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甲基丙烯酸缩水甘油酯（GMA）对可生物降解 PLA/PBAT 共混物及其纳米复合材料的热、力学和形态性能的影响。

Effect of glycidyl methacrylate (GMA) on the thermal, mechanical and morphological property of biodegradable PLA/PBAT blend and its nanocomposites.

机构信息

Laboratory for Advanced Research in Polymeric Materials (LARPM), CIPET Bhubaneswar 751024, India.

出版信息

Bioresour Technol. 2010 Nov;101(21):8406-15. doi: 10.1016/j.biortech.2010.05.075. Epub 2010 Jun 22.

DOI:10.1016/j.biortech.2010.05.075
PMID:20573502
Abstract

Poly(lactic acid) (PLA)/Polybutylene adipate co-terephthalate (PBAT) blend and its nanocomposites were prepared using melt blending technique. Glycidyl methacrylate (GMA) has been used as a reactive compatibilizer to improve the interface between PLA and PBAT. Mechanical studies indicated an increase in impact strength and tensile modulus of PLA matrix with the increase in PBAT loading. PLA/PBAT blend prepared at ratio of 75:25 exhibited optimum impact strength. Further, incorporation of GMA to the tune of 5wt.% and nanoclay shows an increase of impact strength. Morphological interpretations through SEM reveals improved interfacial adhesion between the PLA/PBAT blend in presence of GMA and nanoclay. XRD studies indicated an increase in d-spacing in PLA/PBAT/C20A blend nanocomposite thus revealing intercalated morphology. DSC and TGA thermograms also showed improved thermal properties as compared with virgin PLA. DMA tests revealed an increase in damping factor, confirming strong influence between PLA/PBAT blend in presence of GMA and nanoclay.

摘要

聚乳酸（PLA）/聚丁二酸丁二醇酯共对苯二甲酸酯（PBAT）共混物及其纳米复合材料是通过熔融共混技术制备的。甲基丙烯酸缩水甘油酯（GMA）用作反应性增容剂，以改善 PLA 和 PBAT 之间的界面。力学研究表明，随着 PBAT 负载量的增加，PLA 基体的冲击强度和拉伸模量均有所提高。在 75:25 的比例下制备的 PLA/PBAT 共混物表现出最佳的冲击强度。此外，当 GMA 的含量增加到 5wt.%和纳米粘土时，冲击强度也会增加。通过 SEM 进行的形态学解释表明，在 GMA 和纳米粘土的存在下，PLA/PBAT 共混物的界面粘附性得到了改善。XRD 研究表明，PLA/PBAT/C20A 共混物纳米复合材料的层间距增加，从而显示出插层形态。DSC 和 TGA 热图谱也显示出与原始 PLA 相比，热性能得到了改善。DMA 测试表明，阻尼因子增加，证实了 GMA 和纳米粘土存在下 PLA/PBAT 共混物之间的强烈影响。

相似文献

[1]
Effect of glycidyl methacrylate (GMA) on the thermal, mechanical and morphological property of biodegradable PLA/PBAT blend and its nanocomposites.

Bioresour Technol. 2010-6-22

[2]
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[3]
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引用本文的文献

[1]
Structure, Mechanical Properties, and Rheological Characteristics of Poly(Butylene Adipate-co-Terephthalate)-Polylactic Acid Blends Modified via In Situ Maleic Anhydride Grafting.

Polymers (Basel). 2025-8-21

[2]
Development of an Antibacterial Poly(Lactic Acid)/Poly(ε-Caprolactone)/Tributyl Citrate Film Loaded with Bacteriophages Using a Sodium Alginate Coating.

Int J Mol Sci. 2025-8-12

[3]
Stretchability and Melt Strength Enhancement of Biodegradable Polymer Blends for Packaging Solutions.

Molecules. 2025-7-31

[4]
A New Approach in PLS/TPS Compatibilization Using Garlic Oil: Effect on Morphological and Antioxidant Properties.

Antioxidants (Basel). 2024-12-23

[5]
Biopolymeric Blends of Thermoplastic Starch and Polylactide as Sustainable Packaging Materials.

Polymers (Basel). 2024-5-1

[6]
Enhanced Mechanical Properties of Polylactic Acid/Poly(Butylene Adipate-co-Terephthalate) Modified with Maleic Anhydride.

Polymers (Basel). 2024-2-14

[7]
Producing Blends of Polybutylene Adipate Terephthalate and Blood Meal That Are Safe to Render.

Polymers (Basel). 2023-9-13

[8]
Going beyond Cellulose and Chitosan: Synthetic Biodegradable Membranes for Drinking Water, Wastewater, and Oil-Water Remediation.

ACS Omega. 2023-7-3

[9]
Effect of Styrene-Maleic Anhydride Copolymer on Properties of PBST/PLA Blends.

Polymers (Basel). 2023-2-15

[10]
Modifying Anti-Compression Property and Water-Soluble Ability of Polyglycolic Acid via Melt Blending with Polyvinyl Alcohol.

Polymers (Basel). 2022-8-18

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