Dramatic toughness improvement of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) by supercritical carbon dioxide-assisted annealing

被引：1

作者：

Chen, Lina ^{[1
]}

Mao, Rongshui ^{[2
]}

Zhang, Li ^{[1
]}

Xu, Jinke ^{[1
]}

Li, Delong ^{[1
]}

Bao, Jinbiao ^{[1
]}

Wang, Zongbao ^{[1
]}

机构：

[1] Ningbo Univ, Fac Mat Sci & Chem Engn, Ningbo Key Lab Specialty Polymers, Ningbo 315211, Peoples R China

[2] Haitian Plast Machinery Grp Co Ltd, Ningbo, Peoples R China

来源：

POLYMERS FOR ADVANCED TECHNOLOGIES | 2021年 / 32卷 / 09期

基金：

中国国家自然科学基金;

关键词：

poly(3‐ hydroxybutyrate‐ co‐ 3‐ hydroxyvalerate); scCO(2)‐ assisted annealing; toughness; ISOTACTIC POLYPROPYLENE; MECHANICAL-PROPERTIES; BETA-FORM; BLENDS; COMPOSITES; MORPHOLOGY; BEHAVIORS; POLYMERS; INSIGHT;

D O I：

10.1002/pat.5373

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Supercritical carbon dioxide (scCO(2))-assisted annealing process has demonstrated promising prospects in the toughness enhancement of polymers. Herein, this effective method was adopted to toughen a biodegradable polymer, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV). Significantly, the greatly improved tensile toughness and impact toughness of PHBV were achieved. It is noted that the 26 times enhancement in tensile toughness and 2.4 times improvement in impact toughness were obtained for the sample treated at annealing temperature of 90 degrees C and saturation pressure of 10 MPa. More importantly, the toughness mechanism was further explored via various characterizations. It is indicated that the increment in the toughness of PHBV after scCO(2)-assisted annealing was closely related to the perfection of microstructure sample and the appearance of micro-voids.

引用

页码：3646 / 3654

页数：9

共 35 条

[1] Preparation and characterization of polyhydroxybutyrate-co-valerate (PHBV) as green composites using nano reinforcements [J].

Ashori, Alireza ;

Jonoobi, Mehdi ;

Ayrilmis, Nadir ;

Shahreki, Afsaneh ;

Fashapoyeh, Marzieh Arab .

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 2019, 136 :1119-1124

[2] New insight on the annealing induced microstructural changes and their roles in the toughening of β-form polypropylene [J].

Bai, Hongwei ;

Luo, Feng ;

Zhou, Tiannan ;

Deng, Hua ;

Wang, Ke ;

Fu, Qiang .

POLYMER, 2011, 52 (10) :2351-2360

[3] Influence of Annealing on Microstructure and Mechanical Properties of Isotactic Polypropylene with β-Phase Nucleating Agent [J].

Bai, Hongwei ;

Wang, Yong ;

Zhang, Zhijie ;

Han, Liang ;

Li, Yanli ;

Liu, Li ;

Zhou, Zuowan ;

Men, Yongfeng .

MACROMOLECULES, 2009, 42 (17) :6647-6655

[4] Toughened carbon fibre-reinforced polymer composites with nanoparticle-modified epoxy matrices [J].

Carolan, D. ;

Ivankovic, A. ;

Kinloch, A. J. ;

Sprenger, S. ;

Taylor, A. C. .

JOURNAL OF MATERIALS SCIENCE, 2017, 52 (03) :1767-1788

[5] Amplified Toughening Effect of Annealing on Isotactic Polypropylene Realized by Introducing Microvoids [J].

Chen, Jing-wei ;

Dai, Jian ;

Yang, Jing-hui ;

Zhang, Nan ;

Huang, Ting ;

Wang, Yong ;

Zhane, Chao-liang .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2014, 53 (12) :4679-4688

[6] Toughening with little stiffness loss:: Polyamide filled with ABC triblock copolymers [J].

Corte, Laurent ;

Rebizant, Valery ;

Hochstetter, Gilles ;

Tournilhac, Francois ;

Leibler, Ludwik .

MACROMOLECULES, 2006, 39 (26) :9365-9374

[7] ZnO-Reinforced Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Bionanocomposites with Antimicrobial Function for Food Packaging [J].

Diez-Pascual, Ana M. ;

Diez-Vicente, Angel L. .

ACS APPLIED MATERIALS & INTERFACES, 2014, 6 (12) :9822-9834

[8] Toughening and reinforcing wood flour/polypropylene composites with high molecular weight polyethylene under elongation flow [J].

Feng, Yanhong ;

Yuan, Zixin ;

Sun, Hang ;

He, Hezhi ;

Zhang, Guizhen .

COMPOSITES SCIENCE AND TECHNOLOGY, 2020, 200

[9] Largely improved toughness of polypropylene/long glass fiber composites by β-modification and annealing [J].

Geng, Chengzhen ;

Su, Juanjuan ;

Zhou, Caiyi ;

Bai, Hongwei ;

Yang, Guanghui ;

Fu, Qiang .

COMPOSITES SCIENCE AND TECHNOLOGY, 2014, 96 :56-62

[10] Towards high-performance polypropylene and its random copolymer: Insight into toughening mechanism of supercritical carbon dioxide assisted annealing [J].

Geng, Chengzhen ;

Yang, Guanghui ;

Bai, Hongwei ;

Li, Yuhan ;

Fu, Qiang ;

Deng, Hua .

JOURNAL OF SUPERCRITICAL FLUIDS, 2014, 87 :83-92

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