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Optimisation of alginate films for sustainable food packaging applications

用于可持续食品包装应用的海藻酸盐薄膜的优化

基本信息

批准号：
2689161
负责人：
金额：
--
依托单位：
University of Strathclyde
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2021
资助国家：
英国
起止时间：
2021 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2689161
关键词：
Optimisation alginate films sustainable food

项目摘要

Plastic waste has a hugely detrimental impact on the environment and there is mounting pressure on industry to replace traditional polluting petrochemical polymers with sustainably-sourced polymers. Plastic film food packaging, while single-use, plays an important role in extending the shelf life of food and reducing food waste that is a significant contributor to greenhouse gases. However, plastic film food packaging is not easily recycled and it is desirable to replace this film with compostable, sustainably-sourced alternatives. Alginate, sourced from seaweed, is a promising sustainable and compostable polymer. Oceanium is developing innovative and sustainable seaweed-based products, such as alginate-based plastics, and have demonstrated experimental proof-of-concept for the conversion of seaweed-based biopackaging materials into home-compostable film and board. However, the applications are limited due to performance characteristics.The aim of the project is to improve the performance of alginate films for food packaging made with Oceanium Ltd feedstock (seaweed), developing a manufacturing route that is directly translatable to industrial processes. In order to accelerate the optimisation we will use simulation to gain insight into how the molecular interactions between alginate, plasticisers and filler particles affect the film's molecular structure. In order to achieve the aims of optimized properties and facile manufacturing, we will use experiment to investigate how 1) the processing conditions, 2) addition of plasticisers, and 3) addition of fillers affect alginate film properties and performance. From these we will design the optimal manufacturing formulation for Oceanium feedstock.

塑料废物对环境有着巨大的不利影响，工业界越来越大的压力要求用可持续来源的聚合物取代传统的污染石化聚合物。塑料薄膜食品包装虽然是一次性使用的，但在延长食品保质期和减少食品浪费方面发挥着重要作用，而食品浪费是温室气体的重要来源。然而，塑料薄膜食品包装不容易回收，希望用可堆肥的，可持续来源的替代品取代这种薄膜。来源于海藻的海藻酸盐是一种有前途的可持续和可堆肥的聚合物。Ocephalus正在开发创新和可持续的海藻基产品，如海藻酸盐基塑料，并展示了将海藻基生物包装材料转化为家庭可堆肥薄膜和纸板的实验概念验证。该项目的目的是提高用OceaningLtd原料（海藻）制成的食品包装用海藻酸盐膜的性能，开发一种可直接转化为工业过程的生产路线。为了加速优化，我们将使用模拟来深入了解藻酸盐、增塑剂和填料颗粒之间的分子相互作用如何影响薄膜的分子结构。为了达到优化性能和易于制造的目的，我们将通过实验来研究1）加工条件，2）增塑剂的添加，3）填料的添加对海藻酸盐膜性能和性能的影响。从这些，我们将设计最佳的生产配方的海洋生物原料。