Study on preparation and durability of toughened poly（3⁃hydroxybutyrate⁃co-3⁃hydroxyvalerate）/polycarbonate blending films

doi:10.19491/j.issn.1001-9278.2024.10.003

Abstract

Abstract:

The toughened poly（3⁃hydroxybutyrate⁃co⁃3⁃hydroxyvalerate）（PHBV）/polypropylene carbonate （PPC） blending films were prepared through solid⁃phase stretching and then characterized by using universal tensile testing machine， small⁃angle/wide⁃angle X⁃ray scattering instrument， SEM， and DSC. The PHBV/PPC blending films exhibited an increase in elongation at break by about 66 % and in tensile strength by 642.9 % at a stretching temperature of 55 ºC， a stretching rate of 300 mm/min， and a stretching ratio 3. The degree of orientation of the blending films was increased from 0.88 % to 38.96 % at a stretching ratio of 3. This effectively promotes the crystallization of PHBV and generates a positive effect on its durability of PHBV， resulting in more stable performance. The toughness of the unstretched blending film decreased by 94.8 %， whereas there was only a reduction by 46 % in the toughness of the blending film at a stretching ratio of 3.

Key words: poly（3?hydroxybutyrate?co?3?hydroxyvalerate）, polycarbonate, solid?phase stretching, mechanical property

CLC Number:

TQ323.4

LYU Dongxuan, XU Pengwu, YANG Weijun, NIU Deyu, SUN Yujie, MA Piming. Study on preparation and durability of toughened poly（3⁃hydroxybutyrate⁃co-3⁃hydroxyvalerate）/polycarbonate blending films[J]. China Plastics, 2024, 38(10): 10-15.

Figures/Tables 9

Fig.1. Prestretching stress⁃strain curves at different temperatures

Fig.2. Mechanical properties of the samples at different pre stretching ratios

Fig.3. Wide angle two⁃dimensional images of splines under different stretching ratios

Fig.4. Azimuth integral intensity distribution curve of PHBV and the orientation degree of PHBV （020） crystal plane

Fig.5. Microstructure of unetched and acetone⁃etched blend films， and average size distribution of PPC phase in tensile direction

Fig.6. DSC curves and PHBV crystallinity of the sample at different pre⁃stretching ratios

Fig.7. Small angle diffraction two⁃dimensional images of the samples at different stretching ratios

Fig.8. Small angle diffraction one⁃dimensional images of the samples with different stretching ratios and schematic diagrams of long and short periods

Fig.9. Mechanical properties of splines with different stretching ratios after being stacked for 14 days

References 15

1	Zheng Y， Pan P. Crystallization of biodegradable and biobased polyesters： polymorphism， cocrystallization， and structure⁃property relationship［J］. Progress in Polymer Science， 2020， 109（1）： 101291.
2	Samantaray P K， Little A， Haddleton D M， et al. Poly （glycolic acid）（PGA）： A versatile building block expanding high performance and sustainable bioplastic applications［J］. Green Chemistry， 2020， 22（13）： 4 055⁃4 081.
3	Delfi M， Ghomi M， Zarrabi A， et al. Functionalization of polymers and nanomaterials for biomedical applications： antimicrobial platforms and drug carriers［J］. Prosthesis， 2020， 2（2）： 12.
4	Naseem Raasti， Montalbano Giorgia， Matthew J， et al. Influence of PCL and PHBV on PLLA thermal and mechanical properties in binary and ternary polymer blends［J］. Molecules 2022， 27（21）： 7 633.
5	Huang J， Han X， Jin Y， et al. Reinforcing and toughening modification of bio⁃based and biodegradable PHBV/BEPE blends with benzoyl peroxide by micro⁃crosslinking［J］. Polymer Bulletin， 2023， 81（8）： 1⁃16.
6	黄嘉伟，韩小龙，吴悠，等. 生物基工程聚酯弹性体对聚（3⁃羟基丁酸酯⁃co-3⁃羟基戊酸酯）的增韧改性研究［J］. 中国塑料， 2022， 36（9）： 24⁃31.
	HUANG J W， HAN X L， WU Y， et al. Toughening modification of poly （3⁃hydroxybutyrate⁃co-3⁃hydroxyvalerate） by bio⁃based engineering polyester elastomer［J］. China Plastics， 2022， 36（9）： 24⁃31.
7	Qian Wang， Xu Pengwu， Lv Dongxuan， et al. A novel strategy for the preparation of multifunctional and robust polyhydroxyalkanoates/GQDs nanocomposites with UV⁃resistance， pH⁃responsive and antibacterial properties［J］. Chemical Engineering Journal， 2023， 477：147106.
8	Meereboer K W， Pal A K， Misra M， et al. Sustainable PHBV/cellulose acetate blends： effect of a chain extender and a plasticizer［J］. Acs Omega， 2020， 5（24）： 14 221⁃14 231.
9	Li Y， Yao S， Han C， et al. Miscibility， crystallization and mechanical properties of poly ［（3‐hydroxybutyrate）‐co‐（4‐hydroxyvalerate）］/poly （propylene carbonate）/poly （vinyl acetate） ternary blends［J］. Polymer International， 2021， 70（10）： 1 544⁃1 553.
10	Shaoying C， Li L， Qi W， et al. Fabrication of （PPC/NCC）/PVA composites with inner⁃outer double constrained structure and improved glass transition temperature［J］. Carbohydrate Polymers： Scientific and Technological Aspects of Industrially Important Polysaccharides， 2018， 191： 35⁃43.
11	李家伟，张克宏，李文慧，等. 聚羟基脂肪酸酯/茶粉复合材料的制备与性能研究［J］.中国塑料， 2023， 37（6）： 10⁃15.
	LI J W， ZHANG K H， LI W H， et. al， Preparation and properties of polyhydroxyalkanoate/tea plant fiber composites［J］. China Plastics， 2023， 37（6）： 10⁃15.
12	崔成志，曹金星，刘建兰，等. 聚乳酸/热塑性聚氨酯共混材料研究进展［J］.中国塑料， 2023， 37（9）： 75⁃82.
	CUI C Z， CAO J X， LIU J L. Research progress in poly（lactic acid）/thermoplastic polyurethane blends［J］. China Plastics， 2023， 37（9）： 75⁃82.
13	Niu D， Xu P， Li J， et al. Drawing temperature⁃dependent mechanical properties of poly （glycolic acid）/poly （butylene adipate⁃co⁃terephthalate） films［J］. Macromolecules， 2022， 55（23）： 10 543⁃10 555.
14	Zhao B， McCutcheon C J， Jin K， et al. Enhanced mechanical properties of uniaxially stretched polylactide/poly （ethylene oxide）⁃b⁃poly （butylene oxide） blend films［J］. ACS Applied Polymer Materials， 2022， 4（11）： 8 705⁃8 714.
15	Mccutcheon C J， Zhao B， Jin K， et al. Crazing mechanism and physical aging of poly（lactide） toughened with poly（ethylene oxide）⁃block⁃poly（butylene oxide） diblock copolymers［J］. Macromolecules， 2020， 53（22）： 10 163⁃10 178.

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