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中国塑料 ›› 2020, Vol. 34 ›› Issue (7): 36-43.DOI: 10.19491/j.issn.1001-9278.2020.07.006
收稿日期:
2019-10-22
出版日期:
2020-07-26
发布日期:
2020-07-26
基金资助:
Received:
2019-10-22
Online:
2020-07-26
Published:
2020-07-26
Contact:
Jing HU
E-mail:hujing@th.btbu.edu.cn
摘要:
采用熔融共混法制备聚乳酸/聚(3?羟基丁酸?co?3?羟基戊酸酯)(PLA/PHBV),以及分别添加苯乙烯?甲基丙烯酸缩水甘油酯共聚物(ADR)、柠檬酸三丁酯(TBC)的共混物PLA/PHBV/ADR和PLA/PHBV/TBC,通过注塑和熔融沉积成型(FDM)技术制备了标准测试样条,研究了添加ADR和TBC后对PLA/ PHBV共混材料及三维(3D)打印样品热学性能和力学性能的影响。结果表明,PHBV结晶度均降低,加入ADR的注塑样品断裂伸长率最大提高到32 %,加入TBC的注塑样品拉伸强度和冲击强度提高,断裂伸长率提高到2.8 %;加入ADR的3D打印制品拉伸强度降低,断裂伸长率提高,添加TBC的3D打印制品相容性得到了明显的提升,通过扫描电子显微镜(SEM)观察无明显的颗粒相,拉伸强度在改性前后无明显变化。
中图分类号:
祖钰, 任亚男, 胡晶. 聚乳酸/聚(3⁃羟基丁酸⁃co⁃3⁃羟基戊酸酯)共混材料3D打印线材改性研究[J]. 中国塑料, 2020, 34(7): 36-43.
Yu ZU, Yanan REN, Jing HU. Study on Modification of Polylactic Acid/Poly(3⁃Hydroxybutyric Acid⁃co⁃3⁃Hydroxyvalate) Blends as 3D⁃Printing Filament[J]. China Plastics, 2020, 34(7): 36-43.
PLA/PHBV /ADR/TBC | Tg,PLA/℃ | Tg,PHBV/℃ | Tcc/℃ | ?Hcc,PHBV/ J·g-1 | Tm,PLA/℃ | Tm,PHBV/℃ | ?Hm,PHBV/ J·g-1 | ΧPHBV/% |
---|---|---|---|---|---|---|---|---|
85/15/0/0 | 55.22 | -1.76 | 114.59 | 9.25 | 149.22 | 168.50 | 10.86 | 11.72 |
80/20/0/0 | 55.52 | -1.20 | 114.09 | 10.95 | 149.68 | 168.35 | 13.86 | 15.89 |
75/25/0/0 | 55.56 | -0.78 | 104.57 | 12.30 | 149.33 | 171.83 | 17.08 | 20.89 |
70/30/0/0 | 55.62 | -1.27 | 108.15 | 14.23 | 148.97 | 171.67 | 22.23 | 29.13 |
60/35/0/0 | 55.44 | -0.43 | 105.24 | 11.53 | 149.21 | 171.80 | 21.04 | 29.69 |
85/15/0.3/0 | 59.13 | 2.37 | 136.32 | 3.15 | 152.01 | 173.88 | 3.697 | 3.99 |
80/20/0.3/0 | 60.8 | 2.67 | 131.35 | 2.97 | 152.44 | 173.32 | 3.764 | 4.32 |
75/25/0.3/0 | 59.07 | 2.23 | 132.84 | 4.70 | 151.22 | 172.65 | 6.525 | 7.98 |
70/30/0.3/0 | 59.88 | 1.90 | 130.57 | 3.94 | 150.21 | 170.33 | 6.586 | 9.63 |
65/35/0.3/0 | 59.35 | 1.88 | 121.88 | 7.99 | 151.37 | 170.66 | 14.58 | 20.58 |
85/15/0/2 | 51.8 | -1.32 | 130.08 | 1.10 | 151.68 | 172.90 | 2.94 | 13.37 |
80/20/0/2 | 53.29 | -2.23 | 132.54 | 2.94 | 150.00 | 171.54 | 7.83 | 26.71 |
75/25/0/2 | 54.14 | -2.14 | 128.89 | 4.24 | 148.62 | 169.42 | 11.29 | 30.80 |
70/30/0/2 | 53.96 | -3.23 | 113.93 | 6.62 | 148.58 | 167.00 | 17.60 | 40.01 |
65/35/0/2 | 53.99 | -3.81 | 118.48 | 6.03 | 148.40 | 166.81 | 16.04 | 31.26 |
PLA/PHBV /ADR/TBC | Tg,PLA/℃ | Tg,PHBV/℃ | Tcc/℃ | ?Hcc,PHBV/ J·g-1 | Tm,PLA/℃ | Tm,PHBV/℃ | ?Hm,PHBV/ J·g-1 | ΧPHBV/% |
---|---|---|---|---|---|---|---|---|
85/15/0/0 | 55.22 | -1.76 | 114.59 | 9.25 | 149.22 | 168.50 | 10.86 | 11.72 |
80/20/0/0 | 55.52 | -1.20 | 114.09 | 10.95 | 149.68 | 168.35 | 13.86 | 15.89 |
75/25/0/0 | 55.56 | -0.78 | 104.57 | 12.30 | 149.33 | 171.83 | 17.08 | 20.89 |
70/30/0/0 | 55.62 | -1.27 | 108.15 | 14.23 | 148.97 | 171.67 | 22.23 | 29.13 |
60/35/0/0 | 55.44 | -0.43 | 105.24 | 11.53 | 149.21 | 171.80 | 21.04 | 29.69 |
85/15/0.3/0 | 59.13 | 2.37 | 136.32 | 3.15 | 152.01 | 173.88 | 3.697 | 3.99 |
80/20/0.3/0 | 60.8 | 2.67 | 131.35 | 2.97 | 152.44 | 173.32 | 3.764 | 4.32 |
75/25/0.3/0 | 59.07 | 2.23 | 132.84 | 4.70 | 151.22 | 172.65 | 6.525 | 7.98 |
70/30/0.3/0 | 59.88 | 1.90 | 130.57 | 3.94 | 150.21 | 170.33 | 6.586 | 9.63 |
65/35/0.3/0 | 59.35 | 1.88 | 121.88 | 7.99 | 151.37 | 170.66 | 14.58 | 20.58 |
85/15/0/2 | 51.8 | -1.32 | 130.08 | 1.10 | 151.68 | 172.90 | 2.94 | 13.37 |
80/20/0/2 | 53.29 | -2.23 | 132.54 | 2.94 | 150.00 | 171.54 | 7.83 | 26.71 |
75/25/0/2 | 54.14 | -2.14 | 128.89 | 4.24 | 148.62 | 169.42 | 11.29 | 30.80 |
70/30/0/2 | 53.96 | -3.23 | 113.93 | 6.62 | 148.58 | 167.00 | 17.60 | 40.01 |
65/35/0/2 | 53.99 | -3.81 | 118.48 | 6.03 | 148.40 | 166.81 | 16.04 | 31.26 |
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