反应共混增韧全生物降解PLA/PBS复合材料
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摘要
通过熔融共混法制备了一系列不同质量比的PLA/PBS复合材料,研究了不同比例的PBS对PLA的增韧效果,结果发现:加入PBS后,PLA的断裂伸长率和冲击强度都有了明显的提高。PLA与PBS的最佳配比为80/20,断裂伸长率高达428. 04%,冲击强度也由纯PLA的1. 74 k J/m2上升至3. 57 k J/m2。固定PLA/PBS的质量比为80/20,加入不同质量分数的相容剂苯乙烯-甲基丙烯酸缩水甘油酯(ADR)研究ADR对PLA/PBS复合材料增容改性的影响,结果显示:ADR的加入提高了PLA/PBS复合材料的相容性,从而使PLA/PBS复合材料的力学性能也进一步提高。当ADR含量为0. 75%时,其断裂伸长率最大,数值为535. 18%。同时,PLA/PBS复合材料的热稳定性能也更好。
A series of PLA/PBS composites with different mass ratios were prepared by melt-compounding method to study the toughening effect of PBS in PLA. The elongation at break and impact strength of PLA were significantly improved with the addition of PBS. The optimal ratio of PLA to PBS was 80/20,the elongation at break was 428. 04% and the impact strength increased to 3. 57 k J/m2 compared with the 1. 74 k J/m2 of pure PLA. The mass ratio of PLA/PBS was kept at 80/20,different mass fractions of the compatibilizer styrene-glycidyl methacrylate( ADRs) was added into PLA/PBS blends, the compatibilization effect of ADRs to PLA/PBS composite was tested. It showed that the addition of ADR could enhance the compatibility between PLA and PBS and the mechanical properties of PLA/PBS composite were further improved. When the ADR content was 0. 75%,the elongation at break reached a maximum of 535. 18% and the thermal stability was enhanced.
A series of PLA/PBS composites with different mass ratios were prepared by melt-compounding method to study the toughening effect of PBS in PLA. The elongation at break and impact strength of PLA were significantly improved with the addition of PBS. The optimal ratio of PLA to PBS was 80/20,the elongation at break was 428. 04% and the impact strength increased to 3. 57 k J/m2 compared with the 1. 74 k J/m2 of pure PLA. The mass ratio of PLA/PBS was kept at 80/20,different mass fractions of the compatibilizer styrene-glycidyl methacrylate( ADRs) was added into PLA/PBS blends, the compatibilization effect of ADRs to PLA/PBS composite was tested. It showed that the addition of ADR could enhance the compatibility between PLA and PBS and the mechanical properties of PLA/PBS composite were further improved. When the ADR content was 0. 75%,the elongation at break reached a maximum of 535. 18% and the thermal stability was enhanced.
引文
[1] MURARIU M,DUBOIS P. PLA composites:from production to properties[J]. Advanced Drug Delivery Reviews,2016,107:17-46.
[2] ZHOU J,YAO Z,ZHOU C,et al. Mechanical properties of PLA/PBS foamed composites reinforced by organophilic montmorillonite[J].Journal of Applied Polymer Science,2014,131(18):40773.
[3]闫冬雪,戢觅之,王柯,等.可降解型聚丁二酸丁二醇酯/聚乳酸原位成纤增强复合材料[J].高分子材料科学与工程,2014,30(2):95-99.
[4] BHATIA A,GUPTA R K,BHATTACHARYA S N,et al. Compatibility of biodegradable poly(lactic acid)(PLA)and poly(butylene succinate)(PBS)blends for packaging application[J]. Korea Australia Rheology Journal,2007,19(3):125-131.
[5] JIA W,GONG R H,SOUTIS C,et al. Biodegradable fibre reinforced composites composed of polylactic acid and polybutylene succinate[J]. Plastics,Rubber and Composites:Macromolecular Engineering,2013,43(3):82-88.
[6] PARK S B,HWANG S Y,MOON C W,et al. Plasticizer effect of novel PBS ionomer in PLA/PBS ionomer blends[J]. Macromolecular Research,2010,18(5):463-471.
[7]蒋文柔,包睿莹,刘正英,等. PLA-g-MAH增容改性PLA/PETG共混物的结构与性能[J].高分子材料科学与工程,2013,29(3):107-110.
[8]朱玉龙,王亚慧,崔莉,等.马来酸酐接枝聚乳酸增容改性聚乳酸/细菌纤维素[J].北京服装学院学报:自然科学版,2016,36(2):40-44+57.
[9] CHUAI C,ZHAO N,LI S,et al. Study on PLA/PBS Blends[J].Advanced Materials Research,2011,197/198:1149-1152.
[10]刘映婷,唐宇航,夏浙安,等. ADR对PLA/PE-g-MA共混体系结构与性能影响[J].塑料科技,2016,44(4):66-70.
[11] AL-ITRY R,LAMNAWAR K,MAAZOUZ A. Rheological,morphological,and interfacial properties of compatibilized PLA/PBAT blends[J].Rheologica Acta,2014,53(7):501-517.
[12]苏桂仙,王佳伟,李佳,等. PLA/PBS/Nano-SiO2制备及性能研究[J].唐山师范学院学报,2017,39(5):9-12.
