。试样经过室内热氧老化,并对老化前后试样进行微量混合流变、氧化诱导时间、差示扫描量热分析、力学性能测试、投射电镜等分析判断石榴籽抗氧剂(PSA)对PP试样抗氧化程度的影响。结果表明,PSA可使PP试样流变扭矩与氧化诱导时间增大,对PP有一定的抗氧化作用;差示扫描量热(DSC)分析可知,PSA的加入不会对PP热性能以及结晶能力产生影响;经室内热氧老化后,PSA可有效保持PP各项力学性能,PSA质量分数为0.5%时抗氧化效果最佳。
Using pomegranate seed as raw material in the processing waste of beverage factory, the antioxidant substance was extracted as the antioxidant of polypropylene( PP). Before and after indoor thermal oxidative aging,the effects of pomegranate seed antioxidant( PSA) on the antioxidant properties of PP were studied by rheological, oxidation induction time, differential scanning calorimetry( DSC), mechanical properties and transmission electron microscope( TEM). Experimental results indicate that PSA can increased the rheological torque and oxidation induction time of PP,and it has a certain antioxidant effect on PP. The DSC results shows that the addition of PSA has no effect on the thermal properties and crystallization ability of PP. PSA could effectively maintain the mechanical properties of PP after aging, and the best antioxidant effect is obtained when the amount of PSA is 0. 5 wt%.
Using pomegranate seed as raw material in the processing waste of beverage factory, the antioxidant substance was extracted as the antioxidant of polypropylene( PP). Before and after indoor thermal oxidative aging,the effects of pomegranate seed antioxidant( PSA) on the antioxidant properties of PP were studied by rheological, oxidation induction time, differential scanning calorimetry( DSC), mechanical properties and transmission electron microscope( TEM). Experimental results indicate that PSA can increased the rheological torque and oxidation induction time of PP,and it has a certain antioxidant effect on PP. The DSC results shows that the addition of PSA has no effect on the thermal properties and crystallization ability of PP. PSA could effectively maintain the mechanical properties of PP after aging, and the best antioxidant effect is obtained when the amount of PSA is 0. 5 wt%.
引文
[1]FINTZOU A T,BADEKA A V,KONTOMINAS M G,et al.Changes in physicochemical and mechanical properties of gamma-irradiated polypropylene syringes as a function of irradiation dose[J].Radiat Phys Chem,2006,75(1):87-97.
[2]GEORGE W.材料自然老化手册[M].3rd ed.马艳秋,王仁辉,刘树华等译,北京:中国石化出版社,2002.
[3]王世琴,马玉刚,陈小平.聚丙烯老化及抗氧剂的应用和发展[J].上海塑料,2011(1):1-4.
[4]刘海林,伍玉娇,杨春平.聚丙烯材料老化性能研究进展[J].塑料科技,2014(9):117-120.
[5]马少波,郑亚兰,吴晓妮,等.塑料抗氧剂的研究和发展趋势[J].塑料科技,2015(1):100-103.
[6]李杰时,李惜,岳慧慧.塑料制品的安全和环保要求与抗氧剂的选择和应用[J].塑料助剂,2014(4):21-26.
[7]刘志刚,王志伟.塑料包装材料化学物向食品迁移的模型研究[J].材料科学与工程,2007,23(5):19-23.
[8]胡法,杨勇,者东海,等.塑料食品包装材料化学物迁移的分析方法发展动态[J].塑料工业,2011,39(8):18-21.
[9]郑秋闿,刘飞跃,许凯,等.迷迭香抗氧剂对聚丙烯的抗氧化作用[J].中国塑料,2009(8):83-86.
[10]PIERFRANCESCO C,MARIO M,JOZEF R,et al.Effect of natural antioxidants on the stability of polypropylene films[J].Polym Degrad Stab,2009,94(5):2095-2100.
[11]AMBROGI V,CARFAGNA P,MALINCONICO M,et al.Natural antioxidants for polypropylene stablilzation[J].Polym Degrad Stab,2011,96(8):2152-2158.
[12]GREGOROVA,CIBULKOVZ,KOKOVB,et al.Stabilization effect of lignin in polypropylene and recycled polypropylene[J].Polym Degrad Stab,2005,89:553-558.
[13]郑秋闿,范晶晶,王林同,等.二氢杨梅素对高分子材料的抗氧化作用[J].化学通报,2015,78(3):254-258.
[14]FU L,XU B T,XU X R,et al.Antioxidant capacities and total phenolic contents of 62 fruits[J].Food Chem,2011,129:345-350.
[15]葛铁军,刘禹.聚丙烯耐老化改性研究[J].塑料科技,2015,43(7):70-74.
[16]张金柱,汪信,陆路德,等.纳米无机粒子对塑料增强增韧的裂缝与银纹相互转化机理[J].工程塑料应用,2003,31(1):20-22.
[2]GEORGE W.材料自然老化手册[M].3rd ed.马艳秋,王仁辉,刘树华等译,北京:中国石化出版社,2002.
[3]王世琴,马玉刚,陈小平.聚丙烯老化及抗氧剂的应用和发展[J].上海塑料,2011(1):1-4.
[4]刘海林,伍玉娇,杨春平.聚丙烯材料老化性能研究进展[J].塑料科技,2014(9):117-120.
[5]马少波,郑亚兰,吴晓妮,等.塑料抗氧剂的研究和发展趋势[J].塑料科技,2015(1):100-103.
[6]李杰时,李惜,岳慧慧.塑料制品的安全和环保要求与抗氧剂的选择和应用[J].塑料助剂,2014(4):21-26.
[7]刘志刚,王志伟.塑料包装材料化学物向食品迁移的模型研究[J].材料科学与工程,2007,23(5):19-23.
[8]胡法,杨勇,者东海,等.塑料食品包装材料化学物迁移的分析方法发展动态[J].塑料工业,2011,39(8):18-21.
[9]郑秋闿,刘飞跃,许凯,等.迷迭香抗氧剂对聚丙烯的抗氧化作用[J].中国塑料,2009(8):83-86.
[10]PIERFRANCESCO C,MARIO M,JOZEF R,et al.Effect of natural antioxidants on the stability of polypropylene films[J].Polym Degrad Stab,2009,94(5):2095-2100.
[11]AMBROGI V,CARFAGNA P,MALINCONICO M,et al.Natural antioxidants for polypropylene stablilzation[J].Polym Degrad Stab,2011,96(8):2152-2158.
[12]GREGOROVA,CIBULKOVZ,KOKOVB,et al.Stabilization effect of lignin in polypropylene and recycled polypropylene[J].Polym Degrad Stab,2005,89:553-558.
[13]郑秋闿,范晶晶,王林同,等.二氢杨梅素对高分子材料的抗氧化作用[J].化学通报,2015,78(3):254-258.
[14]FU L,XU B T,XU X R,et al.Antioxidant capacities and total phenolic contents of 62 fruits[J].Food Chem,2011,129:345-350.
[15]葛铁军,刘禹.聚丙烯耐老化改性研究[J].塑料科技,2015,43(7):70-74.
[16]张金柱,汪信,陆路德,等.纳米无机粒子对塑料增强增韧的裂缝与银纹相互转化机理[J].工程塑料应用,2003,31(1):20-22.