生物聚混合物的性能提升通过与化接种的聚乙烯 (?? 乙烯酸盐-co-adipate) 的反应兼容
Kerly Samaniego-Aguilar1, Estefania Sanchez-Safont1, Ignacio Pisa-Ripoll1
1Polymers and Advanced Materials Group (PIMA), Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castelló, Spain.
Polymers
|August 29, 2024
概括
这项研究引入了与化物 (PBSA-g-MAH) 接种的聚乙烯酸盐-co-adipate,作为可生物降解的聚乙烯酸盐-co-3-hydroxyvalerate (PHBV) 和聚乙烯酸盐-co-adipate (PBSA) 混合物的兼容剂. 这种新型添加剂增强了混合物特性,提高了食品包装应用的适用性.
科学领域:
- 聚合物科学 聚合物科学
- 材料科学 材料科学 材料科学
- 生物材料工程 生物材料工程
背景情况:
- 聚3-基酸-co-3-基酸 (PHBV) 是一种可生物降解的聚合物,有可能用于食品包装.
- 由于PHBV固有的脆性,因此需要与柔性生物聚合物混合,例如聚乙烯酸盐联合合物 (PBSA).
- PHBV/PBSA混合物是不可混合的,这限制了它们的性能和应用.
研究的目的:
- 为了研究用聚丁酸-co-adipate) 接种有黄素无水化物 (PBSA-g-MAH) 作为PHBV/PBSA混合物的反应兼容剂的使用.
- 评估PBSA-g-MAH对PHBV/PBSA混合物的形态,热,机械和屏障特性的影响.
- 探索相容混合物的潜力,用于先进的食品包装.
主要方法:
- 通过反应性融混合,使用二甲氧化物 (DCP) 将PBSA与马铁化物 (MAH) 接种,以产生PBSA-g-MAH.
- PHBV/PBSA混合物是使用造挤出制成的,包含不同量的PBSA.
- 形态,热,机械 (柔性,性) 和屏障 (水,烯,氧气蒸气) 属性被表征.
主要成果:
- PBSA-g-MAH有效地使PHBV/PBSA混合物相容,得到了改善的相相互作用和减少15%PBSA的域大小的证据.
- 与不兼容的混合物相比,兼容的混合物表现出增强的柔性和性.
- 保持高达285°C的热稳定性,改善了对水,烯和氧气蒸汽的屏障特性.
结论:
- PBSA-g-MAH是一种新且有效的反应性添加剂,用于使PHBV/PBSA混合物兼容.
- 兼容性显著提高了这些可生物降解混合物的机械和屏障性能.
- 这一战略为开发基于PHBV的先进材料开发可持续食品包装解决方案提供了一个有前途的途径.
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