[13]唐海龙,陈惠灼,徐文华,等.体积拉伸形变对PLA/PBS共混物结构与性能的影响[J].塑料工业,2016,44(7):43-46.
[14]谌鹏宇,唐国翌,宋国林. PLA/PBS/BP复合材料的结构与性能研究[J].塑料科技,2014,42(7):89-94.
[15]叶丹丹,陆佳琦,钱天悦,等.聚乳酸/聚丁二酸丁二醇酯共混物的研究[J].中国塑料,2012,26(3):23-27.
[16]张遥,顾杰,王燕萍.环氧型扩链剂ADR改性PBT/PA6共混体系及其性能研究[J].合成技术及应用,2017,32(3):1-5.
[17]王小君,陈庆华,梁聪立,等.扩链剂ADR4370S对聚对苯二甲酸丁二醇酯的动态流变行为及力学性能的影响[J].高分子材料科学与工程,2015,31(10):52-56.
[18]程伟鹏,张伟阳,张俊超,等. ADR扩链对PLA/PC共混物结构与性能的影响[J].塑料工业,2015,43(3):45-50.
[19] ABDELWAHAB M A,TAYLOR S,MISRA M,et al. Thermo-mechanical characterization of bioblends from polylactide and poly(butylene adipate-co-terephthalate)and lignin[J]. Macromolecular Materials and Engineering,2015,300(3):299-311.
[2] ZHOU J,YAO Z,ZHOU C,et al. Mechanical properties of PLA/PBS foamed composites reinforced by organophilic montmorillonite[J].Journal of Applied Polymer Science,2014,131(18):40773.
[3]闫冬雪,戢觅之,王柯,等.可降解型聚丁二酸丁二醇酯/聚乳酸原位成纤增强复合材料[J].高分子材料科学与工程,2014,30(2):95-99.
[4] BHATIA A,GUPTA R K,BHATTACHARYA S N,et al. Compatibility of biodegradable poly(lactic acid)(PLA)and poly(butylene succinate)(PBS)blends for packaging application[J]. Korea Australia Rheology Journal,2007,19(3):125-131.
[5] JIA W,GONG R H,SOUTIS C,et al. Biodegradable fibre reinforced composites composed of polylactic acid and polybutylene succinate[J]. Plastics,Rubber and Composites:Macromolecular Engineering,2013,43(3):82-88.
[6] PARK S B,HWANG S Y,MOON C W,et al. Plasticizer effect of novel PBS ionomer in PLA/PBS ionomer blends[J]. Macromolecular Research,2010,18(5):463-471.
[7]蒋文柔,包睿莹,刘正英,等. PLA-g-MAH增容改性PLA/PETG共混物的结构与性能[J].高分子材料科学与工程,2013,29(3):107-110.
[8]朱玉龙,王亚慧,崔莉,等.马来酸酐接枝聚乳酸增容改性聚乳酸/细菌纤维素[J].北京服装学院学报:自然科学版,2016,36(2):40-44+57.
[9] CHUAI C,ZHAO N,LI S,et al. Study on PLA/PBS Blends[J].Advanced Materials Research,2011,197/198:1149-1152.
[10]刘映婷,唐宇航,夏浙安,等. ADR对PLA/PE-g-MA共混体系结构与性能影响[J].塑料科技,2016,44(4):66-70.
[11] AL-ITRY R,LAMNAWAR K,MAAZOUZ A. Rheological,morphological,and interfacial properties of compatibilized PLA/PBAT blends[J].Rheologica Acta,2014,53(7):501-517.
[12]苏桂仙,王佳伟,李佳,等. PLA/PBS/Nano-SiO2制备及性能研究[J].唐山师范学院学报,2017,39(5):9-12.
[13]唐海龙,陈惠灼,徐文华,等.体积拉伸形变对PLA/PBS共混物结构与性能的影响[J].塑料工业,2016,44(7):43-46.
[14]谌鹏宇,唐国翌,宋国林. PLA/PBS/BP复合材料的结构与性能研究[J].塑料科技,2014,42(7):89-94.
[15]叶丹丹,陆佳琦,钱天悦,等.聚乳酸/聚丁二酸丁二醇酯共混物的研究[J].中国塑料,2012,26(3):23-27.
[16]张遥,顾杰,王燕萍.环氧型扩链剂ADR改性PBT/PA6共混体系及其性能研究[J].合成技术及应用,2017,32(3):1-5.
[17]王小君,陈庆华,梁聪立,等.扩链剂ADR4370S对聚对苯二甲酸丁二醇酯的动态流变行为及力学性能的影响[J].高分子材料科学与工程,2015,31(10):52-56.
[18]程伟鹏,张伟阳,张俊超,等. ADR扩链对PLA/PC共混物结构与性能的影响[J].塑料工业,2015,43(3):45-50.
[19] ABDELWAHAB M A,TAYLOR S,MISRA M,et al. Thermo-mechanical characterization of bioblends from polylactide and poly(butylene adipate-co-terephthalate)and lignin[J]. Macromolecular Materials and Engineering,2015,300(3):299-311.