Souza Patrícia M S, Alves Rosa Maria Vercelino, Marin-Morales Maria Aparecida, Fechine Guilhermino J M
Engineering School, Mackenzie Presbyterian University, Rua da Consolação, 896, São Paulo, São Paulo 01302-907, Brazil.
Mackenzie Institute for Research in Graphene and Nanotechnologies - MackGraphe, Mackenzie Presbyterian University, Rua da Consolação, 896, São Paulo, São Paulo 01302-907, Brazil.
ACS Omega. 2025 Aug 13;10(33):38034-38045. doi: 10.1021/acsomega.5c05280. eCollection 2025 Aug 26.
Poly-(butylene adipate--terephthalate) (PBAT) nanocomposite films containing graphene oxide (GO) and carbon black (CB) were prepared through plane extrusion to assess their potential for agricultural applications. The films with 0.25% and 0.50% w/w of GO content and 1.5% w/w of CB and combinations of both fillers at the specified concentrations were characterized. CB effectively blocked UV/vis transmittance, and its combination with GO at a lower concentration resulted in satisfactory mechanical properties for mulch film applications. The formulation containing only GO (0.25%) yielded favorable results in elongation and tenacity for mulch film applications, along with effective UV/vis transmittance blocking, although not sufficient to prevent weed growth, making this film more suitable for greenhouse applications than for mulch films. In both scenarios, the presence of the fillers did not affect the biodegradation behavior of PBAT in soil, and none of the tested films exhibited any ecotoxicological effects on , highlighting the potential of the studied formulations as biodegradable and environmentally friendly agricultural films, thus encouraging further exploration in this area.
通过平面挤出制备了含有氧化石墨烯（GO）和炭黑（CB）的聚（己二酸丁二醇酯 - 对苯二甲酸丁二醇酯）（PBAT）纳米复合薄膜，以评估其在农业应用中的潜力。对含有0.25%和0.50% w/w的GO含量、1.5% w/w的CB以及两种填料在指定浓度下的组合的薄膜进行了表征。CB有效地阻断了紫外/可见光的透过率，并且其与较低浓度的GO组合产生了适用于地膜应用的令人满意的机械性能。仅含有GO（0.25%）的配方在地膜应用的伸长率和韧性方面产生了良好的结果，同时有效地阻断了紫外/可见光的透过率，尽管不足以防止杂草生长，这使得该薄膜更适合温室应用而非地膜。在这两种情况下，填料的存在均未影响PBAT在土壤中的生物降解行为，并且所测试的薄膜均未对[此处原文缺失相关内容]表现出任何生态毒理学效应，突出了所研究配方作为可生物降解和环境友好型农用薄膜的潜力，从而鼓励在该领域进行进一步探索。
